CN206341537U - A kind of temperature controllable shell of current transformer for power distribution network low tension cabinet - Google Patents
A kind of temperature controllable shell of current transformer for power distribution network low tension cabinet Download PDFInfo
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- CN206341537U CN206341537U CN201621252365.4U CN201621252365U CN206341537U CN 206341537 U CN206341537 U CN 206341537U CN 201621252365 U CN201621252365 U CN 201621252365U CN 206341537 U CN206341537 U CN 206341537U
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Abstract
The utility model discloses a kind of temperature controllable shell of the current transformer for power distribution network low tension cabinet, including housing, housing includes being movably attached to fore shell and rear shell together, has the passage by bus in the middle of the housing after the completion of splicing；Multigroup temperature-regulating holes are offered on fore shell, the center of every group of temperature-regulating holes is rotatably provided temperature adjustment blade, and temperature adjustment blade can realize the opening and closing of temperature-regulating holes；Shell offers heat emission hole afterwards；Fore shell and rear shell are internally provided with multiple device for detecting temperature.The utility model is rotatably arranged temperature adjustment blade by opening up temperature-regulating holes, front end on fore shell, and rotation temperature adjustment blade can adjust the size of temperature-regulating holes, admits air into enclosure interior, and the heat emission hole formation convection current opened up with rear shell, adjustment housings internal temperature；And set device for detecting temperature whether exceeded for temperature indicator in enclosure interior, make regulation temperature more accurate；And fore shell and rear shell are flexibly connected, make simple, it is practical.
Description
Technical field
The utility model is related to transformer Equipment Part field, more particularly to a kind of electric current for power distribution network low tension cabinet is mutual
The temperature controllable shell of sensor.
Background technology
With China's economic development, requirement to Power System Reliability also more and more higher is used as power distribution network low-pressure section
Common power equipment, transformer is as connection primary system and the contact element of electrical secondary system, and it is predominantly by power distribution network
High voltage, the information transmission of high current is to low-voltage, the metering of low current secondary side, measuring instrument and protective relaying device
A kind of special transformer, its first winding access power network, secondary winding is mutually connected with measuring instrumentss, protection device etc. respectively
Connect.Transformer coordinates with measuring instrumentss and metering device, can measure the voltage, electric current and electric energy of primary system；Protected with relay
Shield and automatics coordinate, and may be constructed to the electic protections of the various failures of power network 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 transformer
Property and accuracy influence it is larger,, but still can be because of temperature problem though transformer interior lines loop material is non magnetic when temperature raise
Occurs the metamorphosis in size, it is cold that coil rack, coiling copper cash and the insulating barrier wrapped up outside coil can all produce heat expansion
Contracting, so as to cause the mutual inductance of coil to change.Traditional transformer casing is mostly plastic pouring, and coil and coiling copper cash are straight
Connect and encapsulated by it, air is difficult circulation, temperature controllability is poor, there is precision problem for transformer current voltage transformation,
Even potential safety hazard.
Utility model content
The purpose of this utility model is to provide a kind of temperature controllable shell of the current transformer for power distribution network low tension cabinet,
It is mostly plastic pouring to solve traditional transformer casing, and coil and coiling copper cash are directly encapsulated by it, and air is difficult circulation, temperature
Spend the problem of controllability is poor.
In order to solve the above technical problems, the utility model is adopted the following technical scheme that：
A kind of temperature controllable shell of current transformer for power distribution network low tension cabinet of the utility model, including housing, institute
Stating housing includes being movably attached to fore shell and rear shell together, has the passage by bus in the middle of the housing after the completion of splicing；
Multigroup temperature-regulating holes are offered on the fore shell, temperature-regulating holes described in every group include multiple radially dissipated from the center of circle to surrounding and arranged
Temperature adjustment single hole, the center of temperature-regulating holes described in every group is rotatably provided temperature adjustment blade, and the temperature adjustment blade can be real
The opening and closing of the existing temperature-regulating holes；The rear shell offers heat emission hole；The fore shell and rear shell are internally provided with multiple temperature
Spend monitoring device.
Further, the device for detecting temperature includes power module, the temperature measuring module and luminous two being serially connected
Pole pipe；The diode passes the fore shell.
Further, the temperature adjustment single hole is divided into four row arrangement is radially dissipated to surrounding from the center of circle.
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 in through hole, the through hole and is rotatably provided temperature adjustment
Knob, the thermoregulation knob is connected with the temperature adjustment blade；The thermoregulation knob is located on the outside of the fore shell, the temperature adjustment blade
On the inside of the fore shell.
Further, the thermoregulation knob is included with female screw, has screw rod on the temperature adjustment blade, adjusts
The mating connection that warm knob passes through screw and screw rod with temperature adjustment blade.
Further, display piece is provided with the thermoregulation knob, the branch that the display piece has and the temperature adjustment
The blade quantity that blade has is identical with position.
Further, the fore shell and the connected mode of rear shell are grafting.
Further, the housing bottom is provided with supporting leg.
Compared with prior art, Advantageous Effects of the present utility model are as follows：
The utility model is rotatably arranged temperature adjustment blade by opening up temperature-regulating holes, front end on fore shell, rotates temperature adjustment leaf
Piece can adjust the size of temperature-regulating holes, admit air into enclosure interior, and the heat emission hole formation convection current opened up with rear shell, adjust shell
Body internal temperature；And set device for detecting temperature whether exceeded for temperature indicator in enclosure interior, make regulation temperature more
Accurately；And fore shell and rear shell are flexibly connected, make simple, it is practical.
Brief description of the drawings
The utility model is described in further detail for explanation below in conjunction with the accompanying drawings.
Fig. 1 is the temperature controllable shell front view for the current transformer that the utility model is used for power distribution network low tension cabinet；
Fig. 2 is fore shell cut-away view；
Fig. 3 is fore shell and rear shell cooperation schematic diagram；
Fig. 4 is the Longitudinal cross section schematic of passage；
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；
Description of reference numerals：1st, housing；2nd, fore shell；3rd, rear shell；4th, temperature-regulating holes；5th, temperature adjustment single hole；6th, temperature adjustment blade；7th, dissipate
Hot hole；8th, device for detecting temperature；801st, power module；802nd, temperature measuring module；803rd, diode；9th, through hole；10th, temperature adjustment is revolved
Button；11st, piece is shown；12nd, supporting leg；13rd, slot；14th, plug；15th, passage.
Embodiment
As Figure 1-4, the one of which of the temperature controllable shell of a kind of current transformer for power distribution network low tension cabinet
Specific embodiment, including housing 1, the housing 1 include being movably attached to fore shell 2 and rear shell 3 together, specifically the fore shell
2 be grafting with the connected mode of rear shell 3, and fore shell or rear shell are provided with slot 13, and corresponding rear shell or fore shell are provided with plug 14；
Respectively there are two slots 13 at four angles of fore shell 2 in this specific embodiment, insert corresponding plug 14 on rear shell 3, to entirety
The fixation of housing, is effectively reduced the quantity of screw, rivet by the way of contraposition grafting, convenient to install.After the completion of splicing
There is the passage 15 by bus, overall housing 1 is in a cube, is seen as drawing in the middle of square, shell from front in the middle of housing 1
Sky turns into the passage 15 by bus, and specifically production method is that fore shell 2 and rear shell 3 manufacture generation one by way of cast
Annular edge, after fore shell is docked with rear shell, two annular edges, which are docked in the middle of housing, forms a busbar channel 15.In the middle part of specifically
The longitudinal section of passage 15 of cast generation is the edge graph shape of an anon-normal eight, and octagon is highly 1/3rd of shell square height,
Concave, 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 fore shell 2, temperature-regulating holes 4 described in every group include four row and are in
The temperature adjustment single hole 5 of the radial diverging arrangement from the center of circle to surrounding.As shown in figure 1, wherein A points are respectively octagonal oblique with B points
The midpoint on side and the summit of square, the center of temperature-regulating holes 4 are located on the C points of its line midpoint.5 points of the temperature adjustment single hole is
It is 90 °, same row that four row radially dissipate the angle between arrangement, the adjacent two row temperature adjustment single hole 5 to surrounding from the center of circle
The area of temperature adjustment single hole 5 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
Hole 5 is shaped as rectangle, and the quantity of each column temperature adjustment single hole is 4, the more temperature adjustment single hole length toward periphery is longer.
As shown in Fig. 1,2,5,6, the center of temperature-regulating holes 4 offers the (not shown) of through hole 9, the through hole 9
Thermoregulation knob 10 is inside installed, thermoregulation knob is rotated in through hole 9, the thermoregulation knob 10 is included with female
There is screw rod, thermoregulation knob 10 and mating connection of the temperature adjustment blade 6 by screw and screw rod on screw, the temperature adjustment blade 6, adjust
The temperature adjustment blade that rotarily drives of warm knob rotates.The temperature adjustment blade 6 can realize the opening and closing of the temperature-regulating holes 4, adjust
Having on warm blade 6 be mutually perpendicular between four blades, adjacent two panels, and width and temperature adjustment single hole are basically identical, can cover
Temperature adjustment single hole is defined.The thermoregulation knob 10 is located at the outside of fore shell 2, and the temperature adjustment blade 6 is located at the inner side of fore shell 2.
Display piece 11 is installed positioned at the lateral ends of fore shell 2 in the thermoregulation knob 10, the branch that has of display piece 11 with it is described
The blade quantity that temperature adjustment blade 6 has is identical with position, and the position of piece 11 is shown by observing, temperature adjustment blade 6 can be known
Position, convenient regulation.
As shown in fig. 7, the rear shell 3 offers heat emission hole 7, rear shell 3 is overall identical with 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, for by monitoring temperature
The heating discharge in loop.
As shown in figure 1, the bottom of housing 1 is provided with supporting leg 12, for supporting housing 1.
It is located at respectively above and below coil as shown in Fig. 2 the fore shell 2 and rear shell 3 are internally provided with two device for detecting temperature 8
Both sides.The 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 wire, be then connected to temperature by a section button cell as power supply
Module 802 is determined, temperature measuring module 802 can be fixed on winding by colloid, it is more accurate to ensure the temperature determined.
When temperature is too high, temperature measuring module 802, which gives the signal of light emitting diode 803, makes it light, so that staff can send out
Existing alarm signal, the diode 803 passes the fore shell 2, " temperature anomaly " sign is engraved in fore shell diode location, when two
Pole tube light-emitting, then it represents that temperature is too high.The regulation temperature-regulating holes 4 of thermoregulation knob 10 are rotated, make the circulation of the inner air of housing 1 so as to temperature
Decline, play a part of protection transformer, improve measurement accuracy, winding copper cash can be by supporting leg 12 and the coupling part of housing 1
Passage, which is passed, 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 transformer environment temperature, therefore outside
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
Into convection current, radiating efficiency is improved.
Embodiment described above is only that preferred embodiment of the present utility model is described, not to of the present utility model
Scope is defined, on the premise of the utility model design spirit is not departed from, and those of ordinary skill in the art are new to this practicality
Various modifications and improvement that the technical scheme of type is made, all should fall into the protection domain of the utility model claims determination
It is interior.
Claims (10)
1. a kind of temperature controllable shell of current transformer for power distribution network low tension cabinet, it is characterised in that：Including housing（1）,
The housing（1）Including being movably attached to fore shell together（2）With rear shell（3）, the housing after the completion of splicing（1）Centre has logical
Cross the passage of bus（15）；The fore shell（2）On offer multigroup temperature-regulating holes（4）, temperature-regulating holes described in every group（4）It is in including multiple
The temperature adjustment single hole of the radial diverging arrangement from the center of circle to surrounding（5）, temperature-regulating holes described in every group（4）Center rotatably set
It is equipped with temperature adjustment blade（6）, the temperature adjustment blade（6）The temperature-regulating holes can be realized（4）Opening and closing；The rear shell（3）
Offer heat emission hole（7）；The fore shell（2）With rear shell（3）It is internally provided with multiple device for detecting temperature（8）.
2. the temperature controllable shell of the current transformer according to claim 1 for power distribution network low tension cabinet, its feature exists
In：The device for detecting temperature（8）Including the power module being serially connected（801）, temperature measuring module（802）And light-emitting diodes
Pipe（803）；The diode（803）Pass the fore shell（2）.
3. the temperature controllable shell of the current transformer according to claim 1 for power distribution network low tension cabinet, its feature exists
In：The temperature adjustment single hole（5）It is divided into four row and arrangement is radially dissipated to surrounding from the center of circle.
4. the temperature controllable shell of the current transformer according to claim 3 for power distribution network low tension cabinet, its feature exists
In：The adjacent two row temperature adjustment single hole（5）Between angle be 90 °.
5. the temperature controllable shell of the current transformer according to claim 3 for power distribution network low tension cabinet, its feature exists
In：Temperature adjustment single hole described in same row（5）In more toward the temperature adjustment single hole of circumferencial direction（5）Area is bigger.
6. the temperature controllable shell of the current transformer according to claim 1 for power distribution network low tension cabinet, its feature exists
In：The temperature-regulating holes（4）Center offers through hole（9）, the through hole（9）Inside it is rotatably provided thermoregulation knob
（10）, the thermoregulation knob（10）With the temperature adjustment blade（6）Connection；The thermoregulation knob（10）Positioned at the fore shell（2）Outside
Side, the temperature adjustment blade（6）Positioned at the fore shell（2）Inner side.
7. the temperature controllable shell of the current transformer according to claim 6 for power distribution network low tension cabinet, its feature exists
In：The thermoregulation knob（10）Including with female screw, the temperature adjustment blade（6）It is upper that there is screw rod, thermoregulation knob
（10）With temperature adjustment blade（6）Pass through the mating connection of screw and screw rod.
8. the temperature controllable shell of the current transformer according to claim 6 for power distribution network low tension cabinet, its feature exists
In：The thermoregulation knob（10）On be provided with display piece（11）, the display piece（11）The branch having and the temperature adjustment blade
（6）The blade quantity having is identical with position.
9. the current transformer for power distribution network low tension cabinet according to any claim in claim 1-8 is adjustable
Warm shell, it is characterised in that：The fore shell（2）With rear shell（3）Connected mode be grafting.
10. the current transformer for power distribution network low tension cabinet according to any claim in claim 1-8 can
Temperature adjustment shell, it is characterised in that：The housing（1）Bottom is provided with supporting leg（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621252365.4U CN206341537U (en) | 2016-11-22 | 2016-11-22 | A kind of temperature controllable shell of current transformer for power distribution network low tension cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621252365.4U CN206341537U (en) | 2016-11-22 | 2016-11-22 | A kind of temperature controllable shell of current transformer for power distribution network low tension cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206341537U true CN206341537U (en) | 2017-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621252365.4U Active CN206341537U (en) | 2016-11-22 | 2016-11-22 | A kind of temperature controllable shell of current transformer for power distribution network low tension cabinet |
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| Country | Link |
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| CN (1) | CN206341537U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106332532A (en) * | 2016-11-22 | 2017-01-11 | 佛山电力设计院有限公司 | Temperature-adjustable shell of current transformer used for power distribution network low-voltage electric cabinet |
-
2016
- 2016-11-22 CN CN201621252365.4U patent/CN206341537U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106332532A (en) * | 2016-11-22 | 2017-01-11 | 佛山电力设计院有限公司 | Temperature-adjustable shell of current transformer used for power distribution network low-voltage electric cabinet |
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