CN208889420U - A kind of isolated voltage transformer - Google Patents

Abstract

The utility model provides a kind of isolated voltage transformer, including shell and the junction pole being set on the shell, and the winding matched with the junction pole, its main feature is that being provided with divider wall between the adjacent winding, divider wall two sides corresponding with the winding are connected separately with semiconductor chilling plate, the semiconductor chilling plate has huyashi-chuuka (cold chinese-style noodles) and hot face, the exposed close winding of huyashi-chuuka (cold chinese-style noodles)；The side of the shell is additionally provided with air inlet and heat extraction mouth, sending out the hot fan is equipped at heat extraction mouth position, outside air is formed into air-flow when sending out the hot fan works and forms cold wind into the huyashi-chuuka (cold chinese-style noodles) for skimming over the semiconductor chilling plate through the air inlet, heat is discharged through the heat extraction mouth.The technical solution has great heat radiation effect, effectively prevent voltage transformer to overheat because thermal diffusivity is weak, burns coil.

Description

A kind of isolated voltage transformer

Technical field

The utility model relates to a kind of voltage transformer, especially a kind of isolated voltage transformer.

Background technique

Voltage transformer is the voltage on conversion line, is primarily used to supply to measuring instrumentss and protective relaying device Electricity, for measuring the voltage, power and electric energy of route, or in line failure valuable in protection circuit set Standby, motor and transformer；Its structure generally comprises two windings, and one is first winding, and one is secondary winding, two windings Be incorporated into or be wound on iron core, have insulation between two windings and between winding and iron core, make between two windings and There is electrical isolation between winding and iron core.

However in uninterrupted use process for a long time, voltage transformer is often easy to appear overheat because thermal diffusivity is weak, burns Coil is ruined, causes voltage transformer failure frequent occurrence.

Utility model content

The utility model offer is designed to provide a kind of a kind of isolated voltage transformer with great heat radiation effect.

To achieve the above object, technical solution of the present invention is as follows:

A kind of isolated voltage transformer connects including shell and the junction pole being set on the shell, and with described The winding that line bar matches, wherein being provided with divider wall between the adjacent winding, the divider wall is opposite with the winding The two sides answered are connected separately with semiconductor chilling plate, and the semiconductor chilling plate has huyashi-chuuka (cold chinese-style noodles) and hot face, and huyashi-chuuka (cold chinese-style noodles) is exposed close The winding；The side of the shell is additionally provided with air inlet and heat extraction mouth, and sending out the hot fan is equipped at heat extraction mouth position, Outside air formation air-flow is entered to the huyashi-chuuka (cold chinese-style noodles) shape for skimming over the semiconductor chilling plate when sending out the hot fan works through the air inlet At cold wind, heat is discharged through the heat extraction mouth.

Preferably, above-mentioned a kind of isolated voltage transformer, wherein the bottom of the divider wall be also connected with it is external Radiating block.

Preferably, above-mentioned a kind of isolated voltage transformer, wherein the divider wall is made by Heat Conduction Material, It is integrally formed with the radiating block.

Preferably, above-mentioned a kind of isolated voltage transformer, wherein also being set between the sending out the hot fan and the winding There is a radiating subassembly, the radiating subassembly includes heat conduction substrate and the multiple arcs radiating fin that is set in the heat conduction substrate, Multiple arc radiating fins are spaced apart from each other setting, form the heat dissipation wind channel of multiple arcs, the air intake vent of the heat dissipation wind channel It is arranged towards winding described in identical and face, the air outlet of the heat dissipation wind channel is correspondingly arranged with the sending out the hot fan.

Preferably, above-mentioned a kind of isolated voltage transformer, the plurality of arc radiating fin are in modularization knot Structure is arranged, and the arc radiating fin in each module is arranged concentrically.

Preferably, above-mentioned a kind of isolated voltage transformer, wherein the arc radiating fin in each module Concentric angle is 90 degree, the air intake vent of the heat dissipation wind channel of interval formation with air outlet is concordant is arranged.

Preferably, above-mentioned a kind of isolated voltage transformer, wherein being disposed adjacent at least two in the heat conduction substrate A module.

Preferably, above-mentioned a kind of isolated voltage transformer, wherein the inside diameter ranges 8mm-12mm of the heat dissipation wind channel.

The utility model is mainly reflected in the following aspects compared with the beneficial effect of the prior art:

(1) two windings are carried out zone isolation by divider wall by the technical solution respectively, and in divider wall and winding phase Corresponding two sides are separately connected semiconductor chilling plate, and the huyashi-chuuka (cold chinese-style noodles) of semiconductor chilling plate is exposed, extraneous under the action of sending out the hot fan Air formed air-flow by air inlet enter skim over semiconductor chilling plate huyashi-chuuka (cold chinese-style noodles) formed cold wind, heat is arranged through heat extraction mouth Out, the heat progress that can be generated to two windings quickly and effectively distributes discharge, plays the role of reducing internal temperature rise；In addition, The excessively high influence internal heat of the temperature rise of divider wall distributes in order to prevent, and external radiating block is also connected in the bottom of divider wall, Divider wall is preferably made using Heat Conduction Material, and heat can effectively be distributed by radiating block.

(2) technical solution is also capable of the heat that winding work generates by the way that radiating subassembly is arranged at close winding position It is effectively distributed, temperature rise is excessively high when preventing its work, and specifically, the heat that coil windings work generates is conducted to heat conduction substrate The radiating fin being arranged with heat conduction substrate inside, while adjacent radiating fin interval setting, form therebetween heat dissipation wind channel, Cooperate the effect of sending out the hot fan, the heat in heat conduction substrate can be discharged by heat extraction mouth Quick diffusing, be played preferably Heat dissipation effect.

(3) heat radiating fin structure is arranged to arcuate structure in the technical solution, and is in Modular Structure Design, on the one hand Its assembly and connection is convenient, on the other hand can effectively reduce the volume of voltage transformer, avoids because setting radiating subassembly causes Volume is excessive.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.

Fig. 1: the utility model specific embodiment structural schematic diagram.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

As shown in Figure 1, a kind of isolated voltage transformer, including shell 1 and the junction pole 2 being set on the shell 1, And the winding 3 matched with the junction pole 2, wherein being provided with divider wall 4, the isolation between the adjacent winding 3 The two sides corresponding with the winding 3 of wall 4 are connected separately with semiconductor chilling plate 5, and the semiconductor chilling plate 5 has huyashi-chuuka (cold chinese-style noodles) 50 With hot face 51, the exposed close winding 3 of huyashi-chuuka (cold chinese-style noodles) 50；The side of the shell 1 be additionally provided with air inlet (not shown) and Heat extraction mouth 10 is equipped with sending out the hot fan 6 at 10 position of heat extraction mouth, outside air is formed gas when sending out the hot fan 6 works It flows through the air inlet and enters and skim over the huyashi-chuuka (cold chinese-style noodles) 50 of the semiconductor chilling plate 5 and form cold wind, through the heat extraction mouth 10 by heat Discharge.

Two windings are carried out zone isolation by divider wall by the technical solution respectively, and corresponding with winding in divider wall Two sides be separately connected semiconductor chilling plate, the huyashi-chuuka (cold chinese-style noodles) of semiconductor chilling plate is exposed, under the action of sending out the hot fan, extraneous sky Gas forms air-flow and enters the huyashi-chuuka (cold chinese-style noodles) formation cold wind for skimming over semiconductor chilling plate by air inlet, heat is discharged through heat extraction mouth, energy Enough heat progress generated to two windings quickly and effectively distribute discharge, play the role of reducing internal temperature rise.

Wherein the bottom of the divider wall 4 is also connected with external radiating block 7.

Wherein the divider wall 4 is made by Heat Conduction Material, is integrally formed with the radiating block 7.

The excessively high influence internal heat of temperature rise of technical solution divider wall in order to prevent distributes, and also connects in the bottom of divider wall It is connected to external radiating block, divider wall is preferably made using Heat Conduction Material, and heat can effectively be distributed by radiating block.

Radiating subassembly 8 is wherein additionally provided between the sending out the hot fan 6 and the winding 3, the radiating subassembly 8 includes thermally conductive Matrix 80 and the multiple arcs radiating fin 81 being set in the heat conduction substrate 80, multiple arc radiating fins 81 are mutually Interval setting, forms the heat dissipation wind channel 82 of multiple arcs, the air intake vent of the heat dissipation wind channel 82 is towards described in identical and face Winding setting, the air outlet of the heat dissipation wind channel 82 are correspondingly arranged with the sending out the hot fan 6.

The plurality of arc radiating fin 81 is arranged in modular construction, as shown in 8a and 8b in figure, each module The arc radiating fin 81 in (8a, 8b) is arranged concentrically.

Wherein the concentric angle of the arc radiating fin 81 in each module (8a, 8b) is 90 degree, what interval was formed The air intake vent of the heat dissipation wind channel 82 with air outlet is concordant is arranged.

Wherein at least two modules (8a, 8b) has been disposed adjacent in the heat conduction substrate 80.

The wherein inside diameter ranges 8mm-12mm of the heat dissipation wind channel 82.

The technical solution also by the winding position setting radiating subassembly be capable of heat that winding work generates into Row effectively distributes, and temperature rise is excessively high when preventing its work, specifically, the heat that coil windings work generates conduct to heat conduction substrate with The radiating fin being arranged inside heat conduction substrate, while adjacent radiating fin interval setting, form therebetween heat dissipation wind channel, match The effect of sending out the hot fan is closed, the heat in heat conduction substrate can be discharged by heat extraction mouth Quick diffusing, be played and preferably dissipate Thermal effect.

It in addition, heat radiating fin structure is arranged to arcuate structure, and is in Modular Structure Design, its assembly and connection of one side It is convenient, the volume of voltage transformer on the other hand can be effectively reduced, is avoided because setting radiating subassembly causes volume excessive.

Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new The range of each embodiment technical solution of type.

Claims (8)

1. a kind of isolated voltage transformer, including shell and the junction pole being set on the shell, and with the wiring The winding that bar matches, it is characterised in that: divider wall, the divider wall and the winding are provided between the adjacent winding Corresponding two sides are connected separately with semiconductor chilling plate, and the semiconductor chilling plate has huyashi-chuuka (cold chinese-style noodles) and hot face, huyashi-chuuka (cold chinese-style noodles) exposed Close to the winding；The side of the shell is additionally provided with air inlet and heat extraction mouth, and heat extraction is equipped at heat extraction mouth position Outside air formation air-flow is entered through the air inlet when sending out the hot fan works and skims over the cold of the semiconductor chilling plate by fan Face forms cold wind, and heat is discharged through the heat extraction mouth.

2. a kind of isolated voltage transformer according to claim 1, it is characterised in that: the bottom of the divider wall also connects It is connected to external radiating block.

3. a kind of isolated voltage transformer according to claim 2, it is characterised in that: the divider wall is by Heat Conduction Material It is made, is integrally formed with the radiating block.

4. a kind of isolated voltage transformer according to claim 1, it is characterised in that: the sending out the hot fan and it is described around It is additionally provided with radiating subassembly between group, the radiating subassembly includes heat conduction substrate and the multiple arcs that are set in the heat conduction substrate Radiating fin, multiple arc radiating fins are spaced apart from each other setting, form the heat dissipation wind channel of multiple arcs, the heat dissipation wind channel Air intake vent towards winding described in identical and face be arranged, the air outlet of the heat dissipation wind channel is corresponding with the sending out the hot fan to be set It sets.

5. a kind of isolated voltage transformer according to claim 4, it is characterised in that: multiple arc radiating fins It is arranged in modular construction, the arc radiating fin in each module is arranged concentrically.

6. a kind of isolated voltage transformer according to claim 5, it is characterised in that: the arc in each module The concentric angle of radiating fin is 90 degree, the air intake vent of the heat dissipation wind channel of interval formation with air outlet is concordant is arranged.

7. a kind of isolated voltage transformer according to claim 5 or 6, it is characterised in that: phase in the heat conduction substrate Neighbour is provided at least two modules.

8. a kind of isolated voltage transformer according to claim 4, it is characterised in that: the internal diameter model of the heat dissipation wind channel Enclose 8mm-12mm.