CN112833040B

CN112833040B - Split electric fan

Info

Publication number: CN112833040B
Application number: CN202110291223.8A
Authority: CN
Inventors: 王智瀚; 王必正; 张凤娟; 张晓慧; 张菲菲; 王苏绿
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2022-08-02
Anticipated expiration: 2041-03-18
Also published as: CN112833040A

Abstract

The application relates to a split type electric fan, which comprises an outer fan main body and an inner fan main body detachably connected in a cavity of an outer fan shell, wherein the outer fan main body comprises a base and an annular outer fan shell; a main motor and a main impeller are arranged in the base; a cavity with openings at two sides is formed in the middle of the outer fan shell, and a circle of air outlet is formed in one side of the outer fan shell along the edge of the cavity; the inner fan main body comprises a handheld handle and an inner fan shell; a battery box is arranged in the hand-held handle; and a micro motor and an auxiliary impeller are arranged in the inner fan shell. The two fans can be flexibly selected according to the use condition, when the fan is used on a station, the inner fan main body is arranged in the cavity of the outer fan shell, the space is not occupied, and air is blown by the outer fan main body or the outer fan main body and the inner fan main body together; when the fan is moved for use, the inner fan main body is detached from the outer fan shell for use.

Description

Split electric fan

Technical Field

The application relates to the technical field, in particular to a split type electric fan.

Background

The electric fan is a household appliance which uses a motor to drive fan blades to rotate so as to accelerate the circulation of air, and is mainly used for cooling, relieving summer heat and circulating air. The product is widely used in places such as families, classrooms, offices, shops, hospitals, hotels and the like. Common personal fan in the office generally is miniature desk-top electric fan, can fix or stand and use on the station table, and convenient to use and occupation space are little.

With respect to the related art in the above, the inventors consider that: the small-sized desk type electric fan is small in wind power, only can supply wind in a small-area range of a station of a user, and if the user needs to get up to other positions, the desk type electric fan is inconvenient to carry in hand due to the fact that the desk type electric fan is generally connected with a power line, and the blowing effect cannot be achieved.

Disclosure of Invention

In order to solve the problem that desk-top electric fan wind is inconvenient handheld to carry, this application provides a split type electric fan.

The application provides a split type electric fan adopts following technical scheme:

a split type electric fan comprises an outer fan main body, wherein the outer fan main body comprises a base and an annular outer fan shell, and the base and the outer fan shell are both arranged in a hollow mode and are communicated with each other; the surface of the base is provided with an air inlet, and the base is internally provided with a main motor and a main impeller; a cavity with openings at two sides is formed in the middle of the outer fan shell, and a circle of air outlet is formed in one side of the outer fan shell along the edge of the cavity; the split electric fan also comprises an inner fan main body which is detachably connected in the cavity of the outer fan shell; the inner fan main body comprises a handheld handle and an inner fan shell; a battery box is arranged in the hand-held handle; and a micro motor and an auxiliary impeller are arranged in the inner fan shell.

By adopting the technical scheme, the independent outer fan main body is a bladeless fan, is placed on a table top when in use, sucks air from the air inlet hole on the base, and then discharges the air through the annular air outlet; the independent inner fan main part is a handheld fan, and the handheld mobile use is facilitated through the energy supply of the battery. The two fans can be flexibly selected according to the use condition, when the fan is used on a station, the inner fan main body is arranged in the cavity of the outer fan shell, the space is not occupied, and air is blown by the outer fan main body or the outer fan main body and the inner fan main body together; when the fan is moved for use, the inner fan main body is detached from the outer fan shell for use.

Optionally, a linkage mechanism is arranged between the outer fan main body and the inner fan main body, and the linkage mechanism includes a transmission rod and a linkage ring; one end of the transmission rod is connected with the output shaft of the main motor, the other end of the transmission rod penetrates into the cavity of the outer fan shell, and a driving gear is arranged at the end part of the transmission rod penetrating into the cavity; the linkage ring is arranged at the outer edge of the auxiliary impeller along the circumferential direction, and transmission teeth are arranged at the edge of the linkage ring; a linkage gear meshed with the transmission gear is arranged on the inner fan shell; one end of the linkage gear penetrates through the outer side of the inner fan shell, and the linkage gear can be meshed with the driving gear when the inner fan shell is installed in the cavity.

By adopting the technical scheme, when the inner fan main body is arranged on the outer fan main body, the main impeller and the auxiliary impeller are linked by the linkage mechanism, and the auxiliary impeller can be driven by the main impeller to rotate together, so that the blowing effect is enhanced; when power is cut off indoors, the inner fan body can be started because the inner fan body is powered by the battery, and the auxiliary impeller is used for driving the main impeller to rotate together, so that the wind power is increased.

Optionally, an outer cover is hinged to the inner fan shell at the linkage gear, and the outer cover can rotate towards the linkage gear and cover the end, exposed outside the inner fan shell, of the linkage gear.

Through adopting above-mentioned technical scheme, when fan main part in the exclusive use, utilize the outer shade to cover the linkage gear, prevent that pivoted linkage gear from causing the accidental injury to the user.

Optionally, the direction of the outer shade for rotatably covering the linkage gear is the same as the direction of the inner fan shell entering the cavity; the tip that the articulated shaft was kept away from to the outer shade is provided with the guide cambered surface with outer fan shell complex, the outer shade inboard is provided with and is used for outer shade towards linkage gear direction pivoted reset spring.

By adopting the technical scheme, when the inner fan main body is installed in the cavity, the guide cambered surface of the outer shade is propped against the outer fan shell, so that the outer shade can be forced to rotate towards the outer side, and the outer shade does not need to be manually opened; and when the inner fan main body is dismantled, the reset spring can enable the outer shade to automatically cover the linkage gear.

Optionally, a circle of annular flow deflectors are arranged on one side of the air outlet facing the cavity, and the flow deflectors extend towards one side of the outer fan shell along the air outlet direction; the cavity is formed in the middle of the flow deflector, and the inner fan shell is in sliding fit with the inner wall of the flow deflector.

Through adopting above-mentioned technical scheme, utilize the water conservancy diversion piece to extend the air outlet to the air-out one side of outer fan shell to the effect of blowing of outer fan main part is caused and is hindered the influence to the interior fan shell of avoiding.

Optionally, one end of the flow deflector, which is close to the base, is provided with an abdicating groove which is recessed towards the base; the end part of the transmission rod penetrates through the abdicating groove, and the driving gear is positioned in the abdicating groove; the yielding groove penetrates through the cavity towards the opening direction on one side of the cavity.

By adopting the technical scheme, the driving gear is not exposed in the cavity, and the accidental injury of a user caused by the rotating driving gear is avoided; and when the inner fan main body is installed in the cavity, the abdicating groove has the positioning and guiding functions.

Optionally, the handle includes a hinge portion, a rotating portion and an extending portion, the hinge portion is fixedly connected to the middle portion of the inner casing, the rotating portion is hinged to the hinge portion, and the extending portion and the rotating portion are of a telescopic structure.

Through adopting above-mentioned technical scheme, make handheld handle have flexible and direction regulation function, be convenient for hold, and can be when installing to outer fan shell including fan main part in, reduce handheld handle to the hindrance of air flow.

Optionally, a fixing assembly for fixing the inner fan casing is arranged on the outer fan casing, and the fixing assembly includes an elastic buckle and a limiting member; the limiting parts and the elastic buckles are respectively arranged at two ends of the flow deflector.

Through adopting above-mentioned technical scheme, the simple structure of elasticity buckle and locating part makes interior fan main part have easy dismounting's effect.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the independent outer fan main body is a bladeless fan, and is placed on a table top when the fan is used, air is sucked in from an air inlet hole in the base and then is discharged through an annular air outlet; the independent inner fan main body is a handheld fan, and the energy is supplied by a battery, so that the handheld mobile use is facilitated; the two fans can be flexibly selected according to the use condition, when the fan is used on a station, the inner fan main body is arranged in the cavity of the outer fan shell, the space is not occupied, and air is blown by the outer fan main body or the outer fan main body and the inner fan main body together; when the fan is moved for use, the inner fan main body is detached from the outer fan shell for use;

2. when the inner fan main body is arranged on the outer fan main body, the main impeller and the auxiliary impeller are linked by using the linkage mechanism, and the auxiliary impeller can be driven by the main impeller to rotate together, so that the blowing effect is enhanced; when power is cut off indoors, the inner fan body can be started because the inner fan body is powered by the battery, and the auxiliary impeller is used for driving the main impeller to rotate together, so that the wind power is increased.

Drawings

FIG. 1 is a schematic overall structure of the present application;

FIG. 2 is an exploded view of the inner and outer fan bodies of the present application;

FIG. 3 is an exploded view of the outer fan body of the present application;

FIG. 4 is an exploded view of the inner fan body of the present application;

FIG. 5 is an enlarged schematic view at A in FIG. 2;

fig. 6 is a partial sectional structural schematic view of the outer fan body, the inner fan body, and the linkage mechanism of the present application.

Description of reference numerals: 1. an outer fan body; 11. a base; 111. a main motor; 112. a main impeller; 113. an air inlet hole; 12. an outer fan casing; 121. an air outlet; 122. a flow deflector; 1221. a yielding groove; 123. a cavity; 2. an inner fan body; 21. a handle; 211. a hinge portion; 212. a rotating part; 213. an extension portion; 214. a battery case; 22. an inner fan casing; 221. a micro motor; 222. a secondary impeller; 223. an outer mask; 2231. guiding the arc surface; 3. a linkage mechanism; 31. a transmission rod; 311. a drive gear; 32. a link ring; 321. a transmission gear; 33. a linkage gear; 4. a fixing assembly; 41. elastic buckle; 42. a stopper.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses split type electric fan, refer to fig. 1, including outer fan main body 1 and the interior fan main body 2 of dismantling the connection on outer fan main body 1. The two fans can be flexibly selected according to the use condition, when the fan is used on a station, the inner fan main body 2 is arranged on the outer fan main body 1, the space is not occupied, and air is blown by the outer fan main body 1 or the outer fan main body 1 and the inner fan main body 2 together; when the fan is moved for use, the inner fan body 2 is detached from the outer fan body 1.

Referring to fig. 2 and 3, the outer fan body 1 is a bladeless fan, and includes a base 11 and an annular outer fan casing 12. The base 11 and the outer fan shell 12 are both arranged in a hollow mode and are communicated with each other, a main motor 111 and a main impeller 112 are installed in the base 11, and the main motor 111 is used for driving the main impeller 112 to rotate to draft air; a plurality of air inlet holes 113 are formed on the surface of the base 11, and a circle of air outlet 121 is formed on one side of the outer fan shell 12 along the circumferential direction; when the outer fan body 1 is used, the outer fan body is placed on a table top, air is sucked in through the air inlet holes 113 on the base 11, and then the air is discharged through the annular air outlet 121.

Referring to fig. 2 and 4, the inner fan main body 2 is a handheld fan, and includes a handle 21 and an inner fan casing 22. A battery box 214 is arranged in the hand-held handle 21 and supplies energy to the inner fan main body 2 by utilizing the battery; the micro motor 221 and the sub-impeller 222 are installed in the inner fan shell 22, the micro motor 221 is a brushless direct current motor with an outer rotor, the inner fan shell 22 is provided with a coil, the sub-impeller 222 is internally provided with a magnet, the coil is fixed as a stator, the magnet rotates as a rotor, and the sub-impeller 222 is driven in a non-contact mode through a magnetic field. The handle 21 includes a hinge portion 211, a rotating portion 212 and an extending portion 213, the hinge portion 211 is fixedly connected to the middle portion of the inner fan casing 22, the rotating portion 212 is hinged to the hinge portion 211, the extending portion 213 and the rotating portion 212 are of a telescopic structure, the telescopic structure in this embodiment is a conventional sliding telescopic structure, so that the handle 21 has the functions of telescopic movement and direction adjustment, is convenient to hold, and can reduce the obstruction of the handle 21 to the air flow when the inner fan main body 2 is installed in the outer fan casing 12.

Referring to fig. 2 and 3, a ring of annular flow deflectors 122 are integrally formed on one side of the air outlet 121 of the outer fan casing 12 facing the cavity 123, and the flow deflectors 122 extend towards one side of the outer fan casing 12 along the air outlet direction, so that the air outlet 121 extends to the air outlet side of the outer fan casing 12. The middle of the deflector 122 forms a cylindrical cavity 123, two ends of the cavity 123 penetrate through the cavity, and the inner fan shell 22 can be slidably inserted into the cavity 123 to realize assembly.

Referring to fig. 2 and 5, the outer casing 12 is provided with a fixing component 4 for fixing the inner casing 22, and the fixing component 4 includes an elastic buckle 41 and a limiting component 42. The elastic buckle 41 is integrally formed at one end of the baffle 122 close to the opening of the air outlet 121, and the limiting member 42 is integrally formed at the other end of the baffle 122, when the inner fan body 2 is installed, the inner fan casing 22 is inserted into the cavity 123 from the air outlet side of the outer fan casing 12 until the inner fan casing 22 abuts against the limiting member 42, and at this time, the elastic buckle 41 is buckled at the edge of the inner fan casing 22 to realize fixing.

Referring to fig. 2 and 6, a linkage mechanism 3 is disposed between the outer fan body 1 and the inner fan body 2, and the linkage mechanism 3 includes a transmission rod 31, a linkage ring 32, and a linkage gear 33. One end of the transmission rod 31 is coaxially connected with the main impeller 112, the other end of the transmission rod penetrates upwards into the cavity 123, and the end part of the transmission rod 31 penetrating into the cavity 123 is fixedly connected with the driving gear 311; the linkage ring 32 is fixed on the outer edge of the auxiliary impeller 222 along the circumferential direction, and transmission teeth 321 are uniformly distributed on the edge of the linkage ring 32; the linkage gear 33 is i-shaped, and includes an upper gear, a lower gear and a middle connecting shaft, the connecting shaft is rotatably connected to the side wall of the inner fan casing 22, so that the two gears are respectively located at the inner side and the outer side of the inner fan casing 22, the inner gear is meshed with the transmission gear 321, and the outer gear can be meshed with the driving gear 311 after the inner fan main body 2 is installed in the cavity 123 (the transmission gear 321, the linkage gear 33 and the driving gear 311 in the drawings are only schematic diagrams, and the actual size and the transmission ratio among the three can be adjusted according to actual requirements), so that the main impeller 112 and the auxiliary impeller 222 form linkage. When the inner fan main body 2 is installed in the cavity 123, the auxiliary impeller 222 can be driven by the main impeller 112 to rotate together, so that the blowing effect is enhanced; when power is cut off indoors, the inner fan body 2 can be started because the inner fan body 2 is powered by the battery, and the auxiliary impeller 222 is used for driving the main impeller 112 to rotate together, so that wind power is increased.

Referring to fig. 2 and 3, an end of the baffle 122 close to the base 11 is integrally formed with an abdicating groove 1221 recessed towards the base 11; the end of the transmission rod 31 penetrates through the receding groove 1221, and the driving gear 311 is located in the receding groove 1221, so that the driving gear 311 is not exposed in the cavity 123, and accidental injury of a user caused by the rotating driving gear 311 is avoided. And the receding groove 1221 penetrates toward the opening direction of one side of the cavity 123, and when the inner fan main body 2 is installed in the cavity 123, the receding groove 1221 has a positioning and guiding function.

Referring to fig. 2 and 4, an outer shade 223 is hinged to the outer side of the inner fan casing 22 at the position of the linkage gear 33, the outer shade 223 can rotate towards the linkage gear 33 and cover the end of the linkage gear 33 exposed at the outer side of the inner fan casing 22, and the direction of the linkage gear 33 covered by the outer shade 223 in the rotating process is the same as the direction of the inner fan casing 22 entering the cavity 123; a guide curved surface 2231 engaged with the outer fan case 12 is provided at an end of the outer shroud 223 away from the hinge shaft, and a return spring (not shown) for rotating the outer shroud 223 toward the link gear 33 is installed inside the outer shroud 223. When the inner fan body 2 is used alone, the linkage gear 33 is covered by the outer shade 223, so that the rotating linkage gear 33 can be prevented from causing accidental injury to a user; when the inner fan main body 2 is installed in the cavity 123, the guide arc surface 2231 of the outer shroud 223 is pressed against the outer fan case 12, so that the outer shroud 223 can be forced to rotate toward the outside, and the outer shroud 223 does not need to be opened manually; when the inner fan body 2 is removed, the outer shroud 223 can automatically cover the coupling gear 33 by the return spring.

The implementation principle of split type electric fan of this application embodiment does: when the fan is used in a working position, the inner fan body 2 is arranged in the cavity 123 of the outer fan body 1, is fixed through the fixing component 4, and enables the main impeller 112 and the auxiliary impeller 222 to rotate in a linkage manner through the linkage mechanism 3 so as to blow air together; when the fan is moved for use, the inner fan body 2 may be detached from the outer fan body 1 for use.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A split type electric fan comprises an outer fan main body (1), wherein the outer fan main body (1) comprises a base (11) and an annular outer fan shell (12), and the base (11) and the outer fan shell (12) are both arranged in a hollow mode and are communicated with each other; an air inlet hole (113) is formed in the surface of the base (11), and a main motor (111) and a main impeller (112) are arranged in the base (11); a cavity (123) with openings at two sides is formed in the middle of the outer fan shell (12), and a circle of air outlet (121) is formed in one side of the outer fan shell (12) along the edge of the cavity (123); the method is characterized in that: the split electric fan also comprises an inner fan main body (2) which is detachably connected in the cavity (123) of the outer fan shell (12); the inner fan main body (2) comprises a handheld handle (21) and an inner fan shell (22); a battery box (214) is arranged in the hand-held handle (21); a micro motor (221) and an auxiliary impeller (222) are arranged in the inner fan shell (22); a linkage mechanism (3) is arranged between the outer fan main body (1) and the inner fan main body (2), and the linkage mechanism (3) comprises a transmission rod (31) and a linkage ring (32); one end of the transmission rod (31) is connected with an output shaft of the main motor (111), the other end of the transmission rod penetrates into the cavity (123) of the outer fan shell (12), and a driving gear (311) is arranged at the end part of the transmission rod (31) penetrating into the cavity (123); the linkage ring (32) is arranged at the outer edge of the auxiliary impeller (222) along the circumferential direction, and transmission teeth (321) are arranged at the edge of the linkage ring (32); the inner fan shell (22) is provided with a linkage gear (33) meshed with the transmission gear (321); one end of the linkage gear (33) penetrates to the outer side of the inner fan shell (22), and the linkage gear (33) can be meshed with the driving gear (311) when the inner fan shell (22) is installed in the cavity (123).

2. The split type electric fan according to claim 1, wherein: an outer shade (223) is hinged to the position, on the inner fan shell (22), of the linkage gear (33), and the outer shade (223) can rotate towards the direction of the linkage gear (33) and covers one end, exposed outside the inner fan shell (22), of the linkage gear (33).

3. The split type electric fan according to claim 2, wherein: the direction of the outer shade (223) rotating to cover the linkage gear (33) is the same as the direction of the inner fan shell (22) entering the cavity (123); the end part of the outer shade (223) far away from the hinged shaft is provided with a guide arc surface (2231) matched with the outer fan shell (12), and the inner side of the outer shade (223) is provided with a return spring used for rotating the outer shade (223) towards the direction of the linkage gear (33).

4. The split type electric fan according to claim 1, wherein: a circle of annular flow deflectors (122) are arranged on one side of the air outlet (121) facing the cavity (123), and the flow deflectors (122) extend towards one side of the outer fan shell (12) along the air outlet direction; the cavity (123) is formed in the middle of the guide vane (122), and the inner fan shell (22) is in sliding fit with the inner wall of the guide vane (122).

5. The split type electric fan according to claim 4, wherein: one end of the flow deflector (122) close to the base (11) is provided with a yielding groove (1221) which is concave towards the direction of the base (11); the end part of the transmission rod (31) penetrates through the abdicating groove (1221), and the driving gear (311) is positioned in the abdicating groove (1221); the receding groove (1221) penetrates towards the opening direction of one side of the cavity (123).

6. The split type electric fan according to claim 1, wherein: the handheld handle (21) comprises a hinge part (211), a rotating part (212) and an extending part (213), the hinge part (211) is fixedly connected to the middle part of the inner fan shell (22), the rotating part (212) is hinged to the hinge part (211), and the extending part (213) and the rotating part (212) are of a telescopic structure.

7. The split type electric fan according to claim 1, wherein: the outer fan shell (12) is provided with a fixing component (4) for fixing the inner fan shell (22), and the fixing component (4) comprises an elastic buckle (41) and a limiting piece (42); the limiting piece (42) and the elastic buckle (41) are respectively arranged at two ends of the flow deflector (122).