Light channeling prevention indicating structure
By designing light guides and light shields, the problems of signal light pin deformation and light interference were solved, enabling stable indication and accurate display of the signal light on the side wall of the housing, and extending the service life of the signal light.
Patent Information
- Application Number
- CN202422840312.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-21
AI Technical Summary
In existing technologies, when the circuit board and the housing are set at an angle, the pins of the indicator lights are prone to deformation or breakage, affecting the product's lifespan. Furthermore, the indicator light beams are prone to mutual interference, leading to inaccurate displays.
The light guide design includes a light guide column and a light shield. The indicator lights are set one-to-one with the light guide column. The light is conducted through the light guide column and reflected by the reflective surface to the side wall of the housing, which avoids the pin bending and prevents the light from affecting each other through the light shield.
This achieves a stable indication effect for the signal lights on the side wall of the housing, extends the service life of the signal lights, prevents pin deformation or breakage, and ensures the accuracy of light signal transmission and display effect.
Smart Images

Figure CN223540800U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic equipment technology, and in particular to an anti-light interference indicator structure. Background Technology
[0002] Electronic equipment refers to equipment composed of electronic components such as integrated circuits, transistors, and vacuum tubes, which uses electronic technology (including) software to function, including electronic computers and robots, numerical control or programmable control systems controlled by electronic computers.
[0003] Electronic devices typically include a housing and a circuit board inside the housing. Indicator lights are usually electrically connected to the circuit board, and the control or functional status of the electronic device can be understood by observing the light from these lights. In related technologies, the circuit board is usually horizontally positioned inside the housing, and the light from the indicator lights is typically guided out through the side wall of the housing. The circuit board and the side wall of the housing are often positioned at an angle. To guide the indicator lights to the side wall of the housing, the pins of the indicator lights are bent. Because the bent pins are relatively long, they are prone to deformation again during product use, and the pins may even break, which is detrimental to the product's lifespan. Utility Model Content
[0004] The purpose of this utility model is to provide an anti-light-flying indicator structure, so that when the circuit board and the side wall of the housing are set at an angle, the indicator light on the side wall of the housing can be used to indicate the signal light, and effectively extend the service life of the signal light in this scenario.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] A light-blocking indicator structure is provided, comprising:
[0007] The outer casing has a plurality of light-transmitting holes spaced apart along a first direction on its sidewalls;
[0008] A circuit board is disposed inside the housing and is set at an angle to the side wall of the housing. A plurality of indicator lights are spaced apart along a first direction on the circuit board, and the indicator lights are arranged one-to-one with the light-transmitting holes.
[0009] A light guide is disposed inside the housing. The light guide includes a plurality of light guide columns spaced apart along a first direction. Each light guide column is corresponding to a signal light. Each light guide column includes a first end face and a second end face arranged at an angle. The first end face is opposite to the corresponding signal light, and the second end face is opposite to the corresponding light-transmitting hole.
[0010] Optionally, the light guide column includes a first light guide portion and a second light guide portion connected to each other. The first light guide portion is provided with a reflective surface and a first end face, and the second light guide portion is provided with a second end face. The light from the signal lamp can pass through the first end face and be reflected by the reflective surface to the second end face.
[0011] Optionally, the second light guide is inserted into the corresponding light-transmitting hole.
[0012] Optionally, a first light-shielding member is provided between two adjacent first light guides.
[0013] Optionally, the side of the first light-shielding member facing the circuit board is attached to the circuit board.
[0014] Optionally, the projection of the first light guide portion along the first direction is located within the first light shield.
[0015] Optionally, it also includes a second light-shielding member, which has a plurality of light-shielding grooves that correspond one-to-one with the first light guide portion, and the first light guide portion is located in the corresponding light-shielding groove.
[0016] Optionally, the light guide further includes a limiting plate, the light guide post is disposed on the limiting plate, and the limiting plate is in contact with the side wall of the housing.
[0017] Optionally, the limiting plate has a through hole between two adjacent light guide posts.
[0018] Optionally, the projection of the signal light along a direction perpendicular to the first end face is located within the first end face.
[0019] The beneficial effects of this utility model are:
[0020] The anti-light interference indicator structure provided by this utility model involves installing the light guide component inside the housing during assembly, ensuring that the second end face of all the light guide pillars aligns with the light transmission holes. The circuit board is then installed inside the housing, aligning the first end face of all the light guide pillars with the corresponding signal lights, facilitating assembly. The light from the signal lights passes through the first end face and is transmitted to the second end face via the light guide pillars, allowing a stable signal light source to be observed outside the housing. This achieves the indicating effect of the signal lights on the side wall of the housing when the circuit board and the side wall of the housing are at an angle. Furthermore, the design of the light guide component eliminates the need to bend the lead of the signal lights, resulting in shorter lead lengths that effectively prevent lead deformation or breakage, thus extending the lifespan of the signal lights in this scenario. The light guide pillar design also prevents the light from interfering with each other, ensuring the accuracy of light signal transmission and achieving a more accurate display effect. Attached Figure Description
[0021] Figure 1This is an exploded view of the anti-light-spreading indicator structure provided by this utility model;
[0022] Figure 2 This is a schematic diagram of the structure of the light guide provided by this utility model;
[0023] Figure 3 This is a cross-sectional view of a partial structure of the anti-light-spreading indicator structure provided by this utility model;
[0024] Figure 4 This is a schematic diagram of another partial structure of the anti-light leakage indicator structure provided by this utility model.
[0025] In the picture:
[0026] 100. Outer shell; 110. Side wall; 111. Light passage hole;
[0027] 200. Circuit board; 210. Signal light;
[0028] 300, Light guide; 310, First light guide section; 311, First end face; 312, Reflective surface; 320, Second light guide section; 321, Second end face; 330, Limiting plate; 331, Through hole;
[0029] 400. First light-shielding component. Detailed Implementation
[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0033] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0034] Reference Figures 1 to 4 As shown, this embodiment provides an anti-light-spreading indicator structure, which includes a housing 100, a circuit board 200, and a light guide 300.
[0035] Specifically, the sidewall 110 of the housing 100 is provided with a plurality of light-transmitting holes 111 spaced apart along a first direction; the circuit board 200 and the light guide 300 are both disposed inside the housing 100. The circuit board 200 is angled to the sidewall 110 of the housing 100, and a plurality of indicator lights 210 are spaced apart along the first direction on the circuit board 200, with each indicator light 210 corresponding to one of the light-transmitting holes 111. The light guide 300 includes a plurality of light guide pillars spaced apart along the first direction, each light guide pillar corresponding to one of the indicator lights 210. Each light guide pillar includes a first end face 311 and a second end face 321 angled together, with the first end face 311 facing the corresponding indicator light 210 and the second end face 321 facing the corresponding light-transmitting hole 111. The first direction can be horizontal.
[0036] For example, when assembling the anti-light-spotting indicator structure, the light guide 300 is installed inside the housing 100 so that the second end face 321 of all the light guide pillars is aligned with the light-transmitting hole 111. The circuit board 200 is then installed inside the housing 100 so that the first end face 311 of all the light guide pillars is aligned with the corresponding signal lamp 210, facilitating assembly. The light from the signal lamp 210 passes through the first end face 311 and is transmitted to the second end face 321 via the light guide pillars, allowing a stable signal light source to be observed outside the housing 100. This achieves the indicating effect of the signal lamp 210 on the side wall 110 of the housing 100 when the circuit board 200 and the side wall 110 of the housing 100 are set at an angle. Furthermore, thanks to the design of the light guide 300, the signal light 210 no longer needs to bend its pins. The pins of the signal light 210 are shorter, effectively preventing pin deformation or breakage and extending the service life of the signal light 210 in this scenario. The design of the light guide column also prevents the light from each signal light 210 from affecting each other, ensuring the accuracy of light signal transmission and achieving a more accurate display effect.
[0037] For example, the light-transmitting hole 111 extends along a second direction, and the second end face 321 is disposed opposite to the corresponding light-transmitting hole 111 along the second direction. The second direction can be a horizontal direction. Optionally, the first direction and the second direction are perpendicular to each other.
[0038] For example, the first end face 311 and the corresponding signal light 210 are positioned opposite each other along a third direction. The third direction can be a vertical direction.
[0039] For example, the sidewall 110 of the housing 100 may be angled to the horizontal plane. Optionally, the sidewall 110 of the housing 100 may be perpendicular to the horizontal plane, the circuit board 200 may be horizontally placed, and the first end face 311 and the second end face 321 may be perpendicular to each other; wherein, the horizontal plane can be understood as the plane containing the first direction and the second direction, that is, the sidewall 110 of the housing 100 is vertically placed, and the indicator light 210 is horizontally placed. In this embodiment, the light from the indicator light 210 is transmitted from the first end face 311 to the second end face 321, realizing the effect that the horizontally placed indicator light 210 can display the status on the vertical sidewall 110 of the housing 100.
[0040] For example, the signal light 210 includes, but is not limited to, LED lights.
[0041] For example, the material of the light guide 300 includes, but is not limited to, acrylic resin, polycarbonate, epoxy resin or glass.
[0042] In this embodiment, reference is made to Figures 2 to 4As shown, the light guide column includes a first light guide portion 310 and a second light guide portion 320 connected to each other. The first light guide portion 310 is provided with a reflective surface 312 and a first end face 311, and the second light guide portion 320 is provided with a second end face 321. The light from the signal lamp 210 can pass through the first end face 311 and be reflected by the reflective surface 312 to the second end face 321, so as to stably transmit the light from the signal lamp 210 to the second end face 321 and effectively reduce light loss. It can be understood that the reflective surface 312 is located between the first end face 311 and the second end face 321 along the direction of light transmission, and the first end face 311 and the second end face 321 are respectively set at an angle to the reflective surface 312.
[0043] In one feasible implementation, the second light guide 320 is inserted into the corresponding light-transmitting hole 111, which provides a stable and reliable connection and facilitates the positioning and assembly between the light guide 300 and the housing 100.
[0044] In one feasible implementation, the light guide 300 further includes a limiting plate 330, with the light guide post disposed on the limiting plate 330. The limiting plate 330 is abutted against the side wall 110 of the housing 100 to prevent the light transmitted from each signal lamp 210 to the second light guide 320 from interfering with each other, facilitating identification, effectively ensuring the accuracy of light signal transmission, and achieving the positioning of the light guide 300 along the axial direction of the light-transmitting hole 111. Furthermore, compared to the prior art where the signal lamp 210 is passed through the light-transmitting hole 111, in this embodiment, the second light guide 320 is inserted into the corresponding light-transmitting hole 111, and the limiting plate 330 is abutted against the side wall 110 of the housing 100, making assembly more convenient.
[0045] In one feasible implementation, at least a portion of the second end face 321 has an area larger than the remaining second end faces 321. It is understood that the signal lights 210 emit different colors of light, and some signal lights 210 are weaker. The area of the corresponding second end face 321 is larger than the remaining second end faces 321 to ensure that the light transmitted from the weaker signal lights 210 to the second end face 321 is sufficiently clear and not interfered with by the light from the remaining second end faces 321.
[0046] For example, the light guide column can be integrally formed with the limiting plate 330 or it can be designed separately; this application does not limit this.
[0047] Specifically, the limiting plate 330 may have through holes 331 between two adjacent light guide pillars, which can reduce the mutual interference of light transmitted by each light guide pillar and save manufacturing raw materials.
[0048] In this embodiment, the anti-light-spotting indicator structure also includes a light-shielding component. The light-shielding component can separate and block the first light guide 310, effectively preventing the light transmitted from each signal lamp 210 to the first light guide 310 from escaping and affecting each other, ensuring the accuracy of light signal transmission, and achieving a more accurate display effect.
[0049] In some embodiments, refer to Figure 1 , Figure 3 and Figure 4 As shown, the light-shielding component includes a first light-shielding component 400. The first light-shielding component 400 is provided between two adjacent first light guide parts 310. The first light-shielding component 400 can effectively separate and block the two adjacent first light guide parts 310, effectively preventing the light from affecting each other between the two adjacent first light guide parts 310. It is stable and reliable, effectively ensuring the accuracy of light signal transmission and achieving a more accurate display effect.
[0050] In one feasible implementation, the side of the first light-shielding member 400 facing the circuit board 200 can be attached to the circuit board 200 to further prevent the light from affecting each other between two adjacent indicator lights 210, effectively ensuring the accuracy of light signal transmission and achieving a more accurate display effect.
[0051] In one feasible implementation, the projection of the first light guide 310 along the first direction is located within the first light shield 400, which more effectively prevents the light from affecting each other between two adjacent first light guides 310.
[0052] For example, the first light-shielding member 400 is configured as foam, which is soft and elastic, so as to facilitate the installation of the first light-shielding member 400 between two adjacent first light guide portions 310. In addition, the foam has an anti-static function, which can quickly dissipate the accumulated static charge and prevent product damage or electric shock injury to the human body caused by static electricity.
[0053] In other embodiments, the light-shielding component includes a second light-shielding component (not shown). The second light-shielding component has multiple light-shielding grooves corresponding one-to-one with the first light guides 310. The first light guides 310 are located within the corresponding light-shielding grooves, which can effectively separate and block each first light guide 310, further preventing the light transmitted from each signal lamp 210 to the first light guide 310 from interfering with each other, ensuring the accuracy of optical signal transmission, and facilitating assembly. It is understood that the second light-shielding component is completely located within the light-shielding grooves, that is, it does not protrude from the light-shielding grooves.
[0054] In one feasible implementation, the side of the second light-shielding member facing the circuit board 200 can be attached to the circuit board 200 to prevent the light from affecting each other between two adjacent indicator lights 210, effectively ensuring the accuracy of light signal transmission and achieving a more accurate display effect.
[0055] In this embodiment, reference is made to Figure 4 As shown, the projection of the signal light 210 along the direction perpendicular to the first end face 311 is located inside the first end face 311, so that as much light emitted by the signal light 210 is transmitted into the light guide column as possible, thereby making the signal light brighter visible outside the housing 100 and achieving a better display effect.
[0056] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A light-indicating structure for preventing light leakage, characterized in that, include: The outer casing (100) has a plurality of light-transmitting holes (111) spaced apart along a first direction on its sidewall (110); A circuit board (200) is disposed inside the housing (100) and is set at an angle to the side wall (110) of the housing (100). A plurality of signal lights (210) are spaced apart along a first direction on the circuit board (200), and the signal lights (210) are arranged one-to-one with the light-transmitting holes (111). A light guide (300) is disposed inside the housing (100). The light guide (300) includes a plurality of light guide columns spaced apart along a first direction. The light guide columns are arranged one-to-one with the signal lights (210). Each light guide column includes a first end face (311) and a second end face (321) arranged at an angle. The first end face (311) is arranged opposite to the corresponding signal light (210), and the second end face (321) is arranged opposite to the corresponding light-transmitting hole (111).
2. The anti-light-flying indicator structure according to claim 1, characterized in that, The light guide column includes a first light guide part (310) and a second light guide part (320) connected to each other. The first light guide part (310) is provided with a reflective surface (312) and a first end face (311). The second light guide part (320) is provided with a second end face (321). The light from the signal lamp (210) can pass through the first end face (311) and be reflected by the reflective surface (312) to the second end face (321).
3. The anti-light-flashover indicator structure according to claim 2, characterized in that, The second light guide (320) is inserted into the corresponding light-transmitting hole (111).
4. The anti-light-flying indicator structure according to claim 2, characterized in that, A first light-shielding member (400) is provided between two adjacent first light guides (310).
5. The anti-light-flying indicator structure according to claim 4, characterized in that, The first light-shielding member (400) is attached to the circuit board (200) on the side facing the circuit board (200).
6. The anti-light-flying indicator structure according to claim 4, characterized in that, The projection of the first light guide (310) along the first direction is located within the first light shield (400).
7. The anti-light-shifting indicator structure according to claim 2, characterized in that, It also includes a second light-shielding member, which has a plurality of light-shielding grooves that correspond one-to-one with the first light guide (310), and the first light guide (310) is located in the corresponding light-shielding groove.
8. The anti-light-flying indicator structure according to claim 2, characterized in that, The light guide (300) also includes a limiting plate (330), the light guide post is disposed on the limiting plate (330), and the limiting plate (330) is in contact with the side wall (110) of the outer shell (100).
9. The anti-light-flying indicator structure according to claim 8, characterized in that, The limiting plate (330) has a through hole (331) between two adjacent light guide pillars.
10. The anti-light-flying indicator structure according to any one of claims 1-9, characterized in that, The projection of the signal light (210) along the direction perpendicular to the first end face (311) is located within the first end face (311).