Step type thin-wall LED display device
By adding steps to the plastic case side wall of the LED display device, the contact problem during installation of PIN needles is solved, and the plastic case strength and injection molding effect are improved, and the better display device structure and molding effect are achieved.
Patent Information
- Application Number
- CN202421804020.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-29
AI Technical Summary
When installing PIN pins in the existing LED display device, since the PIN pin hole is too close to the plastic shell edge wall, the solder paste part and the tail widening part of the PIN pin are easily contacted with the plastic shell edge wall, which affects the installation and use. When thinning the plastic shell edge wall to solve this problem, the strength of the plastic shell is reduced, the injection molding pressure is high, and it is difficult to show a full state.
By adding steps to the side wall of the plastic shell, a step-type thin-wall LED display device is formed to increase the strength of the plastic shell and reduce the injection molding pressure to ensure the injection molding effect of the plastic shell.
The addition of steps not only increases the strength of the plastic shell, but also reduces the injection molding pressure, ensuring the injection molding effect of the plastic shell, and avoiding the problems of lowering the strength of the plastic shell and poor injection molding.
Smart Images
Figure CN222981802U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of LED display, relates to an LED display device, and particularly relates to a stepped thin-wall type LED display device. Background Art
[0002] The core part of an LED display device includes a plastic shell and a PCB (printed circuit board). The PCB is assembled inside the back of the plastic shell, and the windows on the plastic shell are lit by the lamp cores on the PCB to achieve the display function. As Figure 1 and Figure 2 shown, after the PCB is installed on the plastic shell, there are a total of 10 PIN pinholes 6 at the left and right ends of the PCB (not shown in the figure). Since the PIN pinholes 6 are very close to the side walls of the plastic shell, the top solder part and the tail widened part of the PIN pins installed on the PIN pinholes 6 are likely to contact the side walls of the plastic shell. In order not to affect the installation of the PIN pins and the use of the PCB, the existing method is to solve this problem by thinning the side walls of the plastic shell.
[0003] However, when using the above method, when the side walls are thinned, the strength of the plastic shell will also decrease, resulting in a relatively large injection molding pressure for the plastic shell, and it is difficult to present a full state (miniature or top convex). Summary of the Invention
[0004] Object of the Invention: In order to overcome the deficiencies in the prior art, a stepped thin-wall type LED display device is provided. By adding steps, not only the strength of the plastic shell is improved, but also the injection molding pressure for the plastic shell is reduced, and the injection molding effect of the plastic shell can be guaranteed.
[0005] Technical Solution: To achieve the above object, the utility model provides a stepped thin-wall type LED display device, including a plastic shell and a PCB. The side walls of the plastic shell include a light-emitting part side wall and a connecting part side wall. The light-emitting part side wall protrudes radially inward to form a step, and the PCB is supported on the step.
[0006] Further, the surface of the step is flush with the entrance surface of the light-emitting part side wall.
[0007] Further, the thickness of the connecting part side wall is 0.4 mm - 0.6 mm, and the thickness of the step is 0.4 mm.
[0008] Further, the thickness of the connecting part side wall is 0.7 mm - 1.2 mm, and the thickness of the step is 0.5 mm.
[0009] Further, the thickness of the connecting part side wall is 1.3 mm - 1.8 mm, and the thickness of the step is 0.6 mm.
[0010] Among the above three thickness options, while maximizing the strength of the plastic shell, it can ensure that the step does not affect the installation of the PIN pins.
[0011] Advantageous effects: Compared with the prior art, the present utility model not only improves the strength of the plastic shell by adding steps, but also reduces the injection molding pressure on the plastic shell, ensuring the injection molding effect of the plastic shell. Description of the Drawings
[0012] Figure 1 It is a front view structure diagram of the plastic shell in the thin-wall LED display device;
[0013] Figure 2 It is a back view structure diagram of the plastic shell in the thin-wall LED display device;
[0014] Figure 3 It is a connection diagram of the plastic shell and the PCB in the present utility model;
[0015] Figure 4 It is a front view structure diagram of the plastic shell in Embodiment 4;
[0016] Figure 5 It is a back view structure diagram of the plastic shell in Embodiment 4. Detailed Embodiments
[0017] The following further clarifies the present utility model in conjunction with the drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. After reading the present utility model, various equivalent modifications made by those skilled in the art fall within the scope defined by the appended claims of this application.
[0018] Embodiment 1:
[0019] As Figure 3 shown, this embodiment provides a stepped thin-wall LED display device, including a plastic shell 1 and a PCB 2. The side wall of the plastic shell 1 includes a light-emitting part side wall 3 and a connecting part side wall 4. The light-emitting part side wall 3 radially protrudes inward to form a step 5. The PCB 2 is assembled inside the back of the plastic shell 1 and supported on the step 5. The surface of the step 5 is flush with the entrance surface of the light-emitting part side wall 3. The thickness of the connecting part side wall 4 is 0.6 mm, and the thickness of the step 5 is 0.4 mm.
[0020] Embodiment 2:
[0021] As Figure 3As shown in the figure, this embodiment provides a stepped thin-walled LED display device, which includes a plastic shell 1 and a PCB 2. The side wall of the plastic shell 1 includes a light-emitting part side wall 3 and a connecting part side wall 4. The light-emitting part side wall 3 protrudes radially inward to form a step 5. The PCB 2 is assembled inside the back of the plastic shell 1 and supported on the step 5. The surface of the step 5 is flush with the entrance surface of the light-emitting part side wall 3. The thickness of the connecting part side wall 4 is 0.7 mm, and the thickness of the step 5 is 0.5 mm.
[0022] Embodiment 3:
[0023] As Figure 3 shown in the figure, this embodiment provides a stepped thin-walled LED display device, which includes a plastic shell 1 and a PCB 2. The side wall of the plastic shell 1 includes a light-emitting part side wall 3 and a connecting part side wall 4. The light-emitting part side wall 3 protrudes radially inward to form a step 5. The PCB 2 is assembled inside the back of the plastic shell 1 and supported on the step 5. The surface of the step 5 is flush with the entrance surface of the light-emitting part side wall 3. The thickness of the connecting part side wall 4 is 1.8 mm, and the thickness of the step 5 is 0.6 mm.
[0024] Embodiment 4:
[0025] As Figure 3 shown in the figure, this embodiment provides a stepped thin-walled LED display device, which includes a plastic shell 1 and a PCB 2. The side wall of the plastic shell 1 includes a light-emitting part side wall 3 and a connecting part side wall 4. The light-emitting part side wall 3 protrudes radially inward to form a step 5. The PCB 2 is assembled inside the back of the plastic shell 1 and supported on the step 5. The surface of the step 5 is flush with the entrance surface of the light-emitting part side wall 3. The thickness of the connecting part side wall is 1.3 mm, and the thickness of the step 5 is 0.6 mm.
[0026] As Figure 4 and 5 shown in the figure, in this embodiment, there are 7 PIN pin holes 6 on the PCB 2 close to the side wall of the plastic shell 1. 7 PIN pins can be successfully installed into the 7 PIN pin holes 6 respectively without contacting the side wall of the plastic shell 1.
[0027] Due to the step 5, the strength of the plastic shell 1 in this embodiment is significantly improved, which is beneficial to maintaining the overall connection strength of the LED display device and reduces the injection molding pressure on the plastic shell 1, ensuring the injection molding effect of the plastic shell 1.
Claims
1. A stepped thin-wall LED display device, comprising a plastic shell and a PCB, characterized in that: The side walls of the plastic shell include a light-emitting portion side wall and a connecting portion side wall. The light-emitting portion side wall radially protrudes inward to form a step, and the PCB is supported on the step.
2. A stepped thin-wall LED display device according to claim 1, characterized in that: The step surface is flush with the entrance surface of the side wall of the light-emitting portion.
3. A stepped thin-wall LED display device according to claim 1, characterized in that: The thickness of the side wall of the connection part is 0.4mm-0.6mm, and the thickness of the step is 0.4mm.
4. A stepped thin-wall LED display device according to claim 1, characterized in that: The thickness of the side wall of the connection part is 0.7mm-1.2mm, and the thickness of the step is 0.5mm.
5. The step-type thin-wall LED display device according to claim 1, characterized in that: The thickness of the side wall of the connection part is 1.3mm-1.8mm, and the thickness of the step is 0.6mm.