Personal care device
By forming a blind light guide hole on the shell of the personal care device and thinning the area, the problem of high process cost during assembly of light guide parts is solved, and the effect of reducing costs and maintaining the appearance texture is achieved.
Patent Information
- Application Number
- CN202421297886.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-06
AI Technical Summary
When assembling light guides, existing personal care devices need to be opened through holes on the shell, resulting in high process costs and affecting the appearance texture.
By forming a thickness reduction area at the corresponding blind hole positions of the housing, the light can penetrate without openings, and the use of additional oil spray coatings is avoided.
Reduces the process cost, maintains the appearance and texture of the shell, and does not affect the overall strength of the shell.
Smart Images
Figure CN222655512U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of personal care, and in particular to a personal care device. Background Art
[0002] Personal care devices are common household cleaning appliances, such as electric toothbrushes, electric shavers, or electric hair dryers. Personal care devices usually have multiple working modes. Personal care devices use indicator lights to indicate different working modes of the personal care device, so that users can distinguish the working modes of the personal care device by observing the lighting mode of the indicator lights.
[0003] The personal care device also includes a housing and a light guide, and the light of the indicator light is displayed through the light guide. When the light guide is installed on the housing, the housing needs to have a through hole, and then the light guide is filled in the through hole.
[0004] However, the light guide cannot fill the through hole on the housing, which affects the appearance and texture of the housing. In order to ensure the appearance and texture of the housing, an additional spray coating needs to be added to the outer surface of the housing, which results in high process costs. Utility Model Content
[0005] The main purpose of the present application is to provide a personal care device, which aims to solve the technical problem of high process cost when the existing light guide is assembled to the housing.
[0006] To achieve the above-mentioned purpose, the present application provides a personal care device, comprising a housing and a light guide positioned on the housing;
[0007] The housing has a cavity, a light-guiding blind hole is provided on the cavity wall of the cavity, and a thickness-reduced region is formed on the housing at a position corresponding to the light-guiding blind hole, and the thickness-reduced region is configured to be suitable for light to penetrate;
[0008] The light guide member is embedded in the light guide blind hole.
[0009] Optionally, the wall thickness of the reduced thickness area is 0.1 mm-0.5 mm.
[0010] Optionally, the wall thickness of the reduced thickness area is 0.3 mm-0.5 mm.
[0011] Optionally, one of the housing and the light guide is provided with a positioning protrusion, and the other is provided with a positioning groove matched with the positioning protrusion.
[0012] Optionally, the cavity wall of the cavity is further provided with a fixing groove, the light guide blind hole is arranged at the bottom of the fixing groove, and the light guide member includes:
[0013] A body, embedded in the fixing groove; and
[0014] The light guide column is attached to the body and is embedded in the light guide blind hole.
[0015] Optionally, the light-guiding blind hole comprises a first hole segment and a second hole segment distributed along the axial direction thereof, the first hole segment penetrates the cavity wall of the cavity, the aperture of the first hole segment gradually decreases from the inside to the outside, and the second hole segment is a constant diameter segment and its aperture is equal to the minimum aperture of the first hole segment;
[0016] The light guiding column is matched with the light guiding blind hole.
[0017] Optionally, the personal care device further comprises:
[0018] A movement, which is arranged in the housing, and the movement is provided with a guide groove;
[0019] The main body is provided with a first convex rib, the cavity wall of the cavity is provided with a second convex rib, the shell is a long cylindrical structure, the first convex rib and the second convex rib are distributed and aligned along the length direction of the shell and are jointly spliced to form a guide rib, and the guide groove is slidably matched with the guide rib.
[0020] Optionally, the personal care device has two light guides, which are spaced apart along the length direction of the housing, and the second rib is arranged between the two light guides and is spliced together with the first ribs on the two light guides to form the guide rib.
[0021] Optionally, the personal care device further comprises:
[0022] a movement disposed in the housing; and
[0023] A light source is arranged on the core, and light emitted by the light source passes through the light guide blind hole via the light guide component.
[0024] The present application discloses a personal care device, which forms a thinned area at a position of a shell corresponding to a light guide blind hole, so that light passing through a light guide member can penetrate the thinned area. There is no need to open a hole in the shell, and thus there is no need to add an additional spray coating on the outer surface of the shell, which can ensure the appearance texture of the shell and reduce the process cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. 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.
[0026] Figure 1 A structural schematic diagram of a personal care device is shown;
[0027] Figure 2 for Figure 1 A schematic diagram of the exploded structure of a personal care device;
[0028] Figure 3 for Figure 2 Schematic diagram of the structure of the middle shell;
[0029] Figure 4 for Figure 3 A schematic diagram of the structure of the light guide and part of the housing;
[0030] Figure 5 for Figure 4 Schematic diagram of the exploded structure of the light guide and part of the housing;
[0031] Figure 6 for Figure 4 A schematic diagram of another perspective of the exploded structure of the light guide and part of the housing;
[0032] Figure 7 for Figure 6 A schematic diagram of the structure of the light guide;
[0033] Figure 8 for Figure 4 A schematic diagram of the structure of the light guide and part of the housing from another perspective;
[0034] Fig. 9 for Figure 8 AA section view in;
[0035] Fig.10 for Figure 8 BB section view in;
[0036] Fig.11 for Figure 1 A partial structural diagram of a personal care device;
[0037] Fig.12 for Fig.11 CC section view in;
[0038] Fig.13 for Fig.11 DD section view in;
[0039] Fig.14 for Figure 2 Sectional view of the middle shell, see the section position Fig.11 EE section line in. DETAILED DESCRIPTION
[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0041] like Figures 1 to 13 As shown, the present application provides a personal care device 100, including a shell 10 and a light guide 20 positioned on the shell 10, the shell 10 has a cavity 13, the cavity wall of the cavity 13 is provided with a light guide blind hole 11, the shell 10 forms a thickness reduction area 111 at a position corresponding to the light guide blind hole 11, and the thickness reduction area 111 is configured to be suitable for light to penetrate; the light guide 20 is embedded in the light guide blind hole 11.
[0042] By forming a reduced thickness region 111 at a position of the housing 10 corresponding to the light guide blind hole 11, the light passing through the light guide member 20 can penetrate the reduced thickness region 111; there is no need to open a hole in the housing 10, and thus there is no need to add an additional spray coating on the outer surface of the housing 10, which can ensure the appearance and texture of the housing 10 and reduce the process cost. In addition, by using the reduced thickness region 111 in a part of the housing 10, the overall strength of the housing 10 can be maintained.
[0043] In this embodiment, if Figures 1 to 12 As shown, the personal care device 100 is a product such as an electric toothbrush, an electric shaver or an electric hair dryer, which will not be described one by one here; the remaining structure of the product of the personal care device 100 can adopt the existing technology and will not be further elaborated here. The personal care device 100 also includes a movement 30 and a light source, and the movement 30 is arranged in the housing 10; the light source is arranged in the movement 30, and the light emitted by the light source passes through the light guide blind hole 11 through the light guide member 20. When the movement 30 and the light source are assembled into the housing 10, the light source corresponds to the light guide member 20 to ensure that the light emitted by the light source passes through the light guide blind hole 11 through the light guide member 20. Among them, the light source can be an LED lamp.
[0044] In this embodiment, if Figures 1 to 13As shown, the specific shape of the shell 10 is not strictly limited; for example, the shell 10 is arranged in a long cylindrical shape, so that the user can hold it easily. The cross-sectional shape of the shell 10 is various; the cross-section of the shell 10 can be arranged in a circular, square, oval or other shapes. In the present embodiment, the shell 10 is roughly cylindrical in structure; the cavity 13 of the shell 10 is arranged at an opening 131 at one axial end of the shell 10, so that the movement 30 can be assembled into the cavity 13. Among them, the personal care device 100 also includes a cover 40, and after the movement 30 is assembled into the cavity 13, the cover 40 closes the opening 131. The cover 40 is fixed to the shell 10 and / or the movement 30 by welding, bonding or screwing.
[0045] In this embodiment, if Figures 2 to 10 As shown, the light-guiding blind hole 11 does not penetrate the housing 10; the housing 10 is partially recessed to form the light-guiding blind hole 11; and the thinned area 111 is located at the bottom wall of the light-guiding blind hole 11. The number of the light-guiding blind holes 11 is set according to actual needs and will not be further elaborated here. For example, the number of the light-guiding blind holes 11 is 1, 2, 3 or 4 or more. From the opening of the light-guiding blind hole 11 to the bottom wall of the light-guiding blind hole 11, the cross-sectional area of the light-guiding blind hole 11 gradually decreases, which can achieve the effect of gathering light. The cross-section of the light-guiding blind hole 11 can be circular or non-circular.
[0046] In this embodiment, if Figures 2 to 10 As shown, the reduced thickness area 111 can be understood as follows: the thickness of the housing 10 in the reduced thickness area 111 is thinner than the thickness of the rest of the housing 10. The wall thickness of the reduced thickness area 111 is 0.1mm-0.5mm; if the wall thickness of the reduced thickness area 111 is too large, light may not be able to penetrate the reduced thickness area 111; if the wall thickness of the reduced thickness area 111 is too small, it will increase the difficulty of processing and also reduce the strength of the reduced thickness area 111. Preferably, the wall thickness of the reduced thickness area 111 is 0.3mm-0.5mm.
[0047] In this embodiment, if Figures 3 to 10 As shown, the light emitted by the light source can pass through the light guide 20 and be guided to the thinned area 111 by the light guide 20. The light guide 20 is non-detachably embedded in the light guide blind hole 11 by secondary injection molding to enhance the structural strength of the connection between the light guide 20 and the housing 10. The number of light guides 20 can be set according to actual needs; for example, the personal care device 100 has two light guides 20, and the two light guides 20 are spaced apart along the length direction of the housing 10.
[0048] The light guide 20 includes a body 21 and a light guide column 22 ; the light guide column 22 is attached to the body 21 and engages with the light guide blind hole 11 ; light can pass through the body 21 and the light guide column 22 through the thinned area 111 to be displayed externally.
[0049] In this embodiment, if Figures 3 to 10 As shown, the body 21 is generally a plate-shaped structure; for example, the body 21 is generally a square structure. The body 21 can fit with the wall of the cavity 13 to reduce the installation gap between the light guide 20 and the housing 10. The wall of the cavity 13 is an arc-shaped surface facing the body 21; accordingly, the body 21 is generally an arc-shaped plate-shaped structure.
[0050] In this embodiment, if Figures 6 to 10 As shown, the light guide column 22 is located on the side of the body 21 facing the light guide blind hole 11 and protrudes outward from the body 21. Fig.14 In some embodiments, the light guide blind hole 11 includes a first hole segment 112 and a second hole segment 113 distributed along its axial direction, the first hole segment 112 penetrates the cavity wall of the cavity 13, the aperture of the first hole segment 112 gradually decreases from the inside to the outside, and the second hole segment 113 is a constant diameter segment and its aperture is equal to the minimum aperture of the first hole segment 112. The light guide column is adapted to the light guide blind hole.
[0051] The cross-sections of the first hole section 112 and the second hole section 113 may be circular. When a circular shape is adopted, as shown in FIG. Figure 7 As shown, the light guide column 22 includes a truncated cone structure 221 and a cylindrical structure 222. The truncated cone structure 221 is attached to the body 21 and engages with the first hole segment 112. The cylindrical structure 222 is attached to the side of the truncated cone structure 221 facing away from the body 21 and engages with the second hole segment 113.
[0052] Of course, in other embodiments, the cross-sections of the first hole segment 112 and the second hole segment 113 may be non-circular, as long as the aperture of the first hole segment 112 is gradually reduced.
[0053] In this embodiment, the tapered configuration of the truncated cone structure 221 can gather light and gather the light to the smaller truncated cone structure 221 . The truncated cone structure 221 can make the light more uniform and soft.
[0054] For the same light guide 20, the number of light guide columns 22 can be set according to actual needs; for example, the number of light guide columns 22 is 1, 2, 3 or more; multiple light guide columns 22 are arranged at intervals around the circumference of the housing 10, or multiple light guide columns 22 are arranged at intervals along the axial direction of the housing 10. The number of light sources corresponds to the number of light guide columns 22; the number of light guide blind holes 11 corresponds to the number of light guide columns 22, and each light guide column 22 can extend into the corresponding light guide blind hole 11. In this embodiment, one of the two light guides 20 has one light guide column 22, and the other light guide has three light guide columns 22.
[0055] In this embodiment, if Figures 3 to 10 As shown, the cavity wall of the cavity 13 is further provided with a fixing groove 12, the light guide blind hole 11 is arranged at the groove bottom of the fixing groove 12, and the body 21 is embedded in the fixing groove 12; the fixing groove 12 can locate the position of the light guide 20, so that the light guide 20 can be quickly installed at the corresponding position of the housing 10, thereby facilitating installation and positioning. The outer contour of the body 21 is roughly consistent with the outer contour of the fixing groove 12, so that when the light guide 20 is embedded in the fixing groove 12, the position of the light guide 20 can be limited.
[0056] In this embodiment, if Figures 3 to 10 As shown, one of the housing 10 and the light guide 20 is provided with a positioning protrusion 15, and the other is provided with a positioning groove 211 that cooperates with the positioning protrusion 15; when the light guide 20 is assembled into the fixing groove 12, the positioning protrusion 15 is embedded in the positioning groove 211, so as to further locate the installation position of the light guide 20. Among them, the positioning groove 211 runs through the body 21, and the positioning protrusion 15 is located on the bottom wall of the fixing groove 12. Along the axial direction or circumferential direction of the housing 10, the positioning groove 211 and the light guide column 22 are arranged at intervals. When there are multiple light guides 22, along the axial direction or circumferential direction of the housing 10, at least one positioning groove 211 is located between two light guides 22, which can make the injection molding effect of the housing 10 and the light guide 20 good, and the structure between the housing 10 and the light guide 20 is more solid.
[0057] Further, the positioning protrusion 15 is generally in a strip-shaped structure; the positioning protrusion 15 extends along the axial direction of the housing 10, or the positioning protrusion 15 extends along the circumferential direction of the housing 10; the outer contour of the positioning groove 211 is generally consistent with the outer contour of the positioning protrusion 15. The number of positioning protrusions 15 can be 1, 2, or 3 or more; the number of positioning grooves 211 corresponds to the number of positioning protrusions 15, and each positioning protrusion 15 can be embedded in the corresponding positioning groove 211. Multiple positioning protrusions 15 can be arranged at intervals along the axial direction of the housing 10; or multiple positioning protrusions 15 can also be arranged at intervals around the circumference of the housing 10.
[0058] In this embodiment, if Figure 2 As shown, the movement 30 includes an inner shell and a battery and a motor installed in the inner shell, and the battery is electrically connected to the motor to drive the motor. When the movement 30 is assembled into the outer shell 10, it can be fixed in the outer shell 10 by welding, bonding or screws.
[0059] The assembly method of the movement 30 and the housing 10; Referring to one embodiment, as Figures 2 to 5 as well as Figures 11 to 13 As shown, the movement 30 is provided with a guide groove 31; the body 21 is provided with a first convex rib 212, and the cavity wall of the cavity 13 is provided with a second convex rib 14; the first convex rib 212 and the second convex rib 14 are distributed along the length direction of the housing 10 and are aligned and spliced together to form a guide rib, and the guide groove 31 and the guide rib are slidably matched; when the movement 30 is assembled into the cavity 13, the movement 30 is pushed so that the guide rib can slide along the guide groove 31, thereby limiting the sliding path of the movement 30 in the cavity 13. Among them, the second convex rib 14 is arranged between the two light guides 20, and is spliced together with the first convex rib 212 on the two light guides 20 to form a guide rib.
[0060] In this embodiment, if Figures 2 to 5 as well as Figures 11 to 13 As shown, the guide rib is a strip structure; the guide rib extends along the axial direction of the housing 10. The guide rib is located on the inner side of the housing 10; the guide groove is opened on the outer side of the movement 30; the first convex rib 212 is located on the side of the body 21 facing away from the light guide blind hole 11. Among them, the number of guide ribs and the number of guide grooves 31 are adjusted according to actual needs; the number of guide ribs is the same as the number of guide grooves 31, and the guide ribs cooperate with the corresponding guide grooves 31. For example, the number of guide ribs is two, and the two guide ribs are arranged at intervals around the outer periphery of the housing 10. Among them, the two guide ribs avoid the electronic components 32 on the movement 30.
[0061] 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 it. 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. A personal care device, comprising a housing and a light guide positioned on the housing, characterized in that: The housing has a cavity, a light-guiding blind hole is provided on the cavity wall of the cavity, and a thickness-reduced region is formed on the housing at a position corresponding to the light-guiding blind hole, and the thickness-reduced region is configured to be suitable for light to penetrate; The light guide member is embedded in the light guide blind hole.
2. A personal care device according to claim 1, characterized in that: The light guide component is non-detachably embedded in the light guide blind hole by secondary injection molding.
3. A personal care device according to claim 1, characterized in that: The wall thickness of the reduced thickness area is 0.1 mm-0.5 mm.
4. A personal care device according to claim 1 or 3, characterized in that: The wall thickness of the reduced thickness area is 0.3mm-0.5mm.
5. A personal care device according to claim 1, characterized in that: One of the housing and the light guide is provided with a positioning protrusion, and the other is provided with a positioning groove matched with the positioning protrusion.
6. A personal care device according to any one of claims 1 to 5, characterized in that: The cavity wall of the cavity is further provided with a fixing groove, the light guide blind hole is arranged at the bottom of the fixing groove, and the light guide member comprises: A body, embedded in the fixing groove; and The light guide column is attached to the body and is embedded in the light guide blind hole.
7. A personal care device according to claim 6, characterized in that: The light-guiding blind hole comprises a first hole segment and a second hole segment distributed along the axial direction thereof, the first hole segment penetrates the cavity wall of the cavity, the aperture of the first hole segment gradually decreases from the inside to the outside, and the second hole segment is a constant diameter segment and its aperture is equal to the minimum aperture of the first hole segment; The light guiding column is matched with the light guiding blind hole.
8. A personal care device according to claim 7, characterized in that: The personal care device further comprises: A movement, which is arranged in the housing, and the movement is provided with a guide groove; The main body is provided with a first convex rib, the cavity wall of the cavity is provided with a second convex rib, the shell is a long cylindrical structure, the first convex rib and the second convex rib are distributed and aligned along the length direction of the shell and are jointly spliced to form a guide rib, and the guide groove is slidably matched with the guide rib.
9. A personal care device according to claim 8, characterized in that: The personal care device has two light guides, which are spaced apart along the length direction of the housing. The second rib is arranged between the two light guides and is joined with the first ribs on the two light guides to form the guide rib.
10. A personal care device according to claim 1, characterized in that: The personal care device further comprises: a movement disposed in the housing; and A light source is arranged on the core, and light emitted by the light source passes through the light guide blind hole via the light guide component.