CN210297532U - Frequency converter convenient to maintain - Google Patents
Frequency converter convenient to maintain Download PDFInfo
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- CN210297532U CN210297532U CN201921326532.9U CN201921326532U CN210297532U CN 210297532 U CN210297532 U CN 210297532U CN 201921326532 U CN201921326532 U CN 201921326532U CN 210297532 U CN210297532 U CN 210297532U
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- mounting box
- casing
- fan
- frequency converter
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Abstract
The utility model discloses a converter convenient to maintain, which comprises a housin, the inside mounting panel that is provided with of casing, the mounting panel top is fixed with the converter body, the casing top is provided with the mounting box, both ends set up to the opening about the mounting box, the air intake that is linked together with the mounting box is inside seted up on the casing top, the inside fan that is provided with of mounting box, the fan passes through a plurality of fixed establishment and mounting box fixed connection, a plurality of evenly distributed's through-hole has been seted up on the top of mounting box, a plurality of air outlets have been seted up on the lateral wall surface of casing. The utility model discloses a with the fan setting outside the casing, fan easy dismounting has reduced the maintenance degree of difficulty greatly, and possesses good protectiveness and electromagnetic shield effect.
Description
Technical Field
The utility model relates to a converter technical field specifically is a converter convenient to maintain.
Background
A Variable-frequency Drive (VFD) is a power control device that applies frequency conversion technology and microelectronic technology to control an ac motor by changing the frequency of a working power supply of the motor. The frequency converter mainly comprises a rectifying unit (alternating current to direct current), a filtering unit, an inverting unit (direct current to alternating current), a braking unit, a driving unit, a detection unit micro-processing unit and the like. The frequency converter adjusts the voltage and frequency of an output power supply by switching on and off an internal IGBT, provides the required power supply voltage according to the actual requirement of the motor, and further achieves the purposes of energy saving and speed regulation. With the continuous improvement of the industrial automation degree, the frequency converter is also widely applied. The current frequency converter is generally internally provided with a fan for ensuring the heat dissipation effect, but because the fan is arranged in the inner part, when the frequency converter needs to be overhauled, the shell needs to be opened, the maintenance work is inconvenient, and the maintenance efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a converter convenient to maintain to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a converter convenient to maintain, includes the casing, the inside mounting panel that is provided with of casing, the mounting panel top is fixed with the converter body, the casing top is provided with the mounting box, both ends set up to the opening about the mounting box, the inside air intake that is linked together with the mounting box is seted up on the casing top, the inside fan that is provided with of mounting box, the fan passes through a plurality of fixed establishment and mounting box fixed connection, a plurality of evenly distributed's through-hole is seted up on the top of mounting box, a plurality of air outlets have been seted up on the lateral wall surface of casing, all install the dust screen in air intake and the air outlet.
Preferably, the fan is in transition fit with the inner side wall of the mounting box.
Preferably, the lateral wall of the shell is provided with a plurality of uniformly distributed telescopic rods, one end of the telescopic rod far away from the shell is fixedly connected with a protection plate, and the periphery of the telescopic rod is sleeved with a buffer spring.
Preferably, the surface of the inner side wall of the shell is sprayed with conductive paint.
Preferably, a cushion pad is arranged between the mounting plate and the bottom end inside the shell.
Preferably, the fixing mechanism comprises a cavity, the cavity is formed in the top wall of the mounting box, an internal thread is arranged on the surface of the inner side wall of the cavity, a rotating block is arranged inside the cavity, an external thread is arranged on the surface of the outer side wall of the rotating block, a torsion bar is arranged at the top end of the rotating block, the top end of the torsion bar extends to the top of the mounting box, a clamping column is arranged at the bottom end of the rotating block, a clamping hole is formed in the upper end face of the fan, the bottom end of the clamping column extends to the inside of the mounting box, and the clamping column is clamped and fixed.
Compared with the prior art, the beneficial effects of the utility model are that: when the fan needs to be maintained, the torsion bar is rotated to enable the rotating block to rotate in the cavity, and the rotating block is connected with the cavity through the threads and can do lifting motion relative to the cavity, so that the clamping column is driven to withdraw from the clamping hole, the fan can be pulled out from the mounting box to be maintained or replaced, the shell does not need to be opened additionally, and the maintenance is more convenient; by arranging the protection plate, the protection plate can play a role in protection when being impacted by the outside, so that damage is reduced; the conductive paint is uniformly covered on the surface of the inner side wall of the shell, so that a continuous conductive surface is formed, an electromagnetic shielding effect is formed outside the frequency converter body, and external interference signals can be effectively shielded; the blotter can play buffering shock attenuation effect. The utility model discloses a with the fan setting outside the casing, fan easy dismounting has reduced the maintenance degree of difficulty greatly, and possesses good protectiveness and electromagnetic shield effect.
Drawings
FIG. 1 is a schematic structural view of a frequency converter convenient for maintenance according to the present invention;
fig. 2 is an enlarged view at a in fig. 1.
In the drawings: 1. the device comprises a shell, 2, a mounting plate, 3, a frequency converter body, 4, a mounting box, 5, an air inlet, 6, a fan, 7, a through hole, 8, a fixing mechanism, 9, an air outlet, 10, a dust screen, 11, a cushion pad, 12, conductive paint, 13, a telescopic rod, 14, a protection plate, 15, a buffer spring, 16, a cavity, 17, a rotating block, 18, a torsion bar, 19, a clamping column, 20 and a clamping 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.
The utility model discloses converter convenient to maintain is as shown in fig. 1, 2, including casing 1, 1 inside mounting panel 2 that is provided with of casing, 2 tops of mounting panel are fixed with converter body 3, 1 top of casing is provided with mounting box 4, both ends set up to the opening about mounting box 4, the air intake 5 that is linked together with mounting box 4 inside is seted up on 1 top of casing, the inside fan 6 that is provided with of mounting box 4, fan 6 is through a plurality of fixed establishment 8 and 4 fixed connection of mounting box, a plurality of evenly distributed's through-hole 7 has been seted up on mounting box 4's top, a plurality of air outlets 9 have been seted up on casing 1's lateral wall surface, dust screen 10 all is installed in air intake 5 and the air outlet 9.
The fan 6 is in transition fit with the inner side wall of the mounting box 4. Be provided with a plurality of evenly distributed's telescopic link 13 on the lateral wall of casing 1, the one end fixedly connected with guard plate 14 of casing 1 is kept away from to telescopic link 13, telescopic link 13 periphery cover is equipped with buffer spring 15, through setting up guard plate 14, when receiving external striking, guard plate 14 can play the guard action, reduces the harm. The spraying of the inside wall surface of casing 1 has conductive paint 12, and conductive paint 12 evenly covers on 1 inside wall surface of casing to form continuous conducting surface, form electromagnetic shield effect in the outside of converter body 3, can effectively shield external interfering signal. Be provided with blotter 11 between mounting panel 2 and the inside bottom of casing 1, blotter 11 can play buffering shock attenuation effect. The fixing mechanism 8 comprises a cavity 16, the cavity 16 is formed in the top wall of the mounting box 4, an internal thread is arranged on the surface of the inner side wall of the cavity 16, a rotating block 17 is arranged inside the cavity 16, an external thread is arranged on the surface of the outer side wall of the rotating block 17, a torsion bar 18 is arranged at the top end of the rotating block 17, the top end of the torsion bar 18 extends to the upper side of the mounting box 4, a clamping column 19 is arranged at the bottom end of the rotating block 17, a clamping hole 20 is formed in the upper end face of the fan 6, and the bottom end of the clamping column 19 extends to the inside of the mounting box 4 and is clamped and fixed in the.
When the fan 6 needs to be maintained, the torsion bar 18 is rotated, the rotating block 17 is enabled to rotate in the cavity 16, and due to the fact that the rotating block 17 is connected with the cavity 16 through the threads, the rotating block 17 can do lifting motion relative to the cavity 16, the clamping column 19 is driven to withdraw from the clamping hole 20, then the fan 6 can be pulled out from the mounting box 4, maintenance or replacement of the fan 6 is carried out, the shell 1 does not need to be additionally opened, and maintenance is more convenient.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A converter convenient to maintain, includes casing (1), its characterized in that: casing (1) inside mounting panel (2) that is provided with, mounting panel (2) top is fixed with converter body (3), casing (1) top is provided with mounting box (4), both ends set up to the opening about mounting box (4), air intake (5) that are linked together with mounting box (4) inside are seted up on casing (1) top, mounting box (4) inside is provided with fan (6), fan (6) are through a plurality of fixed establishment (8) and mounting box (4) fixed connection, a plurality of evenly distributed's through-hole (7) have been seted up on the top of mounting box (4), a plurality of air outlets (9) have been seted up on the lateral wall surface of casing (1), dust screen (10) all are installed in air intake (5) and air outlet (9).
2. The frequency converter of claim 1, wherein: the fan (6) is in transition fit with the inner side wall of the mounting box (4).
3. The frequency converter of claim 1, wherein: the telescopic rod type protective cover is characterized in that a plurality of telescopic rods (13) which are uniformly distributed are arranged on the side wall of the shell (1), one end of the telescopic rod (13) far away from the shell (1) is fixedly connected with a protective plate (14), and a buffer spring (15) is sleeved on the periphery of the telescopic rod (13).
4. The frequency converter of claim 1, wherein: and conductive paint (12) is sprayed on the surface of the inner side wall of the shell (1).
5. The frequency converter of claim 1, wherein: a cushion pad (11) is arranged between the mounting plate (2) and the bottom end inside the shell (1).
6. The frequency converter of claim 1, wherein: the fixing mechanism (8) comprises a cavity (16), the cavity (16) is arranged inside the top wall of the mounting box (4), an internal thread is arranged on the surface of the inner side wall of the cavity (16), a rotating block (17) is arranged inside the cavity (16), an external thread is arranged on the surface of the outer side wall of the rotating block (17), a torsion bar (18) is arranged at the top end of the rotating block (17), the top end of the torsion bar (18) extends to the top of the mounting box (4), a clamping column (19) is arranged at the bottom end of the rotating block (17), a clamping hole (20) is formed in the upper end face of the fan (6), and the bottom end of the clamping column (19) extends to the inside of the mounting box (4) and is clamped and fixed in the clamping hole (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921326532.9U CN210297532U (en) | 2019-08-15 | 2019-08-15 | Frequency converter convenient to maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921326532.9U CN210297532U (en) | 2019-08-15 | 2019-08-15 | Frequency converter convenient to maintain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210297532U true CN210297532U (en) | 2020-04-10 |
Family
ID=70062705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921326532.9U Active CN210297532U (en) | 2019-08-15 | 2019-08-15 | Frequency converter convenient to maintain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210297532U (en) |
-
2019
- 2019-08-15 CN CN201921326532.9U patent/CN210297532U/en active Active
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