CN219932485U

CN219932485U - Variable frequency fan

Info

Publication number: CN219932485U
Application number: CN202321266362.6U
Authority: CN
Inventors: 刘宏令
Original assignee: Nanjing Tedian Electromechanical Co ltd
Current assignee: Nanjing Tedian Electromechanical Co ltd
Priority date: 2023-05-24
Filing date: 2023-05-24
Publication date: 2023-10-31
Anticipated expiration: 2033-05-24

Abstract

The utility model belongs to the technical field of variable frequency fans, and particularly relates to a variable frequency fan which comprises a fan shell, a connecting piece, a supporting piece, a fan blade and a limiting piece, wherein the connecting piece is matched and arranged on the fan shell, the supporting piece is fixedly connected in a cavity of the fan shell, the fan blade is matched and connected on the supporting piece, and the fan blade and the limiting piece are matched and arranged. According to the variable frequency fan, the front cover can be conveniently and fast installed and detached on the fan shell through the matching design of the connecting piece, the overhauling and using effects of the variable frequency fan in the later period are improved, after the variable frequency fan is used for a long time and the fan blade is aged and damaged, when the limiting piece is conveniently and fast detached from the rotating shaft, the damaged fan blade can be conveniently and independently replaced, and compared with the traditional integral fan blade, when the fan blade is replaced, the undamaged fan blade is required to be replaced together, so that the material is wasted, and the fan blade of the variable frequency fan can reduce the later maintenance cost.

Description

Variable frequency fan

Technical Field

The utility model relates to the technical field of variable frequency fans, in particular to a variable frequency fan.

Background

The fan is widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and induced air of boilers and industrial furnaces, cooling and ventilation in air conditioning equipment and household appliances, the variable frequency fan belongs to the fan in the same way, the fan can adjust frequency to achieve better effect during operation, the fan blade of the existing variable frequency fan is generally designed as a whole, after the variable frequency fan is used for a long time, the fan blade can be aged and damaged, when the fan blade is replaced, the whole fan blade is required to be replaced, the fan blade at the undamaged part is replaced together, material waste is caused, and when the existing variable frequency fan is used, in order to ensure use safety, a protective cover is installed on a shell, and the protective cover is generally connected through bolts and is inconvenient during later installation and disassembly, so that maintenance efficiency is affected.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a variable frequency fan, which solves the problems that the fan blade of the variable frequency fan provided in the background art can not be independently replaced and the variable frequency fan is inconvenient to detach.

The utility model adopts the following technical scheme for realizing the purposes:

the utility model provides a variable frequency fan, includes fan casing, connecting piece, support piece, flabellum and locating part, the cooperation is provided with the connecting piece on the fan casing, fixedly connected with support piece in the cavity of fan casing, the cooperation is connected with the flabellum on the support piece, the flabellum sets up with the locating part cooperation, locating part threaded connection is on the support piece.

Further, the top of fan casing is provided with the converter, the bottom of fan casing is provided with the landing leg, one side of fan casing is provided with the protecgulum.

Further, the connecting piece comprises socket, notch, benefit piece, cutting and slot, socket fixed connection is in one side of fan casing, the notch has been seted up on the socket, notch and benefit piece cooperation setting, benefit piece fixed connection is covered in the front, the cooperation is provided with the cutting on socket and the benefit piece, the slot has been seted up on the cutting, the slot slip grafting is on socket and benefit piece.

Further, support piece comprises support frame, driving motor, axis of rotation, block groove and screw hole, support frame fixed connection is in the cavity of fan casing, the cooperation is provided with driving motor on the support frame, fixedly connected with axis of rotation on driving motor's the output shaft, annular array has seted up the block groove in the axis of rotation, the central part department of axis of rotation is provided with the screw hole.

Further, the fan blade comprises a blade and a clamping block, wherein the clamping block is fixedly connected to the blade and is inserted into the clamping groove in a sliding manner.

Further, the locating part comprises locating head and screw rod, the overhead fixedly connected with screw rod of locating, screw rod threaded connection is at the screw hole, the setting of spacing head conflict blade.

Compared with the prior art, the utility model provides a variable frequency fan, which has the following beneficial effects:

according to the variable frequency fan, the front cover can be conveniently and fast installed and detached on the fan shell through the matching design of the connecting piece, the overhauling and using effects of the variable frequency fan in the later period are improved, after the variable frequency fan is used for a long time and the fan blade is aged and damaged, when the limiting piece is conveniently and fast detached from the rotating shaft, the damaged fan blade can be conveniently and independently replaced, and compared with the traditional integral fan blade, when the fan blade is replaced, the undamaged fan blade is required to be replaced together, so that the material is wasted, and the fan blade of the variable frequency fan can reduce the later maintenance cost.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a connector structure according to the present utility model;

FIG. 3 is a schematic diagram of the overall internal structure of the present utility model;

FIG. 4 is a schematic view of the support structure of the present utility model;

FIG. 5 is a schematic view of a fan blade according to the present utility model;

fig. 6 is a schematic structural view of a limiting member according to the present utility model.

In the figure: 1. a blower housing; 101. a frequency converter; 102. a support leg; 103. a front cover; 2. a connecting piece; 201. a socket; 202. a groove is formed; 203. supplementing the block; 204. cutting; 205. a slot; 3. a support; 301. a support frame; 302. a driving motor; 303. a rotating shaft; 304. a clamping groove; 305. a threaded hole; 4. a fan blade; 401. a blade; 402. a clamping block; 5. a limiting piece; 501. a positioning head; 502. and (3) a screw.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

As shown in fig. 1-6, a variable frequency fan according to an embodiment of the present utility model includes a fan housing 1, a connecting piece 2, a supporting piece 3, a fan blade 4 and a limiting piece 5, where the variable frequency fan according to the design of the scheme can enable the fan housing 1 to be disassembled and opened conveniently by the design of the connecting piece 2, and facilitate disassembly and installation for use when the internal components are overhauled in the later stage, so as to improve the use effect, and through the matching design of the fan blade 4 and the supporting piece 3, the fan blade 4 at the damaged position can be replaced independently when the fan blade 4 is damaged, so as to reduce the waste of materials caused when the fan blade is replaced integrally, reduce the later maintenance cost, the fan housing 1 is matched with the connecting piece 2, the design of the frequency converter 101 satisfies the use effect of the variable frequency fan, and the frequency converter 101 is an existing disclosed technical means, and is not repeated in the remembering, when the front cover 103 needs to be disassembled, the inserting strip 204 can be pulled out in an upward sliding way, the supplementing block 203 can be taken out from the notch 202, so that the front cover 103 is disassembled and installed on the fan shell 1, the supplementing block 203 is positioned in the notch 202, the inserting strip 204 is inserted into the inserting seat 201 and the supplementing block 203, the bottom of the inserting seat 201 is provided with a bump, the inserting distance of the inserting strip 204 can be limited, the upper end of the inserting strip 204 cannot be inserted in a downward sliding way when the inserting seat 201 and the supplementing block 203 are flush, the front cover 103 can be disassembled conveniently through design, the supporting piece 3 is fixedly connected in the cavity of the fan shell 1, the fan blade 4 is matched and connected with the limiting piece 5, the limiting piece 5 is in threaded connection with the supporting piece 3, the rotation direction of locating part 5 threaded connection in screw hole 305 is opposite with the rotation direction of axis of rotation 303, ensure that can be when this variable frequency fan rotates, locating part 5 can not become flexible, after flabellum 4 damages, through kneading locating head 501, make screw rod 502 become flexible and take off in screw hole 305 inside, locating head 501 at this moment no longer contradicts block 402, just can take out the flabellum 4 of damage and change this moment, after changing new flabellum 4, with locating part 5 threaded connection on axis of rotation 303, locating head 501 can contradict block 402 and make its firm connection in block groove 304 this moment, ensure that can not appear becoming flexible when rotating, the device's overall design simple structure, and is convenient to use, improves later maintenance effect.

As shown in fig. 1, in some embodiments, a frequency converter 101 is disposed at the top of a fan housing 1, a supporting leg 102 is disposed at the bottom of the fan housing 1, a front cover 103 is disposed at one side of the fan housing 1, and the fan housing 1 is designed to satisfy the use effect of the frequency conversion fan, so as to ensure use safety.

As shown in fig. 2, in some embodiments, the connector 2 is composed of a socket 201, a slot 202, a complementary block 203, an inserting strip 204 and a slot 205, where the socket 201 is fixedly connected to one side of the fan housing 1, the socket 201 is provided with the slot 202, the slot 202 is matched with the complementary block 203, the complementary block 203 is fixedly connected to the front cover 103, the socket 201 and the complementary block 203 are matched with each other to provide the inserting strip 204, the slot 205 is provided with the inserting strip 204, the inserting strip 205 is slidingly inserted into the socket 201 and the complementary block 203, and the front cover 103 can be conveniently installed on the fan housing 1 due to the design of the connector 2, so that the convenience of installation and disassembly is improved.

As shown in fig. 4, in some embodiments, the support 3 is composed of a support frame 301, a driving motor 302, a rotating shaft 303, a clamping groove 304 and a threaded hole 305, the support frame 301 is fixedly connected in a cavity of the fan housing 1, the driving motor 302 is cooperatively arranged on the support frame 301, the rotating shaft 303 is fixedly connected to an output shaft of the driving motor 302, the clamping groove 304 is formed in an annular array on the rotating shaft 303, the threaded hole 305 is formed in the central position of the rotating shaft 303, the design of the support 3 meets the use requirement, and the support use effect in the fan housing 1 is ensured.

As shown in fig. 5, in some embodiments, the fan blade 4 is composed of a blade 401 and a clamping block 402, the clamping block 402 is fixedly connected to the blade 401, the clamping block 402 is slidably inserted into the clamping groove 304, the design of the fan blade 4 meets the use requirement, and the later maintenance cost can be reduced by independently replacing the design.

As shown in fig. 6, in some embodiments, the limiting member 5 is composed of a limiting head 501 and a screw 502, the screw 502 is fixedly connected to the limiting head 501, the screw 502 is in threaded connection with the threaded hole 305, the limiting head 501 abuts against the blade 401, and the limiting member 5 can enable the fan blade 4 to be firmly connected to the rotating shaft 303, so that convenience in installation is improved.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a variable frequency fan, includes fan casing (1), connecting piece (2), support piece (3), flabellum (4) and locating part (5), its characterized in that: the fan comprises a fan shell (1), wherein a connecting piece (2) is arranged on the fan shell (1) in a matched mode, a supporting piece (3) is fixedly connected in a cavity of the fan shell (1), fan blades (4) are connected to the supporting piece (3) in a matched mode, the fan blades (4) are arranged on the limiting piece (5) in a matched mode, and the limiting piece (5) is connected to the supporting piece (3) in a threaded mode.

2. The variable frequency fan of claim 1, wherein: the fan comprises a fan body (1), and is characterized in that a frequency converter (101) is arranged at the top of the fan body (1), supporting legs (102) are arranged at the bottom of the fan body (1), and a front cover (103) is arranged on one side of the fan body (1).

3. The variable frequency fan of claim 1, wherein: the connecting piece (2) comprises a socket (201), a notch (202), a supplement block (203), an inserting strip (204) and a slot (205), wherein the socket (201) is fixedly connected to one side of the fan shell (1), the socket (201) is provided with the notch (202), the notch (202) is matched with the supplement block (203), the supplement block (203) is fixedly connected to the front cover (103), the inserting strip (204) is matched with the supplement block (203), the inserting slot (205) is formed in the inserting strip (204), and the inserting slot (205) is slidably inserted into the socket (201) and the supplement block (203).

4. The variable frequency fan of claim 1, wherein: support piece (3) comprises support frame (301), driving motor (302), axis of rotation (303), block groove (304) and screw hole (305), support frame (301) fixed connection is in the cavity of fan casing (1), the cooperation is provided with driving motor (302) on support frame (301), fixedly connected with axis of rotation (303) on the output shaft of driving motor (302), block groove (304) have been seted up to annular array on axis of rotation (303), the central part department of axis of rotation (303) is provided with screw hole (305).

5. The variable frequency fan of claim 1, wherein: the fan blade (4) consists of a blade (401) and a clamping block (402), wherein the clamping block (402) is fixedly connected to the blade (401), and the clamping block (402) is slidably inserted into the clamping groove (304).

6. The variable frequency fan of claim 1, wherein: the limiting piece (5) is composed of a limiting head (501) and a screw rod (502), the screw rod (502) is fixedly connected to the limiting head (501), the screw rod (502) is in threaded connection with the threaded hole (305), and the limiting head (501) is arranged in a manner of abutting against the blade (401).