CN220776381U - Heat dissipation ventilation structure of frequency converter and frequency converter - Google Patents
Heat dissipation ventilation structure of frequency converter and frequency converter Download PDFInfo
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- CN220776381U CN220776381U CN202322496337.3U CN202322496337U CN220776381U CN 220776381 U CN220776381 U CN 220776381U CN 202322496337 U CN202322496337 U CN 202322496337U CN 220776381 U CN220776381 U CN 220776381U
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- 238000009423 ventilation Methods 0.000 title claims description 13
- 230000017525 heat dissipation Effects 0.000 title description 20
- 238000005452 bending Methods 0.000 claims description 11
- 239000003990 capacitor Substances 0.000 claims description 11
- 238000012423 maintenance Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 8
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000011257 shell material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a radiating and ventilating structure of a frequency converter and the frequency converter, wherein the radiating and ventilating structure of the frequency converter comprises a cabinet wall plate, a mounting plate, a fan, a power module and a radiator; the mounting plate and the cabinet wall plate enclose a cavity together, the top of the cavity is covered with an air deflector, the bottom of the cavity is covered with a wind deflector, and the cabinet wall plate is provided with an air outlet and an air inlet; the fan is arranged in the cavity so that air in the external environment enters the cavity through the air inlet and flows upwards and is discharged through the air outlet; the radiator is arranged in the cavity and between the fan and the air inlet, the radiator comprises a radiating base and a plurality of radiating fins connected to the radiating base, the power module is arranged on one side of the mounting plate, which is away from the wall plate of the cabinet, and is arranged outside the cavity, and the power module is matched with the radiating base in a heat conduction mode. The utility model reduces the failure rate of the fan, prolongs the service life of the fan and reduces the temperature rise of the power module.
Description
Technical Field
The utility model relates to the technical field of frequency converters, in particular to a heat dissipation and ventilation structure of a frequency converter and the frequency converter.
Background
The frequency converter is control equipment of an elevator system, and an alternating current motor is controlled by changing the working power frequency of a motor in the elevator by applying a frequency conversion technology and a microelectronic technology, so that the operation of an elevator traction machine is controlled, and therefore, the frequency converter is important equipment of the elevator system and is one of important indexes for measuring the reliable operation of the elevator.
The frequency converter of the elevator system is usually arranged in the elevator control cabinet and comprises a shell, a radiator, a power module, a driving plate, a fan and the like, the conventional frequency converter is generally provided with a power module with larger power, the heat productivity is higher, and the radiator and the fan are matched with a heat dissipation air duct in the interior to carry out forced air cooling so that the temperature in the frequency converter is in a range where electronic devices can normally work; based on the premise of simplifying the structural design of an air duct, the air duct of a frequency converter used in the existing elevator system is usually a vertical air duct with lower air inlet and upper air outlet, so that an air outlet at the top of the frequency converter is of an open structure, and objects are easy to fall off and enter a fan through the open air outlet of the frequency converter due to elevator construction or well, machine room decoration and other operations, so that the fan is blocked or damaged; in addition, when the fan is in the working process, air flow with higher temperature inside the control cabinet is sucked from the bottom of the control cabinet, the heat dissipation efficiency is lower, air with lower temperature in the external environment of the control cabinet is difficult to suck effectively, the temperature of the air which exchanges heat with the radiator is relatively higher, the radiator is difficult to timely radiate heat generated by the working of the power module to the external environment, the power module works in the higher temperature environment for a long time, and the service life of the power module is relatively lower.
Disclosure of Invention
The utility model provides a heat dissipation and ventilation structure of a frequency converter, which is used for solving the problems that a fan of the frequency converter of an elevator system in the prior art is easily damaged by falling objects and has low heat dissipation efficiency.
The second objective of the present utility model is to provide a frequency converter.
In order to achieve the first purpose, the utility model adopts the following technical scheme:
the radiating and ventilating structure of the frequency converter comprises a cabinet wall plate, a mounting plate, a fan, a power module and a radiator;
the mounting plate is positioned on the inner side of the cabinet wall plate and forms a cavity which extends up and down together with the cabinet wall plate, the top of the cavity is covered with an air deflector, the bottom of the cavity is covered with a wind shield, the position of the cabinet wall plate, which is positioned on the lower edge of the air deflector, is provided with an air outlet which is communicated with the cavity, and the position of the cabinet wall plate, which is positioned on the upper edge of the wind shield, is provided with an air inlet which is communicated with the cavity; the fan is arranged in the cavity so that air in the external environment enters the cavity through the air inlet and flows upwards and is discharged through the air outlet;
the radiator is arranged in the cavity and between the fan and the air inlet, the radiator comprises a radiating base and a plurality of radiating fins connected to the radiating base, the power module is arranged on one side of the mounting plate, which is away from the wall plate of the cabinet, and is arranged outside the cavity, and the power module is matched with the radiating base in a heat conduction mode.
Preferably, a manhole is formed in a part of the mounting plate opposite to the fan, a cover plate is covered at the manhole, and the cover plate is detachably connected with the mounting plate.
Preferably, a connecting edge is respectively arranged at the positions of the two sides of the access hole on the mounting plate, and two sides of the cover plate are respectively connected to the two connecting edges through bolts.
Preferably, the cover plate protrudes out of one side of the mounting plate, which is away from the cabinet wall plate, a driving plate positioned below the mounting plate is arranged on one side of the mounting plate, which is away from the cabinet wall plate, four connecting columns are arranged on the mounting plate, and four end corners of the driving plate are fixed on the four connecting columns through bolts; the pin of the power module is connected to the driving plate, the driving plate is provided with a bus capacitor, and the mounting plate is provided with an avoidance through groove for the bus capacitor to pass through.
Preferably, an avoidance hole is formed in the mounting plate, the heat dissipation base is arranged on the inner side of the avoidance hole, a heat conducting surface is formed on the part, opposite to the avoidance hole, of the heat dissipation base, the power module is embedded in the avoidance hole and is abutted to the heat conducting surface of the heat dissipation base, the heat dissipation fins are located on one side, deviating from the heat conducting surface, of the heat dissipation base, and a guide gap extending up and down is formed between the adjacent heat dissipation fins.
Preferably, a fan mounting plate is arranged in the cavity, the fan mounting plate is transversely arranged in the cavity and positioned below the air outlet, the fan is arranged on the fan mounting plate, and a vent hole opposite to the fan is arranged on the fan mounting plate.
Preferably, the bottom edge of the cover plate is provided with a supporting edge bent towards the cabinet wall plate, and the fan mounting plate is arranged above the supporting edge and fixedly connected with the cover plate.
Preferably, the air deflector is gradually inclined downwards from one side close to the air outlet to one side far away from the air outlet.
Preferably, the mounting plate comprises an inner wall opposite to the cabinet wall plate, and two side walls respectively formed by bending two sides of the inner wall, wherein one side of the side wall, far away from the inner wall, is fixedly connected to the cabinet wall plate.
In order to achieve the second purpose, the utility model adopts the following technical scheme:
the frequency converter comprises the heat dissipation and ventilation structure of the frequency converter.
The utility model has the beneficial effects that:
according to the utility model, the mounting plate and the cabinet wall plate are used for enclosing an up-and-down extending cavity, the top of the cavity is covered with the air deflector, so that the top surface of an air duct formed by the cavity is closed, falling objects are prevented from entering the fan, the failure rate of the fan is reduced, and the service life of the fan is prolonged; in addition, because the air shield is covered at the bottom of the cavity, air with lower external temperature enters the cavity through the side face of the wall plate of the cabinet, the air is prevented from being influenced by heating elements inside the cabinet when entering from the bottom of the cabinet, and the low-temperature air entering the cavity can be timely subjected to heat exchange with the radiator, so that heat generated by the operation of the power module is quickly taken away, the temperature rise of the power module is reduced, and the service life of the power module is prolonged. In addition, because the air is introduced from the side surface, a sealing plate is not required to be arranged at the bottom of the cabinet, and an air channel is formed by using the mounting plate and the cabinet backboard, so that the shell material is saved, and the cost is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the mounting plate of FIG. 1;
FIG. 3 is a schematic diagram illustrating an assembly of the mounting plate and the cabinet wall of FIG. 1;
FIG. 4 is a schematic view of the structure of the interior of the chamber of the present utility model;
FIG. 5 is a schematic diagram illustrating the assembly of the cover plate and the fan mounting plate according to the present utility model;
fig. 6 is a schematic structural view of the air deflector in fig. 1.
Detailed Description
The utility model is further described below with reference to the drawings and detailed description:
as shown in fig. 1, 2, 3, 4, 5 and 6, the heat dissipation and ventilation structure of the frequency converter is used for controlling the operation of the elevator traction machine, the heat dissipation and ventilation structure of the frequency converter comprises a cabinet wall plate 10, a mounting plate 20, a fan 40, a power module 70 and a radiator 50, wherein the cabinet wall plate 10 can be a plate on the back side of the cabinet or plates on two sides of the cabinet, namely, in the utility model, the cabinet wall plate 10 is a plate structure around the cabinet except for cabinet doors, in a preferred embodiment, the cabinet wall plate 10 is a plate opposite to the cabinet back side, the mounting plate 20 is positioned on the inner side of the cabinet wall plate 10 and is arranged at a certain distance from the cabinet wall plate 10 after being fixedly matched with the cabinet wall plate 10, thus, the mounting plate 20 and the cabinet wall plate 10 jointly enclose a cavity with an open top and a wind deflector 30 and a plate 80 are covered on the bottom of the cavity top in a sealing way; the wind deflector 30 may be fixed to the mounting plate 20 or the cabinet wall 10, or may be fixed to both the mounting plate 20 and the cabinet wall 10, so that the top of the chamber is completely shielded, and the wind deflector 80 may be fixed to the mounting plate 20 and/or the cabinet wall 10 to seal the bottom of the chamber.
The fan 40 is arranged in the cavity and below the air deflector 30, the fan 40 and the air deflector 30 are arranged at a certain distance from top to bottom, and the fan 40 is used for guiding air in the cavity from bottom to top when being started; the cabinet wall plate 10 is provided with an air outlet 12, the air outlet 12 is communicated with the top of the cavity, the air outlet 12 is positioned at the lower edge of the air deflector 30, so that the air outlet 12 is positioned between the air deflector 30 and the fan 40, namely, an air outlet area is formed in the area between the fan 40 and the air deflector 30 in the cavity, the air outlet 12 is formed in the position, opposite to the air outlet area, of the cabinet wall plate 10, the air outlet can be formed by a plurality of strip holes arranged on the cabinet wall plate 10, the width size of each strip hole is smaller than 12.5mm, and the steel wire protective net can be omitted while the requirements of safety protection are met.
An air inlet 11 is arranged at the bottom of the cabinet wall plate 10 and communicated with the bottom of the cavity, and the air inlet 11 is positioned at the upper edge of the wind shield 80. When the fan 40 works, the air in the external environment enters the bottom of the chamber from the air inlet 11, is guided by the fan 40, enters the air outlet area, and finally is guided by the air deflector 30 to be discharged to the external environment from the cabinet wall plate 10 through the air outlet 12.
The radiator 50 is disposed in the chamber and between the fan 40 and the air inlet 11, the bottom edge of the radiator 50 is not lower than the upper edge of the air inlet 11, so that air with relatively low temperature entering from the air inlet 11 in the external environment can be fully heat-exchanged with the radiator 50 when the fan 40 is led upwards, the radiator 50 comprises a radiating base 51 and a plurality of radiating fins 52 connected to the radiating base 51, the power module 70 is disposed on one side of the mounting plate 20, which is away from the cabinet wall plate 10, and the power module 70 is disposed outside the chamber, meanwhile, the power module 70 is matched with the radiating base 51 in a heat conduction manner, namely, heat of the power module 70 can be transferred to the radiating base 51, the fan 40 exchanges heat with the radiating fins after the external low-temperature air is introduced into the chamber, and the air current takes away the heat generated by the power module 70 and discharges the heat to the external environment through the air outlet 12 under the conduction of the fan 40.
The fan 40 is installed at a position in the chamber close to the air outlet 12, so that after a negative pressure environment is generated in the chamber, external air can flow from bottom to top and finally be discharged through the air outlet 12 after entering the chamber through the air inlet 11, in other embodiments, the installation position of the fan 40 is not necessarily installed at a position close to the air outlet 12 as described above, in fact, the fan is arranged at other positions in the chamber, under the action of the fan, the air in the external environment can enter the chamber through the air inlet 11, and can be discharged through the air outlet 12 after flowing from bottom to top in the chamber, for example, the fan 40 can be started, the low-temperature air in the external environment is introduced into the chamber, after the positive pressure environment is formed in the chamber, the air flow in the chamber flows from bottom to top, and the hot air after heat exchange between the air flow and the radiator 50 flows upward and is discharged through the air outlet 12.
In the scheme of the utility model, the mounting plate 20 and the cabinet wall plate 10 are utilized to enclose a cavity extending up and down, the air deflector 30 is covered at the top of the cavity, so that the top surface of an air duct formed by the cavity is closed, falling objects are prevented from entering the fan 40, the failure rate of the fan 40 is reduced, and the service life of the fan 40 is prolonged; in addition, because the wind shield 80 is covered at the bottom of the cavity, air with lower external temperature enters the cavity through the side face of the cabinet wall plate 10, the influence of heating elements in the cabinet is avoided when the air enters from the bottom of the cabinet, and the low-temperature air entering the cavity can timely exchange heat with the radiator, so that heat generated by the operation of the power module 70 is quickly taken away, the temperature rise of the power module 70 is reduced, and the service life of the power module is prolonged. In addition, because the air is introduced from the side surface, a sealing plate is not required to be arranged at the bottom of the cabinet, and an air channel is formed by using the mounting plate 20 and the cabinet backboard 10, so that the shell material is saved, and the cost is reduced.
In a preferred embodiment, the mounting plate 20 includes an inner wall 21 and two side walls 22, the inner wall 21 is parallel to the cabinet wall 10 and spaced apart from the inner wall 21, the two side walls 22 are preferably perpendicular to the inner wall 21, the two side walls 22 are respectively formed by bending two sides of the inner wall 21, specifically, a plate is selected, the two sides are respectively bent to form a structure with a U-shaped cross section, one side of the two side walls 22 away from the inner wall 21 is fixedly connected to the cabinet wall 10, for example, a flange 221 is bent at one side of the two side walls 22 away from the inner wall 21, bolt holes are formed in the flange 221, bolt holes are formed in corresponding positions of the cabinet wall 10, the mounting plate 20 is fixedly connected with the cabinet wall 10 by using bolts passing through the flange 211 and the bolt holes in the cabinet wall 10, and then the cabinet wall 10 are surrounded by the inner wall 21, the two side walls 22 and the cabinet wall 10.
A manhole 23 is formed in a portion of the inner wall 21 of the mounting plate 10 opposite to the fan 40, and a cover plate 24 is sealed at the manhole 23, and the cover plate 24 is detachably connected to the mounting plate 20. In the utility model, the cabinet wall plate 10 is preferably a plate on the back of the cabinet, so the cabinet wall plate 10 is opposite to the cabinet door of the cabinet, the inner wall 21 is provided with the overhaul hole 23, when the fan is overhauled, the cabinet door is opened, the cover plate 24 is positioned on the front of an operator, and thus, the operator overhauls and replaces the fan 40 opposite to the overhaul hole 23 after detaching the cover plate 24 with a larger operation space during overhauling.
The cover plate 24 may be detachably fixed to the mounting plate 20 by means of bolting, for example, a connecting edge 231 may be respectively disposed on the mounting plate 20 at positions on two sides of the manhole, two sides of the cover plate 24 respectively lean against the two connecting edges 231, and the cover plate 24 is fixed to the mounting plate 20 by using bolts through the cover plate 24 and the connecting edges 231, and the cover plate 24 can be opened by removing the bolts during maintenance. The manhole 23 may be formed on the inner wall 21 by a punching process, and the connection sides 231 are formed by bending portions reserved at both sides of the manhole 23 to be parallel to the inner wall 21 and ensuring that both sides of the cover plate 24 are lap-fitted thereto. The connecting edge 231 may be formed by bending a portion of the side wall 22 reserved during blanking, that is, the manhole 23 extends from one side to the other side of the inner wall 21, so as to increase the size of the manhole 23 and further increase the operation space during maintenance.
In order to facilitate the installation of the fan 40 at the position of the lower edge of the air outlet 12 in the cavity and facilitate the maintenance of the fan 40 from the maintenance hole 23, a fan installation plate 41 is disposed in the cavity, two sides and inner sides of the fan installation plate 41 are respectively attached to two side walls 22 of the installation plate 20 and the cabinet wall plate 10, the fan 40 is installed on the fan installation plate 41, and a vent hole opposite to the fan is disposed on the fan installation plate 41, and more than two fans may be installed on the fan installation plate 41. During servicing, the fan 40 may be serviced by opening the cover plate 24.
In order to further facilitate maintenance, the fan mounting plate 41 may be directly fixed on the cover plate 24, after the cover plate 24 is detached from the mounting plate 20, the fan mounting plate 41 and the fan 40 thereon may be directly taken out from the maintenance hole 23 for maintenance, specifically, the cover plate 24 is configured in an L-shaped structure, a support edge 241 bending toward the cabinet wall plate 10 is provided at the bottom of the cover plate, a downward bending edge is provided at the outer side of the fan mounting plate 41, the bending edge abuts against the inner side of the cover plate 24 and is placed above the support edge, the bending edge is fixed with the cover plate 24 through rivet connection, so that the cover plate 24 and the fan mounting plate 41 are connected and fixed together, and when maintenance is performed, the fan mounting plate 41 may be taken out from the maintenance hole 23 together with the cover plate 24 after the cover plate 24 is detached from the mounting plate 20.
In another preferred embodiment, the cover plate 24 protrudes from the side of the inner wall 21 of the mounting plate 20 facing away from the cabinet wall 10, i.e. after the cover plate 24 is mounted on the inner wall 21, a boss structure is formed on the side of the inner wall 21 facing away from the cabinet wall 10, and the connecting edges 231 for connecting the cover plate 24 may be configured to be convex, so that two sides of the cover plate 24 form the boss structure protruding from the inner wall 21 after being connected to the two connecting edges 231, and the protruding cover plate 24 is easier to be detached during maintenance.
A driving plate 60 is arranged on one side of the inner wall 21 of the mounting plate 20, which is away from the cabinet wall plate 10, the driving plate 60 is positioned below the cover plate 24 protruding relative to the inner wall 21, four connecting columns 26 are convexly arranged on the inner wall 21 of the mounting plate 20, and four end corners of the driving plate 60 are respectively fixed on the four connecting columns 26 through bolts; the pin of the power module 70 is connected to the driving board 60, the surface of the power module 70 opposite to the pin faces the cavity, the driving board 60 is provided with a bus capacitor 61, the inner wall 21 of the mounting board 20 is provided with a avoidance through groove 27 for the bus capacitor 61 to pass through, the bus capacitor 61 passes through the avoidance through groove 27, at least part of the bus capacitor 61 is arranged in the cavity, part of heat generated during operation of the bus capacitor 61 can be taken away by air flow in the cavity, and in order to more reasonably utilize the space, a plurality of bus capacitors 61 on the driving board 60 can be arranged in a row, and a strip-shaped avoidance through groove 27 is arranged at the position of the side of the inner wall 21 of the mounting board 20, so that the part of the bus capacitor 61 penetrating into the cavity is positioned at the side of the cavity.
Because the cover plate 24 is arranged above the driving plate 60, the fan module composed of the fan 40 and the fan mounting plate 41 is positioned above the driving plate 60, and the wires of the fan 40 can pass through the threading holes 242 on the cover plate 24 and then be connected with the driving plate; meanwhile, the fan module is staggered with the driving plate 60 in the height direction, so that the thickness dimension of the frequency converter is only determined by the thickness of the driving plate 60, the power module 70 and the radiator 50, and the influence of the fan module dimension is avoided, thereby being beneficial to the utilization of the internal space of the frequency converter and the miniaturization design of the frequency converter.
In order to ensure that the radiator 50 is positioned in the cavity and the power module is positioned outside the cavity, the inner wall 21 of the mounting plate 20 is provided with the avoidance hole 25, the radiating base 51 is positioned at the inner side of the avoidance hole 25, the radiating base 51 is in a square platy structure, four end corners of the radiating base 51 are respectively fixedly connected with the inner wall 21, the parts of the radiating base 51 opposite to the avoidance hole 25 form a heat conducting surface, the power module 70 is embedded in the avoidance hole 25 and then is abutted against the heat conducting surface of the radiating base 51, so that the power module 70 is well bonded with the radiating base 51 and can enable heat to be well transferred between the power module and the heat conducting surface, the power module 70 can be fixed on the radiating base 51 through screws, the radiating fins 52 are positioned at one side of the radiating base 51 deviating from the heat conducting surface, and the guide gaps 53 which extend up and down for air to flow are formed between the adjacent radiating fins 52; the heat generated by the operation of the power module 70 is transferred to the heat dissipation fins 52 via the heat dissipation base 51, and meanwhile, the air entering the chamber via the air inlet 11 enters into the flow guide gaps between the heat dissipation fins 52 upwards to exchange heat with the heat dissipation fins 52. The relief hole 25 is located in the middle of the inner wall 21 so that the radiator 50 is located as far as possible in the middle in the transverse direction of the chamber.
In the present utility model, in order to enable the fan 40 to better drain and enable the hot air in the cavity to be better discharged from the air outlet 12, the air deflector 30 may be configured to have an inclined structure, specifically, the air deflector 30 is gradually inclined downwards from the side close to the air outlet 12 to the side far from the air outlet 12, and the inclined air deflector 30 can better cover the top of the cavity, prevent the falling object from entering the cavity to damage the fan, and simultaneously guide the hot air to be rapidly discharged from the air outlet 12. The air deflector 30 may be connected to the mounting plate 20 in an assembled manner, specifically, two sides of the air deflector 30 are respectively provided with a bending edge 31, the two bending edges 31 are respectively connected to two side walls 22 of the mounting plate 20 by screws, and the air deflector 30 may also be integrally formed on the mounting plate 30. The wind deflector 80 may be assembled to the mounting plate 20 by screw connection or integrally formed with the mounting plate 20, similar to the wind deflector 30.
The frequency converter comprises the radiating and ventilating structure of the frequency converter, and other structures of the frequency converter are not described in detail herein.
The foregoing is merely a preferred embodiment of the utility model, which has been described in further detail in connection with specific preferred embodiments thereof, and it is not intended that the utility model be limited to these embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The radiating and ventilating structure of the frequency converter is characterized by comprising a cabinet wall plate, a mounting plate, a fan, a power module and a radiator;
the mounting plate is positioned on the inner side of the cabinet wall plate and forms a cavity which extends up and down together with the cabinet wall plate, the top of the cavity is covered with an air deflector, the bottom of the cavity is covered with a wind shield, the position of the cabinet wall plate, which is positioned on the lower edge of the air deflector, is provided with an air outlet which is communicated with the cavity, and the position of the cabinet wall plate, which is positioned on the upper edge of the wind shield, is provided with an air inlet which is communicated with the cavity; the fan is arranged in the cavity so that air in the external environment enters the cavity through the air inlet and flows upwards and is discharged through the air outlet;
the radiator is arranged in the cavity and between the fan and the air inlet, the radiator comprises a radiating base and a plurality of radiating fins connected to the radiating base, the power module is arranged on one side of the mounting plate, which is away from the wall plate of the cabinet, and is arranged outside the cavity, and the power module is matched with the radiating base in a heat conduction mode.
2. The structure of claim 1, wherein the portion of the mounting plate opposite to the fan is provided with a manhole, and the manhole is covered with a cover plate, and the cover plate is detachably connected to the mounting plate.
3. The heat and ventilation structure of a frequency converter as claimed in claim 2, wherein a connection edge is provided on the mounting plate at two sides of the manhole, and two sides of the cover plate are connected to the two connection edges through bolts, respectively.
4. The heat and ventilation structure of a frequency converter according to claim 2, wherein the cover plate protrudes from a side of the mounting plate away from the cabinet wall plate, a driving plate positioned below the mounting plate is arranged on a side of the mounting plate away from the cabinet wall plate, four connecting columns are arranged on the mounting plate, and four end corners of the driving plate are respectively fixed on the four connecting columns through bolts; the pin of the power module is connected to the driving plate, the driving plate is provided with a bus capacitor, and the mounting plate is provided with an avoidance through groove for the bus capacitor to pass through.
5. The heat-dissipating and ventilating structure of a frequency converter as set forth in claim 4, wherein a vent hole is provided in the mounting plate, the heat-dissipating base is disposed at an inner side of the vent hole, a heat-conducting surface is formed at a portion of the heat-dissipating base opposite to the vent hole, the power module is embedded in the vent hole and is abutted against the heat-conducting surface of the heat-dissipating base, the heat-dissipating fins are disposed at a side of the heat-dissipating base away from the heat-conducting surface, and a flow-guiding gap extending up and down is formed between the adjacent heat-dissipating fins.
6. The heat and ventilation structure of a frequency converter as claimed in claim 2, wherein a fan mounting plate is disposed in the chamber, the fan mounting plate is horizontally disposed in the chamber and below the air outlet, the fan is mounted on the fan mounting plate, and a ventilation hole opposite to the fan is disposed on the fan mounting plate.
7. The heat and ventilation structure of claim 6, wherein a bottom edge of the cover plate is provided with a supporting edge bent toward the cabinet wall plate, and the fan mounting plate is disposed above the supporting edge and fixedly connected to the cover plate.
8. The heat dissipating and ventilating structure of a frequency converter as set forth in claim 1, wherein the air deflector is gradually inclined downward from a side closer to the air outlet toward a side farther from the air outlet.
9. The structure of claim 1, wherein the mounting plate comprises an inner wall opposite to the cabinet wall plate, two side walls respectively formed by bending two sides of the inner wall, and one side of the side wall away from the inner wall is fixedly connected to the cabinet wall plate.
10. A frequency converter, characterized by comprising a heat dissipating ventilation structure of a frequency converter according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322496337.3U CN220776381U (en) | 2023-09-13 | 2023-09-13 | Heat dissipation ventilation structure of frequency converter and frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322496337.3U CN220776381U (en) | 2023-09-13 | 2023-09-13 | Heat dissipation ventilation structure of frequency converter and frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220776381U true CN220776381U (en) | 2024-04-12 |
Family
ID=90604132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322496337.3U Active CN220776381U (en) | 2023-09-13 | 2023-09-13 | Heat dissipation ventilation structure of frequency converter and frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220776381U (en) |
-
2023
- 2023-09-13 CN CN202322496337.3U patent/CN220776381U/en active Active
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