CN210629337U - Heat radiation structure of frequency converter - Google Patents
Heat radiation structure of frequency converter Download PDFInfo
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- CN210629337U CN210629337U CN201921603437.9U CN201921603437U CN210629337U CN 210629337 U CN210629337 U CN 210629337U CN 201921603437 U CN201921603437 U CN 201921603437U CN 210629337 U CN210629337 U CN 210629337U
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Abstract
The utility model discloses a heat radiation structure of converter, wherein, heat radiation structure of converter includes: the air duct component is arranged inside the frequency converter main body, the frequency converter main body is provided with a first air inlet and a first air outlet which are communicated with the air duct component, and a first heat dissipation fan is arranged at the first air inlet; and the cabinet body, the converter main part is located the cabinet is internal, at least one second air intake and an at least second air outlet have been seted up to the cabinet body, the second air intake with first air intake intercommunication, the second air outlet with first air outlet intercommunication, second air outlet department is equipped with second cooling fan, converter main part during operation, first cooling fan is with outside air certainly the second air intake inhales first air intake, behind the wind channel part, second cooling fan flows in the second air outlet with the air from first air outlet and discharges. The utility model discloses the heat radiation structure radiating efficiency of converter is high, long service life.
Description
Technical Field
The utility model relates to a converter heat dissipation technical field, in particular to heat radiation structure of converter.
Background
The frequency converter has the outstanding advantages of energy conservation, comfort increase, process flow improvement and the like, is widely used in industrial production, but the problem of heat generation of the high-power frequency converter is always a headache problem. Most of present converter cabinet manufacturing enterprises in the heat dissipation design in large-scale converter cabinet wind channel, mostly set up a plurality of radiator fan in converter inside, because fan itself also can generate heat when the heat dissipation for these high-power converters often have ventilation cooling unsmooth, the temperature is on the high side, excess temperature tripping operation phenomenon when the field usage, what come along is that the inside plate of converter is ageing easily, life reduces, cost of maintenance risees.
The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a heat radiation structure of converter aims at improving the radiating efficiency of converter, increase of service life.
In order to achieve the above object, the utility model provides a heat radiation structure of converter, include:
the air duct component is arranged inside the frequency converter main body, the frequency converter main body is provided with a first air inlet and a first air outlet which are communicated with the air duct component, and a first heat dissipation fan is arranged at the first air inlet; and
the cabinet body, the converter main part is located the cabinet is internal, at least one second air intake and an at least second air outlet have been seted up to the cabinet body, the second air intake with first air intake intercommunication, the second air outlet with first air outlet intercommunication, second air outlet department is equipped with second radiator fan, converter main part during operation, first radiator fan is with outside air certainly the second air intake inhales first air intake, behind the wind channel part, second radiator fan flows in the second air outlet with the air from first air outlet and discharges.
Optionally, the heat dissipation structure of the frequency converter further includes a relay, the relay includes a coil connected in series with the frequency converter main body and an auxiliary node connected in series with the second heat dissipation fan, and the second heat dissipation fan and the auxiliary node are connected in parallel with the frequency converter main body and the coil;
when the frequency converter main body is electrified and started, the coil is electrified, the auxiliary node is instantaneously closed, and the second cooling fan starts to draw air; when the frequency converter main body is powered off and stops running, the coil is powered off, the auxiliary node is disconnected in a delayed mode, and the second cooling fan stops running.
Optionally, the second air inlet and the second air outlet are both square holes.
Optionally, the lengths of the side edges of the second air inlet and the second air outlet are 280mm to 350 mm.
Optionally, the second air inlet and the first air inlet are arranged opposite to each other;
and/or the second air outlet is opposite to the first air outlet.
Optionally, the centers of the first air inlet, the first air outlet, the second air inlet, and the second air outlet are coaxially arranged.
Optionally, the first air inlet and the second air inlet are provided with filter screens.
Optionally, the second air outlet is provided with a rain-proof brim detachably connected with the cabinet body;
and/or, the second air inlet is provided with a rainproof brim detachably connected with the cabinet body.
Optionally, the number of the second air inlets and the number of the second air outlets are two, the two second air inlets are arranged at intervals, and the two second air outlets are arranged at intervals.
Optionally, the air output of the second cooling fan is 1500m3/h～2400m3/h。
The utility model discloses heat radiation structure of converter includes the converter main part and the cabinet body, and it is internal that the cabinet is located to the converter main part, and through first air intake and the first air outlet that set up intercommunication wind channel part in the converter main part, first air intake department is equipped with first cooling fan, and at least one second air intake and an at least second air outlet have been seted up to the cabinet body, and second air intake and first air intake intercommunication, second air outlet and first air outlet intercommunication, second air outlet department are equipped with second cooling fan. When the frequency converter main body works, the first cooling fan sucks external air into the first air inlet from the second air inlet, and after passing through the air duct component, the second cooling fan flows the air into the second air outlet from the first air outlet and discharges the air, and the second cooling fan draws air outwards. The improvement of dispelling the heat in the outside of converter main part, compare and improve in the tradition in the inside of converter main part, reduced the radiator fan quantity in the converter main part, reduce the source that generates heat, the radiating effect is good, and then has prolonged the life of converter main part.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a heat dissipation structure of a frequency converter according to the present invention;
fig. 2 is the circuit structure diagram of the utility model discloses the relay is connected with second cooling fan.
The reference numbers illustrate:
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some 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 efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a heat radiation structure 100 of converter.
Referring to fig. 1, in the embodiment of the present invention, the heat dissipation structure 100 of the frequency converter includes:
the air-conditioning system comprises a frequency converter main body 10, wherein an air duct part 11 is arranged inside the frequency converter main body 10, the frequency converter main body 10 is provided with a first air inlet 12 and a first air outlet 13 which are communicated with the air duct part 11, and a first cooling fan 20 is arranged at the first air inlet 12; and
the cabinet body 30, the converter main part 10 is located in the cabinet body 30, at least one second air intake 31 and at least one second air outlet 32 have been seted up to the cabinet body 30, the second air intake 31 with first air intake 12 intercommunication, the second air outlet 32 with first air outlet 13 intercommunication, second air outlet 32 department is equipped with second radiator fan 40, the during operation of converter main part 10, first radiator fan 20 with outside air certainly second air intake 31 inhales first air intake 12, behind air duct component 11, second radiator fan 40 flows in the second air outlet 32 with the air from first air outlet 13 and discharges.
Specifically, the frequency converter main body 10 may be a 400V high-power frequency converter, and the first cooling fan 20 is disposed at the center of the first air inlet 12, so that the ventilation effect is good. The cabinet 30 is square. The cabinet body 30 is provided with a second air inlet 31 and a second air outlet 32 corresponding to the first air inlet 12 and the first air outlet 13, in order to achieve a better ventilation effect, the opening size of the second air inlet 31 is larger than that of the first air inlet 12, and the opening size of the second air outlet 32 is larger than that of the first air outlet 13. The second cooling fan 40 is arranged at the center of the second air outlet 32, and the ventilation effect is good.
The utility model discloses heat radiation structure 100 of converter includes converter main part 10 and the cabinet body 30, converter main part 10 is located in the cabinet body 30, through first air intake 12 and first air outlet 13 that set up intercommunication air duct component at converter main part 10, first air intake 12 department is equipped with first cooling fan 20, at least one second air intake 31 and at least one second air outlet 32 have been seted up to the cabinet body 30, second air intake 31 and first air intake 12 intercommunication, second air outlet 32 and first air outlet 13 intercommunication, second air outlet 32 department is equipped with second cooling fan 40, second cooling fan 40 is toward outer convulsions. When the frequency converter main body 10 works, the first cooling fan 20 sucks external air from the second air inlet 31 into the first air inlet 12, and after passing through the air duct 11, the second cooling fan 40 flows the air from the first air outlet 13 into the second air outlet 32 and discharges the air. The improvement of dispelling the heat in the outside of converter main part 10, compare and improve in the tradition in the inside of converter main part 10, reduced the radiator fan quantity in the converter main part 10, reduce the heat source, the radiating effect is good, and then has prolonged the life of converter main part 10.
Referring to fig. 2, the heat dissipation structure 100 of the inverter further includes a relay 50, the inverter body 10 has an inverter operation node 14, the relay 50 includes a coil 51 connected in series with the inverter operation node 14 and an auxiliary node 52 connected in series with the second cooling fan 40, and the second cooling fan 40 and the auxiliary node 52 are connected in parallel with the inverter operation node 14 and the coil 51;
when the frequency converter main body 10 is started, the frequency converter operation node 14 is closed, the coil 51 is electrified, the auxiliary node 52 is instantaneously closed, and the second cooling fan 40 starts to draw air; when the frequency converter main body 10 is powered off and stops operating, the frequency converter operating node 14 is disconnected, the coil 51 is powered off, the auxiliary node 52 is disconnected in a delayed mode, and the second cooling fan 40 stops operating.
In this embodiment, the relay 50 is a time delay relay, and includes a coil 51 and an auxiliary node 52, the frequency converter operation node 14 is connected in series with the coil 51, the second cooling fan 40 is intelligently controlled by the operation/stop node of the frequency converter main body 10 and the relay 50, the second cooling fan 40 starts to draw air when the frequency converter main body 10 is started, the second cooling fan 40 stops in a time delay manner when the frequency converter main body 10 is stopped, and the time delay time can be set to be different from 5min to 30min as required. The design structure can generally reduce the temperature of the original frequency converter main body 10 which runs at an over-temperature by more than 10-25 ℃.
Further, for convenience of processing, the second air inlet 31 and the second air outlet 32 are both square holes.
Furthermore, the lengths of the side edges of the second air inlet 31 and the second air outlet 32 are 280mm to 350mm, and the lengths of the side edges include 280mm and 350 mm. Preferably, the lengths of the side edges of the second air inlet 31 and the second air outlet 32 are 280mm, 320mm and 350 mm.
In this embodiment, when the lengths of the side edges of the second air inlet 31 and the second air outlet 32 are less than 280mm, the heat dissipation effect is not good. When the lengths of the side edges of the second air inlet 31 and the second air outlet 32 are greater than 350mm, dust easily enters the cabinet 30, and the cleaning is inconvenient. Therefore, it is appropriate to set the side lengths of the second air inlet 31 and the second air outlet 32 between 280mm and 350 mm.
Referring to fig. 1, the second air inlet 31 is opposite to the first air inlet 12;
and/or the second air outlet 32 is opposite to the first air outlet 13.
In this embodiment, the second air inlet 31 and the first air inlet 12 are disposed opposite to each other, and at this time, the overlapping area of the second air inlet 31 and the first air inlet 12 is the largest, and the air circulation effect is the best. Similarly, the second air outlet 32 is opposite to the first air outlet 13, the overlapping area of the second air outlet 32 and the first air outlet 13 is the largest, and the air circulation effect is the best.
Further, in order to realize the rapid air passing through the air duct 11, the centers of the first air inlet 12, the first air outlet 13, the second air inlet 31, and the second air outlet 32 are coaxially arranged.
In order to filter impurities such as dust in the air, filter screens are disposed at the first air inlet 12 and the second air inlet 31. The filter screen is in net distribution, and the mesh size can be set as required, for example, when the frequency converter main body 10 is located in a place where dust particles are larger, the mesh size is set to be slightly larger, but cannot exceed the minimum diameter of the dust particles. In order to facilitate cleaning the inside of the cabinet 30, the filter screen is detachable from the cabinet 30 and the frequency converter body 10, such as by means of a buckle or a screw connection.
Further, the second air outlet 31 is provided with an anti-rain eave detachably connected with the cabinet body 30;
and/or the second air inlet 32 is provided with a rain-proof brim detachably connected with the cabinet body 30.
In this embodiment, in order to prevent rainy day, rainwater enters the cabinet body 30 from the second air inlet 32 or the second air outlet 31, a rain-proof eaves is arranged at the second air outlet 31 and/or the second air inlet 32, the structure of the rain-proof eaves (not shown) is diversified, if the rain-proof eaves can be set as a first baffle, a second baffle and a third baffle which are connected in sequence, the first baffle, the second baffle and the third baffle enclose to form a containing cavity communicated with the second air inlet or the second air outlet, and the side edges of the first baffle, the second baffle and the third baffle are detachably connected with the cabinet body, such as in a screwing mode, a buckling mode, an adhesive mode, and the like.
Furthermore, the number of the second air inlets 32 and the number of the second air outlets 31 are two, two of the second air inlets 32 are arranged at intervals, and two of the second air outlets 31 are arranged at intervals.
In this embodiment, in order to achieve a better ventilation and heat dissipation effect, the number of the second air inlets 32 and the number of the second air outlets 31 are two, and certainly, the number of the second air inlets 32 and the number of the second air outlets 31 may also be three, four, or more.
Wherein the air output of the second cooling fan 40 is 1500m3/h～2400m3H, the air output of the second cooling fan 40 comprises 1500m3H and 2400m3H is used as the reference value. The air output of the second heat dissipation fan 40 is preferably 1800m3/h。
In this embodiment, when the air output of the second cooling fan 40 is less than 1500m3And at the hour, the heat dissipation effect is poor. When the air output of the second heat dissipation fan 40 is larger than 2400m3At the time of/h, dust particles sucked from the outside are increased, and the operating environment of the frequency converter is deteriorated. Therefore, the air output of the second heat dissipation fan 40 is set at 1500m3/h～2400m3Preferably between/h. At this time, the rotating speed of the second cooling fan 40 is 1350r/min to 1500 r/min.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A heat radiation structure of a frequency converter is characterized by comprising:
the air duct component is arranged inside the frequency converter main body, the frequency converter main body is provided with a first air inlet and a first air outlet which are communicated with the air duct component, and a first heat dissipation fan is arranged at the first air inlet; and
the cabinet body, the converter main part is located the cabinet is internal, at least one second air intake and an at least second air outlet have been seted up to the cabinet body, the second air intake with first air intake intercommunication, the second air outlet with first air outlet intercommunication, second air outlet department is equipped with second radiator fan, converter main part during operation, first radiator fan is with outside air certainly the second air intake inhales first air intake, behind the wind channel part, second radiator fan flows in the second air outlet with the air from first air outlet and discharges.
2. The heat dissipation structure of a frequency converter according to claim 1, further comprising a relay, the frequency converter main body having a frequency converter operation node, the relay including a coil connected in series with the frequency converter operation node and an auxiliary node connected in series with the second heat dissipation fan, the second heat dissipation fan and the auxiliary node being connected in parallel with the frequency converter main body and the coil;
when the frequency converter main body is electrified and started, the frequency converter operation node is closed, the coil is electrified, the auxiliary node is instantaneously closed, and the second cooling fan starts to draw air; when the frequency converter main body is powered off and stops running, the frequency converter running node is disconnected, the coil is powered off, the auxiliary node is disconnected in a delayed mode, and the second cooling fan stops running.
3. The heat dissipation structure of a frequency converter according to claim 1, wherein the second air inlet and the second air outlet are both square holes.
4. The heat dissipation structure of a frequency converter according to claim 3, wherein the lengths of the side edges of the second air inlet and the second air outlet are 280mm to 350 mm.
5. The heat dissipating structure of a frequency converter according to claim 1, wherein the second air inlet and the first air inlet are disposed opposite to each other;
and/or the second air outlet is opposite to the first air outlet.
6. The heat dissipation structure of a frequency converter according to claim 5, wherein centers of the first air inlet, the first air outlet, the second air inlet, and the second air outlet are coaxially disposed.
7. The heat dissipation structure of claim 1, wherein a filter screen is disposed at each of the first air inlet and the second air inlet.
8. The heat dissipation structure of a frequency converter according to claim 1, wherein the second air outlet is provided with a rain-proof brim detachably connected with the cabinet body;
and/or, the second air inlet is provided with a rainproof brim detachably connected with the cabinet body.
9. The heat dissipation structure of a frequency converter according to claim 1, wherein the number of the second air inlets and the number of the second air outlets are two, the two second air inlets are spaced apart, and the two second air outlets are spaced apart.
10. The heat dissipation structure of a frequency converter according to claim 1, wherein the air output of the second heat dissipation fan is 1500m3/h～2400m3/h。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921603437.9U CN210629337U (en) | 2019-09-24 | 2019-09-24 | Heat radiation structure of frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921603437.9U CN210629337U (en) | 2019-09-24 | 2019-09-24 | Heat radiation structure of frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210629337U true CN210629337U (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921603437.9U Active CN210629337U (en) | 2019-09-24 | 2019-09-24 | Heat radiation structure of frequency converter |
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| Country | Link |
|---|---|
| CN (1) | CN210629337U (en) |
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- 2019-09-24 CN CN201921603437.9U patent/CN210629337U/en active Active
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