CN207200664U - IGBT power module unit and solar inverter - Google Patents

Abstract

The utility model provides a kind of IGBT power module unit and solar inverter, is related to the technical field of semiconductor equipment.IGBT power module unit includes liquid cold heat exchanger, the first IGBT (PCC) powers and the 2nd IGBT (PCC) powers；The two sides of first IGBT (PCC) powers and the 2nd IGBT (PCC) powers respectively with liquid cold heat exchanger is connected；First IGBT module with liquid cold heat exchanger while be connected, first IGBT driving board is connected with the another side of the first IGBT module, the one side of first composite bus bar is connected with the another side of the first IGBT module, and be set up in parallel with the first IGBT driving board, the another side of the first composite bus bar is connected with the first noninductive Absorption Capacitance；The structure of the 2nd IGBT (PCC) powers is identical with the structure of the first IGBT (PCC) powers.Solve in the prior art, the undesirable technical problem of DC filter capacitor radiating effect.IGBT (PCC) powers of the present utility model are directly connected with liquid cold heat exchanger, improve the service life of (PCC) power.

Description

IGBT power module unit and solar inverter

Technical field

The technical field of semiconductor equipment is the utility model is related to, more particularly, to a kind of IGBT power module unit and too Positive energy inverter.

Background technology

With the continuous development of global economy society, the sustainable growth of energy-consuming, traditional energy is fewer and fewer, uses The cost of traditional energy is also constantly rising, using caused by traditional energy the problem of environmental pollution it is also increasingly severe, Therefore, very big inconvenience is brought using the energy in being lived to people；Generated electricity using clean energy resource such as solar energy and wind energy, It is increasingly becoming a kind of trend.Solar photovoltaic generation system is directly by absorbing solar energy, utilizes semi-conductor electronic device Photovoltaic effect, solar energy is directly translated into a kind of technology of electric energy；And wind power generation is directly to convert the kinetic energy of wind For electric energy, due to there is safe and reliable, noiseless, free of contamination advantage using solar energy, using wind power generation environmental protection, and can produce Raw huge wind energy, therefore, is increasingly paid attention to using solar power generation and wind power generation by country.

Currently, with the fast development of solar power generation and wind power generation, to the work(of the electronic device inside generating equipment The requirement of rate grade and power density also more and more higher.Converter is being controlled as the executive component in generating equipment internal circuit Important effect is occupied in the break-make of circuit processed and the conversion of electric current.And with IGBT (Insulated Gate Bipolar Transistor), insulated gate bipolar transistor is critical component of the power cell of core component as current transformer, due to making With the particularity of environment, it is desirable to which the compact-sized, easy to maintenance of the part, power density are high, and therefore, power cell is often designed The separate unit perfect into One function.

But there is following defect in above-mentioned existing power cell in structure：The electrolysis electricity then needed using electrochemical capacitor The substantial amounts of appearance, cause the huge structure of power model loose；Using thin-film capacitor due to the volume and weight of thin-film capacitor Larger, existing IGBT module, which is structurally difficult, is installed together DC filtering thin-film capacitor with IGBT device, causes straight Stray inductance is very big between stream filtering thin-film capacitor and IGBT elements, easily produces excessive DC ripple electric current, filters direct current The overload damage of ripple thin-film capacitor.And because the power density of present power model is very high, it is difficult when using air-cooled design Meet the cooling requirements of IGBT and DC filter capacitor simultaneously, so as to cause DC filter capacitor radiating effect undesirable, cause Its service life reduction, so as to influence the use of whole power cell.

Utility model content

The purpose of this utility model is to provide a kind of IGBT power module unit, to solve present in prior art, The power density of power model is very high, is difficult to meet dissipating for IGBT and DC filter capacitor simultaneously when using air-cooled design Heat request, so as to cause DC filter capacitor radiating effect undesirable, cause its service life reduction, so as to influence whole power cell The technical problem used.

The utility model additionally provides a kind of solar inverter, to solve present in prior art, IGBT power moulds Module unit radiating effect is undesirable, the low technical problem of service life.

A kind of IGBT power module unit provided by the utility model, including liquid cold heat exchanger, the first IGBT (PCC) powers With the 2nd IGBT (PCC) powers；

The first IGBT (PCC) powers are connected with the one side of the liquid cold heat exchanger, the 2nd IGBT (PCC) powers with The another side connection of the liquid cold heat exchanger；

The first IGBT (PCC) powers include the first IGBT module, the first IGBT driving board, the first composite bus bar and the One noninductive Absorption Capacitance；First IGBT module with the liquid cold heat exchanger while be connected, the first IGBT Driving plate is connected with the another side of first IGBT module, the one side of first composite bus bar and first IGBT module Another side connection, and be set up in parallel with first IGBT driving board, the another side of first composite bus bar and described the One noninductive Absorption Capacitance connection；The 2nd IGBT (PCC) powers are answered including the second IGBT module, the second IGBT driving board, second Close busbar and the second noninductive Absorption Capacitance；The one side of second IGBT module is connected with the another side of the liquid cold heat exchanger, Second IGBT driving board is connected with the another side of second IGBT module, the one side of second composite bus bar with it is described The another side connection of second IGBT module, and is set up in parallel with second IGBT driving board, second composite bus bar it is another Simultaneously it is connected with the described first noninductive Absorption Capacitance.

Further, the first IGBT (PCC) powers and the 2nd IGBT (PCC) powers are symmetricly set on the cold heat exchange of the liquid The two sides of device.

Further, the quantity of the described first noninductive Absorption Capacitance is multiple that multiple first noninductive Absorption Capacitances are equal Cloth is on the another side of first composite bus bar；

For the quantity of the second noninductive Absorption Capacitance to be multiple, multiple second noninductive Absorption Capacitances are distributed on described the On the another side of two composite bus bars.

Further, first composite bus bar is provided with the first cathode output end and the first cathode output end, and described first Composite bus bar is connected by first cathode output end and the first cathode output end with first IGBT module；

Second composite bus bar is provided with the second cathode output end and the second cathode output end, and second composite bus bar leads to Second cathode output end and the second cathode output end is crossed to be connected with second IGBT module.

Further, first cathode output end and the first cathode output end is corresponding multipair, and described the One cathode output end and the first cathode output end are concordantly set；

Second cathode output end and the second cathode output end is corresponding multipair, and second positive pole exports End and the second cathode output end are concordantly set.

Further, in addition to fixture；

The fixture includes horizontally disposed first support member, is vertically arranged the first connection sheet, horizontally disposed the Two support members, the second connection sheet being vertically arranged and horizontally disposed first connecting plate；

The one side of first support member is connected with body, the another side of first support member and first connecting plate One side be oppositely arranged, the another side of first connecting plate is connected with one end of the liquid cold heat exchanger, it is described first support One end of part and one end vertical connection of first connection sheet, the other end of first connection sheet and first connecting plate Side vertical connection；

The one side of second support member is connected with body, the another side of second support member and first connecting plate One side be oppositely arranged, one end of second support member and the other end of first support member are oppositely arranged, described second The other end of support member and one end vertical connection of second connection sheet, the other end of second connection sheet and described first The opposite side vertical connection of connecting plate, so that one end of the liquid cold heat exchanger is connected with the fixture.

Further, in addition to support base, the quantity of the support base is two；

The first supporting plate that the support base includes being vertically arranged, horizontally disposed second supporting plate and be obliquely installed the Two connecting plates；

First supporting plate and the second supporting plate vertical connection, the side of first supporting plate and described second The side of supporting plate is connected by second connecting plate；

First supporting plate of one support base is connected with the one side of the liquid cold heat exchanger, the second support of a support base Plate is connected with the side of one end of the fixture, and the first supporting plate of another support base is another with the liquid cold heat exchanger Face is connected, and the second supporting plate of a support base is connected with the opposite side of one end of the fixture, so that the cold heat exchange of the liquid Device is connected with the fixture.

Further, first support member is provided with the first mounting hole, the quantity of first mounting hole be it is multiple, it is more Individual first mounting hole is distributed on first support member；

Second support member is provided with the second mounting hole, the quantity of second mounting hole be it is multiple, multiple described the Two mounting holes are distributed on second support member.

Further, first connection sheet is provided with the first connecting hole, and second connection sheet is provided with the second connection Hole, so that the fixture is connected with body.

The utility model also provides a kind of solar inverter, including body and IGBT power module list as described above Member；

Installation position is provided with the body, the IGBT power module unit is arranged in installation position.

IGBT power module unit provided by the utility model, the first IGBT (PCC) powers are located at the cold heat exchange of the liquid The right flank of device, the 2nd IGBT (PCC) powers are located at the left surface of the liquid cold heat exchanger, and IGBT (PCC) powers is direct It is connected with the liquid cold heat exchanger, solves the problems, such as that DC filter capacitor radiating effect is undesirable, improve (PCC) power Service life；The left surface of first IGBT module is connected with the right flank of the liquid cold heat exchanger, and the first IGBT drives The left surface of dynamic plate is connected with the right flank of first IGBT module, the left surface of first composite bus bar and described first The right flank connection of IGBT module, and first composite bus bar is located at the rear side of first IGBT driving board, described first Noninductive Absorption Capacitance is located at the connection end of first IGBT module and the first composite bus bar, the first noninductive Absorption Capacitance Set, reduce the peak value of the power model of the first IGBT module, it is ensured that the security reliability of the first IGBT module；Described second The right flank of IGBT module is connected with the left surface of the liquid cold heat exchanger, the right flank of second IGBT driving board with it is described The left surface connection of second IGBT module, the right flank of second composite bus bar and the left surface of second IGBT module connect Connect, and second composite bus bar is located at the rear side of second IGBT driving board, the second noninductive Absorption Capacitance is located at institute The connection end of the second IGBT module and the second composite bus bar is stated, the setting of the second noninductive Absorption Capacitance, reduces the 2nd IGBT The peak value of the power model of module, it is ensured that the security reliability of the second IGBT module, both sides set IGBT power module so that IGBT power module it is compact-sized, and reduce IGBT shut-off when overvoltage impact, improve IGBT reliability, meet Gao Gong Rate grade, the design requirement of high power density so that equipment machine volume is smaller, and cost is lower, and installing/dismounting is more convenient, and improves Production efficiency.

Solar inverter provided by the utility model, IGBT power module unit are arranged in the installation position of body, made The compact-sized of solar inverter is obtained, radiating effect is preferable, extends the service life of solar inverter.

Brief description of the drawings

, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the structural representation one for the IGBT power module unit that the utility model embodiment provides；

Fig. 2 is the structural representation two for the IGBT power module unit that the utility model embodiment provides；

Fig. 3 is the idea figure for the IGBT power module unit that the utility model embodiment provides；

Fig. 4 is the structural representation of the fixture for the IGBT power module unit that the utility model embodiment provides；

Fig. 5 is the structural representation of the support base for the IGBT power module unit that the utility model embodiment provides.

Icon：11- liquid cold heat exchangers；The IGBT (PCC) powers of 12- the first；The IGBT (PCC) powers of 13- the 2nd；14- fixtures； 15- support bases；The IGBT modules of 121- first；The IGBT driving boards of 122- first；The composite bus bars of 123- first；The first noninductive suctions of 124- Receive electric capacity；The IGBT modules of 131- second；The IGBT driving boards of 132- second；The composite bus bars of 133- second；The second noninductive absorptions of 134- Electric capacity；The support members of 141- first；The connection sheets of 142- first；The support members of 143- second；The connection sheets of 144- second；145- first is connected Plate；The mounting holes of 146- first；The mounting holes of 147- second；The connecting holes of 148- first；The connecting holes of 149- second；151- first is supported Plate；The supporting plates of 152- second；The connecting plates of 153- second；The cathode output ends of 1231- first；The cathode output ends of 1232- first； The cathode output ends of 1331- second；The cathode output ends of 1332- second.

Embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality Novel protected scope.

, it is necessary to explanation in description of the present utility model, such as occur term " " center ", " on ", " under ", " left side ", The orientation or position relationship of the instruction such as " right side ", " vertical ", " level ", " interior ", " outer " are based on orientation shown in the drawings or position Relation, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply that signified device or element must There must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.This Outside, such as there is term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or implying relatively heavy The property wanted.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term such as occurs in description of the present utility model " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or one Connect body；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirect by intermediary It is connected, can is the connection of two element internals.For the ordinary skill in the art, on being understood with concrete condition State concrete meaning of the term in the utility model.

Fig. 1 is the structural representation one for the IGBT power module unit that the utility model embodiment provides；Fig. 2 is this practicality The structural representation two for the IGBT power module unit that new embodiment provides；Fig. 3 is what the utility model embodiment provided The idea figure of IGBT power module unit；Fig. 4 is the fixture for the IGBT power module unit that the utility model embodiment provides Structural representation；Fig. 5 is the structural representation of the support base for the IGBT power module unit that the utility model embodiment provides.

The utility model is supplied to a kind of IGBT power module unit, including liquid cold heat exchanger 11, the first IGBT power The IGBT (PCC) powers 13 of component 12 and the 2nd；

The first IGBT (PCC) powers 12 are connected with the one side of the liquid cold heat exchanger 11, the 2nd IGBT power packages Part 13 is connected with the another side of the liquid cold heat exchanger 11；

It is compound that the first IGBT (PCC) powers 12 include the first IGBT module 121, the first IGBT driving board 122, first 123 and first noninductive Absorption Capacitance 124 of busbar；The one side of first IGBT module 121 and the one of the liquid cold heat exchanger 11 Face is connected, and first IGBT driving board 122 is connected with the another side of first IGBT module 121, the first compound mother The one side of row 123 is connected with the another side of first IGBT module 121, and is set side by side with first IGBT driving board 122 Put, the another side of first composite bus bar 123 is connected with the described first noninductive Absorption Capacitance 124；The 2nd IGBT power Component 13 includes the second IGBT module 131, the second IGBT driving board 132, the second composite bus bar 133 and the second noninductive Absorption Capacitance 134；The one side of second IGBT module 131 is connected with the another side of the liquid cold heat exchanger 11, the 2nd IGBT drivings Plate 132 is connected with the another side of second IGBT module 131, the one side of second composite bus bar 133 and described second The another side connection of IGBT module 131, and be set up in parallel with second IGBT driving board 132, second composite bus bar 133 Another side be connected with the described second noninductive Absorption Capacitance 134.

As depicted in figs. 1 and 2, IGBT power module unit provided by the utility model, the first IGBT (PCC) powers 12 are located at the right flank of the liquid cold heat exchanger 11, and the 2nd IGBT (PCC) powers 13 are located at a left side for the liquid cold heat exchanger 11 Side, IGBT (PCC) powers are directly connected with the liquid cold heat exchanger 11, DC filter capacitor radiating effect is solved and pays no attention to The problem of thinking, improve the service life of (PCC) power；The left surface of first IGBT module 121 and the liquid cold heat exchanger 11 right flank connection, the left surface of first IGBT driving board 122 and the right flank of first IGBT module 121 connect Connect, the left surface of first composite bus bar 123 is connected with the right flank of first IGBT module 121, and described first is multiple The rear side that busbar 123 is located at first IGBT driving board 122 is closed, the first noninductive Absorption Capacitance 124 is located at described first The connection end of the composite bus bar 123 of IGBT module 121 and first, the setting of the first noninductive Absorption Capacitance 124, reduce by first The peak value of the power model of IGBT module 121, it is ensured that the security reliability of the first IGBT module 121；The 2nd IGBT moulds The right flank of block 131 is connected with the left surface of the liquid cold heat exchanger 11, the right flank of second IGBT driving board 132 and institute State the left surface connection of the second IGBT module 131, the right flank of second composite bus bar 133 and second IGBT module 131 left surface connection, and second composite bus bar 133 is located at the rear side of second IGBT driving board 132, described second Noninductive Absorption Capacitance 134 is located at the connection end of the composite bus bar 133 of the second IGBT module 131 and second, and described second is noninductive The setting of Absorption Capacitance 134, reduce the peak value of the power model of the second IGBT module 131, it is ensured that the second IGBT module 131 Security reliability, both sides set IGBT power module so that IGBT power module it is compact-sized, and reduce IGBT shut-off when mistake Pressure impact, improves IGBT reliability, meets high power level, the design requirement of high power density so that equipment complete machine Volume is smaller, and cost is lower, and installing/dismounting is more convenient, and improves production efficiency.

Further, it is cold with the 2nd IGBT (PCC) powers 13 to be symmetricly set on the liquid for the first IGBT (PCC) powers 12 The two sides of heat exchanger 11.

As depicted in figs. 1 and 2, the first IGBT (PCC) powers 12 and the 2nd IGBT (PCC) powers 13 are symmetricly set on institute State the two sides of liquid cold heat exchanger 11 so that the degree of heat radiation phase of the first IGBT (PCC) powers 12 and the 2nd IGBT (PCC) powers 13 Together, ensure the radiating of IGBT power module so that IGBT power module it is compact-sized, extend making for the IGBT power module Use the life-span.

Further, the quantity of the described first noninductive Absorption Capacitance 124 is multiple, multiple first noninductive Absorption Capacitances 124 are distributed on the another side of first composite bus bar 123；The quantity of the second noninductive Absorption Capacitance 134 is more to be multiple The individual second noninductive Absorption Capacitance 134 is distributed on the another side of second composite bus bar 133.

As depicted in figs. 1 and 2, multiple first noninductive Absorption Capacitances 124 are distributed on first composite bus bar 123 On right flank, the setting of multiple first noninductive Absorption Capacitances 124, the due to voltage spikes of the first IGBT (PCC) powers 12 is reduced Value, it is ensured that the work safety of the first IGBT (PCC) powers 12；Multiple second noninductive Absorption Capacitances 134 are distributed on described On the left surface of two composite bus bars 133, the setting of multiple second noninductive Absorption Capacitances 134, the 2nd IGBT power is reduced The voltage spikes of component 13, it is ensured that the work safety of the 2nd IGBT (PCC) powers 13.

Further, first composite bus bar 123 is provided with the first cathode output end 1231 and the first cathode output end 1232, first composite bus bar 123 by the cathode output end 1232 of the first cathode output end 1231 and first with it is described First IGBT module 121 connects；Second composite bus bar 133 is provided with the second cathode output end 1331 and the second cathode output end 1332, second composite bus bar 133 by the cathode output end 1332 of the second cathode output end 1331 and second with it is described Second IGBT module 131 connects.

As shown in figure 3, first composite bus bar 123 is provided with the first cathode output end 1231 and the first cathode output end 1232, by the first cathode output end 1231 and the first cathode output end 1232, realize first composite bus bar 123 with it is described The connection of first IGBT module 121；Second composite bus bar 133 is provided with the second cathode output end 1331 and the second negative pole exports End 1332, by the second cathode output end 1331 and the second cathode output end 1332, realizes second composite bus bar 133 and institute State the connection of the second IGBT module 131.

Further, the cathode output end 1232 of the first cathode output end 1231 and first is corresponding multipair, and And the cathode output end 1232 of the first cathode output end 1231 and first is concordantly set；The He of second cathode output end 1331 Second cathode output end 1332 is corresponding multipair, and the cathode output end of second cathode output end 1331 and second 1332 concordant settings.

As shown in figure 3, the cathode output end 1232 of the first cathode output end 1231 and first is corresponding multipair, it is more The cathode output end 1232 of first cathode output end 1231 and first is concordantly set, ensures the first composite bus bar 123 and institute State the connection of the first IGBT module 121；The cathode output end 1332 of second cathode output end 1331 and second is corresponding Multipair, the multipair cathode output end 1332 of second cathode output end 1331 and second is concordantly set, and ensures the second composite bus bar 133 with the connection of second IGBT module 131.

Further, in addition to fixture 14；The fixture 14 includes horizontally disposed first support member 141, vertical The first connection sheet 142 for setting, horizontally disposed second support member 143, the second connection sheet 144 being vertically arranged and horizontally disposed The first connecting plate 145；The one side of first support member 141 is connected with body, the another side of first support member 141 with The one side of first connecting plate 145 is oppositely arranged, the another side of first connecting plate 145 and the liquid cold heat exchanger 11 One end connects, and one end of first support member 141 and one end vertical connection of first connection sheet 142, described first connects The side vertical connection of the other end of contact pin 142 and first connecting plate 145；The one side and machine of second support member 143 Body is connected, and the one side of the another side of second support member 143 and first connecting plate 145 is oppositely arranged, described second One end of support member 143 and the other end of first support member 141 are oppositely arranged, the other end of second support member 143 with One end vertical connection of second connection sheet 144, the other end of second connection sheet 144 and first connecting plate 145 Opposite side vertical connection so that one end of the liquid cold heat exchanger 11 is connected with the fixture 14.

As shown in figure 4, the bottom surface of horizontally disposed first support member 141 is connected with body, first connecting plate 145 The lower end with the liquid cold heat exchanger 11 is connected above, and the right-hand member of first support member 141 is connected with vertically disposed first The lower end vertical connection of piece 142, the upper end of first connection sheet 142 are connected with the Right vertical of first connecting plate 145, So that the right side of the fixture 14 is connected with body；The bottom surface of horizontally disposed second support member 143 is connected with body, vertically The left end of the right-hand member and first support member 141 of the second support member 143 set is oppositely arranged, second support member 143 Left end be connected with the lower end of vertically disposed second connection sheet 144, the upper end of second connection sheet 144 with it is horizontally disposed The left side connection of first connecting plate 145 so that the left side of the fixture 14 is connected with body, under the liquid cold heat exchanger 11 End is connected to above fixture 14 so that the liquid cold heat exchanger 11 is fixedly connected with body, ensures equipment connection structure Stability.

Further, in addition to support base 15, the quantity of support base 15 are two；The support base 15 includes setting vertically The first supporting plate 151, horizontally disposed second supporting plate 152 and the second connecting plate 153 being obliquely installed put；Described first Fagging 151 and the vertical connection of the second supporting plate 152, the side of first supporting plate 151 and second supporting plate 152 Side connected by second connecting plate 153；First supporting plate 151 of one support base 15 and the liquid cold heat exchanger 11 One side connection, the second supporting plate 152 of a support base 15 is connected with the side of one end of the fixture 14, and another is propped up First supporting plate 151 of support seat 15 is connected with the another side of the liquid cold heat exchanger 11, the second supporting plate of a support base 15 152 are connected with the opposite side of one end of the fixture 14, so that the liquid cold heat exchanger 11 is connected with the fixture 14.

Such as Fig. 2 and as shown in figure 5, vertically disposed first supporting plate 151 connects with horizontally disposed second supporting plate 152 Connect, the left surface of first supporting plate 151 is connected with the left surface of second supporting plate 152 by be obliquely installed second Plate 153 connects；The right side of first supporting plate 151 of left side support base 15 is connected with the left surface of the liquid cold heat exchanger 11, left The bottom surface of second supporting plate 152 of side support base 15 is connected with the front end in the left side of the fixture 14, the support base 15 on right side The left side of the first supporting plate 151 be connected with the right flank of the liquid cold heat exchanger 11, the second support of the support base 15 on right side The bottom surface of plate 152 is connected with the front end on the right side of the fixture 14, so that the liquid cold heat exchanger 11 and the fixture 14 Connection, the setting of the support base 15 so that the connection of the liquid cold heat exchanger 11 and fixture 14 is more firm, ensures equipment Connective stability it is strong.

It should be noted that the quantity of the support base 15 can be four, support base 15 described in two of which is located at institute The front end of fixture 14 is stated, two other described support base 15 is located at the rear end of the fixture 14 so that liquid cold heat exchanger 11 Connection with fixture 14 is more firm, ensures that the connective stability of equipment is strong.

Further, first support member 141 is provided with the first mounting hole 146, the quantity of first mounting hole 146 To be multiple, multiple first mounting holes 146 are distributed on first support member 141；Second support member 143 is provided with Second mounting hole 147, the quantity of second mounting hole 147 are multiple, and multiple second mounting holes 147 are distributed on described the On two support members 143.

As shown in figure 4, first support member 141 is provided with multiple the first uniform mounting holes 146 so that pin, spiral shell Nail or other parts that can play fixation pass through first mounting hole 146, and the right side of the fixture 14 is fixed； Second support member 143 is provided with multiple the second uniform mounting holes 147, screw or other can play the zero of fixation Part passes through second mounting hole 147, and the left side of the fixture 14 is fixed, fixture 14 is fixedly connected with body, more The setting of the individual mounting hole 147 of first mounting hole 146 and second so that the connective stability of fixture 14 and body is strong, increases The connective stability of oil (gas) filling device.

Further, first connection sheet 142 is provided with the first connecting hole 148, and second connection sheet 144 is provided with Second connecting hole 149, so that the fixture 14 is connected with body.

As described in Figure 4, first connection sheet 142 is provided with the first connecting hole 148 so that the right side of fixture 14 and machine Body stable connection, the second connection sheet 144 are provided with the second connecting hole 149 so that the left side of fixture 14 and body stable connection, So that the connection of fixture 14 and body is more stable, ensure that the connective stability of equipment is strong.

The utility model also provides a kind of solar inverter, including body and IGBT power module list as described above Member；Installation position is provided with the body, the IGBT power module unit is arranged in installation position.

Solar inverter provided by the utility model, IGBT power module unit are arranged in the installation position of body, made The compact-sized of solar inverter is obtained, radiating effect is preferable, extends the service life of solar inverter.

Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly The scope of each embodiment technical scheme of type.

Claims (10)

1. a kind of IGBT power module unit, it is characterised in that including liquid cold heat exchanger (11), the first IGBT (PCC) powers (12) With the 2nd IGBT (PCC) powers (13)；

The first IGBT (PCC) powers (12) are connected with the one side of the liquid cold heat exchanger (11), the 2nd IGBT power packages Part (13) is connected with the another side of the liquid cold heat exchanger (11)；

The first IGBT (PCC) powers (12) are answered including the first IGBT module (121), the first IGBT driving board (122), first Close busbar (123) and the first noninductive Absorption Capacitance (124)；The one side of first IGBT module (121) and the cold heat exchange of the liquid The one side connection of device (11), first IGBT driving board (122) are connected with the another side of first IGBT module (121), The one side of first composite bus bar (123) is connected with the another side of first IGBT module (121), and with described first IGBT driving board (122) is set up in parallel, another side and the described first noninductive Absorption Capacitance of first composite bus bar (123) (124) connect；The 2nd IGBT (PCC) powers (13) include the second IGBT module (131), the second IGBT driving board (132), Second composite bus bar (133) and the second noninductive Absorption Capacitance (134)；The one side of second IGBT module (131) and the liquid The another side connection of cold heat exchanger (11), second IGBT driving board (132) are another with second IGBT module (131) Face connects, and the one side of second composite bus bar (133) is connected with the another side of second IGBT module (131), and with institute State the second IGBT driving board (132) to be set up in parallel, another side and the described second noninductive absorption of second composite bus bar (133) Electric capacity (134) connects.

2. IGBT power module unit according to claim 1, it is characterised in that the first IGBT (PCC) powers (12) The two sides of the liquid cold heat exchanger (11) is symmetricly set on the 2nd IGBT (PCC) powers (13).

3. IGBT power module unit according to claim 2, it is characterised in that the first noninductive Absorption Capacitance (124) quantity is multiple, and multiple first noninductive Absorption Capacitances (124) are distributed on first composite bus bar (123) On another side；

The quantity of the second noninductive Absorption Capacitance (134) is multiple, and multiple second noninductive Absorption Capacitances (134) are distributed on On the another side of second composite bus bar (133).

4. IGBT power module unit according to claim 3, it is characterised in that first composite bus bar (123) sets There are the first cathode output end (1231) and the first cathode output end (1232), first composite bus bar (123) passes through described One cathode output end (1231) and the first cathode output end (1232) are connected with first IGBT module (121)；

Second composite bus bar (133) is provided with the second cathode output end (1331) and the second cathode output end (1332), described Second composite bus bar (133) passes through second cathode output end (1331) and the second cathode output end (1332) and described second IGBT module (131) connects.

5. IGBT power module unit according to claim 4, it is characterised in that first cathode output end (1231) With the first cathode output end (1232) to be corresponding multipair, and first cathode output end (1231) and the first negative pole are defeated Go out end (1232) concordantly to set；

Second cathode output end (1331) and the second cathode output end (1332) is corresponding multipair, and described second Cathode output end (1331) and the second cathode output end (1332) are concordantly set.

6. IGBT power module unit according to claim 5, it is characterised in that also including fixture (14)；

The fixture (14) includes horizontally disposed first support member (141), the first connection sheet (142) being vertically arranged, water Flat the second support member (143) set, the second connection sheet (144) being vertically arranged and horizontally disposed first connecting plate (145)；

The one side of first support member (141) is connected with body, the another side and described first of first support member (141) The one side of connecting plate (145) is oppositely arranged, the another side of first connecting plate (145) and the one of the liquid cold heat exchanger (11) End connection, one end of first support member (141) and one end vertical connection of first connection sheet (142), described first The other end of connection sheet (142) and the side vertical connection of first connecting plate (145)；

The one side of second support member (143) is connected with body, the another side and described first of second support member (143) The one side of connecting plate (145) is oppositely arranged, and one end of second support member (143) is another with first support member (141) One end is oppositely arranged, the other end of second support member (143) and one end vertical connection of second connection sheet (144), The other end of second connection sheet (144) and the opposite side vertical connection of first connecting plate (145), so that the liquid is cold One end of heat exchanger (11) is connected with the fixture (14).

7. IGBT power module unit according to claim 6, it is characterised in that also including support base (15), the branch The quantity for supportting seat (15) is two；

The first supporting plate (151) that the support base (15) includes being vertically arranged, horizontally disposed second supporting plate (152) and incline The second connecting plate (153) tiltedly set；

First supporting plate (151) and the second supporting plate (152) vertical connection, the side of first supporting plate (151) Face is connected with the side of second supporting plate (152) by second connecting plate (153)；

The first supporting plate (151) of one support base (15) is connected with the one side of the liquid cold heat exchanger (11), a support base (15) the second supporting plate (152) is connected with the side of one end of the fixture (14), and the first of another support base (15) Supporting plate (151) is connected with the another side of the liquid cold heat exchanger (11), the second supporting plate (152) of a support base (15) with The opposite side connection of one end of the fixture (14), so that the liquid cold heat exchanger (11) is connected with the fixture (14).

8. IGBT power module unit according to claim 6, it is characterised in that set on first support member (141) There is the first mounting hole (146), the quantity of first mounting hole (146) is multiple, and multiple first mounting holes (146) are uniform On first support member (141)；

Second support member (143) is provided with the second mounting hole (147), the quantity of second mounting hole (147) be it is multiple, Multiple second mounting holes (147) are distributed on second support member (143).

9. IGBT power module unit according to claim 6, it is characterised in that set on first connection sheet (142) There is the first connecting hole (148), second connection sheet (144) is provided with the second connecting hole (149), so that the fixture (14) It is connected with body.

10. a kind of solar inverter, it is characterised in that including body and IGBT as claimed in any one of claims 1-9 wherein Power model unit；

Installation position is provided with the body, the IGBT power module unit is arranged in installation position.