CN211266739U - Low-voltage frequency converter - Google Patents
Low-voltage frequency converter Download PDFInfo
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- CN211266739U CN211266739U CN201922161830.3U CN201922161830U CN211266739U CN 211266739 U CN211266739 U CN 211266739U CN 201922161830 U CN201922161830 U CN 201922161830U CN 211266739 U CN211266739 U CN 211266739U
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Abstract
The utility model discloses a low-voltage inverter, which comprises a housin, be equipped with the circuit main part in the casing, the casing front side is equipped with operating panel, the casing top is equipped with the air outlet, be equipped with exhaust fan on the air outlet, casing one side is equipped with the air intake, be equipped with the air inlet net on the air intake, air inlet net inboard is equipped with inlet fan, the air inlet net outside is equipped with the dust screen, be equipped with dampproofing screen cloth layer between air inlet net and the dust screen, with be equipped with a plurality of rotation chucking devices on the casing of air intake homonymy, just rotate chucking device set up in the air intake both sides two bisymmetries, dust screen and dampproofing screen cloth layer are fixed through rotating chucking device on the air intake. The utility model discloses can prevent dust and dampproofing, the dismouting dust screen and the dampproofing screen cloth layer of being convenient for.
Description
Technical Field
The utility model relates to a converter technical field specifically is a low-voltage inverter.
Background
The low-voltage frequency converter is an electric energy control device which converts a power frequency power supply into another frequency by utilizing the on-off action of an electric semiconductor device, is widely applied to occasions needing the speed change of an alternating current motor, such as a fan, a water pump, a crane and the like in various industries, and can play the roles of smooth speed change, automatic control and energy saving; the low-voltage frequency converter mainly comprises a rectifying circuit, an intermediate circuit and an inverter circuit, wherein the heat productivity of power devices in the circuits is large in the working process, so that an air inlet and an air outlet are formed in the shell of most low-voltage frequency converters, the interior of the shell is subjected to air exchange with the outside through the air inlet and the air outlet so as to discharge the heat generated by the power devices out of the shell, if the low-voltage frequency converter is used in the severe environments of high humidity and high temperature, much dust and the like, under the action of an air inlet fan, water vapor, dust and the like in the air can enter the shell from the air inlet on the shell and adhere to the circuit, the accumulation of the dust and the water vapor on the circuit along with the increase of the service time easily causes the circuit to generate faults such as short circuit and the like, the devices in the shell are damaged, the performance of the low-voltage frequency converter is influenced, and, however, when the dust screen is cleaned or replaced, it is difficult to detach the dust screen from the heat dissipation through hole.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the problem that above-mentioned prior art exists, provide a can prevent dust and dampproofing, the dismouting dust screen of being convenient for and dampproofing screen cloth layer's low-voltage inverter.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a low-voltage inverter, includes the casing, be equipped with the circuit main part in the casing, the casing front side is equipped with operating panel, the casing top is equipped with the air outlet, be equipped with exhaust fan on the air outlet, casing one side is equipped with the air intake, be equipped with the air inlet net on the air intake, air inlet net inboard is equipped with inlet fan, the air inlet net outside is equipped with the dust screen, be equipped with dampproofing screen cloth layer between air inlet net and the dust screen, with be equipped with a plurality of rotation chucking devices on the casing of air intake homonymy, just rotate chucking device set up with two bisymmetries in the air intake both sides, dust screen and dampproofing screen cloth layer are fixed through rotating chucking.
Further: the rotating clamping device comprises a lower chassis, a locking piece, an upper chassis and a bolt, wherein a lower pin body is arranged on the lower chassis, a limiting table is arranged on the lower pin body, the upper chassis and the opposite side of the lower chassis are provided with an upper pin body, the upper pin body is provided with a limiting groove matched with the limiting table, coaxial through holes are formed in the lower chassis, the lower pin body, the limiting table, the upper chassis, the upper pin body and the limiting groove, threads are arranged on the inner wall of each through hole, the locking piece is sleeved on the lower pin body and the upper pin body, and the lower chassis, the lower pin body, the upper chassis and the upper pin body pass through the bolt.
Further: the dustproof net comprises a dustproof net and is characterized in that one end of a locking piece is provided with an installation through hole matched with the lower pin body and the upper pin body, the other end of the locking piece is provided with a pressing block, and one surface of the pressing block, which is contacted with the dustproof net, is provided with a silica gel gasket.
Further: the periphery of the air inlet is provided with an accommodating groove, and the dustproof net and the moistureproof screen layer are installed on the air inlet through the accommodating groove.
Further: and a silica gel desiccant is filled in the moisture-proof screen mesh layer.
Further: and four corners of the rear side of the shell are respectively provided with connecting holes.
The utility model has the advantages that:
compared with the prior art, the outside through the air inlet net at the air intake sets up the dust screen, be equipped with dampproofing screen cloth layer between air inlet net and the dust screen, dampproofing screen cloth in situ is filled there is the silica gel drier, and be equipped with the holding tank around the air intake, dampproofing screen cloth layer and dust screen set up on the holding tank and fix in the air intake outside through rotating chucking device, when air intake fan during operation, external air enters into in the casing behind dust screen and the dampproofing screen cloth layer, utilize dust screen and dampproofing screen cloth layer in order to isolate dust and steam in the air, prevent that dust and steam from getting into in the casing, damage the power device in the casing, when needing to be changed dust screen and dampproofing screen cloth layer, only need rotatory rotation chucking device can dismantle dust screen and dampproofing screen cloth layer from the air intake, be convenient for change and dismantle.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the air inlet fan, the air inlet net, the moisture-proof mesh layer and the dust-proof net;
fig. 3 is an exploded view of the rotational locking mechanism.
In the figure: 1-shell, 11-operation panel, 12-air outlet, 13-exhaust fan, 14-air inlet, 15-air inlet fan, 16-accommodating groove, 17-connecting hole, 2-air inlet net, 3-dust-proof net, 4-moisture-proof screen layer, 5-rotation clamping device, 51-lower chassis, 52-upper chassis, 53-lower pin body, 54-limiting platform, 55-upper pin body, 6-locking piece, 61-installation through hole, 62-pressing block, 7-bolt and 8-through hole.
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 work belong to the protection scope of the present invention.
As shown in fig. 1-3, the present invention provides a schematic structural diagram of an embodiment of a low voltage inverter: including casing 1, be equipped with the circuit main part in casing 1, casing 1 front side is equipped with operating panel 11, casing 1 top is equipped with air outlet 12, be equipped with exhaust fan 13 on the air outlet 12, casing 1 one side is equipped with air intake 14, be equipped with air inlet net 2 on the air intake 14, air inlet net 2 inboard is equipped with inlet fan 15, the air inlet net 2 outside is equipped with dust screen 3, be equipped with dampproofing screen cloth layer 4 between air inlet net 2 and the dust screen 3, dampproofing screen cloth layer 4 is hollow structure, and be equipped with a plurality of sieve meshes 41 on the dampproofing screen cloth layer 4, the intussuseption of dampproofing screen cloth layer 4 is filled with the silica gel drier, the aperture of silica gel drier is greater than the aperture of sieve mesh 41, be equipped with four rotation chucking device 5 on casing 1 with air intake 14 homonymy, and rotate chucking device 5 and set up in air intake 14 both sides two bisymmetry ground, be equipped with The air inlet fan 15 and the air outlet fan 13 are respectively fixedly connected to the inner wall of the shell 1 through screws and are connected with the circuit main body in the shell 1 through leads;
when the air conditioner is used, the air inlet fan 15 and the exhaust fan 13 are started, so that outside air enters the shell 1 from the air inlet 14 under the action of the air inlet fan 15, heat in the shell 1 is exhausted out of the shell 1 from the air outlet 12 under the action of the exhaust fan 13, the air inlet fan 15 can accelerate the flowing and exchange of the air in the shell 1 and accelerate the heat dissipation speed, when the outside air enters the shell 1 from the air inlet 14, the air sequentially passes through the dustproof net 3 and the moisture-proof screen layer 4, the air passes through the dustproof net 3, dust in the air is filtered by the dustproof net 3, and when the air passes through the moisture-proof screen layer 4, water vapor in the air is adsorbed by the silica gel desiccant, so that the air entering the shell 1 is dry and clean, and the dust-proof and moisture-proof effects are achieved; when the dust screen 3 and the moisture-proof screen layer 4 need to be replaced, the dust screen 3 and the moisture-proof screen layer 4 can be detached from the air inlet 14 by rotating the clamping device 5, so that the replacement and the detachment are convenient.
The rotating clamping device 5 comprises a lower chassis 51, a locking part 6, an upper chassis 52 and a bolt 7, the lower chassis 51 is welded on the shell 1, a lower pin body 53 is arranged on the lower chassis 51, a limiting platform 54 is arranged on the lower pin body 53, an upper pin body 55 is arranged on one surface of the upper chassis 52 opposite to the lower chassis 51, a limiting groove matched with the limiting platform 54 is arranged on the upper pin body 55, the lower chassis 51, the lower pin body 53, the limiting platform 54, the upper chassis 52, the upper pin body 55 and the limiting groove are provided with coaxial through holes 8, the inner wall of the through hole 8 is provided with a thread, the locking part 6 is sleeved on the lower pin body 53 and the upper pin body 55, the lower chassis 51, the lower pin body 53, the upper chassis 52 and the upper pin body 55 are connected by penetrating the bolt 7 through the through hole 8, one end of the locking part 6 is provided with a mounting through hole 61 matched with the lower pin body 53 and the upper pin body 55, the other end of the locking part 6, when in use, the locking piece 6 is rotatably sleeved on the lower pin body 53 through the mounting through hole 61, then the limiting groove on the upper pin body 55 is aligned with the limiting platform 54 on the lower pin body 53, the bolt 7 is inserted into the through hole 8 and screwed, so that the locking piece 6 is sleeved on the lower pin body 53 and the upper pin body 55, when in mounting, the moisture-proof screen mesh layer 4 and the dust screen are placed in the accommodating groove 16 from inside to outside, the pressing block 62 of the locking piece 6 is rotated towards the direction close to the dust screen 3 and is pressed on the dust screen 3, so that the dust screen 3 and the moisture-proof screen mesh layer 4 are fixed outside the air inlet 14, when the dust screen 3 and the moisture-proof screen mesh layer 4 are dismounted, the pressing block 62 is rotated towards the direction far away from the dust screen 3, the dust screen 3 and the moisture-proof screen mesh layer 4 are convenient to dismount, and the limiting platform 54 and the limiting groove are respectively arranged on the lower pin body 53 and the upper pin body 55, the bolt 7 is prevented from rotating along with the locking piece 6 to cause the bolt 7 to be loosened.
Four corners of the rear side of the shell 1 are respectively provided with a connecting hole 17, and the shell 1 can be installed on a control box and other equipment through the connecting holes 17.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (6)
1. The utility model provides a low-voltage inverter, includes casing (1), be equipped with the circuit main part in casing (1), casing (1) front side is equipped with operating panel (11), casing (1) top is equipped with air outlet (12), be equipped with exhaust fan (13) on air outlet (12), casing (1) one side is equipped with air intake (14), be equipped with air inlet net (2) on air intake (14), air inlet net (2) inboard is equipped with inlet fan (15), its characterized in that: air inlet net (2) outside is equipped with dust screen (3), be equipped with dampproofing screen cloth layer (4) between air inlet net (2) and dust screen (3), with be equipped with a plurality of rotation chucking device (5) on casing (1) of air intake (14) homonymy, just rotation chucking device (5) two bisymmetry ground set up in air intake (14) both sides, dust screen (3) and dampproofing screen cloth layer (4) are fixed through rotating chucking device (5) on air intake (14).
2. The low-voltage frequency converter according to claim 1, wherein: the rotating clamping device (5) comprises a lower chassis (51), a locking piece (6), an upper chassis (52) and a bolt (7), a lower pin body (53) is arranged on the lower chassis (51), a limit table (54) is arranged on the lower pin body (53), an upper pin body (55) is arranged on one surface of the upper chassis (52) opposite to the lower chassis (51), the upper pin body (55) is provided with a limit groove matched with the limit table (54), coaxial through holes (8) are arranged on the lower chassis (51), the lower pin body (53), the limiting table (54), the upper chassis (52), the upper pin body (55) and the limiting groove, the inner wall of the through hole (8) is provided with threads, the locking piece (6) is sleeved on the lower pin body (53) and the upper pin body (55), the lower chassis (51), the lower pin body (53), the upper chassis (52) and the upper pin body (55) are connected through the through hole (8) by the bolt (7).
3. The low-voltage frequency converter according to claim 2, wherein: retaining member (6) one end be equipped with down round pin body (53) and last round pin body (55) assorted mounting hole (61), the other end of retaining member (6) is equipped with compact heap (62), compact heap (62) with be equipped with the silica gel gasket on the one side of dust screen (3) contact.
4. The low-voltage frequency converter according to claim 1, wherein: the periphery of the air inlet (14) is provided with an accommodating groove (16), and the dustproof net (3) and the moistureproof screen layer (4) are installed on the air inlet (14) through the accommodating groove (16).
5. The low-voltage frequency converter according to claim 1, wherein: and a silica gel drying agent is filled in the moisture-proof screen layer (4).
6. The low-voltage frequency converter according to claim 1, wherein: four corners of the rear side of the shell (1) are respectively provided with connecting holes (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922161830.3U CN211266739U (en) | 2019-12-06 | 2019-12-06 | Low-voltage frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922161830.3U CN211266739U (en) | 2019-12-06 | 2019-12-06 | Low-voltage frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211266739U true CN211266739U (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922161830.3U Active CN211266739U (en) | 2019-12-06 | 2019-12-06 | Low-voltage frequency converter |
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| CN (1) | CN211266739U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112954942A (en) * | 2021-04-23 | 2021-06-11 | 大连交通大学 | Easy-to-assemble and disassemble dustproof device and method for computer automation system |
-
2019
- 2019-12-06 CN CN201922161830.3U patent/CN211266739U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112954942A (en) * | 2021-04-23 | 2021-06-11 | 大连交通大学 | Easy-to-assemble and disassemble dustproof device and method for computer automation system |
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