CN106332532A - Temperature-adjustable shell of current transformer used for power distribution network low-voltage electric cabinet - Google Patents
Temperature-adjustable shell of current transformer used for power distribution network low-voltage electric cabinet Download PDFInfo
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- CN106332532A CN106332532A CN201611028906.XA CN201611028906A CN106332532A CN 106332532 A CN106332532 A CN 106332532A CN 201611028906 A CN201611028906 A CN 201611028906A CN 106332532 A CN106332532 A CN 106332532A
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- shell
- temperature
- homoiothermic
- power distribution
- distribution network
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- 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
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Distribution Board (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a temperature-adjustable shell of a current transformer used for a power distribution network low-voltage electric cabinet. The shell comprises a shell body, the shell body comprises a front shell and a rear shell which are movably connected together, and a channel for a bus to pass is formed in the middle of the shell body obtained after splicing. The front shell is provided with a plurality of groups of temperature adjusting holes, temperature adjusting blades are rotationally arranged in the middles of the temperature adjusting holes, and the temperature adjusting blades can open and close the temperature adjusting holes. Cooling holes are formed in the rear shell. Temperature monitoring devices are arranged in the front shell and the rear shell. The temperature adjusting holes are formed in the front shell, the temperature adjusting blades are rotationally arranged at the front end, and the size of the temperature adjusting holes can be adjusted by rotating the temperature adjusting blades, so air enters the shell body and forms convection with the cooling holes in the rear shell together, and temperature in the shell body is adjusted. The temperature monitoring devices are arranged in the shell and used for prompting whether temperature exceeds standards or not, and temperature adjustment is more accurate. The front shell and the rear shell are movably connected, manufacturing is easy, and practicality is high.
Description
Technical field
The present invention relates to transformer Equipment Part field, particularly relate to a kind of current transformer for power distribution network low tension cabinet
Temp. controllable shell.
Background technology
Along with China's economic development, the requirement to Power System Reliability is more and more higher, as power distribution network low-pressure section
Common power equipment, transformer is as connecting primary system and the contact element of electrical secondary system, and it is mainly power distribution network
High voltage, the information of big electric current be delivered to low-voltage, the metering of small area analysis secondary side, measuring instrument and protective relaying device
A kind of special transformator, its winding accesses electrical network, and Secondary Winding is connected mutually with measuring instruments, protection device etc. respectively
Connect.Transformer coordinates with measuring instruments and metering device, can measure the voltage of primary system, electric current and electric energy；Protect with relay
Protect and coordinate with automaton, may be constructed the electic protection of fault various to electrical network and automatically control.
In actual job site it is found that in electronic box, air flow property is poor, and temperature is for the safety of transformer
Property and accuracy impact relatively big, when temperature raises, though transformer interior loop material is non magnetic, but still can be because of temperature problem
Metamorphosis in size occurs, and it is cold that the insulating barrier outside coil rack, coiling copper cash and parcel coil all can produce flatulence of heat type
Contracting, thus cause the mutual inductance of coil to change.It is straight that traditional transformer casing is mostly plastic pouring, coil and coiling copper cash
Connecing and encapsulated by it, air is difficult to circulation, and temperature controllability is poor, there is precision problem for transformer current voltage transformation,
Even potential safety hazard.
Summary of the invention
It is an object of the invention to provide the temp. controllable shell of a kind of current transformer for power distribution network low tension cabinet, solve
Traditional transformer casing is mostly plastic pouring, coil and coiling copper cash and is directly encapsulated by it, and air is difficult to circulation, and temperature can
The problem that modulability is poor.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that
The temp. controllable shell of a kind of current transformer for power distribution network low tension cabinet of the present invention, including housing, described shell
Body includes being movably attached to fore shell together and back cover, has the passage by bus in the middle of the housing after having spliced；Described
Offer on fore shell and organize temperature-regulating holes more, often organize described temperature-regulating holes and include multiple tune dissipating arrangement radially from the center of circle to surrounding
Temperature single hole, the center often organizing described temperature-regulating holes is rotatably provided homoiothermic blade, and described homoiothermic blade can realize institute
State the opening and closing of temperature-regulating holes；Described back cover offers louvre；Described fore shell and back cover are internally provided with multiple temperature prison
Survey device.
Further, described device for detecting temperature includes power module, temperature measuring module and luminous two being serially connected
Pole is managed；Described diode passes described fore shell.
Further, described homoiothermic single hole is divided into four row to dissipate arrangement radially to surrounding from the center of circle.
Further, adjacent two angles arranged between described homoiothermic single hole are 90 °.
Further, the biggest with more homoiothermic single hole area toward circumferencial direction in homoiothermic single hole described in string.
Further, described temperature-regulating holes center offers through hole, is rotatably provided homoiothermic in described through hole
Knob, described thermoregulation knob is connected with described homoiothermic blade；Described thermoregulation knob is positioned at outside described fore shell, described homoiothermic blade
It is positioned at inside described fore shell.
Further, described thermoregulation knob includes carrying female screw, and described homoiothermic blade has screw rod, adjusts
Temperature knob and homoiothermic blade pass through being connected of screw and screw rod.
Further, described thermoregulation knob is provided with display sheet, the branch that described display sheet has and described homoiothermic
The blade quantity that blade has is identical with position.
Further, described fore shell is grafting with the connected mode of back cover.
Further, described housing bottom is provided with supporting leg.
Compared with prior art, the Advantageous Effects of the present invention is as follows:
The present invention is by offering temperature-regulating holes on fore shell, and front end is rotatably arranged homoiothermic blade, and rotating homoiothermic blade can
To regulate the size of temperature-regulating holes, admit air into enclosure interior, and the louvre offered with back cover forms convection current, in adjustment housings
Portion's temperature；And arrange whether device for detecting temperature exceeds standard for temp. indicator in enclosure interior, make regulation temperature more accurate；
And fore shell and back cover are flexibly connected, make simple, practical.
Accompanying drawing explanation
The invention will be further described in explanation below in conjunction with the accompanying drawings.
Fig. 1 is the present invention temp. controllable shell front view for the current transformer of power distribution network low tension cabinet；
Fig. 2 is fore shell cut-away view；
Fig. 3 is that fore shell coordinates schematic diagram with back cover；
Fig. 4 is the Longitudinal cross section schematic of passage；
Fig. 5 is temperature-regulating holes schematic rear view；
Fig. 6 is that thermoregulation knob coordinates schematic diagram with homoiothermic blade；
Fig. 7 is the rearview of back cover；
Description of reference numerals: 1, housing；2, fore shell；3, back cover；4, temperature-regulating holes；5, homoiothermic single hole；6, homoiothermic blade；7, dissipate
Hot hole；8, device for detecting temperature；801, power module；802, temperature measuring module；803, diode；9, through hole；10, homoiothermic rotation
Button；11, display sheet；12, supporting leg；13, slot；14, plug；15, passage.
Detailed description of the invention
As Figure 1-4, the one of which of the temp. controllable shell of a kind of current transformer for power distribution network low tension cabinet
Specific embodiment, including housing 1, described housing 1 includes being movably attached to fore shell 2 together and back cover 3, the most described fore shell
2 is that grafting, fore shell or back cover are provided with slot 13 with the connected mode of back cover 3, and corresponding back cover or fore shell are provided with plug 14；
In this specific embodiment, four angles of fore shell 2 are respectively arranged with two slots 13, make plug 14 corresponding on back cover 3 insert, in order to entirety
Fixing of housing, uses the mode of para-position grafting to be effectively reduced the quantity of screw, rivet, convenient installation.After having spliced
Having the passage 15 by bus in the middle of housing 1, housing 1 entirety is a cube, is seen as square from front, draws in the middle of shell
Sky becomes the passage 15 by bus, and specifically production method is fore shell 2 and back cover 3 all manufactures generation one by the way of cast
Annular edge, after fore shell docks with back cover, two annular edge are docked at one busbar channel 15 of housing intermediate formation.Specifically middle part
Passage 15 longitudinal section that cast generates is an anon-normal eight edge graph shape, and octagon height is 1/3rd of shell square height,
Concaving, as shown in Figure 4, wherein 4 times of AB a length of BC length, 2 times of CD a length of BC length, ∠ ABC is octagon
135 °, ∠ CDE is all 135 °.
As shown in Fig. 1,2,5, described fore shell 2 offers four groups of temperature-regulating holes 4, often organize described temperature-regulating holes 4 include four row in
The radial homoiothermic single hole 5 dissipating arrangement from the center of circle to surrounding.As it is shown in figure 1, wherein A point is the most octagonal with B point tiltedly
The midpoint on limit and foursquare summit, the center of temperature-regulating holes 4 is positioned on the C point of its line midpoint.Described homoiothermic single hole 5 is divided into
Four row dissipate arrangement radially from the center of circle to surrounding, and adjacent two angles arranged between described homoiothermic single hole 5 are 90 °, same to string
In described homoiothermic single hole 5, more homoiothermic single hole 5 area toward circumferencial direction is the biggest；As it is shown in figure 1, homoiothermic list in this specific embodiment
Hole 5 be shaped as rectangle, the quantity of each column homoiothermic single hole is 4, and the more homoiothermic single hole length toward periphery is the longest.
As shown in Fig. 1,2,5,6, described temperature-regulating holes 4 center offers through hole 9 (not shown), described through hole 9
Inside being provided with thermoregulation knob 10, make thermoregulation knob can rotate in through hole 9, described thermoregulation knob 10 includes carrying female
Screw, described homoiothermic blade 6 has screw rod, and thermoregulation knob 10 and homoiothermic blade 6 are connected by screw and screw rod, tune
The homoiothermic blade that rotarily drives of temperature knob rotates.Described homoiothermic blade 6 can realize the opening and closing of described temperature-regulating holes 4, adjusts
There are four blades on temperature blade 6, are mutually perpendicular between adjacent two panels, and width is basically identical with homoiothermic single hole, can cover
Homoiothermic single hole is as the criterion.Described thermoregulation knob 10 is positioned at outside described fore shell 2, and described homoiothermic blade 6 is positioned at inside described fore shell 2.
Being positioned at fore shell 2 lateral ends at described thermoregulation knob 10 and be provided with display sheet 11, the branch that described display sheet 11 has is with described
The blade quantity that homoiothermic blade 6 has is identical with position, by observing the position of display sheet 11, can know homoiothermic blade 6
Position, convenient regulation.
As it is shown in fig. 7, described back cover 3 offers louvre 7, back cover 3 is overall identical with front, is non-solid pros
Body, without register, but in top and the bottom hollow out, forms louvre 7, often organizes each six, be rectangle, for by monitoring temperature
The heating in loop is discharged.
As it is shown in figure 1, be provided with supporting leg 12 bottom described housing 1, it is used for supporting housing 1.
As in figure 2 it is shown, described fore shell 2 and back cover 3 are internally provided with two device for detecting temperature 8, to lay respectively at coil upper and lower
Both sides.Described device for detecting temperature 8 includes power module 801, temperature measuring module 802 and the light emitting diode being serially connected
803.Power module 801 can be first connected to diode 803 by a joint button cell as power supply, be then connected to temperature by wire
Measuring module 802, temperature measuring module 802 can be fixed on winding by colloid, the most accurate to ensure the temperature measured.
When temperature is too high, temperature measuring module 802 gives light emitting diode 803 signal makes it luminous, thus staff can send out
Existing alarm signal, described diode 803 passes described fore shell 2, engraves " temperature anomaly " in fore shell diode location and indicates, when two
Pole tube light-emitting, then it represents that temperature is too high.Rotate thermoregulation knob 10 and regulate temperature-regulating holes 4, make the circulation of housing 1 inner air thus temperature
Declining, play protection transformer, the effect of raising certainty of measurement, winding copper cash can be through supporting leg 12 and housing 1 coupling part
Passage passes and is wrapped on leading-out terminal.Front case body portion is covered by shell rear surface part by integral part, plays protection
The effect of interior arrangement, simultaneously because the existence of device for monitoring temperature necessarily makes transformer environment temperature be slightly changed, because of in addition
Shell back portion has a normally opened louvre for the variations in temperature under stable routine monitoring state, and louvre and temperature-regulating holes shape
Become convection current, improve radiating efficiency.
Embodiment described above is only that the optimal way to the present invention is described, and not carries out the scope of the present invention
Limiting, on the premise of designing spirit without departing from the present invention, technical scheme is made by those of ordinary skill in the art
Various deformation and improvement, all should fall in the protection domain that claims of the present invention determines.
Claims (10)
1. the temp. controllable shell for the current transformer of power distribution network low tension cabinet, it is characterised in that: include housing (1),
Described housing (1) includes being movably attached to fore shell (2) together and back cover (3), has logical in the middle of the housing (1) after having spliced
Cross the passage (15) of bus；Offer on described fore shell (2) and organize temperature-regulating holes (4) more, often organize described temperature-regulating holes (4) include multiple in
The radial homoiothermic single hole (5) dissipating arrangement from the center of circle to surrounding, the center often organizing described temperature-regulating holes (4) rotatably sets
Being equipped with homoiothermic blade (6), described homoiothermic blade (6) can realize the opening and closing of described temperature-regulating holes (4)；Described back cover (3)
Offer louvre (7)；Described fore shell (2) and back cover (3) are internally provided with multiple device for detecting temperature (8).
The temp. controllable shell of the current transformer for power distribution network low tension cabinet the most according to claim 1, its feature exists
In: described device for detecting temperature (8) includes power module (801), temperature measuring module (802) and the light-emitting diodes being serially connected
Pipe (803)；Described diode (803) passes described fore shell (2).
The temp. controllable shell of the current transformer for power distribution network low tension cabinet the most according to claim 1, its feature exists
In: described homoiothermic single hole (5) is divided into four row to dissipate arrangement radially to surrounding from the center of circle.
The temp. controllable shell of the current transformer for power distribution network low tension cabinet the most according to claim 3, its feature exists
In: adjacent two angles arranged between described homoiothermic single hole (5) are 90 °.
The temp. controllable shell of the current transformer for power distribution network low tension cabinet the most according to claim 3, its feature exists
In: in homoiothermic single hole (5) described in string, more homoiothermic single hole (5) area toward circumferencial direction is the biggest.
The temp. controllable shell of the current transformer for power distribution network low tension cabinet the most according to claim 1, its feature exists
In: described temperature-regulating holes (4) center offers through hole (9), and described through hole is rotatably provided thermoregulation knob in (9)
(10), described thermoregulation knob (10) is connected with described homoiothermic blade (6)；Described thermoregulation knob (10) is positioned at described fore shell (2) outward
Side, described homoiothermic blade (6) is positioned at described fore shell (2) inner side.
The temp. controllable shell of the current transformer for power distribution network low tension cabinet the most according to claim 6, its feature exists
In: described thermoregulation knob (10) includes carrying female screw, and described homoiothermic blade (6) has screw rod, thermoregulation knob
(10) with homoiothermic blade (6) being connected by screw and screw rod.
The temp. controllable shell of the current transformer for power distribution network low tension cabinet the most according to claim 6, its feature exists
In: it is provided with display sheet (11), the branch that described display sheet (11) has and described homoiothermic blade on described thermoregulation knob (10)
(6) blade quantity having is identical with position.
9. according to the temp. controllable shell of the current transformer for power distribution network low tension cabinet described in claim 1-8, its feature
It is: described fore shell (2) is grafting with the connected mode of back cover (3).
10. according to the temp. controllable shell of the current transformer for power distribution network low tension cabinet described in claim 1-8, its feature
It is: described housing (1) bottom is provided with supporting leg (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611028906.XA CN106332532B (en) | 2016-11-22 | 2016-11-22 | A kind of temperature controllable shell of current transformer for power distribution network low pressure electric cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611028906.XA CN106332532B (en) | 2016-11-22 | 2016-11-22 | A kind of temperature controllable shell of current transformer for power distribution network low pressure electric cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106332532A true CN106332532A (en) | 2017-01-11 |
| CN106332532B CN106332532B (en) | 2018-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611028906.XA Active CN106332532B (en) | 2016-11-22 | 2016-11-22 | A kind of temperature controllable shell of current transformer for power distribution network low pressure electric cabinet |
Country Status (1)
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| CN (1) | CN106332532B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5427146A (en) * | 1994-06-27 | 1995-06-27 | Bakken; Gary M. | Linearly adjustable fluid damper |
| CN102480874A (en) * | 2010-11-23 | 2012-05-30 | 鸿富锦精密工业（深圳）有限公司 | Chassis of electronic equipment |
| CN102637069A (en) * | 2011-02-15 | 2012-08-15 | 鸿富锦精密工业（深圳）有限公司 | Electronic device |
| CN203167513U (en) * | 2013-04-01 | 2013-08-28 | 安徽凯川电力保护设备有限公司 | Novel digital current transformer secondary overvoltage protection device |
| CN203619889U (en) * | 2013-12-13 | 2014-06-04 | 深圳先进技术研究院 | Moxibustion box |
| CN203770187U (en) * | 2014-03-31 | 2014-08-13 | 周洁 | Fan with air shield device |
| CN204681067U (en) * | 2015-02-09 | 2015-09-30 | 安徽亚辉电气自动化有限公司 | A kind of Current Transformer Secondary overvoltage protection device |
| CN206341537U (en) * | 2016-11-22 | 2017-07-18 | 佛山电力设计院有限公司 | A kind of temperature controllable shell of current transformer for power distribution network low tension cabinet |
-
2016
- 2016-11-22 CN CN201611028906.XA patent/CN106332532B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5427146A (en) * | 1994-06-27 | 1995-06-27 | Bakken; Gary M. | Linearly adjustable fluid damper |
| CN102480874A (en) * | 2010-11-23 | 2012-05-30 | 鸿富锦精密工业（深圳）有限公司 | Chassis of electronic equipment |
| CN102637069A (en) * | 2011-02-15 | 2012-08-15 | 鸿富锦精密工业（深圳）有限公司 | Electronic device |
| CN203167513U (en) * | 2013-04-01 | 2013-08-28 | 安徽凯川电力保护设备有限公司 | Novel digital current transformer secondary overvoltage protection device |
| CN203619889U (en) * | 2013-12-13 | 2014-06-04 | 深圳先进技术研究院 | Moxibustion box |
| CN203770187U (en) * | 2014-03-31 | 2014-08-13 | 周洁 | Fan with air shield device |
| CN204681067U (en) * | 2015-02-09 | 2015-09-30 | 安徽亚辉电气自动化有限公司 | A kind of Current Transformer Secondary overvoltage protection device |
| CN206341537U (en) * | 2016-11-22 | 2017-07-18 | 佛山电力设计院有限公司 | A kind of temperature controllable shell of current transformer for power distribution network low tension cabinet |
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| Publication number | Publication date |
|---|---|
| CN106332532B (en) | 2018-11-02 |
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