A structure of a nixie tube reflection cover

CN224841193UActive Publication Date: 2026-10-09ZHONGSHAN RED GREEN BLUE ELECTRIC CO LTD
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Patent Information

Application Number
CN202522183702.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-15
Publication Date
2026-10-09
Estimated Expiration
2035-10-15

AI Technical Summary

Technical Problem

[0003]数码管通过LED芯片发光显示数字或字符,反射盖的作用是将光线反射至显示面,提升亮度与均匀性,在数码管封装过程中,环氧树脂等胶体在高温烘烤时膨胀,对反射盖侧壁施加应力,导致反射盖发生形变,导致边角翘起或整体扭曲,目前防止反射盖形变的方法通常对盖体进行加厚,在反射盖表面预先设置拱形凸起,增加整体重量,而且占用更多内部空间,压缩数码管其他部件的布局空间,限制产品功能扩展或性能提升增加材料成本

Benefits of technology

本实用新型通过设置缓冲组件能够通过弹性变形来吸收和分散应力,避免了因应力集中而导致的部件断裂或过度变形,更好地适应环氧树脂等胶体在高温烘烤时的膨胀变化,提供更可靠的应力缓解效果,并且所使用的材料和制造工艺相对简单,成本较低,不会显著增加数码管的整体重量,有利于降低产品的生产成本。

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Abstract

The utility model relates to electronic equipment display technical field discloses a nixie tube reflection cover structure, including cover and buffer assembly, buffer assembly sets up in the inner wall of cover, buffer assembly includes the pre-arched groove of setting up in the inner wall of cover, the inner wall fixed with air bag of pre-arched groove, the inner wall slidingly connected with the backplate of pre-arched groove, the outer wall fixedly connected with the connecting column of backplate, the utility model discloses a buffer assembly can absorb and disperse stress through elastic deformation, avoids the component fracture or excessive deformation caused by stress concentration, better adaptation epoxy resin etc. the expansion change of colloid when high temperature baking, provides more reliable stress relief effect, and the material and manufacturing process used are relatively simple, and the cost is lower, will not increase the overall weight of nixie tube significantly, is favorable to reduce the production cost of product.
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Description

Technical Field

[0001] This utility model relates to the field of electronic device display technology, specifically a digital tube reflector cover structure. Background Technology

[0002] As a core component of electronic display devices, digital tubes are widely used in instruments, electronic displays, computer terminals and other fields. Their core function is to display digital, character and graphic information by combining the on and off states of light-emitting diodes. The reflector, as a key structural component of the digital tube, mainly reflects the light emitted by the LED chip to improve the display brightness. Its performance directly affects the display effect and reliability of the digital tube.

[0003] Digital tube displays numbers or characters by emitting light through LED chips. The reflector's function is to reflect the light onto the display surface, improving brightness and uniformity. During the digital tube packaging process, colloids such as epoxy resin expand when baked at high temperatures, applying stress to the sidewalls of the reflector and causing deformation, resulting in corners lifting or overall twisting. Currently, methods to prevent reflector deformation typically involve thickening the cover and pre-setting arched protrusions on the reflector surface, increasing overall weight and occupying more internal space. This compresses the layout space of other components in the digital tube, limits product function expansion or performance improvement, and increases material costs. Utility Model Content

[0004] The purpose of this invention is to provide a digital tube reflector cover structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a digital tube reflector cover structure, comprising a cover body and a buffer assembly, wherein the buffer assembly is disposed on the inner wall of the cover body, the buffer assembly includes a pre-arched groove formed in the inner wall of the cover body, an airbag is fixed to the inner wall of the pre-arched groove, a stop plate is slidably connected to the inner wall of the pre-arched groove, a connecting post is fixedly connected to the outer wall of the stop plate, and a baffle is fixed to the other end of the connecting post.

[0006] Preferably, a reinforcing frame is fixedly connected to the outer wall of the cover, and a first reinforcing rib is fixedly connected to the inner wall of the reinforcing frame, with the outer wall of the first reinforcing rib tightly fitted to the outer wall of the cover.

[0007] Preferably, the bottom of the cover is fixed with a support foot, the top of the cover is fixed with a display frame, and the inner wall of the cover is provided with a light-transmitting groove.

[0008] Preferably, the inner wall of the cover is fixed with a second reinforcing rib, the inner wall of the cover is fixed with a fixing frame, and the outer wall of the second reinforcing rib is fixedly connected to the outer wall of the fixing frame.

[0009] Preferably, a flow-blocking plate is fixed to the inner wall of the cover, and the outer wall of the flow-blocking plate is slidably connected to the outer wall of the baffle.

[0010] Preferably, a circuit board is fixed to the inner wall of the cover, and a pin array is fixed to the bottom of the circuit board.

[0011] Preferably, a fixing post is fixed to the bottom of the cover, and a fixing hole is provided on the inner wall of the fixing post.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention, by setting a buffer component, can absorb and disperse stress through elastic deformation, avoiding component breakage or excessive deformation caused by stress concentration. It better adapts to the expansion changes of colloids such as epoxy resin during high-temperature baking, providing a more reliable stress relief effect. Furthermore, the materials and manufacturing process used are relatively simple and the cost is low. It will not significantly increase the overall weight of the digital tube, which helps to reduce the production cost of the product. Attached Figure Description

[0013] Figure 1 A schematic diagram of a preferred embodiment of a digital tube reflector cover structure provided by this utility model; Figure 2 This is a schematic diagram of the cover and circuit board structure provided by this utility model; Figure 3 for Figure 2 An enlarged view of point A shown in the diagram; Figure 4 This is a schematic diagram of the fixing column and fixing hole structure provided by this utility model.

[0014] In the diagram: 1. Cover; 2. Buffer assembly; 201. Pre-arch groove; 202. Airbag; 203. Support plate; 204. Connecting post; 205. Baffle; 3. Reinforcing frame; 4. First reinforcing rib; 5. Support leg; 6. Display frame; 7. Light-transmitting groove; 8. Second reinforcing rib; 9. Fixing frame; 10. Baffle plate; 11. Circuit board; 12. PIN pin array; 13. Fixing post; 14. Fixing hole. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4As shown, a digital tube reflective cover structure includes a cover body 1 and a buffer assembly 2. The buffer assembly 2 is disposed on the inner wall of the cover body 1. The buffer assembly 2 includes a pre-arched groove 201 formed in the inner wall of the cover body 1. An airbag 202 is fixed to the inner wall of the pre-arched groove 201. A stop plate 203 is slidably connected to the inner wall of the pre-arched groove 201. A connecting post 204 is fixedly connected to the outer wall of the stop plate 203. A baffle 205 is fixed to the other end of the connecting post 204. The cover body 1 is the main outer shell of the digital tube, used to protect the internal components and provide a display window. The pre-arched groove 201 provides installation space for the airbag 202 and the stop plate 203. The airbag 202 absorbs the impact force and prevents the cover body 1 from deforming. The stop plate 203, the connecting post 204, and the baffle 205 transmit the impact force. When the epoxy resin and other colloids inside the cover body 1 expand during high-temperature baking, the expansion carries... The stress is transmitted from the baffle 205 to the connecting post 204 and the abutment 203. The abutment 203 contacts the airbag 202. After being transmitted by the baffle 205, the connecting post 204 and the abutment 203, the airbag 202 will first deform. The degree of elastic deformation of the airbag 202 is proportional to the magnitude of the stress it receives. Through this deformation, it can absorb some of the impact energy and convert mechanical energy into elastic potential energy, thereby effectively reducing the direct impact on the cover 1. Secondly, it should be noted that the core material of the airbag 202 is a suitable rubber substrate with high elasticity, temperature resistance and aging resistance, such as silicone rubber, according to the expansion temperature required by epoxy resin and other colloids. Moreover, the gravity generated by the colloid itself is small when epoxy resin and other colloids are injected, and it will not be transmitted to the airbag 202 through the baffle 205 to squeeze the airbag 202.

[0017] A reinforcing frame 3 is fixedly connected to the outer wall of the cover 1, and a first reinforcing rib 4 is fixedly connected to the inner wall of the reinforcing frame 3. The outer wall of the first reinforcing rib 4 is tightly fitted to the outer wall of the cover 1. The first reinforcing rib 4 is tightly fitted to the outer wall of the cover 1, and together they form a reinforcing frame, which can enhance the overall rigidity of the cover 1 and improve its ability to resist external deformation. When the cover 1 is subjected to lateral force or bending force, the reinforcing frame 3 and the first reinforcing rib 4 can disperse stress and prevent local stress concentration from causing the cover 1 to deform.

[0018] The bottom of the cover 1 is fixed with a support foot 5, and the top of the cover 1 is fixed with a display frame 6. The inner wall of the cover 1 is provided with a light-transmitting groove 7. The display frame 6 is the direct display area of ​​the digital tube. The light-transmitting groove 7 is opened in the inner wall of the cover 1, allowing the light emitted by the light-emitting diode inside the digital tube to pass through and illuminate the display frame 6, making the displayed numbers or symbols clearly visible. The design and position arrangement of the light-transmitting groove 7 can ensure the uniform propagation of light and improve the brightness and clarity of the display. The support foot 5 can ensure the stability of the digital tube in the horizontal direction and prevent the display effect from being affected by shaking or tilting.

[0019] A second reinforcing rib 8 is fixed to the inner wall of the cover 1, and a fixing frame 9 is fixed to the inner wall of the cover 1. The outer wall of the second reinforcing rib 8 is fixedly connected to the outer wall of the fixing frame 9. The second reinforcing rib 8 is trapezoidal and fixed to the inner wall of the cover 1, connected to the outer wall of the fixing frame 9, forming an internal support structure. The trapezoidal design allows the second reinforcing rib 8 to better distribute the force when bearing pressure. The fixing frame 9 further fixes the position of the reinforcing rib, enhances the stability of the entire internal structure, and can effectively resist pressure changes inside the cover 1, preventing the cover 1 from deforming due to uneven internal pressure. It should be noted that the second reinforcing rib 8 is fixed to the corners of the cover 1, enhancing the stability of the corners and further stabilizing the pressure inside the cover 1.

[0020] A flow-blocking plate 10 is fixed to the inner wall of the cover 1, and the outer wall of the flow-blocking plate 10 is slidably connected to the outer wall of the baffle 205. The flow-blocking plate 10 can prevent the colloid from entering the expansion gap between the baffle 205 and the cover 1 during the injection of epoxy resin and other colloids, which would cause the buffer to fail.

[0021] A circuit board 11 is fixed to the inner wall of the cover 1, and a pin header 12 is fixed to the bottom of the circuit board 11. The circuit board 11 is a PCB, which is the core electronic component of the digital tube, and integrates various electronic components and circuits.

[0022] A fixing post 13 is fixed to the bottom of the cover 1, and a fixing hole 14 is provided on the inner wall of the fixing post 13. The fixing post 13 and the fixing hole 14 are used to fix the cover 1 to other equipment or structures to ensure that the position of the digital tube is fixed during use and to avoid affecting its performance and display effect due to movement or vibration.

[0023] Working principle: When epoxy resin and other colloids are injected into the inside of the cover 1 and baked at high temperature, the colloids expand inside the cover 1, generating stress. When the cover 1 is impacted by the expansion force of the internal colloids, the airbag 202 deforms first after the stress is transmitted through the baffle 205, connecting column 204, and abutment 203. The deformation of the airbag 202 not only absorbs some of the impact energy, converting mechanical energy into elastic potential energy and reducing the direct impact on the cover 1, but also, through its elastic recovery force, buffers subsequent possible forces to a certain extent, making the cover 1 more stable under stress. During deformation, it can expand and contract along the reserved pre-arched groove 201, further reducing stress impact and preventing the cover 1 from deforming. At the same time, the reinforcing frame 3 is fixed to the outside of the cover 1, and the first reinforcing rib 4 is tightly attached to the outer wall of the cover 1. Together, they form a reinforcing frame. This frame can enhance the overall rigidity of the cover 1 and improve its ability to resist external deformation. When the cover 1 is subjected to lateral force or bending force, the reinforcing frame 3 and the first reinforcing rib 4 can distribute the force to a larger range, preventing local stress concentration from causing the cover 1 to deform. Together with the buffer component 2, they can prevent the cover 1 from deforming.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A digital tube reflector cover structure, comprising a cover body (1), characterized in that, Also includes: A buffer assembly (2) is disposed on the inner wall of the cover (1). The buffer assembly (2) includes a pre-arched groove (201) opened on the inner wall of the cover (1). An airbag (202) is fixed on the inner wall of the pre-arched groove (201). A stop plate (203) is slidably connected to the inner wall of the pre-arched groove (201). A connecting column (204) is fixedly connected to the outer wall of the stop plate (203). A baffle (205) is fixed at the other end of the connecting column (204).

2. The digital tube reflector cover structure according to claim 1, characterized in that: The outer wall of the cover (1) is fixedly connected to a reinforcing frame (3), and the inner wall of the reinforcing frame (3) is fixedly connected to a first reinforcing rib (4). The outer wall of the first reinforcing rib (4) is tightly fitted to the outer wall of the cover (1).

3. The digital tube reflector cover structure according to claim 1, characterized in that: The bottom of the cover (1) is fixed with a support foot (5), the top of the cover (1) is fixed with a display frame (6), and the inner wall of the cover (1) is provided with a light-transmitting groove (7).

4. The digital tube reflector cover structure according to claim 1, characterized in that: The inner wall of the cover (1) is fixed with a second reinforcing rib (8), and the inner wall of the cover (1) is fixed with a fixing frame (9). The outer wall of the second reinforcing rib (8) is fixedly connected to the outer wall of the fixing frame (9).

5. The digital tube reflector cover structure according to claim 1, characterized in that: The inner wall of the cover (1) is fixed with a flow-blocking plate (10), and the outer wall of the flow-blocking plate (10) is slidably connected to the outer wall of the baffle (205).

6. The digital tube reflector cover structure according to claim 1, characterized in that: A circuit board (11) is fixed to the inner wall of the cover (1), and a pin array (12) is fixed to the bottom of the circuit board (11).

7. The digital tube reflector cover structure according to claim 1, characterized in that: The bottom of the cover (1) is fixed with a fixing post (13), and the inner wall of the fixing post (13) is provided with a fixing hole (14).