Installation structure of frequency converter cooling fan

Abstract

The utility model discloses an installation structure of a frequency converter cooling fan. The installation structure comprises a cooling fan assembly installed on a radiator shell. The cooling fan assembly comprises a cooling fan body, a fan support and a protective net which are fixedly installed into a whole. Wherein the fan support and the radiator shell are connected in a clamped mode through a plurality of buckles, the cooling fan body is located in the radiator shell, and the protective net is located outside the radiator shell. When the cooling fan body needs to be maintained, the cooling fan assembly can be rapidly detached from the radiator shell, a locking piece does not need to be detached, replacement operation can be rapidly completed, and the maintenance time of the frequency converter cooling fan is obviously shortened.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of wind generating set, concretely relates to a mounting structure of frequency converter cooling fan. BACKGROUND

[0002] Industrial frequency converter will release a lot of heat in the internal electronic equipment during normal operation. The common solution is to use a (or multiple) axial flow fan on the radiator of the frequency converter, and use the axial flow fan as a cooling fan to transfer heat to the external environment. The use environment of industrial frequency converter products often has factors that can reduce the service life of the cooling fan, such as: particulate matter or harmful gases suspended in the air in the factory, oil stains leaked from the moving machinery, high temperature in the factory building, high frequency vibration in the generator set or train, etc. These harsh use conditions will greatly reduce the service life of the cooling fan of the frequency converter exposed to these environments; once the fan fails to work, it will cause the frequency converter to overheat and shut down, thereby forcing the entire production line or unit to stop running. The efficiency of replacing the faulty fan will greatly affect the downtime of the production line or unit. Reducing maintenance time will greatly reduce downtime and reduce economic losses caused by frequency converter cooling fan failure.

[0003] In order to reduce the maintenance time of the frequency converter cooling fan, the current scheme proposes to add a filter device to the air inlet of the frequency converter cooling fan, and use a general filter device to filter pollutants in the environment and reduce the damage of pollutants to the frequency converter cooling fan. The filter device can be filter cotton or metal filter screen. However, in order to achieve better filtering effect, the air volume of the fan air inlet will be reduced, thereby affecting the cooling efficiency. In addition, the filter device cannot solve the problem of reduced service life of the cooling fan caused by vibration. Moreover, the filter cotton will become brittle and shed in the long-term high-temperature environment, thereby affecting the normal operation of other equipment.

[0004] Therefore, the applicant hopes to find a technical solution to solve the above technical problems. SUMMARY

[0005] Therefore, the utility model discloses a mounting structure of frequency converter cooling fan, when the cooling fan body needs to be repaired, the cooling fan assembly can be quickly disassembled from the radiator shell without removing the locking piece, so that the replacement work can be quickly completed, and the maintenance time of the frequency converter cooling fan is obviously reduced.

[0006] Therefore, the utility model adopts the technical scheme as follows:

[0007] The application discloses a mounting structure of a variable frequency converter heat dissipation fan, which comprises a heat dissipation fan assembly mounted on a heat dissipation housing; the heat dissipation fan assembly comprises a heat dissipation fan body, a fan support and a protective net fixedly mounted as a whole; the fan support is clamped with the heat dissipation housing through a plurality of buckles; the heat dissipation fan body is located in the interior of the heat dissipation housing; and the protective net is located in the exterior of the heat dissipation housing.

[0008] Preferably, the fan support is provided with a plurality of buckles, and the heat dissipation housing is provided with a plurality of buckle openings corresponding to the buckles; the buckles are respectively limitedly clamped with the corresponding buckle openings on the heat dissipation housing.

[0009] Preferably, the fan support and the heat dissipation housing are respectively provided with support plug-in opening and housing plug-in opening which are correspondingly distributed; a second plug-in is inserted into the support plug-in opening, and a first plug-in is inserted into the housing plug-in opening; and the second plug-in and the first plug-in are tightly connected. The second plug-in and the first plug-in are power plug-in, and the plug-in structure can realize quick mounting and dismounting.

[0010] Preferably, the support plug-in opening and the housing plug-in opening are both panel-mounted structures; the fan support comprises an plug-in opening panel block which is upwardly bent along the panel surface of the fan support; and the support plug-in opening is located on the plug-in opening panel block.

[0011] Preferably, the left side and the right side of the fan support are respectively provided with one or more buckles which are spacedly distributed; and the support plug-in opening is arranged on the front side or the back side.

[0012] Preferably, the front side or the back side of the fan support is provided with a lock screw mounting hole; and the lock screw is locked and matched with the heat dissipation housing.

[0013] Preferably, the lock screw mounting hole is an open structure which is not closed; preferably, the outer diameter of the lock screw mounting hole is larger than the inner diameter of the lock screw mounting hole, so that the quick mounting and dismounting are facilitated.

[0014] Preferably, the panel surface of the fan support is bended; the panel surface located in the middle is convex relative to the panel surface located in the outer periphery; and the panel surface located in the middle is correspondingly contacted and matched with the heat dissipation fan body.

[0015] Preferably, the outer periphery of the panel surface located in the middle, the outer periphery of the heat dissipation fan body and the outer periphery of the protective net are respectively provided with a plurality of mounting holes which are correspondingly arranged; and the fasteners are fastened and locked with the mounting holes.

[0016] Preferably, the middle plate is in a quadrilateral shape, and a circular opening is arranged at the inner periphery of the middle plate; the heat dissipation fan body is arranged on the front surface of the middle plate, the protective net is arranged on the back surface of the middle plate, and the circular opening is arranged in correspondence with the protective net.

[0017] The utility model discloses an installation structure of frequency converter heat dissipation fan, which can realize efficient and rapid disassembly and assembly of the frequency converter heat dissipation fan.

[0018] The utility model discloses an installation structure of frequency converter heat dissipation fan, which can realize efficient and rapid disassembly and assembly of the frequency converter heat dissipation fan.

[0019] The utility model discloses an installation structure of frequency converter heat dissipation fan, which can realize efficient and rapid disassembly and assembly of the frequency converter heat dissipation fan. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the installation structure schematic drawing of frequency converter heat dissipation fan under the utility model specific embodiment;

[0021] Figure 2 It is the installation structure schematic drawing of frequency converter heat dissipation fan under the utility model specific embodiment;

[0022] Figure 3 It is the installation structure schematic drawing of frequency converter heat dissipation fan under the utility model specific embodiment;

[0023] Figure 4 It is the installation structure schematic drawing of frequency converter heat dissipation fan under the utility model specific embodiment. DETAILED DESCRIPTION

[0024] The utility model discloses an installation structure of frequency converter heat dissipation fan, which can realize efficient and rapid disassembly and assembly of the frequency converter heat dissipation fan.

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0026] Please refer to Figure 1 , Figure 2 and Figure 3 and Figure 4 , a mounting structure of a radiator cooling fan, comprising a cooling fan assembly 20 mounted on a radiator shell 10; the cooling fan assembly 20 comprises a cooling fan body 21, a fan bracket 22 and a protective net 23 fixedly mounted as a whole; wherein the fan bracket 22 is clamped with the radiator shell 10 through a plurality of buckles, the cooling fan body 21 is located inside the radiator shell 10, and the protective net 23 is located outside the radiator shell 10; preferably, in the present embodiment, a plurality of buckles 30 are provided on the fan bracket 22, and the radiator shell 10 is provided with a plurality of buckles 30 corresponding to the buckles, wherein each buckle 30 is respectively limited and clamped with the corresponding buckle 11 on the radiator shell 10; the installation position of the cooling fan assembly 20 is fixedly assisted through the buckle structure on the fan bracket 22, and the installation direction of the cooling fan assembly 20 can be guided and positioned at the same time.

[0027] Preferably, in the present embodiment, the fan bracket 22 and the radiator shell 10 are respectively provided with bracket connector opening 22a and shell connector opening 10a which are correspondingly distributed, the second connector b is inserted and connected in the bracket connector opening 22a, and the first connector a is inserted and connected in the shell connector opening 10a, the second connector b and the first connector a are tightly connected for realizing power connection; when disassembling the cooling fan assembly 20, two connectors (i.e. the second connector b and the first connector a) do not need to be manually inserted, as long as the fan bracket 22 is installed in place, the two connectors can be installed in place; further preferably, in the present embodiment, the bracket connector opening 22a and the shell connector opening 10a adopt a panel mounting type structure; wherein the fan bracket 22 comprises an insert opening panel block 24 which is upwardly bent along the panel surface of the fan bracket, and the bracket connector opening 22a is located on the insert opening panel block 24.

[0028] Preferably, in the present embodiment, the left side and the right side of the fan bracket 22 are respectively provided with one or more buckles 30 which are spaced apart, and specifically preferably, in the present embodiment, the left side and the right side of the fan bracket 22 are respectively provided with two buckles 30 which are spaced apart; and the bracket connector opening 22a is provided on the front side.

[0029] Preferably, in the present embodiment, the front side or the rear side of the fan bracket 22 is provided with a locking screw mounting hole 25, which is locked and matched with the radiator shell 10 through a locking screw 26; further preferably, in the present embodiment, the locking screw mounting hole 25 is in the form of an open hole, and more preferably, in the present embodiment, the opening diameter of the locking screw mounting hole 25 is larger on the outside than on the inside, which facilitates quick disassembly and assembly, and specifically preferably, in the present embodiment, the locking screw mounting hole 25 is in the form of a waist-shaped hole; when disassembling the radiator fan assembly 20, the locking screw 26 does not need to be completely removed, and the locking screw 26 remaining on the radiator shell 10 can still serve as a positioning and guiding function.

[0030] Preferably, in the present embodiment, the outer periphery of the plate surface of the fan bracket 22 is in the form of a bend (specifically provided with two bend structures 22e), and the plate surface 22b in the middle is convex relative to the plate surface 22c on the outer periphery, which can flexibly adjust the distance between the radiator shell 10 and the radiator fan assembly 20, so that the plate surface 22b in the middle is in corresponding contact with the radiator fan body 21, which ensures the installation effect and facilitates the heat dissipation effect.

[0031] Preferably, in order to achieve the quick installation effect of the radiator fan assembly 20, in the present embodiment, the outer periphery of the plate surface in the middle, the outer periphery of the radiator fan body 21, and the outer periphery of the protective screen 23 are respectively provided with a plurality of mounting holes arranged correspondingly, and the fasteners (specifically screws 27 and nuts 28) are used to achieve the fastening and locking installation cooperation with the mounting holes; further preferably, in the present embodiment, the plate surface 22b in the middle is in the form of a quadrilateral, and a circular opening 22d is provided on the inner periphery thereof; wherein the radiator fan body 21 is located on the front face of the plate surface 22b in the middle, the protective screen 23 is located on the back face of the plate surface 22b in the middle, and the circular opening 22d is correspondingly arranged with the protective screen 23, which facilitates the simultaneous achievement of good heat dissipation and installation effect.

[0032] The installation and disassembly process of the present embodiment is further described in combination with the above-mentioned installation structure provided in the present embodiment:

[0033] Referring to Figure 2 When initially installed, the radiator fan body 21 and the protective screen 23 are respectively fixed to the fan bracket 22 through the fastening of the screws 27 and the nuts 28, then the second plug-in part b is inserted into the bracket plug-in part opening 22a on the fan bracket 22 to form the radiator fan assembly 20; then, according to the above-mentioned installation structure, the radiator fan assembly 20 is installed on the radiator shell 10 through the locking screw 26, and the installation is completed. Figure 1The assembly direction shown assembles the heat dissipation fan assembly 20 to the radiator shell 10, and the heat dissipation fan assembly 20 is inserted to the bottom along the buckle 30 direction to realize the limiting clamping with the radiator shell 10; at this time, the first plug-in a and the second plug-in b have completed the close connection; finally, a locking screw 26 is tightened according to the torque required by the production process, and the installation of the frequency converter heat dissipation fan is completed.

[0034] When the heat dissipation fan assembly 20 needs to be replaced on site, the locking screw 26 is loosened by about 3-5mm, at this time the heat dissipation fan assembly 20 has the freedom to slide to the side of the radiator shell 10, then the heat dissipation fan assembly 20 is pulled out in the direction of the buckle 30 and then lifted up, at this time the failed heat dissipation fan assembly 20 has completed the removal; the standby heat dissipation fan assembly 20 is assembled according to the assembly direction shown Figure 1 The assembly direction shown assembles to the radiator shell 10, the heat dissipation fan assembly 20 is inserted to the bottom along the buckle direction, and finally the loosened locking screw 26 is tightened according to the torque required by the production process, and the replacement of the heat dissipation fan assembly 20 is quickly completed.

[0035] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0036] In addition, it should be understood that although the present application is described in the specification in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A mounting structure for a frequency converter cooling fan, characterized in that, The device includes a cooling fan assembly mounted on a radiator housing; the cooling fan assembly includes a cooling fan body, a fan bracket, and a protective net that are fixedly installed as one unit; wherein, the fan bracket is engaged with the radiator housing by several snap-fit ​​fasteners, the cooling fan body is located inside the radiator housing, and the protective net is located outside the radiator housing; The fan bracket and the radiator housing are respectively provided with bracket connector openings and housing connector openings that are distributed in a corresponding manner. A second connector is inserted into the bracket connector opening and a first connector is inserted into the housing connector opening. The second connector and the first connector are tightly connected.

2. The mounting structure of the inverter cooling fan according to claim 1, characterized in that, The fan bracket is provided with several buckles, and the heat sink housing is provided with a corresponding slot for each buckle. Each buckle is engaged with the corresponding slot on the heat sink housing for limiting and locking.

3. The mounting structure of the inverter cooling fan according to claim 1, characterized in that, Both the bracket connector opening and the housing connector opening adopt a panel mounting structure; wherein, the fan bracket includes a plug-in opening panel block that bends upward along the surface of the fan bracket, and the bracket connector opening is located on the plug-in opening panel block.

4. The mounting structure of the inverter cooling fan according to claim 1, characterized in that, The fan bracket has one or more spaced buckles on its left and right sides; and the bracket connector opening is located on the front or rear side.

5. The mounting structure of the inverter cooling fan according to claim 4, characterized in that, The fan bracket has mounting holes for anti-loosening screws on its front or rear side, and the anti-loosening screws are used to lock the fan bracket to the heat sink housing.

6. The mounting structure of the inverter cooling fan according to claim 5, characterized in that, The mounting holes for the anti-loosening screws are open and not closed.

7. The mounting structure of the inverter cooling fan according to claim 6, characterized in that, The outer diameter of the anti-loosening screw mounting hole is larger than its inner diameter, which facilitates quick assembly and disassembly.

8. The mounting structure of the inverter cooling fan according to claim 1, characterized in that, The outer periphery of the fan bracket plate is bent, and the middle plate is raised relative to the outer periphery plate, so that the middle plate makes corresponding contact with the cooling fan body.

9. The mounting structure of the inverter cooling fan according to claim 8, characterized in that, The outer periphery of the central plate, the outer periphery of the cooling fan body, and the outer periphery of the protective mesh are respectively provided with several mounting holes arranged in a corresponding manner. Fasteners are used to achieve a tight and locked installation with each mounting hole.

10. The mounting structure of the inverter cooling fan according to claim 8 or 9, characterized in that, The middle panel is quadrilateral in shape and has a circular opening on its inner circumference; the cooling fan body is located on the front of the middle panel, the protective mesh is located on the back of the middle panel, and the circular opening is corresponding to the protective mesh.

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