CN210397218U - Frequency converter cooling fan waterproof device and frequency converter - Google Patents
Frequency converter cooling fan waterproof device and frequency converter Download PDFInfo
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- CN210397218U CN210397218U CN201921191558.7U CN201921191558U CN210397218U CN 210397218 U CN210397218 U CN 210397218U CN 201921191558 U CN201921191558 U CN 201921191558U CN 210397218 U CN210397218 U CN 210397218U
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Abstract
The utility model provides a converter cooling fan watertight fittings and converter to improve waterproof performance. The waterproof device of the frequency converter cooling fan comprises a housing, an upper mounting plate, a closed upper cover and a lower mounting plate, wherein the upper mounting plate, the housing and the lower mounting plate form a fan bin; the upper sealing cover completely covers the upper mounting plate, and the lower mounting plate is provided with an air inlet corresponding to the air ring of the heat-radiating fan; the housing is provided with an air outlet, the air outlet is provided with a waterproof shutter assembly, and the part of the housing connected with the lower mounting plate is provided with a water drainage port. The utility model provides a frequency converter cooling fan waterproof device, cooling fan is enclosed in the fan storehouse and seals the upper cover and cover the mounting panel completely, effectively waterproof to cooling fan; the housing is provided with an air outlet to ensure the heat dissipation function of the heat dissipation fan, and the air outlet is provided with a waterproof shutter component to prevent rainwater from entering the housing from the air outlet as much as possible; the connection part of the housing and the lower mounting plate is provided with a water outlet, so that the requirement of the whole waterproof grade is improved.
Description
Technical Field
The utility model relates to a converter especially relates to a carry out waterproof watertight fittings and converter to the cooling fan of converter.
Background
The heat dissipation of converter adopts centrifugal fan to carry out forced air cooling heat dissipation usually, adopts centrifugal fan to convulsions at the converter air outlet promptly, improves the radiating efficiency. However, the centrifugal fan is not completely sealed, rainwater may enter the air duct through the blades and then enter the frequency converter, the protection level cannot meet the IP level waterproof requirement set by the frequency converter, and a device capable of improving the waterproof level is required to be added outside the fan and is usually a waterproof shield. However, because the fan needs to exhaust air, an air outlet needs to be designed on the shield, and the air outlet still has the possibility of water inflow, which cannot meet the protection requirement above IPX 5.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a converter cooling fan watertight fittings to improve waterproof performance, provide a converter including above-mentioned converter cooling fan watertight fittings simultaneously.
In order to solve the technical problem, the utility model provides a converter cooling fan watertight fittings adopts following technical scheme to realize: a frequency converter heat radiation fan waterproof device comprises a housing, an upper mounting plate, a closed upper cover and a lower mounting plate, wherein the upper mounting plate and the closed upper cover are fixedly connected to the top end of the housing; the upper sealing cover completely covers the upper mounting plate to prevent rainwater from entering the fan bin from a part where the upper mounting plate is connected with the housing, and the lower mounting plate is provided with an air inlet corresponding to an air ring of the heat dissipation fan; the water-proof shutter is characterized in that an air outlet is formed in the housing, the air outlet is provided with a water-proof shutter assembly, and a water drainage opening is formed in the position, connected with the lower mounting plate, of the housing.
The housing is defined by four rectangular side plates, the upper mounting plate, the closed upper cover and the lower mounting plate are all correspondingly rectangular, and the four rectangular side plates of the housing are all provided with the air outlet and the waterproof shutter assembly.
The waterproof louver component comprises two vertical supporting plates and a plurality of transverse blades, the vertical supporting plates are oppositely arranged, the transverse blades are located between the vertical supporting plates and are vertically arranged, the vertical supporting plates are welded on the housing, the transverse blades are inclined downwards from inside to outside, and the lower edges of the transverse blades above the transverse blades among the transverse blades are flush with the upper edges of the transverse blades below the transverse blades or are adjacent to the transverse blades, and the transverse blades are partially overlapped.
The number of the water discharge openings is four, and the four water discharge openings are respectively positioned at the parts where the four rectangular side plates of the housing are connected with the lower mounting plate.
The edge of the circumference of the closed upper cover is provided with a vertical flanging which surrounds the circumference of the closed upper cover, and the vertical flanging is attached to the outer wall of the top end of the housing and fixedly connected into a whole.
The edge of the air inlet is positioned on the outer side of the air ring arc-shaped part of the heat-radiating fan.
A plurality of support bars are arranged on the inner wall of the top end of the housing along the circumferential direction of the inner wall, each support bar is provided with a horizontal support portion, and the edge portion of the upper mounting plate is supported on the horizontal support portion and is fastened by screws on the horizontal support portion.
The lower mounting plate and the housing are of an integral bending structure.
And fixed plates are fixedly arranged at the four corners of the lower mounting plate respectively.
The utility model also provides a frequency converter, the power distribution box comprises a box body, be equipped with on the roof of box the heat dissipation with the air outlet and with the cooling fan that the air outlet links up for the heat dissipation, its characterized in that: still be equipped with foretell converter cooling fan watertight fittings on the roof of box, cooling fan's motor top links firmly on the last mounting panel, cooling fan's wind circle links firmly under on the mounting panel.
Compared with the prior art, the utility model has the advantages of it is following and positive effect:
1. the utility model provides a frequency converter cooling fan waterproof device, which surrounds a cooling fan in a fan bin surrounded by a housing, an upper mounting plate and a lower mounting plate, wherein a closed upper cover completely covers the upper mounting plate to prevent rainwater from entering the fan bin from the position where the upper mounting plate is connected with the housing, thereby effectively preventing the cooling fan from being waterproofed; meanwhile, an air outlet is arranged on the housing to ensure the heat dissipation function of the heat dissipation fan, and the air outlet is provided with a waterproof shutter assembly to reduce the risk of rainwater entering from the air outlet of the housing as much as possible; the position that the housing is connected with the lower mounting plate is provided with a water outlet, when rainwater enters the fan bin from the housing air outlet, the rainwater can be discharged out of the fan bin from the water outlet, the rainwater is prevented from entering the frequency converter box body through the cooling fan, and the requirement of the whole waterproof grade is improved.
2. The frequency converter comprising the frequency converter heat radiation fan waterproof device has the corresponding technical effect.
Drawings
Fig. 1 is a schematic perspective view of a top view angle of a waterproof device of a frequency converter cooling fan in an embodiment of the present invention;
fig. 2 is a schematic perspective view of a bottom view angle of a waterproof device of a frequency converter cooling fan in an embodiment of the present invention;
FIG. 3 is a front view of FIG. 1;
FIG. 4 is a sectional view taken along line A-A of FIG. 3;
fig. 5 is a schematic structural view of a waterproof louver assembly according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 to 4, the waterproof device for a heat dissipation fan of a frequency converter in this embodiment includes a housing 100, an upper mounting plate 200 and a closed upper cover 300 fixedly connected to a top end of the housing 100, and a lower mounting plate 400 fixedly connected to a bottom end of the housing 100, where the upper mounting plate 200, the housing 100, and the lower mounting plate 400 enclose a fan chamber 600 for accommodating a heat dissipation fan 500 (generally, a centrifugal fan), where the upper mounting plate 200 and the lower mounting plate 400 are used for mounting and fixing the heat dissipation fan 500; as shown in fig. 1, the upper sealing cover 300 is a complete plate-shaped cover without any hole structure on the top surface, and completely covers the upper mounting plate 200 to prevent rainwater from entering the fan chamber 600 from the position where the upper mounting plate 200 is connected with the housing 100, and the lower mounting plate 400 is provided with an air inlet 410 corresponding to the air ring 510 of the heat dissipation fan 500 to avoid the air ring 510 so that the air ring 510 can be smoothly connected with an air outlet for heat dissipation on the frequency converter case body to perform air suction and heat dissipation; the housing 100 is provided with an air outlet 110, the air outlet 110 is provided with a waterproof shutter assembly 120, and a water discharge opening 700 is formed at a connecting portion of the housing 100 and the lower mounting plate 400.
In the waterproof device for the frequency converter cooling fan provided by the embodiment, the cooling fan is accommodated in the fan bin 600, and the upper mounting plate 200 is completely covered by the upper sealing cover 300 to prevent rainwater from entering the fan bin 600 from the position where the upper mounting plate 200 is connected with the housing 100, so that the cooling fan 500 is effectively prevented from being waterproofed; meanwhile, the air outlet 110 is arranged on the housing 100 to ensure the heat dissipation function of the heat dissipation fan 500, and the waterproof louver assembly 120 can only possibly reduce the risk of rainwater entering the fan bin 600 from the air outlet 110; the position where the housing 100 is connected with the lower mounting plate 400 is provided with the water outlet 700, so that when rainwater enters the fan bin 600 from the housing air outlet 110, the rainwater can be discharged from the water outlet 700, the rainwater is prevented from entering the box body of the frequency converter through the cooling fan 500, the overall waterproof grade requirement is improved, and the IP grade waterproof requirement formulated by the frequency converter can be met.
Further, since the waterproof device of the frequency converter heat dissipation fan in the embodiment is to be located at the top of the frequency converter box, the mass thereof is light, and meanwhile, the manufacturing is simple and the cost is low, the cover 100, the upper mounting plate 200, the upper sealing cover 300 and the lower mounting plate 400 in the embodiment are preferably made of sheet metal. Specifically, the housing 100 is surrounded by four rectangular side plates, the upper mounting plate 200, the closed upper cover 300 and the lower mounting plate 400 are all corresponding to horizontal rectangular plates, the four rectangular side plates of the housing 100 are all provided with the air outlets 110 to improve the heat dissipation effect of the heat dissipation fan 500, and each air outlet 1100 is configured with the waterproof louver assembly 120 so as to be waterproof.
Referring to fig. 5 in conjunction with fig. 4, the waterproof louver assembly 120 includes two vertical support plates 121 disposed opposite to each other and a plurality of horizontal blades 122 disposed between the two vertical support plates 121 and disposed up and down, the vertical support plates 121 are welded to the housing 100, so that the waterproof louver assembly 120 is integrally fixed at the air outlet 110 of the housing 100, the horizontal blades 122 are inclined downward from inside to outside so as to block rainwater, a lower edge B of an upper horizontal blade 122 of two adjacent horizontal blades 122 is flush with an upper edge C of a lower horizontal blade 122, or two adjacent horizontal blades 122 are partially overlapped to increase a water blocking effect, as shown in fig. 4.
If rainwater enters the fan chamber 600, in order to improve the drainage effect, the number of the drainage openings 700 is four, and the drainage openings are respectively located at the positions where the four rectangular side plates of the housing 100 are connected with the lower mounting plate 400, as shown in fig. 1 to 4, the positions are the positions where water is most likely to accumulate, and the drainage effect is best when the drainage openings 700 are arranged at the positions. Specifically, the drain opening 700 is formed by cutting off a part of the material at the connecting portion between the four rectangular side plates of the casing 100 and the lower mounting plate 400, so that a notch is formed at each connecting portion between the four rectangular side plates of the casing 100 and the lower mounting plate 400.
Because the closed upper cover 300 also needs to be fixedly connected with the top end of the housing 100, in order to avoid water from entering through the connection with the housing 100 as much as possible, as shown in fig. 1, a vertical flange 310 surrounding the circumference of the closed upper cover 300 is arranged at the circumferential edge of the closed upper cover 300, the vertical flange 310 can be integrally bent and formed with the closed upper cover 300, and the vertical flange 310 is attached to and fixedly connected with the outer wall of the top end of the housing 100 into a whole and can be connected by screws. Thus, the connection part of the closing upper cover 300 and the housing 100 is arranged on the side surface, and the possibility of water easily entering from the top surface installation connection is avoided.
Because to increase the air suction and heat dissipation effect, in the prior art, the area of the wind ring 510 of the heat dissipation fan 500 is usually larger than the area of the heat dissipation air outlet on the frequency converter box, so that the wind ring 510 can completely cover the heat dissipation air outlet on the frequency converter box, the heat dissipation air outlet on the frequency converter box usually abuts against the inner wall of the arc-shaped portion of the wind ring 510, and the dotted line in fig. 4 is the heat dissipation air outlet 900 on the frequency converter box. Based on this, in this embodiment, the edge of the air inlet 410 on the lower mounting plate 400 is located outside the arc portion of the air ring 510 of the heat dissipation fan 500, and accordingly, the air inlet 410 is located outside and below the heat dissipation air outlet on the inverter case, if rainwater enters the fan chamber 600 through the waterproof louver assembly 120, most of the rainwater is drained by the drain opening 700, and a small portion of the rainwater can flow out from the air inlet 410 on the lower mounting plate 400, so as to completely avoid entering the heat dissipation air outlet of the inverter.
For the mounting of the upper mounting plate 200 at the top end of the casing 100, specifically, as shown in fig. 4, a plurality of support bars 130 are arranged on the top end inner wall of the casing 100 along the circumferential direction thereof, the support bars 130 have horizontal support portions 131, and the edge portions of the upper mounting plate 200 are supported on the horizontal support portions 131 and are screw-fastened to the horizontal support portions 131. Of course, other mounting manners may also be adopted, and this embodiment is not particularly limited thereto.
Also, in order to improve the waterproof effect, the lower mounting plate 400 and the housing 100 are of an integral bending structure, as shown in fig. 4, so as to avoid the problem of water inflow at the joint after the split structure is connected.
Furthermore, the four corners of the lower mounting plate 400 are respectively and fixedly provided with a fixing plate 800 to improve the strength of the lower mounting plate 400, and the fixing plate 800 is used as a fixing part of the whole waterproof device and is fixedly connected to the top plate of the frequency converter box body, and the fixing plate 800 can be fixedly arranged on the lower mounting plate 400 in a welding manner; in addition, the fixing plate 800 may also function as the air inlet 410 on the lower mounting plate 400 too high, so that a gap is formed between the fixing plate and the top plate of the frequency converter box, thereby facilitating water drainage.
This embodiment has still provided a converter, including the box, be equipped with on the roof of box heat dissipation with air outlet 900 and with the radiator fan 500 that air outlet 900 links up for the heat dissipation, radiator fan 500 refers to fig. 4 with linking up of air outlet 900 for the heat dissipation, still is equipped with converter radiator fan watertight fittings on the roof of box, converter radiator fan watertight fittings's concrete structure is seen in the utility model discloses converter radiator fan watertight fittings's embodiment and the description of attached 1 to 5 are no longer repeated here, and radiator fan 500's motor 520 top links firmly on last mounting panel 200, and radiator fan 520's wind circle 510 links firmly under on mounting panel 400.
In this embodiment, the whole waterproof device of the heat dissipation fan of the frequency converter is fixedly connected to the top plate of the frequency converter box body through the fixing plate 800.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.
Claims (10)
1. The utility model provides a converter cooling fan watertight fittings which characterized in that: the fan bin comprises a housing, an upper mounting plate, a closed upper cover and a lower mounting plate, wherein the upper mounting plate and the closed upper cover are fixedly connected to the top end of the housing; the upper sealing cover completely covers the upper mounting plate to prevent rainwater from entering the fan bin from a part where the upper mounting plate is connected with the housing, and the lower mounting plate is provided with an air inlet corresponding to an air ring of the heat dissipation fan; the water-proof shutter is characterized in that an air outlet is formed in the housing, the air outlet is provided with a water-proof shutter assembly, and a water drainage opening is formed in the position, connected with the lower mounting plate, of the housing.
2. The waterproof device of the frequency converter cooling fan as claimed in claim 1, wherein: the housing is defined by four rectangular side plates, the upper mounting plate, the closed upper cover and the lower mounting plate are all correspondingly rectangular, and the four rectangular side plates of the housing are all provided with the air outlet and the waterproof shutter assembly.
3. The waterproof device of the frequency converter cooling fan as claimed in claim 1 or 2, wherein: the waterproof louver component comprises two vertical supporting plates and a plurality of transverse blades, the vertical supporting plates are oppositely arranged, the transverse blades are located between the vertical supporting plates and are vertically arranged, the vertical supporting plates are welded on the housing, the transverse blades are inclined downwards from inside to outside, and the lower edges of the transverse blades above the transverse blades among the transverse blades are flush with the upper edges of the transverse blades below the transverse blades or are adjacent to the transverse blades, and the transverse blades are partially overlapped.
4. The waterproof device of the frequency converter cooling fan as claimed in claim 2, wherein: the number of the water discharge openings is four, and the four water discharge openings are respectively positioned at the parts where the four rectangular side plates of the housing are connected with the lower mounting plate.
5. The waterproof device of the frequency converter cooling fan as claimed in claim 2, wherein: the edge of the circumference of the closed upper cover is provided with a vertical flanging which surrounds the circumference of the closed upper cover, and the vertical flanging is attached to the outer wall of the top end of the housing and fixedly connected into a whole.
6. The waterproof device of the frequency converter cooling fan as claimed in claim 1, wherein: the edge of the air inlet is positioned on the outer side of the air ring arc-shaped part of the heat-radiating fan.
7. The waterproof device of the frequency converter cooling fan as claimed in claim 1, wherein: a plurality of support bars are arranged on the inner wall of the top end of the housing along the circumferential direction of the inner wall, each support bar is provided with a horizontal support portion, and the edge portion of the upper mounting plate is supported on the horizontal support portion and is fastened by screws on the horizontal support portion.
8. The waterproof device of the frequency converter cooling fan as claimed in claim 7, wherein: the lower mounting plate and the housing are of an integral bending structure.
9. The waterproof device of the frequency converter cooling fan as claimed in claim 8, wherein: and fixed plates are fixedly arranged at the four corners of the lower mounting plate respectively.
10. The utility model provides a frequency converter, includes the box, be equipped with on the roof of box the heat dissipation with the air outlet and with the radiator fan that the air outlet links up for the heat dissipation, its characterized in that: the top plate of the box body is also provided with the frequency converter heat radiation fan waterproof device of any one of claims 1 to 9, the top end of the motor of the heat radiation fan is fixedly connected to the upper mounting plate, and the wind ring of the heat radiation fan is fixedly connected to the lower mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921191558.7U CN210397218U (en) | 2019-07-26 | 2019-07-26 | Frequency converter cooling fan waterproof device and frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921191558.7U CN210397218U (en) | 2019-07-26 | 2019-07-26 | Frequency converter cooling fan waterproof device and frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210397218U true CN210397218U (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921191558.7U Active CN210397218U (en) | 2019-07-26 | 2019-07-26 | Frequency converter cooling fan waterproof device and frequency converter |
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| Country | Link |
|---|---|
| CN (1) | CN210397218U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112863813A (en) * | 2021-02-04 | 2021-05-28 | 广州南柯梦网络科技有限公司 | Waterproof outer cover of transformer |
-
2019
- 2019-07-26 CN CN201921191558.7U patent/CN210397218U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112863813A (en) * | 2021-02-04 | 2021-05-28 | 广州南柯梦网络科技有限公司 | Waterproof outer cover of transformer |
| CN112863813B (en) * | 2021-02-04 | 2021-11-23 | 台州市康新电容器有限公司 | Waterproof outer cover of transformer |
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Address after: No. 3138, Shiji Avenue, Huangdao District, Qingdao, Shandong Province Patentee after: Qingdao zhonggate Electric Co., Ltd Address before: 266400 Century Avenue, Huangdao District, Qingdao, Shandong Province, No. 662 Patentee before: QINGDAO CCS VFD MOTOR Co.,Ltd. |