Body structure of handheld appliance, and handheld appliance

Abstract

Disclosed in the present application are a body structure of a handheld appliance, and the handheld appliance. The body structure of the handheld appliance comprises a housing, an input assembly and an electric motor bracket, wherein the housing is cylindrical and defines a mounting cavity, one end of the housing is provided with a through hole in communication with the mounting cavity, and the outer peripheral wall of the housing close to the through hole forms a pressing area and an accidental touch area located around the pressing area; the input assembly comprises a main control board and a flexible pad which are mounted in the mounting cavity, an input button being provided at the position on the main control board opposite the pressing area, and the flexible pad being mounted between the pressing area and the input button; and the electric motor bracket is arranged in the mounting cavity, the electric motor bracket abuts against the side of the main control board that faces away from the flexible pad, and supporting bosses are provided at the positions on the electric motor bracket opposite the accidental touch area, the supporting bosses being configured to support the accidental touch area. In this way, the problem of the input button being accidentally triggered can be avoided.

Description

Handheld device body structure and handheld device Technical Field

[0001] The present application relates to the technical field of handheld devices, and in particular to a body structure of a handheld device and the handheld device. Background Art

[0002] In order to make existing handheld devices (such as electric toothbrushes, electric shavers, etc.) fully waterproof, generally no through holes are opened on the outer peripheral surface of the handle shell of the handheld device, or the holes opened on the outer peripheral surface of the handle shell of the handheld device are filled and no keycaps are installed. In this way, in order to trigger the buttons inside the handle shell, it can only be achieved by the overall deformation of the handle shell.

[0003] The handle shell of the existing handheld device is provided with a pressing area opposite to the button, so that the user can trigger the button by pressing the pressing area. However, since the handle shell of the handheld device is an integrated structure, when the user presses the outer area of ​​the pressing area, the pressing area will also deform and cause the button to be triggered, which will lead to the problem of false triggering of the handheld device, so it is urgent to solve it.

[0004] Utility Model Content

[0005] The main purpose of this application is to propose a body structure of a handheld device, aiming to solve the problem that handheld devices in the prior art are prone to false triggering.

[0006] To achieve the above-mentioned purpose, the present application proposes a body structure of a handheld device, comprising a housing, an input component and a motor bracket; wherein,

[0007] The housing is cylindrical and defines a mounting cavity. One end of the housing is provided with a through hole communicating with the mounting cavity. The outer peripheral wall of the housing adjacent to the through hole forms a pressing area and an error touch area located outside the pressing area.

[0008] The input assembly includes a main control board installed in the installation cavity and a flexible pad, the main control board is provided with an input button at a position opposite to the pressing area, and the flexible pad is installed between the pressing area and the input button;

[0009] The motor bracket is arranged in the installation cavity, and the motor bracket abuts against the side of the main control board facing away from the flexible pad. The motor bracket is provided with a supporting boss at a position opposite to the false touch area, and the supporting boss is used to support the false touch area.

[0010] In some embodiments of the present invention, the number of the supporting bosses is at least two, and at least two of the supporting bosses are arranged on two opposite sides of the main control board in the circumferential direction of the motor bracket.

[0011] In some embodiments of the present invention, the support boss is arranged along the axial extension of the motor bracket, and the support boss is provided with two first ribs on the side adjacent to the main control board, and the support boss is provided with two second ribs on the other side facing away from the main control board, and the two first ribs and the two second ribs are arranged at intervals in the axial direction of the motor bracket.

[0012] In some embodiments of the present invention, the two first ribs are further connected via a third rib, and the third rib is further fixedly connected to the motor bracket; and / or,

[0013] The two second ribs are further connected via a fourth rib, and the fourth rib is further fixedly connected to the motor bracket.

[0014] In some embodiments of the present invention, the cavity wall of the mounting cavity is provided with two assembly grooves, both of which are extended along the axial direction of the shell, and the two assembly grooves are also arranged on both sides of the false touch area in the circumferential direction of the shell, and the outer wall of the motor bracket is provided with two assembly ridges, each of which is tightly fitted with the corresponding assembly groove.

[0015] In some embodiments of the present invention, an orthographic projection of each of the assembly protrusions in a direction in which the input component approaches the housing at least partially overlaps with the pressing area.

[0016] In some embodiments of the present invention, the central angles of each of the assembly grooves and the pressing area are equal, and the notches of the two assembly grooves are arranged opposite to each other.

[0017] In some embodiments of the present invention, each of the assembly ridges includes at least two assembly segments and at least one connecting segment, and two adjacent assembly segments are connected by one connecting segment. At least two of the assembly segments are tightly fitted with the corresponding assembly grooves, and at least one of the connecting segments is loosely fitted with the corresponding assembly groove.

[0018] In some embodiments of the present invention, the assembly segment adjacent to the through hole of at least two of the assembly segments is arranged in a wedge shape.

[0019] In some embodiments of the present invention, a support structure is further provided on the outer peripheral wall of the motor bracket facing the pressing area, and the support structure and the support boss are arranged axially at intervals on the motor bracket, and the support structure is used to abut against the position of the housing located between the through hole and the false touch area.

[0020] In some embodiments of the present invention, the support structure includes a first support block, which is arranged on the outer peripheral wall of the motor bracket facing the pressing area, and the first support block extends along the circumference of the motor bracket. The first support block is used to abut against the position of the outer shell between the through hole and the false touch area, and the first support block is also used to abut and cooperate with one end of the main control board adjacent to the through hole.

[0021] In some embodiments of the present invention, the support structure also includes two second support blocks, which are arranged on the outer peripheral wall of the motor bracket facing the pressing area, and the two second support blocks are also located on both sides of the main control board in the circumferential direction of the motor bracket. The two second support blocks are respectively used to abut against the position of the outer shell between the through hole and the false touch area, and the two second support blocks also limit the main control board in the circumferential direction of the motor bracket.

[0022] In some embodiments of the present invention, a mounting plane is provided on an outer peripheral wall of the motor bracket opposite to the pressing area, the mounting plane extending along the axial direction of the motor bracket and abutting against the main control board;

[0023] The ends of the two second support blocks away from the motor bracket are both provided with limiting hooks, and the limiting hooks on the two second support blocks are used to limit the main control board to limit the displacement of the main control board toward the pressing area.

[0024] The present invention also provides a handheld device, which includes a head and the body structure of the handheld device as described above, and the head and the body structure of the handheld device are used in conjunction with each other.

[0025] The utility model sets a pressing area at a position opposite to the input button of the shell. When the pressing area is pressed, it is deformed and abuts against the flexible pad and triggers the input button to realize the input of the control command; a supporting boss is set at a position opposite to the false touch area of ​​the shell by the motor bracket, and the supporting boss is used to abut against the false touch area of ​​the shell. In this way, the deformation amount of the false touch area can be limited to a relatively small amount or even to zero, thereby avoiding the problem that the pressing area is deformed when the false touch area is pressed, which in turn causes the input button to be triggered incorrectly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0027] FIG1 is a schematic structural diagram of an embodiment of the body structure of a handheld device of the present invention;

[0028] FIG2 is a cross-sectional view along AA in FIG1 ;

[0029] FIG3 is a schematic structural diagram of the housing in FIG2 ;

[0030] FIG4 is an exploded view of the input assembly in FIG2 ;

[0031] FIG5 is a schematic structural diagram of the motor bracket in FIG2 ;

[0032] FIG6 is an enlarged schematic diagram of a portion D in FIG2 ;

[0033] FIG7 is a cross-sectional view along line BB in FIG1 ;

[0034] FIG8 is a cross-sectional view of the housing in FIG3 ;

[0035] FIG9 is a structural schematic diagram of the motor bracket in FIG2 from another perspective;

[0036] FIG10 is a cross-sectional view taken along CC in FIG1 ;

[0037] FIG11 is a schematic diagram of the assembly of the motor bracket and the main control board in FIG2;

[0038] FIG12 is a cross-sectional view along line EE in FIG5 .

[0039] Description of Figure Numbers:

[0040] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0042] Referring to Figures 1 to 7, the body structure 100 of the handheld device provided by the present invention includes a housing 110, an input assembly 120, and a motor bracket 130; the housing 110 is cylindrical and defines a mounting cavity 111, one end of the housing 110 is provided with a through hole 112 communicating with the mounting cavity 111, and the outer peripheral wall of the housing 110 adjacent to the through hole 112 forms a pressing area 113 and an error touch area 114 located on the periphery of the pressing area 113; the input assembly 120 includes a motor bracket 130 installed in the mounting cavity 111, and a motor bracket 130 is provided with a motor bracket 130; the ... 1, an input button 1211 is provided at a position of the main control board 121 opposite to the pressing area 113, and the flexible pad 122 is installed between the pressing area 113 and the input button 1211; the motor bracket 130 is arranged in the installation cavity 111 and abuts against a side 121 of the main control board facing away from the flexible pad 122, and a support boss 131 is provided at a position of the motor bracket 130 opposite to the false touch area 114, and the support boss 131 is used to support the false touch area 114.

[0043] Housing 110 is cylindrical in shape, with various cross-sectional shapes available, including, for example, circular, elliptical, square, regular polygonal, and other shapes, without specific limitation herein. A mounting cavity 111 within housing 110 is provided for mounting components such as input assembly 120, motor bracket 130, and the motor. Consequently, one end of housing 110 is typically open to allow for the insertion of components such as input assembly 120, motor bracket 130, and the motor into mounting cavity 111. A through-hole 112 extending from the other end of housing 110 communicates with mounting cavity 111, allowing for the extension of a drive shaft for transmission connection with the motor.

[0044] The pressing area 113 on the outer wall of the shell 110 can produce slight deformation when subjected to external force, that is, the thickness of the pressing area 113 on the shell 110 is thinner than the thickness of other positions of the shell 110, which can ensure that the pressing area 113 can quickly deform after being pressed; the false touch area 114 on the outer wall of the shell 110 located outside the pressing area 113 can also produce deformation when pressed by external force, that is, when the false touch area 114 is pressed, it will drive the pressing area 113 to deform together, which can easily create the illusion that the pressing area 113 is pressed, and thus lead to the problem of erroneous operation.

[0045] The input assembly 120 includes a main control board 121 and a flexible pad 122. The main control board 121 is typically arranged in an elongated strip and is installed in the mounting cavity 111 along the extension direction of the mounting cavity 111. An input button 1211 is provided on the main control board 121 at a position opposite the pressing area 113. The input button 1211 may be a mechanical button, a micro switch, a pressure sensor, etc. The flexible pad 122 may be made of rubber or silicone and is provided between the pressing area 113 and the input button 1211. When the flexible pad 122 is installed between the pressing area 113 and the input button 1211, it is squeezed, that is, the flexible pad 122 elastically contacts both the pressing area 113 and the input button 1211. In this way, the flexible pad 122 can be used to eliminate the gap between the pressing area 113 and the input button 1211, thereby improving the sensitivity of the input button 1211.

[0046] The motor bracket 130 can be set in a cylindrical shape, or in a ring shape with an unsealed side. In this case, the cross section of the motor bracket 130 is an unsealed ring shape. The motor bracket 130 can also be set in other shapes, which are not specifically limited here. The motor bracket 130 is fixedly installed in the installation cavity 111. The motor bracket 130 also abuts against the main control board 121, that is, the main control board 121 can be fixed on the outer peripheral wall of the motor bracket 130. The support boss 131 provided at the position of the motor bracket 130 relative to the false touch area 114 can be set in a block shape or in a long strip shape, which is not limited here. The support boss 131 is used to abut against the false touch area 114 to limit the deformation of the false touch area 114 when pressed by external force.

[0047] The present invention sets a pressing area 113 at a position opposite to the input button 1211 on the shell 110. When the pressing area 113 is pressed, it is deformed and abuts against the flexible pad 122 and triggers the input button 1211 to realize the input of the control command; a supporting boss 131 is set at a position opposite to the false touch area 114 of the shell 110 on the motor bracket 130. The supporting boss 131 is used to abut against the false touch area 114 of the shell 110, so that the deformation of the false touch area 114 can be limited to a relatively small amount or even zero, thereby avoiding the problem that the pressing area 113 is deformed when the false touch area 114 is pressed, and then the input button 1211 is mistakenly triggered.

[0048] In some embodiments of the present invention, the number of support bosses 131 is at least two, that is, there may be two, three, four, or even more support bosses 131. At least two support bosses 131 are located on opposite sides of the main control board 121 circumferentially of the motor bracket 130. Specifically, referring to Figures 5 and 7, in one embodiment of the present invention, there are two support bosses 131. These two support bosses 131 are located on opposite sides of the main control board 121 circumferentially of the motor bracket 130. These two support bosses 131 abut opposite locations of the false touch region 114, providing support for the two opposite locations of the false touch region 114. This helps ensure balanced force across the sensitive trigger area, further ensuring that pressing the false touch region 114 does not cause the input button 1211 to be accidentally triggered. Furthermore, the two support bosses 131 also limit the main control board 121 circumferentially of the motor bracket 130, thereby preventing displacement of the main control board 121 along the circumference of the motor bracket 130.

[0049] Referring to FIG. 5 , in some embodiments of the present invention, the support boss 131 extends along the axial direction of the motor bracket 130. The axial direction of the motor bracket 130 is aligned with the axial direction of the housing 110. Two first ribs 132 are provided on the side of the support boss 131 adjacent to the main control board 121, and two second ribs 133 are provided on the other side of the support boss 131 facing away from the main control board 121. The two first ribs 132 and the two second ribs 133 are spaced apart in the axial direction of the motor bracket 130. This arrangement increases the number of support points of the support boss 131 on the motor bracket 130 in the circumferential direction, thereby ensuring the connection strength between the support boss 131 and the motor bracket 130 and further ensuring that the support boss 131 is not easily broken.

[0050] Furthermore, the two first ribs 132 are connected by a third rib 134, which is also fixedly connected to the motor bracket 130; and / or the two second ribs 133 can be connected by a fourth rib (not shown), which is also fixedly connected to the bracket. This arrangement can further enhance the strength of the connection between the two first ribs 132 and the two second ribs 133 and the motor bracket 130. Moreover, the arrangement of the two first ribs 132, the two second ribs 133, the third rib 134, and the fourth rib increases the connection area between the support boss 131 and the motor bracket 130, thereby making the connection between the support boss 131 and the motor bracket 130 more secure.

[0051] Based on the above embodiments, it should be noted that the motor bracket 130 is installed on the power supply unit, one end of the driving shaft of the handheld device is connected to the motor transmission, and the other end of the driving shaft of the handheld device passes through the through hole 112 of the shell 110 and is connected to the toothbrush head of the handheld device. When the handheld device is working, the head will drive the driving shaft to deviate to one side due to the action of external force, which will cause one side of the motor bracket 130 to move toward the direction close to the shell 110, especially when the motor bracket 130 swings toward the direction close to the pressing area 113, it is also easy to cause the input button 1211 to be triggered by mistake.

[0052] In view of the above problems, referring to Figures 8 to 10, in some embodiments of the present invention, the wall of the mounting cavity 111 is provided with two assembly grooves 115. Both assembly grooves 115 extend axially along the housing 110. The two assembly grooves 115 are also provided on either side of the false touch region 114 in the circumferential direction of the housing 110. The outer wall of the motor bracket 130 is provided with two assembly ridges 135, each assembly ridge 135 tightly fitting with a corresponding assembly groove 115. This arrangement allows the two assembly ridges 135 to cooperate with the two assembly grooves 115 to restrict the motor bracket 130 from swinging relative to the housing 110. Furthermore, combined with the technical solution of the support boss 131 abutting the false touch region 114, the motor bracket 130 is restricted from swinging toward the pressing region 113, thereby preventing the input button 1211 from being accidentally triggered due to the swinging of the motor bracket 130.

[0053] In some embodiments of the present invention, the orthographic projection of each assembly ridge 135 in the direction of the input component 120 close to the housing 110 at least partially overlaps with the pressing area 113, that is, the orthographic projection of each assembly ridge 135 in the direction of the input component 120 close to the housing 110 can overlap with the pressing area on at least one side adjacent to the motor bracket 130. This ensures that each assembly ridge 135 plays a supporting role when the pressing area 113 is pressed, thereby avoiding the position of the motor bracket 130 from being offset when the pressing area 113 is pressed.

[0054] It should be noted that there are many positions for the two assembly grooves 115. The central angle corresponding to the two assembly grooves 115 can be 180 degrees, 160 degrees, or other angles, which are not limited here. Preferably, the central angle corresponding to the two assembly grooves 115 is 180 degrees, that is, the notches of the two assembly grooves 115 are arranged relative to each other, and the central angles corresponding to the two assembly grooves 115 and the pressing area 113 are equal, that is, the central angle corresponding to each assembly groove 115 and the pressing area 113 is 90 degrees. This arrangement allows the two opposite sides of the motor bracket 130 to be subjected to balanced force, and at the same time, the assembly direction of the two assembly ridges 135 is perpendicular to the swing direction of the motor bracket 130, so that the motor bracket 130 can be better constrained.

[0055] Furthermore, each assembly ridge 135 includes at least two assembly segments 1351 and at least one connecting segment 1352. Two adjacent assembly segments 1351 are connected by a connecting segment 1352. The assembly segments 1351 of each assembly ridge 135 tightly fit within the corresponding assembly groove 115, while the connecting segment 1352 of each assembly ridge 135 loosely fits within the corresponding assembly groove 115. This arrangement reduces the area of ​​tight fit between each assembly ridge 135 and the corresponding assembly groove 115, thereby facilitating the fit between the assembly ridge 135 and the corresponding assembly groove 115 and, in turn, facilitating assembly of the motor bracket 130 and the housing 110.

[0056] Furthermore, the assembly segment 1351 adjacent to the through hole 112 of the at least two assembly segments 1351 of each assembly ridge 135 is wedge-shaped, and one end of the assembly ridge 135 adjacent to the through hole 112 can be formed by the assembly segment 1351, and of course it can also be formed by the connecting segment 1352. No specific limitation is made here. The width of the assembly segment 1351 adjacent to the through hole 112 is gradually reduced in the direction approaching the through hole 112, so that the assembly segment 1351 adjacent to the through hole 112 is more easily inserted into the corresponding assembly groove 115, thereby facilitating the entire assembly ridge 135 to slide relative to the corresponding assembly groove 115 until it is assembled into place.

[0057] Referring to Figures 5 and 11 , in some embodiments of the present invention, a support structure 136 is further provided on the outer peripheral wall of the motor bracket 130 facing the pressing area 113. The support structure 136 and the support boss 131 are spaced apart axially from each other on the motor bracket 130. The support structure 136 is configured to abut against the housing 110 at a position between the through-hole 112 and the false touch area 114. This configuration limits the position of the motor bracket 130 on the side facing the pressing area 113 by the support boss 131 and the support structure 136. Furthermore, the support structure 136 is positioned adjacent to the through-hole 112, making it less likely that the motor bracket 130 will swing toward the pressing area 113, thereby preventing the input button 1211 from being accidentally triggered due to the swinging of the motor bracket 130.

[0058] Specifically, the support structure 136 includes a first support block 1361, which is arranged on the outer peripheral wall of the motor bracket 130 facing the pressing area 113. The first support block 1361 extends along the circumference of the motor bracket 130. The first support block 1361 is used to abut against the position of the housing 110 located between the through hole 112 and the false touch area 114. The first support block 1361 is also used to abut and cooperate with one end of the main control board 121 adjacent to the through hole 112. Such an arrangement allows the first support block 1361 and the support boss 131 to form a support line. In particular, when the first support block 1361 and the two support bosses 131 cooperate, they can form a support surface. This not only limits the motor bracket 130 from swinging toward the pressing area 113, but also limits the deformation of the false touch area 114, thereby further reducing the problem of preventing the input key 1211 from being falsely touched. In addition, the first support block 1361 can also limit the main control board 121 in the axial direction of the motor bracket 130.

[0059] Continuing with FIG11 , the support structure 136 further includes two second support blocks 1362 disposed on the outer peripheral wall of the motor bracket 130 facing the pressing area 113. The two second support blocks 1362 are also located on either side of the main control board 121 in the circumferential direction of the motor bracket 130. The two second support blocks 1362 are respectively configured to abut against the housing 110 at locations between the through-hole 112 and the false touch area 114. The two second support blocks 1362 also limit the main control board 121 in the circumferential direction of the motor bracket 130. This arrangement allows the end of the motor bracket 130 adjacent to the through-hole 112 to be limited in position by the first support block 1361 and the two second support blocks 1362. The provision of multiple support points ensures that the end of the motor bracket 130 adjacent to the through-hole 112 is more securely limited in position.

[0060] Further, referring to FIG12 , a mounting plane 137 is provided on the outer peripheral wall of the motor bracket 130 opposite the pressing area 113. The mounting plane 137 extends axially along the motor bracket 130 and is configured to abut against the main control board 121. This configuration increases the contact area between the motor bracket 130 and the main control board 121, thereby enabling the motor bracket 130 to more stably support the main control board 121. Simultaneously, the ends of the two second support blocks 1362 away from the motor bracket 130 are further provided with limiting hooks 1363. The limiting hooks 1363 limit the main control board 121 from separating from the mounting plane 137 in the radial direction of the motor bracket 130. This configuration allows the main control board 121 to be directly fixed to the motor bracket 130, thereby facilitating assembly of the motor bracket 130 and the main control board 121.

[0061] The present invention also provides a handheld device, which can be an electric toothbrush, electric shaver, etc. The handheld device includes a head and a handheld device body structure 100, and the head and the handheld device body structure 100 are used in conjunction with each other. The specific structure of the handheld device body structure 100 is similar to the above-mentioned embodiments. Since the handheld device adopts all the technical solutions of all the above-mentioned embodiments, it also has all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be described in detail here.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. The body structure of a handheld device, characterized in that, It includes a housing, an input component, and a motor bracket; wherein, The housing is cylindrical and defines an installation cavity. One end of the housing is provided with a through hole communicating with the installation cavity. The outer peripheral wall of the housing adjacent to the through hole forms a pressing area and a false touch area located outside the pressing area; The input component includes a main control board and a flexible pad installed in the installation cavity. An input button is arranged at a position of the main control board opposite to the pressing area, and the flexible pad is installed between the pressing area and the input button; The motor bracket is arranged in the installation cavity. The motor bracket abuts against the side of the main control board facing away from the flexible pad. A support boss is arranged at a position of the motor bracket opposite to the false touch area, and the support boss is used to support the false touch area.

2. The body structure of the handheld appliance as claimed in claim 1, wherein The number of the support bosses is at least two, and at least two support bosses are circumferentially arranged on two opposite sides of the main control board on the motor bracket.

3. The body structure of the handheld appliance according to claim 1, characterized in that, The support boss extends along the axial direction of the motor bracket. Two first rib plates are arranged on the side of the support boss adjacent to the main control board, and two second rib plates are arranged on the side of the support boss facing away from the main control board. The two first rib plates and the two second rib plates are all arranged at intervals along the axial direction of the motor bracket.

4. The body structure of the hand-held appliance according to claim 3, characterized in that, The two first rib plates are also connected by a third rib plate, and the third rib plate is also fixedly connected to the motor bracket; and / or, The two second rib plates are also connected by a fourth rib plate, and the fourth rib plate is also fixedly connected to the motor bracket.

5. The body structure of the handheld device according to any one of claims 1 to 4, characterized in that Two assembly grooves are arranged on the cavity wall of the installation cavity. The two assembly grooves both extend along the axial direction of the housing, and the two assembly grooves are also circumferentially arranged on both sides of the false touch area. Two assembly protrusions are arranged on the outer peripheral wall of the motor bracket, and each assembly protrusion is in tight fit with the corresponding assembly groove.

6. The body structure of the hand-held appliance according to claim 5, characterized in that, The orthographic projection of each assembly protrusion in the direction of the input component approaching the housing at least partially overlaps with the pressing area.

7. The body structure of the handheld appliance according to claim 5, characterized in that, The central angles corresponding to each assembly groove and the pressing area are equal, and the openings of the two assembly grooves are arranged oppositely.

8. The body structure of the handheld appliance according to claim 5, characterized in that, Each assembly protrusion includes at least two assembly segments and at least one connecting segment. Adjacent two assembly segments are connected by one connecting segment. At least two assembly segments are all in tight fit with the corresponding assembly groove, and at least one connecting segment is in clearance fit with the corresponding assembly groove.

9. The body structure of the handheld appliance according to claim 7, characterized in that, The assembly segment adjacent to the through hole among at least two assembly segments is wedge-shaped.

10. The body structure of the hand-held appliance according to claim 5, characterized in that, A support structure is also arranged on the outer peripheral wall of the motor bracket facing the pressing area. The support structure is arranged at an interval along the axial direction of the motor bracket from the support boss, and the support structure is used to abut against the position of the housing between the through hole and the false touch area.

11. The body structure of the handheld appliance according to claim 10, characterized in that, The support structure includes a first support block, which is arranged on the outer peripheral wall of the motor bracket facing the pressing area. The first support block extends along the circumferential direction of the motor bracket and is used to abut against the position of the housing between the through hole and the false touch area. The first support block is also used to abut and cooperate with one end of the main control board adjacent to the through hole.

12. The body structure of the handheld appliance according to claim 11, characterized in that, The support structure further includes two second support blocks, which are arranged on the outer peripheral wall of the motor bracket facing the pressing area. The two second support blocks are also located on both sides of the main control board in the circumferential direction of the motor bracket. The two second support blocks are respectively used to abut against the position of the housing between the through hole and the false touch area, and the two second support blocks also limit the main control board in the circumferential direction of the motor bracket.

13. The body structure of the hand-held appliance according to claim 12, characterized in that, An installation plane is provided on the outer peripheral wall of the motor bracket opposite to the pressing area. The installation plane extends along the axial direction of the motor bracket and abuts against the main control board. Limit hooks are provided at the ends of the two second support blocks away from the motor bracket. The limit hooks on the two second support blocks are both used to limit the main control board to restrict the displacement of the main control board in the direction close to the pressing area.

14. A handheld appliance, characterized in that, The handheld device includes a head and the body structure of the handheld device according to any one of claims 1 to 13. The head is used in cooperation with the body structure of the handheld device.

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