CN106332532B - A kind of temperature controllable shell of current transformer for power distribution network low pressure electric cabinet - Google Patents
A kind of temperature controllable shell of current transformer for power distribution network low pressure electric cabinet Download PDFInfo
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- CN106332532B CN106332532B CN201611028906.XA CN201611028906A CN106332532B CN 106332532 B CN106332532 B CN 106332532B CN 201611028906 A CN201611028906 A CN 201611028906A CN 106332532 B CN106332532 B CN 106332532B
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- temperature
- shell
- distribution network
- current transformer
- electric cabinet
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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)
- Cooling Or The Like Of Electrical Apparatus (AREA)
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Abstract
本发明公开了一种用于配电网低压电柜的电流互感器的可调温外壳，包括壳体，壳体包括活动连接到一起的前壳和后壳，拼接完成后的壳体中间具有通过母线的通道；前壳上开设有多组调温孔，每组调温孔的中心位置可旋转地设置有调温叶片，调温叶片可以实现调温孔的打开和关闭；后壳开设有散热孔；前壳和后壳内部设置有多个温度监测装置。本发明通过在前壳上开设调温孔，前端可旋转地设置调温叶片，旋转调温叶片可以调节调温孔的大小，使空气进入壳体内部，且与后壳开设的散热孔形成对流，调节壳体内部温度；并且在壳体内部设置温度监测装置用于提示温度是否超标，使调节温度更加准确；且前壳和后壳活动连接，制作简单，实用性强。
The invention discloses a temperature-adjustable shell for a current transformer of a low-voltage electric cabinet of a distribution network, which includes a shell, the shell includes a front shell and a rear shell that are movably connected together, and the middle of the shell after splicing is completed. Through the channel of the busbar; there are multiple groups of temperature-regulating holes on the front shell, and the center of each group of temperature-regulating holes is rotatably provided with a temperature-regulating blade, which can realize the opening and closing of the temperature-regulating hole; the rear shell is equipped with Heat dissipation holes; multiple temperature monitoring devices are arranged inside the front shell and the rear shell. In the present invention, a temperature-regulating hole is set on the front shell, and the front end is rotatably provided with a temperature-regulating blade, and the rotating temperature-regulating blade can adjust the size of the temperature-regulating hole, so that air enters the inside of the shell and forms convection with the cooling hole opened on the rear shell. , to adjust the internal temperature of the shell; and a temperature monitoring device is installed inside the shell to prompt whether the temperature exceeds the standard, so that the temperature adjustment is more accurate; and the front shell and the rear shell are movably connected, which is simple to manufacture and strong in practicability.
Description
Technical field
The present invention relates to mutual inductor Equipment Part field more particularly to a kind of current transformers for power distribution network low pressure electric cabinet
Temperature controllable shell.
Background technology
With China's economic development, the requirement to Power System Reliability is also higher and higher, as power distribution network low-pressure section
Common power equipment, contact element of the mutual inductor as connection primary system and electrical secondary system, predominantly by power distribution network
High voltage, high current information be transmitted to low-voltage, the metering of low current secondary side, measuring instrument and protective relaying device
A kind of special transformer, first winding access power grid, and secondary winding is mutually connected with measuring instrumentss, protective device etc. respectively
It connects.Mutual inductor coordinates with measuring instrumentss and metering device, can measure the voltage, electric current and electric energy of primary system；It is protected with relay
Shield and automatic device cooperation, may be constructed the electic protection to the various failures of power grid and automatically control.
It can be found that air flow property is poor in electronic box in actual job site, and temperature is for the safety of mutual inductor
Property and accuracy be affected, when the temperature rises, but still can be due to temperature problem though mutual inductor interior lines loop material is non magnetic
The metamorphosis in size occurs, it is cold that the insulating layer outside coil rack, coiling copper wire and package coil can all generate heat expansion
Contracting, changes so as to cause the mutual inductance of coil.Traditional transformer casing is mostly plastic pouring, and coil and coiling copper wire are straight
It connecing and is encapsulated by it, air is not easy to circulate, and temperature controllability is poor, for transformer current voltage transformation there are precision problem,
Even security risk.
Invention content
The object of the present invention is to provide a kind of temperature controllable shells of the current transformer for power distribution network low pressure electric cabinet, solve
Traditional transformer casing is mostly plastic pouring, and coil and coiling copper wire are directly encapsulated by it, and air is not easy to circulate, and temperature can
The poor problem of modulability.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of temperature controllable shell of current transformer for power distribution network low pressure electric cabinet of the invention, including shell, the shell
Body includes front housing and the rear shell being movably attached to together, has the channel by busbar among the shell after the completion of splicing；It is described
Multigroup temperature-regulating holes are offered on front housing, temperature-regulating holes described in every group include multiple tune for radially dissipating arrangement around from the center of circle
Warm single hole, the center of temperature-regulating holes described in every group are rotatably provided temperature adjustment blade, and institute may be implemented in the temperature adjustment blade
State the opening and closing of temperature-regulating holes；The rear shell offers heat emission hole；The front housing and rear shell are internally provided with multiple temperature prisons
Survey device.
Further, the temperature monitoring device includes the power module being serially connected, temperature measuring module and luminous two
Pole pipe；The diode is pierced by the front housing.
Further, the temperature adjustment single hole is divided into four row from the center of circle radially diverging arrangement around.
Further, the angle between the adjacent two row temperature adjustment single hole is 90 °.
Further, the temperature adjustment single hole area in temperature adjustment single hole described in same row more toward circumferencial direction is bigger.
Further, the temperature-regulating holes center offers through-hole, and temperature adjustment is rotatably provided in the through-hole
Knob, the thermoregulation knob are connect with the temperature adjustment blade；The thermoregulation knob is located on the outside of the front housing, the temperature adjustment blade
On the inside of the front housing.
Further, the thermoregulation knob includes having screw rod on the temperature adjustment blade with female screw hole, is adjusted
The mating connection that warm knob passes through screw hole and screw rod with temperature adjustment blade.
Further, display sheet is provided on the thermoregulation knob, the branch that the display sheet has and the temperature adjustment
The blade quantity that blade has is identical as position.
Further, the connection type of the front housing and rear shell is grafting.
Further, the housing bottom is provided with supporting leg.
Compared with prior art, advantageous effects of the invention are as follows：
The present invention is rotatably arranged temperature adjustment blade by opening up temperature-regulating holes, front end on front housing, and rotation temperature adjustment blade can
The heat emission hole for adjust the size of temperature-regulating holes, admitting air into enclosure interior, and being opened up with rear shell forms convection current, in adjustment housings
Portion's temperature；And whether setting temperature monitoring device is exceeded for temperature indicator inside housings, keeps adjusting temperature more accurate；
And front housing and rear shell flexible connection, making are simply, highly practical.
Description of the drawings
The invention will be further described for explanation below in conjunction with the accompanying drawings.
Fig. 1 is temperature controllable shell front view of the present invention for the current transformer of power distribution network low pressure electric cabinet；
Fig. 2 is front housing internal structure chart；
Fig. 3 is front housing and rear shell cooperation schematic diagram；
Fig. 4 is the Longitudinal cross section schematic in channel；
Fig. 5 is temperature-regulating holes schematic rear view；
Fig. 6 is thermoregulation knob and temperature adjustment blade cooperation schematic diagram；
Fig. 7 is the rearview of rear shell；
Reference sign：1, shell；2, front housing；3, rear shell；4, temperature-regulating holes；5, temperature adjustment single hole；6, temperature adjustment blade；7, it dissipates
Hot hole；8, temperature monitoring device；801, power module；802, temperature measuring module；803, diode；9, through-hole；10, temperature adjustment is revolved
Button；11, display sheet；12, supporting leg；13, slot；14, plug；15, channel.
Specific implementation mode
As shown in Figs 1-4, the one of which of the temperature controllable shell of a kind of current transformer for power distribution network low pressure electric cabinet
Specific embodiment, including shell 1, the shell 1 include front housing 2 and the rear shell 3 being movably attached to together, specifically the front housing
2 with the connection type of rear shell 3 be grafting, and front housing or rear shell are equipped with slot 13, and corresponding rear shell or front housing are equipped with plug 14；
Four angles of front housing 2 make corresponding plug 14 in rear shell 3 be inserted into, to entirety respectively there are two slot 13 in this specific embodiment
The fixation of shell can effectively reduce the quantity of screw, rivet by the way of aligning grafting, facilitate installation.After the completion of splicing
There is the channel 15 by busbar, whole shell 1 is in a cube, is square in terms of front, is drawn among shell among shell 1
Sky becomes the channel 15 by busbar, and specifically production method is that front housing 2 and rear shell 3 manufacture generation one by way of cast
Annular edge, after front housing is docked with rear shell, two annular edges, which are docked among shell, forms a busbar channel 15.Specifically middle part
15 longitudinal section of channel that cast generates is a non-positive eight edge graphs shape, and octagon height is the one third of shell square height,
It concaves, octagon is as shown in figure 4, wherein AB length is 4 times of BC length, and CD length is 2 times of BC length, and ∠ ABC are
135 °, ∠ CDE are all 135 °.
As shown in Fig. 1,2,5, four groups of temperature-regulating holes 4 are offered on the front housing 2, temperature-regulating holes 4 described in every group include that four row are in
The radial temperature adjustment single hole 5 for dissipating arrangement around from the center of circle.As shown in Figure 1, wherein A points are respectively octagonal oblique with B points
The vertex at the midpoint on side and square, the center of temperature-regulating holes 4 is located on the C points of its line midpoint.The temperature adjustment single hole 5, which divides, is
Four row are from the center of circle radially diverging arrangement around, and adjacent two angles arranged between the temperature adjustment single hole 5 are 90 °, same row
5 area of temperature adjustment single hole in the temperature adjustment single hole 5 more toward circumferencial direction is bigger；As shown in Figure 1, temperature adjustment list in this specific embodiment
The shape in hole 5 is rectangle, and the quantity of each column temperature adjustment single hole is 4, more longer toward the temperature adjustment single hole length of periphery.
As shown in Fig. 1,2,5,6,4 center of the temperature-regulating holes offers 9 (not shown) of through-hole, the through-hole 9
Thermoregulation knob 10 is inside installed, allows thermoregulation knob rotation in through-hole 9, the thermoregulation knob 10 includes with female
There is on the temperature adjustment blade 6 screw rod, thermoregulation knob 10 to pass through the mating connection of screw hole and screw rod with temperature adjustment blade 6, adjust for screw hole
The rotation of warm knob drives the rotation of temperature adjustment blade.The opening and closing of the temperature-regulating holes 4 may be implemented in the temperature adjustment blade 6, adjust
There are four blade on warm blade 6, it is mutually perpendicular between adjacent two panels, and width and temperature adjustment single hole are almost the same, can cover
Subject to temperature adjustment single hole.The thermoregulation knob 10 is located at 2 outside of the front housing, and the temperature adjustment blade 6 is located at 2 inside of the front housing.
Be located at 2 lateral ends of front housing in the thermoregulation knob 10 and display sheet 11 be installed, the branch that the display sheet 11 has with it is described
The blade quantity that temperature adjustment blade 6 has is identical as position, by observing the position of display sheet 11, can know temperature adjustment blade 6
Position facilitates adjusting.
As shown in fig. 7, the rear shell 3 offers heat emission hole 7, rear shell 3 is whole identical as front, is a non-solid pros
Body, no register, but in top and the bottom hollow out, form heat emission hole 7, every group each six, be rectangle, it is used for monitoring temperature
The fever in circuit is discharged.
As shown in Figure 1,1 bottom of the shell is equipped with supporting leg 12, it is used to support shell 1.
As shown in Fig. 2, the front housing 2 and rear shell 3, which are internally provided with two temperature monitoring device 8, is located at coil or more
Both sides.The temperature monitoring device 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 conducting wire, be then connected to temperature by a section button cell as power supply
Module 802 is measured, temperature measuring module 802 can be fixed in by colloid on winding, to ensure that the temperature measured is more accurate.
When the temperature is excessively high, temperature measuring module 802, which gives 803 signal of light emitting diode, makes it shine, to which staff can send out
Existing alarm signal, the diode 803 are pierced by the front housing 2, " temperature anomaly " mark are engraved in front housing diode location, when two
Pole tube light-emitting, then it represents that temperature is excessively high.It rotates thermoregulation knob 10 and adjusts temperature-regulating holes 4, make the circulation of 1 inner air of shell to temperature
Decline, plays the role of protecting mutual inductor, improves measurement accuracy, winding copper wire can pass through supporting leg 12 and 1 coupling part of shell
Channel, which is pierced by, to be wrapped on leading-out terminal.Shell rear surface part is covered front housing parts by integral part, plays protection
The effect of interior arrangement, simultaneously because the presence of device for monitoring temperature is necessarily slightly changed mutual inductor ambient temperature, because in addition
Shell back portion possesses normally opened heat emission hole and is used for stablizing the temperature change under routine monitoring state, and heat emission hole and temperature-regulating holes shape
At convection current, radiating efficiency is improved.
Embodiment described above is only that the preferred embodiment of the present invention is described, and is not carried out to the scope of the present invention
It limits, under the premise of not departing from design spirit of the present invention, those of ordinary skill in the art make technical scheme of the present invention
Various modifications and improvement, should all fall into claims of the present invention determination protection domain in.
Claims (10)
1. a kind of temperature controllable shell of current transformer for power distribution network low pressure electric cabinet, it is characterised in that：Including shell (1),
The shell (1) includes front housing (2) and the rear shell (3) being movably attached to together, is had among the shell (1) after the completion of splicing logical
Cross the channel (15) of busbar；Multigroup temperature-regulating holes (4) are offered on the front housing (2), the quantity of the temperature-regulating holes is four, respectively
Positioned at channel side；Temperature-regulating holes (4) described in every group include multiple temperature adjustment single holes for radially dissipating arrangement around from the center of circle
(5), the center of temperature-regulating holes (4) described in every group is rotatably provided temperature adjustment blade (6), and the temperature adjustment blade (6) can be with
Realize the opening and closing of the temperature-regulating holes (4)；The rear shell (3) offers heat emission hole (7)；The front housing (2) and rear shell (3)
It is internally provided with multiple temperature monitoring device (8).
2. the temperature controllable shell of the current transformer according to claim 1 for power distribution network low pressure electric cabinet, feature exist
In：The temperature monitoring device (8) includes the power module (801) being serially connected, temperature measuring module (802) and light-emitting diodes
It manages (803)；The diode (803) is pierced by the front housing (2).
3. the temperature controllable shell of the current transformer according to claim 1 for power distribution network low pressure electric cabinet, feature exist
In：The temperature adjustment single hole (5) is divided into four row from the center of circle radially diverging arrangement around.
4. the temperature controllable shell of the current transformer according to claim 3 for power distribution network low pressure electric cabinet, feature exist
In：Angle between the adjacent two row temperature adjustment single hole (5) is 90 °.
5. the temperature controllable shell of the current transformer according to claim 3 for power distribution network low pressure electric cabinet, feature exist
In：Temperature adjustment single hole (5) area in temperature adjustment single hole (5) described in same row more toward circumferencial direction is bigger.
6. the temperature controllable shell of the current transformer according to claim 1 for power distribution network low pressure electric cabinet, feature exist
In：Temperature-regulating holes (4) center offers through-hole (9), and thermoregulation knob is rotatably provided in the through-hole (9)
(10), the thermoregulation knob (10) connect with the temperature adjustment blade (6)；The thermoregulation knob (10) is located at the front housing (2) outside
Side, the temperature adjustment blade (6) are located on the inside of the front housing (2).
7. the temperature controllable shell of the current transformer according to claim 6 for power distribution network low pressure electric cabinet, feature exist
In：The thermoregulation knob (10) includes having screw rod, thermoregulation knob on the temperature adjustment blade (6) with female screw hole
(10) mating connection for passing through screw hole and screw rod with temperature adjustment blade (6).
8. the temperature controllable shell of the current transformer according to claim 6 for power distribution network low pressure electric cabinet, feature exist
In：Display sheet (11) is provided on the thermoregulation knob (10), the branch that the display sheet (11) has and the temperature adjustment blade
(6) blade quantity having is identical as position.
9. outside the temperature controllable of the current transformer according to any one of claims 1 to 8 for power distribution network low pressure electric cabinet
Shell, it is characterised in that：The connection type of the front housing (2) and rear shell (3) is grafting.
10. outside the temperature controllable of the current transformer according to any one of claims 1 to 8 for power distribution network low pressure electric cabinet
Shell, it is characterised in that：Shell (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 CN106332532A (en) | 2017-01-11 |
| CN106332532B true CN106332532B (en) | 2018-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5427146A (en) * | 1994-06-27 | 1995-06-27 | Bakken; Gary M. | Linearly adjustable fluid damper |
| CN102480874B (en) * | 2010-11-23 | 2016-03-23 | 赛恩倍吉科技顾问（深圳）有限公司 | The cabinet 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 |
| 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN106332532A (en) | 2017-01-11 |
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