CN203840187U - Electric power converter - Google Patents
Electric power converter Download PDFInfo
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- CN203840187U CN203840187U CN201420225663.9U CN201420225663U CN203840187U CN 203840187 U CN203840187 U CN 203840187U CN 201420225663 U CN201420225663 U CN 201420225663U CN 203840187 U CN203840187 U CN 203840187U
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Abstract
Provided is an electric power converter, wherein the cooling capability is not weakened when the width of the converter is reduced. The converter (1) comprises a radiator (20), three power modules (36a, 36b and 36c), a diode module (32), a wind tunnel casing (10), an upper fan (2) and a lower fan (3). The radiator (20) includes a radiator pedestal (21), an upper fin group (22) and a lower fin group (23), wherein the upper fin group (22) and lower fin group (23) are arranged at the rear surface (a) of the radiator pedestal (21). The three power modules (36a, 36b and 36c) and diode module (32) are arranged at the front surface (21b) of the radiator pedestal (21). The wind tunnel casing (10) accommodates the upper fin group (22) and lower fin group (23) to form a wind tunnel (1) which is used as a ventilation space of cooling air, and air vents (130) are formed at corresponding positions between the upper fin group (22) and lower fin group (23). The upper fan (2) is arranged at the upper end portion of the wind tunnel casing (10) so that the cooling air passes the upper fin group (22); and the lower fan (3) is arranged at the lower end portion of the wind tunnel casing (10) so that the cooling air passes the lower fin group (23).
Description
Technical field
Disclosed execution mode relates to power inverter.
Background technology
In the past, known such electronic equipment, this electronic equipment has: radiator, its upper surface at pedestal is provided with heat generating components, at the back side of pedestal, has a plurality of cooling fins; Housing, it forms as the wind-tunnel of the airspace of cooling air and takes in cooling fins; And 2 desk fans, they are arranged at housing, and cooling air is forcibly guided to cooling fins (for example,, with reference to patent documentation 1).
Patent documentation 1: TOHKEMY 2007-250893 communique
In electronic equipment, such as having, as power inverter, in the containing box of distribution board and control panel etc., configure abreast with miscellaneous equipment the device using.In such electronic equipment, the miniaturization of strong desired width direction size.
But in the electronic equipment of above-mentioned prior art, 2 desk fans are configuration abreast on Width, so Width size increases.In the situation that fan being made as to 1 in order to reduce Width size, air quantity significantly reduces, and cooling capacity declines.Like this, in above-mentioned prior art, can not in the situation that not reducing cooling capacity, make Width compact in size.
Utility model content
The utility model completes in view of such problem, and object is to provide a kind of power inverter that can make the Width compact in size of device in the situation that not reducing cooling capacity.
In order to address the above problem, the power inverter of the 1st aspect of the present utility model is changed electric power, it is characterized in that, this power inverter has: radiator, the 1st surperficial fins set and the 2nd fins set that it has pedestal and is configured in a side of described pedestal; A plurality of electric components, they are arranged on the surface of the opposite side of described pedestal; Housing, it takes in described the 1st fins set and described the 2nd fins set, forms the wind-tunnel as the airspace of cooling air, in the position corresponding between described the 1st fins set and described the 2nd fins set, has ventilating opening; The 1st fan, the end that it is arranged on direction of ventilation one side of described housing, is configured to and makes described cooling air by described the 1st fins set; And the 2nd fan, the end that it is arranged on the direction of ventilation opposite side of described housing, is configured to and makes described cooling air by described the 2nd fins set.
The power inverter of the 2nd aspect of the present utility model is characterised in that, described the 1st fins set and described the 2nd fins set configure dividually.
The power inverter of the 3rd aspect of the present utility model is characterised in that, described a plurality of electric components are configured in 1st region corresponding with described the 1st fins set in the surface of described opposite side of described pedestal and 2nd region corresponding with described the 2nd fins set dividually.
The power inverter of the 4th aspect of the present utility model is characterised in that, 1 the 1st above electric component of the upstream side that described a plurality of electric components comprise the flow direction that is configured in the described cooling air in described the 1st region or described the 2nd region.
The power inverter of the 5th aspect of the present utility model is characterised in that, described a plurality of electric component comprises a plurality of described the 1st electric components, a plurality of described the 1st electric components in the situation that be configured in described the 1st region or described the 2nd region in arbitrary same area, in the direction vertical with described direction of ventilation abreast configuration.
The power inverter of the 6th aspect of the present utility model is characterised in that, described a plurality of electric component also comprises the 2nd electric component that caloric value is less than described the 1st electric component, in the situation that described the 1st electric component and described the 2nd electric component are configured in the arbitrary same area in described the 1st region or described the 2nd region, described the 2nd electric component is configured in the downstream of described flow direction with respect to described the 1st electric component.
The power inverter of the 7th aspect of the present utility model is characterised in that, described the 1st fins set and described the 2nd fins set are configured to: in the situation that be configured in the summation that the summation of the caloric value of the electric component in the region of any one party in described the 1st region and described the 2nd region is greater than the caloric value of the electric component in the region that is configured in the opposing party, the heat dissipation capacity of the fins set that a side's larger with the summation of described caloric value region is corresponding is greater than the heat dissipation capacity of fins set corresponding to a side's less with the summation of described caloric value region.
The power inverter of the 8th aspect of the present utility model is characterised in that, the length of fins set corresponding to a side's larger with the summation of described caloric value region in described direction of ventilation forms and is greater than the length of fins set corresponding to a side's less with the summation of described caloric value region in described direction of ventilation.
The power inverter of the 9th aspect of the present utility model is characterised in that, described power inverter also has plate member, this plate member is arranged between described the 1st fins set and described the 2nd fins set in described housing, and described wind-tunnel is divided into the airspace of described cooling air and the airspace of the described cooling air that described the 2nd fan forms that described the 1st fan forms.
The power inverter of the 10th aspect of the present utility model is characterised in that, the flow direction that described the 1st fan and described the 2nd fan are configured to described cooling air is opposite directions, and described plate member is divided into the two air inlet or exhaust outlet of described the 1st fan and described the 2nd fan by described ventilating opening.
The power inverter of the 11st aspect of the present utility model is characterised in that, the flow direction that described the 1st fan and described the 2nd fan are configured to described cooling air is mutually the same direction, and described plate member is divided into the air inlet of the side in described the 1st fan and described the 2nd fan and the exhaust outlet of the opposing party in described the 1st fan and described the 2nd fan by described ventilating opening.
According to power inverter of the present utility model, can in the situation that not reducing cooling capacity, make the Width compact in size of device.
Accompanying drawing explanation
Fig. 1 is the stereogram of structure that schematically shows the DC-to-AC converter of an execution mode.
Fig. 2 is the right side view that schematically shows the structure of DC-to-AC converter.
Fig. 3 is the exploded perspective view that schematically shows the structure of DC-to-AC converter.
Fig. 4 is the decomposition right side view that schematically shows the structure of DC-to-AC converter.
Fig. 5 is the front view that schematically shows the structure of DC-to-AC converter and the flow direction of the cooling air in wind-tunnel.
Fig. 6 is the circuit diagram of an example that the circuit structure of main part is shown.
Fig. 7 (a), Fig. 7 (b) are for the key diagram of the simulation result relevant to cooling capacity being undertaken by present inventor etc. is described.
Fig. 8 schematically shows the front view that the direction of cooling air is made as to the structure of the DC-to-AC converter in contrary variation and the flow direction of the cooling air in wind-tunnel.
Fig. 9 schematically shows to be configured to the direction of cooling air is made as to the structure of DC-to-AC converter in the variation of mutually the same direction and the front view of the flow direction of the cooling air in wind-tunnel.
Figure 10 schematically shows the front view that the direction of cooling air is made as to the structure of the DC-to-AC converter in contrary variation and the flow direction of the cooling air in wind-tunnel.
Figure 11 is the right side view that is illustrated schematically in the structure of the DC-to-AC converter in the variation between upper fins group and lower fins group with fins set.
Figure 12 is the front view that schematically shows the structure of the DC-to-AC converter in the variation that only configures 1 diode (led) module and the flow direction of the cooling air in wind-tunnel.
Label declaration
1 DC-to-AC converter (power inverter)
2 top fans (the 1st fan)
3 bottom fans (the 2nd fan)
6 demarcation strips (plate member)
10 wind-tunnel housings (housing)
11 wind-tunnel
20 radiators
21 radiator bases (pedestal)
The rear surface of 21a pedestal (side surface of pedestal)
The front surface of 21b pedestal (the opposite side surface of pedestal)
22 upper fins groups (the 1st fins set)
23 lower fins groups (the 2nd fins set)
32 diode (led) modules (electric component, the 2nd electric component)
36 power models (electric component, the 1st electric component)
36a, 36b, 36c power model (electric component, the 1st electric component)
130 ventilating openings
T1 upper area (the 1st region)
T2 lower area (the 2nd region)
Embodiment
Below, with reference to accompanying drawing, an execution mode is described.In addition, below, to power inverter being applied to the situation of DC-to-AC converter, describe.In addition, exist in the accompanying drawings 'fornt', 'back', " left side ", " right side ", " on ", in the situation of the annotation of D score, the 'fornt', 'back' in the explanation in specification, " left side ", " right side ", " on ", D score refers to the direction of this annotation indication.But, the position relationship of DC-to-AC converter be not limited to 'fornt', 'back', " left side ", " right side ", " on ", the concept of D score.In addition, " flow direction of cooling air " in the explanation in specification refers to the actual flow direction (direction from air inlet to exhaust outlet) of cooling air.On the other hand, " direction of ventilation of cooling air " in explanation in specification do not refer to the actual flow direction of cooling air, and refers to the direction that cooling air can be mobile (comprising direction from air inlet to exhaust outlet and the direction both sides from exhaust outlet to air inlet).
The structure > of < DC-to-AC converter
As shown in Fig. 1～Fig. 5, the DC-to-AC converter 1 (power inverter) of present embodiment is direct current power to be converted to the device of alternating electromotive force.This DC-to-AC converter 1 take arranging that under state, main part 30 described later is positioned at front side, wind-tunnel described later 11 is positioned at the mode that the direction of ventilation of rear side, cooling air is above-below direction, in the dish (not shown) of distribution board and control panel etc., uses with miscellaneous equipment (not shown) row arrangement.Such DC-to-AC converter 1 has: main base 12 (omitting diagram in Fig. 5), and it forms roughly plate shape, has opening 120; Radiator 20 (omitting diagram in Fig. 5), it is arranged at main base 12; Main part 30 (with reference to Fig. 6 described later), it is configured in the front side of main base 12; Body shell (not shown), it takes in main part 30; And wind-tunnel housing 10 (housing), it is configured in the rear side of main base 12, forms the wind-tunnel 11 as the airspace of cooling air in inside.
Wind-tunnel housing 10 has roughly rectangular shape, in the mode of long side direction and vertical direction almost parallel, is disposed at above-mentioned dish.This wind-tunnel housing 10 has: outer wall 13,13, and they erect respectively the two ends, left and right of the rear surface 12a that is arranged on main base 12, and have respectively above-mentioned ventilating opening 130,130; Lid 14, the rear side that it is arranged on outer wall 13,13, covers above-mentioned wind-tunnel 11 (omitting diagram in Fig. 5).Main base 12 and outer wall 13,13 can by the material split of aluminium alloy etc. form, also can form integratedly.
As shown in Figure 6, main part 30 has terminal board 31, diode (led) module 32 (electric components, the 2nd electric component), relay 34, smmothing capacitor 35,3 power model 36a, 36b, 36c (electric component, the 1st electric component) and the terminal board 37 of open and close controlling carried out in direct current reactor 33, contact.In addition,, in Fig. 1～Fig. 5, suitably omitted the diagram of the inscape beyond the diode (led) module 32 of main part 30 and 3 power model 36a, 36b, 36c.
Terminal board 31 is for example accommodated in the bottom in aforementioned body housing, to connect/relaying of the feed cable of AC power 4.
Diode (led) module 32 is electrically connected to the terminal of terminal board 31, and 3 phases (R, S, the T phase) alternating electromotive force of supplying with via terminal board 31 from AC power 4 is carried out to rectification, to 2 DC bus P, N output direct current powers.
Direct current reactor 33 and DC bus P (or, can be also DC bus N) connect, improve the power factor of direct current power.
Smmothing capacitor 35 is connected with DC bus P, N, and the ripple component of the direct voltage after diode (led) module 32 rectifications is carried out to smoothing.
Power model 36a, 36b, 36c are for example by IGBT (Insulated Gate Bipolar Transistor; Insulated gate bipolar semiconductor) etc. semiconductor element forms, and has separately the switch element (not shown) that forms respectively power conversion circuit, and each interchange with 3 phases (U, V, W phase) be setting accordingly.These power models 36a, 36b, 36c are connected with DC bus P, N respectively, and each interchange according to 3 phases (U, V, W phase) is electrically connected to the terminal of terminal board 37, via terminal board 37, the alternating electromotive force of this each phase outputed to motor 5.
Terminal board 37 is for example accommodated in the bottom in aforementioned body housing, to connect/relaying of the motor cable of motor 5.
As shown in Fig. 1～Fig. 5, radiator 20 has radiator base 21 (pedestal), upper fins group 22 (the 1st fins set) and the lower fins group 23 (the 2nd fins set) of roughly plate shape, radiator 20 is accommodated in the mode of above-mentioned wind-tunnel 11 by embedding above-mentioned opening 120 with fins set 22,23, be arranged on the front side of aforementioned body pedestal 12, by bolt etc., be fixed.Upper fins group 22 is arranged on rear surface 21a (side surface) top of radiator base 21 a plurality of fins 220 by setting form, and a plurality of fins 230 that lower fins group 23 is arranged on the 21a bottom, rear surface of radiator base 21 by setting form.Radiator base 21, upper fins group 22 and lower fins group 23 by the transcalent material one of the appearances such as aluminium and copper or split form.Upper fins group 22 and lower fins group 23, in the rear surface of radiator base 21 21a configuration discretely up and down, between upper fins group 22 and lower fins group 23 in the 21a of the rear surface of radiator base 21, are formed with gap S (with reference to Fig. 3 and Fig. 4).
Now, in the position corresponding to the gap S between upper fins group 22 and lower fins group 23 separately of the outer wall 13,13 of above-mentioned wind-tunnel housing 10, (such as middle position of upper fins group 22 and lower fins group 23 etc.), is respectively arranged with above-mentioned ventilating opening 130,130.In addition, in the upper end of wind-tunnel housing 10 (direction of ventilation one side), be provided with top fan 2 (the 1st fan), this top fan 2 is configured to and makes cooling air by upper fins group 22.On the other hand, in the bottom of wind-tunnel housing 10 (direction of ventilation opposite side), be provided with bottom fan 3 (the 2nd fan), this bottom fan 3 is configured to and makes cooling air by lower fins group 23.In addition,, between upper fins group 22 and lower fins group 23 in wind-tunnel housing 10, to vacate interval with discontiguous mode each other, be provided with demarcation strip 6 (plate member).In addition, demarcation strip 6 can form integratedly with the lid 14 of radiator base 21, main base 12 or the wind-tunnel housing 10 of radiator 20 etc.Demarcation strip 6 is divided into by above-mentioned wind-tunnel 11 airspace of cooling air and the airspace of the cooling air that bottom fan 3 forms that top fan 2 forms, and above-mentioned ventilating opening 130,130 is divided into respectively to overdraught mouth 130a, 130a and leg space ventilation mouth 130b, 130b.
In the present embodiment, to be configured to the flow direction that makes cooling air be contrary direction each other for top fan 2 and bottom fan 3.Particularly, as shown in Figure 5, top fan 2 is configured to from overdraught mouth 130a, 130a air inlet and in the exhaust of the upper end of wind-tunnel housing 10, be configured to the flow direction (downside is upstream side, and upside is downstream) upward that makes cooling air, makes cooling air by upper fins group 22.On the other hand, bottom fan 3 is configured to from leg space ventilation mouth 130b, 130b air inlet and in the exhaust of the bottom of wind-tunnel housing 10, be configured to and make the flow direction of cooling air (upside is upstream side down, downside is downstream), make cooling air by lower fins group 23.That is, overdraught mouth 130a, 130a become the air inlet of top fan 2, and leg space ventilation mouth 130b, 130b become the air inlet of bottom fan 3.
In addition, the front surface 21b (opposite side surface) at radiator base 21 is closely provided with a plurality of electric components.Power model 36a, 36b, 36c and the diode (led) module 32 of aforementioned body portion 30 are installed at the front surface 21b of radiator base 21 in this embodiment.The caloric value of power model 36a, 36b, 36c heating when energising is larger, and caloric value specific power module 36a, 36b, the 36c of diode (led) module 32 heating when energising are little.As shown in Figure 5, these power models 36a, 36b, 36c and diode (led) module 32 are configured in corresponding with above-mentioned upper fins group 22 in the front surface 21b of radiator base 21 dividually, and (downside is upstream side, upside is downstream) upper area T1 (the 1st region), (upside be upstream side, downside be downstream) the lower area T2 (2nd region) corresponding with above-mentioned lower fins group 23.Particularly, 2 power models in power model 36a, 36b, 36c (this example is power model 36a, 36b) are configured in upper area T1, and 1 power model of residue in power model 36a, 36b, 36c (being power model 36c in this embodiment) and diode (led) module 32 are configured in lower area T2.Now, the summation of caloric value that is configured in power model 36a, the 36b of upper area T1 is greater than the summation that is configured in the power model 36c of lower area T2 and the caloric value of diode (led) module 32.In addition, be configured in power model 36a, the 36b of upper area T1 at the downside (upstream side) of this upper area T1, the direction substantially vertical with above-below direction (direction of ventilation), be on left and right directions abreast configuration.On the other hand, about being configured in power model 36c and the diode (led) module 32 of lower area T2, power model 36c is configured in the upside (upstream side) of this lower area T2, and diode (led) module 32 is configured in the downside (downstream) of this lower area T2 with respect to power model 36c.
Above-mentioned radiator 10 makes the thermal diffusion that is produced and conduct in power model 36a, 36b, 36c and the diode (led) module 32 of the front surface 21b of radiator base 21 by close attachment, utilize fins set 22,23 to dispel the heat, to power model 36a, 36b, 36c and diode (led) module 32, carry out cooling thus.Now, as shown in Figure 4, by making the above-below direction length L 1 of the upper fins group 22 corresponding with above-mentioned upper area T1 (region that the summation of caloric value is larger) form to such an extent that be greater than the above-below direction length L 2 of the lower fins group 23 corresponding with above-mentioned lower area T2 (region that the summation of caloric value is less), thereby be configured to, make the heat dissipation capacity of upper fins group 22 larger than lower fins group 23.
As mentioned above, in the DC-to-AC converter 1 of present embodiment, rear surface 21a at the radiator base 21 of radiator 20 disposes upper fins group 22 and lower fins group 23, at the front surface 21b of radiator base 21, is provided with power model 36a, 36b, 36c and diode (led) module 32.In addition, in the centre position that forms the wind-tunnel housing 10 of wind-tunnel 11, be provided with ventilating opening 130,130, at the both ends up and down of wind-tunnel housing 10, be provided with top fan 2 and bottom fan 3.And then, when top fan 2 and bottom fan 3 drive, utilize top fan 2 to make cooling air by upper fins group 22, utilize bottom fan 3 to make cooling air by lower fins group 23, make power model 36a, 36b, 36c and diode (led) module 32 cooling.
< simulation result >
Herein, with reference to Fig. 7 (a), Fig. 7 (b), the DC-to-AC converter of the comparative example for present embodiment of being undertaken by present inventor etc. and the simulation result about cooling capacity of the DC-to-AC converter 1 of present embodiment are described.Be made as herein and do not consider diode (led) module 32.The DC-to-AC converter 1 of the comparative example shown in Fig. 7 (a) ' in, be with the relatively big difference part of the DC-to-AC converter 1 of present embodiment, only in the upper end of wind-tunnel housing 10, fan 2 is set, in the bottom of wind-tunnel housing 10, there is air inlet 140, outer wall 13,13 at wind-tunnel housing 10 does not have ventilating opening, and radiator 20 only has 1 fins set (not shown).In addition,, in comparative example, power model 36a, 36b, 36c are configured in the region T corresponding with above-mentioned 1 fins set in the front surface 21b of radiator base 21 of radiator.Now, power model 36c is configured in the downside (upstream side) of region T, power model 36a, 36b be with respect to power model 36c, and at the upside (downstream) of region T, being configured in abreast the direction substantially vertical with above-below direction (direction of ventilation) is left and right directions.In such comparative example, the air quantity of the cooling air in wind-tunnel 11 is 1.012[m
3/ min], and the temperature of power model 36a is 142.0 ℃, and the temperature of power model 36b is 143.6 ℃, and the temperature of power model 36c is 123.8 ℃.In the structure of above-mentioned comparative example, for example compare with the situation that configures abreast 2 desk fans at left and right directions, can reduce DC-to-AC converter 1 ' Width size (being reduced to 1 desk fan), but, owing to only with 1 desk fan 2, cooling air being ventilated, so air quantity reduces, cooling capacity declines.In addition,, because power model 36a, 36b, 36c in series configure along direction of ventilation, therefore, because the heat of the power model 36c of upstream side is disturbed, the temperature of power model 36a, the 36b in downstream becomes higher temperature.
On the other hand, in the DC-to-AC converter 1 of the present embodiment shown in Fig. 7 (b), the air quantity of the cooling air of wind-tunnel 11 (the total air quantity of fan 2,3) is 1.888[m
3/ min], and the temperature of power model 36a is 127.6 ℃, and the temperature of power model 36b is 128.6 ℃, and the temperature of power model 36c is 119.5 ℃.That is, the air quantity of the cooling air of wind-tunnel 11 increases approximately 87% than above-mentioned comparative example, and the temperature of power model 36a, 36b, 36c is all lower than above-mentioned comparative example.
The effect > of < execution mode
Known according to above-mentioned simulation result, by being made as the structure of present embodiment, for example compare with the situation that configures abreast 2 desk fans along left and right directions, can significantly reduce the Width size (being reduced to 1 desk fan) of DC-to-AC converter 1, and, owing to using 2 desk fan 2,3 both sides that cooling air is ventilated, therefore can guarantee the air quantity of 2 desk fans.Therefore, can in the situation that not reducing cooling capacity, make the Width compact in size of DC-to-AC converter 1.
In addition, in the present embodiment, be made as the structure that there are 2 fins set 22,23 on the radiator base 21 of radiator 20 forming.Like this, by being made as the base construction forming, can avoid the configuration of power model 36a, 36b, 36c and diode (led) module 32 to be subject to the configurable limit of fins set 22,23, can improve and comprise component configuration and the wiring device design freedom in being wound on.In addition, by being made as the base construction forming, can improve the intensity of DC-to-AC converter 1 integral body, make assembling become easy.
In addition, especially, in the present embodiment, upper fins group 22 and lower fins group 23 configure dividually.Thus, can larger gap S be set in the centre position of upper fins group 22 and lower fins group 23, therefore, the draft loss in the time of can reducing from ventilating opening 130,130 air inlet, can improve intake efficiency.
In addition, especially, in the present embodiment, power model 36a, 36b, 36c and diode (led) module 32 are configured in the upper area T1 corresponding with upper fins group 22, the lower area T2 corresponding with lower fins group 23 dividually.Thus, power model 36a, 36b, 36c and diode (led) module 32 are assigned to 2 region T1, T2, can utilize the cooling air of 2 different systems to carry out respectively cooling.Consequently, can avoid electric component in the such situation about in series configuring with respect to cooling air of above-mentioned comparative example, upstream side to disturb the heat of the electric component in downstream, efficiently cooling power module 36a, 36b, 36c and diode (led) module 32.
In addition, especially, in the present embodiment, power model 36a, 36b are configured in the downside of upper area T1, and power model 36c is configured in the upside of lower area T2.Like this, by larger power model 36a, 36b, the 36c of caloric value is configured in to upstream side, can avoids being configured in the heat of other electric component of the upstream side in the situation in downstream and disturb, efficiently cooling power module 36a, 36b, 36c.
In addition, especially, in the present embodiment, power model 36a, 36b are configured in identical region T1, and configure abreast along left and right directions.Thus, can avoid upstream side in the situation of configured in series and the heat in downstream to disturb, can be evenly and cooling power module 36a, 36b efficiently.
In addition, especially, in the present embodiment, power model 36c and the identical region T2 of diode (led) module 32 configuration, and diode (led) module 32 is configured in the downside of specific power module 36c.Like this, by the less diode (led) module 32 of caloric value being configured in to the downstream of power model 36c, can reduce the impact that heat is disturbed, efficiently cooling power module 36c and diode (led) module 32.
In addition, especially, in the present embodiment, be configured to, the heat dissipation capacity of the upper fins group 22 that the summation of caloric value is larger is greater than the heat dissipation capacity of the lower fins group 23 that the summation of caloric value is less.Particularly, form, the length L 1 of the above-below direction of upper fins group 22 is greater than the length L 2 of the above-below direction of lower fins group 23.; in the situation that power model 36a, 36b, 36c and diode (led) module 32 are configured in to upper area T1 and lower area T2 dividually, the summation of caloric value of power model 36a, 36b that is configured in upper area T1 is different from the summation that is configured in the power model 36c of lower area T2 and the caloric value of diode (led) module 32.Therefore, as present embodiment, according to the caloric value of parts, set the length of fins set, efficiently cooling power module 36a, 36b, 36c and diode (led) module 32.
In addition, especially, in the present embodiment, between the upper fins group 22 in wind-tunnel housing 10 and lower fins group 23, demarcation strip 6 is set.Thus, can prevent the interference (traction) of top fan 2 and bottom fan 3 cooling air separately, therefore, can suppress air quantity and reduce, improve cooling effectiveness.
In addition, especially, in the present embodiment, utilize top fan 2 and bottom fan 3, from ventilating opening 130,130 air inlets, in the exhaust of two ends up and down of wind-tunnel housing 10, make thus cooling air by upper fins group 22 and lower fins group 23.Thus, can eliminate the impact of the miscellaneous equipment that exhaust configures abreast on broad ways, therefore, be particularly suitable for as in this embodiment in dish and miscellaneous equipment configures situation about using abreast.
< variation >
In addition, execution mode is not limited to foregoing, within not departing from the scope of its purport and technological thought, can carry out various distortion.Below, such variation is described successively.
(1) make the contrary situation of flow direction of cooling air
In the above-described embodiment, upward, the flow direction that bottom fan 3 is configured to cooling air, but is not limited to this down to the flow direction that top fan 2 is configured to cooling air.
; in this variation; as shown in Figure 8; top fan 2 is configured to from the upper end air inlet of wind-tunnel housing 10 and at overdraught mouth 130a, 130a exhaust, be configured to and make the flow direction of cooling air (upside is upstream side down; downside is downstream), make cooling air by the upper fins group 22 of above-mentioned radiator 20.On the other hand, bottom fan 3 is configured to from the bottom air inlet of wind-tunnel housing 10 and at leg space ventilation mouth 130b, 130b exhaust, be configured to and make the flow direction of cooling air (downside is upstream side upward, upside is downstream), make cooling air by the lower fins group 23 of above-mentioned radiator 20.That is, overdraught mouth 130a, 130a become the exhaust outlet of top fan 2, and leg space ventilation mouth 130b, 130b become the exhaust outlet of bottom fan 3.
In addition, be configured in power model 36a, the 36b of upper area T1 of corresponding with above-mentioned upper fins group 22 (upside is upstream side, and downside is downstream) at the upside (upstream side) of this upper area T1, along left and right directions, configure abreast.On the other hand, about being configured in, corresponding with above-mentioned lower fins group 23 (downside is upstream side, upside is downstream) power model 36c and the diode (led) module 32 of lower area T2, power model 36c is configured in the downside (upstream side) of this lower area T2, and diode (led) module 32 is configured in the upside (downstream) of this lower area T2 with respect to power model 36c.
Above-mentioned structure in addition in the DC-to-AC converter 1 of this variation is identical with the DC-to-AC converter 1 of above-mentioned execution mode.
In this variation, also can access the effect identical with above-mentioned execution mode.Exist cannot in the situation that the above-below direction exhaust of DC-to-AC converter 1 environmental requirement is set, this variation is effective.
(2) flow direction that is configured to cooling air is the situation of mutually the same direction
In the variation of above-mentioned execution mode and (1), the flow direction that top fan 2 and bottom fan 3 are configured to cooling air is opposite directions, but is not limited to this.As shown in FIG. 9 and 10, also can be configured to the flow direction of cooling air be mutually the same direction for top fan 2 and bottom fan 3.
In the example shown in Fig. 9, top fan 2 be configured to from overdraught mouth 130a, 130a air inlet and in the exhaust of the upper end of wind-tunnel housing 10, (downside is upstream side upward to be configured to the flow direction of cooling air, upside is downstream), make cooling air by the upper fins group 22 of above-mentioned radiator 20.On the other hand, bottom fan 3 is configured to from the bottom air inlet of wind-tunnel housing 10 and at leg space ventilation mouth 130b, 130b exhaust, be configured to and make the flow direction of cooling air (downside is upstream side upward, upside is downstream), make cooling air by the lower fins group 23 of above-mentioned radiator 20.That is, overdraught mouth 130a, 130a become the air inlet of top fan 2, and leg space ventilation mouth 130b, 130b become the exhaust outlet of bottom fan 3.
In addition the power model 36a, the 36b that, are configured in the upper area T1 of corresponding with above-mentioned upper fins group 22 (downside is upstream side, and upside is downstream) configure along left and right directions abreast at the downside (upstream side) of this upper area T1.On the other hand, about being configured in, corresponding with above-mentioned lower fins group 23 (downside is upstream side, upside is downstream) power model 36c and the diode (led) module 32 of lower area T2, power model 36c is configured in the downside (upstream side) of this lower area T2, and diode (led) module 32, with respect to power model 36c, is configured in the upside (downstream) of this lower area T2.
On the other hand, in the example shown in Figure 10, top fan 2 be configured to from the upper end air inlet of wind-tunnel housing 10 and in overdraught mouth 130a, 130a exhaust, (upside is upstream side down to be configured to the flow direction of cooling air, downside is downstream), make cooling air by the upper fins group 22 of above-mentioned radiator 20.On the other hand, bottom fan 3 be configured to from leg space ventilation mouth 130b, 130b air inlet and in the exhaust of the bottom of wind-tunnel housing 10, (upside is upstream side down to be configured to the flow direction of cooling air, downside is downstream), make cooling air by the lower fins group 23 of above-mentioned radiator 20.That is, overdraught mouth 130a, 130a become the exhaust outlet of top fan 2, and leg space ventilation mouth 130b, 130b become the air inlet of bottom fan 3.
In addition, be configured in power model 36a, the 36b of upper area T1 of corresponding with above-mentioned upper fins group 22 (upside is upstream side, and downside is downstream) at the upside (upstream side) of this upper area T1, along left and right directions, configure abreast.On the other hand, about being configured in, corresponding with above-mentioned lower fins group 23 (upside is upstream side, downside is downstream) power model 36c and the diode (led) module 32 of lower area T2, power model 36c is configured in the upside (upstream side) of this lower area T2, and diode (led) module 32, with respect to power model 36c, is configured in the downside (downstream) of this lower area T2.
Above-mentioned structure in addition in the DC-to-AC converter 1 of this variation is identical with the DC-to-AC converter 1 of the variation of above-mentioned execution mode or above-mentioned (1).
In this variation, also can access the effect identical with above-mentioned execution mode.In addition, in this variation, can tackle neatly can be towards the top exhaust of DC-to-AC converter 1 and can not towards below exhaust (Fig. 9) or can be towards below exhaust and can not towards top exhaust (Figure 10) such environmental requirement is set.
(3) between upper fins group and lower fins group, there is the situation of fins set
In the above-described embodiment, upper fins group 22 and lower fins group 23 are configured dividually, but are not limited to this.
; in this variation; as shown in figure 11; radiator 20 has above-mentioned radiator base 21, above-mentioned upper fins group 22, above-mentioned lower fins group 23 and central fins group 24; radiator 20 is arranged on the front side of the main base 12 of above-mentioned wind-tunnel housing 10 by the mode that embeds above-mentioned opening 120 and be accommodated in above-mentioned wind-tunnel 11 with fins set 22,23,24, by bolt etc., be fixed.Central fins group 24 consists of a plurality of fins 240, fin 240 is erected to be arranged on to link the mode of above-mentioned fin 220 and above-mentioned fin 230 between the upper fins group 22 and lower fins group 23 in the rear surface 21a of radiator base 21, and the fore-and-aft direction size of fin 240 is shorter than these fins 220 and fin 230.Central fins group 24 can with upper fins group 22 and 23 splits of lower fins group form, also can form integratedly.In the situation that forming integratedly, by implementing the pars intermedia of each fin to be made as the processing of recess, can form each fins set 22,23,24.Above-mentioned structure in addition in the DC-to-AC converter 1 of this variation is identical with the DC-to-AC converter 1 of above-mentioned execution mode.
In this variation, by central fins group 24 is set, increased the area of dissipation of radiator 20, improved cooling capacity, and by shortening the fore-and-aft direction size of central fins group 24, can the draft loss when from ventilating opening 130 air inlets or exhaust suppress lowlyer.
(4) only configure the situation of 1 power model
In the above-described embodiment, the power model of usining is that situation about consisting of each 3 power model 36a, 36b that arrange accordingly, 36c of exchanging with 3 phases (U, V, W phase) is illustrated as an example, but is not limited to this.
That is, in this variation, substitute above-mentioned 3 power model 36a, 36b, 36c, and have 1 power model 36, this power model 36 is to be that 1 module forms by each the corresponding power module package exchanging with 3 phases (U, V, W phase).And then as shown in figure 12, power model 36 and diode (led) module 32 are configured in above-mentioned upper area T1 and the above-mentioned lower area T2 in the front surface 21b of radiator base 21 dividually.Now, the caloric value that is configured in the power model 36 of upper area T1 is greater than the caloric value of the diode (led) module 32 that is configured in lower area T2.In addition, the power model 36 that is configured in upper area T1 is configured in the downside (upstream side) of this upper area T1, and the diode (led) module 32 that is configured in lower area T2 is configured in the upside (upstream side) of this lower area T2.Above-mentioned structure in addition in the DC-to-AC converter 1 of this variation is identical with the DC-to-AC converter 1 of above-mentioned execution mode.
In this variation, also can access the effect identical with above-mentioned execution mode.
(5) other
Above, take and be illustrated as an example in the situation of the front surface 21b of the radiator base 21 of radiator 20 configuration 3 power model 36a, 36b, 36c or 1 power model 36, but the number of power model is not particularly limited, can be also 6,9 or other number etc.The front surface 21b that yet can be applied at the radiator base 21 of radiator 20 in addition, does not have the situation of allocating power module.
In addition, above, take and be illustrated as an example in the situation of 1 diode (led) module 32 of the front surface 21b of the radiator base 21 of radiator 20 configuration, still, the number of diode (led) module is not particularly limited, and can be also 3 or other number etc.The front surface 21b that yet can be applied at the radiator base 21 of radiator 20 in addition, does not configure the situation of diode (led) module.
In addition, above, take and be illustrated as an example in the front surface 21b allocating power module of radiator base 21 of radiator 20 and the situation of diode (led) module, but, also can substitute these, or on these basis, configure other electric component (such as reactor or smmothing capacitor etc.).
In addition, in the above-described embodiment, take and be configured to not situation about exposing in upper area T1 in the front surface 21b of the radiator base 21 of radiator 20 of power model 36a, 36b, 36c and diode (led) module 32 and lower area T2 be illustrated as an example in this region T1, T2, but be not limited to this.For example, power model 36a, 36b, 36c and diode (led) module 32 also can configure to expose a part of state in region T1, T2.
In addition, above, take by thereby the upper fins group 22 corresponding with upper area T1 that the summation of caloric value the is larger length on above-below direction is formed than less being illustrated as an example than the large situation of this lower fins group 23 with the long heat dissipation capacity that makes of the length of lower fins group 23 corresponding to lower area T2 on above-below direction of the summation of caloric value, but be not limited to this.For example, also can by adjust in the length, interval, thickness, number, material etc. of each fin 220 more than 1, be configured to and make the heat dissipation capacity of upper fins group 22 larger than lower fins group 23.
In addition, above, in the upper end of wind-tunnel housing 10, be provided with 1 top fan 2, in the bottom of wind-tunnel housing 10, be provided with 1 bottom fan 3, but be not limited to this.For example, can a plurality of tops fan be set in the upper end of wind-tunnel housing 10 according to the size of the size of wind-tunnel housing 10 and fan/bottom, top fan, a plurality of bottoms fan is set in the bottom of wind-tunnel housing 10.
In addition, above, in the left and right sides of wind-tunnel housing 10, be provided with ventilating opening 130,130, but be not limited to this, also can only on left side or the right side of wind-tunnel housing 10, ventilating opening 130 be set.
In addition, above, the situation that power inverter is applied to the direct current power to be converted to the DC-to-AC converter 1 of alternating electromotive force is illustrated, and but, power inverter is not limited to this.For example, power inverter also can be applied to from alternating electromotive force be converted to direct current power converter apparatus, from alternating electromotive force, be converted to the converter apparatus (so-called matrix converter apparatus) of alternating electromotive force or power governor etc.
In addition, except having narrated above, also can appropriately combined above-mentioned execution mode and the method for each variation utilize.
In addition, although do not carry out one by one example, above-mentioned execution mode and each variation, within not departing from the scope of its purport, are implemented can increase various changes.
Claims (11)
1. a power inverter, it is changed electric power, it is characterized in that,
This power inverter has:
Radiator, the 1st surperficial fins set and the 2nd fins set that it has pedestal and is configured in a side of described pedestal;
A plurality of electric components, they are arranged on the surface of the opposite side of described pedestal;
Housing, it takes in described the 1st fins set and described the 2nd fins set, forms the wind-tunnel as the airspace of cooling air, in the position corresponding between described the 1st fins set and described the 2nd fins set, has ventilating opening;
The 1st fan, the end that it is arranged on direction of ventilation one side of described housing, is configured to and makes described cooling air by described the 1st fins set; And
The 2nd fan, the end that it is arranged on the direction of ventilation opposite side of described housing, is configured to and makes described cooling air by described the 2nd fins set.
2. power inverter according to claim 1, is characterized in that,
Described the 1st fins set and described the 2nd fins set configure dividually.
3. power inverter according to claim 1 and 2, is characterized in that,
Described a plurality of electric component is configured in 1st region corresponding with described the 1st fins set in the surface of described opposite side of described pedestal and 2nd region corresponding with described the 2nd fins set dividually.
4. power inverter according to claim 3, is characterized in that,
1 the 1st above electric component of the upstream side that described a plurality of electric component comprises the flow direction that is configured in the described cooling air in described the 1st region or described the 2nd region.
5. power inverter according to claim 4, is characterized in that,
Described a plurality of electric component comprises a plurality of described the 1st electric components,
A plurality of described the 1st electric components in the situation that be configured in described the 1st region or described the 2nd region in arbitrary same area, in the direction vertical with described direction of ventilation abreast configuration.
6. according to the power inverter described in claim 4 or 5, it is characterized in that,
Described a plurality of electric component also comprises the 2nd electric component that caloric value is less than described the 1st electric component,
In the situation that described the 1st electric component and described the 2nd electric component are configured in the arbitrary same area in described the 1st region or described the 2nd region, described the 2nd electric component is configured in the downstream of described flow direction with respect to described the 1st electric component.
7. according to the power inverter described in any one in claim 3～6, it is characterized in that,
Described the 1st fins set and described the 2nd fins set are configured to: in the situation that be configured in the summation that the summation of the caloric value of the electric component in the region of any one party in described the 1st region and described the 2nd region is greater than the caloric value of the electric component in the region that is configured in the opposing party, the heat dissipation capacity of the fins set that a side's larger with the summation of described caloric value region is corresponding is greater than the heat dissipation capacity of fins set corresponding to a side's less with the summation of described caloric value region.
8. power inverter according to claim 7, is characterized in that,
The length of fins set corresponding to a side's larger with the summation of described caloric value region in described direction of ventilation forms and is greater than the length of fins set corresponding to a side's less with the summation of described caloric value region in described direction of ventilation.
9. according to the power inverter described in any one in claim 1～8, it is characterized in that,
Described power inverter also has plate member, this plate member is arranged between described the 1st fins set and described the 2nd fins set in described housing, and described wind-tunnel is divided into the airspace of described cooling air and the airspace of the described cooling air that described the 2nd fan forms that described the 1st fan forms.
10. power inverter according to claim 9, is characterized in that,
The flow direction that described the 1st fan and described the 2nd fan are configured to described cooling air is opposite directions,
Described plate member is divided into the two air inlet or exhaust outlet of described the 1st fan and described the 2nd fan by described ventilating opening.
11. power inverters according to claim 9, is characterized in that,
The flow direction that described the 1st fan and described the 2nd fan are configured to described cooling air is mutually the same direction,
Described plate member is divided into the air inlet of the side in described the 1st fan and described the 2nd fan and the exhaust outlet of the opposing party in described the 1st fan and described the 2nd fan by described ventilating opening.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-097817 | 2013-05-07 | ||
| JP2013097817A JP5787105B2 (en) | 2013-05-07 | 2013-05-07 | Power converter |
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| Publication Number | Publication Date |
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| CN203840187U true CN203840187U (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420225663.9U Expired - Fee Related CN203840187U (en) | 2013-05-07 | 2014-05-05 | Electric power converter |
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| CN (1) | CN203840187U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130362A (en) * | 2015-05-07 | 2016-11-16 | 株式会社日立制作所 | Power-converting device and rail truck |
| CN107947536A (en) * | 2017-12-25 | 2018-04-20 | 北京天诚同创电气有限公司 | A kind of three phase power module |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200494468Y1 (en) | 2017-02-23 | 2021-10-18 | 엘에스일렉트릭(주) | Cooling system using modular cooling apparatus |
| JP6889021B2 (en) * | 2017-04-24 | 2021-06-18 | 株式会社キューヘン | Power converter and static power compensator using power converter |
| WO2024079846A1 (en) * | 2022-10-13 | 2024-04-18 | 三菱電機株式会社 | Power semiconductor device and method for manufacturing power semiconductor device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3071024U (en) * | 2000-02-15 | 2000-08-22 | 有限会社 ピー・エム・シー | Heat sink device |
| JP4496491B2 (en) * | 2006-03-16 | 2010-07-07 | 株式会社安川電機 | Electronics |
-
2013
- 2013-05-07 JP JP2013097817A patent/JP5787105B2/en not_active Expired - Fee Related
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130362A (en) * | 2015-05-07 | 2016-11-16 | 株式会社日立制作所 | Power-converting device and rail truck |
| CN106130362B (en) * | 2015-05-07 | 2019-06-04 | 株式会社日立制作所 | Power-converting device and rail truck |
| CN107947536A (en) * | 2017-12-25 | 2018-04-20 | 北京天诚同创电气有限公司 | A kind of three phase power module |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5787105B2 (en) | 2015-09-30 |
| JP2014220334A (en) | 2014-11-20 |
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