CN202652048U

CN202652048U - Large power inversion equipment power module group

Info

Publication number: CN202652048U
Application number: CN 201220282925
Authority: CN
Inventors: 赵军; 罗力; 朱润华
Original assignee: SUNFLUX ENERGY TECHNOLOGY (HANGZHOU) Co Ltd
Current assignee: SUNFLUX ENERGY TECHNOLOGY (HANGZHOU) Co Ltd
Priority date: 2012-06-15
Filing date: 2012-06-15
Publication date: 2013-01-02
Anticipated expiration: 2022-06-15

Abstract

The present utility model relates to large-scale three-phase inversion equipment, especially to a large power inversion equipment power module group. The module group is realized through the below technical scheme, the large power inversion equipment power module group comprises three power modules, wherein each power module is used for realizing one phase inversion, and each power module is provided with an individual laminated mother row. The power module group has good heat radiation effects ad is low in energy consumption.

Description

A kind of great power conversion circuit plant capacity module group

Technical field

The utility model relates to large-scale three-phase convertor equipment, particularly a kind of great power conversion circuit plant capacity module group.

Background technology

High power contravariant system of the prior art such as China Patent No. are the air-cooled power inverter power cabinet with large of 200710029765.8 the disclosed a kind of high radiator structure of patent of invention, comprise cabinet and the power cell that is installed in the cabinet inner chamber, the relative both sides of cabinet are provided with shutter, and the top of cabinet is provided with air exhauster; Power cell is spot distribution or strip distribution at the inner chamber of cabinet, makes and forms the gap between the power cell, and the heat dissipation wind channel of these gaps and power cell forms the air channel at the inner chamber of cabinet, and the inlet scoop of air exhauster is over against the air channel.

And for example China Patent No. is 200910075267.6 the disclosed heat pipe type power module of high-efficient wind power frequency converter of patent of invention, comprise substrate, the substrate rear portion is fixed with heat-pipe radiator, the bottom of heat-pipe radiator is provided with hair-dryer, the top is provided with air inducing pipeline, is provided with air exhauster in the air inducing pipeline; It is in running, the heat that power device sends is transmitted on the heat-pipe radiator by substrate, and under the effect of heat-pipe radiator bottom hair-dryer, dissipation of heat is in air inducing pipeline, in air inducing pipeline under the effect of air exhauster, heat is extracted into rapidly the frequency-charger cabinet external body afterwards.

Above-mentioned two kinds of power cabinets generally consist of by a plurality of power models are stacked, each power model is realized A, B, the unsteady flow of three phase places of C, and often comprise several IGBT, 1 stack bus bar, 1 module radiator and some electric capacity, in this system, the unsteady flow of three phase places of ABC will be exported by the same stack bus bar, the thermal losses that unsteady flow produces will be by the same heat sink radiates, therefore, each power model adopts same air duct radiation, therefore, the air-cooled form fetch of this kind is generally vertically and is longer, and needs to adopt the larger air exhauster of power, thereby energy consumption is larger.

Also has a kind of power model group, its three power models also are vertically to be arranged on the same stack bus bar, and when power requirement needed two groups of power model groups, the IGBT assembly of these two groups of power model groups was oppositely arranged, and side between the two is provided with cooling fan, this blower fan dispels the heat to two groups of power model groups simultaneously, and this kind radiating mode is that laterally fetch is shorter, but owing to be simultaneously two groups of power models to be dispelled the heat, therefore, the power requirement of blower fan is higher, and energy consumption is larger.

The utility model content

The purpose of this utility model provides a kind of great power conversion circuit plant capacity module group, and this kind power model group has good radiating effect, and energy consumption is lower.

Above-mentioned technical purpose of the present utility model is achieved by the following technical programs: a kind of great power conversion circuit plant capacity module group, comprise three power models that each is used for realizing a phase place unsteady flow, each power model has independent stack bus bar.

In the prior art, because three power models all concentrate on the piece stack bus bar, the calorie source close together of three power models, and cool off by same radiator and air channel, therefore, need the cooling fan of higher-wattage; The utility model is because three separate settings of power model, therefore, true heat gain value is about below 1/3 of prior art total amount, and is provided with air channel and cooling fan for each power model, so the gross power of the cooling fan that adopts is little more a lot of than of the prior art.

As of the present utility model preferred, each power model comprises the IGBT assembly that is positioned at corresponding stack bus bar top, the capacitance component that is positioned at the stack bus bar bottom.

On lengthwise position, capacitance component generally all is arranged at cabinet top in the prior art, because heat all can be to external radiation, particularly upwards radiation, therefore, particularly the IGBT assembly of below also can have larger thermal radiation impact to capacitance component, and therefore, capacitance component heat radiation of the prior art is relatively poor; The utility model is because each power model be independent the setting, so the impact of the heat radiation between the power model of out of phase is less, and owing to the above-mentioned distribution form of capacitance component and IGBT assembly so that capacitance component be subjected to the IGBT assembly thermal-radiating affect less.

As of the present utility model preferred, IGBT assembly and the capacitance component of described each power model is positioned at the same side of corresponding stack bus bar.

Above-mentioned setting of the present utility model then is conducive to make the volume of power model group more compact, is conducive to reduce the volume of power model group.

As of the present utility model preferred, described three power models laterally distribute side by side; Each power model also comprises for the radiator to the IGBT assembly radiating; Wherein the radiator of a pair of adjacent power module distributes in opposite directions.

Above-mentioned setting, so that two adjacent power modules that radiator distributes in opposite directions can use one group of blower fan to dispel the heat simultaneously, two radiators in opposite directions just in time form one and are used for air-cooled air channel; When unsteady flow power needs two groups of power model groups, although the utility model needs three groups of blower fans to dispel the heat, though and prior art only needs two groups of blower fans, but because one group of blower fan needs three power models are dispelled the heat simultaneously simultaneously in the prior art, so its required heat radiation total amount is of the present utility model 150% approximately, simultaneously because stack bus bar area used in the prior art is 3 times of the present utility model approximately, so the air-cooled stroke of prior art is about 2 times of the present utility model; Therefore, compared to existing technology, the utlity model has higher radiating efficiency, simultaneously required fan power is less, and radiation energy consumption is lower, and simultaneously, the working temperature that more is conducive to compared to existing technology to reduce the IGBT assembly is lower.

As of the present utility model preferred, this kind great power conversion circuit plant capacity module group also comprises the module carrier that is fixedly connected with radiator, and described IGBT assembly is fixed in radiator.

Above-mentioned setting is so that the weight of IGBT assembly, radiator is all born by module carrier; The weight of IGBT assembly is not to be born by stack bus bar, thereby reduces the heavy burden of stack bus bar, in long-term the use, avoids the deformation of stack bus bar, thereby improves the useful life of stack bus bar.

As of the present utility model preferred, this kind great power conversion circuit plant capacity module group also comprises and is fixed in the capacitance bracket module carrier bottom and that be used for being fixedly connected with capacitance component.

Above-mentioned setting so that the weight of capacitance component marries again on the module carrier by capacitance bracket, rather than is born by stack bus bar, thereby further reduce the heavy burden of stack bus bar, in long-term the use, further avoid the deformation of stack bus bar, thereby improve the useful life of stack bus bar.

In sum, the utlity model has following beneficial effect:

1, three power models independently arrange than three power models in the prior art and concentrate on the form that a stack bus bar vertically arranges, the carrying of being more convenient for, and assembling particularly is convenient to keep in repair and safeguard;

2, the power of the blower fan of the required heat radiation of the utility model is lower, therefore, is conducive to improve the unsteady flow power of power model group;

3, the power of the blower fan of the required heat radiation of the utility model is lower, and therefore, the noise of blower fan is also less;

4, the utlity model has preferably radiating effect, thereby be conducive to reduce the working temperature of IGBT assembly, and then be conducive to improve inversion efficiency;

5, the utility model compact conformation, volume is little, is conducive to improve space availability ratio.

Description of drawings

Fig. 1 is the example structure schematic diagram;

Fig. 2 is embodiment power model structural representation.

Among the figure, 1, stack bus bar, 2, the IGBT assembly, 3, capacitance component, 4, radiator, 5, module carrier, 6, capacitance bracket, 7, cooling fan, 8, power model, 9, cover plate.

Embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail.

This specific embodiment only is to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification, but as long as all are subject to the protection of Patent Law in claim scope of the present utility model.

Embodiment: a kind of great power conversion circuit plant capacity module group, as shown in Figure 1, have two groups of power model groups and three groups of cooling fans 7, each power model group has three power models 8, each power model 8 is realized the unsteady flow of a phase place, is respectively A phase, B phase, C phase.

The structure of power model 8 as shown in Figure 2, comprise module carrier 5, be fixed in radiator 4 on the module carrier 5, be fixed in module carrier 5 bottoms capacitance bracket 6, be fixed in radiator 4 IGBT assembly 2, be fixed in capacitance bracket 6 capacitance component 3, connect IGBT assembly 2 and capacitance component 3 stack bus bar 1, be fixed in the cover plate 9 of module carrier 5; IGBT assembly 2 is positioned at capacitance component 3 tops, and IGBT assembly 2 and capacitance component 3 all are positioned at the same side of corresponding stack bus bar 1; Radiator 4 is used for IGBT assembly 2 is dispelled the heat.

Referring to Fig. 1-2, six power models 8 laterally distribute side by side, are divided into three pairs of adjacent power modules 8, and the radiator 4 of every pair of power model 8 distributes in opposite directions, form air-cooled air channel 71 between this radiator that distributes in opposite directions 4 thereby make, be provided with one group of cooling fan 7 for each air-cooled air channel 71.

Claims

1. a great power conversion circuit plant capacity module group comprises three power models that each is used for realizing a phase place unsteady flow, it is characterized in that each power model has independent stack bus bar (1).

2. a kind of great power conversion circuit plant capacity module group according to claim 1 is characterized in that, each power model comprises the IGBT assembly (2) that is positioned at corresponding stack bus bar (1) top, the capacitance component (3) that is positioned at stack bus bar (1) bottom.

3. a kind of great power conversion circuit plant capacity module group according to claim 2 is characterized in that, the IGBT assembly (2) of described each power model and capacitance component (3) are positioned at the same side of corresponding stack bus bar (1).

4. according to claim 2 or 3 described a kind of great power conversion circuit plant capacity module groups, it is characterized in that described three power models laterally distribute side by side; Each power model also comprises for the radiator (4) to IGBT assembly (2) heat radiation; Wherein the radiator of a pair of adjacent power module (4) distributes in opposite directions.

5. a kind of great power conversion circuit plant capacity module group according to claim 4, it is characterized in that, this kind great power conversion circuit plant capacity module group also comprises the module carrier (5) that is fixedly connected with radiator (4), and described IGBT assembly is fixed in radiator (4).

6. a kind of great power conversion circuit plant capacity module group according to claim 5, it is characterized in that this kind great power conversion circuit plant capacity module group also comprises and is fixed in capacitance bracket (6) module carrier (5) bottom and that be used for being fixedly connected with capacitance component (3).