CN110187155A - Formula load device is pressed dry in a kind of direct current - Google Patents
Formula load device is pressed dry in a kind of direct current Download PDFInfo
- Publication number
- CN110187155A CN110187155A CN201910567935.0A CN201910567935A CN110187155A CN 110187155 A CN110187155 A CN 110187155A CN 201910567935 A CN201910567935 A CN 201910567935A CN 110187155 A CN110187155 A CN 110187155A
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- CN
- China
- Prior art keywords
- load
- control module
- direct current
- load device
- module
- 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.)
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Classifications
-
- 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
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
-
- 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
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts
-
- 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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
-
- 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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20172—Fan mounting or fan specifications
-
- 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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20209—Thermal management, e.g. fan control
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Physics & Mathematics (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses press dry formula load device in a kind of direct current, comprising: several ohmic load groups parallel with one another, each ohmic load group are connected in series by several resistance, and each ohmic load group is connected to DC master row by a contactor；Electric quantity acquisition module is connected with DC master row, for acquiring the electricity of DC master row；Load control module, is connected to electric quantity acquisition module and contactor, and the load control module obtains different loads according to current electricity control contactor point/conjunction.The present invention with high security, voltage feature applied widely, while operating and being easy, dimension criteria, convenient transportation.
Description
Technical field
The present invention is more particularly directed to press dry formula load device in a kind of direct current.
Background technique
Generating set is pressed in direct current currently, using on certain occasions, can be used when usually doing load test dry
Load device is pressed in formula direct current.DC voltage will be led on resistor, is converted into thermal energy, then cooperate air-foil fan that heat is discharged.
Generally the parameter of resistor can be selected according to the voltage rating of DC generation unit in design, although there is certain overload energy
Power, it is mostly very limited, and also long term overloading uses the service life for influencing whether resistor.
Existing DC load apparatus contributes to low-voltage power system, not for medium voltage DC Force system.Moreover,
Separate unit load device capacity very little, is unable to satisfy actual needs.
Summary of the invention
The object of the present invention is to provide formula load device is pressed dry in a kind of direct current, with high security, the voltage scope of application
Wide feature, while operating and being easy, dimension criteria, convenient transportation.
In order to achieve the goal above, the present invention is achieved by the following technical solutions:
Formula load device is pressed dry in a kind of direct current, its main feature is that, comprising:
Several ohmic load groups parallel with one another, each ohmic load group are connected in series by several resistance, and each described
Ohmic load group DC master row is connected to by a contactor；
Electric quantity acquisition module is connected with DC master row, for acquiring the electricity of DC master row；
Load control module is connected to electric quantity acquisition module and contactor, and the load control module is according to current electricity
Control contactor point/conjunction is measured, different loads is obtained.
Further include thermal component, be connected to load control module, the control for being issued according to load control module refers to
It enables and radiating to ohmic load group.
The thermal component includes:
Wind machine array is used to for the heat of the ohmic load group being discharged by force；
Fan control module, output end are connected to wind machine array, and input terminal is connected to load control module, the blower control
After molding block receives the control instruction that load control module issues, the wind machine array is controlled to ohmic load group air draft.
The fan control module is equipped with a power phase converting unit, and the power phase converting unit is connected to
Control power supply.
The fan control module is additionally provided with a wind machine array control unit, and the wind machine array control unit receives
The blower start stop command that load control module issues, and controlled according to the blower start stop command to each of wind machine array
The start and stop of blower.
It further includes a temperature monitoring module for being connected to load control module, institute that formula load device is pressed dry in the direct current
The temperature detecting module stated is for monitoring the temperature for pressing dry formula load device in direct current.
It connects between the contactor and DC master row a fuse.
Compared with prior art, the present invention having the advantage that
The present invention with high security, voltage feature applied widely, while operating and being easy, dimension criteria, convenient transportation.
Detailed description of the invention
Fig. 1 is the connection schematic diagram of ohmic load group of the present invention.
Fig. 2 is the structural schematic diagram that formula load device is pressed dry in a kind of direct current of the present invention.
Specific embodiment
The present invention is further elaborated by the way that a preferable specific embodiment is described in detail below in conjunction with attached drawing.
As shown in Figure 1, 2, formula load device is pressed dry in a kind of direct current, comprising: several ohmic load groups parallel with one another
1, each ohmic load group is connected in series by several resistance, and each ohmic load group is connected by a contactor 2
To DC master row 3；Electric quantity acquisition module 4 is connected with DC master row 3, for acquiring the electricity of DC master row 3；Load control
Module 5, is connected to electric quantity acquisition module 4 and contactor 2, and the load control module 5 connects according to current electricity control
Tentaculum 2 divides/closes, and obtains different loads.
It should be noted that it is then in parallel to reach the voltage for meeting test power requirement that low voltage resistor connect
Grade, while different ohmic load groups is combined into different power cells, it is connected to straightening stream contact in corresponding
On device, according to the voltage class of pressure test power supply in direct current, suitable low voltage resistor is selected to connect, low voltage resistor
Selection and concatenated quantity are according to specifically actually being judged, combined.In addition, in a particular embodiment, pressure test electricity in direct current
Source is linked into DC master row, and above-mentioned circuit acquisition module is for being acquired inspection to the voltage and current on DC master row
It surveys, a fuse 6 of connecting between the contactor 2 and DC master row 3.
It further includes thermal component that formula load device is pressed dry in the direct current, is connected to load control module 5, for according to negative
The control instruction that control module 5 issues is carried to radiate to ohmic load group 1.
Further, the thermal component includes: wind machine array 71, is used for the heat of the ohmic load group is strong
Row discharge；Fan control module 72, output end are connected to wind machine array 71, and input terminal is connected to load control module 5, described
Fan control module 72 receive the control instruction that issues of load control module 5 after, control the wind machine array 71 to resistance
Load group air draft.
In order to guarantee to control the phase sequence correctness of power supply, it is single that the fan control module 72 is equipped with power phase conversion
Member, the power phase converting unit are connected to control power supply, which can be directly used alternating current.
The fan control module 72 is additionally provided with a wind machine array control unit, and the wind machine array control unit connects
The blower start stop command that load control module issues is received, and is controlled according to the blower start stop command to every in wind machine array
The start and stop of a blower.
In a particular embodiment, formula load device is pressed dry in the direct current, further includes one being connected to load control module 5
Temperature monitoring module 8, the temperature detecting module is for monitoring the temperature for pressing dry formula load device in direct current.
In conclusion press dry formula load device in a kind of direct current of the present invention, with high security, voltage it is applied widely
Feature, while operating and being easy, dimension criteria, convenient transportation.
It is discussed in detail although the contents of the present invention have passed through above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read above content, for of the invention
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (7)
1. pressing dry formula load device in a kind of direct current characterized by comprising
Several ohmic load groups parallel with one another, each ohmic load group are connected in series by several resistance, and each described
Ohmic load group DC master row is connected to by a contactor；
Electric quantity acquisition module is connected with DC master row, for acquiring the electricity of DC master row；
Load control module is connected to electric quantity acquisition module and contactor, and the load control module is according to current electricity
Control contactor point/conjunction is measured, different loads is obtained.
2. pressing dry formula load device in direct current as described in claim 1, which is characterized in that it further include thermal component, connection
In load control module, the control instruction for being issued according to load control module radiates to ohmic load group.
3. pressing dry formula load device in direct current as claimed in claim 2, which is characterized in that the thermal component includes:
Wind machine array is used to for the heat of the ohmic load group being discharged by force；
Fan control module, output end are connected to wind machine array, and input terminal is connected to load control module, the blower control
After molding block receives the control instruction that load control module issues, the wind machine array is controlled to ohmic load group air draft.
4. pressing dry formula load device in direct current as claimed in claim 3, which is characterized in that the fan control module is equipped with
One power phase converting unit, the power phase converting unit are connected to control power supply.
5. pressing dry formula load device in direct current as described in claim 3 or 4, which is characterized in that the fan control module
It is additionally provided with a wind machine array control unit, the wind machine array control unit receives the blower start and stop that load control module issues
Order, and the start and stop to each blower in wind machine array are controlled according to the blower start stop command.
6. pressing dry formula load device in direct current as described in claim 1, which is characterized in that further include one being connected to load control
The temperature monitoring module of module, the temperature detecting module is for monitoring the temperature for pressing dry formula load device in direct current.
7. pressing dry formula load device in direct current as described in claim 1, which is characterized in that the contactor and DC master row
Between connect a fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910567935.0A CN110187155A (en) | 2019-06-27 | 2019-06-27 | Formula load device is pressed dry in a kind of direct current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910567935.0A CN110187155A (en) | 2019-06-27 | 2019-06-27 | Formula load device is pressed dry in a kind of direct current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110187155A true CN110187155A (en) | 2019-08-30 |
Family
ID=67723842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910567935.0A Pending CN110187155A (en) | 2019-06-27 | 2019-06-27 | Formula load device is pressed dry in a kind of direct current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110187155A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114089212A (en) * | 2021-11-19 | 2022-02-25 | 广东福德电子有限公司 | Load with variable voltage and constant and adjustable current |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203385754U (en) * | 2013-08-23 | 2014-01-08 | 中国船舶重工集团公司第七〇三研究所无锡分部 | Large-power medium-voltage direct-current load |
| CN204129185U (en) * | 2014-10-14 | 2015-01-28 | 陕西艾特隆技术有限公司 | AC load |
| CN204595181U (en) * | 2015-03-31 | 2015-08-26 | 安徽工程大学 | Based on the device of TMS320F2812 DC Electronic Loads |
| CN204758800U (en) * | 2015-07-23 | 2015-11-11 | 成都和晟航空技术有限公司 | Direct current combination load system |
| CN109164338A (en) * | 2018-07-20 | 2019-01-08 | 中国船舶重工集团公司第七O三研究所无锡分部 | A kind of high-power middle straightening with on-line monitoring function drains off formula load device |
| CN210376465U (en) * | 2019-06-27 | 2020-04-21 | 中国船舶电站设备有限公司 | Direct current medium voltage dry-type load device |
-
2019
- 2019-06-27 CN CN201910567935.0A patent/CN110187155A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203385754U (en) * | 2013-08-23 | 2014-01-08 | 中国船舶重工集团公司第七〇三研究所无锡分部 | Large-power medium-voltage direct-current load |
| CN204129185U (en) * | 2014-10-14 | 2015-01-28 | 陕西艾特隆技术有限公司 | AC load |
| CN204595181U (en) * | 2015-03-31 | 2015-08-26 | 安徽工程大学 | Based on the device of TMS320F2812 DC Electronic Loads |
| CN204758800U (en) * | 2015-07-23 | 2015-11-11 | 成都和晟航空技术有限公司 | Direct current combination load system |
| CN109164338A (en) * | 2018-07-20 | 2019-01-08 | 中国船舶重工集团公司第七O三研究所无锡分部 | A kind of high-power middle straightening with on-line monitoring function drains off formula load device |
| CN210376465U (en) * | 2019-06-27 | 2020-04-21 | 中国船舶电站设备有限公司 | Direct current medium voltage dry-type load device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114089212A (en) * | 2021-11-19 | 2022-02-25 | 广东福德电子有限公司 | Load with variable voltage and constant and adjustable current |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190830 |
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| RJ01 | Rejection of invention patent application after publication |