CN220522855U - Fan with fan body - Google Patents

Abstract

The utility model discloses a fan, which comprises: the motor seat is internally provided with an electric driving piece; the fan head is detachably connected with the motor base, fan blades are arranged in the fan head, and the fan blades are in power connection with the electric driving piece; the protection cover plate is connected with the end cover of the motor base, is positioned at one end of the motor base towards the fan head, and is positioned at one side of the fan head towards the electric driving piece, and the distance between the protection cover plate and the electric driving piece is larger than the set distance. According to the fan disclosed by the utility model, the protective cover plate is arranged at one end of the motor base, which faces the fan head, and can shield the electric driving part, meanwhile, the creepage distance between the electric driving part and the end part of the motor base can be increased, so that the fan head and the motor base are prevented from being damaged by the current of the electric driving part when being disassembled and assembled by a user, and the safety of the fan used by the user is improved.

Description

Fan with fan body

Technical Field

The utility model relates to the technical field of household appliances, in particular to a fan.

Background

Along with the improvement of the living standard of people, the health consciousness of people is gradually enhanced, and the fan is used as a necessary electrical appliance in daily life. In the related art, be equipped with driving motor in the fan, driving motor is electrified, appears driving motor exposing or take place the creepage phenomenon easily at the user dismantles the fan in-process, and the security is relatively poor, has the space of improvement.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a fan, wherein the end part of the motor base is provided with the protective cover plate, so that the phenomenon that the driving motor is exposed or creeps up is avoided, and the safety of the fan is improved.

According to an embodiment of the utility model, a fan includes: the motor seat is internally provided with an electric driving piece; the fan head is detachably connected with the motor base, fan blades are arranged in the fan head, and the fan blades are in power connection with the electric driving piece; the protection cover plate is connected with the end cover of the motor base, is positioned at one end of the motor base towards the fan head, and is positioned at one side of the fan head towards the electric driving piece, and the distance between the protection cover plate and the electric driving piece is larger than the set distance.

According to the fan provided by the embodiment of the utility model, the protective cover plate is arranged at one end of the motor base, which faces the fan head, and can shield the electric driving piece, meanwhile, the creepage distance between the electric driving piece and the end part of the motor base can be increased, so that the fan can be prevented from being damaged by the current of the electric driving piece when the fan head and the motor base are disassembled and assembled, and the safety of the fan used by a user is improved.

According to the fan of some embodiments of the present utility model, the output shaft of the electric driving member is connected with a first coupling member, the fan blade is provided with a second coupling member in power connection with the first coupling member, the protective cover plate surrounds the output shaft, and the first coupling member is limited and pressed against one side of the protective cover plate, which faces the fan head, along the axial direction.

According to the fan of some embodiments of the present utility model, an end surface of the motor base is provided with a mounting boss, the output shaft penetrates through the mounting boss, and the protective cover plate is sleeved outside the mounting boss.

According to some embodiments of the utility model, the first coupling member is detachably connected to the output shaft via a connecting member.

According to the fan of some embodiments of the present utility model, a connection hole is formed at an end portion of the output shaft, the first coupling member is provided with a mounting hole penetrating along an axial direction, and the connection member is adapted to penetrate through the mounting hole and extend into the connection hole to be connected and fixed.

According to the fan of some embodiments of the present utility model, the motor base is provided with a first plug ring, the fan head is provided with a second plug ring, the first plug ring is in plug connection with the second plug ring and defines an installation space, the first coupling piece and the second coupling piece are coupled and connected in the installation space, and the protective cover plate is located in the installation space.

According to some embodiments of the utility model, the motor base is provided with a first connecting portion, the protective cover plate is provided with a second connecting portion, and the second connecting portion is detachably connected with the first connecting portion.

According to some embodiments of the utility model, one of the first connecting portion and the second connecting portion is configured as a clamping hole, and the other is configured as a buckle, and the buckle is in clamping connection with the clamping hole; the first connecting portions and the second connecting portions are multiple, and the first connecting portions and the second connecting portions are connected in one-to-one correspondence.

According to the fan of some embodiments of the present utility model, a first installation cavity is formed in the motor base, the electric driving part is installed in the first installation cavity, the motor base is provided with an air inlet hole and a first heat dissipation hole which are communicated with the first installation cavity, a second installation cavity is formed in the fan head, the fan blade is installed in the second installation cavity, and the fan head is provided with an air outlet hole and a second heat dissipation hole which are communicated with the second installation cavity; the first radiating holes are communicated with the second radiating holes, and the protective cover plate is provided with middle radiating holes communicated between the first radiating holes and the second radiating holes.

According to the fan of some embodiments of the present utility model, the first heat dissipation holes, the middle heat dissipation holes and the second heat dissipation holes are all multiple, and the first heat dissipation holes, the middle heat dissipation holes and the second heat dissipation holes are directly opposite to each other in a one-to-one correspondence manner along the axial direction of the electric driving piece; the middle heat dissipation holes are multiple, and the middle heat dissipation holes are distributed in multiple rows and multiple columns on the protective cover plate.

According to some embodiments of the utility model, the protective cover is made of an insulating material.

According to some embodiments of the utility model, the motor base comprises a rear housing and a front cover plate, the rear housing defines a first mounting cavity which is open forward, the front cover plate is detachably connected to the front side of the rear housing, the front cover plate is connected with the fan head, and the protective cover plate is connected to one side of the front cover plate, which is away from the rear housing.

According to some embodiments of the utility model, the fan further comprises a base, the base is suitable for being supported on the placement surface, and the motor base is mounted on the base.

According to some embodiments of the utility model, the fan head is independently detachable with respect to the motor base; and/or the fan head is suitable for being connected with the motor base along a first direction when in an initial position, the first direction is intersected with a vertical direction, and the fan head can swing up and down and/or left and right relative to the motor base from the initial position.

According to some embodiments of the utility model, the fan head is provided with an air outlet, the fan blade is configured as an axial flow fan blade, and the axial flow fan blade is suitable for driving the air flow in the fan head to flow to the air outlet along the axial direction of the axial flow fan blade; and/or the radial dimension of the fan head is greater than or equal to twice the radial dimension of the motor base at the position of the driving piece; and/or the ratio of the radial dimension to the axial dimension of the fan head is greater than or equal to 1.

According to some embodiments of the utility model, the fan head is adapted to be connected to the motor base along a first direction when in an initial position, and the first direction intersects with a vertical direction;

and the fan head can swing up and down and/or left and right relative to the motor base from the initial position.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of the overall structure of a fan according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a connection structure between a base and a motor base of a fan according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a fan head according to an embodiment of the present utility model;

FIG. 4 is a front view of a fan head according to an embodiment of the present utility model;

FIG. 5 is a cross-sectional view at A-A in FIG. 4;

FIG. 6 is a schematic perspective view of a motor mount according to an embodiment of the present utility model;

FIG. 7 is a front view of a motor mount and base mount of an embodiment of the present utility model;

FIG. 8 is a schematic view of a cover plate of a motor mount according to an embodiment of the present utility model;

fig. 9 is a schematic view of a rear mesh enclosure of an embodiment of the present utility model.

Reference numerals:

the fan 100 is configured to provide a cooling air to the fan,

fan head 1, front net cover 11, rear net cover 12, second heat dissipation hole 121, second plug-in ring 122, air outlet hole 123, second coupling piece 13, second mounting cavity 14, fan blade 15,

motor cabinet 2, rear housing 21, air inlet 211, front cover 22, mounting boss 221, first heat dissipation hole 222, snap-in hole 223, first plug-in ring 224, electric drive member 23, output shaft 231, connection hole 232, first coupling member 24, mounting hole 241, first mounting cavity 25,

the protective cover plate 3, the buckle 31, the middle heat dissipation hole 32, the penetrating hole 33,

a base 4 supporting the tray 41.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The following describes a fan 100 according to an embodiment of the present utility model with reference to fig. 1 to 9, the fan 100 is provided with a protective cover plate 3 at the end of the motor base 2, and the protective cover plate 3 can effectively avoid the electric driving member 23 from being exposed or from generating a creepage phenomenon, which is beneficial to improving the safety of the fan 100 and ensuring the safety of a user using the fan 100.

As shown in fig. 1 to 9, a fan 100 according to an embodiment of the present utility model includes: motor cabinet 2, fan head 1 and protective cover 3.

Wherein, be equipped with electric drive piece 23 in the motor cabinet 2, fan head 1 links to each other with motor cabinet 2 detachably, is equipped with flabellum 15 in the fan head 1. That is, the fan head 1 in the present utility model can be detached separately from the motor base 2, so that a user can detach the fan head 1 from the motor base 2 and replace it separately, especially after the fan 100 is used for a long time, the user can detach the fan head 1 alone and clean the fan blades 15 in the fan head 1, thereby ensuring the cleanliness of the fan head 1, so that the fan 100 continuously delivers clean and comfortable airflow to the user, and improving the user experience.

And after the motor base 2 is connected with the fan head 1, when the electric driving piece 23 outputs power, the fan blade 15 can be driven to rotate, so that the air flow output towards the user is realized.

The protective cover plate 3 is disposed on an end surface of the motor base 2 facing the fan head 1, and a distance from the side of the protective cover plate 3 facing the fan head 1 to the electric driving member 23 is greater than a set distance. It should be noted that, the electric driving member 23 may be configured as a driving motor, that is, the electric driving member 23 is an electrified member, when the user dismantles and separates the fan head 1 from the motor base 2, the driving motor is easily exposed from the motor base 2 toward one end of the fan head 1 or a creepage phenomenon occurs, and when the user performs a connection operation on the electric driving member 23 and the fan blade 11, current on the electric driving member 23 is easily led to the user.

In the utility model, the protection cover plate 3 is used for shielding the end face of the motor base 2 facing the fan head 1, so that the protection cover plate 3 shields the electric driving part 23, the electric driving part 23 is prevented from being exposed at one end of the motor base 2 facing the fan head 1, the hands of a user are prevented from being directly contacted with the electric driving part 23, meanwhile, the protection cover plate 3 is arranged to increase the distance between the electric driving part 23 and the hands of the user, and further increase the creepage distance between the electric driving part 23 and the hands of the user, thereby preventing a large amount of current from being led to the user, and improving the safety of the user. It should be noted that, the setting distance can be set according to the safety requirement, so that after the protective cover plate 3 is installed on the motor base 2, the creepage distance is increased, and the safety problem caused by the creepage phenomenon can not occur after the user contacts the end of the motor base 2.

According to the fan 100 of the embodiment of the utility model, the protective cover plate 3 is arranged at one end of the motor base 2, which faces the fan head 1, and the protective cover plate 3 can shield the electric driving piece 23, and meanwhile, the creepage distance between the electric driving piece 23 and the end part of the motor base 2 can be increased, so that the user is prevented from being injured by the current of the electric driving piece 23 when the fan head 1 and the motor base 2 are disassembled and assembled, and the safety of the user using the fan 100 is improved.

In some embodiments, the electric driving member 23 is connected with the first coupling member 24, the fan blade 15 is connected with the second coupling member 13, the second coupling member 13 is in power connection with the first coupling member 24, the first coupling member 24 is in power connection with the output shaft 231 of the electric driving member 23, and the first coupling member 24 is connected with the second coupling member 13 for power coupling, so that when the electric driving member 23 outputs power, the first coupling member 24 can drive the second coupling member 13 to rotate, and then the second coupling member 13 can drive the fan blade 15 to rotate. In the actual connection, one of the first coupling element 24 and the second coupling element 13 protrudes toward the other to achieve connection fixation of the two, in other words, at least one coupling element protrudes outside the corresponding housing, for example, the first coupling element 24 protrudes outside the housing of the motor base 2, or the second coupling element 13 protrudes outside the housing of the fan head 1, or both coupling elements protrude from the respective corresponding housing.

The protective cover 3 surrounds the output shaft 231, so that the electric driving member 23 can drive the first coupling member 24 to rotate through the output shaft 231 when power is output, and the first coupling member 24 can further drive the second coupling member 13 and the fan blades 15 to rotate. The output shaft 231 may extend through the casing of the motor base 2 to outside the motor base 2, in other words, one end of the output shaft 231 is connected to the electric driving member 23 in the motor base 2 and the other end is connected to the first coupling member 24 outside the motor base 2, so as to realize power transmission from inside the motor base 2 to outside the motor base 2.

The first coupling piece 24 is limited and pressed on one side of the protective cover plate 3 facing the fan head 1 along the axial direction, in other words, when the first coupling piece 24 is in a connection state with the output shaft 231, the protective cover plate 3 is always limited and installed on the end face of the motor base 2, so that the protective cover plate 3 can always play a role in shielding and increasing the creepage distance on the end face of the motor base 2 in the power coupling process of the electric driving piece 23 and the first coupling piece 24, and the motor base 2 is in a safe state when the electric driving piece 23 is powered on.

Likewise, the first coupling piece 24 limits the protective cover plate 3, so that the protective cover plate 3 can be prevented from being detached by the bare hand of a user when the first coupling piece 24 is not detached, the protective cover plate 3 can effectively protect the electric driving piece 23, and the safety of the motor cabinet 2 is ensured.

In some embodiments, the end face of the motor base 2 is provided with a mounting boss 221, as shown in fig. 5 and 7, the mounting boss 221 is protruding from the end face of the motor base 2, where the end face of the motor base 2 is provided with an avoidance hole, and the avoidance hole penetrates through the mounting boss 221, during actual installation, the electric driving member 23 is installed in the motor base 2, the output shaft 231 penetrates through the avoidance hole, that is, the output shaft 231 penetrates through the mounting boss 221, and the protective cover plate 3 is sleeved outside the mounting boss 221.

As shown in fig. 5, the left side of the protective cover plate 3 and the end surface of the motor base 2 are relatively distributed, the mounting boss 221 penetrates the protective cover plate 3, the first coupling piece 24 is connected with the right end of the output shaft 231, and at least part of the first coupling piece 24 is located on the right side of the protective cover plate 3 to limit and press the right side surface of the protective cover plate 3, so that the position of the protective cover plate 3 in the axial direction is relatively fixed, and the protective cover plate 3 is stably sleeved outside the mounting boss 221.

Wherein, through locating the cover plate 3 cover outside the installation boss 221, can make the installation boss 221 carry out radial spacing to the cover plate 3 to make the cover plate 3 in radial position stability, reduce the connection stress of cover plate 3 and the hookup location department of motor cabinet 2, guarantee the installation stability of cover plate 3 on motor cabinet 2.

In some embodiments, the first coupling member 24 is removably connected to the output shaft 231 via a connector to enable flexible removal of the first coupling member 24 relative to the output shaft 231, thereby facilitating removal and replacement of the first coupling member 24 by a user. Wherein the connection member may be constructed in a screw or the like structure to flexibly connect the first coupling member 24 with the output shaft 231 through the connection member.

In practical use, for example, when the fan blade 15 is driven to rotate by the electric driving member 23, the first coupling member 24 may be fixedly connected to the end of the output shaft 231 through the connecting member, so that the first coupling member 24 rotates synchronously with the output shaft 231. After the fan head 1 is detached relative to the motor base 2, the first coupling piece 24 can be detached from the output shaft 231, so that the first coupling piece 24 is replaced or cleaned, the first coupling frame is always in a good structural state, and the stability of power transmission is ensured.

And, after the first coupling piece 24 is mounted on the output shaft 231 through the connecting piece, the first coupling piece 24 can axially limit the protective cover plate 3, namely, the user needs to detach the first coupling piece 24 when detaching the protective cover plate 3, so that the user is well prevented from directly detaching the protective cover plate 3 by bare hands, and effective protection of charged components is ensured.

In some embodiments, the end of the output shaft 231 is provided with a connecting hole 232, the first coupling member 24 is provided with a mounting hole 241 penetrating through the first coupling member in the axial direction, and the connecting member is suitable for penetrating through the mounting hole 241 and extending into the connecting hole 232 for connection and fixation, so that the connecting member limits and fixes the first coupling member 24 in the axial direction.

Specifically, as shown in fig. 5, the right end of the output shaft 231 is provided with a connecting hole 232, the connecting hole 232 is configured as a threaded hole, the connecting hole 232 is opened to the right, the mounting hole 241 is formed in the middle of the first coupling member 24, the axis of the mounting hole 241 coincides with the axis of the first coupling member 24, the mounting hole 241 is penetrated in the left-right direction, wherein the connecting member is configured as a screw, the screw comprises a head and a rod portion, the rod portion penetrates the mounting hole 241 and extends into the connecting hole 232 so as to enable the rod portion to be in threaded fit with the connecting hole 232, and meanwhile, the head is pressed against one end of the first coupling member 24, which is away from the output shaft 231, so that the first coupling member 24 is fixedly mounted on the end of the output shaft 231 through the connecting member, and therefore the connection and fixation of the first coupling member 24 and the electric driving member 23 are realized, and the structure is simple, and the installation is convenient.

Therefore, when in actual installation, the protective cover plate 3 can be sleeved outside the installation boss 221, and then the installation hole 241 of the first coupling piece 24 is opposite to the connection hole 232 of the output shaft 231, so that at least part of the first coupling piece 24 is positioned in the axial direction of the protective cover plate 3, then the connecting piece is inserted and screwed from one side, deviating from the output shaft 231, of the first coupling piece 24, the connecting piece axially limits the first coupling piece 24, and meanwhile, the first coupling piece 24 axially limits the protective cover plate 3, so that effective limiting of the protective cover plate 3 is realized, and the protective cover plate 3 is not detached by bare hands.

In some embodiments, the motor base 2 is provided with a first connecting portion, the protective cover plate 3 is provided with a second connecting portion, and the second connecting portion is detachably connected with the first connecting portion, so that the protective cover plate 3 can be flexibly detached and installed from the motor base 2, and a user can conveniently replace and maintain the protective cover plate 3.

Wherein, the terminal surface towards each other of motor cabinet 2 and protective cover 3 can be located to first connecting portion and second connecting portion to after protective cover 3 cover locates motor cabinet 2, can realize the connection fixedly of first connecting portion and second connecting portion smoothly, simple structure, simple to operate.

In some embodiments, one of the first connection portion and the second connection portion is configured as a clamping hole 223, and the other is configured as a buckle 31, and the buckle 31 is connected with the clamping hole 223 in a clamping manner, so that when the protective cover plate 3 is connected with the motor base 2, a separate connecting piece is not required to be arranged for connection and fixation, which is not only beneficial to realizing quick installation, but also beneficial to reducing installation cost.

And when specifically designing, can construct first connecting portion into joint hole 223, second connecting portion constructs for buckle 31, perhaps first connecting portion constructs for buckle 31, and second connecting portion constructs for joint hole 223 to make when protective cover 3 installs in motor cabinet 2, buckle 31 stretches into in the joint hole 223 and realizes the connection of protective cover 3 and motor cabinet 2, and design mode is nimble, can set up in a flexible way according to actual need.

As shown in fig. 7, the end face of the motor base 2 is provided with a clamping hole 223, meanwhile, the left side face of the protective cover plate 3 is provided with a convex buckle 31, and the end part of the buckle 31 is provided with a clamping hook, so that after the buckle 31 extends to the clamping hole 223, the clamping hook can be clamped to one side of the clamping hole 223 away from the protective cover plate 3, and the clamping process is easy to realize.

In some embodiments, the first connecting portions and the second connecting portions are multiple, and the first connecting portions and the second connecting portions are connected in a one-to-one correspondence, so that the protective cover plate 3 is fixed to the motor base 2 at multiple positions, thereby enhancing the connection stability of the protective cover plate 3 on the motor base 2.

Specifically, in actual design, a plurality of clamping holes 223 can be formed in the end face of the motor base 2, the plurality of clamping holes 223 are distributed at intervals in the circumferential direction of the motor base 2, meanwhile, a plurality of buckles 31 are arranged on the end face of the protective cover plate 3, the plurality of buckles 31 are distributed at intervals in the circumferential direction of the protective cover plate 3, and after the plurality of buckles 31 are matched with the plurality of clamping holes 223 in a one-to-one corresponding clamping manner, the protective cover plate 3 is clamped and fixed with the motor base 2 at a plurality of positions in the circumferential direction, so that stable installation of the protective cover plate 3 is realized.

In some embodiments, a first mounting cavity 25 is formed in the motor base 2, the electric driving part 23 is mounted in the first mounting cavity 25, the motor base 2 is provided with an air inlet 211 and a first heat dissipation hole 222 which are communicated with the first mounting cavity 25, a second mounting cavity 14 is formed in the fan head 1, the fan blades 15 are mounted in the second mounting cavity 14, the fan head 1 is provided with an air outlet 123 and a second heat dissipation hole 121 which are communicated with the second mounting cavity 14, and the first heat dissipation hole 222 is communicated with the second heat dissipation hole 121.

Thus, the air inlet 211, the first mounting cavity 25, the first heat dissipation hole 222, the second heat dissipation hole 121, the second mounting cavity 14 and the air outlet 123 are sequentially communicated from the whole structure of the fan 100, so that an internal flow passage from the air inlet 211 to the air outlet 123 and passing through the first mounting cavity 25, the first heat dissipation hole 222, the second heat dissipation hole 121 and the second mounting cavity 14 is formed. It will be appreciated that the electric driving member 23 is installed in the first installation cavity 25, and the fan blade 15 is installed in the second installation cavity 14, when the electric driving member 23 outputs power, the fan blade 15 rotates, the fan blade 15 drives the air flow in the second installation cavity 14 to flow out from the air outlet 123, at this time, the second installation cavity 14 forms a negative pressure, so that the external air flow is continuously supplemented into the second installation cavity 14 from the air inlet 211, the first installation cavity 25, the first heat dissipation hole 222 and the second heat dissipation hole 121, and continuous update of the internal air flow is formed. When the air flow flows through the electric driving member 23, heat generated by the electric driving member 23 can be dissipated, so that the temperature of the electric driving member 23 in the operation process is reduced, and the heat dissipation effect on the electric driving member 23 is realized.

The protective cover 3 is provided with an intermediate heat dissipation hole 32 communicated between the first heat dissipation hole 222 and the second heat dissipation hole 121, that is, after the air flows out from the first heat dissipation hole 222, the air flows through the intermediate heat dissipation hole 32 to the second heat dissipation hole 121 to enter the second mounting cavity 14, so that the air flows from the first heat dissipation hole 222 to the second heat dissipation hole 121, in other words, the protective cover 3 is arranged so as not to influence the heat dissipation inside the electric driving piece 23, and the inside of the electric driving piece 23 can be effectively dissipated.

In some embodiments, the first heat dissipation holes 222, the middle heat dissipation holes 32 and the second heat dissipation holes 121 are all multiple, and the first heat dissipation holes 222, the middle heat dissipation holes 32 and the second heat dissipation holes 121 are directly opposite to each other along the axial direction of the electric driving member 23, so that the first heat dissipation holes 222, the middle heat dissipation holes 32 and the second heat dissipation holes 121 form multiple groups of heat dissipation channels, thereby facilitating the increase of the air flow between the air inlet holes 211 and the air outlet holes 123, and enhancing the effective heat dissipation of the electric driving member 23 and the coordination parts of the first coupling member 24 and the second coupling member 13.

As shown in fig. 5, an installation space is formed between the motor base 2 and the fan head 1, one side of the installation space is communicated with the first heat dissipation hole 222, the other side of the installation space is communicated with the second heat dissipation space, the first coupling piece 24 and the second coupling piece 13 are both located in the installation space and are in power coupling in the installation space, and meanwhile, the protective cover plate 3 is also installed in the installation space. In this way, after the air flow enters the installation space from the first heat dissipation hole 222, heat dissipation can be performed on the matching position of the first coupling piece 24 and the second coupling piece 13 in the installation space, so that the temperature of the matching position of the two coupling pieces is reduced, structural deformation caused by overhigh temperature of the coupling pieces is avoided, the stability and reliability of the structure are improved, and the air flow after heat dissipation can enter the second installation cavity 14 from the second heat dissipation hole 121, so that the air flow further flows out from the air outlet hole 123.

Therefore, the protective cover plate 3 solves the problems of exposing the electric driving piece 23 and avoiding the creepage phenomenon, does not influence the internal heat dissipation of the fan 100, and is beneficial to improving the safety and reliability of the fan 100.

In some embodiments, the number of the intermediate heat dissipation holes 32 is plural, and the plurality of intermediate heat dissipation holes 32 are distributed in a plurality of rows and columns on the protective cover plate 3, so that the air flow on the protective cover plate 3 can be increased, which is beneficial to realizing rapid heat dissipation.

As shown in fig. 8, the middle part of the protective cover plate 3 is provided with a penetrating hole 33, the penetrating hole 33 is used for penetrating the avoidance mounting boss 221, and the output shaft 231 of the electric driver 23 extends out from the penetrating hole 33. The number of the intermediate heat dissipation holes 32 is plural, and the plurality of intermediate heat dissipation holes 32 are distributed around the penetrating holes 33, as shown in fig. 8, the plurality of intermediate heat dissipation holes 32 are distributed in a plurality of rows in the circumferential direction of the protective cover plate 3 and in a plurality of rows in the radial direction of the protective cover plate 3, thereby well increasing the airflow flux of the protective cover plate 3 and ensuring the heat dissipation effect of the fan 100.

It should be noted that, the air inlet 211 is plural, and the air inlet 211 can be used for air inlet from different directions, as shown in fig. 5 and 6, the air inlet 211 is provided on the left end face of the motor base 2, and the air inlet 211 is also provided on the bottom of the motor base 2, so as to simultaneously air from the left end and the bottom of the motor base 2, and increase the air inlet amount. Meanwhile, in the process of flowing the air flow from the first installation cavity 25 to the second installation cavity 14, the air flow can flow from different paths, such as the first heat dissipation hole 222, the middle heat dissipation hole 32 and the second heat dissipation hole 121, and also can flow from the hole where the output shaft 231 is located, the penetrating hole 33 and the hole where the second coupling piece 13 is located, so that two air flow paths are formed, the air flow is increased, and the heat dissipation efficiency is improved.

In some embodiments, the motor base 2 is provided with a first plug ring 224, the fan head 1 is provided with a second plug ring 122, the first plug ring 224 is in plug connection with the second plug ring 122 and defines an installation space, the first coupling piece 24 and the second coupling piece 13 are coupled and connected in the installation space, and the protective cover plate 3 is located in the installation space. As shown in fig. 2, a first inserting ring 224 is disposed at the right end of the motor base 2, a second inserting ring 122 is disposed at the left side surface of the fan head 1, the first inserting ring 224 and the second inserting ring 122 are in inserting fit, the outer diameter of the first inserting ring 224 can be larger than the outer diameter of the second inserting ring 122, namely, the first inserting ring 224 is used as an outer inserting ring, the second inserting ring 122 is used as an inner inserting ring, and after the first inserting ring 224 and the second inserting ring are in inserting fit, an installation space between the motor base 2 and the fan head 1 is formed in the first inserting ring 224.

In other words, one side of the installation space is communicated with the first heat dissipation hole 222, and the other side is communicated with the second heat dissipation space, and the first coupling piece 24 and the second coupling piece 13 are both located in the installation space and are in power coupling in the installation space, and meanwhile, the protective cover plate 3 is also installed in the installation space. In this way, after the air flow enters the installation space from the first heat dissipation hole 222, heat dissipation can be performed on the matching position of the first coupling piece 24 and the second coupling piece 13 in the installation space, so that the temperature of the matching position of the two coupling pieces is reduced, structural deformation caused by overhigh temperature of the coupling pieces is avoided, the stability and reliability of the structure are improved, and the air flow after heat dissipation can enter the second installation cavity 14 from the second heat dissipation hole 121, so that the air flow further flows out from the air outlet hole 123.

Therefore, the protective cover plate 3 solves the problems of exposing the electric driving piece 23 and avoiding the creepage phenomenon, does not influence the internal heat dissipation of the fan 100, and is beneficial to improving the safety and reliability of the fan 100.

Wherein, during actual installation, can set up the structure that closes soon at first grafting ring 224 and second grafting ring 122 to when fan head 1 installs in motor cabinet 2, can rotate second grafting ring 122 for first grafting ring 224, realize the two and close fixedly soon, simultaneously, can bear the weight of fan head 1 on motor cabinet 2, guarantee fan head 1 stable installation.

In some embodiments, the protective cover 3 is made of insulating material to prevent the current at the electric drive 23 from being led out of the protective cover 3, and increase the insulating thickness at the end face of the motor base 2, improving the safety of the fan 100.

In some embodiments, the motor base 2 includes a rear housing 21 and a front cover 22, as shown in fig. 2, the front cover 22 is connected to the front end of the rear housing 21, so that the front cover 22 and the front cover are connected together to be connected with the fan head 1, that is, an external plug ring is disposed on the front cover 22, so that the front cover 22 and the fan head 1 are detachably connected and fixed.

Wherein, in actual design, the rear housing 21 defines a first installation cavity 25 that is open forward, the front cover plate 22 is detachably connected to the front side of the rear housing 21 to shield the open side of the first installation cavity 25, the front cover plate 22 is connected with the fan head 1, the protective cover plate 3 is connected to the side of the front cover plate 22 facing away from the rear housing 21, and the electric driving member 23 is installed in the rear housing 21, so that the front cover plate 22 and the protective cover plate 3 jointly play a role in shielding and protecting the electric driving member 23.

And, fan head 1 can be set up to include preceding screen panel 11 and back screen panel 12, and back screen panel 12 is used for linking to each other with preceding apron 22 detachably, and preceding screen panel 11 links to each other with back screen panel 12, and air-out hole 123 can set up in preceding screen panel 11, and the axial both ends of flabellum 15 can support in preceding screen panel 11 and back screen panel 12 respectively simultaneously.

In some embodiments, fan 100 further comprises a base 4, base 4 being adapted to be supported on a resting surface, and motor mount 2 being mounted on base 4.

Specifically, as shown in fig. 1 and 2, the base 4 is located at the lower part of the fan 100, the motor base 2 is mounted at the upper end of the base 4, so that the motor base 2 and the base 4 can be connected, and the base 4 is used for supporting the motor base 2 and the fan head 1. Under the working and non-working state of the fan 100, the base 4 is supported on the placement surface, and as shown in fig. 1, a supporting disc 41 is formed at the bottom of the base 4, the supporting surface of the supporting disc 41 is large, so that the placement of the fan 100 is more stable, the fan 100 can be supported on the placement surface through the base 4, namely, the fan 100 can be placed on the floor, and the floor fan is favorable for the overall stable placement of the fan 100. The vertical height of the base 4 can be set to be larger, so that the motor base 2 and the fan head 1 are both positioned at relatively higher positions in the space, airflow conveying to a user is realized, and the vertical height of the base 4 can also be set to be smaller, so that the heights of the motor base 2 and the fan head 1 are lifted to a certain degree relative to a placement surface. Therefore, the motor base 2 can be flexibly arranged on the placement surface directly, the placement of the desktop is realized, even the wall hanging arrangement is realized, or the overall height of the fan 100 is flexibly adjusted through the bases 4 with different heights, so that the motor base is beneficial to being suitable for different types of application scenes, and the use requirements of different types of users are met, wherein the placement surface can be the ground or the desktop.

As shown in fig. 5, an air inlet 211 is formed at the connection between the bottom of the motor base 2 and the upper end of the base 4, so as to increase the air intake of the fan 100.

In some embodiments, the fan head 1 is integrally and independently detachable relative to the motor base 2, so that the fan head 1 can be completely and independently detached from the motor base 2, and when the fan 100 is cleaned by a user, the fan head 1 can be independently cleaned, thereby not only improving the cleaning efficiency, but also facilitating the increase of the cleaning frequency by the user, ensuring that the fan 100 can always blow fresh and clean wind, and improving the user experience.

It should be further noted that, in actual design, structural members such as fan head 1 and fan blades inside the fan head can be used as a whole, meanwhile, structural members such as motor base 2 and a motor inside the fan head can be used as a whole, when fan head 1 and motor base 2 are detached and installed integrally, the net cover body of fan head 1 and the shell of motor base 2 can be detached or connected directly, the detachment structure is simple, the connection relationship is not complex, the detachment time of fan head 1 relative to motor base 2 is greatly reduced, meanwhile, fan head 1 is detached from motor base 2 as a single body, a user can clean fan head 1 integrally, and the internal structural members of fan head 1 can be detached and cleaned, so that the cleaning requirement of the user is met.

In some embodiments, the fan head 1 is provided with an air outlet, and the fan blades 11 are configured as axial flow fan blades, and the axial flow fan blades are adapted to drive the air flow in the fan head 1 to flow along the axial direction of the axial flow fan blades to the air outlet. That is, the fan blade of the fan 100 of the present utility model is different from the conventional centrifugal fan blade, and can achieve axial air intake and axial air outlet, wherein, in actual operation, the axial fan blade rotates, and the airflow at the rear side of the axial fan blade is driven to flow forward along the axial direction thereof, and then the air outlet flowing to the front of the fan head 1 is conveyed towards the face of the user.

It should be noted that, the fan head 1 may be provided with an air inlet hole, the air inlet hole may be located at the rear side of the fan head 1, and the air inlet hole may also be located at the outer side of the periphery of the fan head 1, and the oblique air inlet may both achieve the air inlet effect of the fan head 1, and the air flow entering into the fan head 1 may flow to the axial rear end of the axial flow fan blade, and then flow forward along the axial direction under the effect of the axial flow fan blade, and especially, the air inlet hole may be provided at the rear side of the fan head 1, and meanwhile, the motor base 2 may be provided with a heat dissipation flow channel, so that the heat dissipation flow channel is communicated with the air inlet hole, and then the air flow is driven to flow from the air inlet hole to the user after dissipating heat from the driving member and the like in the heat dissipation process under the driving effect of the axial flow fan blade, not only being beneficial to air supply, but also may achieve the internal heat dissipation of the motor base 2.

In some embodiments, the radial dimension of the fan head 1 is greater than or equal to two times the radial dimension of the motor base 2 at the position of the driving element, and/or the ratio of the radial dimension to the axial dimension of the fan head 1 is greater than or equal to 1. Therefore, the fan in the utility model is different from the traditional cross flow wind wheel, and it is required to be noted that the traditional tower fan uses the cross flow wind wheel, and the radial dimension of each position of the tower fan in the axial direction has no obvious change, while the radial dimension of the fan head 1 in the utility model is far greater than the radial dimension of the motor base 2 at the driving part.

Meanwhile, compared with the centrifugal fan blade, the axial flow fan blade is beneficial to more stably placing the fan head 1 and the motor base 2, and ensures the stability of the position state of the fan 100.

In some embodiments, the fan head 1 is adapted to be connected to the motor base 2 in a first direction in an initial position, the first direction intersecting the vertical direction. That is, when the fan head 1 is at the initial position relative to the motor base 2, the fan head 1 can be moved along the first direction relative to the motor base 2, so that the fan head 1 and the motor base 2 are connected and fixed, if the first direction is along the horizontal direction, the fan head 1 can be mounted at the front end of the motor base 2 from front to back along the horizontal direction, and connection and fixation of the two along the horizontal direction are realized.

The first direction may also form a certain inclination angle with respect to the horizontal direction, and both the first direction and the first direction intersect with the vertical direction, that is, the first direction may incline upwards or downwards with respect to the horizontal direction, so that the installation of the fan head 1 is more flexible.

The fan head 1 is arranged to swing up and down and/or left and right relative to the motor base from an initial position, namely, after the fan head 1 is fixedly connected with the motor base 2, a user can adjust the angle of the fan head 1, for example, the fan head 1 and the motor base 2 are jointly arranged on the base 4, the fan head 1 can be driven to adjust and adjust in different directions up and down, left and right relative to the base 4, at the moment, the fan head 1 can be adjusted to have the axis parallel to the vertical direction, so that the adjusting range of the fan head 1 is larger, and the air supply requirement of the user in more directions is met.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (15)

1. A fan, comprising:

the motor seat is internally provided with an electric driving piece;

the fan head is detachably connected with the motor base, fan blades are arranged in the fan head, and the fan blades are in power connection with the electric driving piece;

the protection cover plate is connected with the end cover of the motor base, is positioned at one end of the motor base towards the fan head, and is positioned at one side of the fan head towards the electric driving piece, and the distance between the protection cover plate and the electric driving piece is larger than the set distance.

2. The fan of claim 1, wherein the output shaft of the electric driving member is connected with a first coupling member, the fan blade is provided with a second coupling member in power connection with the first coupling member, the protective cover plate surrounds the output shaft, and the first coupling member is limited and pressed against one side of the protective cover plate, which faces the fan head, along the axial direction.

3. The fan of claim 2, wherein an end face of the motor base is provided with a mounting boss, the output shaft penetrates through the mounting boss, and the protective cover plate is sleeved outside the mounting boss.

4. The fan of claim 2 wherein the first coupling member is removably connected to the output shaft by a connector.

5. The fan of claim 4, wherein the end of the output shaft is provided with a connecting hole, the first coupling member is provided with a mounting hole penetrating along the axial direction, and the connecting member is suitable for penetrating through the mounting hole and extending into the connecting hole to be fixedly connected.

6. The fan of claim 2, wherein the motor mount is provided with a first mating ring, the fan head is provided with a second mating ring, the first mating ring is mated with the second mating ring and defines a mounting space, the first coupling member and the second coupling member are coupled in the mounting space, and the protective cover is located in the mounting space.

7. The fan of claim 1, wherein the motor mount is provided with a first connection portion, the protective cover is provided with a second connection portion, and the second connection portion is detachably connected to the first connection portion.

8. The fan of claim 7, wherein one of the first and second connection portions is configured as a snap-fit hole and the other is configured as a snap-fit, the snap-fit being snap-fit connected to the snap-fit hole;

the first connecting portions and the second connecting portions are multiple, and the first connecting portions and the second connecting portions are connected in one-to-one correspondence.

9. The fan of claim 1, wherein a first installation cavity is formed in the motor base, the electric driving piece is installed in the first installation cavity, the motor base is provided with an air inlet hole and a first heat dissipation hole which are communicated with the first installation cavity, a second installation cavity is formed in the fan head, the fan blade is installed in the second installation cavity, and the fan head is provided with an air outlet hole and a second heat dissipation hole which are communicated with the second installation cavity;

the first radiating holes are communicated with the second radiating holes, and the protective cover plate is provided with middle radiating holes communicated between the first radiating holes and the second radiating holes.

10. The fan of claim 9, wherein the first heat dissipation holes, the middle heat dissipation holes and the second heat dissipation holes are all multiple, and the first heat dissipation holes, the middle heat dissipation holes and the second heat dissipation holes are opposite to each other in a one-to-one correspondence along the axial direction of the electric driving piece;

the middle heat dissipation holes are multiple, and the middle heat dissipation holes are distributed in multiple rows and multiple columns on the protective cover plate.

11. The fan of claim 1, wherein the protective cover plate is made of an insulating material.

12. The fan of claim 1, wherein the motor mount includes a rear housing defining a first mounting cavity open forward, and a front cover removably coupled to a front side of the rear housing, the front cover coupled to the fan head, and the protective cover coupled to a side of the front cover facing away from the rear housing.

13. The fan of claim 1, further comprising a base adapted to be supported on a mounting surface, the motor mount being mounted on the base.

14. The fan of any one of claims 1-13, wherein the fan head is independently detachable with respect to the motor mount as a whole;

and/or the fan head is suitable for being connected with the motor base along a first direction when in an initial position, the first direction is intersected with a vertical direction, and the fan head can swing up and down and/or left and right relative to the motor base from the initial position.

15. The fan according to any one of claims 1-13, wherein the fan head is provided with an air outlet, the fan blade being configured as an axial flow fan blade adapted to drive an air flow in the fan head to flow in an axial direction of the axial flow fan blade towards the air outlet;

and/or the radial dimension of the fan head is greater than or equal to twice the radial dimension of the motor base at the position of the driving piece;

and/or the ratio of the radial dimension to the axial dimension of the fan head is greater than or equal to 1.