CN213341984U - Heat dissipation dustproof construction of converter - Google Patents
Heat dissipation dustproof construction of converter Download PDFInfo
- Publication number
- CN213341984U CN213341984U CN202022243978.4U CN202022243978U CN213341984U CN 213341984 U CN213341984 U CN 213341984U CN 202022243978 U CN202022243978 U CN 202022243978U CN 213341984 U CN213341984 U CN 213341984U
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- frequency converter
- mounting plate
- heat
- plate
- heat dissipation
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Abstract
The utility model relates to a heat dissipation dustproof structure of a frequency converter, which comprises a frequency converter case; the P + and N-terminals of the frequency converter case are connected to the main circuit of the brake unit; the rectifier bridge comprises a first mounting plate and a second mounting plate, wherein the first mounting plate is used for supporting a driving plate and a rectifier bridge; a heat-conducting plate is arranged between the first mounting plate and the second mounting plate; a radiator is arranged on the second mounting plate; the radiator is connected with the heat conducting plate through the first heat conducting copper column; a reactor installation cavity is formed in the bottom of the second installation plate; and a second heat-conducting copper column is arranged between the reactor mounting cavity and the second mounting plate. The utility model discloses in through connect the second mounting panel at first installation rear side to be separated by radiator and electrical components through the heat-conducting plate, radiator reactor installation cavity is all in independent wind channel simultaneously, and outside dust only can exist in the wind channel when first fan subassembly upwards blast air heat dissipation, can not enter into electrical components, guarantees that converter working property is stable, long service life.
Description
Technical Field
The utility model relates to a converter, concretely relates to heat dissipation dustproof construction of converter belongs to frequency conversion control technical field.
Background
The frequency converter is generally in the comparatively abominable service scene of environment, and dust, steam in the environment in case get into inside the frequency converter, will influence its job stabilization nature. In order to make the performance of the frequency converter more stable and the heat dissipation effect better, the heat dissipation structure is usually connected with a heating device in the frequency converter, however, problems are caused, in the prior art, in order to ensure the heat dissipation performance inside the case, the heat sink is often adopted for ventilation, but in the ventilation process of the heat sink, the heat sink is often in direct contact with an electrical component, and external dust is easily brought into the case to cause the short circuit of the electrical component, and therefore, the frequency converter needs to be further improved.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at overcoming the defect among the prior art, provide a heat dissipation dustproof construction of converter, simple structure is reasonable, and is dustproof effectual, and the radiating effect is good, long service life, the fault rate is low.
In order to achieve the above object, the utility model provides a heat dissipation dustproof structure of a frequency converter, which comprises a frequency converter case; the P + and N-terminals of the frequency converter case are connected to a main circuit of the brake unit; the rectifier bridge comprises a first mounting plate and a second mounting plate, wherein the first mounting plate is used for supporting a driving plate and a rectifier bridge; a heat-conducting plate is arranged between the first mounting plate and the second mounting plate; a radiator is arranged on the second mounting plate; the radiator is connected with the heat conducting plate through the first heat conducting copper column; a reactor installation cavity is formed in the bottom of the second installation plate; a first heat-conducting copper column is arranged between the reactor mounting cavity and the second mounting plate; the inner side of the bottom of the frequency converter case is modularly provided with a first fan assembly.
Preferably, the bottoms of the first mounting plate and the second mounting plate are provided with air ducts; the reactor installation cavity is positioned in the air duct; the reactor installation cavity is located on the upper side of the first fan assembly.
The air duct is independent from the electrical components on the inner side of the first mounting plate, and dust brought in from the outside cannot be attached to the electrical components.
Preferably, the upper end of the air duct is connected to the bottom of the second mounting plate; the lower end of the air duct is arranged on the outer side of the fan assembly; and an isolation cavity is arranged in the reactor installation cavity.
The wind current will pass through the reactor chamber while dissipating heat from the direct current reactor.
Preferably, a wiring port is arranged between the isolation cavity and the reactor installation cavity; a direct current reactor is arranged in the reactor mounting cavity; and a passive filter is arranged in the isolation cavity.
Harmonic effects are suppressed by passive filters and dc reactors.
Preferably, the bottom end of the second heat-conducting copper column is connected to the upper side wall of the reactor installation chamber.
Preferably, a second fan assembly is modularly arranged on the side part of the frequency converter case; the air duct extends upwards to the second fan assembly from the second mounting plate.
Preferably, the first fan assembly is a positive pressure fan; the second fan component is a negative pressure fan; the second fan assembly further comprises an air outlet embedded in the side wall of the frequency converter case.
The utility model discloses in, through connecting the second mounting panel at first installation rear side to be separated by radiator and electrical components through the heat-conducting plate, radiator reactor installation cavity is all in independent wind channel simultaneously, and when first fan subassembly during the heat dissipation of blowing up, outside dust only can be present in the wind channel, and can not enter into electrical components, guarantees that converter working property is stable, long service life.
Drawings
Fig. 1 is a schematic view of the assembly structure of the present invention.
Fig. 2 is a schematic sectional view of the present invention.
Fig. 3 is a top view of the present invention.
Fig. 4 is a bottom view of the present invention.
Fig. 5 is a schematic view of the internal structure of the present invention.
In the figure, 1 is a frequency converter case, 2 is a first mounting plate, 3 is a second mounting plate, 4 is a heat conducting plate, 5 is a radiator, 6 is a first heat conducting copper column, 7 is a reactor mounting cavity, 7.1 is an isolation cavity, 8 is a second heat conducting copper column, 9 is a first fan component, 10 is an air duct, 11 is a second fan component, 12 is an output wiring guard ring, and 13 is an input wiring guard ring.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and obviously, the described embodiments are only a part of the embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
Terms used herein, including technical and scientific terms, have the same meaning as terms commonly understood by one of ordinary skill in the art, unless otherwise defined. It will be understood that terms defined in commonly used dictionaries have meanings that are consistent with their meanings in the prior art
Referring to fig. 1-2, a heat dissipation and dust prevention structure of a frequency converter comprises a frequency converter case 1; the P + and N-terminals of the frequency converter case 1 are connected to a main circuit of the brake unit; the rectifier bridge comprises a first mounting plate 2 for supporting a driving plate and a rectifier bridge, and a second mounting plate 3 is arranged in the extending direction of the first mounting plate 2; a first heat-conducting plate 4 is arranged between the first mounting plate 3 and the second mounting plate 2; the second mounting plate 3 is provided with a radiator 5; the radiator 5 is connected with the heat conducting plate 4 through a first heat conducting copper column 6; a reactor mounting cavity 7 is arranged at the bottom of the second mounting plate 3; a second heat-conducting copper column 8 is arranged between the reactor mounting cavity 7 and the second mounting plate 2; the inner side of the bottom of the frequency converter case 1 is modularly provided with a first fan component 9.
Furthermore, the bottoms of the first mounting plate 2 and the second mounting plate 3 are provided with an air duct 10; the reactor installation cavity 7 is positioned in the air duct 10; the reactor installation cavity 7 is positioned on the upper side of the first fan assembly 9.
Specifically, in this embodiment, the air duct 10 is vertically disposed in the frequency converter case 1, and the first fan assembly, the radiator, the reactor mounting cavity 7, and the second fan assembly are all located in the air duct, so that when the first fan assembly blows air inwards, if external dust enters, the dust will only remain in the air duct 10 and will not attach to the electrical component.
Meanwhile, the radiator is in contact with the heat conducting plate through the first heat conducting copper column, the first heat conducting copper column penetrates through the side wall of the air duct, and the heat conducting plate is used for absorbing heat generated by electrical elements and capacitors.
Further, the upper end of the air duct 10 is connected to the bottom of the second mounting plate 3; the lower end of the air duct 10 is arranged on the outer side of the first fan assembly 9; and an isolation cavity 7.1 is arranged in the reactor mounting cavity 7.
Furthermore, a wiring port is arranged between the isolation cavity 7.1 and the reactor installation cavity 7; a direct current reactor is arranged in the reactor mounting cavity; and a passive filter is arranged in the isolation cavity.
Further, the bottom end of the second heat-conducting copper column 8 is connected to the upper side wall of the reactor installation chamber 7.
Further, a second fan assembly 11 is modularly arranged on the side of the frequency converter case 1; the air duct extends upwards from the second mounting plate 2 to the second fan assembly 11.
Specifically, in this embodiment, the second fan assembly 11 is used for drawing air outwards through negative pressure, so as to further increase the speed of the hot air flowing outwards.
Further, the first fan assembly 9 is a positive pressure fan; the second fan assembly 11 is a negative pressure fan; the second fan assembly 11 further comprises an air outlet embedded in the side wall of the frequency converter case 1.
Further, the frequency converter case 1 is provided with a wiring port, and an output wiring grommet 12 and an input wiring grommet 13 are provided at the wiring port.
Finally, the above embodiments are only intended to illustrate the technical solution of the present invention and not to limit the same, although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced with other equivalent solutions without departing from the spirit and scope of the present invention, which should be covered by the claims of the present invention.
Claims (8)
1. A heat dissipation dustproof structure of a frequency converter comprises a frequency converter case; the P + and N-terminals of the frequency converter case are connected to a main circuit of the brake unit; a first mounting panel for supporting drive plate and rectifier bridge characterized in that: a second mounting plate is arranged in the extending direction of the first mounting plate; a heat-conducting plate is arranged between the first mounting plate and the second mounting plate; a radiator is arranged on the second mounting plate; the radiator is connected with the heat conducting plate through the first heat conducting copper column; a reactor installation cavity is formed in the bottom of the second installation plate; a second heat-conducting copper column is arranged between the reactor mounting cavity and the second mounting plate; the inner side of the bottom of the frequency converter case is modularly provided with a first fan assembly.
2. The heat dissipation dustproof structure of the frequency converter according to claim 1, characterized in that: the bottoms of the first mounting plate and the second mounting plate are provided with air ducts; the reactor installation cavity is positioned in the air duct; the reactor installation cavity is located on the upper side of the first fan assembly.
3. The heat dissipation dustproof structure of the frequency converter according to claim 2, characterized in that: the upper end of the air duct is connected to the bottom of the second mounting plate; the lower end of the air duct is arranged on the outer side of the fan assembly; and an isolation cavity is arranged in the reactor installation cavity.
4. The heat dissipation dustproof structure of the frequency converter according to claim 3, characterized in that: a wiring port is arranged between the isolation cavity and the reactor installation cavity; a direct current reactor is arranged in the reactor mounting cavity; and a passive filter is arranged in the isolation cavity.
5. The heat dissipation dustproof structure of the frequency converter according to claim 4, characterized in that: and the bottom end of the second heat-conducting copper column is connected to the upper side wall of the reactor installation cavity.
6. The heat dissipation dustproof structure of the frequency converter according to claim 2, characterized in that: the side part of the frequency converter case is modularly provided with a second fan assembly; the air duct extends upwards to the second fan assembly from the second mounting plate.
7. The heat dissipation dustproof structure of the frequency converter according to claim 6, characterized in that: the first fan assembly is a positive pressure fan; the second fan component is a negative pressure fan; the second fan assembly further comprises an air outlet embedded in the side wall of the frequency converter case.
8. The heat dissipation dustproof structure of the frequency converter according to claim 1, characterized in that: the frequency converter case is provided with a wiring port, and an input wiring guard ring and an output wiring guard ring are arranged at the wiring port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022243978.4U CN213341984U (en) | 2020-10-10 | 2020-10-10 | Heat dissipation dustproof construction of converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022243978.4U CN213341984U (en) | 2020-10-10 | 2020-10-10 | Heat dissipation dustproof construction of converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213341984U true CN213341984U (en) | 2021-06-01 |
Family
ID=76071282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022243978.4U Expired - Fee Related CN213341984U (en) | 2020-10-10 | 2020-10-10 | Heat dissipation dustproof construction of converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213341984U (en) |
-
2020
- 2020-10-10 CN CN202022243978.4U patent/CN213341984U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210601 Termination date: 20211010 |
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| CF01 | Termination of patent right due to non-payment of annual fee |