CN207800317U - Heat dissipation wind channel and phase-shifting rectifier transformer - Google Patents

Abstract

The utility model provides a kind of heat dissipation wind channel and phase-shifting rectifier transformer, the phase-shifting rectifier transformer includes multiple winding coils disposed in parallel, the heat dissipation wind channel includes forced convection device and multiple gas channels disposed in parallel, and each gas channel includes an air inlet and an air outlet；The multiple gas channel is made of multiple air ducts, and the multiple air duct is looped around the outside of the multiple winding coil disposed in parallel respectively；The forced convection device is located at the air inlet or air outlet of the multiple gas channel disposed in parallel.For the utility model by the way that an air duct is arranged for each winding coil, i.e., each winding coil tool substantially increases radiating efficiency there are one independent gas channel so as to avoid the circulation in gas channel.

Description

Heat dissipation wind channel and phase-shifting rectifier transformer

Technical field

The utility model is related to phase-shifting rectifier transformer fields, whole more specifically to a kind of heat dissipation wind channel and phase shift Convertor transformer.

Background technology

In the widely applied high power load of the industries such as metallurgy, chemical industry, electric power, municipal water supply and mining, consume a large amount of Electric energy, such as the electricity charge waterworks even account for the 50% of water producing cost.With the development and automation of market economy, intelligence The raising of change degree carries out speed control using high-voltage frequency converter to high power load, not only to modified technique, raising product matter Amount is beneficial, and realizes energy saving (the energy saving up to 30%-40% having), considerably reduces production cost, can also extend Service life of equipment.

In high-voltage frequency converter, to promote the power density of phase-shifting rectifier transformer, dissipating for phase-shifting rectifier transformer is solved Heat problem often needs the ventilation air duct of design personalized.Existing ventilation air duct is more extensive, generally to meet efficient processing Technique is preferential, and sacrifices radiating efficiency and ability.

As shown in Figure 1, being the structural schematic diagram of the heat dissipation wind channel of existing phase-shifting rectifier transformer.The heat dissipation wind channel include from Core type air-introduced machine 11, wind blocker 12 and multiple gas channels.Wherein centrifugal type draught fan 11 is located at the top of gas channel；It is more A gas channel is made of multiple winding coils 13 of phase-shifting rectifier transformer respectively, and each winding coil 13 far from from One end air inlet of core type air-introduced machine 11 close to one end of centrifugal type draught fan 11 is air outlet；Wind blocker 12 setting away from It separates out on the winding coil 13 at the one third height of air port.It, can by air-flow (i.e. cooling wind) shown in the arrow in the Fig. 1 Take away the heat generated when winding coil 13 works.

Although above-mentioned wind blocker 12 can with the wind speed and air quantity of cooling wind in the gas channel in heat radiation air duct, because The wind-force radius of the partial cross section of gas channel is excessive, and windage is excessive, and the efficiency that cooling wind radiates to winding coil 13 can drop It is low, it is promoted so as to cause its heat-sinking capability limited.

As shown in Fig. 2, being improving heat radiation efficiency, it can also increase coaming plate 14 around winding coil 13, which surround In the outside of all winding coils 13.Structure shown in opposite Fig. 1, which can further improving radiating effect. But because phase-shifting rectifier transformer internal structure is complicated, in 13 periphery of all winding coils, increased coaming plate 14 can not be with winding Coil 13 is combined closely, and to which the stop portions in gas channel are more, hot-air circulation is often formed inside winding coil 13, Fully the internal heat of winding coil 13 can not all be taken out of in time, heat dissipation drawback is than more prominent.

Utility model content

The technical problem to be solved by the present invention is to ask for above-mentioned phase-shifting rectifier transformer radiating efficiency is lower Topic, provides a kind of new heat dissipation wind channel and phase-shifting rectifier transformer.

The technical solution that the utility model solves above-mentioned technical problem is to provide a kind of heat dissipation wind channel, for realizing phase shift The heat dissipation of rectifier transformer, the phase-shifting rectifier transformer include multiple winding coils disposed in parallel, the heat dissipation wind channel packet Forced convection device and multiple gas channels disposed in parallel are included, and each gas channel includes an air inlet and one A air outlet；The multiple gas channel disposed in parallel is made of multiple air ducts, and the multiple air duct is looped around institute respectively State the outside of multiple winding coils disposed in parallel；The forced convection device be located at the multiple gas channel air inlet or Air outlet.

In heat dissipation wind channel described in the utility model, the forced convection device includes multiple centrifugal type draught fans, and The multiple centrifugal type draught fan is located at the air outlet of the multiple gas channel disposed in parallel.

In heat dissipation wind channel described in the utility model, the heat dissipation wind channel further includes wind blocker, the wind blocker It is upper that there are multiple through-holes for corresponding respectively to the multiple gas channel disposed in parallel, and the wind blocker is located at the gas The air outlet of circulation road and perpendicular to the gas channel.

In heat dissipation wind channel described in the utility model, the air duct is made of insulating materials.

In heat dissipation wind channel described in the utility model, the multiple air duct is separately mounted to the multiple winding coil Outer surface, and the multiple air duct is fixed as one by fixed frame, welding, rivet or screw.

In heat dissipation wind channel described in the utility model, the winding coil distinguishes vertical setting, and the multiple centrifugation Formula air-introduced machine is located at the top of the multiple winding coil disposed in parallel.

The utility model also provides a kind of phase-shifting rectifier transformer, including multiple winding coils, which is characterized in that the shifting Commutating phase transformer further includes heat dissipation wind channel as described above.

In phase-shifting rectifier transformer described in the utility model, including three winding coils.

The heat dissipation wind channel and phase-shifting rectifier transformer of the utility model have the advantages that：By for each winding wire Circle one air duct of setting, i.e., there are one independent gas channels for each winding coil tool, so as to avoid the ring in gas channel Stream, substantially increases radiating efficiency.

By the utility model, the power density of phase-shifting rectifier transformer can be promoted, reduces phase-shifting rectifier transformer former material The dosage of material reduces cost, reduces the bulk of high-voltage frequency converter complete machine, saves social resources.

Description of the drawings

Fig. 1 is the schematic diagram of heat dissipation wind channel in existing phase-shifting rectifier transformer；

Fig. 2 is the schematic diagram of heat dissipation wind channel in another existing phase-shifting rectifier transformer；

Fig. 3 is the schematic diagram of the utility model heat dissipation wind channel embodiment.

Specific implementation mode

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain The utility model is not used to limit the utility model.

As shown in figure 3, being the schematic diagram of the utility model heat dissipation wind channel embodiment, the heat dissipation wind channel is whole for realizing phase shift The heat dissipation of convertor transformer, and the phase-shifting rectifier transformer includes multiple winding coils disposed in parallel 30.Dissipating in the present embodiment Hot-flow flue includes forced convection device 21 and multiple gas channels, and above-mentioned multiple gas channels are arranged in parallel.

Above-mentioned each gas channel includes an air inlet and an air outlet, and each gas channel is opened by a both ends The air duct 22 of mouth is constituted, i.e., multiple gas channels are made of multiple air ducts 22 respectively.Above-mentioned multiple air ducts 22 are looped around more respectively The outside of a winding coil 30.Forced convection device 21 is located at the air inlet or air outlet of multiple gas channels, cold to force But wind is flowed by the air inlet of gas channel, and is flowed out from air outlet after flowing through gas channel.

In above-mentioned heat dissipation wind channel, for each gas channel, the path for flowing through the cooling wind of winding coil 30 is unique, no It can be circulated, only be flowed by air duct 22 (i.e. gas channel) air inlet, fully in winding coil 30 by 22 outside of air duct Portion circulates, and takes away the heat generated when winding coil work in time, winding coil 30 is made to reach ideal heat dissipation effect.

Specifically, above-mentioned forced convection device 21 can be used centrifugal type draught fan, and each gas channel correspond to one from Core type wind turbine.Multiple centrifugal type draught fan is located at the air outlet of multiple gas channels, generates negative pressure at runtime, makes Cooling wind is flowed by the air inlet of gas channel, and is flowed out from air outlet after flowing through gas channel.Certainly, in practical application In, the device similar with centrifugal type draught fan can also be used in above-mentioned forced convection device 21, and installation site also can be according to phase shift The internal structure of rectifier transformer converts, such as may be mounted to the air inlet of gas channel.

Above-mentioned heat dissipation wind channel may also include wind blocker 23, and multiple gas are corresponded respectively to multiple on the wind blocker 23 The through-hole of circulation road, and wind blocker 23 is located at the air outlet of gas channel and perpendicular to gas channel.Pass through air duct 22 and gear The mutual cooperation of the shirt rim of wind partition board 23 can promote the ventilation wind speed and air quantity of phase-shifting rectifier transformer gas channel.

Above-mentioned air duct 22 can be made of insulating materials, such as be crimped by insulating sheet material, and the air duct 22 can move The stage and semi-finished product of commutating phase transformer is installed to winding coil 30, i.e., when making each winding coil 30, by air duct 22 be mounted on each winding coil 30 outer surface, finally by multiple air ducts 22 be integrated into one structure (such as by fixed frame, Welding, rivet or screw etc.).

Particularly, in above-mentioned phase-shifting rectifier transformer, multiple winding coils 30 distinguish vertical setting, and multiple winding coils It is in line.Correspondingly, gas channel also vertical setting and air duct 22 is also sequentially connected, and centrifugal type draught fan be located at it is more The top of a gas channel.

The utility model also provides a kind of phase-shifting rectifier transformer, the phase-shifting rectifier transformer include multiple winding coils with And multiple heat dissipation wind channels as described above.By heat dissipation wind channel, it can be achieved that efficient, the rapid cooling of winding coil.

When above-mentioned phase-shifting rectifier transformer, which is applied to three-phase voltage, to be converted comprising three winding coils.

The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not It is confined to this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in Change or replacement, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should It is subject to the protection scope in claims.

Claims (8)

1. a kind of heat dissipation wind channel, for realizing the heat dissipation of phase-shifting rectifier transformer, the phase-shifting rectifier transformer includes multiple flat The winding coil of row setting, which is characterized in that the heat dissipation wind channel includes forced convection device and multiple gas disposed in parallel Circulation road, and each gas channel includes an air inlet and an air outlet；The multiple gas channel is by multiple wind Cylinder is constituted, and the multiple air duct is looped around the outside of the multiple winding coil disposed in parallel respectively；The forced convertion Device is located at the air inlet or air outlet of the multiple gas channel disposed in parallel.

2. heat dissipation wind channel according to claim 1, which is characterized in that the forced convection device includes multiple centrifugal draws Wind turbine, and the multiple centrifugal type draught fan is located at the air outlet of the multiple gas channel disposed in parallel.

3. heat dissipation wind channel according to claim 2, which is characterized in that the heat dissipation wind channel further includes wind blocker, described There is multiple through-holes for corresponding respectively to the multiple gas channel disposed in parallel, and the wind blocker position on wind blocker In the gas channel air outlet and perpendicular to the gas channel.

4. heat dissipation wind channel according to claim 1, which is characterized in that the air duct is made of insulating materials.

5. heat dissipation wind channel according to claim 1, which is characterized in that the multiple air duct be separately mounted to it is the multiple around The outer surface of group coil, and the multiple air duct is fixed as one by fixed frame, welding, rivet or screw.

6. heat dissipation wind channel according to claim 2, which is characterized in that the vertical setting of winding coil, and it is the multiple Centrifugal type draught fan is located at the top of the multiple winding coil disposed in parallel.

7. a kind of phase-shifting rectifier transformer, including multiple winding coils, which is characterized in that the phase-shifting rectifier transformer further includes Heat dissipation wind channel as described in any one of claim 1-6.

8. phase-shifting rectifier transformer according to claim 7, which is characterized in that the phase-shifting rectifier transformer includes three Winding coil.