Luminous cavity structure of nixie tube

Abstract

The utility model relates to the field of nixie tube light emitting, in particular to a nixie tube light emitting cavity structure which comprises a nixie tube assembly, a plurality of light emitting cavities are formed in one side of the nixie tube assembly, a light reflecting cavity is formed in one end of each light emitting cavity, a containing cavity is formed in one end of each light reflecting cavity, a light source is arranged in each containing cavity, and a pop-up structure is arranged on the inner wall of each containing cavity. The pop-up structure is used for enabling the light source to obtain an outward thrust, and a positioning structure is arranged on one side of the pop-up structure; compared with other digital light emitting cavity structures, the digital light emitting cavity has the advantages that the depth of the placement cavities is optimized, the phenomenon of color change of white light is avoided, the depths of all the placement cavities are consistent, the light intensity of each light emitting cavity can be ensured to be consistent, and the first reflecting surface is adopted, so that the light emitting efficiency is improved. The light irradiation intensity of the corner position of the light-emitting cavity is effectively improved, and the phenomenon that light in a local area is not uniform is avoided.

Description

Technical Field

[0001] This utility model relates to the field of digital tube light emission, specifically to a light emission cavity structure for a digital tube. Background Technology

[0002] The display position of the digital tube is composed of multiple elongated cavities forming the number 8, to display the 10 numbers from 1 to 0. For aesthetic reasons, both ends of each elongated cavity are protruding cones, and the length of the elongated cavity is larger than the size of the reflective cavity. Therefore, the cone-shaped positions at both ends of the elongated cavity often cannot receive direct light, and only some scattered light shines on them, resulting in a weaker light intensity compared to other positions. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a light-emitting cavity structure for a digital tube, which solves the technical problem of uneven light intensity in elongated cavities in existing technologies.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A light-emitting cavity structure for a digital tube includes a digital tube assembly. A plurality of light-emitting cavities are formed on one side of the digital tube assembly. A reflective cavity is formed at one end of each light-emitting cavity, and a mounting cavity is formed at one end of the reflective cavity. A light source is disposed inside the mounting cavity. A pop-out structure is provided on the inner wall of the mounting cavity. The pop-out structure provides an outward thrust to the light source. A positioning structure is provided on one side of the pop-out structure. A limiting groove is formed on the side wall of the light source. The positioning structure is used to fix the light source inside the mounting cavity through the limiting groove. A reflection structure is provided inside the reflective cavity to improve the overall display brightness of the light-emitting cavity.

[0006] Furthermore, the depth of the placement cavity is 0.5 mm.

[0007] Furthermore, the pop-out structure includes an elastic element disposed on the inner wall of the mounting cavity. One end of the elastic element is fixedly connected to the digital tube assembly. The side wall of the light source is provided with a pop-out groove. When the light source is inside the mounting cavity, the elastic element provides an outward pushing force to the light source through the pop-out groove.

[0008] Furthermore, the positioning structure includes a first limiting member, which is disposed on the inner wall of the mounting cavity. One end of the first limiting member is fixedly connected to the digital tube assembly. The first limiting member and the limiting groove are arranged in a one-to-one correspondence. When the side wall of the first limiting member and the limiting groove are in contact, the first limiting member is used to limit the movement of the light source.

[0009] Furthermore, the positioning structure includes a second limiting member, which is rotatably connected to the digital tube assembly. A torsion spring is provided at the connection position between the second limiting member and the digital tube assembly. The torsion spring is used to provide a torque to the second limiting member. One end of the second limiting member extends out of the interior of the digital tube assembly. When the light source is inside the mounting cavity, the other end of the second limiting member is in contact with the side wall of the limiting groove to limit the movement of the light source.

[0010] Furthermore, the reflective structure includes a first reflective surface, on both sides of which reflective cavities are formed, and the first reflective surface is used to reflect the light from the light source.

[0011] Furthermore, the reflective structure includes a second reflective surface, which is arc-shaped and is used to uniformly reflect the scattered light from the light source.

[0012] Compared with the prior art, this utility model provides a light-emitting cavity structure for a digital tube, which has the following beneficial effects:

[0013] Compared with other digital light emission cavity structures, this utility model optimizes the depth of the placement cavity, avoids the phenomenon of white light color change, makes all placement cavities of the same depth, can ensure that the light intensity of each light emission cavity is consistent, and adopts a first reflective surface to effectively improve the light illumination intensity at the corners of the light emission cavity and avoid the phenomenon of uneven light in local areas. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0015] Figure 1 This is one of the overall structural schematic diagrams of the light-emitting cavity structure of a digital tube according to this utility model;

[0016] Figure 2 This is the second schematic diagram of the overall structure of the light-emitting cavity of a digital tube according to this utility model;

[0017] Figure 3 This is the third schematic diagram of the overall structure of the light-emitting cavity structure of a digital tube according to this utility model;

[0018] Figure 4 This is a cross-sectional schematic diagram of the digital tube assembly of this utility model;

[0019] Figure 5 for Figure 4 A schematic diagram at point C in the middle;

[0020] Figure 6This is a schematic diagram of the structure of the first limiting member of this utility model;

[0021] Figure 7 This is a schematic diagram of the structure of the second limiting member of this utility model;

[0022] Figure 8 A schematic diagram of illumination for a common light-emitting cavity structure;

[0023] Figure 9 This is a schematic diagram of the illumination of the first embodiment of the present invention;

[0024] Figure 10 This is a schematic diagram of the illumination of the third embodiment of the present invention.

[0025] 1. Digital tube assembly; 2. Light-emitting cavity; 3. Reflecting cavity; 4. Mounting cavity; 5. Light source; 6. First limiting component; 7. Limiting groove; 8. Elastic component; 9. Pop-out groove; 10. Second limiting component; 11. Torsion spring; 12. Connecting cavity; 13. First reflective surface; 14. Second reflective surface. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. This will allow for a full understanding and implementation of how this application uses technical means to solve technical problems and achieve technical effects.

[0027] Digital tube displays often exhibit a characteristic where the decimal point window is smaller than the figure-eight window. When designing the light-emitting cavity of a digital tube's plastic casing, cavities are typically incorporated to avoid the positions of the illuminated bytes and decimal point. However, the depth of these cavities lacks a unified design standard, which can affect light refraction within the chip and consequently impact light emission consistency. Therefore, if… Figure 1-3 As shown, the first embodiment of this utility model proposes a light-emitting cavity structure for a digital tube, including a digital tube assembly 1. A plurality of light-emitting cavities 2 are formed on one side of the digital tube assembly 1. A reflective cavity 3 is formed at one end of each light-emitting cavity 2, and a mounting cavity 4 is formed at one end of each reflective cavity 3. A light source 5 is disposed inside the mounting cavity 4. Specifically, the common depth of the mounting cavity 4 is 3.1 mm. However, when the light source 5 is installed inside the mounting cavity 4, due to the excessive depth of the mounting cavity 4, some light reflection causes a change in the color of the white light emitted by the light source 5. Therefore, in this utility model, the depth of the mounting cavity 4 is 0.5 mm. Specifically, in this utility model, all mounting cavities 4 have a depth of 0.5 mm, such as... Figure 8 As shown, this can effectively reduce the reflection of light, which causes the color of the white light emitted by light source 5 to change.

[0028] The inner wall of the mounting cavity 4 is provided with a pop-out structure, which is used to give the light source 5 an outward thrust; specifically, such as Figure 4 As shown, since the light source 5 is small in size, it may be difficult to remove after being installed in the mounting cavity 4. Therefore, the pop-out structure includes an elastic element 8, which is disposed on the inner wall of the mounting cavity 4. One end of the elastic element 8 is fixedly connected to the digital tube assembly 1. The side wall of the light source 5 is provided with a pop-out groove 9. When the light source 5 is inside the mounting cavity 4, the elastic element 8 provides an outward pushing force to the light source 5 through the pop-out groove 9. Specifically, as the light source 5 gradually moves into the mounting cavity 4, one end of the elastic element 8 gradually fits against the inner wall of the pop-out groove 9, and the pop-out groove 9 gradually compresses the elastic force of the elastic element 8, so that the light source 5 obtains an outward pushing force. Therefore, the elastic element 8 is made of metal and has a certain degree of elasticity.

[0029] A positioning structure is provided on one side of the pop-up structure, such as... Figure 4-6 As shown, a limiting groove 7 is formed on the side wall of the light source 5. The positioning structure is used to fix the light source 5 inside the mounting cavity 4 through the limiting groove 7. Specifically, since the common method of fixing the light source 5 and the mounting cavity 4 is to embed the light source 5 inside the mounting cavity 4, such as... Figure 5 As shown, the light source 5 is then fixed inside the mounting cavity 4 using screws. However, multiple light sources 5 often need to be installed on a single digital tube assembly 1. Installing and fixing them one by one with screws would waste a lot of manpower. Therefore, the positioning structure includes a first limiting member 6, which is disposed on the inner wall of the mounting cavity 4. One end of the first limiting member 6 is fixedly connected to the digital tube assembly 1. The first limiting member 6 and the limiting groove 7 are set one-to-one. When the side wall of the first limiting member 6 is in contact with the limiting groove 7, the first limiting member 6 is used to limit the movement of the light source 5. Specifically, as shown... Figure 6 As shown, the material of the first limiting member 6 is elastic and can be either a plastic or metal part. When the first limiting member 6 restricts the movement of the light source 5, it does so by increasing the friction between the first limiting member 6 and the limiting groove 7, so as to ensure that the light source 5 can be removed when needed for replacement and other operations.

[0030] In addition, because the connection between the reflective cavity 3 and the mounting cavity 4 is stepped, such as Figure 4 and Figure 8 As shown, some of the light from the light source 5 may not be directly transmitted to the light-emitting cavity 2. Therefore, a connecting cavity 12 is provided at the connection position between the reflective cavity 3 and the mounting cavity 4. The connecting cavity 12 is an inclined surface, which can significantly improve the light utilization rate of the light source 5.

[0031] The interior of the reflective cavity 3 is equipped with a reflective structure, which is used to improve the overall display brightness of the light-emitting cavity 2; specifically, such as Figure 3As shown, since the light-emitting cavity 2 is the display end of this light-emitting cavity structure, its shape is not a regular rectangle for aesthetic reasons, and its ends are more elongated. The reflector cavity 3 is a smaller rectangle. Therefore, the light from the light source 5 may not be able to directly illuminate positions A and B, but only be reflected through the sidewall of the reflector cavity 3. This results in weaker light intensity at positions A and B compared to other positions. Figure 8 As shown, this means the light intensity is uneven, therefore, as Figure 9 As shown, the reflective structure includes a first reflective surface 13, with reflective cavities 3 located on both sides of the first reflective surface 13. The first reflective surface 13 is used to reflect the light from the light source 5. In this embodiment, the surface of the first reflective surface 13 is a mirror, which can effectively improve the intensity of light reflection, and the angle range of the first reflective surface 13 is between 7 and 12 degrees.

[0032] Compared with other digital light emission cavity structures, this utility model optimizes the depth of the placement cavity 4, avoids the phenomenon of white light color change, makes the depth of all placement cavities 4 consistent, can ensure that the light intensity of each light emission cavity 2 is consistent, and adopts the first reflective surface 13 to effectively improve the light illumination intensity at the corner positions of the light emission cavity 2, and avoids the phenomenon of uneven light in local areas.

[0033] The second embodiment of this utility model takes into account that because the light source 5 is small in size, if the position of the light source 5 is limited by the cooperation of the first limiting member 6 and the limiting groove 7, it will be difficult to remove the light source 5. Therefore, further optimization of the positioning structure is proposed, such as... Figure 7 As shown, the positioning structure includes a second limiting member 10, which is rotatably connected to the digital tube assembly 1. A torsion spring 11 is provided at the connection position between the second limiting member 10 and the digital tube assembly 1. The torsion spring 11 is used to provide a torque to the second limiting member 10. One end of the second limiting member 10 extends out of the interior of the digital tube assembly 1. When the light source 5 is inside the mounting cavity 4, the other end of the second limiting member 10 is in contact with the side wall of the limiting groove 7 to limit the movement of the light source 5. Specifically, when the light source 5 moves into the interior of the mounting cavity 4, the second limiting member 10... Under the torque of the torsion spring 11, the end of the second limiting member 10 near the limiting groove 7 is made to fit against the side wall of the limiting groove 7. At this time, the friction between the second limiting member 10 and the limiting groove 7 prevents the light source 5 from coming loose. When it is necessary to remove the light source 5, the user only needs to press the end of the second limiting member 10 away from the limiting groove 7 to overcome the torque of the torsion spring 11, contact the fit between the second limiting member 10 and the limiting groove 7, and then remove the light source 5. This avoids the phenomenon that the light source 5 is too small to be easily removed.

[0034] The third embodiment of this utility model takes into account that when the first reflective surface 13 reflects the scattered light from the light source 5, since the surface of the first reflective surface 13 is flat, some scattered light may undergo multiple reflections through the two first reflective surfaces 13, making it difficult to control the landing point and resulting in uneven light intensity at different positions of the light-emitting cavity 2. Therefore, the reflection structure is optimized, such as... Figure 10 As shown, the reflective structure includes a second reflective surface 14, which is arc-shaped. The second reflective surface 14 is used to uniformly reflect the scattered light from the light source 5. Specifically, in order to reduce the number of reflections of the scattered light, the surface of the second reflective surface 14 is set to be arc-shaped, so that most of the scattered light falls at positions A and B, ensuring that the light intensity at the position of the light-emitting cavity 2 is uniform.

[0035] The above embodiments provide a detailed description of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A light emitting cavity structure of a nixie tube, characterized by, The utility model provides a digital tube assembly (1) one side of including digital tube assembly (1) is equipped with a plurality of light emitting cavity (2), the one end of light emitting cavity (2) is equipped with the reflection cavity (3), the one end of reflection cavity (3) is equipped with the accommodation cavity (4), the inside of accommodation cavity (4) is equipped with light source (5), the inner wall of accommodation cavity (4) is equipped with the ejection structure, the ejection structure is used for making light source (5) obtain an outward thrust, the one side of ejection structure is equipped with the positioning structure, the side wall of light source (5) is equipped with the limiting slot (7), the positioning structure is used for fixing light source (5) in the inside of accommodation cavity (4) through limiting slot (7), the inside of reflection cavity (3) is equipped with the reflection structure, the reflection structure is used for improving the overall display brightness of light emitting cavity (2).

2. The light emitting cavity structure of claim 1, wherein, The depth of the accommodation cavity (4) is 0.5mm.

3. The light emitting cavity structure of claim 1, wherein, The ejection structure includes an elastic member (8) arranged on the inner wall of the accommodation cavity (4), one end of the elastic member (8) is fixedly connected with the digital tube assembly (1), a side wall of the light source (5) is provided with an ejection slot (9), when the light source (5) is in the accommodation cavity (4), the elastic member (8) provides the light source (5) with an outward thrust through the ejection slot (9).

4. The light emitting cavity structure of claim 1, wherein, The positioning structure includes a first limiting member (6) arranged on the inner wall of the accommodation cavity (4), one end of the first limiting member (6) is fixedly connected with the digital tube assembly (1), the first limiting member (6) and the limiting slot (7) are arranged one by one, when the side wall of the first limiting member (6) is attached to the limiting slot (7), the first limiting member (6) is used to limit the movement of the light source (5).

5. The light emitting cavity structure of claim 1, wherein, The positioning structure includes a second limiting member (10) rotationally connected with the digital tube assembly (1), a torsion spring (11) is arranged at the connecting position of the second limiting member (10) and the digital tube assembly (1), the torsion spring (11) is used to provide the second limiting member (10) with a torsion, one end of the second limiting member (10) extends into the inside of the digital tube assembly (1), when the light source (5) is in the accommodation cavity (4), the other end of the second limiting member (10) is attached to the side wall of the limiting slot (7) to limit the movement of the light source (5).

6. The light emitting cavity structure of claim 1, wherein, The reflection structure includes a first reflection surface (13) arranged at both sides of the reflection cavity (3), the first reflection surface (13) is used to reflect the light of the light source (5).

7. The light emitting cavity structure of claim 1, wherein, The reflection structure includes a second reflection surface (14) in the form of an arc surface, the second reflection surface (14) is used to uniformly reflect the scattered light of the light source (5).

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