CN206472033U - A kind of frequency converter of independent ventiduct structure - Google Patents

Abstract

The utility model belongs to frequency changer technology and manufacture field, a kind of frequency converter of independent ventiduct structure is provided, including drain pan component and the skeleton being detachably connected on the drain pan component, radiator is connected with the skeleton, pcb board, (PCC) power and single tube IGBT modules, the skeleton is by the drain pan segmentation into multiple independent spaces, and the radiator is located in a single space, the pcb board, one in the (PCC) power and the single tube IGBT modules, two or three are located in a single space, fan component is also associated with the drain pan component, space where the fan component is connected with the space where the radiator；So design can solve existing frequency changer the problem of overall size and space are saved on the premise of can not ensureing air channel independence in protecting IGBT and high device.

Description

A kind of frequency converter of independent ventiduct structure

Technical field

The utility model belongs to frequency changer technology and manufacture field, more particularly to a kind of frequency conversion of independent ventiduct structure Device.

Background technology

Frequency converter (Variable-frequency Drive, VFD), also referred to as variable frequency drives or drive control device, or Translations Inverter.Frequency converter is one kind of adjustable-speed drive system, is to change ac motor work using variable-frequency driving technique Make the frequency and amplitude of voltage, smoothly to control ac motor speed and torque.Frequency converter is of wide application, from small-sized Household electrical appliances have application to large-scale mining site grinder and compressor.Energy efficiency can be obviously improved using frequency converter, therefore is obtained Increasingly it is widely applied, especially under the background of made in China 2025, frequency converter certainly will have more preferable development.

The application environment of frequency converter is generally relatively more severe, in the environment of moist, dust, and circuit board is vulnerable to corrosion or product The problems such as dirt causes short circuit, therefore protection circuit plate is an important indicator of frequency converter performance.The design in air channel and assembler Skill is key factor therein.

That key protection is needed in frequency converter is IGBT and high device (such as electric capacity).

In existing technical scheme, IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar Crystal) layout have two kinds：A kind of is the top surface that IGBT is attached to radiator, and a kind of is the side that IGBT is attached to radiator.Wherein When IGBT is attached to the top surface of radiator, there are following problem points：1st, fixed IGBT and rectifier bridge need to output screw hole on PCB, PCB area is reduced, covert increase PCB size, and then influence package size；2nd, IGBT and rectifier bridge, which are placed, concentrates, no Beneficial to complete machine radiating.And when IGBT is attached to side, how to accomplish that it is industry to isolate with the air channel where electric capacity grade height device Problem.

The layout of high device also has two schemes：One kind is that high device (such as electric capacity) is soldered to PCB top surfaces, and it is lower with modeling Glue is isolated with air channel.Such a mode protection effect preferably, can form independent ventiduct, but can increase the height (depth) of complete machine Size, waste of materials and space.

Another is that high device is placed on PCB bottom surfaces, and device is placed in air channel, isolated using blinker, and this mode is prevented Protect effect poor, it is impossible to reach and be completely independent air channel, still suffer from dust in more rugged environment or steam passes through external series gap Into on circuit board.

Utility model content

The purpose of this utility model is to provide a kind of frequency converter of independent ventiduct structure, it is intended to solve existing frequency converter Structure is the problem of overall size and space is saved on the premise of can not ensureing air channel independence in protecting IGBT and high device.

The utility model is so solved：A kind of frequency converter of independent ventiduct structure, including drain pan component and detachable It is connected on the skeleton on the drain pan component, the skeleton and is connected with radiator, pcb board, (PCC) power and single tube IGBT modules, the skeleton is by the drain pan segmentation into multiple independent spaces, and the radiator is located at a list In only space, the one, two or three in the pcb board, the (PCC) power and the single tube IGBT modules is located at one In individual single space, fan component is also associated with the drain pan component, the space where the fan component dissipates with described Space connection where hot device.

Further, the skeleton includes the first connecting plate and the second connecting plate being connected with each other, first connection Plate and the T-shaped connection of the second connecting plate, the first connecting plate lid are located on the drain pan component, and second connecting plate is vertical It is connected in the drain pan component and the drain pan component is divided into left chamber body and right chamber body.

Further, the second connecting plate two ends are outward extended with the first extension and the second extension respectively, described Correspondence first extension is provided with the first chute on the inwall of drain pan component, and correspondence second extension is slided provided with second Groove, the top of second connecting plate is also convexly equipped with connection boss, and the drain pan component bottom correspondence connection boss is provided with Connecting groove.

Further, the (PCC) power includes braking single tube, rectifier bridge and the electricity being connected on first connecting plate Hold part, the braking single tube and the rectifier bridge are arranged on first connecting plate on the face of the second connecting plate, the electricity Hold part and be arranged on first connecting plate just on the face of second connecting plate.

Further, the radiator and the capacitive element are located in the left chamber body and the right chamber body respectively, and institute Radiator is stated to be connected on second connecting plate.

Further, first connecting plate is provided with accommodating first bowl assembly for braking single tube and houses described whole The second bowl assembly of bridge is flowed, first bowl assembly and second bowl assembly are located at the top of the radiator.

Further, the pcb board is connected on first connecting plate, and the braking single tube and the rectifier bridge are located at The lower section of the pcb board, and the braking single tube and the rectifier bridge electrically connect the PCB plates.

Further, the single tube IGBT modules are connected to second connecting plate on the side of the radiator, The single tube IGBT modules may pass through the pin that first connecting plate is connected electrically on the pcb board including multiple.

Further, the radiator includes transverse slat and the riser being connected with the transverse slat, and is connected to the transverse slat Multiple radiating fins between the riser, multiple radiating fins are parallel to each other, and any radiating fin and institute It is 30 ° -35 ° to state the angle between transverse slat.

Further, the transverse slat connects first connecting plate, and the riser connects second connecting plate, and described Riser upper end also extends perpendicularly outward the correspondence positioning table on the positioning table for being easy to positioning, first connecting plate and is provided with fixed Position groove.

The frequency converter of independent ventiduct structure that the utility model is provided is relative to the technique effect that existing technology has： By by the setting of skeleton, it is ensured that multiple parts are located by connecting, and the skeleton by drain pan segmentation into many Individual independent space, is located at respectively while being connected to the radiator on skeleton, pcb board, (PCC) power and single tube IGBT modules In different spaces, and then it can ensure that the radiating subassembly connected with fan component is separated with other sealed parts of needs, this Sample is easy to the reasonable utilization in space in drain pan component.

Brief description of the drawings

Fig. 1 be the utility model embodiment provide frequency converter drain pan component in box body structural perspective.

Fig. 2 be the utility model embodiment provide frequency converter drain pan component in box body structure top view.

Fig. 3 be the utility model embodiment provide frequency converter in radiator structure chart.

Fig. 4 be the utility model embodiment provide frequency converter middle skeleton part in one direction on three-dimensional view.

Fig. 5 is the frequency converter middle skeleton part that provides of the utility model embodiment along the stereopsis on another direction Figure.

Fig. 6 is the left view for the frequency converter middle skeleton part that the utility model embodiment is provided.

Fig. 7 is the connection figure of radiator and skeleton in the assembly technology that the utility model embodiment is provided.

Fig. 8 is to continue toward skeleton on assembling in the assembly technology that the utility model embodiment is provided to brake single tube and rectification The connection figure of device.

Fig. 9 is the connection figure for continuing toward skeleton on assembling pcb board in the assembly technology that the utility model embodiment is provided.

Figure 10 is to continue toward skeleton on assembling single tube IGBT modules in the assembly technology that the utility model embodiment is provided Connection figure.

Figure 11 is to continue the connection of the wiring capacitance part toward on skeleton in the assembly technology that the utility model embodiment is provided Figure.

Figure 12 is the connection figure assembled skeleton and drain pan component in the assembly technology that the utility model embodiment is provided

Embodiment

In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain The utility model, is not used to limit the utility model.

It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another On one element or it is connected on another element.When an element is known as " being connected to " another element, it can To be directly to another element or be indirectly connected on another element.

It should also be noted that, the orientation term such as left and right, upper and lower in the utility model embodiment, is only relative each other Concept or using the normal operating condition of product as reference, and should not be regarded as restrictive.

Accompanying drawing 1 be refer to shown in Figure 12, there is provided a kind of frequency conversion of independent ventiduct structure in the utility model embodiment It is connected with device, including drain pan component 10 and the skeleton 30 being detachably connected on the drain pan component 10, the skeleton 30 scattered Hot device 20, pcb board 70, (PCC) power and single tube IGBT modules 80, the skeleton 30 be connected in drain pan component 10 after by the bottom Shell component 10 is divided into multiple independent spaces, and the radiator 20, the pcb board 70 and the (PCC) power and single tube IGBT Module 80 is located in different spaces, pcb board 70, (PCC) power and list that especially radiator 20 is not contacted with other with the external world Pipe IGBT modules 80 are located in different spaces, are also associated with fan component 108 in the drain pan component 10, the fan component 108 The space at place is connected with the space where the radiator 20；Namely the radiator 20 carries out pressure by fan component 108 and changed Heat, miscellaneous part carries out natural heat dissipation, and so design can ensure the independence of heat exchanging air duct, while the structure of of skeleton 30 itself Characteristic causes the space of drain pan component 10 rationally to utilize.

More than design independent ventiduct structure frequency converter, by by the setting of skeleton 30, it is ensured that multiple parts Be located by connecting, and drain pan component 10 is divided into multiple independent spaces by the skeleton 30, while being connected to skeleton 30 On radiator 20, pcb board 70, (PCC) power and single tube IGBT modules 80 be located at respectively in different spaces, and then can protect Demonstrate,prove the radiating subassembly connected with fan component 108 to separate with other sealed parts of needs, be so easy in drain pan component 10 empty Between reasonable utilization.

In the present embodiment, as depicted in figs. 1 and 2, the drain pan component 10 includes the box body 101 of upper end open, the box body Space is the first cavity 1011, the second cavity 1012 and the 3rd cavity 1013 by 30 points of skeleton in 101, wherein the first cavity 1011 be the connecting cavity of fan component 108, and second cavity 1012 is used to separate radiator 20 with other consuming parts, and And first cavity 1011 is connected with the second cavity 1012, the 3rd cavity 1013 is used for the larger part of size for connection, such as electricity Hold part 90 etc..

As shown in figs. 1 and 12, it is convexly equipped with the bottom wall of first cavity 1011 multiple for the fan component that is located by connecting 108 rocket header structure 1083, while the side wall of the first cavity 1011 is provided with the notch for being used for laying fan patchcord 1085, the positioning for realizing fan component 108 completely with stable fixation is additionally provided with the side wall of the first cavity 1011 in addition Muscle 1084, the fan electromotor 1081 and lid that the fan component 108 includes being connected in the first cavity 1011 is located at first cavity Fan cover 1082 on 1011 sections.

In addition, as shown in figure 1, being additionally provided with the cavity wall of second cavity 1012 and radiator 20 and fan component 108 The first heat dissipating grid 105 coordinated, the 3rd cavity 1013, which is provided with, is easy to the second of the high part natural heat dissipation such as capacitive element 90 Heat dissipating grid 106

Specifically, as shown in Figures 4 to 6, in the utility model embodiment, the skeleton 30 includes the be connected with each other One connecting plate 301 and the second connecting plate 302, the T-shaped connection of 301 and second connecting plate of the first connecting plate 302, wherein first Connecting plate 301 is in being horizontally disposed with, and second connecting plate 302 is in be vertically arranged, when the skeleton 30 is connected on drain pan component 10, First connecting plate 301 lid is located on the drain pan component 10, while second connecting plate 302 is connected to the drain pan component 10 vertically It is interior and be left chamber body and right chamber body, the second above-mentioned cavity 1012 of left chamber body correspondence, the right chamber body by 10 points of the drain pan component The 3rd above-mentioned cavity 1013 of correspondence.

In the present embodiment, first connecting plate 301 lid is located in the opening of box body 101, and first connecting plate 301 Be provided with fastener 303, on the wall of box body 101 of the box body 101 to should fastener 303 be provided with neck 107, pass through fastener 303 and the cooperation of neck 107 complete the connection of skeleton 30 and drain pan component 10.

Second connecting plate 302 is connected in box body 101 vertically, and forms the second cavity 1012 and the 3rd cavity 1013 One common cavity wall

In the utility model embodiment, as shown in figure 4, the two ends of the second connecting plate 302 are outward extended with first respectively The extension 3022 of extension 3021 and second, the extension 3022 of the first extension 3021 and second is both preferably along its correspondence End face extend perpendicularly outward, on the inwall of the drain pan component 10 to should the first extension 3021 be provided with the first chute 103, and To should the second extension 3022 be provided with the second chute 104, while being also convexly equipped with connection on the top of second connecting plate 302 Boss 3023, the top espespecially deviates from the end of the first connecting plate 301, and the bottom of drain pan component 10 is to that should connect boss 3023 Provided with connecting groove 102.

In the present embodiment, the interference fits of 3021 and first chute of the first extension 103, the He of the second extension 3022 The interference fits of second chute 104, the connection boss 3023 and the interference fits of connecting groove 102；By the mistake of above-mentioned several parts Cross cooperation so that the second cavity 1012 and the 3rd cavity 1013 are completely separated through the second connecting plate 302, and then avoid fan group Moisture and dust in air is blown into the 3rd cavity 1013 by part 108, it is achieved thereby that air channel is completely independent.

Specifically, as shown in figure 8, in the utility model embodiment, the (PCC) power includes being connected to first connection Braking single tube 40, rectifier bridge 50 and capacitive element 90 on plate 301, the braking single tube 40 and the rectifier bridge 50 are arranged on first company Fishplate bar 301 is on the face of the second connecting plate 302, and the capacitive element 90 is arranged on first connecting plate 301 just to second connection On the face of plate 302.

In the present embodiment, face of first connecting plate 301 just to the second connecting plate 302 is first back side, with first back of the body Face is corresponding positive for first, and the braking single tube 40 and the rectifier bridge 50 are connected on the first front, the company of the capacitive element 90 It is connected on first back side；And the corresponding radiator 20 is connected to the second cavity 1012, namely in left chamber body, the capacitive element 90 are connected in the 3rd cavity 1013, namely right chamber body.

In the present embodiment, as shown in figure 3, the radiator 20 preferably includes transverse slat 201 and riser 202, the He of transverse slat 201 The L-shaped connection of riser 202, and radiating fin 203, a plurality of radiating fin are additionally provided between the transverse slat 201 and riser 202 203 are parallel to each other, and the angle between any radiating fin 203 and transverse slat 201 is preferably excellent in 30 ° -35 °, the present embodiment Elect 32 ° as, so design is ensureing there are most fins between transverse slat 201 and riser 202, while cooling surface area is maximum, The problem of long mould internal stress brought of fin is big is avoided, facilitates the extrusion molding of radiator 20.

In the present embodiment, the riser 202 is fitted and connected on the second connecting plate 302, and the upper surface of transverse slat 201 is connected to On the lower surface of one connecting plate 301, and the upper end of riser 202 has also extended perpendicularly outward positioning table 204, first connecting plate On 301 to should positioning table 204 be provided with locating slot 3015, the positioning table 204 is set both to be filled as radiator 20 with skeleton 30 The positioning of timing, can avoid the wedge angle of transverse slat 201 and the transition position of riser 202 from deforming, ftracture in heat treatment again.

Specifically, as shown in figure 8, in the utility model embodiment, first connecting plate 301, which is provided with, houses the braking First bowl assembly 3011 of single tube 40 and the second bowl assembly 3012 for housing the rectifier bridge 50, first bowl assembly 3011 and this Two bowl assemblies 3012 are located at the top of the radiator 20.

In the present embodiment, as shown in figure 8, the braking single tube 40 includes single tube body 401 and is connected to single tube body 401 On the first pin 402, the quantity of the first pin 402 is preferably three, first bowl assembly 3011 include the first groove 30111 With the one end for being connected to the first groove 30111 and for protecting the first pin 402, while askew when preventing the first pin 402 from installing First protector 30112 of the electrical isolation tiltedly and between each phase of enhancing, the single tube body 401 passes through the first groove 30111 It is connected on the transverse slat 201 of radiator 20, at the same time, is additionally provided with the cell wall of first groove 30111 for tackling single tube The dimensional tolerance of body 401 brings the first spacer for installing loosening problem.

In the present embodiment, as shown in figure 8, the rectifier bridge 50 includes rectification body and is connected on rectification body 501 Second pin 502, the quantity of second pin 502 is preferably four, and second bowl assembly 3012 includes the second groove and connection In one end of the second groove and for protecting the second pin 502, while crooked when preventing the second pin 502 from installing and each phase of enhancing Second protector of the electrical isolation between position, the rectification body 501 is connected to the transverse slat 201 of radiator 20 by the second groove On, at the same time, it is additionally provided with the cell wall of second groove and brings installation loosening to ask for tackling the dimensional tolerance of rectification body 501 Second spacer of topic.

In the present embodiment, as shown in figure 8, being additionally provided with the first front of first connecting plate 301 for installing sense The special-shaped through hole 3013 of temperature probe 60 and it is connected on the hole wall of special-shaped through hole 3013 and for fixing the connecting line of temperature-sensing probe 60 Buckle 3014.

In the present embodiment, the pin 502 of the first pin 402 and second is straight up.

Specifically, as shown in figure 9, in the utility model embodiment, the pcb board 70 is connected to first connecting plate 301 On, the braking single tube 40 and the rectifier bridge 50 are positioned at the lower section of the pcb board 70, and the braking single tube 40 and the rectifier bridge 50 are electric Connect the pcb board 70.

In the present embodiment, the pcb board 70 is fixedly connected on the first connecting plate 301 by screw, and the pcb board 70 Provided with the first pore and the second pore that the first pin 402 and the second pin 502 are passed through is available for, first pin 402 is passed through It is welded on the electrical connection that braking single tube 40 and pcb board 70 is completed on pcb board 70 after first pore, second pin 502 is through the The electrical connection that rectifier bridge 50 and pcb board 70 are completed on pcb board 70 is welded on after two pores.

Specifically, as shown in Figure 10, in the utility model embodiment, single tube IGBT modules 80 are connected to second company Fishplate bar 302 is on the side of the radiator 20, and single tube IGBT modules 80 may pass through the electricity of first connecting plate 301 including multiple It is connected to the three-prong 8011 on the pcb board 70.

In the present embodiment, single tube IGBT modules 80 include multiple IGBT single tubes 801 and consolidate the IGBT single tubes 801 It is scheduled on the press strip part 802 on radiator 20, each IGBT single tubes 801 and is provided with three three-prongs 8011, and should The quantity of IGBT single tubes 801 is preferably six, namely the quantity of the three-prong 8011 is 18, multiple IGBT single tubes 801 laid out in parallel, namely 18 three-prongs 8011 are linearly set, to should three-prong 8011 on the pcb board 70 The 3rd pore is provided with, the three-prong 8011, which passes through to be welded on after the three-prong 8011 on pcb board 70, completes single tube IGBT The electrical connection of module 80 and pcb board 70.

In the present embodiment, it is provided with second connecting plate 302 and is easy to IGBT single tubes 801 to be connected to the perpendicular of radiator 20 Opening 3024 on plate 202, the three-prong 8011 by the locating slot 3015 that is set on the first connecting plate 301 through this first The 3rd pore is continued across after connecting plate 301.

In the present embodiment, as shown in figure 11, the capacitive element 90 includes capacitor board 901 and is connected to the following table of capacitor board 901 Multiple capacitor cells 902 on face, the upper surface of capacitor board 901 is provided with positive electrode boss 903 and negative electrode boss 904, should On first connecting plate 301 to should positive electrode boss 903 and negative electrode boss 904 provided with two vias 3016, the positive electrode is convex Platform 903 and negative electrode boss 904 after the via 3016 by being connected electrically on pcb board 70, and the capacitor board 901 is abutted and is connected to On first back side of the first connecting plate 301.

The utility model also provide it is a kind of be used for assemble the independent ventiduct structure frequency converter assembly technology, it include with Lower step：

S1, the radiator 20 is fixed on the skeleton 30；

In the present embodiment, the radiator 20 is fixed on the second of skeleton 30 by screw after corresponding with screw hole On connecting plate 302, and the position of correspondence braking single tube 40 connects silica gel cloth on the transverse slat 201 of radiator 20, while at this The heat conductive silica gel of radiating is strengthened in coating on silica gel cloth 2011.

S2, the braking single tube 40 and rectifier bridge 50 in the (PCC) power be arranged on skeleton 30, and the braking list Connected between pipe 40 and the radiator 20 by being coated with the silica gel cloth 2011 of heat conductive silica gel；

In the present embodiment, because the blower fan line of fan component 108 is required connect on pcb board 70, so in this step Also include the extended line 1085 of connecting fan line, the extended line 1085 is spacing to be connected on the first connecting plate 301.

The extended line 1085 of blower fan line is installed, then passes through special-shaped through hole 3013 to consolidate by screw temperature-sensing probe 60 again It is scheduled on radiator 20.

Braking single tube 40 is then installed, single tube body 401 is first connected to the first groove 30111 by the first spacer On, ensure that the first pin 402 is connected in the first protector 30112 during this, while the lower surface of single tube body 401 connects It is connected on the silica gel cloth 2011 for being coated with heat conductive silica gel, and then can be quick by the heat braked on single tube 40 by radiator 20 Distribute.

Finally install in rectifier bridge 50, the step, second groove of the correspondence of rectification body 501, the correspondence of the second pin 502 After second protector, rectifier bridge 50 is fixed on the transverse slat 201 of radiator 20 by screw.

S3, pcb board 70 is connected on the skeleton 30, and ensures the pin on the braking single tube 40 and the rectifier bridge 50 Pass through and be connected on the pcb board 70；

In the present embodiment, pcb board 70 is fixed on the second connecting plate 302 by the cooperation of screw and screwed hole, this , it is necessary to be located by connecting the first pin 402 and the first pore during individual, and the second pin 502 and the second pore.

S4, the silica gel cloth connection that multiple IGBT single tubes 801 on single tube IGBT modules 80 are coated with to heat conductive silica gel On radiator 20, and ensure that the pin on the IGBT single tubes 801 is passed through and is connected on the pcb board 70；

In the present embodiment, first it is coated with the silica gel cloth of heat-conducting silicone grease and passes through the opening 3024 on the second connecting plate 302 It is attached on the riser 202 of radiator 20, then by the three-prong 8011 of an IGBT single tube 801 along the first connecting plate 301 On locating slot 3015 push up so that then pacify one by one through the 3rd pore on pcb board 70 upper end of three-prong 8011 Others IGBT single tubes 801 are filled, multiple IGBT single tubes 801 are finally fixed on to the riser 202 of radiator 20 with press strip part 802 On.

S5, the both positive and negative polarity of the capacitive element 90 in power model is connected on the pcb board 70 through the skeleton 30；

In the present embodiment, before the installation of capacitive element 90, by the first pin 402, the second pin 502 and three-prong 8011 are connected on pcb board 70 through the part of pcb board 70 by soldering；(PCC) power assembling is finished, and frequency converter removes capacitive element Major loop outside 90 is basically completed.The outside that (PCC) power now is can be carried out inspected and detected, namely can check and examine Whether each pin soldering meets the requirements, and whether there is the phenomenons such as solder skip, rosin joint, failure welding.Pcb board 70 and skeleton are can pass through simultaneously Space between 30 the first connecting plate 301 has checked whether that debris enters.

After above-mentioned steps are completed, the capacitor board 901 on capacitive element 90 is connected on the first connecting plate 301, Ran Houzheng Electrode boss 903 and negative electrode boss 904 pass through the perforate being correspondingly arranged on the first connecting plate 301 to be connected electrically on pcb board 70, So as to complete the connection of capacitive element 90, during this, the quantity of capacitor cell 902 is multiple, and is connected to capacitor board side by side On 901, multiple capacitor cells 902 are vertically placed in the 3rd cavity 1013, so as to ensure that the reasonable cloth of the larger device of size Put, so that the utilization rate in the space in drain pan group valency is higher, and then ensures on the premise of each component size is determined, Entirely frequency converter is smaller

S6, the part after above-mentioned assemble is put on drain pan component 10, then fan component 108 is installed.

In the present embodiment, the skeleton 30 of all parts is connected, passes through the first extension on the second connecting plate 302 3021 and second the cooperation two of extension 3022 and the first chute 103 and the second chute 104 on box body 101 complete skeleton 30 with the connection of drain pan component 10.

In the present embodiment, fan component 108 is positioned by the rocket header structure 1083 on the first cavity 1011, together When fan component 108 along positioning bar 1084 position mobile link in the first cavity 1011, finally by fan component 108 The connecting line of blower fan is connected with the extended line 1085 of the blower fan line on the first connecting plate 301, so as to complete fan component 108 Connection.

The assembly technology of design, is core with skeleton 30 above, sequentially connects each on present skeleton 30 The whole component connected, is then connected in drain pan component 10 by individual part, when all parts are connected in this process Operating space is big, and then can reduce operating error, while first completing the installation of pcb board 70 in step S3, then completes step The installation of single tube IGBT modules 80 in S4, it is ensured that without being directed at braking single tube 40, the rectification simultaneously when pcb board 70 is connected All pins on bridge 50 and multiple IGBT single tubes 801, but multiple pins are connected in batches in an orderly manner, so as to greatly reduce The difficulty of technological operation, improves efficiency of assembling.

Meanwhile, such assembly technology causes the first cavity 1011 and the place of radiator 20 at the place of fan component 108 Second cavity 1012 is connected, and then can accelerate the radiating of radiator 20 during the operating of fan component 108, so as to quickly take away braking Heat on single tube 40 and IGBT single tubes 801, it is ensured that the continuous running of (PCC) power；Capacitive element 90 is connected to the 3rd cavity 1013 Interior, one side space efficient, the second heat dissipating grid 106 on the other hand set in the cavity wall of the 3rd cavity 1013 ensure that External dust is also avoid while the normal heat of 3rd cavity 1013 to enter in the 3rd cavity 1013, so as to also will not There is pressure air-flow press-in, and then the inner and outer air pressure of the 3rd cavity 1013 is balanced, the probability for the capacitive region that dust enters greatly reduces, Reduce the probability of machine failure.

Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model Protection domain within.

Claims (10)

1. a kind of frequency converter of independent ventiduct structure, it is characterised in that：Including drain pan component and being detachably connected on the drain pan Radiator, pcb board, (PCC) power and single tube IGBT modules, the skeleton are connected with skeleton on component, the skeleton The drain pan segmentation is located in a single space by part into multiple independent spaces, and the radiator, the PCB One, two or three in plate, the (PCC) power and the single tube IGBT modules is located in a single space, described Fan component is also associated with drain pan component, the space where the fan component is connected with the space where the radiator.

2. the frequency converter of independent ventiduct structure as claimed in claim 1, it is characterised in that：The skeleton includes being connected with each other The first connecting plate and the second connecting plate, the T-shaped connection of the first connecting plate and the second connecting plate, the first connecting plate lid It is located on the drain pan component, second connecting plate is connected in the drain pan component and is divided into the drain pan component vertically Left chamber body and right chamber body.

3. the frequency converter of independent ventiduct structure as claimed in claim 2, it is characterised in that：The second connecting plate two ends difference Correspondence first extension is outward extended with the first extension and the second extension, the inwall of the drain pan component provided with the One chute, and correspondence second extension is provided with the second chute, the top of second connecting plate is also convexly equipped with connection boss, The drain pan component bottom correspondence connection boss is provided with connecting groove.

4. the frequency converter of independent ventiduct structure as claimed in claim 2, it is characterised in that：The (PCC) power includes being connected to Braking single tube, rectifier bridge and capacitive element on first connecting plate, the braking single tube and the rectifier bridge are arranged on described First connecting plate is on the face of the second connecting plate, and the capacitive element is arranged on first connecting plate and just connected to described second On the face of plate.

5. the frequency converter of independent ventiduct structure as claimed in claim 4, it is characterised in that：The radiator and the capacitive element It is located at respectively in the left chamber body and the right chamber body, and the radiator is connected on second connecting plate.

6. the frequency converter of the independent ventiduct structure as described in claim 4 or 5, it is characterised in that：Set on first connecting plate There is the first bowl assembly of the accommodating braking single tube and house the second bowl assembly of the rectifier bridge, first bowl assembly and institute State the top that the second bowl assembly is located at the radiator.

7. the frequency converter of independent ventiduct structure as claimed in claim 6, it is characterised in that：The pcb board is connected to described On one connecting plate, the braking single tube and the rectifier bridge are located at the lower section of the pcb board, and the braking single tube and described whole Stream bridge electrically connects the pcb board.

8. the frequency converter of independent ventiduct structure as claimed in claim 7, it is characterised in that：The single tube IGBT modules are connected to Second connecting plate is on the side of the radiator, and the single tube IGBT modules may pass through first company including multiple Fishplate bar is connected electrically in the pin on the pcb board.

9. the frequency converter of independent ventiduct structure as claimed in claim 2, it is characterised in that：The radiator include transverse slat and with The riser of the transverse slat connection, and the multiple radiating fins being connected between the transverse slat and the riser are multiple described scattered Hot fin is parallel to each other, and the angle between any radiating fin and the transverse slat is 30 ° -35 °.

10. the frequency converter of independent ventiduct structure as claimed in claim 9, it is characterised in that：The transverse slat connection described first Connecting plate, the riser connects second connecting plate, and the riser upper end also extends perpendicularly outward and is easy to determining for positioning The correspondence positioning table is provided with locating slot on position platform, first connecting plate.