Shell assembly, key board mechanism and household appliance

Abstract

The utility model discloses a shell assembly, a keyboard plate mechanism and a household electrical appliance, and the shell is made of a light-proof material and wraps a light guide part in an injection molding manner, so that the light guide part and the shell form a part, and no gap exists between the light guide part and the shell. In this way, light entering from the light inlet side of the light guide part can enable the key part displayed on the outer surface of the shell to be lighted and displayed, chromatic aberration and light leakage are avoided, the color development effect, the display color, the bright effect and the like are ensured, the product appearance consistency is good, and the user visual sense is better.

Description

Technical Field

[0001] This application relates to the technical field of household electrical appliance products, and more particularly to a housing assembly, a keypad mechanism, and a household appliance. Background Art

[0002] As a low-cost and efficient display solution, the combination application of LED lights and the spring touch key control solution has been popularized in most induction cooker products.

[0003] Currently, the product housing with key icons is usually made by in-mold injection or by opening key holes. In the former case, the light transmittance of the film is different, resulting in color differences in the display of the keys. In the latter case, there are gaps and light leakage is also likely to occur. Therefore, the appearance consistency of the product is poor and the user experience is not good. Summary of the Utility Model

[0004] The purpose of this application is to provide a housing assembly, a keypad mechanism, and a household appliance, so that there will be no color difference and light leakage when the key part lights up, ensuring the color rendering effect, display color, bright effect, etc., with good appearance consistency of the product and better user experience.

[0005] The embodiments of this application can be implemented as follows:

[0006] In a first aspect, the present utility model provides a housing assembly, including:

[0007] A light guide member, the light emitting side of the light guide member has a key part;

[0008] A housing, made of an opaque material and injection-molded outside the light guide member, the light incident side of the light guide member appears on the inner surface of the housing, and the side of the key part facing away from the light incident side of the light guide member appears on the outer surface of the housing.

[0009] In an optional embodiment, the key part is formed in a convex shape on the light emitting side.

[0010] In an optional embodiment, the light guide member includes a plurality of light guide columns and a connecting part, the circumferential sides of each light guide column are integrally connected to the connecting part, and each end of each light guide column forms a light incident side and a light emitting side respectively.

[0011] In an optional embodiment, one end of the light guide column facing the inside of the housing has a recessed groove, and the bottom of each recessed groove serves as the light incident side of one light guide column.

[0012] In an optional embodiment, the housing assembly further includes a light shielding member disposed on the light incident side of the light guide member.

[0013] In an alternative embodiment, the light-shielding member has a light-transmitting portion corresponding to the key portion.

[0014] In an alternative embodiment, the shape of the light-transmitting portion is adapted to the shape of the key portion.

[0015] In an alternative embodiment, the light-transmitting portion includes a light-transmitting hole penetrating the light-shielding member.

[0016] In an alternative embodiment, the light guide member includes a plurality of light guide columns and a connecting portion. The circumferential side surfaces of the light guide columns are integrally connected to the connecting portion. One light incident side and one light exit side are respectively formed at both ends of each light guide column.

[0017] The light-shielding member has a plurality of the light-transmitting portions, and the light-transmitting portions correspond to the light guide columns one by one.

[0018] In an alternative embodiment, the light-shielding member includes a light-shielding film. The light-shielding film extends along the arrangement direction of the light guide columns, and the light-shielding film is attached to the light incident side of each light guide column.

[0019] In an alternative embodiment, one end of the light guide column facing the inside of the housing has a recessed groove. The bottom of each recessed groove serves as the light incident side of one light guide column. The recessed groove penetrates the circumferential side surface of the light guide column to form an avoidance opening on the circumferential side surface of the light guide column, and the light-shielding member passes through the avoidance opening.

[0020] In an alternative embodiment, the light-shielding member is provided with positioning holes for positioning and mating with an injection mold.

[0021] In a second aspect, the present utility model provides a key board mechanism, including the housing assembly according to any one of the foregoing embodiments and a key assembly located inside the housing.

[0022] The key assembly includes a PCB and a light-emitting key provided on the PCB. The light-emitting key faces the light incident side of the light guide member.

[0023] In a third aspect, the present utility model provides a household appliance, including the key board mechanism according to the foregoing embodiment.

[0024] Compared with the prior art, the beneficial effects of the embodiments of the present application include, for example:

[0025] The outer shell is injection-molded with a light-impermeable material outside the light guide member, so that the light guide member and the outer shell form a component, and there is no gap between the light guide member and the outer shell. In this way, the light entering from the light incident side of the light guide member can make the key portion displayed on the outer surface of the outer shell light up, without color difference and light leakage, ensuring the color rendering effect, display color, bright effect, etc. The product appearance has good consistency and a better visual experience for users. Brief Description of the Drawings

[0026] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 It is a cross-sectional view of the key plate mechanism of the embodiment of the present application;

[0028] Figure 2 It is a schematic diagram of the outer shell assembly of the embodiment of the present application;

[0029] Figure 3 It is one of the schematic diagrams of the light guide member of the embodiment of the present application;

[0030] Figure 4 It is the second schematic diagram of the light guide member of the embodiment of the present application;

[0031] Figure 5 It is a schematic diagram of the light-shielding member of the embodiment of the present application.

[0032] Reference Signs: 100 - outer shell assembly; 110 - light guide member; 111 - light guide column; 1110 - recessed groove; 1111 - avoidance opening; 1112 - light incident side; 1113 - light exit side; 1114 - key portion; 112 - connecting portion; 120 - outer shell; 121 - outer surface; 122 - inner surface; 130 - light-shielding member; 131 - light-transmitting portion; 132 - positioning hole; 200 - key assembly; 210 - PCB; 220 - illuminated key; 221 - LED lamp; 222 - touch spring. Detailed Embodiments

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0034] Accordingly, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts fall within the scope of protection of the present application.

[0035] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not require further definition and explanation in subsequent drawings.

[0036] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0037] In addition, terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0038] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0039] The following will describe in detail some embodiments of the present application with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0040] Reference Figure 1 and Figure 2, an embodiment of the present application discloses a keypad mechanism. The keypad mechanism includes a housing assembly 100 and a key assembly 200 located within the housing assembly 100. The key assembly 200 includes a PCB 210 and a lighted key 220 disposed on the PCB 210. The lighted key 220 specifically includes an LED lamp 221 and a touch spring 222 sleeved outside the LED lamp 221. The housing assembly 100 has corresponding functional areas for users to press, thereby triggering the lighted key 220 to implement the corresponding functions.

[0041] Combined with Figures 1 to 4 , the housing assembly 100 includes a light guide member 110 and a housing 120 injection-molded outside the light guide member 110. The light-emitting side 1113 of the light guide member 110 has a key portion 1114; the housing 120 is made of an opaque material and is injection-molded to cover the outside of the light guide member 110. The light-incident side 1112 of the light guide member 110 is exposed on the inner surface 122 of the housing 120. The lighted key 220 is directly opposite to the light-incident side 1112 of the light guide member 110, and the side of the key portion 1114 facing away from the light-incident side 1112 of the light guide member 110 is exposed on the outer surface 121 of the housing 120.

[0042] In this way, in this embodiment, the housing 120 is made of an opaque material and is injection-molded to cover the outside of the light guide member 110, so that the light guide member 110 and the housing 120 form a single component, and there is no gap between the light guide member 110 and the housing 120. In this way, the light entering from the light-incident side 1112 of the light guide member 110 can cause the key portion 1114 exposed on the outer surface 121 of the housing 120 to light up and display, without color difference and light leakage, ensuring the color display effect, display color, and brightness effect, etc. The appearance of the product is consistent, and the user's visual experience is better.

[0043] The key portion 1114 can be formed in a convex shape on the light-emitting side 1113 of the light guide member 110. In this way, when the housing 120 is injection-molded, the opaque material can wrap the key portion 1114 protruding relative to the light-emitting side 1113 for display when the LED lamp is lit. Of course, in some embodiments, it is also feasible to paste a light-shielding film with the same color as the housing 120 on a partial area of the light-emitting side 1113 and provide through holes with the same shape and size as the key portion 1114 on the light-shielding film.

[0044] Optionally, combined with Figure 1 and Figure 5, the housing assembly 100 further includes a light-shielding member 130 disposed on the light-incident side 1112 of the light guide member 110. The light-shielding member 130 has a light-transmitting portion 131 corresponding to the button portion 1114. In this way, the light-shielding member 130 can block a partial area of the light-incident side 1112 of the light guide member 110, reducing the light-incident area of the light guide member 110, so that light can only enter from the area of the light-incident side 1112 of the light guide member 110 corresponding to the button portion 1114, thereby improving the display brightness uniformity of the button portion 1114.

[0045] Specifically, in combination with Figures 3 to 5 , the shape of the light-transmitting portion 131 is adapted to the shape of the button portion 1114. In this way, the light emitted by the illuminated button 220 enters the light guide member 110 through the light-transmitting portion 131. Since the shape of the light-transmitting portion 131 is adapted to the shape of the button portion 1114, the shape of the light spot entering from the light-incident side 1112 of the light guide member 110 and reaching the light-emitting side 1113 is the same as that of the button portion 1114, thereby further improving the display brightness uniformity of the button portion 1114.

[0046] Specifically, the light-shielding member 130 can specifically be a light-shielding film made of an opaque material (such as PET) with light-absorbing properties. Through-holes are formed in the light-shielding film by processes such as stamping. These through-holes constitute the light-transmitting portion 131 having the same shape as the button portion 1114, that is, the light-transmitting portion 131 is a through-hole penetrating the light-shielding member 130. In this way, after the illuminated button 220 is lit, the light passes through the light-transmitting portion 131 to form a light spot adapted to the shape of the required illuminated function icon, so that the function icon lights up and is displayed on the outer surface 121 of the housing 120.

[0047] Of course, in some embodiments, the light-transmitting portion 131 can also be made of a transparent or semi-transparent material, as long as the light-shielding member 130 cannot transmit light through other parts except the light-transmitting portion 131.

[0048] In combination with Figure 3 and Figure 4, the light guide member 110 is injection molded from a transparent or translucent plastic material to ensure overall uniform light transmission. Usually, there are multiple light-emitting buttons 220 to control the activation or deactivation of different functions. Therefore, the light guide member 110 specifically includes a plurality of light guide columns 111 and a connecting portion 112. The circumferential side surfaces of the light guide columns 111 are integrally connected to the connecting portion 112. An incident light side 1112 and an emergent light side 1113 are respectively formed at both ends of each light guide column 111. Correspondingly, the light-shielding member 130 has a plurality of light-transmitting portions 131, and the light-transmitting portions 131 correspond to the light guide columns 111 one by one. The shape of each light-transmitting portion 131 is adapted to the shape of a corresponding button portion 1114. In this way, a plurality of button portions 1114 can correspondingly appear on the outer surface 121 of the housing 120. The shapes of different button portions 1114 are different, and correspondingly, the shapes of the light-transmitting portions 131 corresponding to different button portions 1114 are also different. This facilitates the user to distinguish different light-emitting buttons 220, so as to select to activate or deactivate different functions.

[0049] Of course, it can be understood that the shape of the light-transmitting portion 131 can also be different from the shape and size of the button portion 1114, as long as it is ensured that the size of the light-transmitting portion 131 is larger than the size of the entire button portion 1114, so as to ensure that the light-shielding member 130 does not block the light passing through the button portion 1114.

[0050] Optionally, the light guide columns 111 are arranged at intervals in a straight line. The number of light-shielding films is one, that is, the light-shielding member 130 includes a light-shielding film. The light-shielding film extends along the arrangement direction of the light guide columns 111, and the light-shielding film is attached to the incident light side 1112 of each light guide column 111, which is convenient for positioning between the light-shielding film and the light guide member 110, ensuring that each light-transmitting portion 131 and a corresponding button portion 1114 are kept facing each other, so as to ensure the uniform lighting effect of the button portion 1114.

[0051] A recessed groove 1110 is provided at one end of the light guide column 111 facing the inside of the housing 120. The bottom of each recessed groove 1110 serves as the incident light side 1112 of a light guide column 111. The recessed groove 1110 penetrates the circumferential side surface of the light guide column 111 to form an avoidance opening 1111 on the circumferential side surface of the light guide column 111. The light-shielding film passes through the avoidance opening 1111. In this way, the light-shielding film is embedded in the light guide member 110, which is beneficial to the positioning between the light guide member 110 and the light-shielding film. The overall thickness of the light-shielding film and the light guide member 110 is the thickness of the light guide member 110, improving the structural compactness.

[0052] It should be noted that when manufacturing the housing assembly 100, the light guide column 111 needs to be fabricated by injection molding or other methods first. Then, a light-shielding film is pasted on the light-incident side 1112 of the light guide member 110. After that, the entire light guide member 110 is placed into the mold for injecting the housing 120 for secondary injection molding, so that the housing 120 wraps the light guide member 110, thereby forming a single component of the housing assembly 100. Then, the housing assembly 100 is installed with the button assembly 200. After lighting the illuminating button 220, the icons to be displayed can be lit and shown through the button portion 1114 on the light guide column 111. The displayed effect is as Figure 2 shown.

[0053] Combined Figure 5 with Figure 5 , in order to ensure the positioning of the light guide member 110 in the injection mold, the light-shielding film is provided with positioning holes 132. The positioning holes 132 are used for positioning and mating with the injection mold to ensure the accuracy of the position of the light guide member 110 in the entire housing 120, which is beneficial for aligning each illuminating button 220 with the corresponding light guide column 111 and the light-transmitting portion 131.

[0054] Of course, in some embodiments, a light-shielding film can also be pasted on the light-incident side 1112 corresponding to each light guide column 111, that is, the light-shielding member 130 includes a plurality of light-shielding films, and each light-shielding film has a light-shielding portion accordingly.

[0055] In addition, the embodiment of the present application also discloses a household appliance, which can be a range hood, a cooker, a dishwasher, etc. The household appliance includes the above-mentioned button panel mechanism, so it also has corresponding structures and beneficial effects, which will not be specifically described here.

[0056] In summary, the embodiment of the present application discloses a housing assembly 100, a button panel mechanism, and a household appliance. The housing 120 is injection-molded with an opaque material to wrap outside the light guide member 110, so that the light guide member 110 and the housing 120 form a single component, and there is no gap between the light guide member 110 and the housing 120. In this way, the light entering from the light-incident side 1112 of the light guide member 110 can make the button portion 1114 shown on the outer surface 121 of the housing 120 light up and be displayed, without color difference and light leakage, ensuring the color display effect, display color, and bright effect, etc. The product appearance has good consistency and better visual experience for users.

[0057] 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 recorded in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A housing assembly, characterized in that: include: A light guide (110), wherein the light output side (1113) of the light guide (110) has a button portion (1114); The housing (120) is coated with an opaque material by injection molding on the outside of the light guide (110); the light incident side (1112) of the light guide (110) is visible on the inner surface (122) of the housing (120); and the side of the button portion (1114) facing away from the light incident side (1112) of the light guide (110) is visible on the outer surface (121) of the housing (120).

2. The housing assembly according to claim 1, characterized in that The button portion (1114) is formed in a convex shape on the light-emitting side (1113).

3. The housing assembly according to claim 1, wherein: The light guide (110) comprises a plurality of light guide columns (111) and a connecting portion (112); the peripheral side surfaces of each light guide column (111) are integrally connected to the connecting portion (112); and both ends of each light guide column (111) respectively form a light input side (1112) and a light output side (1113).

4. The housing assembly according to claim 3, characterized in that: One end of the light guide column (111) facing the interior of the housing (120) has a recessed groove (1110), and the bottom of each recessed groove (1110) serves as a light incident side (1112) of the light guide column (111).

5. The housing assembly according to claim 1, wherein: The housing assembly further comprises a light shielding member (130) arranged on the light incident side (1112) of the light guide member (110), wherein the light shielding member (130) has a light-transmitting portion (131) corresponding to the button portion (1114).

6. The housing assembly according to claim 5, characterized in that The shape of the light-transmitting portion (131) is adapted to the shape of the button portion (1114); and / or, The light-transmitting portion (131) comprises a light-transmitting hole penetrating the light-shielding member (130).

7. The housing assembly according to claim 5, characterized in that The light guide (110) comprises a plurality of light guide columns (111) and a connecting portion (112), the peripheral side surfaces of each light guide column (111) being integrally connected to the connecting portion (112), and both ends of each light guide column (111) respectively forming a light entrance side (1112) and a light exit side (1113); The light shielding member (130) has a plurality of light-transmitting portions (131), and the light-transmitting portions (131) correspond one-to-one to the light-guiding columns (111).

8. The housing assembly according to claim 7, characterized in that: The light shielding member (130) comprises a light shielding film, the light shielding film extends along the arrangement direction of each of the light guide pillars (111), and the light shielding film is attached to the light incident side (1112) of each of the light guide pillars (111); and / or, The light guide column (111) has a recessed groove (1110) at one end facing the interior of the housing (120); the bottom of each recessed groove (1110) serves as a light incident side (1112) of the light guide column (111); the recessed groove (1110) penetrates the peripheral side surface of the light guide column (111) to form an avoidance opening (1111) on the peripheral side surface of the light guide column (111); and the light shielding member (130) passes through the avoidance opening (1111); and / or, The light shielding member (130) is provided with a positioning hole (132), and the positioning hole (132) is used for positioning and cooperating with the injection mold.

9. A keypad mechanism, characterized in that: Comprising the housing assembly according to any one of claims 1 to 8 and a key assembly (200) located in the housing (120); The key assembly (200) comprises a PCB (210) and a light-emitting key (220) disposed on the PCB (210); the light-emitting key (220) is directly opposite to the light incident side (1112) of the light guide (110).

10. A household appliance, characterized in that: Includes the keypad mechanism described in claim 9.

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