Dustproof type bulb lamp
By introducing a circular heat-conducting base and heat dissipation fins into the bulb, combined with a snap-fit structure and dustproof seals, the heat dissipation and dustproof problems of the bulb are solved, improving the overall service life and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGMEN QIANZHU LIGHTING TECHNOLOGY CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-09
AI Technical Summary
Existing bulb lamps have limited heat dissipation performance, which affects the lifespan of the light source board. At the same time, their dustproof performance is insufficient, making it difficult to meet the needs of long-term use.
A dustproof bulb lamp was designed, which adopts a circular heat-conducting base and heat dissipation fin structure, combined with U-shaped and n-shaped snap-fit protrusions and dustproof seals to improve heat dissipation efficiency and enhance sealing performance. A horn-shaped dust cover prevents dust from entering.
It achieves excellent heat dissipation and dustproof performance, extends the service life of the light source board, and improves the stability and reliability of the connection.
Smart Images

Figure CN224340073U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bulb technology, specifically relating to a dustproof bulb. Background Technology
[0002] A bulb lamp is a common energy-saving lighting fixture structure, which generally includes a bulb holder, a light source board, and a spherical lamp cover. To improve its dustproof performance, a sealing component is installed at the connection between the bulb holder and the spherical lamp cover, as shown in CN202420575986.4. Although this can meet the general usage requirements, its heat dissipation performance is limited due to structural limitations, resulting in the inability to effectively dissipate internal heat. Over time, this will affect the lifespan of the light source board. Therefore, designing a bulb lamp that can improve both heat dissipation and dustproof performance is a technical problem that those skilled in the art need to solve. Utility Model Content
[0003] The purpose of this invention is to provide a dustproof bulb lamp with a reasonable structural design and good dustproof and heat dissipation performance.
[0004] The technical solution to achieve the purpose of this utility model is a dustproof bulb lamp, including a bulb lamp cover, a light source board and a lamp holder with a threaded lamp head. A driving power supply is provided in the lamp holder. A circular heat-conducting seat is provided between the bulb lamp cover and the lamp holder. Several heat dissipation fins are integrally formed on the edge of the circular heat-conducting seat.
[0005] The top surface of the circular heat-conducting base is provided with a U-shaped buckle protrusion, and the bottom surface of the circular heat-conducting base is provided with an n-shaped buckle protrusion.
[0006] The driving power supply and the light source board are respectively fixed on the top and bottom surfaces of the circular heat-conducting base;
[0007] The bottom edge of the lamp holder is locked within the recessed area of the U-shaped buckle protrusion and the top edge of the bulb lamp cover is locked within the recessed area of the n-shaped buckle protrusion. The heat dissipation fins are located on the outside of the bulb lamp cover and the lamp holder.
[0008] Dustproof seals are provided between the lamp holder and the U-shaped buckle protrusion, and between the bulb lamp cover and the n-shaped buckle protrusion.
[0009] A further preferred embodiment is that a horn-shaped dust cover is provided on the lower part of the outer wall of the lamp holder, and the top of the heat dissipation fins is located directly below the horn-shaped dust cover.
[0010] A further preferred embodiment is that: the inner wall of the recessed area of the U-shaped buckle ring is provided with buckle protrusions, and the lower inner wall of the lamp holder is provided with an annular groove;
[0011] The lamp holder is inserted into the recessed area of the U-shaped buckle protrusion, and the buckle protrusion is inserted into the annular groove.
[0012] A further preferred embodiment is that at least two locking screws are provided on the outer wall of the n-shaped buckle protrusion;
[0013] The top of the bulb cover is inserted into the recessed area of the n-shaped buckle and positioned by the locking screw.
[0014] A further preferred embodiment is that the dustproof seal is a rubber gasket.
[0015] A further preferred embodiment is that the circular heat-conducting base and the heat dissipation fins are both aluminum or copper structural components.
[0016] This utility model has positive effects: The structure of this utility model is reasonable. By setting a circular heat-conducting base in conjunction with heat dissipation fins, the lamp holder and bulb cover are respectively connected to the top and bottom surfaces of the circular heat-conducting base. This not only helps to improve the effectiveness of heat dissipation, but also allows for the installation of dustproof seals between the lamp holder and the circular heat-conducting base, and between the bulb cover and the circular heat-conducting base, which helps to improve dustproof and waterproof performance. Moreover, the overall structure is easy to assemble and disassemble, stable and reliable in use, and highly applicable. Attached Figure Description
[0017] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0020] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;
[0021] Figure 4 This is a schematic diagram of the specific structure of the circular heat-conducting base and heat dissipation fins in this utility model.
[0022] Reference numerals: 1. Bulb cover; 2. Light source board; 3. Lamp holder; 4. Driver power supply; 5. Circular heat-conducting base; 6. Heat dissipation fins; 7. U-shaped buckle protrusion; 8. N-shaped buckle protrusion; 9. Dustproof seal; 10. Buckle protrusion; 11. Annular groove; 12. Locking screw; 13. Horn-shaped dustproof cover. Detailed Implementation
[0023] 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.
[0024] Example
[0025] See Figures 1 to 4 As shown, a dustproof bulb lamp includes a bulb lamp cover 1, a light source board 2, and a lamp holder 3 with a threaded lamp head. A driving power supply 4 is provided inside the lamp holder. In this embodiment, the above structures are all conventional structures of the prior art, so they are not described in detail.
[0026] In this embodiment, a circular heat-conducting seat 5 is provided between the bulb lamp cover and the lamp holder. Several heat dissipation fins 6 are integrally formed on the edge of the circular heat-conducting seat. The height of the heat dissipation fins is greater than the thickness of the circular heat-conducting seat, and both the circular heat-conducting seat and the heat dissipation fins are aluminum or copper structural components.
[0027] In this embodiment, the top surface of the circular heat-conducting base is provided with a U-shaped snap-fit protrusion 7, and the bottom surface of the circular heat-conducting base is provided with an n-shaped snap-fit protrusion 8. During assembly, the driving power supply and the light source board are respectively fixed on the top and bottom surfaces of the circular heat-conducting base. The bottom edge of the lamp holder is locked within the recessed area of the U-shaped snap-fit protrusion, and the top edge of the bulb lamp cover is locked within the recessed area of the n-shaped snap-fit protrusion. The heat dissipation fins are located on the outside of the bulb lamp cover and the lamp holder. Dustproof seals 9 are provided between the lamp holder and the U-shaped snap-fit protrusion, and between the bulb lamp cover and the n-shaped snap-fit protrusion. Through the above structure, the sealing, dustproof, and waterproof performance of the connection can be improved, and the dustproof seal is a rubber gasket.
[0028] The wall thickness of the lamp holder matches the width of the recessed area of the U-shaped buckle protrusion, and the wall thickness of the bulb lamp cover matches the width of the recessed area of the n-shaped buckle protrusion.
[0029] Furthermore, in practical applications, the inner wall of the recessed area of the U-shaped buckle ring is provided with buckle protrusions 10, and the lower inner wall of the lamp holder is provided with an annular groove 11; the lamp holder is inserted into the recessed area of the U-shaped buckle ring, and the buckle protrusions are inserted into the annular groove. At least two locking screws 12 are provided on the outer wall of the n-shaped buckle protrusion; the top of the bulb cover is inserted into the recessed area of the n-shaped buckle protrusion and positioned by the locking screws. Through the cooperation of the above structures, the stability and reliability of the connection can be improved, preventing loosening or detachment. The locking screws are located in the gap between adjacent heat dissipation fins.
[0030] In this embodiment, a horn-shaped dust cover 13 is provided on the lower part of the outer wall of the lamp holder, and the top of the heat dissipation fins is located directly below the horn-shaped dust cover. The horn-shaped dust cover can prevent dust from falling onto the top surface of the heat dissipation fins.
[0031] This utility model has positive effects: The structure of this utility model is reasonable. By setting a circular heat-conducting base in conjunction with heat dissipation fins, the lamp holder and bulb cover are respectively connected to the top and bottom surfaces of the circular heat-conducting base. This not only helps to improve the effectiveness of heat dissipation, but also allows for the installation of dustproof seals between the lamp holder and the circular heat-conducting base, and between the bulb cover and the circular heat-conducting base, which helps to improve dustproof and waterproof performance. Moreover, the overall structure is easy to assemble and disassemble, stable and reliable in use, and highly applicable.
[0032] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural parts described in the instruction manual can also be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.
[0033] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.
Claims
1. A dustproof type bulb lamp comprising a bulb lamp cover, a light source board, and a lamp holder with a threaded base, a driving power source being arranged in the lamp holder, characterized in that: A circular heat-conducting base is provided between the bulb cover and the lamp holder, and several heat dissipation fins are integrally formed on the edge of the circular heat-conducting base. The top surface of the circular heat-conducting base is provided with a U-shaped buckle protrusion, and the bottom surface of the circular heat-conducting base is provided with an n-shaped buckle protrusion. The driving power supply and the light source board are respectively fixed on the top and bottom surfaces of the circular heat-conducting base; The bottom edge of the lamp holder is locked within the recessed area of the U-shaped buckle protrusion and the top edge of the bulb lamp cover is locked within the recessed area of the n-shaped buckle protrusion. The heat dissipation fins are located on the outside of the bulb lamp cover and the lamp holder. Dustproof seals are provided between the lamp holder and the U-shaped buckle protrusion, and between the bulb lamp cover and the n-shaped buckle protrusion.
2. A dust-proof type bulb lamp according to claim 1, characterized by: The lower part of the outer wall of the lamp holder is provided with a horn-shaped dust cover, and the top of the heat dissipation fins is located directly below the horn-shaped dust cover.
3. A dust protected globe lamp according to claim 2, characterized in that: The U-shaped buckle ring has buckle protrusions on the inner wall of its recessed area, and the lamp holder has an annular groove on its lower inner wall. The lamp holder is inserted into the recessed area of the U-shaped buckle protrusion, and the buckle protrusion is inserted into the annular groove.
4. A dustproof bulb lamp according to claim 2, characterized in that: At least two locking screws are provided on the outer wall of the n-shaped buckle protrusion; The top of the bulb lampshade is inserted into the recessed area of the n-shaped buckle and positioned by the locking screw.
5. A dustproof bulb lamp according to claim 1, characterized in that: The dustproof seal is a rubber gasket.
6. A dustproof bulb lamp according to claim 1, characterized in that: The circular heat-conducting base and heat dissipation fins are both made of aluminum or copper.