Welding-free embedded direct illumination lamp

By using a weld-free electrode plate and lamp board flexible connection design, the high cost and instability caused by traditional welding are solved, achieving the effects of simplified installation, improved connection reliability and extended service life.

CN223965358UActive Publication Date: 2026-03-03GUANGDONG JUSEN HARDWARE PRECISION MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

The power connection wires of existing recessed direct lights need to be soldered, which leads to high labor costs, unstable soldering quality, and affects the reliability and service life of electrical connections. In addition, the maintenance process is complicated and it is difficult to guarantee the quality of the solder joints.

Method used

The electrode sheet and the lamp board are connected without soldering. Through the design of the socket, mounting groove and inverted plate, the electrode sheet, which is integrally formed with copper sheet, is elastically pressed to connect with the lamp board, which simplifies the installation process and improves the connection stability.

Benefits of technology

It enables low-cost, rapid installation and disassembly, ensures the stability of electrical connections, extends service life, reduces maintenance difficulty and cost, and improves the overall quality and market competitiveness of lighting fixtures.

✦ Generated by Eureka AI based on patent content.

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Abstract

A welding-free embedded direct lighting lamp comprises a lamp holder, the bottom of the lamp holder is concave upwards to form a mounting cavity, a lamp panel is mounted at the top of the mounting cavity, and a light homogenizing plate covers an opening of the mounting cavity; the end covers are installed at the two ends of the lamp holder, the end covers cover the two ends of the installation cavity in a sealing mode, and the power source connecting wire transversely penetrates through the end covers and is electrically connected with the lamp panel. The end cover comprises a cover plate and a socket protruding out of the inner wall of the cover plate, and the socket extends into the mounting cavity to connect the end cover with the lamp holder; a mounting groove is formed in the top of the socket, an electrode plate is arranged at the end of the power supply connecting wire, and the electrode plate sequentially penetrates through the cover plate and the mounting groove, elastically presses the contact of the lamp panel and is electrically connected with the contact of the lamp panel. The LED lamp has the advantages that the electrode plates are connected with the lamp panel without welding, the installation process is simplified, the installation efficiency is improved, and the electrode plates and the lamp panel can be rapidly installed and connected.
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Description

Technical Field

[0001] This utility model relates to the field of lighting technology, specifically a solderless recessed direct lamp. Background Technology

[0002] Commercially available recessed direct-light lamps typically include a rectangular lamp holder, a light panel installed inside the holder for illumination, and end caps that seal both ends of the lamp holder. The main power supply is connected to the light panel via a connecting wire, providing power and illumination. In existing technology, the power connection wire needs to pass through the end cap and continue into the lamp, where it is soldered to pads on the light panel to achieve the connection. Traditional soldering requires workers to precisely thread the thin power wire through openings in the end caps and solder it to the pads on the light panel. This is time-consuming, labor-intensive, and inefficient, requiring skilled workers and specialized equipment. Furthermore, manual soldering compromises the quality of the welds, which directly affects the reliability and lifespan of the lamp's electrical connections. Poor weld quality can lead to issues like incomplete welds, false welds, or damage from overheating, resulting in poor contact, flickering, or even malfunction during use. This increases the lamp's defect rate and reduces production efficiency. Furthermore, due to the welding, this connection is a fixed connection. When the lamp board malfunctions and needs to be replaced or maintained, the user must first melt the weld point and disassemble the entire board, and then repeat the above welding and installation operation. The process is troublesome and complicated, and repeated welding can easily cause secondary damage to the lamp board. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of existing technologies and provide a solderless embedded direct lamp with a simple structure, low manufacturing cost, solderless connection of electrode plates, simple and quick operation, high disassembly and assembly efficiency, stable and reliable connection, long service life, and convenient maintenance.

[0004] The purpose of this utility model is achieved in the following way: a solderless embedded direct lamp, which includes a lamp holder, the bottom of the lamp holder is concave upward to form a mounting cavity, a lamp plate is installed on the top of the mounting cavity, and a light-diffusing plate is covered at the opening of the mounting cavity;

[0005] It also includes end caps installed at both ends of the lamp holder. The end caps cover both ends of the mounting cavity, and the power connection wires pass through the end caps and are electrically connected to the lamp board.

[0006] The end cap includes a cover plate and a socket protruding from its inner wall. The socket extends into the mounting cavity and connects the end cap to the lamp holder. The top of the socket has a mounting groove. The end of the power connection line is provided with an electrode plate. The electrode plate passes through the cover plate and the mounting groove in sequence and is elastically pressed onto the contact point of the lamp plate to connect with it electrically.

[0007] A slot is provided below the mounting groove, and an inverted plate is provided below the electrode sheet. The inverted plate is installed in the slot to restrict the displacement of the electrode sheet.

[0008] The end of the electrode sheet is bent upward to form an elastic plate, which is pressed onto the contact point on the lamp plate and electrically connected to it.

[0009] The electrode sheet, elastic plate, and inverted plate are integrally formed from copper sheets.

[0010] The port of the mounting cavity is inclined outward to form a limited light surface, and the light-diffusing plate is located at the top of the limited light surface.

[0011] The light-limiting surface is set outward in an arc shape.

[0012] The cover plate is provided with a connecting groove, which is connected to the mounting groove.

[0013] The mounting cavity has slots on both sides of its inner wall, and the light-diffusing plate is held in the slots.

[0014] The mounting cavity has protruding limiting platforms on both sides of its top, and the socket is connected to the mounting cavity. The socket is connected to the lower part of the limiting platform.

[0015] The beneficial effects of this utility model are: 1. Simple structure, low manufacturing cost, and improved market competitiveness.

[0016] 2. The electrode sheet connection method eliminates the need for soldering, simplifying the installation process, improving installation efficiency, and enabling rapid installation and connection between the electrode sheet and the lamp board.

[0017] 3. The electrode sheet has its own elastic plate that keeps it in stable contact with the lamp plate, ensuring the stability and reliability of the electrical connection and improving the overall service life and quality of the direct lamp.

[0018] 4. The connection between the electrode plate and the lamp board can be disconnected simply by removing the end cap. The disassembly and assembly process is simple and quick, reducing maintenance costs and difficulty.

[0019] 5. Adjust the light emitted from the light-limiting surface of the light-diffusing plate to achieve a direct lighting effect within its illumination range. Attached Figure Description

[0020] Figure 1 This is a rendering of the final assembly of this utility model.

[0021] Figure 2 This is a cross-sectional view of the direct lamp in this utility model.

[0022] Figure 3 This is an exploded view of the structure of the lamp holder and end cap in this utility model.

[0023] Figure 4 This is an exploded view of the structure of the lamp holder, lamp plate, and light-diffusing plate in this utility model.

[0024] Figure 5 This is a schematic diagram of the structure of the end cap of this utility model.

[0025] Figure 6-7 This is an exploded view of the structure of the end cap of this utility model. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings. A solderless recessed direct lamp includes a lamp holder 1, the bottom of which is concave upward to form a mounting cavity 3, a lamp plate 4 is mounted on the top of the mounting cavity 3, and a light-diffusing plate 5 is covered at the opening of the mounting cavity 3;

[0027] It also includes end caps 6 installed at both ends of the lamp holder 1. The end caps 6 cover both ends of the mounting cavity 3, and the power connection line 2 passes through the end caps 6 and is electrically connected to the lamp board 4.

[0028] The end cap 6 includes a cover plate 61 and a socket 62 protruding from its inner wall. The socket 62 extends into the mounting cavity 3 and connects the end cap 6 to the lamp holder 1. The top of the socket 62 is provided with a mounting groove 7. The end of the power connection line 2 is provided with an electrode plate 8. The electrode plate 8 passes through the cover plate 61 and the mounting groove 7 in sequence and is elastically pressed onto the contact point of the lamp plate 4 to connect with it electrically.

[0029] A slot 71 is provided below the mounting groove 7, and an inverted plate 81 is provided below the electrode sheet 8. The inverted plate 81 is installed in the slot 71 to restrict the displacement of the electrode sheet 8.

[0030] The end of the electrode sheet 8 is bent upward to form an elastic plate 82, which is pressed onto the contact point on the lamp plate 4 and electrically connected to it.

[0031] The electrode sheet 8, the elastic plate 82, and the inverted plate 81 are integrally formed from copper sheets.

[0032] The port of the mounting cavity 3 is inclined outward to form a limited light surface 31, and the light-diffusing plate 5 is located at the top of the limited light surface 31.

[0033] The light-limiting surface 31 is arranged in an arc shape and tilted outward.

[0034] The cover plate 61 is provided with a connecting groove 611, which is connected to the mounting groove 7.

[0035] The mounting cavity 3 has slots 32 on both sides of its inner wall, and the light-diffusing plate 5 is held in the slots 32.

[0036] The mounting cavity 3 has two protruding limiting platforms 33 on its top sides. The socket 62 is connected to the mounting cavity 3 and is connected to the lower part of the limiting platform 33.

[0037] Working Principle: In the structure of the direct-illuminator, the bottom of the lamp holder has an upward-recessed mounting cavity. The lamp plate and the light-diffusing plate are respectively installed in the mounting cavity. The light-diffusing plate is located at the port of the mounting cavity and is distributed at the top of the light-limiting surface that is inclined outwards from the port. The light-diffusing plate enables the light emitted by the lamp plate to be emitted evenly and softly. The light-limiting surface, as a design to control the light, can re-emit the light emitted from the lamp plate and passing through the light-diffusing plate through its unique outward tilt angle and arc shape, thereby adjusting the light emission angle. Users can adjust and control the light-limiting surface according to actual illumination needs, thereby achieving the functions of focusing, diffusing, or illuminating at a specific angle to meet the needs of different lighting scenarios. Secondly, as part of the direct-illuminator's visible range, the light-limiting surface enhances the overall aesthetics of the direct-illuminator and improves the user's visual experience.

[0038] In the aforementioned mounting cavity, an end cap is used to seal the end, and the power connection cable passes through the end cap to connect to the lamp panel. Unlike traditional welded designs, the end cap in this case includes a cover plate and a socket protruding from its inner wall. The socket extends and is inserted into the mounting cavity, connecting and securing the end cap to the lamp holder.

[0039] It should be noted that a mounting slot is provided at the top of the socket. The electrode plate at the end of the power connection cable passes through the cover plate and the mounting slot in sequence, and is elastically pressed against the contacts on the lamp board, thereby achieving the purpose of electrical connection between the power connection cable and the lamp board. During the installation and connection of the electrode plate, the electrode plate is inserted into the mounting slot, and the elastic plate formed by the bending of its top passes through the top of the mounting slot. Under the action of its own elastic force, it pops upward. The elastic pressing connection ensures a tight contact and ensures that the electrode plate is always tightly connected to the lamp board. This achieves solderless operation between the power connection cable and the lamp board, eliminating the tedious, inefficient, error-prone, and inconsistent quality of manual soldering. It avoids problems such as cold solder joints and false solder joints that may occur. The elastic pressing provides a consistently stable pressing connection force between the electrode plate and the lamp board, improving the reliability and stability of the electrical connection.

[0040] Meanwhile, the assembly process has been simplified. When installing the electrode plates, the socket can be inserted into the lamp holder along with the end cover without any additional installation operations, thus improving assembly efficiency. When it is necessary to replace or maintain the lamp board or electrode plates, the connection between the electrode plates and the lamp board can be disconnected simply by pulling out the end cover, without the need to melt the solder joints, which facilitates user maintenance and replacement and reduces user maintenance costs.

[0041] To further enhance the connection strength of the electrode sheet within the mounting groove, a slot is provided below the mounting groove for assembly. An inverted plate is provided below the electrode sheet. When the electrode sheet aligns with the lamp panel, the inverted plate engages precisely within the slot. The slot and the inverted plate mechanically cooperate to firmly and stably confine the electrode sheet within the mounting groove, preventing it from sliding or shifting. Even under external impact or vibration, it ensures a continuous and stable contact connection between the electrode sheet and the lamp panel, guaranteeing the normal operation of the direct-illumination lamp.

[0042] Furthermore, the electrode sheet, elastic plate, and inverted plate are all integrally formed from copper sheets. Utilizing the inherent elasticity of copper, the electrode sheet is bent at the factory to form the elastic plate required for specific needs. The elastic plate retracts under pressure and pops out when pressure is released. The elastic plate provides a more precise and stable contact pressure, ensuring reliable contact connection between the lamp board and the electrode sheet within the installation error range. This integrated design avoids the manufacturing and assembly of multiple components, simplifies the production process, reduces production costs, and provides stronger connection reliability compared to traditional welding assembly methods.

[0043] The lamp panel and light diffuser are installed using a detachable insertion method. For example, the light diffuser is inserted and clamped into a slot formed in the inner wall of the mounting cavity. The lamp panel is first inserted between the limiting platforms on both sides of the mounting cavity. After the socket is aligned with the mounting cavity, the socket is fixed below the limiting platforms, and the lamp panel is clamped between the mounting cavity and the socket. The installation and disassembly operations are simple and quick, with low operation difficulty and high assembly and disassembly efficiency. Users can quickly assemble it, so it can be widely promoted.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A solderless recessed direct lamp, comprising a lamp holder (1), wherein the bottom of the lamp holder (1) is recessed upward to form a mounting cavity (3), a lamp plate (4) is mounted on the top of the mounting cavity (3), and a light-diffusing plate (5) is covered at the opening of the mounting cavity (3). It also includes end caps (6) installed at both ends of the lamp holder (1), the end caps (6) sealing the two ends of the mounting cavity (3), the power connection line (2) passing through the end caps (6) and electrically connected to the lamp board (4), characterized in that: The end cap (6) includes a cover plate (61) and a socket (62) protruding from its inner wall. The socket (62) extends into the mounting cavity (3) to connect the end cap (6) to the lamp holder (1). The top of the socket (62) is provided with a mounting groove (7). The end of the power connection line (2) is provided with an electrode plate (8). The electrode plate (8) passes through the cover plate (61) and the mounting groove (7) in sequence, and is elastically pressed onto the contact point of the lamp plate (4) to connect with it electrically.

2. The solderless recessed direct light according to claim 1, characterized in that: A slot (71) is provided below the mounting groove (7), and an inverted plate (81) is provided below the electrode sheet (8). The inverted plate (81) is installed in the slot (71) to restrict the displacement of the electrode sheet (8).

3. The solderless recessed direct lamp according to claim 2, characterized in that: The end of the electrode sheet (8) is bent upward to form an elastic plate (82), and the elastic plate (82) is pressed on the contact point on the lamp plate (4) and electrically connected to it.

4. A solderless recessed direct light according to claim 3, characterized in that: The electrode sheet (8), elastic plate (82), and inverted plate (81) are integrally formed from copper sheets.

5. A solderless recessed direct light according to claim 1, characterized in that: The port of the mounting cavity (3) is inclined outward to provide a limited light surface (31), and the light-diffusing plate (5) is located at the top of the limited light surface (31).

6. A solderless recessed direct light according to claim 5, characterized in that: The light-limiting surface (31) is set outward in an arc shape.

7. A solderless recessed direct light according to claim 1, characterized in that: The cover plate (61) is provided with a connecting groove (611) through it, and the connecting groove (611) is connected to the mounting groove (7).

8. A solderless recessed direct light according to claim 1, characterized in that: The mounting cavity (3) has slots (32) on both sides of its inner wall, and the light-diffusing plate (5) is held in the slots (32).

9. A solderless recessed direct light according to claim 1, characterized in that: The mounting cavity (3) has a limiting platform (33) protruding on both sides of its top. The socket (62) is connected to the mounting cavity (3) and is located below the limiting platform (33).