Efficient heat dissipation lamp

Abstract

The utility model discloses an efficient heat dissipation lamp which comprises a shell assembly, a heat dissipation structure and at least one light-emitting body. The heat dissipation structure comprises a heat dissipation piece and ventilation holes, the interior of the shell assembly is divided into a heat dissipation cavity and an installation cavity through the heat dissipation piece, and the ventilation holes are formed in the upper end face and the lower end face of the shell assembly at the same time and communicate with the heat dissipation cavity so that the air cooling effect can be achieved, the service life can be prolonged, light attenuation can be reduced, and the lighting effect stability can be kept. Meanwhile, the mounting cavity is kept relatively closed to mount the luminous body, so that external dust and insects are prevented from entering the mounting cavity to influence the lighting effect; the lamp is efficient in heat dissipation, compact in structure and high in reliability, and the comprehensive performance and the use experience of the lamp are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of lamps and lanterns, in particular to a high -efficient heat dissipation lamps and lanterns. BACKGROUND

[0002] With the wide application of high -efficient light source such as LED, the heat dissipation performance of lamps and lanterns has become the key factor to influence its service life and light efficiency stability;However, the existing lamps and lanterns generally exist technical bottleneck in heat dissipation design, and it is difficult to meet the growing heat dissipation demand.

[0003] Traditional lamps and lanterns adopt single heat dissipation structure, such as simple aluminum heat dissipation fin or closed shell, and the heat dissipation efficiency is low;When the lamps and lanterns work for a long time, the large amount of heat generated by LED chip and other core components cannot be dissipated in time, resulting in continuous temperature rise inside;High temperature not only accelerates the light decay of LED chip, reduces the luminous efficiency, but also shortens the service life of driving power supply, capacitor and other electronic components, and even causes circuit failure in serious cases, which has safety hazards.

[0004] Part of lamps and lanterns trying to optimize heat dissipation adopt the way of increasing the number of heat dissipation fins or increasing the heat dissipation area, but often lead to bulky lamp body, weight increase, affect installation convenience and aesthetics;Some products use fan to assist heat dissipation, although it can improve the heat dissipation efficiency, but the noise generated by fan operation will interfere with the use environment, and the fan itself has the problems of short service life, easy to accumulate dust and damage, which increases the maintenance cost;In addition, some lamps and lanterns excessively compress the internal space for pursuing thin design, further hinder heat conduction and convection, and aggravate the heat dissipation problem. SUMMARY

[0005] In order to solve the above technical problems, the utility model provides a kind of high -efficient heat dissipation lamps and lanterns, including shell assembly, heat dissipation structure and at least one luminous body;Heat dissipation structure includes heat dissipation piece and ventilation hole, heat dissipation piece separates the shell assembly into heat dissipation cavity and installation cavity, ventilation hole is simultaneously arranged on the upper and lower two end surfaces of shell assembly and is communicated with heat dissipation cavity to realize air cooling effect, prolong service life, reduce light decay, maintain light efficiency stability;At the same time, installation cavity remains relatively closed to install luminous body, prevent dust and insects from entering installation cavity from outside to affect lighting effect;The lamp of the utility model is high -efficient, compact structure, high reliability, improves the comprehensive performance and use experience of lamps and lanterns.

[0006] The technical scheme of the utility model is realized as follows:

[0007] A high-efficiency heat dissipation lamp includes a housing assembly, a heat dissipation structure, and at least one light-emitting element. The heat dissipation structure includes a heat sink and ventilation holes. The heat sink is disposed in the housing assembly and divides the interior of the housing assembly into a heat dissipation cavity and at least one mounting cavity. The light-emitting element is disposed on the heat sink and located in the mounting cavity. The ventilation holes are provided on both the upper and lower end faces of the housing assembly, and the ventilation holes are all connected to the heat dissipation cavity. The heat dissipation structure is configured such that the heat of the light-emitting element is conducted to the heat sink and carried away by the air flowing in the ventilation holes and the heat dissipation cavity.

[0008] This solution employs air-cooled heat dissipation. The light-emitting element is mounted on a heat sink, and the heat generated by the light-emitting element during operation is conducted to the heat sink. Air enters through a ventilation hole at one end of the housing assembly, passes through the heat dissipation cavity, and exits through a ventilation hole at the other end. After entering the heat dissipation cavity, the air carries away the heat from the heat sink, achieving efficient heat dissipation, thereby extending the lifespan of the luminaire, reducing light decay, and maintaining stable luminous efficacy. Simultaneously, this solution utilizes natural airflow for heat dissipation, eliminating the need for fans or additional heat sinks, thus maintaining a compact structure and a slim luminaire. The heat sink separates the heat dissipation cavity from the mounting cavity, ensuring that airflow is confined within the heat dissipation cavity while maintaining good airtightness in the mounting cavity. This prevents dust and insects from the external environment from entering the mounting cavity and affecting the luminaire's lighting effect.

[0009] Preferably, the heat dissipation cavity is divided into a first part and a second part along the vertical direction, with the width of the first part being greater than the width of the second part. The ventilation hole near the first part is called the first ventilation hole, and the ventilation hole near the second part is called the second ventilation hole. Horizontally, the first ventilation hole is closer to the edge of the housing assembly than the second ventilation hole. The heat dissipation component has an extension extending horizontally, with a heat dissipation surface facing the first part. The airflow is not straight up and down, but has a horizontal flow path, meaning the air flows over the heat dissipation surface, which greatly increases the heat dissipation area. The airflow can carry away more heat, increasing the heat dissipation effect. The light-emitting element is mounted on the extension, allowing for direct heat conduction, which further enhances the heat dissipation effect.

[0010] Preferably, the first ventilation hole is located near the outer edge of the first part, and the second ventilation hole is located near the center of the second part. The first and second ventilation holes determine the positions where air enters and exits. The large distance between them results in a longer airflow path, which increases the area of ​​airflow and thus improves the heat dissipation effect.

[0011] Preferably, there are multiple first and second ventilation holes, which are evenly distributed circumferentially. The diameter of the distributed first ventilation holes is larger than that of the distributed second ventilation holes. The large number of ventilation holes provides excellent airflow even if they are small, while the small ventilation holes also prevent insects from entering the lamp.

[0012] Preferably, the heat sink includes a vertical stepped portion, one end of which abuts against the upper or lower end of the housing assembly, and the other end of the stepped portion extends horizontally outward with an extension portion that protrudes into the housing assembly and abuts against the other end of the housing assembly. This achieves the effect of the heat sink separating space.

[0013] Preferably, there are two mounting cavities: a first mounting cavity and a second mounting cavity. The heat dissipation cavity is formed on the inner side of the stepped portion, and the first mounting cavity is formed on the outer side of the stepped portion. The outer edge of the extension abuts against the housing assembly, and the extension also abuts against the housing assembly at its middle portion. A second mounting cavity is formed between the outer edge and the middle portion of the extension. Both the first and second mounting cavities contain the light-emitting element, with the light-emitting elements in the first and second mounting cavities facing opposite directions. The lamp has light-emitting elements in two directions, achieving simultaneous heat dissipation with only one heat dissipation structure—a clever and efficient solution.

[0014] Preferably, the extension includes a boss portion located between the middle and the outer edge of the extension, the boss portion protruding vertically from the extension, the stepped portion abutting against the upper or lower end of the housing assembly, and the boss portion abutting against the other end of the housing assembly; a second mounting cavity is formed between the boss portion and the housing assembly.

[0015] Preferably, the heat sink is made of a metal material, specifically a metal with high thermal conductivity, such as aluminum.

[0016] Preferably, the housing assembly includes an upper cover plate, a lower cover plate, and a light-transmitting element. The upper cover plate and the lower cover plate are provided with the ventilation holes. The upper cover plate, the lower cover plate, and the heat dissipation element form the heat dissipation cavity, and the light-transmitting element and the heat dissipation element form the mounting cavity.

[0017] Preferably, the housing assembly also includes a frame component, which is hollow to form an accommodating space. The heat dissipation component and the light transmission component are disposed in the accommodating space, and the upper cover plate and the lower cover plate are connected to the heat dissipation component.

[0018] The design starting point, concept, and beneficial effects of this utility model, which adopts the above technical solution, are as follows:

[0019] This solution employs air-cooled heat dissipation. The light-emitting element is mounted on a heat sink, and the heat generated by the light-emitting element during operation is conducted to the heat sink. Air enters through a ventilation hole at one end of the housing assembly, passes through the heat dissipation cavity, and exits through a ventilation hole at the other end. After entering the heat dissipation cavity, the air carries away the heat from the heat sink, achieving efficient heat dissipation, thereby extending the lifespan of the luminaire, reducing light decay, and maintaining stable luminous efficacy. Simultaneously, this solution utilizes natural airflow for heat dissipation, eliminating the need for fans or additional heat sinks, thus maintaining a compact structure and a slim luminaire. The heat sink separates the heat dissipation cavity from the mounting cavity, ensuring that airflow is confined within the heat dissipation cavity while maintaining good airtightness in the mounting cavity. This prevents dust and insects from the external environment from entering the mounting cavity and affecting the luminaire's lighting effect. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the high-efficiency heat dissipation lamp in an embodiment of the present invention. Figure 1 ;

[0021] Figure 2 This is a three-dimensional structural diagram of the high-efficiency heat dissipation lamp in an embodiment of the present invention. Figure 2 ;

[0022] Figure 3 This is a three-dimensional cross-sectional view of the high-efficiency heat dissipation lamp in the embodiment of the present invention. Figure 1 ;

[0023] Figure 4 This is a three-dimensional cross-sectional view of the high-efficiency heat dissipation lamp in the embodiment of the present invention. Figure 2 ;

[0024] Figure 5 This is a planar sectional view of the high-efficiency heat dissipation lamp in an embodiment of the present invention;

[0025] Figure 6 The explosion of the high-efficiency heat dissipation lamp in the embodiment of this utility model. Figure 1 ;

[0026] Figure 7 The explosion of the high-efficiency heat dissipation lamp in the embodiment of this utility model. Figure 2 ;

[0027] Figure 8 This is a three-dimensional structural diagram of the heat dissipation component in an embodiment of the present invention.

[0028] The reference numerals in the attached drawings are as follows: housing assembly 100; light-emitting element 200; ventilation hole 300; mounting cavity 400; heat sink 1; mounting plate 11; stepped portion 12; extension portion 13; boss portion 131; heat dissipation surface 132; baffle 14; abutment portion 141; heat dissipation cavity 2; first part 21; second part 22; upper cover plate 3; first ventilation hole 31; lower cover plate 4; second ventilation hole 41; frame component 5; upper light-emitting element 6; lower light-emitting element 7; first mounting cavity 8; second mounting cavity 9; upper light-transmitting element 15; lower light-transmitting element 16; gasket 17. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0031] In the description of this utility model, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] The specific implementation of this utility model is as follows:

[0033] like Figures 1-8 As shown, this utility model provides a high-efficiency heat dissipation lamp, including a housing assembly 100, a heat dissipation structure, and at least one light-emitting element 200; the heat dissipation structure includes a heat sink 1 and ventilation holes 300. The heat sink 1 is disposed in the housing assembly 100 and divides the interior of the housing assembly 100 into a heat dissipation cavity 2 and at least one mounting cavity 400. The light-emitting element 200 is disposed on the heat sink 1 and located in the mounting cavity 400; the ventilation holes 300 are provided on both the upper and lower end faces of the housing assembly 100, and the ventilation holes 300 are all connected to the heat dissipation cavity 2. The heat dissipation structure is configured such that the heat of the light-emitting element 200 is conducted to the heat sink 1 and carried away by the air flowing in the ventilation holes 300 and the heat dissipation cavity 2.

[0034] This solution employs air-cooled heat dissipation. The light-emitting element 200 is mounted on the heat sink 1, and the heat generated by the light-emitting element 200 during operation is conducted to the heat sink 1. Air enters from the ventilation hole 300 at one end of the housing assembly 100, passes through the heat dissipation cavity 2, and exits from the ventilation hole 300 at the other end. After entering the heat dissipation cavity 2, the air carries away the heat from the heat sink 1, achieving efficient heat dissipation, thereby extending the lifespan of the lamp, reducing light decay, and maintaining stable luminous efficacy. Simultaneously, this solution utilizes the effect of natural airflow for heat dissipation, eliminating the need for fans or increasing the number of heat sinks, thus maintaining a compact structure and a thin lamp. The heat sink 1 separates the heat dissipation cavity 2 from the mounting cavity 400, ensuring that airflow is confined within the heat dissipation cavity 2. The mounting cavity 400 maintains good airtightness, preventing dust and insects from the external environment from entering the mounting cavity 400 and affecting the lighting effect of the lamp.

[0035] Specifically, such as Figures 5-8 As shown, the heat sink 1 is made of metal, specifically a metal with high thermal conductivity, and aluminum is used in this embodiment. The heat sink 1 is generally disc-shaped, including a mounting plate 11 located at the center, a vertical stepped portion 12 located at the outer edge of the mounting plate 11, and an extension portion 13 extending horizontally outward from the upper end of the stepped portion 12. A baffle 14 extends downward from the outer edge of the extension portion 13, and an abutment portion 141 is provided at the lower end of the baffle 14. The abutment portion 141 has an inward flange. The extension portion 13 includes a boss portion 131, which is located between the middle and the outer edge of the extension portion 13. The boss portion 131 protrudes upward from the extension portion 13 in the vertical direction. The mounting plate 11, the stepped portion 12, the extension portion 13, the baffle 14, the abutment portion 141, and the boss portion 131 are all annular, and the entire heat sink 1 is integrally formed.

[0036] like Figures 3-7 As shown, the housing assembly 100 includes an upper cover plate 3, a lower cover plate 4, a frame member 5, and a light-transmitting member. The frame member 5 is hollow, forming an accommodating space. The heat dissipation member 1 and the light-transmitting member are disposed in the accommodating space. The upper cover plate 3 and the lower cover plate 4 are connected to the heat dissipation member 1 to form the housing of the lamp. Both the upper cover plate 3 and the lower cover plate 4 are provided with ventilation holes 300. The ventilation holes 300 on the upper cover plate 3 are first ventilation holes 31, and the ventilation holes 300 on the lower cover plate 4 are second ventilation holes 41. There are several first ventilation holes 31 and several second ventilation holes 41, and the several first ventilation holes 31 and second ventilation holes 41 are evenly distributed circumferentially. The lower housing is connected to the mounting plate 11. In this embodiment, a rotating snap-fit ​​method is used. After inserting the upward protruding snap-fit ​​block on the lower housing into the snap-fit ​​groove opened on the mounting plate 11, the lower housing is rotated to make the snap-fit ​​block snap onto the mounting plate 11. The upper housing and the extension 13 are fixedly connected by screws.

[0037] There are several light-emitting elements 200, which are divided into two groups: an upper light-emitting element 6 and a lower light-emitting element 7, each facing in a vertical direction. There are two mounting cavities 400: a first mounting cavity 8 and a second mounting cavity 9. The lower light-emitting element 7 is located in the first mounting cavity 8, and the upper light-emitting element 6 is located in the second mounting cavity 9. The light-transmitting element includes an upper light-transmitting element 15 and a lower light-transmitting element 16. The lower light-transmitting element 16 is located at the lower part of the housing assembly 100, and the upper light-transmitting element 15 is located at the upper part of the housing assembly 100 and near the outer edge of the housing assembly 100. The outer surfaces of the upper cover plate 3, the upper light-transmitting element 15, the frame member 5, the lower light-transmitting element 16, and the lower cover plate 4 constitute the outer surface of the lamp housing. The heat sink 1 is in the following state within the housing assembly 100:

[0038] The lower end of the stepped portion 12 abuts against the lower light-transmitting element 16, the inner edge of the protrusion portion 131 abuts against the upper light-transmitting element 15, a washer 17 is provided between the outer edge of the extension portion 13 and the upper light-transmitting element 15 and abuts against it, and the abutting portion 141 abuts against the lower light-transmitting element 16; therefore, the heat dissipation cavity 2 is formed below the upper cover plate 3, above the lower cover plate 4, above the extension portion 13, and inside the stepped portion 12 and the protrusion portion 131; a first mounting cavity 8 is formed above the lower light-transmitting element 16, below the extension portion 13, outside the stepped portion 12, and inside the baffle 14; and a second mounting cavity 9 is formed below the upper light-transmitting element 15 and above the protrusion portion 131. The mounting plate 11 has several through holes to allow the second ventilation hole 41 to communicate with the heat dissipation cavity 2.

[0039] Of course, the extension 13 may not have a boss 131, allowing the upper light-transmitting member 15 to extend downwards to abut against the middle of the extension 13, which can also separate two mounting cavities 400.

[0040] In addition to its heat dissipation and installation functions, the heat sink 1 also serves to partition space. The luminaire has light-emitting elements 200 in two directions, requiring only one heat dissipation structure to achieve simultaneous heat dissipation—a clever and efficient solution. The numerous ventilation holes 300 provide excellent airflow even when small, while also preventing insects from entering the luminaire.

[0041] Furthermore, the heat dissipation cavity 2 is divided into a first part 21 and a second part 22 along the vertical direction. Specifically, the part above the upper extension 13 is the first part 21, and the part inside the stepped part 12 is the second part 22. The width of the first part 21 is greater than the width of the second part 22. The first ventilation hole 31 is close to the first part 21, and the second ventilation hole 41 is close to the second part 22. In the horizontal direction, the first ventilation hole is closer to the edge of the housing assembly 100 than the second ventilation hole 41, that is, the diameter of the first ventilation hole 31 is greater than the diameter of the second ventilation hole 41. The first ventilation hole 31 is located near the outer edge of the first part 21, and the second ventilation hole 41 is located near the outer edge of the first part 21. The vent 41 is located near the center of the second part 22; the extension 13 has a heat dissipation surface 132 facing the first part 21, so the air flow is not straight up and down, but has a horizontal flow path, that is, the air will flow through the heat dissipation surface 132, which greatly increases the heat dissipation area, and the airflow can carry away more heat, thus increasing the heat dissipation effect. The light-emitting body 200 is installed on the extension 13, and the heat conduction is direct, which can also further increase the heat dissipation effect; the first ventilation hole 31 and the second ventilation hole 41 determine the position of airflow in and out. The distance between the two is large, and the air flow path is long, that is, the area of ​​airflow is increased, thereby improving the heat dissipation effect.

[0042] In addition, the lamp may also consist of only one set of light-emitting elements 200 and mounting cavity 400.

Claims

1. A high-efficiency heat dissipation lamp, characterized in that: The device includes a housing assembly, a heat dissipation structure, and at least one light-emitting element. The heat dissipation structure includes a heat sink and ventilation holes. The heat sink is disposed in the housing assembly and divides the interior of the housing assembly into a heat dissipation cavity and at least one mounting cavity. The light-emitting element is disposed on the heat sink and located in the mounting cavity. The ventilation holes are provided on both the upper and lower end faces of the housing assembly, and the ventilation holes are all connected to the heat dissipation cavity. The heat dissipation structure is configured such that the heat from the light-emitting element is conducted to the heat sink and carried away by the air flowing in the ventilation holes and the heat dissipation cavity.

2. The high-efficiency heat dissipation lamp according to claim 1, characterized in that: The heat dissipation cavity is divided into a first part and a second part in the vertical direction, and the width of the first part is greater than the width of the second part; the ventilation hole near the first part is the first ventilation hole, and the ventilation hole near the second part is the second ventilation hole. In the horizontal direction, the first ventilation hole is closer to the edge of the housing assembly than the second ventilation hole; the heat dissipation component has an extension that extends in the horizontal direction, and the extension has a heat dissipation surface facing the first part.

3. The high-efficiency heat dissipation lamp according to claim 2, characterized in that: The first ventilation hole is located near the outer edge of the first part, and the second ventilation hole is located near the center of the second part.

4. The high-efficiency heat dissipation lamp according to claim 2, characterized in that: There are several first ventilation holes and several second ventilation holes. These first and second ventilation holes are evenly distributed circumferentially, and the diameter of the distributed first ventilation holes is larger than the diameter of the distributed second ventilation holes.

5. The high-efficiency heat dissipation lamp according to claim 1, characterized in that: The heat sink includes a vertical stepped portion, one end of which abuts against the upper or lower end of the housing assembly, and the other end of which extends horizontally outward with an extension portion that protrudes into the housing assembly and abuts against the other end of the housing assembly.

6. The high-efficiency heat dissipation lamp according to claim 5, characterized in that: There are two mounting cavities, namely a first mounting cavity and a second mounting cavity. The heat dissipation cavity is formed on the inner side of the stepped portion, and the first mounting cavity is formed on the outer side of the stepped portion. The outer edge of the extension abuts against the housing assembly, and the extension abuts against the housing assembly at the middle of the extension. The second mounting cavity is formed between the outer edge and the middle of the extension. The first mounting cavity and the second mounting cavity are both provided with the light-emitting element, and the light-emitting element in the first mounting cavity and the light-emitting element in the second mounting cavity face opposite directions.

7. The high-efficiency heat dissipation lamp according to claim 6, characterized in that: The extension includes a boss portion located between the middle and the outer edge of the extension. The boss portion protrudes vertically from the extension. The stepped portion abuts against the upper or lower end of the housing assembly, and the boss portion abuts against the other end of the housing assembly. A second mounting cavity is formed between the boss portion and the housing assembly.

8. The high-efficiency heat dissipation lamp according to claim 1, characterized in that: The heat sink is made of metal.

9. The high-efficiency heat dissipation lamp according to claim 1, characterized in that: The housing assembly includes an upper cover plate, a lower cover plate, and a light-transmitting element. Both the upper and lower cover plates are provided with ventilation holes. The upper cover plate, the lower cover plate, and the heat dissipation element form the heat dissipation cavity, and the light-transmitting element and the heat dissipation element form the mounting cavity.

10. The high-efficiency heat dissipation lamp according to claim 9, characterized in that: The housing assembly also includes a frame component, which is hollow to form an accommodating space. Heat dissipation components and light-transmitting components are disposed in the accommodating space, and the upper cover plate and lower cover plate are connected to the heat dissipation components.

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