Light guide part, shading assembly, indication panel and electrical equipment

Abstract

The utility model relates to a light guide piece, a shading assembly, an indication panel and electrical equipment, the light guide piece comprises a light guide column, the light guide column comprises a first light guide part and a second light guide part which are sequentially arranged in the axial direction of the light guide column, the first light guide part is used for being arranged corresponding to a light-emitting piece, and the cross section size of the first light guide part is larger than that of the second light guide part. According to the light guide part provided by the invention, the cross section size of the first light guide part is larger than that of the second light guide part, so that the end face of the first light guide part can fully cover the light emitting area of the light emitting part, light escape caused by too small cross section is reduced, and the incidence amount of light in the first light guide part is improved. When a light beam enters the second light guide part from the first light guide part, the cross section size is reduced, and the light beam is limited in a smaller cross section area, so that the luminous flux in unit area can be improved, and the brightness of light guided out from the second light guide part is improved; as the cross section size of the second light guide part is small, the requirements for attractiveness and size of the indicator lamp on the panel can be met.

Description

Technical Field

[0001] This application relates to the field of electronic technology, and in particular to a light guide, a light shielding assembly, an indicator panel, and an electrical device. Background Technology

[0002] In electrical equipment, light guides made of light-transmitting materials are often used to transmit light signals generated by light-emitting components on the circuit board to the indicator panel, so as to form one or more light-emitting indicator lights on the panel, so that customers can understand the working status of the electrical equipment by referring to the indicator light information.

[0003] To improve the aesthetics of the panel and reduce the area occupied by the indicator lights, the cross-sectional size of the light guide needs to be controlled within a suitable range. However, analysis of existing indicator panels reveals that when the light guide is a conventional cylindrical or prismatic shape, light scattering and leakage occur inside the indicator panel during the light guiding process, resulting in low brightness of the indicator lights and thus unclear indication status. Utility Model Content

[0004] This application provides a light guide, a light shielding component, an indicator panel, and an electrical device to solve the technical problem in the prior art where the indicator light has low brightness, resulting in unclear indication status.

[0005] In a first aspect, this application provides a light guide, comprising:

[0006] A light guide post includes a first light guide portion and a second light guide portion arranged sequentially along its axial direction. The first light guide portion is used to correspond to the light-emitting element, and the cross-sectional dimension of the first light guide portion is larger than that of the second light guide portion.

[0007] Optionally, the cross-sectional shape of the first light guide portion is the same as that of the second light guide portion, and the first light guide portion and the second light guide portion are coaxially arranged.

[0008] Optionally, the end of the first light guide portion away from the second light guide portion is provided with a light guide boss protruding from its end, and the light guide boss is provided with a slope along its circumference.

[0009] Optionally, there are multiple light guide pillars, and the connecting surfaces of the first light guide portion and the second light guide portion of the multiple light guide pillars are located on the same plane. The light guide component also includes a connecting body connected to the multiple light guide pillars.

[0010] Optionally, the connecting body includes a connecting part, which is connected to the light guide post at an angle.

[0011] Optionally, the connecting body also includes a mounting part, and the light guide column is connected to the mounting part at an angle;

[0012] And / or, the connecting part and the mounting part are connected at an angle.

[0013] Secondly, this application provides a light-shielding component, including the light guide provided in the first aspect of this application, and also includes a light-shielding component. The light-shielding component includes a cavity that is matched with the light guide post, and the cavity has an opening that is correspondingly provided with the light-emitting component.

[0014] Optionally, there may be multiple cavities, with a partition between adjacent cavities.

[0015] Thirdly, this application provides an indicator panel, including the light-shielding component provided in the second aspect of this application, and also including a circuit board and a panel. The circuit board is provided with a light-emitting element, and a light guide is sandwiched between the light-shielding element and the panel. The panel has an observation hole corresponding to the second light guide.

[0016] Optionally, the second light guide is embedded inside the observation hole.

[0017] Optionally, there are multiple light-emitting elements, multiple light guides and multiple observation holes, with multiple light-emitting elements corresponding to multiple first light guides and multiple observation holes corresponding to multiple second light guides.

[0018] Fourthly, this application provides an electrical device including the indicator panel provided in the third aspect of this application.

[0019] The technical solutions provided in this application have the following advantages compared with the prior art:

[0020] The light guide provided in this application includes a first light guide portion and a second light guide portion arranged sequentially along its axial direction. The cross-sectional size of the first light guide portion is larger than that of the second light guide portion, and the first light guide portion is used to correspond to the light-emitting element. Because the cross-sectional size of the first light guide portion is larger, it can more fully cover the light-emitting area of ​​the light-emitting element, comprehensively transmit the light from the light-emitting element, reduce light escape, and thus improve the brightness of the light source emitted from the second light guide portion. At the same time, because the cross-sectional size of the second light guide portion is smaller, when the second light guide portion is embedded in the panel, the aesthetics and size requirements of the indicator lights on the panel can be taken into account.

[0021] The light-shielding component, indicator panel, and electrical device provided in this application embodiment include the aforementioned light guide. The light-emitting area of ​​the light-emitting component can be fully covered by the end face of the first light guide with a larger cross-sectional size, reducing light escape caused by an excessively small cross-section and increasing the brightness of the light guided by the light guide column. Therefore, it naturally possesses the technical effects of the aforementioned light guide. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0025] Figure 1 Schematic diagram of the structure of the light guide provided in the embodiments of this application Figure 1 ;

[0026] Figure 2 A schematic diagram of the structure of the light guide column provided in the embodiments of this application. Figure 1 ;

[0027] Figure 3 Provided for the embodiments of this application Figure 1 A top view of the light guide component in the image;

[0028] Figure 4 Schematic diagram of the structure of the light guide provided in the embodiments of this application Figure 2 ;

[0029] Figure 5 Provided for the embodiments of this application Figure 5 A top view of the light guide component in the image;

[0030] Figure 6 A schematic diagram of the structure of the light guide column provided in the embodiments of this application. Figure 2 ;

[0031] Figure 7 Provided for the embodiments of this application Figure 5 Side view of the light guide component in the image;

[0032] Figure 8 Schematic diagram of the structure of the indicator panel provided in the embodiments of this application Figure 1 ;

[0033] Figure 9 An exploded view of the indicator panel provided in the embodiments of this application;

[0034] Figure 10 Schematic diagram of the structure of the light-shielding member provided in the embodiments of this application Figure 1 ;

[0035] Figure 11Provided for the embodiments of this application Figure 10 A top view of the light-shielding component in the middle;

[0036] Figure 12 Provided for the embodiments of this application Figure 8 A cross-sectional view of the indicator panel in the image;

[0037] Figure 13 Provided for the embodiments of this application Figure 12 Enlarged detail of section A;

[0038] Figure 14 Schematic diagram of the structure of the indicator panel provided in the embodiments of this application Figure 2 ;

[0039] Figure 15 Schematic diagram of the structure of the light-shielding member provided in the embodiments of this application Figure 2 ;

[0040] Figure 16 Provided for the embodiments of this application Figure 14 A cross-sectional view of the central indicator panel.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Light guide component; 11. Light guide post; 111. First light guide section; 112. Second light guide section; 113. Light guide boss; 1131. Bevel; 1132. Incident surface; 12. Connecting body; 121. First connecting part; 122. Second connecting part; 123. Third connecting part; 124. Fourth connecting part; 125. Mounting part;

[0043] 2. Light-shielding component; 21. Cavity; 211. Opening; 22. Dividing part; 23. Positioning part; 24. First fixing part;

[0044] 3. Circuit board; 31. Light-emitting component; 32. Substrate;

[0045] 4. Panel; 41. Observation hole; 42. Housing; 43. Second fixing part. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0048] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0049] To address the technical problem of low brightness in existing indicator lights, leading to unclear indication, this application provides a light guide 1, a light-shielding assembly, an indicator panel, and an electrical device. The light guide 1 includes a first light guide portion 111 and a second light guide portion 112 arranged sequentially along its axial direction. The cross-sectional dimension of the first light guide portion 111 is larger than that of the second light guide portion 112, and the first light guide portion 111 is configured to correspond to the light-emitting element 31. Due to the larger cross-sectional dimension of the first light guide portion 111, it can more fully cover the light-emitting area of ​​the light-emitting element 31, comprehensively transmit the light from the light-emitting element 31, reduce light escape, and thus improve the brightness of the light source emitted from the second light guide portion 112. At the same time, because the cross-sectional dimension of the second light guide portion 112 is smaller, when the second light guide portion 112 is embedded in the panel 4, the aesthetics and size requirements of the indicator lights on the panel 4 can be considered.

[0050] Please see Figures 1 to 16 The first aspect of this application provides a light guide 1, including a light guide post 11. The light guide post 11 includes a first light guide portion 111 and a second light guide portion 112 arranged sequentially along its axial direction, such as... Figure 1 , Figure 2 , Figure 4and Figure 6 As shown, after the light enters the first light guide 111, it enters the second light guide 112 and is finally led out from the end of the second light guide 112 away from the first light guide 111. The light entering the light guide column 11 makes the entire light guide column 11 light up, thus realizing the display of the indicator light signal.

[0051] Please see Figure 12 , Figure 13 and Figure 16 The first light guide 111 is configured to correspond to the light-emitting element 31, and the cross-sectional size of the first light guide 111 is larger than that of the second light guide 112. This allows the end face of the first light guide 111 to fully cover the light-emitting area of ​​the light-emitting element 31, reducing light escape caused by an excessively small cross-section and increasing the incident light amount in the first light guide 111. When the light beam enters the second light guide 112 from the first light guide 111, the cross-sectional size of the light guide column 11 decreases. Since the light beam is confined to a smaller cross-sectional area, the luminous flux per unit area is increased, thereby increasing the brightness of the light emitted from the second light guide 112.

[0052] The second light guide 112 can be embedded in the panel 4 to form an indicator light. Since the cross-sectional size of the second light guide 112 is small, it can meet the aesthetic and size requirements of the indicator light on the panel 4.

[0053] It should be noted that the first light guide 111 and the second light guide 112 can be connected by an intermediate section to avoid abrupt changes in the optical path due to abrupt changes in cross-section between the first light guide 111 and the second light guide 112.

[0054] The first light guide 111 and the second light guide 112 can be integrally formed using light guide material, thereby avoiding the formation of a separating surface between the first light guide 111 and the second light guide 112. This prevents light from being reflected or refracted at the separating surface, thus avoiding affecting the transmission of the light beam inside the light guide post 11.

[0055] In some embodiments of this application, please refer to Figure 1 , Figure 2 , Figure 4 and Figure 6The cross-sectional shape of the first light guide 111 is the same as that of the second light guide 112, and the first light guide 111 and the second light guide 112 are coaxially arranged. This allows most of the light to be transmitted along the axial direction of the light guide post 11, avoiding light deflection. At the same time, the first light guide 111 and the second light guide 112 have the same cross-sectional shape. This means that the cross-section of the first light guide 111 can be obtained by compressing the cross-section of the second light guide 112 by a certain proportion with the axis as the base point. This coaxial design ensures that the light energy is proportionally and uniformly contracted during the transmission of light energy from the first light guide 111 to the second light guide 112, avoiding local energy concentration caused by asymmetrical diameter reduction, thereby ensuring the uniformity of the light emitted from the second light guide 112.

[0056] It should be noted that the first light guide 111 and the second light guide 112 are preferably columnar structures. The axis of the light guide column 11 is the line connecting the centers of all cross sections. The cross-sectional shape of the first light guide 111 and the second light guide 112 can be circular, elliptical, polygonal, or elongated, etc., and can be designed according to the appearance requirements of the indicator light.

[0057] In some embodiments of this application, please refer to Figure 1 , Figure 2 , Figure 4 and Figure 6 The cross-sectional shape of the first light guide 111 and the second light guide 112 is a parallelogram with rounded corners, which can make the indicator light appear as an inclined strip. Compared with the conventional cylindrical indicator light, the design is more stylish.

[0058] In some embodiments of this application, please refer to Figure 2 and Figure 6 The first light guide part 111 has a light guide boss 113 protruding from its end at the end away from the second light guide part 112. The light guide boss 113 has a slope 1131 along its circumference. When the light guide part 1 is produced by injection molding, the slope 1131 can be used as a demolding surface to facilitate demolding of the end of the light guide post 11.

[0059] In some embodiments of this application, please refer to Figure 2 and Figure 6 The end face of the light guide boss 113 away from the first light guide part 111 is the incident surface 1132. The inclined surface 1131 is arranged along the circumference of the incident surface 1132. The inclined surface 1131 changes the edge of the incident surface 1132 from a right angle to an inclined structure. The inclined surface 1131 can guide the light from the light guide boss 113 to enter the first light guide part 111 more smoothly, thereby reducing light loss.

[0060] It should be noted that the incident surface 1132 is preferably a plane opposite to the light-emitting element 31, and the shape of the incident surface 1132 can be circular, elliptical, or polygonal (e.g., ...). Figure 2 and Figure 3 (as shown) or a combination of multiple graphics (such as) Figure 5 and Figure 6 As shown, as long as the shape of the incident surface 1132 can match the light-emitting area of ​​the light-emitting element 31, the purpose of this application can be achieved.

[0061] In existing indicator panels, multiple independent indicator lights are usually required to indicate different information. If multiple independent light guide columns 11 are assembled one by one, it will result in a large number of parts and a complicated assembly process.

[0062] To address the aforementioned issues, please refer to some embodiments of this application. Figure 1 and Figure 4 There are multiple light guide pillars 11. The connecting surfaces of the first light guide part 111 and the second light guide part 112 in the multiple light guide pillars 11 are located on the same plane, which facilitates the coplanar setting of multiple connecting surfaces, so that multiple connecting surfaces can be fitted and assembled with the same surface (such as the inner side of panel 4).

[0063] The light guide 1 also includes a connecting body 12 that connects to multiple light guide pillars 11, which can connect multiple light guide pillars 11 into a whole, making it easy to assemble and disassemble multiple light guide pillars 11 as a whole, and can significantly reduce the number of parts and assembly steps in the indicator panel.

[0064] In some embodiments of this application, please refer to Figure 1 , Figure 3 , Figure 4 and Figure 5 The connecting body 12 includes a connecting part, which is connected to the light guide post 11 to realize the fixed connection between the light guide post 11 and the connecting body 12, thereby realizing the relative position positioning between the multiple light guide posts 11 and the connecting body 12.

[0065] It should be noted that the connecting part can be used to connect the light guide post 11 to the connecting body 12, or to connect the light guide posts 11 to each other. As long as the connection and relative position fixation between multiple light guide posts 11 and the connecting body 12 can be achieved, the purpose of this application can be achieved. The connecting part is preferably connected to one or both sides of the circumferential direction of the light guide post 11 (the circumferential direction of the light guide post 11 is perpendicular to the axial direction) to avoid affecting the transmission of light in the axial direction of the light guide post 11.

[0066] In the above embodiments, if the connecting part and the light guide post 11 are made by an integral molding process, the connecting part is also a light guide material. If light is transmitted from the light guide post 11 to the connecting part, the total amount of light emitted from the second light guide part 112 will be reduced, and the brightness of the light source emitted from the second light guide part 112 will be reduced.

[0067] To address the aforementioned issues, please refer to some embodiments of this application. Figure 3 and Figure 5 The connecting part is connected to the light guide post 11 at an angle. When the light is transmitted along the axial direction of the light guide post 11, the light is difficult to enter the connecting part due to the deflection angle between the connecting part and the axial direction (i.e. the direction of light transmission) of the light guide post 11. This can prevent the light from being transmitted from the light guide post 11 to the connecting part, thereby ensuring the total amount of light and the brightness of the light source exported from the second light guide part 112.

[0068] In some embodiments of this application, please refer to Figure 3 The connecting part is a first connecting part 121, which extends along the length of the light guide 1. Multiple first connecting parts 121 are spaced apart from multiple light guide pillars 11, such that both ends of the first connecting part 121 are connected to the outer peripheral surfaces of two light guide pillars 11 respectively. The connection angle between the light guide pillar 11 and the first connecting part 121 is α. When the light rays travel along a path perpendicular to the direction of the light guide 1... Figure 3 When the light is transmitted in the direction of the paper, it is difficult to deflect it at a certain angle (such as α) within the paper and enter the first connecting part 121, which can prevent the light from being transmitted from the light guide post 11 to the first connecting part 121.

[0069] In other embodiments of this application, please refer to Figure 5 The connecting part includes a second connecting part 122, and one end of each second connecting part 122 is correspondingly connected to a light guide post 11, and the connection angle between the light guide post 11 and the second connecting part 122 is β. When the light is perpendicular to the light guide post 11, the light guide post 11 is connected to the second connecting part 122 at one end. Figure 5 When the light is transmitted in the direction of the paper, it is difficult to deflect it at a certain angle (such as β) within the paper and enter the second connecting part 122, which can prevent the light from being transmitted from the light guide post 11 to the second connecting part 122.

[0070] It should be noted that when the light guide 1 is set horizontally, the connecting part and the light guide post 11 can be connected at an angle in the horizontal plane or in the vertical plane. As long as there is a connection angle between the connecting part and the axial direction of the light guide post 11, thereby avoiding the transmission of light between the light guide post 11 and the connecting part, the purpose of this application can be achieved.

[0071] In some embodiments of this application, please refer to Figure 1 , Figure 3 , Figure 4 and Figure 5 The connecting body 12 also includes a mounting part 125, which can be used to assemble the light guide 1 with other components. In order to avoid the mounting part 125 affecting the spacing between the multiple light guide pillars 11, thereby causing the indicator light display area on the panel 4 to be too large, it is preferable to concentrate the multiple light guide pillars 11 in the middle of the light guide 1, while the mounting part 125 is disposed at both ends of the light guide 1.

[0072] In the above embodiments, if the mounting part 125 and the connecting part and / or the light guide post 11 are made by an integral molding process, the mounting part 125 is also a light guide material. If light is transmitted from the light guide post 11 and / or the connecting part to the mounting part 125, the total amount of light emitted from the light guide post 11 will be reduced, and the brightness of the light source emitted by the second light guide part 112 will be reduced.

[0073] To address the aforementioned issues, please refer to some embodiments of this application. Figure 3 and Figure 5 The light guide post 11 is connected to the mounting part 125 at an angle. Since the mounting part 125 is connected to the circumferential side of the light guide post 11 located at both ends of the light guide member 1, when the light is transmitted along the axial direction of the light guide post 11, since there is a deflection angle θ between the extension direction of the mounting part 125 and the light guide post 11, the light is difficult to deflect at a certain angle (such as θ) in the plane of the paper to enter the mounting part 125, thus preventing the light from being transmitted from the light guide post 11 to the mounting part 125.

[0074] In some embodiments of this application, please refer to Figure 5 and Figure 7 The connecting part and the mounting part 125 are connected at an angle, which can prevent the light in the light guide column 11 from being transmitted to the mounting part 125 through the connecting part, or prevent the light in the light guide column 11 from being transmitted to the connecting part through the mounting part 125.

[0075] As a specific embodiment of this application, please refer to Figure 5 and Figure 7 There is no direct connection between two adjacent light guide pillars 11, which can prevent light from crossing between the two light guide pillars 11 through the first connecting part 121. Any one of the light guide pillars 11 is connected to the fourth connecting part 124 in the connecting body 12 via the second connecting part 122, or directly connected to the mounting part 125 at an angle. The mounting part 125 and the fourth connecting part 124 are connected via a third connecting part 123, with both ends of the third connecting part 123 connected to the mounting part 125 and the fourth connecting part 124 at an angle of γ. Figure 7 As shown, the light from the multiple light guide columns 11 in the middle of the light guide member 1 can be prevented from being transmitted to the mounting part 125 through the second connecting part 122, the fourth connecting part 124 and the third connecting part 123. The light from the light guide columns 11 at both ends can also be prevented from being transmitted to the third connecting part 123, the fourth connecting part 124 and the second connecting part 122 through the mounting part 125, thereby reducing the scattering of light.

[0076] It should be noted that when the light guide 1 is set horizontally, the connecting angle γ can be the angle between the mounting part 125 and the third connecting part 123 in the vertical plane, or it can be the angle between the mounting part 125 and the third connecting part 123 in the horizontal plane. As long as the transmission of light between the mounting part 125 and the connecting part can be avoided, the purpose of this application can be achieved.

[0077] In the above embodiment, if the light is deflected relative to the axis of the light guide 11 when it is transmitted in the light guide 11, some light will leak out from the outer peripheral surface of the light guide 11, thereby reducing the total amount of light and the brightness of the light source guided by the second light guide 112.

[0078] To resolve the above issues, please refer to Figures 1 to 16 The second aspect of this application provides a light-shielding component, including the light guide 1 described in the above embodiments, and a light-shielding component 2. The light-shielding component 2 includes a cavity 21 that matches the light guide post 11. The cavity 21 has an opening 211 that corresponds to the light-emitting element 31, allowing light from the light-emitting element 31 to enter the incident surface 1132 of the light guide protrusion 113 from the opening 211 and then enter the first light guide portion 111. Since the inner wall of the cavity 21 is in contact with the outer peripheral surface of the light guide post 11, the outer peripheral surface of the light guide post 11 can be made into an opaque reflective surface. Even if the light is deflected relative to the axis of the light guide post 11 during transmission within the light guide post 11, it can be reflected back into the interior of the light guide post 11 through this reflective surface, preventing light leakage from the outer peripheral surface of the light guide post 11 and avoiding light leakage from the light guide post 11. This ensures the total amount of light and the brightness of the light source emanating from the second light guide portion 112. Figure 12 , Figure 13 and Figure 16 As shown.

[0079] It should be noted that the light-shielding component 2 can be made of any opaque material, such as plastic or rubber, as long as it can prevent light from leaking out from the outer periphery of the light guide column 11, the purpose of this application can be achieved.

[0080] In some preferred embodiments of this application, the light-shielding member 2 is made of rubber. Since the rubber material has the ability to deform, it can achieve a gapless fit with the light guide post 11 through elastic deformation, thereby preventing light from leaking into the gap between the outer peripheral surface of the light guide post 11 and the inner wall surface of the cavity 21.

[0081] In some embodiments of this application, please refer to Figure 1 , Figure 4 , Figure 8 , Figure 9 , Figure 12 , Figure 14 and Figure 16When the light guide 1 is provided with multiple light guide pillars 11, the number of cavities 21 is also multiple, which can be used to correspond one-to-one with multiple light guide pillars 11 to ensure the total amount of light and the brightness of the light source emanating from each light guide pillar 11. A partition 22 is provided between two adjacent cavities 21 to avoid mutual interference between two adjacent light guide pillars 11, resulting in light leakage from the light guide pillars 11 and thus unclear indicator light information.

[0082] In some embodiments of this application, please refer to Figure 8 , Figure 9 and Figure 12 When two adjacent light guide pillars 11 are connected by the first connecting part 121, the light shield 2 is provided with a groove that matches the first connecting part 121, and the groove is connected to multiple cavities 21 to realize the fitting arrangement between the light shield 2 and the light guide 1.

[0083] In other embodiments of this application, please refer to Figure 14 and Figure 16 When there is no direct connection between two adjacent light guide pillars 11, multiple connecting parts are connected to one side of the light guide pillar 11 or the mounting part 125. The light shield 2 is provided with a clearance part that matches the multiple connecting parts (i.e., the second connecting part 122 and the third connecting part 123). This allows some connecting parts to be located on the outside of the light shield 2. While realizing the fitting arrangement between the light shield 2 and the light guide 1, the light shield 2 only needs to shield the multiple light guide pillars 11. While ensuring the light shielding effect of the light shield 2, the width of the light shield 2 is reduced, which is beneficial to reduce the material usage of the light shield 2 and reduce the manufacturing cost of the light shield 2.

[0084] In some embodiments of this application, please refer to Figures 9 to 12 as well as Figures 15 to 16 The light-shielding member 2 is provided with a first fixing part 24 corresponding to the mounting part 125, which can be used to achieve a relatively fixed connection between the light guide member 1 and the light-shielding member 2. Accordingly, the first fixing part 24 is provided at both ends of the light-shielding member 2, and can be used to achieve a corresponding connection with the mounting parts 125 at both ends of the light guide member 1.

[0085] Please see Figures 1 to 16The third aspect of this application provides an indicator panel, including the light-shielding component described in the above embodiments, and further including a circuit board 3 and a panel 4. The circuit board 3 is provided with a light-emitting element 31, and the light-emitting element 31 is disposed opposite to the opening 211 of the cavity 21, so that light enters the first light guide 111 from the incident surface 1132. The light guide 1 is sandwiched between the light-shielding component 2 and the panel 4. The panel 4 has an observation hole 41 corresponding to the second light guide 112. When light is transmitted from the first light guide 111 to the second light guide 112, the observation hole 41 can observe the end of the second light guide 112 near the panel 4, thereby confirming the light emission status of the light guide column 11 and forming an indicator signal of the indicator light.

[0086] In some embodiments of this application, in order to achieve the assembly and positioning between the circuit board 3 and the light-shielding member 2, a positioning part 23 matching the circuit board 3 is provided on the light-shielding member 2. The circuit board 3 can cooperate with the positioning part 23 by abutting or embedding, etc. Figure 8 , Figure 10 , Figure 11 , Figure 14 and Figure 15 As shown, this achieves the assembly and positioning between the circuit board 3 and the light shield 2, aligning the light-emitting element 31 on the circuit board 3 with the opening 211 of the cavity 21 in the light shield 2, thereby realizing the light transmission from the light-emitting element 31 to the opening 211 and the light guide column 11.

[0087] In some embodiments of this application, please refer to Figure 12 , Figure 13 and Figure 16 The second light guide 112 is embedded inside the observation hole 41. It can be used to assemble and position the second light guide 112 on the panel 4, and the outer peripheral surface of the second light guide 112 can be shielded by the shell 42 material of the inner wall of the observation hole 41 to prevent light from leaking out from the outer peripheral surface of the second light guide 112, thus ensuring the brightness of the light source displayed by the second light guide 112 on the panel 4.

[0088] At the same time, the connecting surfaces of the first light guide part 111 and the second light guide part 112 in the multiple light guide pillars 11 are all in contact with the inner surface of the panel 4, which can achieve a tight fit between the light guide 1 and the panel 4 and avoid light leakage.

[0089] In some embodiments of this application, please refer to Figure 12 , Figure 13 and Figure 16The number of light-emitting elements 31, light guide pillars 11, and observation holes 41 are all multiple. Multiple light-emitting elements 31 are arranged one-to-one with multiple first light guide parts 111, and multiple observation holes 41 are arranged one-to-one with multiple second light guide parts 112. Thus, the light emission status of multiple light-emitting elements 31 on the circuit board 3 can be transmitted to the panel 4 through multiple light guides 1. Even if the distance between two adjacent light guide pillars 11 is small, there will be no light leakage or light cross-cutting, which makes it easier for customers to understand the indicator light information in different working modes.

[0090] It should be noted that the light-emitting element 31 can be mounted or embedded on the substrate 32 of the circuit board 3. The partition 22 on the light-shielding element 2 can not only be used to separate two adjacent cavities 21, but also to divide multiple independent accommodating spaces on the light-shielding element 2. The accommodating spaces and their corresponding cavities 21 are connected through openings 211. The light-emitting element 31 extends into the accommodating space so that it can be positioned opposite to the incident surface 1132 at the opening 211.

[0091] When one of the light-emitting elements 31 (such as an LED bead) lights up, the light passes through the light guide post 11 and through the observation hole 41 to radiate outwards, making the light guide post 11 embedded on the panel 4 appear to be bright as a whole. Due to the presence of the partition 22, the light emitted from the light-emitting element 31 will not affect the light guide posts 11 adjacent to it on both sides.

[0092] In some embodiments of this application, please refer to Figure 9 The panel 4 is provided with a second fixing part 43, which is used to achieve a relatively fixed connection between the light-shielding part 2, the light guide part 1 and the panel 4, so as to prevent the light guide part 1 or the light-shielding part 2 from being displaced during use.

[0093] Please see Figures 1 to 16 The fourth aspect of this application provides an electrical device, including the indicator panel described in the above embodiments, which can indicate different working states of the electrical device by the light emission of the light guide column 11 on the indicator panel.

[0094] It should be noted that the electrical equipment can be air conditioners, refrigerators, washing machines, etc. Using the indicator panel of this application can avoid light leakage and light crosstalk on the indicator panel, and can improve the accuracy of the indicator information and the appearance of the electrical equipment.

[0095] Please see Figures 1 to 16 In some embodiments of this application, the assembly process of the above-mentioned indicator panel is as follows:

[0096] Step 1: Insert the second light guide part 112 of the light guide 1 into the plurality of observation holes 41 of the panel 4 accordingly;

[0097] Step 2: Fit the multiple cavities 21 of the light shield 2 with the multiple first light guides 111, and connect the first fixing part 24, the mounting part 125 and the second fixing part 43 with screws.

[0098] Step 3: Assemble the circuit board 3 with the light shield 2 through the positioning part 23, so that the two adjacent light-emitting parts 31 are separated by the partition part 22.

[0099] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0100] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0101] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A light guide (1), characterized in that, include: The light guide post (11) includes a first light guide part (111) and a second light guide part (112) arranged sequentially along its axial direction. The first light guide part (111) is arranged corresponding to the light-emitting element (31), and the cross-sectional dimension of the first light guide part (111) is larger than the cross-sectional dimension of the second light guide part (112).

2. The light guide (1) according to claim 1, characterized in that, The cross-sectional shape of the first light guide (111) is the same as that of the second light guide (112), and the first light guide (111) and the second light guide (112) are coaxially arranged.

3. The light guide (1) according to claim 1, characterized in that, The first light guide part (111) has a light guide boss (113) protruding from its end at the end away from the second light guide part (112), and the light guide boss (113) has an inclined surface (1131) along its circumference.

4. The light guide (1) according to any one of claims 1 to 3, characterized in that, The number of light guide pillars (11) is multiple, and the connecting surfaces of the first light guide part (111) and the second light guide part (112) in the multiple light guide pillars (11) are located on the same plane. The light guide component (1) also includes a connecting body (12) connected to the multiple light guide pillars (11).

5. The light guide (1) according to claim 4, characterized in that, The connecting body (12) includes a connecting part, which is angularly connected to the light guide post (11).

6. The light guide (1) according to claim 5, characterized in that, The connecting body (12) also includes a mounting part (125), and the light guide post (11) is connected to the mounting part (125) at an angle; And / or, the connecting part is connected to the mounting part (125) at an angle.

7. A light-shielding component, characterized in that, The light guide (1) as described in any one of claims 1 to 6 is included, and a light shield (2) is also included. The light shield (2) includes a cavity (21) that is matched with the light guide post (11), and the cavity (21) has an opening (211) that is correspondingly provided with the light emitting element (31).

8. The light-shielding component according to claim 7, characterized in that, The number of cavities (21) is multiple, and a partition (22) is provided between two adjacent cavities (21).

9. An indicator panel, characterized in that, The light-shielding component as described in claim 7 or 8 is further comprising a circuit board (3) and a panel (4), wherein the circuit board (3) is provided with a light-emitting element (31), the light guide (1) is sandwiched between the light-shielding element (2) and the panel (4), and the panel (4) has an observation hole (41) corresponding to the second light guide (112).

10. The indicator panel according to claim 9, characterized in that, The second light guide (112) is embedded inside the observation hole (41).

11. The indicator panel according to claim 9 or 10, characterized in that, The number of light-emitting elements (31), light guide columns (11), and observation holes (41) are all multiple. The multiple light-emitting elements (31) are arranged in a one-to-one correspondence with the multiple first light guides (111), and the multiple observation holes (41) are arranged in a one-to-one correspondence with the multiple second light guides (112).

12. An electrical appliance, characterized in that, Includes the indicator panel as described in any one of claims 9 to 11.

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