Protective cover for fan and fan thereof

Abstract

The utility model particularly relates to a protective cover for a fan and the fan. The protective cover (1) comprises a cover body (11), a positioning structure (12) and a sealing structure (13), wherein the positioning structure (12) and the sealing structure (13) are arranged on the cover body (11); the cover body (11) is used for shielding the end part of a motor (3) of the fan; the positioning structure (12) is used for being connected to the fan; and the sealing structure (13) is used for sealing a rotating shaft of the motor (3). The cover body and the sealing structure are used for protecting the motor of the fan, so that the fan can be effectively prevented from being influenced by an oil contamination environment, the use reliability of the fan is improved, and meanwhile, the service life of the fan is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field, concretely relates to a protective cover for fan and fan thereof. BACKGROUND

[0002] The fan is a kind of machine that relies on input mechanical energy, improves gas pressure and sends gas. Because it has gas sending capacity, it is widely used in family, factory, tunnel, vehicle and various application scenarios. Especially in the process of being used at home, the fan can extract kitchen fume, to ensure the cleanliness of the kitchen.

[0003] Although the fan in the prior art effectively solves the technical problem of sending gas, when the fan faces complex and bad oil pollution conditions, the oil fume contained in the gas is easy to drill into the motor of the fan, thereby affecting the rotating speed of the motor, and in severe cases, it can even cause the motor of the fan to burn out, thereby existing the technical problems of reducing the performance of the fan and shortening the service life of the fan. UTILITY MODEL CONTENTS

[0004] The utility model provides a protective cover for fan in view of the technical problems, such as performance decline and life shortening, of fan in prior art applied in oil pollution scene, at least has the advantages such as good protection effect, strong applicability, convenient and simple maintenance.

[0005] First aspect

[0006] The utility model provides a protective cover for fan, the protective cover includes: cover body, positioning structure and sealing structure arranged in the cover body;

[0007] The cover body is used to shield the end of the motor of the fan;

[0008] The positioning structure is used to be connected to the fan;

[0009] The sealing structure is used to seal the rotating shaft of the motor.

[0010] Specifically, one of the main technical ideas of the utility model is to use the cover body and the sealing structure to protect the motor of the fan, thereby effectively avoiding the influence of the fan on the oil pollution environment, improving the use reliability of the fan, and prolonging the service life of the fan.

[0011] Further, the cover body includes a hole body located in the middle and an inwardly recessed arc-shaped body extending from one end of the hole body to the outer periphery.

[0012] Further, the arc-shaped body includes a backfolding oil storage body arranged at the outer edge.

[0013] Optionally, the positioning structure is used to fix the protective cover to the motor, or the fan blade.

[0014] Further, the positioning structure comprises a buckling type, a fastening type or an integrated type.

[0015] When the buckling type is used, the cover is assembled or disassembled by external force.

[0016] When the fastening type is used, the cover is assembled by a fastener.

[0017] When the integrated type is used, the cover is arranged on the motor or the fan blade by an integrated structure.

[0018] Optionally, the sealing structure is arranged at the other end of the hole.

[0019] Further, the sealing structure comprises a labyrinth, a sealing gasket or a locking thread.

[0020] Second aspect

[0021] The utility model provides a kind of fan, including the protective cover for fan of any possible embodiment provided by the first aspect.

[0022] Further, the fan comprises a motor and a fan blade.

[0023] The fan blade is fixed to the rotating shaft of the motor.

[0024] The protective cover is arranged between the fan blade and the motor.

[0025] Further, the protective cover completely shields the motor.

[0026] In summary, the utility model provides a kind of protective cover for fan and fan thereof, and the protective cover of main technical scheme at least has the following advantages: the utility model protects the motor of fan by cover and sealing structure, so as to effectively avoid the influence of fan by oil dirt environment, improve the use reliability of fan, and simultaneously prolong the service life of fan. BRIEF DESCRIPTION OF DRAWINGS

[0027] The utility model will be further described in detail below in combination with drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are only drawn for the purpose of explaining preferred embodiments, and therefore should not be regarded as the limitation to the scope of the utility model. In addition, unless specifically indicated, the drawings only schematically show the composition or structure of the described object conceptually and can include exaggerated display, and the drawings are not necessarily drawn to scale.

[0028] Figure 1 An embodiment of the utility model provides a structure schematic drawing of a protective cover for a fan,

[0029] Figure 2 An embodiment of the utility model provides an assembly structure schematic drawing of a fan,

[0030] 1, protective cover, 2, fan blade, 3, motor, 11, cover body, 12, positioning structure, 13, sealing structure, 111, hole body, 112, arc body, 113, oil storage body. Specific implementation

[0031] The utility model will be explained in detail below. Figure 1 And 2 The utility model will be explained in detail below.

[0032] In order to make the utility model's purpose, technical scheme and advantage more clear and obvious, the utility model will be explained in further detail below with the accompanying drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model and not to limit the utility model.

[0033] The main technical concept of the utility model is to use the cover body 11 and sealing structure 13 of the protective cover 1 to carry out primary separation and secondary blocking on the oil stain in the process of fan air delivery, thereby avoiding the oil stain in the air entering the motor 3 of the fan, and further improving the use performance and service life of the fan in the oil stain environment.

[0034] Further, please refer to Figure 1 The utility model discloses a structure schematic drawing of a protective cover 1 for a fan.

[0035] Example 1

[0036] The protective cover 1 provided by the utility model comprises a cover body 11, a positioning structure 12 and a sealing structure 13 arranged on the cover body 11, wherein the cover body 11 is used to shield the end of the motor 3 of the fan, the positioning structure 12 is used to be connected to the fan, and the sealing structure 13 is used to seal the rotating shaft of the motor 3. Therefore, the working principle of the utility model is that the cover body 11 provided by the utility model is installed on the end of the motor 3 of the fan through the positioning structure 12, so as to shield the end of the motor 3, and the rotating shaft of the motor 3 is further effectively sealed through the sealing structure 13. When the fan is running, the oil stain is adhered to the cover body 11 due to the existence of the cover body 11, so as to avoid the oil stain adhering to the end of the motor 3, and the oil stain is blocked outside the rotating shaft through the use of the sealing structure 13, so as to avoid the pollution of the oil stain to the motor.

[0037] Further, the cover body 11 comprises a hole body 111 located in the middle and an inwardly recessed arc-shaped body 112 extending from one end of the hole body 111 to the outer periphery. The hole body 111 is used to set the rotating shaft of the fan blade 2 or the rotating shaft of the motor 3, so that the protective cover 1 is placed between the fan blade 2 and the motor 3, which does not affect the rotation of the fan blade 2, and can well block the oil stains in the process of the fan blade 2 discharging gas. At the same time, the arc-shaped body 112 is provided with a slightly curved arc, which can effectively disperse the oil stains and avoid the accumulation of oil stains, facilitating the cleaning of the oil stains in the later period.

[0038] Further, the arc-shaped body 112 comprises a backfolding oil storage body 113 arranged on the outer edge. It is worth explaining that the oil storage body 113 has the function of temporarily storing oil stains, avoiding the accumulation of too much oil stains to cause secondary pollution due to dripping, and facilitating the user to clean the fan.

[0039] Optionally, the positioning structure 12 is used to fix the protective cover 1 to the motor 3 or the fan blade 2.

[0040] Further, the positioning structure 12 comprises a buckling type, a fastening type or an integrated type.

[0041] When the buckling type is adopted, the cover body 11 is assembled or disassembled by external force.

[0042] When the fastening type is adopted, the cover body 11 is assembled by fasteners.

[0043] When the integrated type is adopted, the cover body 11 is arranged on the motor 3 or the fan blade 2 by one-piece construction.

[0044] Exemplarily:

[0045] Figure 1 The positioning structure 12 adopts the buckling type, which is buckled into the motor 3 by buckling, facilitating the disassembly, replacement and cleaning of the protective cover 1 in the later period. At the same time, when the positioning structure 12 adopts the buckling type, the buckling part uses flexible material.

[0046] If the positioning structure 12 adopts the fastening type, two or more bolt counterbores can be arranged on the cover body 11, and the cover body 11 is fixed to the fan blade 2 or the motor 3 by bolts. The above structure is not shown in Figure 1 , which can be understood in combination with the conventional bolt fastening structure by referring to the fixing mode of the buckling type.

[0047] If the positioning structure 12 adopts the integrated type, the cover body 11 is manufactured into one whole with the fan blade 2 or the motor 3 by means of mold pouring, metal cutting or welding. The above structure is not shown in Figure 1 , which can be understood in combination with the conventional abrasive tool manufacturing, cutting manufacturing and welding manufacturing by referring to the fixing mode of the buckling type.

[0048] Optionally, the sealing structure 13 is arranged at the other end of the hole body 111.

[0049] Further, the sealing structure 13 comprises a labyrinth, a sealing gasket or a locking thread.

[0050] Exemplarily:

[0051] Figure 1 The sealing structure 13 adopts a labyrinth, cooperates with the motor 3 in a manner of the labyrinth, forms a breathing effect, can effectively prevent oil dirt from accumulating at the rotating shaft, avoids dust, oil dirt and the like from entering the inside of the motor 3, and thus effectively improves the service life of the fan.

[0052] If the sealing gasket and the locking thread are adopted, please refer to Figure 1 The labyrinth shown is referred to for understanding in combination with the conventional sealing gasket and the locking thread.

[0053] Further, please refer to Figure 2 The figure shows an assembly structure schematic diagram of a fan according to an embodiment of the utility model.

[0054] Embodiment 2

[0055] On the basis of embodiment 1, the utility model provides a fan, the fan includes a protective cover 1, a motor 3 and a fan blade 2, the fan blade 2 is fixed to the rotating shaft of the motor 3, and the protective cover 1 is arranged between the fan blade 2 and the motor 3. Meanwhile, the protective cover 1 completely shields the motor 3. When the fan works, due to the action of the protective cover 1, the oil dirt carried by the gas is blocked by the protective cover 1 in the process of the fan blade 2 in discharging the gas, thereby avoiding the oil dirt from entering the inside of the motor 3, and ensuring the running efficiency and the service life of the motor 3.

[0056] The utility model is introduced in detail above, the principle and the implementation mode of the utility model are described by applying specific examples in the utility model, and the above embodiment is only used for helping understanding the utility model and the core thought. It should be pointed out that for ordinary skilled person in the art, on the premise of not departing from the principle of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. A protective cover for a fan, characterized in that, The protective cover (1) comprises a cover body (11), a positioning structure (12) and a sealing structure (13) arranged on the cover body (11). The cover body (11) is used to shield the end of the motor (3) of the fan. The positioning structure (12) is used to be connected to the fan. The sealing structure (13) is used to seal the rotating shaft of the motor (3).

2. A protective cover for a fan as defined in claim 1, wherein The cover body (11) comprises a hole body (111) in the middle and an inwardly recessed arc-shaped body (112) extending from one end of the hole body (111) to the outer periphery.

3. A protective cover for a fan as defined in claim 2, wherein The arc-shaped body (112) comprises a backfolding oil storage body (113) arranged on the outer edge.

4. A protective cover for a fan as defined in claim 2, wherein, The positioning structure (12) is used to fix the protective cover (1) to the motor (3) or the fan blade (2) of the fan.

5. A protective cover for a fan as defined in claim 4, wherein, The positioning structure (12) comprises a snap-on type, a fastening type or an integrated type. When the snap-on type is adopted, the cover body (11) is assembled or disassembled by external force. When the fastening type is adopted, the cover body (11) is assembled by fasteners. When the integrated type is adopted, the cover body (11) is arranged on the motor (3) or the fan blade (2) by integral construction.

6. A protective cover for a fan as defined in claim 2, wherein The sealing structure (13) is arranged on the other end of the hole body (111).

7. A protective cover for a fan as defined in claim 6, wherein The sealing structure (13) comprises a labyrinth, a sealing gasket or a locking thread.

8. A fan, characterized by A protective cover (1) for a fan according to any one of claims 1-7 is provided.

9. A fan as claimed in claim 8, wherein The fan comprises a motor (3) and a fan blade (2). The fan blade (2) is fixed to the rotating shaft of the motor (3). The protective cover (1) is arranged between the fan blade (2) and the motor (3).

10. A fan as claimed in claim 9, wherein The protective cover (1) completely shields the motor (3).

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