Head assembly and electric fan

Abstract

A head assembly and an electric fan. The head assembly (100) comprises a connecting member (10), a fixing member (30), a motor (70), a motor control apparatus (35), and a rotating structure (50). The connecting member (10) is used for connecting to a support structure (200), and the connecting member (10) is provided with a rotating base (131). The fixing member (30) is arranged on one side of the connecting member (10), and the fixing member (30) is provided with an accommodating cavity. The motor (70) is mounted in the accommodating cavity. The motor control apparatus (35) is arranged in the accommodating cavity and is electrically connected to the motor (70). The rotating structure (50) is connected to the fixing member (30) and / or the motor (70). One end of the rotating structure (50) is rotatably connected to the rotating base (131).

Description

Head assembly and electric fan TECHNICAL FIELD

[0001] The present application relates to the technical field of fan, and particularly relates to a head assembly and an electric fan. BACKGROUND

[0002] In the related art, the electric fan can be usually integrated with multiple driving mechanisms to realize stable blowing and blowing direction adjustment of the electric fan, and to guarantee stable and reliable operation of the electric fan.

[0003] However, the existing electric fan usually needs to use multiple support components to support and fix the driving mechanism for driving the fan blade to rotate and the driving mechanism for changing the air outlet direction, and to combine the components of the electric fan to form an integral whole, which results in more components in the assembly process of the electric fan, and further results in more complicated assembly process of the electric fan, and reduces the assembly convenience and practicability of the electric fan. SUMMARY

[0004] The main purpose of the present application is to provide a head assembly and an electric fan, which aims to improve the structural integrity of the driving mechanism of the electric fan by using the head assembly, realize compact assembly of the electric fan, and further improve the assembly convenience and practicability of the electric fan.

[0005] To achieve the above purpose, the head assembly provided by the present application comprises a connecting piece, a fixing piece, a motor, a motor control device and a rotating structure, the connecting piece is used to connect a support structure, the connecting piece is provided with a rotating seat; the fixing piece is arranged on one side of the connecting piece, and the fixing piece is provided with a containing cavity; the motor is installed in the containing cavity; the motor control device is arranged in the containing cavity and electrically connected with the motor; the rotating structure is connected with the fixing piece and / or the motor, and one end of the rotating structure is rotatably connected with the rotating seat.

[0006] Optionally, the outer periphery of the connecting piece is provided with a power connector, the power connector is connected with the motor control device through wires, and the power connector is used to connect an external power supply.

[0007] Optionally, the fixing piece is provided with a support through hole penetrating through the fixing piece, the rotating structure comprises a panel and a connecting plate, the panel is connected to the side of the fixing piece opposite to the connecting piece, and the panel is connected with the motor; the connecting plate is arranged in the support through hole, one end of the connecting plate is connected with the panel, and the other end of the connecting plate is rotatably connected with the rotating seat.

[0008] Optionally, the connecting plate comprises a first plate piece and a second plate piece, the first plate piece and the second plate piece are arranged in parallel and spaced apart, and are respectively connected with the panel and the rotating seat.

[0009] Optionally, one end of the first plate member and one end of the second plate member are respectively bent and connected to opposite sides of the panel. And / or, the panel and the connecting plate are provided in an integrated structure.

[0010] Optionally, the connecting member is defined to have a central axis extending in the up-down direction, and the rotating structure is connected to one side of the rotating seat facing the central axis of the connecting member. The fixing member is provided in an integrated structure with the rotating structure.

[0011] Optionally, the connecting member is further provided with a rotating shaft connecting the rotating seat and the rotating structure. And / or, the accommodating cavity is provided with a stop structure abutting and fixing the motor, and the motor control device is arranged between the stop structure and the inner wall of the accommodating cavity. And / or, the outer periphery of the fixing member is provided with an operation hole communicating with the accommodating cavity, and the motor control device is provided with an operation button arranged through the operation hole. And / or, the handpiece assembly further comprises an energy storage device arranged in the accommodating cavity and on the side of the motor opposite to the panel, and the energy storage device is electrically connected with the motor control device. And / or, the fixing member comprises an assembly cover and a cover body, the assembly cover forms an accommodating groove therein, the groove opening of the accommodating groove faces the connecting member, and the rotating structure is connected to the assembly cover; the cover body is detachably connected to one side of the assembly cover facing the connecting member and covers the accommodating groove to form the accommodating cavity, and the rotating structure penetrates through the cover body.

[0012] Optionally, the connecting member comprises a first column, a second column and a turning mechanism, the first column is used to connect a support structure; the second column is arranged in a stacked manner with the first column, and the rotating seat is arranged on one end of the first column in the second column; the turning mechanism is arranged between the first column and the second column and connects the first column and the second column, so that the second column rotates relative to the first column.

[0013] Optionally, the first column is formed with a mounting hole, the turning mechanism is provided with a connecting rotating rod, part of the structure of the connecting rotating rod is arranged in the mounting hole, the outer periphery of the connecting rotating rod is sleeved with a first bearing and a second bearing, the first bearing and the second bearing are arranged in a spaced manner along the extension direction of the connecting rotating rod and are respectively fixed to abut the inner wall of the mounting hole. The connecting rotating rod is provided with a wire channel, and the outer periphery of the connecting rotating rod is provided with a wire long hole communicating with the wire channel, the wire long hole is arranged between the first bearing and the second bearing, the inner wall of the mounting hole is recessed with a wire groove, the groove opening of the wire groove is arranged opposite to the wire long hole, and the outer periphery of the first column is provided with a wire hole communicating with the wire groove.

[0014] The present application also proposes an electric fan, which includes a head assembly and a support structure. The head assembly is the head assembly mentioned above, and the head assembly is connected to the support structure.

[0015] The technical solution of the present application connects the rotating structure to the fixed part or the motor, and rotates one end of the rotating structure to be connected to the rotating seat, so that the rotating structure can form a connecting part between the connecting part and the fixed part. The rotating structure is directly connected to the fixed part, or is connected to the motor to connect the motor to the fixed part, which can effectively improve the connection stability and reliability between the rotating structure and the fixed part, so that the gravity of the motor can be transmitted to the connecting part through the rotating structure, which is conducive to better utilizing the support structure of the electric fan to support the motor to a certain extent. Under the connecting action of the rotating structure, even if the fixed part is arranged on one side of the connecting part, it can also be well supported and fixed, thereby ensuring the overall structural stability of the electric fan, and effectively increasing the force arm length of the rotating structure on the fixed part, effectively avoiding the rotating structure from being broken due to excessive load, and improving the overall structural stability and reliability of the head assembly. At the same time, by setting the motor and the motor control device in the fixing part, the fixing part and the connecting part form a whole under the connecting action of the rotating structure, the head assembly can realize the compact assembly of multiple components of the electric fan, which is conducive to assembling the columns and fan blades on the head assembly to complete the installation of the electric fan, effectively improving the assembly convenience and practicality of the electric fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] FIG1 is a schematic structural diagram of an electric fan according to an embodiment of the present invention;

[0018] FIG2 is a schematic structural diagram of an embodiment of a head assembly of the present application;

[0019] FIG3 is a schematic structural diagram of a rotating structure separation fixing member of an embodiment of the head assembly of FIG2 ;

[0020] FIG4 is an exploded view of the structure of an embodiment of the head assembly of FIG2;

[0021] FIG5 is a schematic structural diagram of the rotating structure connecting the fixing member and the connecting member in FIG4 ;

[0022] FIG6 is a partial cross-sectional view of the head assembly of FIG2 at the connecting plate;

[0023] Fig. 7 is a partially exploded schematic view of an embodiment of the connecting piece of the head assembly of Fig. 2;

[0024] Fig. 8 is a sectional view of an embodiment of the connecting piece of the head assembly of Fig. 2;

[0025] Fig. 9 is a partial enlarged view of A in Fig. 8;

[0026] Fig. 10 is a partial enlarged view of B in Fig. 8;

[0027] Fig. 11 is a side view of an embodiment of the connecting piece and rotating structure of the head assembly of Fig. 2;

[0028] Fig. 12 is a sectional view of C-C in Fig. 11;

[0029] Fig. 13 is a sectional view of D-D in Fig. 11.

[0030] Explanation of reference numerals: 100, head assembly; 10, connecting piece; 11, first column body; 111, mounting hole; 1111, wire slot; 1113, limiting slot; 1115, limiting boss; 1117, avoiding hole; 113, connecting slot; 1131, wire hole; 1133, connecting rack; 115, power connector; 13, second column body; 131, rotating seat; 133, rotating shaft; 15, steering mechanism; 151, connecting rotating rod; 1511, shaft body section; 1511a, first bearing; 1511b, second bearing; 1511c, wire running long hole; 1511d, fixed surrounding edge; 1513, rotating section; 1513a, transmission gear; 1515, wire running channel; 153, driving motor; 155, limiting ring; 30, fixing piece; 31, assembly cover body; 311, accommodating slot; 313, supporting through hole; 315, stopping structure; 33, cover body; 331, operation hole; 35, motor control device; 351, operation button; 37, energy storage device; 50, rotating structure; 51, panel; 53, connecting plate; 70, motor; 200, supporting structure; 400, fan blade assembly; 1000, electric fan. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] It should be noted that all the direction indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the direction indications will also change accordingly.

[0033] In the present application, unless specifically defined and limited otherwise, the terms "connection", "fixation", and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In addition, the description involving "first", "second", etc. in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B schemes. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed in the present application.

[0035] The existing head assembly is mostly composed of a first support of a fixed motor and a second support connected to the support structure. The first support is rotatably connected to the second support through a rotating structure arranged on the first support, so as to rotate the first support on the second support to adjust the blowing angle of the electric fan. However, in the existing head assembly, the rotating structure is usually arranged on the side of the first support facing the second support, which causes the rotating structure to be arranged away from the center of gravity of the first support, so that the rotating structure is prone to breakage, reducing the overall structural stability and reliability of the head assembly. In view of the above problems, the present application provides a head assembly 100.

[0036] Referring to FIGS. 1-13, in the embodiment of the present application, the head assembly 100 comprises a connecting piece 10, a fixing piece 30, a motor 70, a motor control device 35, and a rotating structure 50. The connecting piece 10 is used to connect a support structure 200, and the connecting piece 10 is provided with a rotating seat 131. The fixing piece 30 is arranged on one side of the connecting piece 10, and the fixing piece 30 is provided with a receiving cavity. The motor 70 is installed in the receiving cavity. The motor control device 35 is arranged in the receiving cavity and is electrically connected with the motor 70. The rotating structure 50 is connected with the fixing piece 30 and / or the motor 70, and one end of the rotating structure 50 is rotatably connected with the rotating seat 131.

[0037] It can be understood that the electric fan 1000 can connect the support structure 200 such as a stand and a triangular support with the head assembly 100, so as to support and fix the head assembly 100 by the support structure 200, and connect the fan blade cover of the fan blade assembly 400 on the head assembly 100, so that the motor 70 in the head assembly 100 can stably connect the fan blades in the fan blade assembly 400, drive the fan blades to rotate to blow air, avoid the high-speed rotating fan blades from hurting the user, and ensure the stable operation of the electric fan 1000.

[0038] In the present application, the head assembly 100 can be composed of the connecting piece 10 and the fixing piece 30 by using the rotating structure 50. By arranging the receiving cavity in the fixing piece 30, the motor 70 and the motor control device 35 can be installed and fixed in the receiving cavity, and the wires can be directly connected between the motor 70 and the motor control device 35 in the receiving cavity to realize more convenient wiring. At this time, the avoiding hole which is communicated with the receiving cavity can be arranged on one side of the fixing piece 30, so that the rotating shaft 133 of the motor 70 can pass through the avoiding hole to connect the fan blades, so as to ensure the stable driving of the motor 70 on the fan blades, and then the connecting piece 10 is fixedly connected with the support structure 200 of the electric fan 1000, so that the head assembly 100 can be stably blown at a certain height under the support of the support structure 200.

[0039] The rotating structure 50 can be a long plate structure or a rod structure, etc. Part of the structure of the rotating structure 50 can be fixedly connected to the inner wall of the accommodating cavity or the outer periphery of the fixing member 30, and the stable connection between the rotating structure 50 and the fixing member 30 can be achieved by using bolts or buckles, etc. Alternatively, part of the structure of the rotating structure 50 can be inserted into the accommodating cavity and fixedly connected to the motor 70, and the motor 70 can be fixedly connected to the rotating structure 50 by using screws or buckles, etc. Alternatively, part of the structure of the rotating structure 50 can be inserted into the accommodating cavity and connected to the inner wall of the accommodating cavity and the outer wall of the motor 70, so that the rotating structure 50, the motor 70 and the fixing member 30 are better connected to form a whole, and the motor 70 can be more stably arranged in the fixing member 30, which is conducive to better increasing the connection stability and reliability of the rotating structure 50, the fixing member 30 and the motor 70. At this time, one end of the rotating structure 50 can pass through the fixing member 30 and be connected to the rotating seat 131 on one side of the fixing member 30. At this time, the rotating structure 50 and the rotating seat 131 can be connected by a rotating shaft 133 or a hinge, so that the other end of the rotating structure 50 is rotatably connected to the rotating seat 131. Under the action of the rotating structure 50, the fixing member 30 and the connecting member 10 can be stably combined to form a whole, and the fixing member 30 can be rotatably arranged relative to the connecting member 10 by using the rotating connection between the rotating structure 50 and the rotating seat 131. Therefore, the blowing angle of the electric fan 1000 can be adjusted by adjusting the rotating angle of the fixing member 30 on the connecting member 10 during the operation of the electric fan 1000, so that the electric fan 1000 can better meet the use requirements of users.

[0040] Under the action of the rotating structure 50 which is inserted into the accommodating cavity to connect the fixing member 30 and / or the motor 70, the force arm of the rotating structure 50 connected to the fixing member 30 can be well increased. At the same time, the motor 70 can transmit the gravity to the connecting member 10 through the rotating structure 50, so that the connecting member 10 and the fixing member 30 can be used together to support the motor 70 with large weight, avoid the weight of the motor 70 concentrated on the fixing member 30 to cause the rotating structure 50 to bear large load, prevent the rotating structure 50 from being broken, and further make the rotating structure 50 more stably and reliably support the fixing member 30 and the connecting member 40, so as to guarantee the overall structural stability and reliability of the head assembly 100.

[0041] The technical scheme of the present application can make the rotating structure 50 form a connecting component between the connecting piece 10 and the fixed piece 30, directly connect the rotating structure 50 in the fixed piece 30, or connect the motor 70 to the fixed piece 30, effectively improve the connection stability and reliability between the rotating structure 50 and the fixed piece 30, make the gravity of the motor 70 transmitted to the connecting piece 10 through the rotating structure 50, and facilitate better use of the support structure 200 of the electric fan 1000 to support the motor 70, so that the fixed piece 30 can be well supported and fixed on one side of the connecting piece 10 under the connection of the rotating structure 50, guarantee the overall structural stability of the electric fan 1000, effectively increase the length of the force arm of the rotating structure 50 on the fixed piece 30, effectively avoid the breakage of the rotating structure 50 due to excessive load, and improve the overall structural stability and reliability of the head assembly 100. At the same time, by arranging the motor 70 and the motor control device 35 in the fixed piece 30, the fixed piece 30 and the connecting piece 10 form an integral whole under the connection of the rotating structure 50, the head assembly 100 can realize compact assembly of multiple components of the electric fan 1000, and facilitate assembly of the stand and the fan blade on the head assembly 100 to complete the installation of the electric fan 100, effectively improving the assembly convenience and practicality of the electric fan 1000.

[0042] In an embodiment of the present application, the outer periphery of the connecting piece 10 is provided with a power connector 115 connected with the motor control device 35 by wires.

[0043] In the present embodiment, the head assembly 100 can be provided with a power connector 115 on the outer periphery of the connecting piece, which can be a socket or a plug matched with an external power source, so that various electric components of the electric fan 1000 can be integrated in the head assembly 100, and the driving mechanism in the head assembly 100 does not need to be connected to electricity during assembly, further improving the assembly convenience and practicality of the electric fan 1000. The head assembly 100 can reserve a wiring space in the fixed piece 30 and the connecting piece 10, so that the power connector 115 can be electrically connected with the motor control device 35 by wires, ensuring power supply of the external power source to the head assembly 100. When the head assembly 100 is also provided with an energy storage device 37 such as a battery, the power connector 115 can also be connected with the energy storage device 37 by wires, so that the user can charge the energy storage device 37 in the head assembly 100 by using the external power source, further improving the portability of the electric fan 1000.

[0044] Referring to FIGS. 3-5, in one embodiment of the present application, the fixing member 30 is provided with a support through hole 313 extending through the fixing member 30, the rotating structure 50 includes a panel 51 and a connecting plate 53, the panel 51 is connected to a side of the fixing member 30 opposite to the connecting member 10, and the panel 51 is connected with the motor 70; the connecting plate 53 is arranged through the support through hole 313, one end of the connecting plate 53 is connected to the panel 51, and the other end of the connecting plate 53 is rotatably connected to the rotating seat 131.

[0045] In the present embodiment, the rotating structure 50 can include the panel 51 and the connecting plate 53, by arranging the support through hole 313 extending through the fixing member 30 in the fixing member 30 and arranging the rotating seat 131 on the connecting member 10, the rotating structure 50 can connect and fix the panel 51 on a surface of the fixing member 30 opposite to the connecting member 10, then the connecting plate 53 is arranged through the support through hole 313, and the two ends of the connecting plate 53 are respectively connected to the panel 51 and the rotating seat 131, at this time, the connecting plate 53 and the rotating seat 131 can be connected through the rotating shaft 133 or the hinge, and one end of the connecting plate 53 is rotatably connected to the rotating seat 131, so that the fixing member 30 and the connecting member 10 can be stably combined into a whole by the rotating structure 50, and the overall structure stability of the handpiece assembly 100 is guaranteed. The motor 70 can be connected and fixed in the accommodating cavity on the panel 51 through the screw or the buckle and other connecting structures, so that the handpiece assembly 100 can play a better supporting role on the motor 70 by using the panel 51 with a larger connecting area, and the connecting plate of the rotating structure 50 can be better prevented from being broken, and the structural stability and reliability of the handpiece assembly 100 are further improved.

[0046] The panel 51 is connected to the side of the fixing member 30 away from the connecting member 10, and the connecting plate 53 is arranged in the supporting through hole 313 of the fixing member 30, so that the rotating structure 50 can be arranged in the fixing member 30 in a shape similar to an "L" character, effectively increasing the connection area between the rotating structure 50 and the fixing member 30, and the size of the connecting plate 53 corresponding to the supporting through hole 313 can be arranged, so that the fixing member 30 can support the connecting plate 53 by the inner wall of the hole of the supporting through hole 313. Compared with arranging the rotating structure 50 on the side of the fixing member 30 facing the connecting member 10 and rotatingly connecting the connecting member 10, the rotating structure 50 can more stably connect the fixing member 30 and the connecting member 10, and is beneficial to forming the fixing member 30 and the rotating structure 50 as a whole, better avoiding the breakage of the rotating structure 50, ensuring the stable connection of the rotating structure 50 to the fixing member 30 and the connecting member 10, and further improving the overall structural stability and reliability of the head assembly 100. In addition, by connecting the panel 51 of the rotating structure 50 to the side of the fixing member 30 away from the connecting member 10 and connecting the panel 51 and the rotating seat 131 of the fixing member 30 through the connecting plate 53, the panel 51 can be avoided from being arranged in the accommodating cavity of the fixing member 30, the space occupied by the rotating structure 50 in the accommodating cavity is reduced, and it is beneficial to better arrange other components of the head assembly 100 in the accommodating cavity, so that the overall components of the head assembly 100 are arranged more compactly, the miniaturization design of the head assembly 100 is realized, and the practicability of the head assembly 100 is further improved.

[0047] Referring to FIGS. 3-6, in an embodiment of the present application, the connecting plate 53 includes a first plate member and a second plate member, which are spaced apart and arranged side by side, and are respectively connected to the panel 51 and the rotating seat 131.

[0048] In the embodiment, the rotating structure 50 can arrange the first plate member and the second plate member of the connecting plate 53 to be relatively spaced apart and arranged side by side, connect the two ends of the first plate member to the panel 51 and the rotating seat 131, and connect the two ends of the second plate member to the panel 51 and the rotating seat 131. The first plate member and the second plate member can better improve the connection and support force of the connecting plate 53 to the panel 51 and the rotating seat 131 under the cooperation of the first plate member and the second plate member, and are beneficial to better improve the connection stability and reliability between the rotating structure 50 and the connecting member 10, and further improve the overall structural stability and reliability of the head assembly 100. The first plate member and the second plate member can be symmetrically arranged with the rotating center axis of the motor 70 as the center of symmetry, which is beneficial to better ensure the average stress of the first plate member and the second plate member, so that the rotating structure 50 can more stably and reliably connect and support the fixing member 30 and the connecting member 10, and further improve the structural stability and reliability of the head assembly 100.

[0049] Referring to FIGS. 3-5, in one embodiment of the present application, one end of the first plate member and one end of the second plate member are respectively bent and connected to opposite sides of the face plate 51. The face plate 51 and the connecting plate 53 can be provided in an integrated structure.

[0050] In the present embodiment, the connecting plate 53 can bend and connect the end of the first plate member and the end of the second plate member on opposite sides of the face plate 51, so that the face plate 51 and the connecting plate 53 are connected and arranged perpendicular to each other, thereby better enhancing the connection stability and reliability of the face plate 51 and the connecting plate 53, so that the rotating structure 50 can more stably and reliably bear the gravitational load of the fixing member 30 and the motor 70, and it is beneficial to better avoid the connection between the face plate 51 and the first plate member or the second plate member from being broken, further improving the overall structural stability and reliability of the handpiece assembly 100.

[0051] In addition, the face plate 51 and the connecting plate 53 can be made into an integrated structure by stamping technology or casting technology, and the rotating structure 50 can be formed on the plate material by stamping or integrally cast by a mold corresponding to the rotating structure 50, thereby better enhancing the overall structural strength of the rotating structure 50 by using the integrated face plate 51 and the connecting plate 53, which is beneficial to better avoid the connection between the face plate 51 and the connecting plate 53 from being broken, ensuring the stable connection of the rotating structure 50 to the fixing member 30 and the connecting member 10, and further improving the overall structural stability and reliability of the handpiece assembly 100.

[0052] In one embodiment of the present application, the connecting member 10 has a central axis extending in the up-down direction, and the rotating structure 50 is connected to one side of the rotating seat 131 facing the central axis of the connecting member 10.

[0053] In the present application, the connecting member 10 can be a cylindrical or square column structure, and the geometric center or the gravity center of the connecting member 10 in the up-down direction can be set as the central axis of the connecting member 10. At this time, the rotating seat 131 can be arranged on one side of the central axis of the connecting member 10, and the rotating structure 50 and the rotating seat 131 can be connected by a rotating shaft or a hinge, so that the rotating structure 50 is connected to the side surface of the rotating seat 131 facing the central axis of the connecting member 10, which is beneficial to make the gravity center of the rotating structure 50 as much as possible in the same plane as the gravity center of the connecting member 10, so that the connection of the rotating structure 50 and the rotating seat 131 can stably ensure the connection support strength of the rotating structure 50 to the fixing member 30 and the connecting member 10, better prevent the rotating structure 50 from being broken, etc., ensure the rotating connection stability and reliability of the rotating structure 50 and the rotating seat 131, and further improve the overall structural stability and reliability of the handpiece assembly 100.

[0054] The connection and fixation of the fixing member 30 and the connecting member 10 by the plate connection mode of the rotating structure 50 and the rotating seat 131 can better reduce the volume of the connection structure 50 of the head assembly 100, so that the head assembly 100 can realize better miniaturization design, effectively reduce the overall occupied space of the head assembly 100, improve the aesthetics of the electric fan 1000, and further improve the practicability and reliability of the head assembly 100.

[0055] Referring to FIG. 5, in an embodiment of the present application, the connecting member 10 is further provided with a rotating shaft 133 connecting the rotating seat 131 and the rotating structure 50.

[0056] In the embodiment, by arranging the rotating shaft 133 between the rotating seat 131 and the connecting plate 53, the rotating seat 131 and the connecting plate 53 can be connected by the rotating shaft 133, and the rotation of the connecting plate 53 relative to the rotating seat 131 is realized. At this time, the rotating seat 131 can be a rotating shaft seat matched with the rotating shaft 133. By installing the rotating shaft 133 in the rotating seat 131 and rotating, and fixing the connecting plate 53 and the rotating shaft 133, the connecting plate 53 can be driven to rotate under the rotation of the rotating shaft 133, realizing the purpose of the rotating structure 50 driving the fixing member 30 to rotate relative to the connecting member 10, and ensuring the stable adjustment of the blowing angle of the electric fan 1000. By connecting the rotating seat 131 and the connecting plate 53 by the rotating shaft 133 to realize the connection of the rotating structure 50 and the connecting member 10 and the rotation of the rotating structure 50 relative to the connecting member 10, the connection stability and reliability of the rotating seat 131 and the connecting plate 53 can be better improved under the support of the rotating shaft 133, and the connection between the rotating seat 131 and the connecting plate 53 can be better prevented from breaking, further improving the overall structural stability and reliability of the head assembly 100. The rotating shaft 133 can be a damping rotating shaft 133, so that the rotating shaft 133 can maintain the position of the connecting plate 53 after rotation at various angles, so that the user can more conveniently operate the electric fan 1000 to adjust the blowing angle, further improving the operation convenience of the electric fan 1000, and improving the practicability and reliability of the head assembly 100.

[0057] Referring to FIGS. 4-6, in an embodiment of the present application, the volume of the accommodating cavity can be greater than the volume of the motor 70. After the motor 70 is installed and fixed in the accommodating cavity, the accommodating cavity can form a certain idle space around the motor 70, which is conducive to better installing other components of the handpiece assembly 100 in the idle space, and achieving a more compact structure of the handpiece assembly 100. At this time, the motor control device 35 of the handpiece assembly 100 can be installed in the accommodating cavity and disposed around the motor 70. The motor control device 35 can be a control circuit board or the like electrically connected with the motor 70, so that the components in the handpiece assembly 100 can be more regularly arranged, the compact design of the handpiece assembly 100 is achieved, the wiring in the handpiece assembly 100 is facilitated, and the practicability and reliability of the handpiece assembly 100 are further improved.

[0058] Referring to FIGS. 4 and 5, in an embodiment of the present application, the accommodating cavity is provided with a stop structure 315, the stop structure 315 abuts and fixes the motor 70, and the motor control device 35 is disposed between the stop structure 135 and the inner wall of the accommodating cavity.

[0059] In the present embodiment, the fixing member 30 can be provided with a stop structure 315 such as a stop block or a stop ring on the inner wall of the accommodating cavity, and the stop structure 315 is arranged in the accommodating cavity according to the shape of the motor 70. When the motor 70 is installed in the accommodating cavity, the motor 70 can be correspondingly arranged with the stop structure 315, the stop structure 315 abuts the outer periphery of the motor 70, the stop structure 315 can play a certain fixing and supporting role for the motor 70, which is conducive to better reducing the shaking of the motor 70 during operation, and ensuring the stable operation of the handpiece assembly 100. At the same time, the stop structure 315 can be used to fix the motor 70 during transportation of the handpiece assembly 100, preventing the motor 70 from deviating in the accommodating cavity, ensuring the stability of the overall structure of the handpiece assembly 100, and further improving the practicability and reliability of the handpiece assembly 100.

[0060] By arranging the stop structure 315 in the accommodating cavity to support and fix the motor 70, the stop structure 315 can also be used as a partition component in the accommodating cavity, so that the stop structure 315 can divide the accommodating cavity into a first accommodating space and a second accommodating space. The motor 70 is located in the first accommodating space, and the second accommodating space can be a space formed between the outer periphery of the stop structure 315 opposite to the motor 70 and the inner wall of the accommodating cavity. The second accommodating space can surround the first accommodating space. At this time, the motor control device 35 of the handpiece assembly 100 can be installed in the second accommodating space, so that the handpiece assembly 100 can use the stop structure 315 and the inner wall of the accommodating cavity to fix the motor control device 35, which is conducive to better ensuring the assembly stability of the components in the accommodating cavity of the handpiece assembly 100, and further improving the overall structural stability and reliability of the handpiece assembly 100.

[0061] Referring to FIGS. 2, 4 and 6, in an embodiment of the present application, the outer periphery of the fixing member 30 is provided with an operation hole 331 communicating with the accommodating cavity, the motor control device 35 is provided with an operation button 351, and the operation button 351 is arranged through the operation hole 331. In addition, the head assembly 100 further comprises an energy storage device 37 arranged in the accommodating cavity and arranged on the side of the motor 70 opposite to the panel 51, and the energy storage device 37 is electrically connected with the motor control device 35.

[0062] In the embodiment, the operation button 351 can be integrated on the motor control device 35, and the operation button 351 can correspond to a plurality of control programs of the electric fan 1000 to realize functions such as air volume adjustment, swing control and on-off control of the electric fan 1000, so as to ensure convenient operation of the electric fan 1000. At this time, by arranging the operation hole 331 communicating with the accommodating cavity on the outer periphery of the fixing member 30, the operation button 351 can be arranged through the operation hole 331 to be exposed on the outer periphery of the fixing member 30, so as to facilitate the user to directly press the operation button 351 on the head assembly 100 to control the electric fan 1000, and further improve the operation convenience and practicability of the head assembly 100. In addition, the operation hole 331 can be arranged on the part of the fixing member 30 not connected with the fan blade assembly 400, i.e. arranged on the end of the fixing member 30 opposite to the air outlet direction, so as to avoid interference between the operation button 351 and the fan blade assembly 400, and further improve the structural stability and reliability of the head assembly 100.

[0063] In addition, the head assembly 100 can further be provided with the energy storage device 37 arranged in the accommodating cavity, and the energy storage device 37 can be an energy storage battery or the like. The energy storage device 37 can be used to supply energy to the motor 70, the motor control device 35 and other components, so as to realize wireless operation of the electric fan 1000, facilitate use of the electric fan 1000 in outdoor environment or the like, and further improve the practicability and reliability of the head assembly 100. In addition, by arranging the energy storage device 37 on the side of the motor 70 opposite to the panel 51, the energy storage device 37 can be more conveniently disassembled for replacement or maintenance, which is conducive to better guarantee stable operation of the head assembly 100, and further improve the structural stability and reliability of the head assembly 100.

[0064] Referring to FIGS. 4 to 6, in an embodiment of the present application, the fixing member 30 comprises an assembly cover 31 and a cover body 33. The assembly cover 31 is formed with an accommodating groove 311, and the groove opening of the accommodating groove 311 is arranged towards the connecting member 10. The rotating structure 50 is connected to the assembly cover 31. The cover body 33 is detachably connected to the side of the assembly cover 31 towards the connecting member 10, and covers the accommodating groove 311 to form the accommodating cavity. The rotating structure 50 is arranged through the cover body 33.

[0065] In the embodiment, the fixing member 30 is composed of the assembly cover 31 and the cover 33 which can be disassembled from each other. The motor 70 and other components installed in the accommodating cavity can be replaced or maintained by disassembling the cover 33 from the assembly cover 31, further improving the maintenance convenience of the head assembly 100. At this time, the panel 51 of the rotating structure 50 can be connected and fixed to the side of the assembly cover 31 which faces away from the cover 33, which can effectively avoid the interference of the panel 51 with the space in the accommodating groove 311, so that the motor 70, the motor control device 35 and other components can be better installed in the accommodating groove 311, and the motor 70 and other components can be better exposed after the cover 33 is disassembled from the assembly cover 31, which facilitates the user to maintain or replace, and better improves the practicability and reliability of the head assembly 100. The recess can be formed on the side wall of the accommodating groove 311 to form the support through hole 313, and the notch corresponding to the recess can be arranged on the cover plate, so that the connecting plate 53 of the rotating structure 50 can stably pass through the support through hole 313 of the fixing member 30 to connect the panel 51 and the rotating seat 131, so that the rotating structure 50 can better form an integral whole with the assembly cover 31, and the overall structural stability of the head assembly 100 is ensured.

[0066] Referring to FIGS. 4 and 6, in an embodiment of the present application, the connecting member 10 includes a first column 11, a second column 13 and a steering mechanism 15. The first column 11 is used to connect the support structure 200. The second column 13 is arranged in layers with the first column 11, and the first column 11 is provided with a rotating seat 131 at one end in the second column 13. The steering mechanism 15 is arranged between the first column 11 and the second column 13 and connects the first column 11 and the second column 13, so that the second column 13 rotates relative to the first column 11.

[0067] In the embodiment, the connecting member 10 can be formed by the first column 11 and the second column 13 which are arranged in layers. The first column 11 and the second column 13 can be sleeve structures with cavities, so that the steering mechanism 15 can be installed in the inner cavities of the first column 11 and the second column 13 and connect the first column 11 and the second column 13. By connecting and fixing the first column 11 with the support structure 200, the steering mechanism 15 can be driven to operate by electricity, so that the steering mechanism 15 drives the second column 13 to rotate relative to the first column 11 in the horizontal direction. Further, by arranging the rotating seat 131 which connects the rotating structure 50 at the end of the second column 13 which faces away from the first column 11, the fixing member 30 can be driven to rotate when the second column 13 rotates horizontally, that is, the horizontal swing function of the electric fan 1000 is realized, so that the electric fan 1000 can realize a larger range of blowing effect, further improving the practicability and reliability of the head assembly 100.

[0068] Referring to FIG. 7 and FIG. 8, in an embodiment of the present application, the first column 11 is provided with a mounting hole 111, the steering mechanism 15 is provided with a connecting rotating rod 151, part of the structure of the connecting rotating rod 151 is arranged in the mounting hole 111, the outer periphery of the connecting rotating rod 151 is sleeved with a first bearing 1511a and a second bearing 1511b, the first bearing 1511a and the second bearing 1511b are arranged at intervals along the extension direction of the connecting rotating rod 151, and are respectively fixed to abut the inner wall of the hole of the mounting hole 111. The connecting rotating rod 151 is provided with a wire channel 1515, the outer periphery of the connecting rotating rod 151 is provided with a wire long hole 1511c which communicates with the wire channel 1515, the wire long hole 1511c is arranged between the first bearing 1511a and the second bearing 1511b, the inner wall of the hole of the mounting hole 111 is recessed with a wire slot 1111, the slot of the wire slot 1111 is arranged opposite to the wire long hole 1511c, and the outer periphery of the first column 11 is provided with a wire hole 1131 which communicates with the wire slot 1111.

[0069] In the embodiment, the head assembly 100 can include the first column 11 and the steering mechanism 15, the first column 11 can be connected with other column support structure 200 or frame support structure 200, so that the electric fan 1000 can operate more stably, by mounting and fixing the second column 13 on the steering mechanism 15, and rotating the second column 13 on the first column 11 by using the steering mechanism 15, so that the second column 13 can be driven to rotate on the head assembly 100 by using the steering mechanism 15, thereby expanding the range of action of the electric fan 1000. In the first column 11, a mounting hole 111 with a certain length can be formed, by inserting the connecting rotating rod 151 of the steering mechanism 15 into the mounting hole 111, and sleeving the first bearing 1511a and the second bearing 1511b at intervals along the extension direction of the connecting rotating rod 151, the outer periphery of the first bearing 1511a and the outer periphery of the second bearing 1511b can be fixed on the inner wall of the hole of the mounting hole 111, so that the rotating friction between the steering mechanism 15 and the first column 11 can be reduced under the action of the first bearing 1511a and the second bearing 1511b, and the relative rotation between the steering mechanism 15 and the first column 11 can be more stable.

[0070] The through-wire groove 1111 can be arranged between the first bearing 1511a and the second bearing 1511b, and the wire hole 1131 can be arranged on the outer periphery of the first column body 11 and pass through to the through-wire groove 1111, so that the wire of the electric fan 1000 can pass through the wire hole 1131 and be arranged in the through-wire groove 1111. Further, the wire channel 1515 with a certain length can be formed by avoiding or arranging an inner hole structure in the internal through structure of the connecting rod 151, and the wire channel 1515 can pass through the end face of the connecting rod 151 arranged in the second column body 13 from the internal through structure of the connecting rod 151. The wire long hole 1511c can be arranged on the outer periphery of the connecting rod 151 and pass through to the wire channel 1515, and the wire long hole 1511c can be arranged between the first bearing 1511a and the second bearing 1511b and opposite to the notch of the through-wire groove 1111 on the mounting hole 111, so that the wire can enter the wire channel 1515 through the wire long hole 1511c on the connecting rod 151 after entering the through-wire groove 1111, and the wire can be stably arranged in the motor in the fixing member 30 through the second column body 13, so as to realize the wire arrangement of the wire in the head assembly 100 and guarantee the power supply and control of the electric fan 1000. Since the wire long hole 1511c extends along the rotation direction of the connecting rod 151, the transverse size of the wire long hole 1511c is much larger than the outer diameter size of the wire, so that the wire long hole 1511c can avoid the wire during the rotation of the second column body 13 driven by the steering mechanism 15, the wire and the connecting rod 151 can swing relative to each other at the wire long hole 1511c, and the wire can be more stably and reliably arranged on the first column body 11 and the steering mechanism 15 to guarantee the stable operation of the electric fan 1000.

[0071] Referring to FIGS. 7, 8 and 12, in an embodiment of the present application, the end of the first column body 11 is provided with a connecting groove 113, the wire hole 1131 is arranged through the inner side wall of the connecting groove 113, the mounting hole 111 is arranged through the groove bottom wall of the connecting groove 113, and the through-wire groove 1111 is communicated with the connecting groove 113. Part of the structure of the connecting rod 151 is arranged in the connecting groove 113 and is rotatably connected with the inner side wall of the connecting groove 113, so that the first column body 11 and the steering mechanism 15 can rotate relative to each other.

[0072] In the embodiment, the first column 11 can be recessed at the end facing the steering mechanism 15 to form a connecting groove 113, at this time, the first column 11 can be formed with a mounting hole 111 below the connecting groove 113, and the mounting hole 111 is provided through to the groove bottom wall of the connecting groove 113, the hole inner diameter of the mounting hole 111 can be smaller than the inner diameter of the connecting groove 113, so that when the steering mechanism 15 is provided in a wide lower narrow structure, the connecting rotating rod 151 can be inserted in the mounting hole 111 by using the part with smaller outer diameter at the lower end of the connecting rotating rod 151, and the part with larger outer diameter at the upper end is limited to be arranged in the connecting groove 113 to realize the assembly of the steering mechanism 15 and the first column 11. Wherein, by making one side of the wire passing groove 1111 through to the groove bottom wall of the connecting groove 113, the wire passing groove 1111 can be communicated with the connecting groove 113, at this time, the wire connecting hole 1131 can be provided through to the inner side wall of the connecting groove 113, so that the wire connecting hole 1131 can be communicated with the wire passing groove 1111 in the connecting groove 113, and then the wire in the head assembly 100 can be routed through the wire connecting hole 1131 and enter the wire passing groove 1111 after being connected with the cable of the external power supply, so that the wire can better avoid the first bearing 1511a of the connecting rotating rod 151 for routing, and further avoid the interference between the wire and the first bearing 1511a. In the connecting groove 113, the wire can be routed as close as possible to the inner side wall of the connecting groove 113, the mounting hole 111 is arranged at the center area of the connecting groove 113, by arranging a gap for avoiding the wire on the outer periphery of the connecting rotating rod 151 or reducing the outer diameter of the part of the connecting rotating rod 151 arranged in the connecting groove 113, the wire and the connecting rotating rod 151 can be arranged at a certain distance in the connecting groove 113, which is beneficial to better avoid the mutual interference between the wire and the connecting rotating rod 151, and further prevent the wire from being pulled or wound on the connecting rotating rod 151 due to the action force of the rotation of the connecting rotating rod 151, so as to ensure the stable operation of the electric fan 1000.

[0073] By arranging the rotating device connecting the connecting rotating rod 151 and the inner side wall of the connecting groove 113 in the connecting groove 113, the connecting rotating rod 151 can be relatively rotated with the first column 11 in the connecting groove 113 under the driving action of the rotating device, so that the steering mechanism 15 can rotate along the central axis of the connecting rotating rod 151 to drive the second column 13 to rotate, and further improve the structural stability and reliability of the head assembly 100.

[0074] Referring to FIGS. 12 and 13, in an embodiment of the present application, the inner side wall of the connecting groove 113 is provided with a connecting rack 1133, and the connecting rotating rod 151 is further provided with a transmission gear 1513a, which is rotatably exposed to the outer periphery side of the connecting rotating rod 151 and is engaged with the connecting rack 1133.

[0075] In the embodiment, the connecting rack 1133 is arranged on the inner side wall of the connecting groove 113. The connecting rack 1133 is arranged in an arc shape on the inner side wall of the connecting groove 113, and a plurality of clamping teeth are sequentially arranged on the side of the connecting rack 1133 facing the connecting rotating rod 151. The radius of the connecting rack 1133 is the radius of the rotation of the steering mechanism 15. A rotating transmission gear 1513a is arranged in the connecting rotating rod 151. The transmission gear 1513a is engaged with the clamping teeth of the connecting rack 1133. The connecting rotating rod 151 is rotated on the first column body 11 under the rotation of the transmission gear 1513a, thereby ensuring the stable rotation of the steering mechanism 15 and expanding the air outlet range of the electric fan 1000. The connecting rack 1133 can be adhered to the inner side wall of the connecting groove 113 by a hot melting process or adhesive, thereby realizing the stable connection between the connecting rack 1133 and the inner side wall of the connecting groove 113. Alternatively, the connecting rack 1133 can be formed when the first column body 11 is integrally molded, thereby improving the overall structural strength of the connecting rack 1133 and the first column body 11 and further improving the service life of the head assembly 100. The wiring hole 1131 is arranged on the part of the inner side wall of the connecting groove 113 where the connecting rack 1133 is not arranged, thereby avoiding the connecting rack 1133 when the wire is routed between the wiring hole 1131 and the wire passing groove 1111, preventing the transmission gear 1513a of the connecting rotating rod 151 from interfering with the wire when the transmission gear 1513a is rotated in cooperation with the connecting rack 1133, and further improving the structural stability and reliability of the head assembly 100.

[0076] Referring to FIGS. 7 and 8, in an embodiment of the present application, the connecting rotating rod 151 includes a shaft body segment 1511 and a rotating segment 1513. The shaft body segment 1511 is arranged in the mounting hole 111. The shaft body segment 1511 is sleeved with a first bearing 1511a and a second bearing 1511b. The outer circumferential side of the shaft body segment 1511 is provided with a wire routing long hole 1511c. One end of the rotating segment 1513 is connected to the shaft body segment 1511, and the other end of the rotating segment 1513 is connected to the second column body 13. Part of the structure of the rotating segment 1513 is arranged in the connecting groove 113. The transmission gear 1513a is exposed on the outer circumferential side of the rotating segment 1513. The driving motor 153 is arranged in the rotating segment 1513. The driving motor 153 is connected to the transmission gear 1513a and drives the transmission gear 1513a to rotate.

[0077] In the embodiment, the shaft segment 1511 of the connecting rotating rod 151 can be a cylindrical structure with an outer diameter smaller than the hole diameter of the mounting hole 111, so that the rotation of the shaft segment 1511 in the mounting hole 111 can be well guaranteed by the rotation of the connecting rotating rod 151 through the first bearing 1511a and the second bearing 1511b sleeved on the outer periphery of the shaft segment 1511. The outer diameter of the rotating segment 1513 can be larger than the outer diameter of the shaft segment 1511, and the end of the rotating segment 1513 opposite to the shaft segment 1511 can be exposed at the slot of the connecting slot 113, and the rotating segment 1513 can be connected with the second column 13 through the installation table or the installation support and other structures arranged on the part of the structure, so as to improve the connection stability and reliability between the steering mechanism 15 and the second column 13, and guarantee the stable driving of the head assembly 100 to the second column 13. The inner cavity of the rotating segment 1513 can form a cavity with a certain volume, so that the driving motor 153 for driving the rotation of the steering mechanism 15 can be installed in the cavity. At this time, the transmission gear 1513a can be connected to the driving shaft of the driving motor 153, and the hole structure communicating with the inner cavity of the rotating segment 1513 can be arranged on the outer periphery of the rotating segment 1513, so that the transmission gear 1513a can rotate in the hole structure and be exposed on the outer periphery of the rotating segment 1513, so that the rotating gear can be driven to rotate with the transmission rack under the driving of the driving motor 153, thereby realizing the rotation of the connecting rotating rod 151 in the first column 11, and realizing the head swinging of the second column 13 of the electric fan 1000. The driving motor 153 and other components can form a wire channel 1515 in the installation gap between the cavity of the rotating segment 1513, so that the wire can be connected to the second column 13 through the wire channel 1515 in the shaft segment 1511 and the rotating segment 1513, so as to guarantee the stable power supply and control of the electric fan 1000, and further improve the structural stability and reliability of the head assembly 100.

[0078] Referring to FIGS. 11 and 12, in an embodiment of the present application, the first column 11 is provided with a power connector 115, which is arranged in the connecting slot 113 and close to the wire slot 1111, and one end of the power connector 115 is exposed in the wire hole 1131.

[0079] In the embodiment, in order to better realize the disassembly and storage and transportation of the electric fan 1000, the whole machine cable of the electric fan 1000 can be divided into internal wires arranged in the head assembly 100 and the second column 13 and an external cable connected to an external power source. At this time, the power connector 115 can be a socket or a plug by being arranged in the connecting groove 113. At this time, one end of the external cable connected to the external power source of the electric fan 1000 can be provided with a plug or a socket matched with the power connector 115, so that the external cable can be pulled out of the head assembly 100 when the electric fan 1000 is disassembled, so that the electric fan 1000 can be better disassembled and assembled, and the overall storage and transportation of the electric fan 1000 are facilitated. At the same time, the power connector 115 is used to realize the plug-in conduction of the electric fan 1000 and the external cable, which is also beneficial to the user to replace the external cable with a suitable length according to the actual use environment, so that the electric fan 1000 can better meet the use requirements of the user, and the practicability and reliability of the electric fan 1000 are further improved.

[0080] Since the swing angle of the second column 13 of the electric fan 1000 is mostly set within 270° in the actual use process, and is usually 90°, 120°, 150° or 180° and the like, at this time, the circular arc of the connecting rack 113 in the connecting groove 113 can be set according to the rotation angle of the steering mechanism 15, so that the connecting rack 113 can only occupy part of the inner side wall of the connecting groove 113. At this time, the power connector 115 can be connected to the part of the inner side wall of the connecting groove 113 which is not provided with the connecting rack 113, so that the power connector 115 and the connecting rack 113 can be spaced apart on the inner side wall of the connecting groove 113, preventing the connecting rotating rod 151 from interfering with the power connector 115 and the wires when rotating in the connecting groove 113. The wire passing groove 1111 can be arranged adjacent to the end of the power connector 115 facing away from the wire hole 1131, so that the wires inside the electric fan 1000 can be connected to the power connector 115 and then conveniently passed into the wire passing groove 1111 for wiring, ensuring the convenience of wiring in the head assembly 100, and the wires can be prevented from interfering with the connecting rotating rod 151, further improving the structural stability and reliability of the head assembly 100.

[0081] Referring to FIG. 9, the hole inner wall of the mounting hole 111 is concavely provided with a limiting groove 1113, and the first bearing 1511a is arranged in the limiting groove 1113 and abuts against the inner side wall and the groove bottom wall of the limiting groove 1113. The outer circumferential side of the connecting rotating rod 151 is provided with a fixed surrounding edge 1511d abutting against the surface of the first bearing 1511a facing away from the groove bottom wall of the limiting groove 1113.

[0082] In the embodiment, by recessing the limiting groove 1113 on the hole inner wall of the mounting hole 111, the mounting hole 111 can form a certain receiving table structure at the limiting groove 1113, which is beneficial to abut the first bearing 1511a on the hole inner wall of the mounting hole 111 to realize fixation when the first bearing 1511a is installed into the mounting hole 111. At this time, the outer periphery of the first bearing 1511a can be fixed to the inner side wall of the limiting groove 1113 by glue connection, or the bearing and the inner side wall of the limiting groove 1113 can be fixed by an auxiliary support, so as to guarantee the connection stability and reliability of the first bearing 1511a and the limiting groove 1113. By abutting the groove bottom wall of the limiting groove 1113 to the end face of the first bearing 1511a facing the second bearing 1511b, and protruding the fixed surrounding edge 1511d on the outer periphery of the connecting rod 151, and abutting the fixed surrounding edge 1511d to the end face of the first bearing 1511a away from the second bearing 1511b, the first bearing 1511a can be stably sleeved on the bearing under the action of the limiting groove 1113 and the fixed surrounding edge 1511d, so as to prevent the relative movement of the first bearing 1511a and the connecting rod 151 along the central axis of the connecting rod 151, and improve the connection stability and reliability of the first bearing 1511a and the connecting rod 151.

[0083] Referring to FIG. 10, in an embodiment of the application, the hole inner wall of the mounting hole 111 is provided with a limiting boss 1115, the limiting boss 1115 is provided with an avoiding hole 1117, the connecting rod 151 is arranged in the avoiding hole 1117, and the end face of the second bearing 1511b facing the first bearing 1511a abuts against the limiting boss 1115.

[0084] In the embodiment, by arranging the limiting boss 1115 on the hole inner wall of the mounting hole 111, the second bearing 1511b can abut against the limiting boss 1115 when being sleeved on the connecting rod 151, which effectively prevents the second bearing 1511b from moving towards the first bearing 1511b during the rotation of the connecting rod 151, and further improves the connection stability and reliability of the second bearing 1511b and the connecting rod 151. At the same time, by stably connecting the inner wall of the second bearing 1511b and the connecting rod 151 by glue or an auxiliary support, the limiting boss 1115 can abut against the second bearing 1511b to prevent the connecting rod 151 from being pulled out of the mounting hole 111, avoid the relative separation of the steering mechanism 15 and the first column body 11 during the operation of the electric fan 1000, guarantee the stable operation of the electric fan 1000, and further improve the structural stability and reliability of the head assembly 100.

[0085] Referring to FIG. 10, in an embodiment of the application, the connecting rod 151 is provided with a limiting ring 155, the limiting ring 155 is sleeved on the outer periphery side of the connecting rod 151 and abuts against the end face of the second bearing 1511b away from the limiting boss 1115.

[0086] In the embodiment, the outer diameter of the connecting rotating rod 151 can be gradually reduced in the direction from the first bearing 1511a to the second bearing 1511b, so that the connecting rotating rod 151 can be arranged in a cylindrical structure with a wide top and a narrow bottom. The connecting rotating rod 151 with the structure can enable the first bearing 1511a and the second bearing 1511b to be sequentially sleeved on the connecting rotating rod 151 from one end of the connecting rotating rod 151, and by setting the inner diameters of the first bearing 1511a and the second bearing 1511b, the first bearing 1511a and the second bearing 1511b can be sequentially interference-fitted with the outer periphery of the connecting rotating rod 151 to realize the connection and fixation of the first bearing 1511a and the second bearing 1511b on the connecting rotating rod 151. At this time, a limiting ring 155 is sleeved on the connecting rotating rod 151, and the size of the limiting ring 155 can be greater than the inner ring size of the second bearing 1511b, so that the limiting ring 155 can abut against the end face of the second bearing 1511b away from the limiting boss 1115. Further, under the limiting and fixing action of the limiting boss 1115 and the limiting ring 155, the relative movement of the second bearing 1511b and the connecting rotating rod 151 along the central axis of the connecting rotating rod 151 can be effectively prevented, and the connection stability and reliability of the second bearing 1511b and the connecting rotating rod 151 are further improved, thereby ensuring the stable operation of the electric fan 1000.

[0087] The application also provides an electric fan 1000, which comprises a head assembly 100 and a support structure 200. The specific structure of the head assembly 100 is described above. Since the electric fan 1000 adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0088] The above is only the preferred embodiment of the application, and does not limit the patent scope of the application. Any equivalent structural transformation, direct / indirect application in other related technical fields based on the inventive concept of the application and the content of the specification and drawings are included in the patent protection scope of the application.

Claims

1. A head assembly, characterized in that: The utility model relates to a handheld device, including: a connecting piece for connecting a support structure, the connecting piece being provided with a rotating seat; a fixing piece provided on one side of the connecting piece, the fixing piece being provided with a receiving cavity inside; a motor installed in the receiving cavity; a motor control device provided in the receiving cavity and electrically connected with the motor; and a rotating structure connecting the fixing piece and / or the electrode, one end of the rotating structure being rotatably connected to the rotating seat.

2. The handpiece assembly of claim 1, wherein, The outer periphery of the connecting piece is provided with a power connector connected with the motor control device, the power connector being used to connect an external power source.

3. The handpiece assembly of claim 1, wherein, The fixing piece is provided with a support through hole penetrating through the fixing piece, and the rotating structure includes: a panel connected to the side of the fixing piece opposite to the connecting piece, the panel being connected with the motor; and a connecting plate penetrating through the support through hole, one end of the connecting plate being connected to the panel, and the other end of the connecting plate being rotatably connected to the rotating seat.

4. The handpiece assembly of claim 3, wherein, The connecting plate includes a first plate and a second plate, the first plate and the second plate being arranged in parallel and spaced apart, and being connected to the panel and the rotating seat respectively.

5. The handpiece assembly of claim 4, wherein, One end of the first plate and one end of the second plate are respectively bent and connected to the two opposite sides of the panel. And / or, the panel and the connecting plate are provided in an integrated structure.

6. The handpiece assembly of claim 1, wherein, The connecting piece has a central axis extending in the up-down direction, and the rotating structure is connected to the side of the rotating seat facing the central axis of the connecting piece. And / or, the fixing piece and the rotating structure are provided in an integrated structure.

7. The handpiece assembly of any one of claims 1 to 6, wherein, The connecting piece is further provided with a rotating shaft connecting the rotating seat and the rotating structure. And / or, the receiving cavity is provided with a stop structure abutting and fixing the motor, and the motor control device is arranged between the stop structure and the inner wall of the receiving cavity. And / or, the outer periphery of the fixing piece is provided with an operation hole communicating with the receiving cavity, the motor control device is provided with an operation button, and the operation button is arranged penetrating through the operation hole. And / or, the handheld device assembly further includes an energy storage device, the energy storage device being arranged in the receiving cavity and on one side of the motor, and being electrically connected with the motor control device. And / or, the fixing piece includes: an assembly cover, a receiving groove being formed in the assembly cover, the groove opening of the receiving groove facing the connecting piece, and the rotating structure being connected to the assembly cover; a cover body detachably connected to the side of the assembly cover facing the connecting piece and covering the receiving groove to form the receiving cavity, and the rotating structure penetrating through the cover body.

8. The handpiece assembly of any one of claims 1 to 6, wherein, The connecting piece includes: a first column for connecting a support structure; a second column arranged in layers with the first column, one end of the second column opposite to the first column being provided with the rotating seat; A turning mechanism is arranged between the first column and the second column and connects the first column and the second column to enable the second column to rotate relative to the first column.

9. The handpiece assembly of claim 8, wherein, The first column is formed with a mounting hole, the turning mechanism is provided with a connecting rotating rod, part of the structure of the connecting rotating rod is arranged in the mounting hole, the outer periphery of the connecting rotating rod is sleeved with a first bearing and a second bearing, the first bearing and the second bearing are arranged in the extension direction of the connecting rotating rod and are respectively fixed to abut the inner wall of the mounting hole; The connecting rotating rod is provided with a wire channel, the outer periphery of the connecting rotating rod is provided with a wire long hole communicating with the wire channel, the wire long hole is arranged between the first bearing and the second bearing, the inner wall of the mounting hole is recessed with a wire passing groove, the groove opening of the wire passing groove is arranged opposite to the wire long hole, and the outer periphery of the first column is provided with a wire hole communicating with the wire passing groove.

10. An electric fan characterized by comprising: The electric fan comprises a head assembly and a support structure, the head assembly is the head assembly in any one of claims 1 to 9, and the head assembly is connected to the support structure.

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