CN218730916U - Double-sided heat radiation structure of double single tube IGBT group in converter - Google Patents
Double-sided heat radiation structure of double single tube IGBT group in converter Download PDFInfo
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- CN218730916U CN218730916U CN202222964575.8U CN202222964575U CN218730916U CN 218730916 U CN218730916 U CN 218730916U CN 202222964575 U CN202222964575 U CN 202222964575U CN 218730916 U CN218730916 U CN 218730916U
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Abstract
The utility model discloses a double-sided heat dissipation structure of a double-row single-tube IGBT group in a frequency converter, wherein each single-tube IGBT is set as the double-row single-tube IGBT group; the IGBT heat exchanger comprises a cooling fan, an intermediate radiator and two main radiators arranged back to back, wherein an installation channel is formed between the two main radiators, and each single IGBT in each row is arranged in the installation channel; the double-row single-tube IGBT group and the two main radiators are respectively arranged in a one-to-one mode, and each single-tube IGBT is installed on the corresponding main radiator through an insulating heat-conducting gasket; the intermediate radiator is arranged between the double rows of single-tube IGBT groups, and the intermediate radiator is respectively in contact fit with the second side surface of each single-tube IGBT and the two main radiators; the cooling fan is arranged outside one end of the mounting channel and is arranged in the air supply range of the intermediate radiator and the two main radiators. The utility model provides the high single tube IGBT's that double was arranged heat dispersion for the radiating rate ensures that single tube IGBT keeps at suitable temperature.
Description
Technical Field
The utility model relates to a converter technical field, more specifically say and relate to a double-sided heat radiation structure of double single tube IGBT group in converter.
Background
The frequency converter is a power control device which applies a frequency conversion technology and a microelectronic technology and controls an alternating current motor by changing the frequency mode of a working power supply of the motor, and mainly comprises a rectifying unit, a filtering unit, an inverting unit, a braking unit, a driving unit, a detection unit and a microprocessing unit; the components and parts used by the existing inverter unit are IGBT modules, single-tube IGBT modules are often used in the IGBT modules, each single-tube IGBT module comprises a power board and a plurality of single-tube IGBTs installed on the power board, 6-7 single-tube IGBTs are arranged on each IGBT module of the conventional frequency converter, each single-tube IGBT is divided into two rows of single-tube IGBT groups, and each single-tube IGBT in the two rows is installed on the power board in sequence along the length direction, namely the single-tube IGBTs are arranged in two rows, and the two rows are respectively radiated in the aspect of radiating, so that radiating is facilitated, and the two rows are more suitable for high-power frequency converters, for example, the frequency converters with the power within the range of 0.1-11 KW.
However, the heat dissipation of each single-tube IGBT in the existing double-row arranged single-tube IGBT group is single-sided heat dissipation, as shown in fig. 1-2, each single-tube IGBT 1a in each group of single-tube IGBTs is sequentially arranged along the length direction of the frequency converter housing 2a, each single-tube IGBT 1a is respectively provided with a first side surface and a second side surface, the first side surface of each single-tube IGBT 1a is respectively embedded with a heat dissipation metal sheet 11a, and each second side surface is respectively an insulating surface; the heat dissipation structure of the double-row single-tube IGBT group is that a radiator 3a and the double-row single-tube IGBT group are installed inside a frequency converter shell 2a of the frequency converter, the radiator 3a is installed between the two rows of single-tube IGBT groups, the first side face of each single-tube IGBT in the two rows of single-tube IGBT groups is installed on the radiator 3a through an insulating heat conduction gasket 4a, a cooling fan 5a is installed outside one end of each single-tube IGBT group, and the radiator 3a and each single-tube IGBT 1a are located in the air supply range of the cooling fan 5 a.
In this way, the heat dissipated by each single-tube IGBT 1a is transferred to the radiator 3a, and the cooling fan 5a blows air against the radiator 3a and each single-tube IGBT 1a to blow the heat out of the inverter housing 2a to perform the heat dissipation function, but because each single-tube IGBT 1a can only dissipate heat in a single surface, the heat dissipation efficiency is low, and particularly under the condition that the power current of the single-tube IGBT is higher and higher, the heat dissipation performance of the existing single-tube IGBT cannot be satisfied.
In view of the above, the present application has made intensive studies and resulted in the present invention.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a double-sided heat radiation structure of double single tube IGBT group in converter, it can improve double single tube IGBT's of arranging heat dispersion for the radiating rate reduces the temperature of double single tube IGBT group of arranging.
In order to achieve the above purpose, the utility model discloses a solution is:
a double-sided heat dissipation structure of a double-row single tube IGBT group in a frequency converter is arranged inside a frequency converter shell of the frequency converter and used for dissipating heat of each single tube IGBT, each single tube IGBT is divided into the double-row single tube IGBT group, each single tube IGBT is provided with a first side face and a second side face, and each first side face is embedded with a heat dissipation metal sheet; the single-tube IGBT heat radiator comprises a cooling fan, an intermediate radiator and two main radiators arranged back to back, wherein a mounting channel is formed between the two main radiators, and each single-tube IGBT in each row is arranged in the mounting channel along the length direction; the double rows of single-tube IGBT groups and the two main radiators are respectively arranged in a one-to-one manner, and the first side surfaces of the single-tube IGBTs in each row are respectively installed on the corresponding main radiators through insulating heat-conducting gaskets; the intermediate radiator is arranged between the double rows of the single tube IGBT groups, the second side surface of each single tube IGBT is respectively in contact fit with the intermediate radiator, and the intermediate radiator is also respectively in contact fit with the two main radiators; the cooling fan is positioned outside one end of the mounting channel, and the cooling fan is positioned in the air supply range of the intermediate radiator and the two main radiators.
The intermediate radiator is a copper radiator made of copper materials, and the two main radiators are aluminum radiators made of aluminum materials.
The section of the middle radiator is T-shaped, the middle radiator comprises a middle heat-conducting plate and a plurality of middle radiating blades, and each middle radiating blade is connected to the middle heat-conducting plate respectively.
The middle heat conduction plate is arranged between the two rows of the single-tube IGBTs, and the second side surface of each single-tube IGBT is respectively in contact fit with the middle heat conduction plate; the two main radiators are respectively arranged opposite to the surfaces of the middle radiating blades close to the middle radiators, and the two main radiators are respectively in contact fit with the corresponding middle radiating blades through heat-conducting silica gel layers.
And heat-conducting silica gel layers are respectively arranged between the second side surfaces of the single-tube IGBTs and the middle heat-conducting plate.
The two main radiators respectively comprise a main heat-dissipating plate and a plurality of main heat-dissipating blades, the two main heat-dissipating plates are arranged oppositely, and each main heat-dissipating blade in each main radiator is respectively connected to the main heat-dissipating plate.
The two main heat guide plates are respectively provided with a plurality of first mounting holes along the length direction, the shell of the frequency converter is provided with second mounting holes corresponding to the positions of the first mounting holes, and mounting screws are inserted into the first mounting holes and the second mounting holes which correspond to each other.
The middle heat conducting plate is provided with a plurality of third mounting holes, single tube through holes are respectively formed in each single tube IGBT in the double-row single tube IGBT group, each single tube through hole corresponds to each other in pairs, the two main heat conducting plates are respectively provided with a plurality of fourth mounting holes, and each fourth mounting hole corresponds to each other in pairs; each third mounting hole is respectively positioned on the same axis with the two single pipe through holes corresponding to each other and the two fourth mounting holes corresponding to each other; mounting screws are inserted into the third mounting hole, the two single pipe through holes and the two fourth mounting holes which are all positioned on the same axis.
The cooling fan is positioned in the middle of the two main radiators.
After the structure is adopted, the utility model discloses following beneficial effect has:
1. the utility model discloses a first side at double single tube IGBT group sets up main radiator respectively, radiator in the middle of double single tube IGBT inter block sets up, the heat that makes each single tube IGBT produce partly transmits middle radiator, another part passes to on two main radiators, this part heat that transmits the radiator transmits again on two main radiators, more do benefit to each single tube IGBT heat dissipation, combine cooling fan simultaneously, cooling fan's mobile air current is outside discharge rapidly on with two main radiators, thereby improve each single tube IGBT's heat dispersion, and the radiating rate is improved, in order to reduce the temperature of double single tube IGBT group temperature of arranging rapidly.
2. The setting of copper radiator and aluminium radiator, because the heat conductivility of copper radiator is superior to aluminium radiator, the heat of two sets of single tube IGBT groups is derived downwards to each radiator fin of copper radiator, and the heat of two sets of single tube IGBT groups is derived to the large tracts of land in the area promptly, contacts with two radiators afterwards, recycles aluminium radiator's high heat dissipating to dispel the heat, does benefit to the heat dissipation more.
3. The utility model discloses the setting on well heat conduction silicone grease layer to fill the clearance between each single tube IGBT's the second side and the middle radiator, in order to reach and reduce the thermal resistance, more do benefit to heat conduction and heat dissipation.
4. And a heat-conducting silica gel layer is arranged between the corresponding radiating blades of the intermediate radiator and the two main radiators respectively, so that heat on the intermediate radiator is better transferred to the two main radiators, and the heat radiation is facilitated.
5. The cooling fan is arranged in the middle of the two main radiators, and the middle radiator is located in the middle of the two main radiators, so that flowing air flow of the cooling fan is evenly distributed to the two radiators, the two radiators are guaranteed to keep the same heat dissipation speed, and the overall temperature of each single-tube IGBT is guaranteed.
Drawings
FIG. 1 is a schematic diagram of a heat dissipation structure in the prior art;
FIG. 2 is a schematic view of another angle of a heat dissipation structure in the prior art;
fig. 3 is a front view of the present invention;
fig. 4 is a side view of the present invention;
fig. 5 is a side view of another angle of the present invention.
In the figure:
1 a-single-tube IGBT; 11 a-heat sink metal sheet;
2 a-a frequency converter housing; 3 a-a heat sink;
4 a-insulating heat-conducting gasket; 5 a-a cooling fan;
1-single-tube IGBT; 11-insulating heat conducting gasket;
2-a frequency converter housing; 3-a cooling fan;
4-an intermediate heat sink; 41-intermediate heat-conducting plate;
42-intermediate cooling fins; 5-main radiator;
51-main heat-conducting plate; 52-primary heat sink;
6, installing a channel; 71-mounting screws;
72-single tube through hole; 73-mounting screws;
81-heat conducting silica gel layer.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.
A double-sided heat dissipation structure of a double-row single-tube IGBT set in a frequency converter is used for dissipating heat of a plurality of single-tube IGBT1, each single-tube IGBT1 is a single-tube IGBT sold on the market at present, each single-tube IGBT1 is divided into two rows of single-tube IGBT sets, the two groups of single-tube IGBT sets are arranged side by side, each single-tube IGBT on each row of single-tube IGBT sets is arranged on a driving power board of a conventional frequency converter along the length direction, each conventional single-tube IGBT1 is provided with three pins, and the three pins of each single-tube IGBT1 are welded on the driving power board respectively to form a conventional IGBT module at present, and the conventional IGBT module can be an existing conventional IGBT power module or other modules formed by adopting single-tube IGBTs.
Further, the single-tube IGBTs have the same structure, so that taking one of the single-tube IGBTs as an example for explanation, the conventional single-tube IGBT is provided with a first side surface and a second side surface, the first side surface of the single-tube IGBT1 is embedded with a heat dissipation metal sheet, the heat dissipation metal sheet is an existing conventional conductive metal sheet, and the second side surface of the single-tube IGBT1 is a fully insulating surface. In the present embodiment, 6 to 7 single-tube IGBTs are used, and the present embodiment is described by taking 7 single-tube IGBTs as an example, wherein six single-tube IGBTs are respectively arranged in pairs opposite to each other, and the second sides of the single-tube IGBTs arranged in pairs opposite to each other are arranged face to face.
The utility model discloses install in the inside of the converter shell 2 of conventional converter, including cooling fan 3, middle radiator 4 and two main radiators 5 of back to back arrangement, be formed with installation passageway 6 between two main radiators 5, two rows of single tube IGBT groups set up in installation passageway 6 along length direction respectively, and two rows of single tube IGBT groups and two main radiators 5 one by one respectively set up, the first side of each single tube IGBT1 in two rows of single tube IGBT groups contacts the cooperation through insulating heat conduction gasket 11 and the side of corresponding main radiator 5 respectively; the middle radiator 4 is arranged between the two rows of single-tube IGBT groups, the second side surface of each single-tube IGBT is respectively in contact fit with the corresponding side surface of the middle radiator 4, and the middle radiator 4 is also respectively in contact fit with the two main radiators 5, so that each single-tube IGBT transmits one part of heat to the two main radiators 5, and the other part of heat is transmitted to the middle radiator and is then dispersed to the two main radiators 5 through the middle radiator; the cooling fan 3 is located outside one end of the installation passage 11, and the cooling fan 3 is located in the air blowing range of the intermediate radiator 4 and the two main radiators 5.
For the convenience of description, with the utility model discloses position when installing in converter shell 2 does the utility model discloses a reference direction, fig. 3 does promptly the utility model discloses state during the installation to cooling fan 3 place is down, and the position that deviates from cooling fan is last.
Specifically, the two main heat sinks 5 have the same structure, so that the description will be given by taking one of the two main heat sinks as an example, the heat sink includes a main heat-conducting plate 51 and a plurality of main heat-radiating fins 52, each main heat-radiating fin 52 is respectively disposed on the main heat-conducting plate 51, each main heat-radiating fin 52 is arranged along a direction away from the main heat-conducting plate 51, and the main heat-conducting plate 51 and each main heat-radiating fin 52 are both integrally formed; the main heat conducting plates 51 of the two radiators 5 are respectively arranged oppositely, the mutually facing sides of the two main heat conducting plates 51 are taken as matching sides, the first side surfaces of the single-tube IGBTs 1 are respectively covered with insulating heat conducting gaskets 11, and the insulating heat conducting gaskets 11 are respectively in contact matching with the matching sides of the corresponding main heat conducting plates 51, so that the single-tube IGBTs 1 conduct heat to the corresponding main radiators 5, but the single-tube IGBTs 1 do not conduct heat to the main radiators 5.
Furthermore, two main radiators 5 are respectively and fixedly installed inside the frequency converter housing 2, and the installation structures of the two main radiators are the same, so that the description will be given by taking one main radiator 5 as an example; a plurality of first mounting holes are respectively formed in the bottom of a main heat guide plate 51 on a main heat radiator 5 along the length direction, the first mounting holes are respectively and uniformly arranged at intervals, second mounting holes are formed in the bottom of a frequency converter shell 2 corresponding to the positions of the first mounting holes, and mounting screws 71 are inserted between the first mounting holes and the second mounting holes which correspond to each other, wherein each first mounting hole and each second mounting hole are flat holes, or each first mounting hole is a threaded hole matched with the corresponding mounting screw; in addition, the main radiator 5 can be mounted inside the frequency converter housing 2 by other conventional mounting structures. During installation, the installation screws are sequentially screwed into the corresponding first installation holes and the second installation holes, and the main radiator 5 can be fixedly installed in the frequency converter shell 2.
The section of the intermediate heat sink 4 is T-shaped, that is, the intermediate heat sink 4 includes an intermediate heat conducting plate 41 and a plurality of intermediate heat dissipating fins 42, each intermediate heat dissipating fin 42 is fixedly connected to the bottom of the intermediate heat conducting plate 41, in this embodiment, the intermediate heat conducting plate 41 and each intermediate heat dissipating fin 42 are an integral connecting structure; the middle heat conducting plate 41 is arranged between the two rows of single-tube IGBT groups, and each middle radiating blade 42 is positioned at the lower side of the two rows of single-tube IGBT groups; the intermediate radiating fin 42 closest to the main radiator 5 among the intermediate radiating fins 42 is used as a contact fin, and the two contact fins are respectively in contact fit with the corresponding main radiating plate 51. In this way, the second side of each single-tube IGBT transfers heat to the middle heat-conducting plate 41, and the middle heat-conducting plate 51 transfers heat downward to each middle heat-dissipating fin 42, that is, transfers heat downward to a large area, and transfers heat to both sides through each middle heat-dissipating fin 42 to transfer heat to the two main heat sinks 5, thereby realizing rapid heat dissipation.
Preferably, a heat-conducting silica gel layer 81 is arranged between each of the two heat-dissipating blades and the corresponding matching side of the main heat-dissipating plate 51, and both the two heat-conducting silica gel layers are coated on the two heat-dissipating blades by using conventional heat-conducting silicone grease and form the heat-conducting silica gel layer 81; in this way, the heat-conducting silica gel layer 81 is used to fill the gaps between the two heat-dissipating blades and the corresponding main heat-dissipating plate 51, so as to reduce the thermal resistance, thereby facilitating the heat conduction and heat dissipation of each intermediate heat-dissipating blade 42.
Further, middle radiator 4 and two main radiators 5 are installed each other to be fixed in the inside of converter shell 2, three's mounting structure is: the middle heat conducting plate 41 is provided with a plurality of third mounting holes along the length direction, each single-tube IGBT in the double-row single-tube IGBT group is respectively provided with a plurality of single-tube through holes 72, each single-tube through hole 72 corresponds to each other in pairs, each two main heat conducting plates 51 are respectively provided with a plurality of fourth mounting holes, each four mounting hole on each two main heat conducting plates 51 corresponds to each other in pairs, each third mounting hole is respectively positioned on the same axis with the two corresponding single-tube through holes and the two corresponding fourth mounting holes, and mounting screws 73 are inserted into the third mounting hole, the two single-tube through holes 72 and the two fourth mounting holes which are positioned on the same axis; in this embodiment, each of the third mounting holes and each of the fourth mounting holes are flat holes, or each of the third mounting holes and each of the fourth mounting holes are threaded holes adapted to the mounting bolts 73. During installation, each third installation hole is respectively positioned on the same axis with the two corresponding single-tube through holes 72 and the two corresponding fourth installation holes, and then the installation screws 73 are sequentially screwed into the fourth installation hole, the single-tube through hole and the third installation hole on the corresponding side and the single-tube through hole and the fourth installation hole on the other side.
Preferably, a heat-conducting silicone layer is respectively arranged between the second side surface of each single-tube IGBT1 and the matching side of the two main heat-conducting plates 51, and each heat-conducting silicone layer is a heat-conducting silicone layer formed by coating conventional heat-conducting silicone grease on the second side surface of the single-tube IGBT 1; in this way, the heat-conducting silica gel layer is used to fill the gaps between the second side surfaces of the single-tube IGBTs 1 and the main heat-conducting plate 51 of the main heat radiator 5, so as to reduce the thermal resistance, thereby being more beneficial to the heat conduction of each single-tube IGBT1 and the heat radiation of the main heat radiator 5.
Preferably, the third mounting holes of the intermediate heat sink 4 are respectively located in the middle or middle-upper portion of the intermediate heat conducting plate 41 to make the mounting position lean upward, thereby ensuring the stability of the single-tube IGBT1 structure.
Preferably, in the present embodiment, the two main radiators 5 are both aluminum radiators made of conventional aluminum materials, and the intermediate radiator 4 is a copper radiator made of conventional copper materials; because the heat conductivility of copper radiator is greater than the aluminium radiator, the heat dispersion of aluminium radiator is greater than the copper radiator, like this, do benefit to the heat of each single tube IGBT 1's second side and lead to in each middle radiator fin 42 downwards, accelerate the heat of each single tube IGBT 1's second side to lead to the region of large tracts of land downwards promptly, recycle the high thermal diffusivity of aluminium radiator and dispel the heat, in order to improve the utility model discloses a heat dispersion.
Further, the cooling fan 3 is located at the lower side of the inside of the frequency converter housing 2 and located at the middle position of the two main radiators 5, that is, the middle radiator 4 is located at the middle position of the cooling fan 3, so that when the cooling fan 3 operates, the heat of the first side surface of each single-tube IGBT1 is radiated by the two main radiators 5, the heat of the second side surface of each single-tube IGBT1 is transmitted to the middle radiator 4, the middle radiator 4 is then dispersed on the main radiators 5 for radiation, and meanwhile, the flowing air flow of the cooling fan 2 is averagely distributed to the middle radiator 4 and the two main radiators 5, so that the radiation of the middle radiator 4 and the two main radiators 5 is accelerated, and the flowing air flow of the cooling fan 2 is transmitted to the installation channel 6, so as to further radiate and cool each single-tube IGBT 1; in the present embodiment, the cooling fan 2 is a fan used in the interior of a conventional inverter. It should be noted that, in the conventional frequency converter casing, an air outlet is conventionally provided on the upper side of the frequency converter casing, and a cold-end air supply outlet is conventionally provided on the lower side of the frequency converter casing, so that the cooling fan 2 supplies heat of the radiator to the outside of the frequency converter casing from the air outlet.
The utility model relates to a double-sided heat radiation structure of double single tube IGBT group in converter, when the converter is worked, cooling fan starts thereupon, and each single tube IGBT generates heat gradually in the work, and each single tube IGBT transmits heat to both sides and middle respectively, namely each single tube IGBT transmits heat to middle radiator 4 and two main radiators 5 respectively, combines the cooperation of cooling fan 3, accelerates the heat dissipation of single tube IGBT, and makes two radiators radiate heat to the outside of converter shell 2; compared with the prior art, the utility model discloses a double single tube IGBT group adopts the double-sided heat dissipation, has improved single tube IGBT's heat dispersion for the radiating rate ensures that single tube IGBT keeps in the preference temperature, also in the powerful single tube IGBT of adaptation simultaneously.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made within the scope of the claims of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. A double-sided heat dissipation structure of a double-row single-tube IGBT (insulated gate bipolar translator) group in a frequency converter is arranged inside a shell of the frequency converter and used for dissipating heat of each single-tube IGBT, each single-tube IGBT is divided into the double-row single-tube IGBT group, each single-tube IGBT is provided with a first side face and a second side face, and each first side face is respectively embedded with a heat dissipation metal sheet; the method is characterized in that: the single-tube IGBT heat radiator comprises a cooling fan, an intermediate radiator and two main radiators arranged back to back, wherein a mounting channel is formed between the two main radiators, and each single-tube IGBT in each row is arranged in the mounting channel along the length direction; the double rows of single-tube IGBT groups and the two main radiators are respectively arranged in a one-to-one manner, and the first side surfaces of the single-tube IGBTs in each row are respectively installed on the corresponding main radiators through insulating heat-conducting gaskets; the intermediate radiator is arranged between the two rows of the single-tube IGBT groups, the second side surface of each single-tube IGBT is respectively in contact fit with the intermediate radiator, and the intermediate radiator is also respectively in contact fit with the two main radiators; the cooling fan is positioned outside one end of the mounting channel, and the cooling fan is positioned in the air supply range of the intermediate radiator and the two main radiators.
2. The double-sided heat dissipation structure of the double-row single-tube IGBT group in the frequency converter according to claim 1, characterized in that: the intermediate radiator is a copper radiator made of copper materials, and the two main radiators are aluminum radiators made of aluminum materials.
3. The double-sided heat dissipation structure of the double-row single-tube IGBT group in the frequency converter according to claim 1 or 2, characterized in that: the section of the middle radiator is T-shaped, the middle radiator comprises a middle heat-conducting plate and a plurality of middle radiating blades, and each middle radiating blade is connected to the middle heat-conducting plate respectively.
4. The double-sided heat dissipation structure of the double-row single-tube IGBT group in the frequency converter as claimed in claim 3, characterized in that: the middle heat conducting plate is arranged between the double rows of the single-tube IGBTs,
the second side surface of each single-tube IGBT is respectively in contact fit with the middle heat-conducting plate; the two main radiators are respectively arranged opposite to the surfaces of the middle radiating blades close to the middle radiators, and the two main radiators are respectively in contact fit with the corresponding middle radiating blades through heat-conducting silica gel layers.
5. The double-sided heat dissipation structure of the double-row single-tube IGBT group in the frequency converter as claimed in claim 3, characterized in that: and heat-conducting silica gel layers are respectively arranged between the second side surfaces of the single-tube IGBTs and the middle heat-conducting plate.
6. The double-sided heat dissipation structure of the double-row single-tube IGBT group in the frequency converter as claimed in claim 3, characterized in that: the two main radiators respectively comprise a main heat-dissipating plate and a plurality of main heat-dissipating blades, the two main heat-dissipating plates are arranged oppositely, and each main heat-dissipating blade in each main radiator is respectively connected to the main heat-dissipating plate.
7. The double-sided heat dissipation structure of the double-row single-tube IGBT group in the frequency converter as claimed in claim 6, characterized in that: the two main heat guide plates are respectively provided with a plurality of first mounting holes along the length direction, the shell of the frequency converter is provided with second mounting holes corresponding to the positions of the first mounting holes, and mounting screws are inserted into the first mounting holes and the second mounting holes which correspond to each other.
8. The double-sided heat dissipation structure of the double-row single-tube IGBT group in the frequency converter according to claim 7, characterized in that: the middle heat conducting plate is provided with a plurality of third mounting holes, single tube through holes are respectively formed in each single tube IGBT in the double-row single tube IGBT group, each single tube through hole corresponds to each other in pairs, the two main heat conducting plates are respectively provided with a plurality of fourth mounting holes, and each fourth mounting hole corresponds to each other in pairs; each third mounting hole is respectively positioned on the same axis with the two single pipe through holes corresponding to each other and the two fourth mounting holes corresponding to each other; mounting screws are inserted into the third mounting hole, the two single pipe through holes and the two fourth mounting holes which are all positioned on the same axis.
9. The double-sided heat dissipation structure of the double-row single-tube IGBT group in the frequency converter as claimed in claim 6, characterized in that: the cooling fan is positioned in the middle of the two main radiators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222964575.8U CN218730916U (en) | 2022-11-04 | 2022-11-04 | Double-sided heat radiation structure of double single tube IGBT group in converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222964575.8U CN218730916U (en) | 2022-11-04 | 2022-11-04 | Double-sided heat radiation structure of double single tube IGBT group in converter |
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|---|---|
| CN218730916U true CN218730916U (en) | 2023-03-24 |
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| CN202222964575.8U Active CN218730916U (en) | 2022-11-04 | 2022-11-04 | Double-sided heat radiation structure of double single tube IGBT group in converter |
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| Country | Link |
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| CN (1) | CN218730916U (en) |
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- 2022-11-04 CN CN202222964575.8U patent/CN218730916U/en active Active
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