Handheld device shell and handheld device

Abstract

The embodiment of the utility model discloses a handheld device shell and a handheld device, the handheld device shell comprises a fiber layer, a mounting cavity is defined by the fiber layer, and the outer surface of the handheld device shell is formed by the outer surface of the fiber layer. According to the handheld equipment shell disclosed by the utility model, the overall strength of the handheld equipment shell can be obviously improved, and cracks and deformation of the handheld equipment shell caused by repeated extrusion, stretching and bending can be effectively prevented.

Description

Technical Field

[0001] The present application relates to the technical field of handheld devices, and particularly to a handheld device housing and a handheld device. Background Art

[0002] With the continuous improvement of people's requirements for the durability and service life of personal hygiene products, the limitations of traditional handheld device housing materials have gradually emerged. The handheld device housings in the prior art are usually made of conventional plastics. The plastics are subject to repeated mechanical stresses such as extrusion, stretching, and bending, and are prone to aging phenomena such as cracks, deformation, edge defects, and yellowing. This not only affects the aesthetics of the handheld device, but also reduces its functionality and user experience. In addition, with the increase in the frequency of outdoor activities and business trips, users have put forward higher requirements for the durability and impact resistance of portable daily necessities.

[0003] The above content is only used to assist in understanding the technical solution of the utility model, and does not represent an admission that the above content is prior art. Summary of the Utility Model

[0004] In view of the above problems, the present utility model proposes a handheld device housing, aiming to solve the technical problems of easy cracking, deformation, and edge defects of the handheld device housing.

[0005] To achieve the above object, the handheld device proposed by the present utility model includes:

[0006] A fiber layer that encloses to form an installation cavity, and the outer surface of the fiber layer forms the outer surface of the handheld device housing.

[0007] In one embodiment, the fiber layer includes a first sub-shell and a second sub-shell, and the first sub-shell and the second sub-shell are connected in the thickness direction of the fiber layer to enclose to form the installation cavity, and the outer surfaces of the first sub-shell and the second sub-shell form the outer surface of the handheld device housing.

[0008] In one embodiment, the first sub-shell and the second sub-shell extend in a long strip shape, and both the first sub-shell and the second sub-shell include a first section and a second section connected along the length direction of the fiber layer. The cross-sectional dimensions of the first section in its length direction are the same, and the cross-sectional dimensions of the second section gradually decrease in the length direction away from the first section.

[0009] In one embodiment, the outer surfaces of the first sections of the first sub-shell and the second sub-shell enclose to form a cylindrical surface, and the outer surfaces of the second sections of the first sub-shell and the second sub-shell enclose to form a dome-shaped surface.

[0010] In one embodiment, the housing of the handheld device includes a connecting member clamped between the first sub-shell and the second sub-shell, and the first sub-shell and the second sub-shell are fixedly connected through the connecting member; both the first sub-shell and the second sub-shell have contour edges, and the connecting member covers the contour edges.

[0011] In one embodiment, the connecting member includes a top ring and a first side and a second side extending along the length direction. One ends of the first side and the second side are respectively fixedly connected to the top ring, and the first side and the second side are respectively clamped between the peripheral edges on both sides of the first sub-shell and the second sub-shell in the thickness direction;

[0012] One ends of the second sections of the first sub-shell and the second sub-shell far from the first sections enclose a top hole, and the top ring fits against the hole wall of the top hole; the outer surfaces of the first side, the second side and the top ring are all smoothly spliced with the outer surface of the fiber layer.

[0013] In one embodiment, the connecting member further includes a bottom ring. One ends of the first side and the second side far from the top ring are both fixedly connected to the bottom ring, and the bottom ring is fixedly connected to one end of the fiber layer far from the top ring; the bottom ring covers the end faces of the first sub-shell and the second sub-shell far from the top ring.

[0014] In one embodiment, the housing of the handheld device further includes an inner shell. The first sub-shell and the second sub-shell cover the outer surface of the inner shell. The inner shell has a receiving cavity. The connecting member is located between the fiber layer and the inner shell and is injection-molded to connect the inner shell and the fiber layer.

[0015] In one embodiment, the inner shell is provided with two oppositely arranged U-shaped grooves extending along the length direction. The U-shaped grooves are located between the first sub-shell and the second sub-shell, and the first side and the second side are respectively embedded in the two U-shaped grooves and are clamped between the first sub-shell and the second sub-shell.

[0016] In one embodiment, the first sub-shell and the second sub-shell are spaced apart to form a connecting groove, and the connecting groove communicates with the U-shaped groove. The width of the U-shaped groove is greater than that of the connecting groove;

[0017] The peripheral edges on both sides of the first side and the second side are provided with limiting ribs, and the limiting ribs are clamped between the fiber layer and the inner shell.

[0018] In one embodiment, an enclosing wall is connected to the inner side of the bottom ring. The first sub-shell and the second sub-shell cover the outer periphery of the enclosing wall, and the end face of the inner shell far from the top ring abuts against the end face of the enclosing wall.

[0019] In one embodiment, connection blocks are provided on the first side and / or the second side, insertion holes adapted to the connection blocks are formed in the inner shell, and the connection blocks extend into the inner shell through the insertion holes.

[0020] In one embodiment, a clamping hole is formed in the inner wall surface of the connection block for connecting with other components of the handheld device.

[0021] In one embodiment, a first positioning hole is formed in one of the inner shell and the first sub-shell, and a first positioning post adapted to the first positioning hole is provided on the other; and / or a second positioning hole is formed in one of the inner shell and the second sub-shell, and a second positioning post adapted to the second positioning hole is provided on the other.

[0022] In one embodiment, the first sub-shell includes a key portion located on the surface of the first sub-shell, and the key portion is formed by thinning the first sub-shell along the thickness direction of the first sub-shell.

[0023] The present utility model further provides a handheld device, including the handheld device housing as described above, and the handheld device is an electric toothbrush.

[0024] The handheld device housing of the present utility model is formed by enclosing a fiber layer to form an installation cavity, and the outer surface of the fiber layer forms the outer surface of the handheld device housing. This setting significantly improves the overall strength of the handheld device housing. The fiber material has the characteristics of high strength and high modulus, and can effectively disperse and resist the mechanical stress applied from the outside. The presence of the fiber layer can effectively prevent cracks and deformation of the handheld device housing caused by repeated extrusion, stretching and bending. Due to the high strength and toughness of the fiber material, the problem of edge breakage of the handheld device housing caused by dropping or collision can be reduced. Even after long-term use, the handheld device housing can still remain intact. The fiber layer is equivalent to forming a high-strength protective layer, enabling the handheld device housing to withstand greater external forces and not be easily damaged, thereby extending the service life of the handheld device housing. Secondly, the fiber layer improves the durability and impact resistance of the handheld device housing to adapt to travel users in various environments. At the same time, the fiber layer has the characteristic of light weight, making the overall weight of the handheld device lighter and improving the use experience. And the texture of the fiber layer has ornamental value, which can meet the user's requirements for the aesthetics of the product. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 The structural schematic diagram of an embodiment of the housing of the handheld device of the present utility model is shown;

[0027] Figure 2 It is the structural explosion diagram of an embodiment of the housing of the handheld device of the present utility model;

[0028] Figure 3 It is the structural schematic diagram of the connecting member of an embodiment of the housing of the handheld device of the present utility model;

[0029] Figure 4 It is the structural schematic diagram of the inner shell of an embodiment of the housing of the handheld device of the present utility model;

[0030] Figure 5 It is the structural schematic diagram of another angle of the housing of the handheld device of the present utility model;

[0031] Figure 6 is Figure 1 the sectional view of the shown handheld device housing along the P-P;

[0032] Explanation of the reference numerals in the drawings:

[0033] Label Name Label Name Label Name 100 Housing of handheld device 120 Connecting piece 128 Card hole 110 Fiber layer 121 Top ring 130 Inner housing 111 First sub-housing 122 First side 131 Shape groove 112 Second sub-housing 123 Second side 132 Connection groove 113 First section 124 Bottom ring 133 Jack 114 Second section 125 Limit rib 134 First positioning hole 115 Contour edge 126 Enclosing wall 117 Second positioning post 116 Top hole 127 Connection block 119 Button part

[0034] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of the technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0036] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, if the descriptions such as "first" and "second" are involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or the solution where A and B are satisfied simultaneously.

[0038] The present utility model provides a housing 100 for a handheld device, which is used for a handheld device.

[0039] In an embodiment of the present utility model, please refer to Figures 1 to 6 , the housing 100 of the handheld device includes a fiber layer 110. The fiber layer 110 encloses to form an installation cavity, and the outer surface of the fiber layer 110 forms the outer surface of the housing 100 of the handheld device.

[0040] In this embodiment, the outer surface of the fiber layer 110 is used to form the outer surface of the housing 100 of the handheld device, so that the overall strength of the housing 100 of the handheld device is significantly improved. The fiber material has the characteristics of high strength and high modulus, and can effectively disperse and resist the mechanical stress applied from the outside. The presence of the fiber layer 110 can effectively prevent cracks and deformations of the housing 100 of the handheld device caused by repeated extrusion, stretching and bending. Due to the high strength and toughness of the fiber material, the problem of edge chipping of the housing 100 of the handheld device caused by dropping or collision can be reduced. Even after long-term use, the housing 100 of the handheld device can still remain intact. The outer surface of the fiber layer 110 is equivalent to forming a high-strength protective layer, enabling the housing 100 of the handheld device to withstand greater external forces and not be easily damaged, thereby extending the service life of the housing 100 of the handheld device. Secondly, the fiber layer 110 improves the durability and impact resistance of the housing 100 of the handheld device to adapt to business travelers in various environments. At the same time, the fiber layer 110 has the characteristic of light weight, making the overall weight of the handheld device lighter and improving the user experience. Moreover, the texture of the fiber layer 110 has ornamental value, which can meet the user's requirements for the aesthetics of the product.

[0041] The material of the fiber layer 110 can be Kevlar fiber, carbon fiber, composite fiber or other fiber materials. To achieve the optimal effect, Kevlar fiber is used to make the fiber layer 110 in this embodiment. The Kevlar fiber layer 110 has extremely high strength and durability, and can resist cracks and deformations of the housing 100 of the handheld device caused by repeated mechanical stresses such as extrusion, stretching or bending.

[0042] It should be noted that the inner surface of the fiber layer 110 is a structure with rigid characteristics. For example, an epoxy resin layer can be coated on the inner surface of the fiber layer 110 to increase its rigidity and durability; a honeycomb pattern can be set on the inner surface, and the high strength-to-weight ratio of the honeycomb structure can be utilized to improve the overall rigidity, or a stainless steel grid can be embedded in the inner surface of the fiber layer 110 to provide additional rigidity and support, etc. A shell with a rigid structure can also be attached to the inner surface of the fiber layer 110. The shape of the installation cavity formed by enclosing the fiber layer 110 can be cylindrical, cubic, or other shapes that can be used to install other components of the handheld device. In this embodiment, the shape of the installation cavity is a combination of a dome shape and a column shape.

[0043] In one embodiment, please refer to Figure 1 , Figure 2 and Figure 6 , the fiber layer 110 includes a first sub-shell 111 and a second sub-shell 112. The first sub-shell 111 and the second sub-shell 112 are connected in the thickness direction of the fiber layer 110 to enclose an installation cavity, and the outer surfaces of the first sub-shell 111 and the second sub-shell 112 form the outer surface of the handheld device housing 100.

[0044] Since the fiber layer 110 of this embodiment uses Kevlar fiber material, if the handheld device housing 100 needs to be integrally formed, it is necessary to manually wind the fiber material 360° on the mold. However, manual operation cannot meet the requirements of mass-producing the fiber layer 110, and the manual operation speed is slow, affecting production efficiency. Therefore, to improve production efficiency and achieve mass production of the fiber layer 110, in this embodiment, the first sub-shell 111 and the second sub-shell 112 are connected in the thickness direction of the fiber layer 110 to form a complete housing. The fiber material and the curing agent can be directly laid on the mold, without the need for pure manual 360° winding of the fiber material, which can reduce labor costs. The mold process is automated, improving production efficiency and meeting the requirements of mass-producing the fiber layer 110.

[0045] In this embodiment, the first sub-shell 111 and the second sub-shell 112 have the same shape. The same mold can be used to manufacture the first sub-shell 111 and the second sub-shell 112, which can realize the reuse of the mold, improve the continuity of the production line and production efficiency. Secondly, the first sub-shell 111 and the second sub-shell 112 produced using the same mold have higher consistency in quality and dimensions, reducing the quality fluctuations caused by mold differences, reducing the probability of unqualified products during the production process, and reducing the scrap rate and rework rate. At the same time, the first sub-shell 111 and the second sub-shell 112 with the same shape use the same mold, reducing the number and types of molds, thus saving the costs of mold manufacturing and maintenance. The reduction in the types of molds makes inventory management more convenient and reduces the costs of mold storage and management.

[0046] Further, the first sub-shell 111 and the second sub-shell 112 extend in a long strip shape. Both the first sub-shell 111 and the second sub-shell 112 include a first section 113 and a second section 114 connected along the length direction of the fiber layer 110. The cross-sectional dimensions of the first section 113 are consistent in its length direction, and the cross-sectional dimensions of the second section 114 gradually decrease in the length direction away from the first section 113.

[0047] In this embodiment, the first sub-shell 111 and the second sub-shell 112 are in a long strip shape. The long strip shape conforms to the natural grasping posture of the human hand, can better fit the shape of the palm, increase the contact area, and improve the stability of holding. The cross-sectional dimensions of the first section 113 are consistent in its length direction. The uniform cross-sectional dimensions ensure that the palm and fingers are not disturbed by irregular shapes when holding, providing a smooth and stable grip feeling. This setting makes the handheld device easy to grasp, provides a comfortable hand feeling, and improves the user experience. The cross-sectional dimensions of the second section 114 gradually decrease in the length direction away from the first section 113, which is beneficial for the installation of other components and facilitates the guiding and fixing of other components.

[0048] Further, the outer surfaces of the first sections 113 of the first sub-shell 111 and the second sub-shell 112 enclose a cylindrical surface, and the outer surfaces of the second sections 114 of the first sub-shell 111 and the second sub-shell 112 enclose a dome-shaped surface. The setting of the cylindrical surface makes the holding feeling more comfortable when holding the handheld device. When the user holds the cylindrical-shaped device, the user's fingers and palm can fit more naturally on the surface of the shell, reducing the discomfort during holding. The shape of the dome-shaped surface is similar to the curved surface of a hemisphere or a partial sphere, with a central bulge at the top and gradually descending towards the surrounding edges, forming an arc-shaped outer surface. The shape of its top can be circular or elliptical. The setting of the dome-shaped surface is beneficial for the installation of other components and facilitates the fixing of other components. At the same time, it increases the sense of line of the handheld device and improves the aesthetics of the handheld device. Secondly, the setting of the dome-shaped surface is beneficial for evenly dispersing the external force to the entire surface. When stressed, the curvature of the dome-shaped surface guides the stress to propagate along the curved surface, forming an arc-shaped path. This arc-shaped path avoids the stress concentration problem in the straight path, enables the stress to propagate and weaken along a longer path, and reduces the risk of material deformation and rupture caused by stress.

[0049] In one embodiment, please refer to Figures 1 to 6 , the housing 100 of the handheld device includes a connecting member 120 clamped between the first sub-shell 111 and the second sub-shell 112. The first sub-shell 111 and the second sub-shell 112 are fixedly connected through the connecting member 120. Both the first sub-shell 111 and the second sub-shell 112 have a contour edge 115, and the connecting member 120 covers the contour edge 115.

[0050] During the production process, the fiber layer 110 may easily cause stacking marks on the contour edge 115 of the first sub-shell 111 and the second sub-shell 112, which affects the aesthetics of the handheld device housing 100. In this embodiment, the connector 120 covers the contour edge 115, which can effectively cover these stacking marks, making the appearance of the housing smoother and more uniform, and significantly improving the visual beauty and overall appearance quality of the product.

[0051] Secondly, the multi-layer composite structure of the fiber layer 110 may be delaminated or peeled off when subjected to external impact or used for a long time. In this embodiment, the connector 120 covers the contour edge 115, which can provide an additional protective layer to effectively prevent external environmental factors such as moisture, friction, etc. from eroding and damaging the fiber layer 110, reduce the possibility of peeling of the fiber layer 110, and extend the service life of the handheld device.

[0052] At the same time, the connector 120 is not only used to cover the contour edge 115, but also fixedly connects the first sub-shell 111 and the second sub-shell 112, thereby enhancing the structural strength of the entire housing. This fixed connection makes the housing more stable when subjected to mechanical stress and external force impact, and is not prone to deformation or breakage, thereby improving the impact resistance and durability of the device. In this embodiment, the connector 120 is injection-molded and connected to the first sub-shell 111 and the second sub-shell 112. During the production process, the first sub-shell 111 and the second sub-shell 112 can be produced separately, and then the connector 120 is formed by injection molding to connect the first sub-shell 111 and the second sub-shell 112, thereby reducing the reliance on complex processes and improving production efficiency and consistency.

[0053] Specifically, the connecting member 120 includes a top ring 121 and a first edge 122 and a second edge 123 extending along the length direction, one end of the first edge 122 and the second edge 123 are respectively fixedly connected to the top ring 121, and the first edge 122 and the second edge 123 are respectively clamped between the two side peripheries of the first subshell 111 and the second subshell 112 in the thickness direction; the second sections 114 of the first subshell 111 and the second subshell 112 are away from the first section 113 to form a top hole 116, and the top ring 121 is attached to the hole wall of the top hole 116; the outer surfaces of the first edge 122, the second edge 123 and the top ring 121 are smoothly spliced ​​with the outer surface of the fiber layer 110.

[0054] In this embodiment, the connecting member 120 includes a top ring 121, a first side 122, and a second side 123. The top ring 121 is fixedly attached to the inner wall of the top hole 116, providing stable top support, which helps reduce stress concentration and deformation in the top part. This arrangement evenly distributes the force over the entire top area under external forces, protecting the top edge of the fiber layer 110. The first side 122 and the second side 123 extend along the length direction and are clamped between the peripheral edges of the sub-shells on both sides in the thickness direction, providing full-length support and protection. This arrangement not only increases the lateral rigidity of the outer shell but also effectively prevents the fiber layer 110 from peeling and damage when impacted from the side. These parts of the connecting member 120 fixedly connect the first sub-shell 111 and the second sub-shell 112 together to form an integral structure. This fixed connection method enhances the overall strength and rigidity of the handheld device outer shell 100, improves its ability to resist mechanical stress and external force impacts during use, and avoids relative movement and separation between the first sub-shell 111 and the second sub-shell 112.

[0055] Secondly, while fixedly connecting the first sub-shell 111 and the second sub-shell 112, the top ring 121, the first side 122, and the second side 123 cover the peripheral edge of the fiber layer 110, providing an additional protective layer. This arrangement effectively prevents the fiber layer 110 from delaminating or peeling during long-term use or under external force impacts, extending the service life of the handheld device outer shell 100. Moreover, the outer surfaces of the first side 122, the second side 123, and the top ring 121 are smoothly joined to the outer surface of the fiber layer 110, making the entire handheld device outer shell 100 look more integrated and smooth. This arrangement reduces visual and tactile discomfort caused by the connection part, improving the aesthetics and user experience of the product.

[0056] Furthermore, the connecting member 120 further includes a bottom ring 124. One end of the first side 122 and the second side 123 away from the top ring 121 are fixedly connected to the bottom ring 124, and the bottom ring 124 is fixedly connected to one end of the fiber layer 110 away from the top ring 121; the bottom ring 124 covers the end faces of the first sub-shell 111 and the second sub-shell 112 away from the top ring 121.

[0057] In this embodiment, by adding a bottom ring 124 to the connecting member 120, the first side 122 and the second side 123 are not only fixedly connected at the top end, but also have fixed points at the bottom. This double-end fixing method effectively enhances the structural rigidity and stability of the entire housing, making the handheld device more durable and less likely to deform or be damaged during use, improving the shock resistance of the handheld device and adapting to various use environments such as outdoor activities and business trips. At the same time, the bottom ring 124 covers the end faces of the first sub-shell 111 and the second sub-shell 112 away from the top ring 121, providing an additional protective layer. This setting prevents the fiber layer 110 from being worn, peeled off, and environmentally eroded at the bottom end face, especially when the handheld device frequently contacts the desktop or other surfaces, protecting the bottom edge from damage.

[0058] In one embodiment, please refer to Figures 2 to 6 , the housing 100 of the handheld device further includes an inner shell 130. The first sub-shell 111 and the second sub-shell 112 cover the outer surface of the inner shell 130. The inner shell 130 has a receiving cavity. The connecting member 120 is located between the fiber layer 110 and the inner shell 130 and is injection-molded to connect the inner shell 130 and the fiber layer 110.

[0059] In this embodiment, the inner shell 130 serves as an integral rigid structure, providing a firm support for the fiber layer 110 and making the structure of the entire housing 100 of the handheld device more stable and durable. The fiber layer 110 covers the outer surface of the inner shell 130, which can fully utilize the excellent performance of the fiber material. At the same time, the rigidity of the inner shell 130 makes the housing 100 of the handheld device more solid and less likely to deform.

[0060] The connecting member 120 can be injection-molded to achieve high-precision manufacturing, enabling the dimensional tolerance of the connecting member 120 to be controlled within a very small range. This high-precision manufacturing ensures the tight fit of the connecting member 120 with the first sub-shell 111 and the second sub-shell 112, reduces the assembly error, and ensures the overall quality of the housing 100 of the handheld device.

[0061] Specifically, the inner shell 130 is provided with two oppositely arranged groove-shaped slots 131 extending along the length direction. The groove-shaped slots 131 are located between the first sub-shell 111 and the second sub-shell 112. The first side 122 and the second side 123 are respectively inserted into the two groove-shaped slots 131 and are clamped between the first sub-shell 111 and the second sub-shell 112.

[0062] In this embodiment, the U-shaped groove 131 provides a stable embedding position, enabling the first side 122 and the second side 123 to be precisely embedded and fixed in the inner shell 130. This embedding and fixing method increases the connection strength between the first sub-shell 111 and the second sub-shell 112 and the inner shell 130, reduces looseness or displacement after assembly, ensures the overall stability of the handheld device housing 100, and extends the service life of the product. At the same time, by setting the U-shaped groove 131 on the inner shell 130 and embedding the first side 122 and the second side 123 of the connecting member 120 therein, high-precision fitting can be achieved. This precise fitting reduces assembly errors, improves the consistency and quality of the product. Secondly, when the connecting member 120 is subjected to lateral stress, the first side 122 and the second side 123 can disperse the stress to a larger area of the inner shell 130 and the fiber layer 110. The dispersed stress reduces stress concentration at a single location, reduces the risk of material fatigue and damage, and thus enhances the durability and shock resistance of the handheld device housing 100.

[0063] Furthermore, the first sub-shell 111 and the second sub-shell 112 are spaced apart to form a connection groove 132. The connection groove 132 communicates with the U-shaped groove 131, and the width of the U-shaped groove 131 is greater than that of the connection groove 132. Limit ribs 125 are provided on the peripheral edges of both sides of the first side 122 and the second side 123, and the limit ribs 125 are clamped between the fiber layer 110 and the inner shell 130.

[0064] In this embodiment, limit ribs 125 are provided on the peripheral edges of both sides of the first side 122 and the second side 123, and the limit ribs 125 are clamped between the fiber layer 110 and the inner shell 130. The limit ribs 125 provide a mechanical clamping position, preventing the connecting member 120 from falling off the handheld device during use, ensuring the stability of the connecting member 120 after assembly, and improving the durability and safety of the handheld device.

[0065] Furthermore, a connection block 127 is provided on the first side 122 and / or the second side 123. The inner shell 130 is provided with a jack 133 adapted for plugging and connecting with the connection block 127, and the connection block 127 extends into the inner shell 130 through the jack 133. A clamping hole 128 is provided on the inner wall surface of the connection block 127 for connecting with other components of the handheld device.

[0066] In this embodiment, the connection block 127 is plugged into the inner shell 130 through the jack 133 to form a stable connection, ensuring the firmness between the connecting member 120 and the inner shell 130. This connection method can limit and fix the position of the connecting member 120, prevent it from loosening or falling off during use, and maintain the overall stability of the handheld device housing 100.

[0067] Secondly, since the first sub-shell 111, the second sub-shell 112, and the inner shell 130 are each formed separately and then combined and injection-molded, there is a situation where the tolerance is relatively large. Therefore, in this embodiment, the card holes 128 for connecting other components of the handheld device are selected to be provided on the connecting block 127 of the connecting member 120. Because the connecting member 120 is injection-molded last, the dimensional accuracy is higher, and it is easier to control and adjust the dimensions. The connecting block 127 is located at the position where the handheld device housing 100 is subjected to the greatest force. Because the connecting block 127 needs to bear the forces from the connection of other components and the product dropping and collision, etc., setting the card holes 128 on the connecting block 127 can ensure that the connecting block 127 can firmly connect other components when receiving force, enhancing the firmness and stability of the connection. In this embodiment, the number of card holes 128 is two. In other embodiments, the number of card holes 128 can be set according to requirements.

[0068] In one embodiment, an enclosing wall is connected to the inner side of the bottom ring 124. The first sub-shell 111 and the second sub-shell 112 cover the outer periphery of the enclosing wall, and the end face of the inner shell 130 away from the top ring 121 abuts against the end face of the enclosing wall.

[0069] In this embodiment, the length of the inner shell 130 is less than the length of the fiber layer 110. There is a certain distance between the fiber layer 110 and the end of the inner shell 130 away from the top ring 121. The existence of the enclosing wall increases the support at the bottom of the fiber layer 110, improving the overall rigidity and stability of the fiber layer 110, making the fiber layer 110 more solid when bearing external forces, and effectively preventing the deformation and damage of the fiber layer 110. Secondly, the end face of the inner shell 130 abuts against the end face of the enclosing wall, forming a stable connection effect, ensuring the tight combination of the inner shell 130 and the enclosing wall, enhancing the structural stability between the inner shell 130 and the enclosing wall, and reducing the loosening and falling-off situations that may occur during use.

[0070] In one embodiment, one of the inner shell 130 and the first sub-shell 111 is provided with a first positioning hole 134, and the other is provided with a first positioning post adapted to be inserted into the first positioning hole 134; and / or one of the inner shell 130 and the second sub-shell 112 is provided with a second positioning hole, and the other is provided with a second positioning post 117 adapted to be inserted into the second positioning hole.

[0071] In this embodiment, the setting of the positioning holes and positioning posts makes the assembly between the first sub-shell 111 and the inner shell 130, and between the second sub-shell 112 and the inner shell 130 more precise and accurate. The positioning holes and positioning posts can ensure the correct position of the components during the assembly process, avoiding misalignment or offset between the components, thereby improving the assembly efficiency and accuracy.

[0072] During the production process, first insert the first positioning post into the first positioning hole 134 to achieve the assembly of the first sub-shell 111 and the inner shell 130. Then insert the second positioning post 117 into the second positioning hole to achieve the assembly of the second sub-shell 112 and the other side of the inner shell 130. After that, connect the first sub-shell 111, the second sub-shell 112 and the inner shell 130 through the injection-molded connector 120 to form the complete handheld device housing 100. This assembly method is simple and easy to operate, and can achieve large-scale mass production.

[0073] In one embodiment, the first sub-shell 111 includes a button portion 119. The button portion 119 is located on the surface of the first sub-shell 111 and is formed by thinning the first sub-shell 111 along the thickness direction of the first sub-shell 111.

[0074] Since the buttons of the handheld device are tactile feedback type buttons, the total thickness of the area where the inner shell 130 contacts the button portion 119 and the button portion 119 needs to be controlled within 0.85 mm to achieve good button touch and operation feel without problems such as accidental touch. However, whether it is a fiber material or a conventional plastic, in order to ensure the structural strength and stress performance of these materials during the processing and forming process, the thickness of each shell needs to reach at least 0.5 mm. At this time, the minimum dimension of the total thickness of the inner shell 130 and the button portion 119 reaches more than 1 mm, and there will be process gaps and tolerances, and the total thickness of the inner shell 130 and the button portion 119 will reach about 1.2 mm, affecting the function of the buttons. In this embodiment, the thickness of the area where the inner shell 130 contacts the button portion 119 is set to 0.5 mm, the initial thickness of the button portion 119 is set to 0.5 mm, and then by thinning the button portion 119 along the thickness direction of the first sub-shell 111, the total thickness of the area where the inner shell 130 contacts the button portion 119 and the button portion 119 is controlled within 0.85 mm. This setting enables the total thickness to meet the setting requirements while maintaining the normal function of the buttons. Even when the thickness is limited, the operation and tactile feedback of the buttons can still be achieved, ensuring the functional integrity of the product.

[0075] The present utility model also proposes a handheld device, which is an electric toothbrush. The handheld device includes the handheld device housing 100 as described above. The specific structure of the handheld device housing 100 refers to the above embodiments. Since this handheld device adopts all the technical solutions of the above all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here. Among them, the top hole 116 can be plugged with the brush head of the electric toothbrush, and the card hole 128 can be connected to the movement of the electric toothbrush to achieve the electric function.

[0076] 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 foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and 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. A handheld device housing, characterized in that: include: The fiber layer encloses and forms a mounting cavity, and the outer surface of the fiber layer forms the outer surface of the handheld device housing.

2. The handheld device housing according to claim 1, characterized in that: The fiber layer includes a first subshell and a second subshell, the first subshell and the second subshell are connected in the thickness direction of the fiber layer to enclose the installation cavity, and the outer surfaces of the first subshell and the second subshell form the outer surface of the handheld device housing.

3. The handheld device housing according to claim 2, characterized in that: The first subshell and the second subshell extend in a long strip shape, and both the first subshell and the second subshell include a first section and a second section connected along the length direction of the fiber layer, the cross-sectional dimensions of the first section in its length direction are consistent, and the cross-sectional dimensions of the second section in the length direction away from the first section gradually decrease.

4. The handheld device housing according to claim 3, characterized in that: The outer surfaces of the first subshell and the first section of the second subshell together form a cylindrical surface, and the outer surfaces of the second section of the first subshell and the second subshell together form a dome surface.

5. The handheld device housing according to claim 3, characterized in that: The handheld device housing includes a connector sandwiched between the first sub-shell and the second sub-shell, and the first sub-shell and the second sub-shell are fixedly connected by the connector; the first sub-shell and the second sub-shell both have contour edges, and the connector covers the contour edges.

6. The handheld device housing according to claim 5, characterized in that: The connecting member comprises a top ring and a first side and a second side extending along the length direction, one end of the first side and the second side are respectively fixedly connected to the top ring, and the first side and the second side are respectively sandwiched between the two side peripheries of the first subshell and the second subshell in the thickness direction; The first subshell and the second subshell have one end away from the first section to enclose a top hole, and the top ring is attached to the hole wall of the top hole; the outer surfaces of the first edge, the second edge and the top ring are smoothly spliced ​​with the outer surface of the fiber layer.

7. The handheld device housing according to claim 6, wherein: The connecting member also includes a bottom ring, and the ends of the first edge and the second edge away from the top ring are fixedly connected to the bottom ring, and the bottom ring is fixedly connected to the end of the fiber layer away from the top ring; the bottom ring covers the end faces of the first subshell and the second subshell away from the top ring.

8. The handheld device housing according to claim 7, wherein: The handheld device housing also includes an inner shell, the first sub-shell and the second sub-shell cover the outer surface of the inner shell, the inner shell has a accommodating cavity, the connecting member is located between the fiber layer and the inner shell, and the inner shell and the fiber layer are injection molded and connected.

9. The handheld device housing according to claim 8, characterized in that: The inner shell is provided with two oppositely arranged shaped grooves extending along the length direction, the shaped grooves are located between the first sub-shell and the second sub-shell, the first side and the second side are respectively embedded in the two shaped grooves and clamped between the first sub-shell and the second sub-shell.

10. The handheld device housing according to claim 9, wherein: The first sub-shell and the second sub-shell are spaced apart to form a connecting groove, the connecting groove is connected to the shaped groove, and the width of the shaped groove is greater than that of the connecting groove; Limiting convex strips are arranged on both side peripheries of the first side and the second side, and the limiting convex strips are sandwiched between the fiber layer and the inner shell.

11. The handheld device housing according to claim 10, wherein: The inner side of the bottom ring is connected with an enclosure wall, the first subshell and the second subshell cover the outer periphery of the enclosure wall, and the end surface of the inner shell away from the top ring is overlapped with the end surface of the enclosure wall.

12. The handheld device housing according to claim 11, wherein: The first side and / or the second side is provided with a connecting block, the inner shell is provided with a plug hole adapted to be plugged with the connecting block, and the connecting block extends into the inner shell through the plug hole.

13. The handheld device housing according to claim 12, wherein: The inner wall surface of the connection block is provided with a clamping hole for connecting with other parts of the handheld device.

14. The handheld device housing according to claim 8, wherein: One of the inner shell and the first sub-shell is provided with a first positioning hole, and the other is provided with a first positioning column adapted to be plugged into the first positioning hole; and / or one of the inner shell and the second sub-shell is provided with a second positioning hole, and the other is provided with a second positioning column adapted to be plugged into the second positioning hole.

15. The handheld device housing according to claim 2, wherein: The first sub-shell includes a button portion, the button portion is located on a surface of the first sub-shell, and the button portion is formed by thinning the first sub-shell along a thickness direction of the first sub-shell.

16. The handheld device housing according to any one of claims 1 to 15, characterized in that: The fiber layer is a Kevlar fiber layer.

17. A handheld device, characterized in that: The invention comprises a handheld device housing as claimed in any one of claims 1 to 16, wherein the handheld device is an electric toothbrush.

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