CN201839221U

CN201839221U - IGBT (Insulated Gate Bipolar Transistor) high-power inversion module group

Info

Publication number: CN201839221U
Application number: CN201020560313XU
Authority: CN
Inventors: 耿传勇; 曾兆刚
Original assignee: SHANDONG BOS ENERGY TECHNOLOGY Co Ltd
Current assignee: SHANDONG BOS ENERGY TECHNOLOGY CO., LTD.
Priority date: 2010-10-14
Filing date: 2010-10-14
Publication date: 2011-05-18
Anticipated expiration: 2020-10-14

Abstract

The utility model discloses an IGBT (Insulated Gate Bipolar Transistor) high-power inversion module group which comprises a heat radiation device, wherein an IGBT module, a voltage-sharing resistor and a fixed insulation post are mounted on the heat radiation device, an absorption capacitor is mounted on the IGBT module, a lower copper plate is mounted on the fixed insulation post, a first insulation board is mounted on the lower copper plate, a middle copper plate is mounted on the first insulation board, a second insulation board is mounted on the middle copper plate, an upper copper plate is mounted on the second insulation board, an electrolytic capacitor is mounted on the upper copper plate, an electrolytic capacitor fixing plate is mounted on the electrolytic capacitor, and the electrolytic capacitor fixing plate is connected with the electrolytic capacitor by an electrolytic capacitor bolt; the lower copper plate is connected with the IGBT module; and a normally-open temperature control switch and a normally-closed temperature control switch are mounted on the heat radiation device. The IGBT high-power inversion module group adopts multiple new technologies to break through the key heat radiation technology of the high-power inversion module group and the drive protection technology of a power module, therefore the quality and operational reliability of products are improved, and the service life of the system is prolonged.

Description

IGBT high power contravariant module group

Technical field

The utility model relates to a kind of IGBT high power contravariant module group.

Background technology

IGBT module group is widely used in the converter system, as fields such as alternating current machine, frequency converter, Switching Power Supply, lighting circuit, traction transmissions, domestic IGBT high power module group mostly is to adopt intelligent IPM at present, this knot need take up room bigger, and weight is heavier relatively, and the installation and the maintenance of element are made troubles.Traditional IGBT high power module group lead-in inductance is higher, and due to voltage spikes is bigger to the infringement of components and parts, particularly easily to valuable element IGBT module infringement, makes the module group life-span shorter.IGBT high power module group is worked under the adverse circumstances of high temperature humidity sometimes, and this requirement to heat abstractor is very high, how to solve high-power, the heat transfer of big density of heat flow rate, heat dissipation problem is still a difficult problem.

The utility model content

The purpose of this utility model has provided a kind of IGBT high power contravariant module group, has characteristics such as little, the convenient and good heat dissipation effect of erection space.

The utility model is achieved through the following technical solutions: IGBT high power contravariant module group, comprise heat abstractor, the IGBT module is installed on the heat abstractor, grading resistor and fixed insulation post, install on the IGBT module and absorb electric capacity, copper coin down is installed on the fixed insulation post, first insulation board is installed on the following copper coin, copper coin in installing on first insulation board, on the middle copper coin second insulation board is installed, install copper coin on second insulation board, on the last copper coin electrochemical capacitor is installed, the electrochemical capacitor fixed head is installed on the electrochemical capacitor, the electrochemical capacitor fixed head is connected with electrochemical capacitor by the electrochemical capacitor bolt; Following copper coin is connected with the IGBT module; Install on the heat abstractor and often drive temperature detect switch (TDS) and normally closed temperature detect switch (TDS).

In order further to realize the purpose of this utility model: heat abstractor is connected and composed by electrochemical capacitor mounting panel, heating panel and radiating shell, and IGBT module, grading resistor and fixed insulation post are installed on the electrochemical capacitor mounting panel; Electrochemical capacitor mounting panel installed inside heat pipe is installed radiating shell on the electrochemical capacitor mounting panel, and first fan shroud is installed on the radiating shell, and first blower fan is installed in first fan shroud; One side of radiating shell is installed second fan shroud, and second blower fan is installed in second fan shroud; First fan shroud and second fan shroud communicate with the inner chamber of radiating shell respectively; The evaporation section of heat pipe is connected with the electrochemical capacitor mounting panel, and the condensation segment of heat pipe is near second blower fan.Described heating panel both sides respectively are provided with a rotating shaft, and heating panel flexibly connects by rotating shaft and radiating shell; Connector is installed in the rotating shaft of one side, and connecting rod is installed on the connector, offers the strip location hole on the connecting rod; Fairlead is installed on the radiating shell, adjusting rod is installed in the fairlead, the top of adjusting rod is provided with tooth bar, installing and locating axle on the adjusting rod, locating shaft cooperates with location hole, and motor and fixed mount are installed in the radiating shell top, gear is installed, the wheel and rack engagement on the fixed mount; Motor is connected with gear by driving-belt.The IGBT driver element is installed on the electrochemical capacitor mounting panel, and described IGBT driver element is recommended pipe by Switching Power Supply, M57962AL driver module, D44H11D45H11 and is formed.

Good effect of the present utility model is: the utility model has adopted multinomial new technology; breakthrough has solved the heat radiation key technology of high power contravariant module group and the driving resist technology of power model; the quality and the operational reliability of product can be improved, the useful life of system can be prolonged.The utlity model has compact conformation, low cost of manufacture and advantage such as easy to install simultaneously.

Description of drawings

Fig. 1 is a structural representation of the present utility model; The left TV structure schematic diagram of Fig. 2 view 1; Fig. 3 is the local structure for amplifying schematic diagram of the I of Fig. 1; Fig. 4 is that the A of Fig. 3 is to the TV structure schematic diagram; Fig. 5 is the local structure for amplifying schematic diagram of the II of Fig. 2; Fig. 6 is the local structure for amplifying schematic diagram of the III of Fig. 2.

Reference numeral: in 1 electrochemical capacitor installing plate, 2 equalizing resistances, 3 heat sinks, 4 radiating shells, 5 first blower fans, 6 second blower fans 7 on the copper coin 8 copper coin 9 fixed insulation posts 10 often drive 17 times copper coins of temperature conditioning unit 11 normally closed temperature conditioning unit 12IGBT module 13 Absorption Capacitances, 14 electrochemical capacitor set bolt 15 electrochemical capacitor fixed heads, 16 electrochemical capacitors, 18 first insulation boards, 19 second insulation board 20IGBT driver elements, 21 first fan shrouds, 22 second fan shrouds, 23 rotating shafts, 24 tooth bars, 25 gears, 26 adjusting rods, 27 connecting rods, 28 connectors, 29 driving-belts, 30 motors, 31 locating holes 32 and connect hubs 33 fixed mounts 34 locating shafts 35 fairleads 36 connecting rods 37 radiator coil tubes 38 fins 39 first ports 40 second ports.

Embodiment

IGBT high power contravariant module group described in the utility model, comprise heat abstractor, IGBT module 12 is installed on the heat abstractor, grading resistor 2 and fixed insulation post 9, install on the IGBT module 12 and absorb electric capacity 13, copper coin 17 down is installed on the fixed insulation post 9, first insulation board 18 is installed on the following copper coin 17, copper coin 7 in installing on first insulation board 18, on the middle copper coin 7 second insulation board 19 is installed, install copper coin 8 on second insulation board 19, electrochemical capacitor 16 is installed on the last copper coin 8, electrochemical capacitor fixed head 15 is installed on the electrochemical capacitor 16, electrochemical capacitor fixed head 15 is connected with electrochemical capacitor 16 by electrochemical capacitor bolt 14; Following copper coin 17 is connected with IGBT module 12; Install on the heat abstractor and often drive temperature detect switch (TDS) 10 and normally closed temperature detect switch (TDS) 11.This module group adopts the IGBT inversion transformation technique, the reliability height, and volume is little, saves manufactured materials significantly, and is in light weight, conveniently moving; Automatically coupling best techniques parameter has improved Electromagnetic Compatibility.This module group is that the electrolysis positive and negative polarities are encapsulated with two-layer copper coin and wrapped with insulation; make the parts mutually insulated; on the IGBT module that tiles then; the IGBT module is installed on the heat abstractor; promptly reduced lead-in inductance by this kind structural design; saved installing space again; the characteristics that have compact conformation simultaneously; can realize maximizing space utilization; reduce the infringement of due to voltage spikes to components and parts; realization is to valuable parts---IGBT, i.e. the protection of insulated gate bipolar transistor has prolonged useful life of electronic devices and components; be convenient to product after-sales service and replacing simultaneously; strengthened the reliability of system, and made capacitance profile more even, more compact structure; succinctly; attractive in appearance.

For improving the heat exchange effect, guarantee that IGBT module 12 can be in long-term work under the constant temperature, to shown in Figure 4, described heat abstractor is connected and composed by electrochemical capacitor mounting panel 1, heating panel 3 and radiating shell 4 as Fig. 2, and IGBT module 12, grading resistor 2 and fixed insulation post 9 are installed on the electrochemical capacitor mounting panel 1; Electrochemical capacitor mounting panel 1 installed inside heat pipe is installed radiating shell 4 on the electrochemical capacitor mounting panel 1, install on the radiating shell 4 in first fan shroud, 21, the first fan shrouds 21 first blower fan 5 is installed; One side of radiating shell 4 is installed in second fan shroud, 22, the second fan shrouds 22 second blower fan 6 is installed; First fan shroud 21 and second fan shroud 22 communicate with the inner chamber of radiating shell 4 respectively; The evaporation section of heat pipe is connected with electrochemical capacitor mounting panel 1, and the condensation segment of heat pipe is near second blower fan 6.Described heat pipe can be substituted by radiator coil tube 37, and fin 38 is installed on the radiator coil tube 37, and radiator coil tube 37 also can play the effect of inhaling 12 heat radiations of IGBT module.Install on the radiating shell 4 and often drive temperature detect switch (TDS) 10 and normally closed temperature detect switch (TDS) 11; Offer first port 39 and second port 40 on the last copper coin 8, often drive temperature detect switch (TDS) 10 and be positioned at first port 39, normally closed temperature detect switch (TDS) 11 is positioned at second port 40.

In the IGBT high power contravariant module group described in the utility model, being cooperated with first blower fan 5 and second blower fan 6 by heat pipe is 12 heat radiations of IGBT module; Utilize in the heat pipe heat-transfer fluid to undergo phase transition and absorb the heat that IGBT module 12 produces, and the heat that absorbs is transferred to condensation segment by the evaporation section of heat pipe, finally by the condensation segment discharges heat.First blower fan 5 and second blower fan 6 do the time spent, quicken the air flows on heat pipe condenser section surface, improve heat exchange efficiency.The intraductal heat transfer fluid of described heat pipe is under high vacuum condition, absorb outside heat at fire end, the intraductal heat transfer fluid becomes gaseous state by liquid state, under the steam pressure effect, flow to condensation end, again by discharging latent heat of vaporization liquefy, rely on gravity or capillary suction force to get back to fire end again, finish a duty cycle.So move in circles, constantly heat is passed to radiating end by the heating end, the temperature at integral heat pipe two ends is tended to balance.This phase transformation circulation does not consume other energy, heat transfer efficiency is high, and good gold, silver, copper, aluminium etc. exceed tens to hundred times than conducting heat.Therefore, this technology is a kind of passive techniques of efficient, energy-saving and environmental protection type.The invertibity of very high thermal conductivity, good isothermal, density of heat flow rate changeability, direction of heat flow, thermal diode and thermal switch performance, thermostatic characteristics.Just, therefore, the rotating speed of first blower fan 5 and second blower fan 6 can be reduced, thereby the noise of heat radiation energy consumption and blower fan can be reduced owing to the heat transfer efficiency height of heat pipe.Electrochemical capacitor mounting panel 1 is by adopting the high material of heat conduction efficiency to make.

In order to realize, when quick heat radiating, can improve ventilation quantity, thereby improve radiating effect, under normal operating conditions, prevent that extraneous dirt from being entered in the radiating shell 4 by heating panel 3, damages inner electric elements.To shown in Figure 4, described heating panel 3 both sides respectively are provided with a rotating shaft 23 as Fig. 2, and heating panel 3 flexibly connects by rotating shaft 23 and radiating shell 4, and promptly heating panel 3 can rotate relative to radiating shell 4 by rotating shaft 23; Connector 28 is installed in the rotating shaft 23 of one side, and connecting rod 27 is installed on the connector 28, offers strip location hole 31 on the connecting rod 27; Fairlead 35 is installed on the radiating shell 4, adjusting rod 26 is installed in the fairlead 35,35 pairs of adjusting rods 26 of fairlead play the guiding role, and the top of adjusting rod 26 is provided with tooth bar 24, installing and locating axle 34 on the adjusting rod 26, as shown in Figure 4, locating shaft 34 is positioned at location hole 31, and promptly locating shaft 34 cooperates with location hole 31, and motor 30 and fixed mount 33 are installed in radiating shell 4 tops, gear 25 is installed, gear 25 and tooth bar 24 engagements on the fixed mount 33; Motor 30 is connected with gear 25 by driving-belt 29.When needs improve radiating efficiency, motor 30 rotates by driving-belt 29 driven gears 25, gear 25 and tooth bar 24 engagements, promote or reduction adjusting rod 26, adjusting rod 26 drives connecting rods 27 swings by locating shaft 34, and connecting rod 27 drives heating panel 3 by rotating shaft 23 and rotates relative to radiating shell 4, thereby heating panel 3 is opened, accelerate cross-ventilation, improve rate of venting, reach heat radiation efficiently.For easy for installation, fairlead 35 can be connected with radiating shell 4 by connecting rod 36.Described driving-belt 29 can be the sprocket wheel link chain mechanism, and a sprocket wheel promptly is installed on motor 30 output shafts, and the axle of gear 25 is gone up another sprocket wheel is installed, and between two sprocket wheels chain is installed.To shown in Figure 4, for making things convenient for heating panel 3 or closure, heating panel 3 can be made into strip, the from top to bottom parallel installation of a plurality of heating panels 3 as Fig. 2; A connecting rod 27 all is installed on each heating panel 3, is all offered location hole 31 on the connecting rod 27; The locating shaft 34 that also corresponding installation quantity equates with connecting rod 27 on the adjusting rod 26, connecting rod 27 and locating shaft 34 be corresponding matching one by one.When motor 30 drive adjusting rods 26 moved up or down, adjusting rod 26 can drive 27 swings of all connecting rods simultaneously, thereby realized that all heating panels 3 are opened synchronously or closure.

IGBT driver element 20 is installed on the described electrochemical capacitor mounting panel 1, and described IGBT driver element 20 is recommended pipe by Switching Power Supply, M57962AL driver module, D44H11D45H11 and is formed; Wherein the M57962AL driver module is made up of amplification buffer circuit, timing reset circuit, over-current detection circuit, overcurrent output circuit; photoelectrical coupler, current foldback circuit, the overcurrent protection lead-out terminal of 2500V high-isolating are housed in driver module inside; has the closure short-circuit protection function; M57962AL is a kind of high-speed driving circuit, and drive signal time-delay TPH and TPLH are 1.5 μ s to the maximum.After electric current is connected, whether at first self check detects IGBT and transships or short circuit, if overload or short circuit, the collector potential of IGBT raises, the electric current that flows into testing circuit through external diode increases, gate turn-off circuit operation, the gate drive signal that cuts off IGBT, while output overloading short-circuit signal, when IGBT just often, input signal is behind the M57962AL drive circuit, again through recommending pipe D44H11 and D45H11 power amplification rear drive IGBT.On structural design, Switching Power Supply, M57962AL driver module, D44H11D45H11 are recommended pipe and combine, can save greater room, load capacity is stronger, can drive the above high-power IGBT of 1800A, reduces cost 50% than the external like product of simple buying.This structure has short-circuit protection, falls grid voltage, soft turn-off characteristic slowly simultaneously.

The utility model not technology contents of detailed description is known technology.

Claims

1.IGBT high power contravariant module group, it is characterized in that: comprise heat abstractor, IGBT module (12) is installed on the heat abstractor, grading resistor (2) and fixed insulation post (9), IGBT module (12) goes up to install and absorbs electric capacity (13), fixed insulation post (9) is gone up copper coin (17) down is installed, following copper coin (17) is gone up first insulation board (18) is installed, copper coin (7) during first insulation board (18) is gone up and installed, middle copper coin (7) is gone up second insulation board (19) is installed, install copper coin (8) on second insulation board (19), last copper coin (8) is gone up electrochemical capacitor (16) is installed, electrochemical capacitor (16) is gone up electrochemical capacitor fixed head (15) is installed, and electrochemical capacitor fixed head (15) is connected with electrochemical capacitor (16) by electrochemical capacitor bolt (14); Following copper coin (17) is connected with IGBT module (12); Install on the heat abstractor and often drive temperature detect switch (TDS) (10) and normally closed temperature detect switch (TDS) (11).

2. IGBT high power contravariant module group according to claim 1, it is characterized in that: heat abstractor is connected and composed by electrochemical capacitor mounting panel (1), heating panel (3) and radiating shell (4), and electrochemical capacitor mounting panel (1) is gone up IGBT module (12), grading resistor (2) and fixed insulation post (9) are installed; Electrochemical capacitor mounting panel (1) installed inside heat pipe, electrochemical capacitor mounting panel (1) are gone up radiating shell (4) are installed, and radiating shell (4) is gone up first fan shroud (21) is installed, and first blower fan (5) is installed in first fan shroud (21); One side of radiating shell (4) is installed second fan shroud (22), and second blower fan (6) is installed in second fan shroud (22); First fan shroud (21) and second fan shroud (22) communicate with the inner chamber of radiating shell (4) respectively; The evaporation section of heat pipe is connected with electrochemical capacitor mounting panel (1), and the condensation segment of heat pipe is near second blower fan (6).

3. IGBT high power contravariant module group according to claim 2 is characterized in that: described heating panel (3) both sides respectively are provided with a rotating shaft (23), and heating panel (3) flexibly connects by rotating shaft (23) and radiating shell (4); Connector (28) is installed in the rotating shaft of one side (23), and connector (28) is gone up connecting rod (27) is installed, and offers strip location hole (31) on the connecting rod (27); Radiating shell (4) is gone up fairlead (35) is installed, adjusting rod (26) is installed in the fairlead (35), the top of adjusting rod (26) is provided with tooth bar (24), adjusting rod (26) is gone up installing and locating axle (34), locating shaft (34) cooperates with location hole (31), motor (30) and fixed mount (33) are installed in radiating shell (4) top, and fixed mount (33) is gone up gear (25) is installed, gear (25) and tooth bar (24) engagement; Motor (30) is connected with gear (25) by driving-belt (29).

4. IGBT high power contravariant module group according to claim 2, it is characterized in that: electrochemical capacitor mounting panel (1) is gone up IGBT driver element (20) is installed, and described IGBT driver element (20) is recommended pipe by Switching Power Supply, M57962AL driver module, D44H11D45H11 and formed.