Radiating seat for LED (light-emitting diode) bulb lamp

Abstract

The utility model discloses a heat dissipation base for an LED bulb lamp. The heat dissipation base comprises an outer cylinder, an inner cylinder, a fixing base and a plurality of heat dissipation fins. The outer cylinder is arranged on the outer side of the inner cylinder, the outer cylinder and the inner cylinder are coaxially arranged, an annular groove is formed between the outer cylinder and the inner cylinder, the cooling fins are evenly distributed in the annular groove in a radial mode at intervals, the inner ends of the cooling fins are fixedly connected with the inner cylinder, the outer ends of the cooling fins are fixedly connected with the outer cylinder, cooling holes are formed in the cooling fins, and the cooling fins are arranged in the annular groove. The outer cylinder is inserted into the fixed seat and is fixedly connected with the fixed seat, and a wire passing hole is formed in the fixed seat. The radiating seat for the LED bulb lamp has the advantages that the contact area with air can be increased, the radiating effect is improved, and the radiating seat is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of lighting fixtures, and in particular to a heat sink for LED bulbs. Background Technology

[0002] Due to their long lifespan, low energy consumption, and significant energy savings, LED lights are widely used as light sources in daily life, such as LED bulbs. However, with the increase in the number of LEDs in LED bulbs, as well as the improvement in power and brightness, the heat generated during LED operation has increased significantly. Therefore, improving the heat dissipation effect of LED bulbs has become a major issue in LED bulb technology.

[0003] The current structure of an LED bulb includes a lamp holder, a lamp base connected to the lamp holder, a circuit board installed inside the lamp base, a heat sink connected to the lamp base, an LED panel installed at the end of the heat sink away from the lamp base, LED chips mounted on the LED panel, and a lamp cover connected to the heat sink. Heat is dissipated outward through the heat sink, which currently consists of several radially arranged heat dissipation fins, mostly made of aluminum, with a single-piece structure. This results in a small contact area with the air, leading to low heat dissipation efficiency and easy heat accumulation inside, significantly affecting the bulb's lifespan. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this patent application is how to provide a heat sink for LED bulbs that can increase the contact area with air, improve the heat dissipation effect, and is easy to use.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A heat sink for an LED bulb includes an outer cylinder, an inner cylinder, a fixing base, and several heat sink fins;

[0007] The outer cylinder is disposed outside the inner cylinder and is coaxial with the inner cylinder, forming an annular groove between them. The heat dissipation fins are radially spaced and evenly distributed within the annular groove. The inner end of each heat dissipation fin is fixedly connected to the inner cylinder, and the outer end of each heat dissipation fin is fixedly connected to the outer cylinder. Heat dissipation holes are provided on the heat dissipation fins. The outer cylinder is inserted into and fixedly connected to the fixing seat. The fixing seat has wire holes.

[0008] In this way, the heat sink provides an installation base through the mounting bracket, the LED light board is fixedly connected to the mounting bracket, and wiring holes are provided for easy wiring. The overall structure is formed by the outer cylinder, inner cylinder, mounting bracket, and several heat dissipation fins to achieve heat dissipation. By making holes in the heat dissipation fins, the contact area between the fins and the air is increased, enabling rapid heat dissipation.

[0009] Preferably, an upper enclosure plate is fixedly installed at the upper end of the heat dissipation fins, and a lower enclosure plate is fixedly installed at the lower end of the heat dissipation fins. Both sides of the upper enclosure plate and the lower enclosure plate extend beyond the heat dissipation fins and outward.

[0010] Preferably, the mounting base has a reinforcement assembly with the same number of heat dissipation fins fixedly installed inside it. The reinforcement assembly includes two reinforcement plates, the two sides of the lower enclosure plate are attached to the reinforcement plates, and the lower side of the lower enclosure plate is attached to the mounting base.

[0011] Preferably, both the outer cylinder and the inner cylinder have a plurality of openings arranged in an array.

[0012] Preferably, the two ends of the upper circumference plate are fixedly connected to the outer cylinder and the inner cylinder, respectively.

[0013] Preferably, the outer cylinder, inner cylinder, fixing base, heat dissipation fins, upper surrounding plate, lower surrounding plate, and reinforcing plate are all made of aluminum.

[0014] In summary, this LED bulb heat sink has the advantages of increasing the contact area with air, improving heat dissipation, and being easy to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a heat sink for an LED bulb according to the present invention.

[0016] Figure 2 for Figure 1 The split diagram.

[0017] Figure 3 This is an enlarged schematic diagram of the heat dissipation fins. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that directional terms such as "upper," "lower," "top," and "bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as limiting the scope of protection of the present invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0019] like Figure 1-3 As shown, a heat sink for an LED bulb includes an outer cylinder 1, an inner cylinder 2, a fixing base 3, and several heat dissipation fins 4.

[0020] The outer cylinder is disposed outside the inner cylinder and is coaxial with the inner cylinder, forming an annular groove between them. The heat dissipation fins are radially spaced and evenly distributed within the annular groove. The inner end of the heat dissipation fins is fixedly connected to the inner cylinder, and the outer end of the heat dissipation fins is fixedly connected to the outer cylinder. Heat dissipation holes 5 are provided on the heat dissipation fins. The outer cylinder is inserted into the fixing seat and fixedly connected to the fixing seat. The fixing seat has wire holes 6.

[0021] In this way, the heat sink provides an installation base through the mounting bracket, the LED light board is fixedly connected to the mounting bracket, and wiring holes are provided for easy wiring. The overall structure is formed by the outer cylinder, inner cylinder, mounting bracket, and several heat dissipation fins to achieve heat dissipation. By making holes in the heat dissipation fins, the contact area between the fins and the air is increased, enabling rapid heat dissipation.

[0022] In implementation, an upper enclosure plate 6 is fixedly installed at the upper end of the heat dissipation fins, and a lower enclosure plate 7 is fixedly installed at the lower end of the heat dissipation fins. Both sides of the upper and lower enclosure plates extend beyond the heat dissipation fins and outward. The purpose of the upper and lower enclosure plates is firstly to further increase heat dissipation efficiency and increase the base area with the air; secondly, to facilitate connection between the upper enclosure plate and the lamp holder, and between the lower enclosure plate and the mounting base.

[0023] In implementation, a reinforcement assembly with the same number of heat dissipation fins is fixedly installed inside the mounting base. The reinforcement assembly includes two reinforcement plates 9. The two sides of the lower enclosure plate are attached to the reinforcement plates, and the lower side of the lower enclosure plate is attached to the mounting base. Through the reinforcement plates, the heat from the mounting base can also be transferred to the lower enclosure plate, further improving the heat transfer effect and accelerating heat dissipation.

[0024] In practice, both the outer and inner cylinders are arrayed with a number of openings 10. This increases the contact area between the outer and inner cylinders and the air, thereby improving heat dissipation efficiency.

[0025] In practice, the two ends of the upper shroud are fixedly connected to the outer cylinder and the inner cylinder, respectively. This further improves the installation stability of the heat dissipation fins.

[0026] In practice, the outer cylinder, inner cylinder, fixing base, heat dissipation fins, upper surrounding plate, lower surrounding plate, and reinforcing plate are all made of aluminum. This facilitates heat dissipation. In this application, the fixed connections are welded; for example, the upper surrounding plate is welded to the inner cylinder, outer cylinder, and heat dissipation fins; the lower surrounding plate is welded to the heat dissipation fins; and the outer cylinder is welded to the fixing base and heat dissipation fins.

[0027] Finally, it should be noted that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A heat sink for LED bulb, characterized in that, It comprises an outer cylinder (1), an inner cylinder (2), a fixing base (3) and a plurality of heat dissipation fins (4); The outer cylinder is arranged outside the inner cylinder and coaxially arranged with the inner cylinder, and a ring groove is formed between the outer cylinder and the inner cylinder, the heat dissipation fins are evenly distributed in the ring groove in a radial manner, the inner ends of the heat dissipation fins are fixedly connected with the inner cylinder, the outer ends of the heat dissipation fins are fixedly connected with the outer cylinder, the heat dissipation fins are provided with heat dissipation holes (5), the outer cylinder is inserted into the fixing base and fixedly connected with the fixing base, and the fixing base is provided with a wire hole (6).

2. The heat sink base for LED bulb lamp according to claim 1, wherein, Upper end of the heat dissipation fin is fixedly provided with an upper surrounding plate (7), and lower end of the heat dissipation fin is fixedly provided with a lower surrounding plate (8), and both sides of the upper surrounding plate and the lower surrounding plate exceed the heat dissipation fin and extend outward.

3. The heat sink base for LED bulb lamp according to claim 2, characterized in that, The fixing base is fixedly provided with reinforcing components same in number with the heat dissipation fins, the reinforcing component comprises two reinforcing plates (9), both sides of the lower surrounding plate are attached to the reinforcing plate, and the lower side of the lower surrounding plate is attached to the fixing base.

4. The heat sink base for LED bulb lamp according to claim 3, characterized in that, Both the outer cylinder and the inner cylinder are provided with a plurality of openings (10).

5. The heat sink base for LED bulb lamp according to claim 4, wherein, Both ends of the upper surrounding plate are fixedly connected with the outer cylinder and the inner cylinder respectively.

6. The heat sink base for LED bulb lamp according to claim 5, wherein, Both the outer cylinder and the inner cylinder are made of aluminum material.

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