CN205141972U - Direct current reactor of converter - Google Patents
Direct current reactor of converter Download PDFInfo
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- CN205141972U CN205141972U CN201520850975.3U CN201520850975U CN205141972U CN 205141972 U CN205141972 U CN 205141972U CN 201520850975 U CN201520850975 U CN 201520850975U CN 205141972 U CN205141972 U CN 205141972U
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Abstract
The utility model provides a direct current reactor of converter, direct current reactor install in the heat dissipation channel of the base of converter, heat dissipation channel in install and be used for radiating radiator unit to direct current reactor passes through direct current reactor copper bar group and sets up the outside direct current contactor lug connection at heat dissipation channel. The utility model provides a direct current reactor of converter that the radiating effect is good, mounting layout is simple, the working process is stable.
Description
Technical field
The utility model relates to Low Voltage Electrical Apparatus, particularly a kind of direct current reactor of frequency converter.
Background technology
The birth of frequency converter comes from the demand of alternating current machine to stepless speed regulation, along with the appearance of the parts such as thyristor, static induction transistor, the ambipolar thyristor of high pressure resistant insulation grid, electrical technology has had the change of making rapid progress, frequency converter timing technology also develops thereupon, the special pulse-width modulation VVVF speed regulation technology new step that allowed frequency converter climb up especially.
But, along with the continuous extension of power electronic technology application, frequency converter also gradually be deep into industrial every field, therefore market is to the performance requirement of frequency converter, and power requirement also gets more and more, and powerful frequency converter is also born thereupon; Big-power transducer is concerning the layout requirements of structure relative to higher small-power, because the capacity of device, quantity, cooling requirements is all relatively high.The topology layout of existing frequency converter is relatively looser, and mounting structure size is large compact not, and then makes production cost high.
And, existing a lot of transducer power device be also as far as possible with high power valve, what cause device like this is excessive according to patience, adds design cost; Radiating mode is also be contained in above a module radiator by unified for device, cause the large weight of monolithic radiator volume large like this, and weight is large, also high to the requirement of assembling, gives to produce to install to bring very large inconvenience.Also have radiating mode be provided with polylith radiator, but due to the layout between radiator unreasonable, not only have impact on radiating effect, make radiator structure complexity reduce efficiency of assembling simultaneously.Fan design position in other radiator structure can not meet heat dispersion, reduce further the functional reliability of device.
And the busbar negative pole for installing electric capacity in existing frequency converter adopts overlapping mode to be installed together, and have impact on installation effectiveness and electric capacity job stability; The installation site of direct current reactor and connected mode are comparatively complicated, have impact on heat radiation and the installation of direct current reactor; The major loop of frequency converter is long, there is a large amount of stray inductances, and major loop adopts fine copper row connected mode, wastes rapidoprint; The layout of Hall element and binding post is installed unreasonable, increases the overall dimensions of frequency converter.
Utility model content
The purpose of this utility model is the defect overcoming prior art, provides the direct current reactor of the frequency converter that a kind of good heat dissipation effect, mounting arrangement are simple, the course of work is stable.
For achieving the above object, the utility model have employed following technical scheme:
A kind of direct current reactor of frequency converter, described direct current reactor 8 is arranged in the heat dissipation channel 900 of the base 9 of frequency converter, radiating subassembly 7 for dispelling the heat is installed in described heat dissipation channel 900, and direct current reactor 8 is directly connected with the D.C. contactor 820 being arranged on heat dissipation channel 900 outside by direct current reactor copper bar group 810.
Further, described radiating subassembly 7 comprises the first radiator 71 and the second radiator 72 being arranged on heat dissipation channel 900 two ends respectively, and described direct current reactor 8 is arranged in the heat radiation gap 901 between the first radiator 71 and the second radiator 72.
Further, the sidewall of described base 9 is provided with and heat dissipation channel 900 is connected with the outside of base 9 exchange window 902 for the cold-hot wind realizing heat exchange, and cold-hot wind exchanges the side, end that window 902 is arranged on direct current reactor 8.
Further, two sidewalls that described base 9 is relative are separately installed with the cold-hot wind be oppositely arranged with the two ends of direct current reactor 8 and exchange window 902, and each cold-hot wind exchange window 902 is respectively equipped with cellular mesh.
Further, the two ends of described heat dissipation channel 900 are separately installed with the first blower fan group 73 and the second blower fan group 74, the direction of rotation of the first blower fan group 73 and the second blower fan group 74, thus can form unidirectional air-flow in heat dissipation channel 900, and unidirectional air-flow can complete heat exchange when the cold-hot wind through side, direct current reactor 8 end exchanges window 902.
Further, described base 9 is provided with supporting bracket 910, heat dissipation channel 900 is connected to form between the bottom of described supporting bracket 910 and base 9, described direct current reactor copper bar group 810 is connected with the D.C. contactor 820 of frequency converter through the reactor installation via hole 912 of supporting bracket 910, and is also provided with via seal insulation board 830 in reactor installation via hole 912.
Further, described via seal insulation board 830 comprises the first via hole mounting panel 831 and the second via hole mounting panel 832, described first via hole mounting panel 831 is fixedly connected with the edge matches that via hole 912 installed by reactor, one end of first via hole mounting panel 831 offers for the installation gap 8311 through direct current reactor copper bar group 810, and the edge of first via hole mounting panel 831 one end is also provided with the first installing hole 8312, the edge of described second via hole mounting panel 832 side is provided with and corresponding hard-wired second installing hole 8321 of the first installing hole 8312, second via hole mounting panel 832 is fixed on the opening side of installation gap 8311 for shutoff installation gap 8311.
Further, the other end of described first via hole mounting panel 831 is provided with the screw mounting hole 8313 be connected with direct current reactor copper bar group 810 by screw.
Further, described direct current reactor copper bar group 810 comprises the first reactor copper bar 811 and the second reactor copper bar 812, described first reactor copper bar 811 is all connected with direct current reactor 8 with one end of the second reactor copper bar 812, the other end of the first reactor copper bar 811 is connected with the cathode output end 205 of the rectification module 2 of frequency converter, the other end of the second reactor copper bar 812 is connected with D.C. contactor 820, and the first reactor copper bar 811 is L-type structure, the second reactor copper bar 812 is Z-type structure.
Further, the width of the first described radiator 71 is less than the width of the second radiator 72, and be provided with ventilation gap 903 between the first radiator 71 and the sidewall of base 9, one end of described ventilation gap 903 is connected with heat radiation gap 901, the other end is provided with blower fan group, and the direct current reactor copper bar group 810 that described direct current reactor 8 end is installed is placed in ventilation gap 903.
The direct current reactor of frequency converter of the present utility model is by being arranged in heat dissipation channel by direct current reactor, achieve direct current reactor in working order time efficiently radiates heat, not only ensure that direct current reactor job stability, optimize the mounting arrangement structure of direct current reactor simultaneously.In addition, by direct current reactor copper bar group, direct current reactor is connected with D.C. contactor, makes syndeton simple, improve efficiency of assembling.
Accompanying drawing explanation
Fig. 1 is mounting structure schematic diagram of the present utility model;
Fig. 2 is part mounting structure schematic diagram of the present utility model;
Fig. 3 is structure installment vertical view of the present utility model;
Fig. 4 is structure installment end view of the present utility model;
Fig. 5 is the structural representation of supporting bracket of the present utility model;
Fig. 6 is busbar of the present utility model and copper bar installation structure schematic diagram;
Fig. 7 is the mounting structure schematic diagram of direct current reactor of the present utility model;
Fig. 8 is the mounting structure end view of direct current reactor of the present utility model;
Fig. 9 is the mounting structure vertical view of radiating subassembly of the present utility model;
Figure 10 is the local mounting structure schematic diagram of direct current reactor of the present utility model;
Figure 11 is the structural representation of the first via hole mounting panel of the present utility model;
Figure 12 is the structural representation of the second via hole mounting panel of the present utility model;
Figure 13 is the structural representation that cold-hot wind of the present utility model exchanges window;
Figure 14 is the mounting structure schematic diagram of Hall element of the present utility model;
Figure 15 is the mounting structure partial schematic diagram of Hall element of the present utility model;
Figure 16 is output copper bar installation structure schematic diagram of the present utility model;
Figure 17 is the structural representation of capacitance component of the present utility model;
Figure 18 is the STRUCTURE DECOMPOSITION figure of busbar of the present utility model;
Figure 19 is the mounting structure schematic diagram of specific embodiment of the utility model;
Figure 20 is the structural representation of rectification module specific embodiment of the present utility model;
Figure 21 is the circuit theory diagrams of specific embodiment of the utility model.
Embodiment
Provide embodiment of the present utility model below in conjunction with accompanying drawing 1 to 21, further illustrate the direct current reactor embodiment of frequency converter of the present utility model.The direct current reactor of frequency converter of the present utility model is not limited to the description of following examples.
The utility model comprises input terminal 1, rectification module 2, capacitance component 3, IGBT module 4 (InsulatedGateBipolarTransistor), Hall element 5, lead-out terminal 6, radiating subassembly 7, direct current reactor 8 and base 9.
Input terminal 1 in Fig. 1 to Fig. 4 and lead-out terminal 6 are arranged on the both sides of base 9 respectively.Described rectification module 2 is arranged on the side of base 9 near input terminal 1, and rectification module 2 is connected with input terminal 1.Described IGBT module 4 is arranged on the side of base 9 near lead-out terminal 6, and IGBT module 4 is connected with lead-out terminal 6.Described capacitance component 3 is arranged on the middle part of base 9, and capacitance component 3 is connected with IGBT module 4 with rectification module 2 respectively.Described radiating subassembly 7 is arranged in the heat dissipation channel 900 of base 9, and radiating subassembly 7 is connected with IGBT module 4 with rectification module 2 respectively for dispelling the heat to rectification module 2 and IGBT module 4.Described direct current reactor 8 is arranged in heat dissipation channel 900.Frequency converter of the present utility model optimizes the mounting arrangement of each components and parts, the line structure that frequency converter adopts side input opposite side to export, make each components and parts of frequency converter mounting circuit schematic diagram order can put installation, thus reduce the whole circuit loop of frequency converter and taken up space, and then make the more compact brief introduction of component structure layout, effectively can reduce production cost, the spatial volume that reduction layout is installed, the electricity function index of product can be ensured again.In addition, by being arranged in heat dissipation channel by direct current reactor, not only ensure that the heat dispersion of direct current reactor, simplifying the mounting structure of direct current reactor simultaneously.
Particularly, base 9 in Fig. 1 to Fig. 5 is provided with supporting bracket 910, the heat dissipation channel 900 for installing radiating subassembly 7 is formed between the bottom of supporting bracket 910 and base 9 in Fig. 5, the both sides at supporting bracket 910 top are separately installed with input terminal 1 and lead-out terminal 6, and the middle part at supporting bracket 910 top has been mounted opposite rectification module 2, capacitance component 3, IGBT module 4 and Hall element 5.Preferably, supporting bracket 910 offers heat radiation installing hole 911, rectification module 2 and IGBT module 4 to be connected with the second radiator 72 respectively by heat radiation installing hole 911 and the first radiator 71 and to install.Supporting bracket and base stable connection, improve the sealing property of heat dissipation channel, and the installing hole that simultaneously dispels the heat is convenient to the installation of radiator and components and parts, improves efficiency of assembling, improves the radiating effect of rectification module and IGBT module simultaneously.In addition, base 9 is also provided with pcb board group 920 near the side of lead-out terminal 6, and described pcb board group 920 is arranged on the top of IGBT module 4, and pcb board group 920 comprises feature board 921 and the power panel 922 of stacked setting.Especially, feature board 921 is placed between power panel 922 and base 9, and power panel 922 is also provided with the power panel blower fan 9221 for dispelling the heat, and the flabellum of described power panel blower fan 9221 is arranged towards capacitance component 3.Space is saved in the stacked placement of pcb board, and power panel blower fan ensure that the heat dispersion of power panel.
Radiating subassembly 7 in Fig. 4 comprises the first radiator 71, second radiator 72, first blower fan group 73 and the second blower fan group 74.The first described blower fan group 73 and the second blower fan group 74 are arranged on the sidewall of the base 9 corresponding to heat dissipation channel 900 two ends respectively.The first described radiator 71 is arranged on heat dissipation channel 900 one end near the first blower fan group 73 and input terminal 1, the second described radiator 72 is arranged on the other end of heat dissipation channel 900 near the second blower fan group 74 and lead-out terminal 6, first radiator 71 is connected with rectification module 2 for dispelling the heat to rectification module 2, and the second radiator 72IGBT module 4 is connected for dispelling the heat to IGBT module 4.Preferably, first radiator 71 and the second radiator 72 are arranged in heat dissipation channel 900, and the first radiator 71 and the second radiator 72 carry out arrangement along the line of centres M of the first blower fan group 73 and the second blower fan group 74 to be installed, and the first blower fan group 73 and the second blower fan group 74 can form the one direction air-flow (airflow direction is as shown in the arrow E in Fig. 9) flowed to the first radiator 71 by the second radiator 72 in heat dissipation channel 900.Two radiators of separate setting ensure that and improve the heat dispersion of radiating subassembly by the efficiently radiates heat of rectification module and IGBT module, and the radiator of separate setting simultaneously, is convenient to installation and improves efficiency of assembling.The arrangement mode of radiator makes air-flow can not hindered through all radiators, ensure that air-flow can take away the heat on radiator, thus completes heat radiation work.In addition, it is contemplated that radiating subassembly is not limited only to comprise two radiators, plural radiator can also be provided with thus meets the heat dispersion of each components and parts in frequency converter.
The first radiator 71 in Fig. 4 and be provided with between the second radiator 72 heat radiation gap 901, in described heat radiation gap 901, direct current reactor 8 is installed.Described direct current reactor 8 is directly connected by the D.C. contactor 820 of direct current reactor copper bar group 810 with the frequency converter being arranged on heat dissipation channel 900 outside.Preferably, the width of the first radiator 71 in Fig. 8 and Fig. 9 is less than the width of the second radiator 72, and be provided with ventilation gap 903 between the first radiator 71 and the sidewall of base 9, one end of described ventilation gap 903 is connected with heat radiation gap 901, the other end is provided with blower fan group, and the direct current reactor copper bar group 810 that described direct current reactor 8 end is installed is placed in ventilation gap 903.The installation site of direct current reactor obtains efficiently radiates heat when making it in working order, not only ensure that direct current reactor job stability, optimizes the mounting arrangement structure of direct current reactor simultaneously.And direct current reactor makes syndeton simple, improve efficiency of assembling, ventilation gap improves the radiating effect of blower fan group to direct current reactor, is convenient to the installation of direct current reactor copper bar group simultaneously.
The sidewall of described base 9 is also provided with and heat dissipation channel 900 is connected with the outside of base 9 exchange window 902 for the cold-hot wind realizing heat exchange, and cold-hot wind exchanges the side, end that window 902 is arranged on direct current reactor 8.Particularly, the first blower fan group 73 in Fig. 9 and the second blower fan group 74 comprise the blower fan (not shown) that at least two are arranged on heat dissipation channel 900 end side by side respectively, the second described blower fan group 74 can by air intake heat dissipation channel 900 inside (as shown by arrow A) of heat dissipation channel 900 outside, the first described blower fan group 73 can by the Air blowing heat dissipation channel 900 (as shown by arrow B) of heat dissipation channel 900 inside, thus the first blower fan group 73 and the second blower fan group 74 can form unidirectional air-flow in heat dissipation channel 900, the flow direction of this unidirectional air-flow in heat dissipation channel as shown by arrow E, and can be passed through cold-hot wind when the air-flow in heat dissipation channel 900 runs into the obstruction of direct current reactor 8 and exchange the outside that window 902 flows to heat dissipation channel, under the effect of the first blower fan group 73, the air of heat dissipation channel 900 outside is also sucked in heat dissipation channel 900 by cold-hot wind exchange window 902 simultaneously, thus complete heat exchange at direct current reactor 8 place.Especially, two sidewalls that base 9 is relative are separately installed with the cold-hot wind be oppositely arranged with the two ends of direct current reactor 8 and exchange window 902, and each cold-hot wind exchange window 902 is respectively equipped with cellular mesh (as shown in figure 13).Preferably, the direction of rotation of the first blower fan group 73 and the second blower fan group 74 thus realize forming one direction air-flow in heat dissipation channel 900, or the first blower fan group 73 is identical from the rotation direction of the second blower fan group 74 but different also can the realization of blade structure forms one direction air-flow in heat dissipation channel 900.Cold-hot wind exchanges the side, end that window is arranged on direct current reactor, the both sides achieving direct current reactor form the region of a heat exchange, not only meet the heat dispersion of whole heat dissipation channel, complete the heat radiation work to direct current reactor simultaneously, and then improve radiating efficiency.
Direct current reactor copper bar group 810 in Fig. 7 comprises the first reactor copper bar 811 and the second reactor copper bar 812, described first reactor copper bar 811 is all connected with direct current reactor 8 with one end of the second reactor copper bar 812, the other end of the first reactor copper bar 811 is connected with the cathode output end 205 of the rectification module 2 of frequency converter, the other end of the second reactor copper bar 812 is connected with D.C. contactor 820, and the first reactor copper bar 811 is L-type structure, the second reactor copper bar 812 is Z-type structure.The syndeton of copper bar is simple and shape is convenient to installation, improves copper bar stability in use.
Direct current reactor copper bar group 810 in Fig. 8 with Figure 10 is connected with the D.C. contactor 820 of frequency converter through the reactor installation via hole 912 of supporting bracket 910, and is also provided with via seal insulation board 830 in reactor installation via hole 912.Particularly, via seal insulation board 830 comprises the first via hole mounting panel 831 and the second via hole mounting panel 832, described first via hole mounting panel 831 is fixedly connected with the edge matches that via hole 912 installed by reactor, one end of the first via hole mounting panel 831 in Figure 11 offers for the installation gap 8311 through direct current reactor copper bar group 810, and the edge of first via hole mounting panel 831 one end is also provided with the first installing hole 8312, the edge of the second via hole mounting panel 832 side in Figure 12 is provided with and corresponding hard-wired second installing hole 8321 of the first installing hole 8312, second via hole mounting panel 832 is fixed on the opening side of installation gap 8311 for shutoff installation gap 8311.Especially, the other end of the first via hole mounting panel 831 is provided with the screw mounting hole 8313 be connected with direct current reactor copper bar group 810 by screw.Via seal insulation board adopts the mode of two pieces of mounting panel splicings, not only ensure that the sealing of heat dissipation channel, is convenient to the installation of the sealed insulation plate when direct current reactor copper bar group is in place simultaneously, improves Installation Flexibility.
Described capacitance component 3 is arranged between rectification module 2 and IGBT module 4, and adopts the connected mode directly overlapped between capacitance component 3 and rectification module 2 and IGBT module 4.Rectification module 2 and the first radiator 71 are arranged on heat dissipation channel 900 one end near the first blower fan group 73, IGBT module 4 and the second radiator 72 are arranged on the other end of heat dissipation channel 900 near the second blower fan group 74, described capacitance component 3 is mounted opposite at the middle part of heat dissipation channel 900, and the both sides of capacitance component 3 directly overlap with rectification module 2 and IGBT module 4 respectively and are connected.Especially, the end of rectification module 2 is placed between capacitance component 3 and the first radiator 71, and the end of IGBT module 4 is placed between capacitance component 3 and the second radiator 72.Adopt the syndeton of overlap joint to make between rectification module and capacitance component and between IGBT module and capacitance component without the need to installing copper bar, and then the major loop reducing frequency converter taken up space, and improves installation effectiveness.
Described rectification module 2 and IGBT module 4 are arranged on the top of the first radiator 71 and the second radiator 72 respectively, first radiator 71 is connected with the base plane of base 9 with the bottom of the second radiator 72, has difference in height between the height of the first radiator 71 and the height of the second radiator 72.Particularly, first radiator 71 and the second radiator 72 assembled by the radiating fin (not shown) be arranged side by side respectively, the radiating fin of the radiating fin of the first radiator 71 and the second radiator 72 can be arranged to different height thus be realized the difference in height between the first radiator 71 and the second radiator 72.In the assembling process of frequency converter reality, because rectification module 2 can not ensure identical with the package dimension of IGBT module 4, the connected mode that capacitance component 3 and rectification module 2 and IGBT module 4 will be caused cannot to realize the capacitance component 3 involved by the utility model directly overlap, therefore by changing the height of radiating fin, and the height of radiating fin is changed when ensureing cooling requirements, thus height of formation is poor between the first radiator 71 and the second radiator 72, the smooth overlap joint meeting capacitance component 3 is installed.The advantage of design height difference is, difference in height compensate for the defect causing normally assembling because package dimension is different between components and parts, ensure that the accurate overlap joint between rectification module, IGBT module and capacitance component is installed, improve the accuracy of erection.
Preferably, the height of aspect ratio second radiator 72 of described first radiator 71 is low, and the bottom surface of the bottom surface of rectification module 2, capacitance component 3 and the bottom surface of IGBT module 4 are parallel to the base plane of base 9 respectively.The relative installation of rectification module, capacitance component and IGBT module is accurate, and mounting structure is stablized, thus improves the reliability of frequency converter work.
Shown in Figure 20 is a kind of embodiment of rectification module 2, rectification module 2 in the present embodiment is elements of encapsulating structure, the input and output of rectification module 2 are placed in the two ends of rectification module 2 respectively, wherein the input of rectification module 2 comprises the T-phase terminal 201, S-phase terminal 202 and the R phase terminal 203 that are arranged side by side, and the output of rectification module 2 comprises pole output 204 and cathode output end 205.Especially, the output of rectification module 2 also comprises R2 end 206 and G end 207, and R2 end 206 in Figure 21 and the controllable diode 208 that is also provided with between G end 207 for precharge.The rectification module 2 of the present embodiment is applicable to as a fairly large number of situation of electrochemical capacitor 33 on capacitance component in Figure 19 3, now adopts the rectification module 2 of encapsulating structure effectively can reduce installing space, improves installation effectiveness.
Described rectification module 2 can also be the another kind of embodiment shown in Fig. 1 to Fig. 4, rectification module 2 in the present embodiment is built by six diodes, the circuit theory diagrams that diode is built are identical with the internal enclosing structure of the rectification module 2 shown in Figure 21, six diodes are arranged in the supporting bracket 910 of base 9 side by side, and two often adjacent Diode series connect, thus defining three groups of diode groups, three groups of described diode groups are connected in parallel formation rectifier bridge stack.The rectification module 2 of the present embodiment is applicable to the situation of electrochemical capacitor 33 negligible amounts on capacitance component 3, now adopts the mounting means of rectifier bridge stack comparatively stable and saves cost.
Capacitance component 3 in Figure 17 and Figure 18 comprises busbar 32 and is arranged on the electrochemical capacitor 33 on busbar 32, described busbar 32 comprises the insulation board 321, busbar negative plate 322, insulating paper 323 and the busbar positive plate 324 that stack gradually installation, be fixedly connected with by blind rivet 327 between described insulation board 321, busbar negative plate 322, insulating paper 323 and busbar positive plate 324, described electrochemical capacitor 33 is arranged on the side surface that busbar 32 is provided with busbar positive plate 324.Especially, busbar negative plate 322 is the metal guide electroplaxs be integrated into, and the both sides of the busbar negative plate 322 be integrated into are connected with IGBT module 4 with the rectification module 2 of frequency converter respectively.Busbar structure reliable and stable, installation effectiveness is higher.The metal guide electroplax be simultaneously integrated into, is not only convenient to install the stability that also assures that busbar.
Shown in Fig. 3 is that of electrochemical capacitor 33 on capacitance component 3 specifically arranges embodiment, capacitance component 3 comprises three groups of capacitance group that six electrochemical capacitors 33 form, the electrochemical capacitor 33 of three groups of capacitance group forms the array that 3 take advantage of 2, described busbar negative plate 322 is connected in parallel with busbar positive plate 324, often organize capacitance group and comprise two with the electrochemical capacitor 33 connecting copper bar 326 and be installed in series, positive pole and the negative pole time of each electrochemical capacitor 33 are also provided with grading resistor 325, described blind rivet 327 is arranged between capacitance group, and blind rivet 327 is successively through insulation board 321, busbar negative plate 322, insulating paper 323 and busbar positive plate 324 complete fixing.Electrochemical capacitor rational and compact, blind rivet improves the stability of busbar assembling.
Particularly, the end of described busbar negative plate 322 side is provided with the negative terminal plate 3221 for connecting rectification module 2, described negative terminal plate 3221 offers negative terminal hole 3222 side by side, directly overlaps between negative terminal plate 3221 and the cathode output end 204 of rectification module 2 and be connected.The side of described busbar positive plate 324 is provided with the positive terminal plate 3241 of the direct current reactor 8 for connecting frequency converter, and described positive terminal plate 3241 is L-type, and the horizontal part of the positive terminal plate 3241 of L-type and negative terminal plate 3221 are oppositely arranged.In addition, the side of busbar positive plate 324 is along being provided with positive pole outlet terminal 3242, the side of busbar negative plate 322 is along being provided with negative pole outlet terminal 3223, described positive pole outlet terminal 3242 and negative pole outlet terminal 3223 overlap with the input of IGBT module 4 and are connected, positive pole outlet terminal 3242 and negative pole outlet terminal 3223 are embedded in the confined planes 3231 of insulating paper 323 side, and positive pole outlet terminal 3242 and negative pole outlet terminal 3223 are disposed adjacent side by side, positive pole outlet terminal 3242, negative pole outlet terminal 3223 and confined planes 3231 are in same plane.Described direct current reactor 8 and busbar positive plate 324 connection, and between direct current reactor 8 and busbar positive plate 324, be also provided with D.C. contactor 820 and fuse 821.The overlap joint that negative terminal plate achieves busbar negative plate and rectification module is installed, and improves installation effectiveness and installs stability.Positive terminal plate is convenient to the wiring of busbar positive plate and direct current reactor.The structure of positive pole outlet terminal and negative pole outlet terminal is simply installed stable, and is convenient to accurately overlap with IGBT module be connected.
Shown in Fig. 6 and Figure 19 is a kind of specific embodiment of the utility model mounting structure, described input terminal 1 is directly connected by inputting copper bar group 31 with between rectification module 2, described lead-out terminal 6 is directly connected by exporting copper bar 61 with between IGBT module 4, described input copper bar group 31, for being connected respectively with rectification module 2 and capacitance component 3 by input terminal 1, comprises three-phase alternating current input copper bar 311, bus positive pole copper bar 312 and bus negative pole copper bar 313.The input of rectification module 2 is connected with input terminal 1 by the three-phase alternating current input copper bar 311 of input copper bar group 31, and the output of rectification module 2 directly overlaps with the side of capacitance component 3 and is connected.The mounting means of rectification module shortens the distance of major loop between rectification module to capacitance module, thus reduces the stray inductance in major loop, improves the stability of frequency converter work.The copper bar connected mode of input and lead-out terminal and components and parts, ensures installation reliability, and is convenient to install.
Particularly, in overlap joint connection, the side of described capacitance component 3 directly overlaps with the input of rectification module 2 and is connected, and the opposite side of capacitance component 3 is provided with for directly overlapping with IGBT module 4 the positive pole outlet terminal 3242 and negative pole outlet terminal 3223 that are connected.The end of described busbar 32 side is provided with negative terminal plate 3221, the output of described rectification module 2 comprises cathode output end 204, described cathode output end 204 and negative terminal plate 3221 directly overlap to be formed and are electrically connected, preferably, negative terminal plate 3221 is arranged on the end of busbar negative plate 322 side, negative terminal plate 3221 also offers the negative terminal hole 3222 for being fixedly connected with.
In copper bar connection, for the rectification module 2 of encapsulating structure, the three-phase alternating current input copper bar 311 stated comprises the T-phase copper bar 3111, S-phase copper bar 3112 and the R phase copper bar 3113 that T-phase terminal 201, S-phase terminal 202 and R phase terminal 203 are connected with input terminal 1 respectively, the output of rectification module 2 comprises the cathode output end 204 and cathode output end 205 that are arranged side by side, described cathode output end 204 directly overlaps with capacitance component 3 and is connected, and described cathode output end 205 is connected with input terminal 1 by the bus positive pole copper bar 312 of input copper bar group 31.Preferably, the structure of bus positive pole copper bar 312 is Z-shaped, and the bus positive pole copper bar 312 of Z-shaped structure is placed in the top of three-phase alternating current input copper bar 311.Rectification module syndeton is simple, improves efficiency of assembling.Structure and the mounting means of bus positive pole copper bar save installing space, do not affect the installation that uses and connect up of other copper bars simultaneously.
Especially, capacitance component 3 in Figure 21 comprises busbar positive plate 324 and busbar negative plate 322, described busbar positive plate 324 and busbar negative plate 322 are respectively equipped with positive terminal plate 3241 and negative terminal plate 3224, direct current reactor 8 is provided with between described positive terminal plate 3241 and cathode output end 205, bus negative pole copper bar 313 is provided with between described negative terminal plate 3224 and input terminal 1, and rectification module 2 overlap joint is arranged on one end of capacitance component 3 corresponding input terminal 1 side, positive terminal plate 3241 and negative terminal plate 3224 are arranged on the other end of capacitance component 3 corresponding input terminal 1 side.
IGBT module in Figure 14 with Figure 15 4 is connected with lead-out terminal 6 by exporting copper bar 61, and described Hall element 5 is fixedly mounted on output copper bar 61, and between Hall element 5 and lead-out terminal 6, staggered floor is arranged and installed.Shift to install and make compact in design, reduce the space shared by components and parts installation, improve installation effectiveness.
Particularly, described IGBT module 4 is arranged on the base 9 of frequency converter, described base 9 is also provided with terminal installing rack 930, described lead-out terminal 6 is arranged on the top of terminal installing rack 930, described output copper bar 61 is placed in the bottom of terminal installing rack 930, and the one end exporting copper bar 61 is connected with the IGBT module 4 of terminal installing rack 930 side, the other end exporting copper bar 61 is connected along the opposite side of terminal installing rack 930 with lead-out terminal 6.Preferably, Hall element 5 is placed in immediately below terminal installing rack 930.And be respectively equipped with gap between the top of Hall element 5 and terminal installing rack 930 and between the bottom of Hall element 5 and base 9.Output copper bar employs the utilized space below terminal installing rack effectively, thus reduces Hall element and export copper installation requisite space, reduces the bulk of frequency converter.The installation site of Hall element reduces Hall element further and exports copper installation requisite space, improves installation effectiveness.
Output copper bar 61 in Figure 16 comprises interconnective installation portion 62 and kink 63, the end of described installation portion 62 is connected with IGBT module 4, described Hall element 5 is arranged on installation portion 62, one end of described kink 63 is placed in the bottom of terminal installing rack 930 and is fixedly connected with installation portion 62, and the other end of kink 63 is placed in the top of terminal installing rack 930 and is connected with lead-out terminal 6.Particularly, Hall element 5 is arranged on the installation portion 62 of output copper bar 61 by the sensor mounting hole 501 offered in the middle part of it, the sidewall of Hall element 5 is also provided with sensor fixing hole 502, described sensor fixing hole 502 is fixedly connected with installation portion 62 by transducer hold-down screw 64, and installation portion 62 is fixedly connected with by copper bar attachment screw 65 with the corresponding end of kink 63.Export copper bar to be assembled by the copper bar that two are separated, be not only convenient to Hall element and the installation exporting copper bar, be convenient to the connection exporting copper bar and lead-out terminal simultaneously.And the mounting structure of Hall element is simple and reliable, improve the installation effectiveness of transducer.
Kink 63 in Figure 16 comprises the first connecting portion 631 and the second connecting portion 632 be connected with the two ends of the first connecting portion 631 respectively and the 3rd connecting portion 633, the first described connecting portion 631 is placed in the side of terminal installing rack 930, the second described connecting portion 632 is placed in the bottom of terminal installing rack 930 and is connected with installation portion 62, the 3rd described connecting portion 633 is placed in the top of terminal installing rack 930 and is connected with lead-out terminal 6, and the angular range between the first connecting portion 631 and the second connecting portion 632 is 30 ° to 150 °, angular range between first connecting portion 631 and the 3rd connecting portion 633 is 150 ° to 30 °.Preferably, kink 63 is U-shaped structure, and the angle between the first connecting portion 631 and the second connecting portion 632 is 90 °, and the angle between the first connecting portion 631 and the 3rd connecting portion 633 is also 90 °.The angular relationship of kink ensure that the accuracy exporting copper installation, improves the flexibility exporting copper installation simultaneously.
IGBT module 4 as shown in figure 14, the specific embodiment that Hall element 5 and output copper bar 61 are installed, the base 9 of frequency converter is provided with side by side three IGBT module 4, described base 9 is also provided with terminal installing rack 930, the top of described terminal installing rack 930 is provided with U phase output terminals 601 side by side, V phase output terminals 602 and W phase output terminals 603, three IGBT module 4 by three export copper bars 61 respectively with U phase output terminals 601, V phase output terminals 602 is connected with W phase output terminals 603 correspondence, and each output copper bar 61 is installed with Hall element 5 respectively.Especially, three Hall elements 5 exported on copper bar 61 are arranged on immediately below terminal installing rack 930 respectively, and the edge sidewall of the end sidewalls of three IGBT module 4 and terminal installing rack 930 is in same vertical plane.The position relationship of IGBT module and terminal installing rack reduces the mounting distance exported between copper sheet and lead-out terminal, ensure that the normal use of IGBT module simultaneously.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection range of the present utility model.
Claims (10)
1. the direct current reactor of a frequency converter, it is characterized in that: described direct current reactor (8) is arranged in the heat dissipation channel (900) of the base (9) of frequency converter, radiating subassembly (7) for dispelling the heat is installed in described heat dissipation channel (900), and direct current reactor (8) is directly connected by the D.C. contactor (820) that direct current reactor copper bar group (810) is outside with being arranged on heat dissipation channel (900).
2. the direct current reactor of frequency converter according to claim 1, it is characterized in that: described radiating subassembly (7) comprises the first radiator (71) and the second radiator (72) that are arranged on heat dissipation channel (900) two ends respectively, and described direct current reactor (8) is arranged in the heat radiation gap (901) between the first radiator (71) and the second radiator (72).
3. the direct current reactor of frequency converter according to claim 2, it is characterized in that: the sidewall of described base (9) is provided with and heat dissipation channel (900) is connected with the outside of base (9) exchange window (902) for the cold-hot wind realizing heat exchange, and cold-hot wind exchanges the side, end that window (902) is arranged on direct current reactor (8).
4. the direct current reactor of frequency converter according to claim 3, it is characterized in that: two sidewalls that described base (9) is relative are separately installed with the cold-hot wind be oppositely arranged with the two ends of direct current reactor (8) and exchange window (902), and each cold-hot wind exchange window (902) is respectively equipped with cellular mesh.
5. the direct current reactor of the frequency converter according to claim 3 or 4, it is characterized in that: the two ends of described heat dissipation channel (900) are separately installed with the first blower fan group (73) and the second blower fan group (74), the direction of rotation of the first blower fan group (73) and the second blower fan group (74), thus can form unidirectional air-flow in heat dissipation channel (900), and unidirectional air-flow can complete heat exchange when the cold-hot wind through direct current reactor (8) side, end exchanges window (902).
6. the direct current reactor of frequency converter according to claim 1, it is characterized in that: described base (9) is provided with supporting bracket (910), heat dissipation channel (900) is connected to form between the bottom of described supporting bracket (910) and base (9), described direct current reactor copper bar group (810) is connected with the D.C. contactor (820) of frequency converter through reactor installation via hole (912) of supporting bracket (910), and is also provided with via seal insulation board (830) in reactor installation via hole (912).
7. the direct current reactor of frequency converter according to claim 6, it is characterized in that: described via seal insulation board (830) comprises the first via hole mounting panel (831) and the second via hole mounting panel (832), described first via hole mounting panel (831) is fixedly connected with the edge matches that via hole (912) installed by reactor, one end of first via hole mounting panel (831) offers for the installation gap (8311) through direct current reactor copper bar group (810), and the edge of first via hole mounting panel (831) one end is also provided with the first installing hole (8312), the edge of described second via hole mounting panel (832) side is provided with hard-wired second installing hole (8321) corresponding to the first installing hole (8312), the opening side that second via hole mounting panel (832) is fixed on installation gap (8311) is used for shutoff installation gap (8311).
8. the direct current reactor of frequency converter according to claim 7, is characterized in that: the other end of described first via hole mounting panel (831) is provided with the screw mounting hole (8313) be connected with direct current reactor copper bar group (810) by screw.
9. the direct current reactor of frequency converter according to claim 1, it is characterized in that: described direct current reactor copper bar group (810) comprises the first reactor copper bar (811) and the second reactor copper bar (812), described first reactor copper bar (811) is all connected with direct current reactor (8) with one end of the second reactor copper bar (812), the other end of the first reactor copper bar (811) is connected with the cathode output end (205) of the rectification module (2) of frequency converter, the other end of the second reactor copper bar (812) is connected with D.C. contactor (820), and the first reactor copper bar (811) is L-type structure, second reactor copper bar (812) is Z-type structure.
10. the direct current reactor of frequency converter according to claim 2, it is characterized in that: the width of described the first radiator (71) is less than the width of the second radiator (72), and be provided with ventilation gap (903) between the sidewall of the first radiator (71) and base (9), one end of described ventilation gap (903) is connected with heat radiation gap (901), the other end is provided with blower fan group, and the direct current reactor copper bar group (810) that described direct current reactor (8) end is installed is placed in ventilation gap (903).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520850975.3U CN205141972U (en) | 2015-10-29 | 2015-10-29 | Direct current reactor of converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520850975.3U CN205141972U (en) | 2015-10-29 | 2015-10-29 | Direct current reactor of converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205141972U true CN205141972U (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520850975.3U Active CN205141972U (en) | 2015-10-29 | 2015-10-29 | Direct current reactor of converter |
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| CN (1) | CN205141972U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231347A (en) * | 2018-03-26 | 2018-06-29 | 江苏东方四通科技股份有限公司 | A kind of transformer of fast smelting furnace induction power supply and the overall structure of resonant capacitance |
| CN112260520A (en) * | 2020-10-28 | 2021-01-22 | 浙江佳乐科仪股份有限公司 | Improvement type converter base |
-
2015
- 2015-10-29 CN CN201520850975.3U patent/CN205141972U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231347A (en) * | 2018-03-26 | 2018-06-29 | 江苏东方四通科技股份有限公司 | A kind of transformer of fast smelting furnace induction power supply and the overall structure of resonant capacitance |
| CN108231347B (en) * | 2018-03-26 | 2023-06-02 | 江苏东方四通科技股份有限公司 | Integral structure of transformer and resonant capacitor of fast smelting furnace induction power supply |
| CN112260520A (en) * | 2020-10-28 | 2021-01-22 | 浙江佳乐科仪股份有限公司 | Improvement type converter base |
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