Waterproof and anti-crosstalk fixing structure for indicating lamp

Abstract

The embodiment of the utility model provides a waterproof and anti-crosstalk fixing structure for an indicator lamp. The waterproof and anti-crosstalk fixing structure comprises a lamp panel, a light guide part and a shading and sealing integrated piece which are sequentially arranged from bottom to top. The lamp panel comprises a plurality of light-emitting devices, a light-emitting device control circuit board and a lamp panel fixing structure. The shading and sealing integrated piece comprises a body and a shading cover arranged on the back face of the body, the body is provided with a plurality of second light holes and mounting holes, and the shading cover comprises a plurality of cover bodies. The lamp panel and the shading and sealing integrated piece are simultaneously pressed on the cover plate through the lamp panel fixing structure and the mounting hole; the cover plate comprises a plurality of first light holes; the light guide part comprises a plurality of light guide pieces, the upper ends of the light guide pieces penetrate through the cover body, the first light hole and the second light hole, and the lower ends of the light guide pieces are adjacent to the light emitting device; the light guide piece comprises a light guide body and a press-fit part, and the cover body covers the press-fit part and the light-emitting device; and the lamp panel is hermetically connected with the cover plate through the light shield and the light guide piece. Meanwhile, the indicator lamp is waterproof and anti-optical crosstalk, the structure is simplified, the installation is convenient, and the cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of fixing display devices, and particularly relates to a fixing structure for an indicator light with waterproof and anti-light-leakage functions. Background Art

[0002] Currently, indicator lights are widely used in various household and industrial devices to facilitate users to observe the operating status of the devices and achieve functions such as interacting with the devices. The light guiding design of the light in the indicator light usually adopts integral injection molding, that is, the light emitted by the lamp beads is conducted to the outside of the device through a light guide column, which is convenient for users to observe.

[0003] The integral injection molding light guiding design has the following defects: the light emitted between adjacent lamp beads will affect each other, which will cause users to be unable to quickly and accurately understand the operating status of the machine during use or during maintenance and troubleshooting. Moreover, for use occasions with high waterproof requirements, additional waterproof solutions need to be designed separately, such as using an internal sealed waterproof gasket or using an externally attached transparent PC (polycarbonate) sheet, which has a large number of materials, high costs, and inconvenient installation. Summary of the Invention

[0004] In view of this, an embodiment of the present application provides a fixing structure for an indicator light with waterproof and anti-light-leakage functions to solve at least one problem in the background art.

[0005] In a first aspect, an embodiment of the present application provides a fixing structure for an indicator light with waterproof and anti-light-leakage functions, including a lamp board, a light guiding part, and a light shielding and sealing integrated part arranged in sequence from bottom to top;

[0006] The lamp board includes a plurality of light emitting devices, a light emitting device control circuit board, and a lamp board fixing structure. The plurality of light emitting devices are arranged on the light emitting device control circuit board and change their working states under the control of the light emitting device control circuit board;

[0007] The light shielding and sealing integrated part includes a main body and a light shielding cover arranged on the back of the main body. The main body is provided with a plurality of second light transmission holes and mounting holes, and the light shielding cover includes a plurality of cover bodies;

[0008] The lamp board and the light shielding and sealing integrated part are simultaneously fixed to the cover plate through the lamp board fixing structure and the mounting holes; the cover plate includes a plurality of first light transmission holes;

[0009] The light guiding part includes a plurality of light guiding members. The upper ends of the light guiding members pass through the cover bodies, the first light transmission holes, and the second light transmission holes, and the lower ends of the light guiding members are arranged adjacent to the light emitting devices; the light guiding members include a light guiding body and a pressing part, and the cover bodies cover the pressing part and the light emitting devices;

[0010] The light board and the cover plate are hermetically connected through the light-shielding cover and the light guide member.

[0011] Combined with the first aspect of the present application, in an alternative embodiment, the cover body includes a side wall and a cavity surrounded by the side wall. The top wall of the cavity is used to abut against the pressing portion, and the bottom end of the side wall is used to abut against the light board.

[0012] Combined with the first aspect of the present application, in an alternative embodiment, the body of the light-shielding and sealing integrated member and the light-shielding cover are integrally injection-molded.

[0013] Combined with the first aspect of the present application, in an alternative embodiment, the light guide member further includes a protective ring for the light-emitting device, which is arranged at the lower end of the light guide body and abuts against the light board, and the light-emitting device is accommodated in the protective ring for the light-emitting device.

[0014] Combined with the first aspect of the present application, in an alternative embodiment, the light guide body, the pressing portion and the protective ring for the light-emitting device are integrally injection-molded.

[0015] Combined with the first aspect of the present application, in an alternative embodiment, a nut post is press-connected to the back surface of the cover plate. The light board fixing structure includes a bolt through-hole. The mounting hole is sleeved on the nut post, and the nut post cooperates with a bolt passing through the bolt through-hole to press-connect the light board and the light-shielding and sealing integrated member to the cover plate at the same time.

[0016] Combined with the first aspect of the present application, in an alternative embodiment, the light-shielding cover is made of an elastic light-shielding material.

[0017] By adopting the light-shielding and sealing integrated member, only one structural member realizes the anti-light-leakage and waterproof functions of the indicator light at the same time, simplifies the structure, facilitates installation, and reduces costs. By providing a pressing portion 32 on the light guide member 30 and a light-shielding cover 24 on the back surface of the light-shielding and sealing integrated member 2, the light-shielding cover 24 covers the part below the pressing portion 32 of the light guide member 30 and the light-emitting device 43. The pressing portion 32 is pressed against the top wall of the cavity of the light-shielding cover 24, and the light-shielding and sealing integrated member 2 and the light guide member 30 are simultaneously pressed against the cover plate 1 and the light board 4, thereby realizing anti-light-leakage and waterproof functions at the same time. While simplifying the structure, it ensures reliable installation and is ingeniously designed. The blind hole press riveting nut post 12 is used in cooperation with the screw 5 to press and fix the bottom plate, the light-shielding and sealing integrated member 2 and the cover plate. The blind hole press riveting nut post 12 can limit the screwing depth of the screw 5 cooperating with it, thereby effectively limiting the degree of extrusion of the sealing member body 21 and ensuring that the sealing effect can be maintained all the time, improving the stability of installation.

[0018] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Description of the Drawings

[0019] The accompanying drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0020] Figure 1 is an exploded view of the light - emitting diode waterproof and anti - crosstalk light - fixing structure provided by an embodiment of the present application Figure 1 ;

[0021] Figure 2 is an exploded view of the light - emitting diode waterproof and anti - crosstalk light - fixing structure provided by an embodiment of the present application Figure 2 ;

[0022] Figure 3 is an installation schematic diagram of the light - emitting diode waterproof and anti - crosstalk light - fixing structure provided by an embodiment of the present application Figure 1 ;

[0023] Figure 4 is a partial enlarged view of part A of the light - emitting diode waterproof and anti - crosstalk light - fixing structure provided by an embodiment of the present application;

[0024] Figure 5 is an installation schematic diagram of the light - emitting diode waterproof and anti - crosstalk light - fixing structure provided by an embodiment of the present application Figure 2 . Detailed implementation manners

[0025] To make the technical solutions and beneficial effects of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below by way of listing specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0027] It should be noted that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from another element, rather than to describe a specific order or sequence. The terms "comprising" and "having" and any variations thereof are intended to cover non - exclusive inclusion, without excluding the existence or addition of one or more other features.

[0028] An embodiment of the present application provides a fixing structure for an indicator light to prevent water ingress and light crosstalk. Please refer to Figures 1 to 5 , which includes: a lamp board 4, a light guide member 3, and a light-shielding and sealing integrated member 2 arranged in sequence from bottom to top. The lamp board 4, the light guide member 3, and the light-shielding and sealing integrated member 2 are simultaneously fixed to the cover plate 1. The cover plate 1 can be the main body of the housing or a fixing plate installed on the housing. The cover plate 1 includes a cover body 11, a first fixing structure 12, and a plurality of first light-transmitting holes 13. The first fixing structure 12 is arranged on the back surface of the cover body 11. The first fixing structure 12 can be a screw hole or a nut post, etc. Optionally, the nut post is a blind-hole press-fit nut post 12, which is press-fitted on the back surface of the cover plate 1. The blind-hole press-fit nut post 12 can effectively limit the screwing depth of the screw 5 cooperating with it, thereby effectively limiting the degree of extrusion of the sealing member body 21 and ensuring that the sealing effect can be maintained all the time.

[0029] The lamp board 4 includes a plurality of light-emitting devices 43, a light-emitting device control circuit board 41, and a lamp board fixing structure 42. Under the control of the control circuit board 41, the working state of the light-emitting device 43 is variable and is used to indicate different working states of the device where the indicator light is located. Optionally, the light-emitting device 43 includes an LED lamp bead, a digital tube, a liquid crystal display, etc. The change in the working state of the light-emitting device 43 includes on-off change, bright-dark change, and / or color change, etc. The lamp board fixing structure 42 is used to fix the lamp board 4 to the cover plate 1. Optionally, the lamp board fixing structure 42 includes a bolt through-hole or a connecting column, etc. A lamp board connector 44 is arranged on the lamp board 4 and is used for electrically connecting to the control circuit board 41 to supply power to it.

[0030] The light guide part 3 includes a plurality of light guide members 30. The light guide body 31 is columnar as a whole, with the lower end adjacent to the light-emitting device 43 and the upper end adjacent to the cover plate 1. The upper end of the light guide body 31 passes through the first light-transmitting hole 13 and the second light-transmitting hole 22 of the light-shielding and sealing integrated member 2, and is used to conduct the light emitted by the light-emitting device 43 inside the cover plate 1 to the outside of the cover plate 1 for the user to observe. The material of the light guide body 31 includes polymethyl methacrylate (PMMA), acrylic resin, polycarbonate, epoxy resin, glass, etc. The number and position of the light guide members 30 are set according to the number and position of the light-emitting devices 43. Figures 1 to 2 The situation where a plurality of light guide members 30 are arranged side by side is shown, and the first light-transmitting holes 13 all correspond to the light-emitting devices 43 one by one.

[0031] Each light guide member 30 includes a light guide body 31, a pressing portion 32, and a light-emitting device protective ring 33. The pressing portion 32 is flat and configured to abut against the light-shielding and sealing integrated member 2. The pressing portion 32 is disposed around the light guide body 31 in a direction perpendicular to the axis of the light guide body 31. The light-emitting device protective ring 33 is disposed at the lower end of the light guide body 31 and abuts against the lamp board 4, and the light-emitting device 43 is covered within the light-emitting device protective ring 33. The light-emitting device protective ring 33 is used to support the light guide body 31 to prevent it from contacting the light-emitting device 43 and thus crushing the light-emitting device 43. Optionally, the light guide body 31, the pressing portion 32, and the light-emitting device protective ring 33 are integrally injection-molded. Light diffusing agents and other light homogenizing materials can also be added to the light guide member 3, or a frosted effect can be laser-engraved on the inner top of the light-emitting device protective ring 33 to improve the light divergence ability, making the light uniform and the visual effect better.

[0032] The light-shielding and sealing integrated member 2 includes a main body 21, a second light-transmitting hole 22, a mounting hole 23, and a light-shielding cover 24. The main body 21 is sheet-shaped and disposed between the light guide member 3 and the cover plate 1. The main body 21 is provided with a plurality of second light-transmitting holes 22 and mounting holes 23. The light-shielding cover 24 is disposed on the back of the main body 21. The light-shielding cover 24 includes a plurality of cover bodies 20, and the pressing portion 32 and the light-emitting device 43 are received within the cover bodies 20. The cover bodies 20 are made of an elastic light-shielding material, such as black rubber, black foam, etc., to prevent the light between the light guide members 30 from interfering with each other. Optionally, the main body 21 and the light-shielding cover 24 are integrally injection-molded. The black opaque silicone rubber can effectively block the passage of light, thus avoiding the problem of light crosstalk between the light-emitting devices 43. The lamp board 4 is hermetically connected to the cover plate 1 through the light-shielding cover 24 and the light guide member 30, so that the cover plate 1 and the lamp board 4 achieve a waterproof and sealing effect. By using an elastic material for the light-shielding cover 24, it is convenient for the sealing connection between the lamp board 4 and the light-shielding and sealing integrated member 2.

[0033] As Figures 2 to 4 shown, each cover body 20 includes a side wall 241 and a cavity 242 surrounded by the side wall. The cavity 242 is used to receive the light guide member 30. The bottom end of the side wall 241 is used to abut against the upper surface of the lamp board 4. The cover body 20 covers the part of the light guide member 30 below the pressing portion 32 and the light-emitting device 43. The top wall of the cavity 242 is press-connected to the upper surface of the pressing portion 32 of the light guide member 30, thus simultaneously playing the role of preventing light crosstalk and waterproofing. As Figure 2 shown, the number and positions of the cover bodies 20 are set according to the number and positions of the light guide members 30. Figure 2 Illustrates a situation where a plurality of cover bodies 20 are arranged side by side. The second light-transmitting holes 22 and the cover bodies 20 both correspond to the light guide members 30 one by one. Optionally, an interference fit is used between the light guide member 30 and the second light-transmitting hole 22 to ensure that the light guide member 3 will not fall off after installation.

[0034] Optionally, the lamp board fixing structure 42 is correspondingly arranged with the first fixing structure 12 and the mounting hole 23 to facilitate the simultaneous fixing of the lamp board 4 and the light-shielding and sealing integrated part 2 to the cover plate 1, improving the fixing effect.

[0035] The installation process of the embodiment of the present application is as follows:

[0036] First, the light guide 31 is passed through the second light-transmitting hole 22 from one side of the light-shielding cover 24 of the light-shielding and sealing integrated part 2, and the part below the pressing part 32 of the light guide 31 is accommodated in the cover body 20, thereby installing the light guide 3 on the light-shielding and sealing integrated part 2. Then, the upper end of the light guide 31 is passed through the first light-transmitting hole 13 of the cover plate 1, and the mounting hole 23 of the light-shielding and sealing integrated part 2 is sleeved on the blind hole nut column 12 of the cover plate 1, thereby integrally installing the assembled light guide 3 and the light-shielding and sealing integrated part 2 on the cover plate 1. Finally, the bolt 5 is passed through the bolt through-hole 42 of the lamp board and the mounting hole 23 of the light-shielding and sealing integrated part 2 at the same time, and then the lamp board 4 and the light-shielding and sealing integrated part 2 are locked to the blind hole press riveting nut column 12 of the cover plate 1 together.

[0037] As Figures 4 to 5 shown, during the tightening process of the bolt 5, the lamp board 4 will simultaneously squeeze the light guide 3 and the light-shielding and sealing integrated part 2 towards the cover plate 1. The light-emitting device protective ring 33 and the bottom end of the cover body 20 are both in contact with the lamp board 4, the pressing part 32 is in press contact with the top wall of the cavity 242 of the cover body 20, and the upper surface of the light-shielding and sealing integrated part body 21 is in press contact with the cover plate body 1, forming a sealed waterproof structure. At the same time, the light-emitting device 43 and the light guide 30 are accommodated in the light-shielding cover 24, realizing the function of preventing light crosstalk.

[0038] By adopting the light-shielding and sealing integrated part, only one structural part simultaneously realizes the prevention of light crosstalk and waterproofing of the indicator light, simplifies the structure, facilitates installation, and reduces costs. By arranging the pressing part 32 on the light guide 30 and the light-shielding cover 24 on the back of the light-shielding and sealing integrated part 2, the light guide 30 and the light-emitting device 43 are accommodated in the cavity 242 of the light-shielding cover 24 and are mutually pressed with the light-shielding cover 24 at the same time, thereby sealingly connecting the lamp board 4, the light-shielding and sealing integrated part 2, the light guide part 3 and the cover plate 1, realizing the prevention of light crosstalk and waterproofing at the same time, simplifying the structure and ensuring reliable installation, with a clever design. The blind hole press riveting nut column 12 is used in cooperation with the screw 5 to press and fix the bottom plate, the light-shielding and sealing integrated part 2 and the cover plate 1. The blind hole press riveting nut column 12 can limit the screwing depth of the screw 5 cooperating with it, thereby effectively limiting the degree of extrusion of the sealing part body 21 and ensuring that the sealing effect can be maintained all the time, improving the stability of installation.

[0039] The relevant content of each unit in this embodiment can refer to the relevant content of the unit with the same reference numeral in any of the foregoing embodiments, and will not be elaborated here.

[0040] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0041] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. A waterproof and anti-light-crosstalk fixing structure for an indicator light, characterized in that: It includes a lamp panel, a light guide part and a light shielding sealing integrated part which are arranged in sequence from bottom to top; The light board includes a plurality of light emitting devices, a light emitting device control circuit board and a light board fixing structure, wherein the plurality of light emitting devices are arranged on the light emitting device control circuit board and change working states under the control of the light emitting device control circuit board; The light-shielding sealing integrated part comprises a main body and a light-shielding cover arranged on the back of the main body, the main body is provided with a plurality of second light-transmitting holes and mounting holes, and the light-shielding cover comprises a plurality of cover bodies; The lamp board and the light shielding sealing integrated part are simultaneously fixed to the cover plate through the lamp board fixing structure and the mounting hole; the cover plate includes a plurality of first light transmission holes; The light guide portion includes a plurality of light guide members, the upper ends of the light guide members pass through the cover body, the first light-transmitting hole and the second light-transmitting hole, and the lower ends of the light guide members are arranged adjacent to the light-emitting device; the light guide member includes a light guide body and a pressing part, and the cover body covers the pressing part and the light-emitting device; The lamp panel is sealed and connected to the cover plate through the light shield and the light guide.

2. The waterproof and anti-cross-light fixing structure of the indicator light according to claim 1 is characterized in that: The cover body comprises a side wall and a cavity surrounded by the side wall, the top wall of the cavity is used to abut against the pressing part, and the bottom end of the side wall is used to abut against the lamp board.

3. The waterproof and anti-light-crosstalk fixing structure of indicator light according to claim 1, characterized in that: The main body and the light shielding cover of the light shielding sealing integrated part are integrally injection molded.

4. The waterproof and anti-light-crosstalk fixing structure of indicator light according to claim 1, characterized in that: The light guide also includes a light emitting device protection ring, which is arranged at the lower end of the light guide body and abuts against the light board, and the light emitting device is accommodated in the light emitting device protection ring.

5. The waterproof and anti-cross-light fixing structure of the indicator light according to claim 4 is characterized in that: The light guide, the pressing portion and the light emitting device protection ring are integrally injection molded.

6. The waterproof and anti-light-crosstalk fixing structure of indicator light according to claim 1, characterized in that: A nut column is crimped on the back of the cover plate, the lamp board fixing structure includes a bolt through hole, the mounting hole is sleeved on the nut column, and the nut column cooperates with the bolt passing through the bolt through hole to crimp the lamp board and the light-shielding sealing integrated part to the cover plate at the same time.

7. The waterproof and anti-cross-light fixing structure of indicator light according to claim 1, characterized in that: The light shield is made of elastic light shielding material.

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