LED nixie tube and electronic device
Patent Information
- Application Number
- CN202522268787.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-10-27
AI Technical Summary
[0004]本实用新型的主要目的是提出一种LED数码管及电子设备，旨在解决现有技术中LED数码管散热效率差，热量容易堆积造成损坏的问题
[0015]In this invention, a heat dissipation channel extending along the preset pattern is set at the position corresponding to the preset pattern on the support plate. This allows the heat generated by each LED during operation to be conducted to the support plate and enter the heat dissipation channel, and then discharged to the external environment through the heat dissipation holes, thus forming a new heat dissipation path and avoiding excessive reliance on pin output for heat. Because the heat dissipation channel is arranged along the preset pattern, it closely follows the actual distribution position of each LED, ensuring that heat is introduced into the heat dissipation channel within the shortest path. This achieves targeted and rapid heat conduction, avoids excessive local temperature rise, and ensures uniform temperature distribution throughout the display component. This significantly improves the heat dissipation efficiency of the LED digital tube, reduces the risk of light decay or damage caused by heat accumulation, and maintains a sealed dustproof effect. A dustproof film or filter can be used at the heat dissipation holes to achieve a dual effect of dust prevention and heat dissipation.
Smart Images
Figure CN224861992U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of digital tube technology, and in particular to an LED digital tube and electronic device. Background Technology
[0002] An LED digital tube is a display device composed of several light-emitting diodes (LEDs) arranged in a specific structure. A common type is the 7-segment display (7 LED segments + 1 decimal point), which can display Arabic numerals and some letters. By lighting different segments, it can display the numbers "0-9" and some characters (such as A, b, C, d, E, F, etc.). It is commonly used in electronic clocks, instruments, home appliance displays, counters, and other fields.
[0003] To prevent dust from entering and damaging the LED digital tube, existing LED digital tubes typically use a closed casing. The light-emitting diodes (LEDs) are fixed on a metal bracket, and heat is almost entirely conducted through a single path: LED → metal bracket → pins → air. The pin cross-sectional area is very small (typically less than 1 mm²). 2 The heat that can be carried away is limited, so the heat dissipation efficiency is poor and heat can easily accumulate and cause damage. Utility Model Content
[0004] The main purpose of this invention is to propose an LED digital tube and electronic device, which aims to solve the problem of poor heat dissipation efficiency and easy heat accumulation causing damage in the existing LED digital tube.
[0005] To achieve the above objectives, this utility model proposes an LED digital tube, comprising: A housing, wherein a mounting cavity is formed within the housing; A display component is located within the mounting cavity, and the display component includes a plurality of light-emitting diodes, which form a preset pattern. A support plate is connected to the cavity wall of the mounting cavity. The display component is mounted on the support plate. A heat dissipation channel is provided in the support plate. The heat dissipation channel extends along the preset pattern. The two ends of the heat dissipation channel are a starting end and an outlet end, respectively. The starting end is located at one end of the preset pattern. The heat dissipation channel passes through the support plate and extends to the cavity wall of the mounting cavity, so that the outlet end communicates with the external environment through the heat dissipation holes on the housing.
[0006] In one embodiment, the display assembly further includes a circuit board mounted on the support plate, wherein each of the light-emitting diodes is located on the side of the circuit board opposite to the support plate and is electrically connected to the circuit board.
[0007] In one embodiment, the circuit board has at least two pins on the side opposite to the light-emitting diode. One end of each pin is electrically connected to the circuit board, and the other end passes through the housing and extends out of the mounting cavity. The pins are used for electrical connection with external devices.
[0008] In one embodiment, a plurality of light-emitting diodes form at least two figure-eight structures, the heat dissipation channel is a continuous channel, the starting end is located at one end of one of the figure-eight structures, the heat dissipation channel is respectively wound in a serpentine manner to form a continuous heat dissipation part corresponding to each figure-eight structure, and the heat dissipation parts are interconnected.
[0009] In one embodiment, the width of the heat dissipation channel is greater than the width of the light-emitting diode.
[0010] In one embodiment, a cooling fan is provided at the starting end. The cooling fan is used to provide cooling airflow to the cooling channel. The cooling airflow enters the cooling channel from the starting end, flows through each of the cooling parts in sequence, and then flows to the external environment from the outlet end through the cooling hole.
[0011] In one embodiment, an air intake channel is also provided in the support plate. The air intake channel is located at the end of the heat dissipation channel away from the circuit board, and the air intake channel passes through the support plate and extends to the cavity wall of the mounting cavity. An air intake hole is provided in the housing corresponding to the position of the air intake channel.
[0012] In one embodiment, the air inlet and the heat dissipation hole are located at opposite end sidewalls of the housing.
[0013] In one embodiment, the housing includes an upper shell and a lower shell, the support plate is mounted on the inner wall of the lower shell, the upper shell covers the lower shell and forms the mounting cavity, the display assembly is located on the side of the support plate facing the upper shell, and the upper shell has a display window corresponding to the position of each of the light-emitting diodes.
[0014] This utility model also provides an electronic device, which uses the aforementioned LED digital tube.
[0015] In this invention, a heat dissipation channel extending along the preset pattern is set at the position corresponding to the preset pattern on the support plate. This allows the heat generated by each LED during operation to be conducted to the support plate and enter the heat dissipation channel, and then discharged to the external environment through the heat dissipation holes, thus forming a new heat dissipation path and avoiding excessive reliance on pin output for heat. Because the heat dissipation channel is arranged along the preset pattern, it closely follows the actual distribution position of each LED, ensuring that heat is introduced into the heat dissipation channel within the shortest path. This achieves targeted and rapid heat conduction, avoids excessive local temperature rise, and ensures uniform temperature distribution throughout the display component. This significantly improves the heat dissipation efficiency of the LED digital tube, reduces the risk of light decay or damage caused by heat accumulation, and maintains a sealed dustproof effect. A dustproof film or filter can be used at the heat dissipation holes to achieve a dual effect of dust prevention and heat dissipation. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0017] Figure 1 A cross-sectional structural diagram of an LED digital tube provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the LED digital tube display component and support plate provided in an embodiment of the present invention.
[0018] Explanation of icon numbers: 100. LED digital tube; 1. Housing; 11. Mounting cavity; 12. Upper shell; 13. Lower shell; 14. Display window; 2. Display component; 21. Light-emitting diode; 22. Circuit board; 23. Pin; 3. Support plate; 31. Heat dissipation channel; 32. Starting end; 33. Air outlet end; 34. Heat dissipation part; 35. Air inlet channel; 36. Air inlet hole; 4. Cooling fan.
[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0020] 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 scope of protection of the present utility model.
[0021] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0022] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0023] To prevent dust from entering and damaging the LED digital tube, existing LED digital tubes typically use a closed casing. The light-emitting diodes (LEDs) are fixed on a metal bracket, and heat is almost entirely conducted through a single path: LED → metal bracket → pins → air. The pin cross-sectional area is very small (typically less than 1 mm²). 2 The heat that can be carried away is limited, so the heat dissipation efficiency is poor and heat can easily accumulate and cause damage.
[0024] To solve the above problems, this utility model proposes an LED digital tube 100.
[0025] Please combine Figure 1 and Figure 2The LED digital tube 100 of this embodiment includes a housing 1, a display component 2, and a support plate 3. A mounting cavity 11 is formed inside the housing 1. The display component 2 is located inside the mounting cavity 11 and includes a plurality of light-emitting diodes 21 arranged in a preset pattern. The support plate 3 is connected to the cavity wall of the mounting cavity 11. The display component 2 is mounted on the support plate 3. A heat dissipation channel 31 is provided inside the support plate 3. The heat dissipation channel 31 extends along the preset pattern. The two ends of the heat dissipation channel 31 are a starting end 32 and an outlet end 33, respectively. The starting end 32 is located at one end of the preset pattern. The heat dissipation channel 31 passes through the support plate 3 and extends to the cavity wall of the mounting cavity 11 so that the outlet end 33 communicates with the external environment through the heat dissipation holes on the housing 1.
[0026] In the technical solution of this utility model, by setting a heat dissipation channel 31 extending along the preset pattern at the position corresponding to the preset pattern on the support plate 3, the heat generated by each light-emitting diode 21 during operation can be conducted to the support plate 3 nearby and enter the heat dissipation channel 31, and then discharged to the external environment through the heat dissipation holes, thereby forming a new heat dissipation path and avoiding excessive reliance on the pin 23 for heat dissipation. Since the heat dissipation channel 31 is arranged along the preset pattern, the channel can be close to the actual distribution position of each light-emitting diode 21, ensuring that heat is introduced into the heat dissipation channel 31 in the shortest path, achieving targeted and rapid heat conduction, avoiding excessive local temperature rise, and ensuring uniform temperature distribution of the entire display component 2, thereby significantly improving the heat dissipation efficiency of the LED digital tube 100, reducing the risk of device light decay or damage caused by heat accumulation, while the housing 1 still maintains a closed dustproof effect. A dustproof film or filter can be used at the heat dissipation holes to achieve a dual effect of dustproofing and heat dissipation.
[0027] In one embodiment, the display component 2 further includes a circuit board 22, which is mounted on a support plate 3. Each light-emitting diode 21 is located on the side of the circuit board 22 away from the support plate 3 and is electrically connected to the circuit board 22.
[0028] The heat from each LED 21 can be evenly conducted to the support plate 3 through the circuit board 22, and then discharged through the heat dissipation channel 31 extending along the preset pattern. This effectively increases the heat conduction area and path length, reduces the formation of local hot spots, and improves the overall heat dissipation efficiency. At the same time, since the circuit board 22 separates the LED 21 from the support plate 3, the installation position of the LED 21 can be optimized to avoid heat accumulation caused by direct contact, thereby further reducing the risk of device light decay or damage caused by heat accumulation. Meanwhile, the sealed dustproof effect of the housing 1 is still maintained, achieving an optimized effect that balances dustproof and efficient heat dissipation.
[0029] In one embodiment, the circuit board 22 has at least two pins 23 on the side opposite to the light-emitting diode 21. One end of the pin 23 is electrically connected to the circuit board 22, and the other end passes through the housing 1 and extends out of the mounting cavity 11. The pin 23 is used for electrical connection with external devices.
[0030] This allows the display component 2 to be conveniently and reliably electrically connected to external devices. Pin 23 can supply power to the circuit board 22 to ensure the normal operation of the light-emitting diode 21. At the same time, pin 23 can also form an additional heat conduction path for the circuit board 22, further improving the efficiency of heat transfer from the external environment of the light-emitting diode 21.
[0031] In one embodiment, a plurality of light-emitting diodes 21 form at least two figure-eight structures, the heat dissipation channel 31 is a continuous channel, the starting end 32 is located at one end of one of the figure-eight structures, the heat dissipation channel 31 is respectively wound in a serpentine manner to form a continuous heat dissipation part 34 corresponding to each figure-eight structure, and each heat dissipation part 34 is interconnected with each other.
[0032] Understandably, each heat dissipation part 34 is also arranged in a figure-eight shape, corresponding to the bottom of the figure-eight structure, and each heat dissipation part 34 is connected by a single channel, so that the entire heat dissipation channel 31 has only one continuous path, rather than multiple points connected. Through this arrangement, the heat dissipation channel 31 can tightly cover the figure-eight structure where all the light-emitting diodes 21 are located, and heat can flow continuously between each heat dissipation part 34, realizing the uniform distribution and rapid dissipation of heat from the high-temperature area to the low-temperature area. At the same time, the serpentine winding structure formed by the continuous channel increases the contact area and heat transfer path between the heat dissipation channel 31 and the heat source, significantly improving the heat dissipation efficiency, effectively avoiding the generation of local hot spots, thereby reducing the risk of light decay or damage to the light-emitting diodes 21 caused by heat accumulation.
[0033] In one embodiment, the width of the heat dissipation channel 31 is greater than the width of the light-emitting diode 21. The greater width of the heat dissipation channel 31 allows the heat dissipation portion 34 arranged along the heat dissipation channel 31 to completely cover the area where the light-emitting diode 21 is located, increasing the contact area for heat conduction and diffusion, thereby enabling the heat generated by each light-emitting diode 21 to be more fully introduced into the heat dissipation channel 31.
[0034] In one embodiment, a cooling fan 4 is provided at the starting end 32. The cooling fan 4 is used to provide cooling airflow to the cooling channel 31. The cooling airflow enters the cooling channel 31 from the starting end 32, flows through each cooling part 34 in sequence, and then flows to the external environment from the outlet end 33 through the cooling hole.
[0035] After the heat dissipation airflow enters the heat dissipation channel 31 from the starting end 32, it can flow sequentially through the figure-eight structures corresponding to the multiple heat dissipation parts 34 along the continuous channel. The heat dissipation parts 34 formed by the serpentine winding flow continuously between the figure-eight structures, ensuring that the heat is evenly carried away within the entire preset pattern range. Then, it is discharged to the external environment from the air outlet 33 through the heat dissipation holes on the housing 1. Thus, the forced convection provided by the fan enables the heat to be quickly conducted from the light-emitting diode 21 to the heat dissipation channel 31 and continuously discharged, which significantly improves the heat dissipation efficiency and effectively prevents excessive local temperature rise and heat accumulation.
[0036] In one embodiment, an air intake channel 35 is also provided in the support plate 3. The air intake channel 35 is located at the end of the heat dissipation channel 31 away from the circuit board 22, and the air intake channel 35 passes through the support plate 3 and extends to the cavity wall of the mounting cavity 11. An air intake hole 36 is provided in the housing 1 at the position corresponding to the air intake channel 35.
[0037] The housing 1 has an air inlet 36 at the position corresponding to the air inlet channel 35, so that external air can enter the air inlet channel 35 through the air inlet 36 and flow into the mounting cavity 11 from the air inlet channel 35, thereby supplementing the heat dissipation airflow in the heat dissipation channel 31. This ensures that the airflow entering the heat dissipation channel 31 from the starting end 32 is continuous and sufficient, so that heat is continuously carried away as it flows along the continuous heat dissipation channel 31 through the multiple figure-eight structures corresponding to each heat dissipation part 34, thereby further improving the overall heat dissipation efficiency and uniformly reducing the temperature of the light-emitting diode 21.
[0038] In one embodiment, the air inlet 36 and the heat dissipation hole are located at opposite end sidewalls of the housing 1.
[0039] The air inlet 36 and the heat dissipation hole are located on opposite side walls of the housing 1, thereby avoiding airflow interference caused by the air inlet and outlet being on the same side. This allows the air entering the air inlet channel 35 from the air inlet 36 to flow smoothly into the mounting cavity 11. Under the action of the cooling fan 4, the air flows along the continuous heat dissipation channel 31 through the multiple figure-eight structures corresponding to each heat dissipation part 34, and is then discharged to the external environment from the air outlet 33 through the heat dissipation hole. This ensures that the airflow is continuous and uninterrupted, carrying away the heat generated by each light-emitting diode 21.
[0040] In one embodiment, the housing 1 includes an upper housing 12 and a lower housing 13. A support plate 3 is installed on the inner wall of the lower housing 13. The upper housing 12 covers the lower housing 13 and forms a mounting cavity 11. The display component 2 is located on the side of the support plate 3 facing the upper housing 12. The upper housing 12 has a display window 14 corresponding to the position of each light-emitting diode 21.
[0041] The upper shell 12 can protect the light-emitting diode 21 from impact damage and extend its service life. On the other hand, the display window 14 will not affect the normal display function of the light-emitting diode 21.
[0042] This utility model also provides an electronic device that utilizes the aforementioned LED digital tube 100. The specific structure of the LED digital tube 100 is as described in the above embodiments. Since this bioelectric signal detection device employs all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here. Specifically, the electronic device can be an elevator display screen, a bus display screen, an alarm clock, a calculator, a remote control, or other devices that require displaying simple patterns.
[0043] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made under the concept of this utility model using the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.
Claims
1. An LED digital tube, characterized in that, include: A housing, wherein a mounting cavity is formed within the housing; A display component is located within the mounting cavity, and the display component includes a plurality of light-emitting diodes, which form a preset pattern. A support plate is connected to the cavity wall of the mounting cavity. The display component is mounted on the support plate. A heat dissipation channel is provided in the support plate. The heat dissipation channel extends along the preset pattern. The two ends of the heat dissipation channel are a starting end and an outlet end, respectively. The starting end is located at one end of the preset pattern. The heat dissipation channel passes through the support plate and extends to the cavity wall of the mounting cavity, so that the outlet end communicates with the external environment through the heat dissipation holes on the housing.
2. The LED digital tube as described in claim 1, characterized in that, The display assembly also includes a circuit board mounted on the support plate, with each of the light-emitting diodes located on the side of the circuit board away from the support plate and electrically connected to the circuit board.
3. The LED digital tube as described in claim 2, characterized in that, The circuit board has at least two pins on the side opposite to the light-emitting diode. One end of each pin is electrically connected to the circuit board, and the other end passes through the housing and extends out of the mounting cavity. The pins are used for electrical connection with external devices.
4. The LED digital tube as described in claim 2, characterized in that, The plurality of light-emitting diodes form at least two figure-eight structures. The heat dissipation channel is a continuous channel. The starting end is located at one end of one of the figure-eight structures. The heat dissipation channel is wound in a serpentine manner to form a continuous heat dissipation part corresponding to each figure-eight structure, and the heat dissipation parts are interconnected.
5. The LED digital tube as described in claim 4, characterized in that, The width of the heat dissipation channel is greater than the width of the light-emitting diode.
6. The LED digital tube as described in claim 4, characterized in that, A cooling fan is provided at the starting end. The cooling fan is used to provide cooling airflow to the cooling channel. The cooling airflow enters the cooling channel from the starting end, flows through each of the cooling parts in sequence, and then flows out of the outlet end through the cooling hole to the external environment.
7. The LED digital tube as described in claim 6, characterized in that, An air intake channel is also provided in the support plate. The air intake channel is located at the end of the heat dissipation channel away from the circuit board. The air intake channel passes through the support plate and extends to the cavity wall of the mounting cavity. An air intake hole is provided in the housing corresponding to the position of the air intake channel.
8. The LED digital tube as described in claim 7, characterized in that, The air inlet and the heat dissipation hole are located on the opposite side walls of the housing.
9. The LED digital tube as described in any one of claims 1 to 8, characterized in that, The housing includes an upper shell and a lower shell. The support plate is installed on the inner wall of the lower shell. The upper shell covers the lower shell and forms the mounting cavity. The display component is located on the side of the support plate facing the upper shell. The upper shell has a display window corresponding to the position of each light-emitting diode.
10. An electronic device, characterized in that, The electronic device uses an LED digital tube as described in any one of claims 1 to 9.