LED circuit board with mounting and fixing device
By designing a combination structure of screw rods and rubber sleeves on the LED circuit board, the problem of indentation at the connection between the LED circuit board and the housing during long-term use is solved, achieving LED circuit board installation with good protection and convenient disassembly and assembly.
Patent Information
- Application Number
- CN202520253434.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-17
AI Technical Summary
LED circuit boards are prone to developing indentations at the connection point with the inner wall of the housing during long-term use, which can lead to damage.
Design an LED circuit board with a built-in mounting and fixing device. It adopts a combination structure of screw rod and rubber ring sleeve. The screw rod’s thread and screw head achieve support and fixing, and the rubber sleeve reduces contact indentation. Combined with positioning holes, it improves disassembly and assembly efficiency.
It effectively prevents indentations at the connection between the LED circuit board and the inner wall of the housing, improves disassembly and assembly efficiency and ease of installation, and enhances insulation performance.
Smart Images

Figure CN223786252U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of LED circuit board technology, specifically to an LED circuit board with a built-in mounting and fixing device. Background Technology
[0002] An LED circuit board is an electronic device specifically designed to control and drive light-emitting diodes (LEDs). Its main function is to convert electrical energy supplied by a power source into the appropriate current, voltage, and frequency for LED operation, ensuring normal operation and a long lifespan. LED circuit boards are widely used in various applications such as home lighting, commercial lighting, and displays.
[0003] Currently, in the long-term use of LED circuit boards in the industry, the connection between the LED circuit board and the inner wall of the casing is prone to indentation, which may cause damage to the LED circuit board during long-term use. Therefore, there is a need to provide an LED circuit board with a built-in disassembly and assembly structure. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide an LED circuit board with a built-in mounting and fixing device to solve the technical problem that currently, in the actual long-term use of LED circuit boards in the industry, the surface of the LED circuit board connected to the inner wall of the housing is prone to indentation due to long-term contact, which may lead to some damage to the LED circuit board during long-term use.
[0005] To achieve the above objectives, this utility model employs the following technical solution:
[0006] An LED circuit board with a built-in mounting and fixing device includes an LED circuit board, which is configured as a square substrate. Each of the four corners of the LED circuit board has a through circular hole, and a screw rod is installed in each of the circular holes. The bottom of the screw rod is provided with threads, and the top of the screw rod is provided with a screw cap.
[0007] As a preferred embodiment of this utility model, the bottom end of the screw rod is provided with a conical tip, which is located below the thread teeth at the bottom end of the screw rod.
[0008] As a preferred embodiment of this utility model, the top of the screw cap is provided with a cross-shaped perforated groove.
[0009] As a preferred embodiment of this utility model, a circular retaining sleeve is fitted onto the middle part of the screw rod, and the circular retaining sleeve is made of rubber.
[0010] As a preferred embodiment of this utility model, the surface of the screw rod is provided with a straight groove, and the inner wall of the circular sleeve is provided with a retaining protrusion, which is slidably embedded in the groove.
[0011] As a preferred embodiment of this utility model, the surface of the LED circuit board is provided with a number of positioning holes near the edge of the LED circuit board.
[0012] This invention features a cross-shaped slot at the top of the screw cap, facilitating screwdriver rotation. A circular retainer, made of rubber, is fitted into the middle of the screw shank. Rubber is soft, non-conductive, inexpensive, and easy to mold. This rubber retainer effectively reduces the pressure on the LED circuit board at the connection point with the inner wall of the housing during prolonged contact, preventing indentations and providing good protection and insulation.
[0013] This invention features a straight groove on the surface of the screw rod, and a retaining protrusion on the inner wall of the circular retaining sleeve, which slides into the groove. This design prevents the retaining protrusion from falling off and facilitates adjustment of the circular retaining sleeve.
[0014] This invention provides several positioning holes on the surface of the LED circuit board near its edge, which facilitates quick assembly and disassembly of the LED circuit board, improving assembly and disassembly efficiency and ease of installation.
[0015] This invention features through-holes at each of the four corners of an LED circuit board, with a screw rod installed in each hole. The screw rods support and fix the LED circuit board, providing effective support during installation. The screw rods also have threads at their bottoms for easy installation and fixation, and a screw cap at the top facilitates rotation, enabling quick and easy assembly and disassembly.
[0016] This invention features a conical tip at the bottom of the screw rod, positioned below the thread teeth. This tip facilitates initial screw connection by guiding the screw through the thread teeth, making it easier for the screw rod's threads to be screwed into the inner wall of the housing.
[0017] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description
[0018] Figure 1 This is a front view structural diagram of the LED circuit board with built-in mounting and fixing device of this utility model;
[0019] Figure 2 This is a top view of the LED circuit board with its own mounting and fixing device according to this utility model.
[0020] Figure 3 This is a partial front cross-sectional view of the LED circuit board with its own mounting and fixing device, as shown in this utility model.
[0021] Figure 4 This is a top view cross-sectional structural diagram of the screw rod of this utility model;
[0022] In the diagram: 1. LED circuit board; 2. screw cap; 3. circular retainer; 4. screw rod; 5. thread; 6. pointed tip; 7. positioning hole; 8. plum blossom groove; 9. wire groove; 10. round hole; 11. retaining protrusion. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0026] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0027] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable. Example
[0028] Please see Figure 1-4 The present invention provides a technical solution: an LED circuit board with a built-in mounting and fixing device, comprising an LED circuit board 1, the LED circuit board 1 being configured as a square substrate, and each of the four corners of the LED circuit board 1 having a through circular hole 10, a screw rod 4 being installed in each circular hole 10, the bottom of the screw rod 4 having a thread 5, and the top of the screw rod 4 having a screw cap 2.
[0029] Specifically, in this embodiment, the present invention provides through-holes at the four corners of the LED circuit board, and installs a screw rod in each hole. The screw rods support and fix the LED circuit board, thus providing effective support during installation. The screw rods have threads at the bottom for easy installation and fixation, effectively supporting and fixing the LED circuit board. The screw rods have caps at the top for easy rotation, facilitating quick and easy assembly and disassembly.
[0030] The bottom end of the screw rod 4 is provided with a conical tip 6, which is located below the thread tooth 5 at the bottom end of the screw rod 4.
[0031] The top of the screw cap 2 has a cross-shaped groove 8.
[0032] Specifically, in this embodiment, the present invention provides a conical tip at the bottom of the screw rod. The tip is located below the thread teeth at the bottom of the screw rod, which facilitates guidance during the initial screw connection and makes it easier for the thread teeth of the screw rod to be screwed into the inner wall of the housing.
[0033] Example 2
[0034] Please see Figure 1-4 This is another technical solution provided by the present invention. This embodiment has the same features as the above embodiment 1, and the similarities will not be described in this embodiment. The specific differences are as follows:
[0035] An LED circuit board with a built-in mounting and fixing device includes an LED circuit board 1. The LED circuit board 1 is configured as a square substrate. Each of the four corners of the LED circuit board 1 has a through circular hole 10. A screw rod 4 is installed in each circular hole 10. The bottom of the screw rod 4 is provided with a thread 5, and the top of the screw rod 4 is provided with a screw cap 2.
[0036] Specifically, in this embodiment, the present invention provides through-holes at the four corners of the LED circuit board, and installs a screw rod in each hole. The screw rods support and fix the LED circuit board, thus providing effective support during installation. The screw rods have threads at the bottom for easy installation and fixation, effectively supporting and fixing the LED circuit board. The screw rods have caps at the top for easy rotation, facilitating quick and easy assembly and disassembly.
[0037] A circular retaining sleeve 3, made of rubber, is fitted into the middle of the screw rod 4.
[0038] Specifically, in this embodiment, the present invention features a cross-shaped groove at the top of the screw cap to facilitate screwdriver rotation. A circular retainer made of rubber is fitted into the middle of the screw shank. Rubber is soft, non-conductive, inexpensive, and easy to mold. The rubber retainer effectively reduces the risk of indentation at the connection point between the LED circuit board and the inner wall of the housing during prolonged contact, resulting in good protection and excellent insulation.
[0039] The surface of the screw rod 4 is provided with a straight groove 9, and the inner wall of the circular sleeve 3 is provided with a locking protrusion 11, which slides into the groove 9.
[0040] Specifically, in this embodiment, the present invention features a straight groove on the surface of the screw rod and a retaining protrusion on the inner wall of the circular retaining sleeve, which slides into the groove. This prevents the retaining protrusion from falling off and facilitates adjustment of the circular retaining sleeve.
[0041] Several positioning holes 7 are provided on the surface of LED circuit board 1 near the edge of LED circuit board 1.
[0042] Specifically, in this embodiment, the present invention provides several positioning holes on the surface of the LED circuit board near the edge of the LED circuit board, which facilitates quick assembly and disassembly of the LED circuit board, improves the assembly and disassembly efficiency of the LED circuit board, and enhances the ease of installation of the LED circuit board.
[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. An LED circuit board with a built-in mounting and fixing device, comprising an LED circuit board (1), characterized in that: The LED circuit board (1) is configured as a square substrate. Each of the four corners of the LED circuit board (1) has a through circular hole (10). A screw rod (4) is installed in each of the circular holes (10). The bottom of the screw rod (4) is provided with a thread (5), and the top of the screw rod (4) is provided with a screw cap (2).
2. The LED circuit board with a built-in mounting and fixing device according to claim 1, characterized in that: The bottom end of the screw rod (4) is provided with a conical tip (6), which is located below the thread tooth (5) at the bottom end of the screw rod (4).
3. The LED circuit board with a built-in mounting and fixing device according to claim 1, characterized in that: The top of the screw cap (2) is provided with a cross-shaped plum blossom groove (8).
4. The LED circuit board with a built-in mounting and fixing device according to claim 1, characterized in that: The screw rod (4) is fitted with a circular retainer (3) in the middle, and the circular retainer (3) is made of rubber.
5. The LED circuit board with a built-in mounting and fixing device according to claim 4, characterized in that: The surface of the screw rod (4) is provided with a straight groove (9), and the inner wall of the circular sleeve (3) is provided with a locking protrusion (11), which slides into the groove (9).
6. The LED circuit board with a built-in mounting and fixing device according to claim 5, characterized in that: The surface of the LED circuit board (1) has several positioning holes (7) near the edge of the LED circuit board (1).