Lamp radiator and lamp

Abstract

A lamp radiator comprises a base plate and a plurality of radiating fins, the base plate comprises a first plate face and a second plate face, the first plate face and the second plate face are arranged on the two sides of the base plate in the thickness direction respectively, the first plate face is used for arranging an illumination module, the radiating fins are arranged on the second plate face, and an airflow channel is formed in the base plate. The first plate face and the second plate face are communicated through the airflow channels, a ventilation interval is formed between every two adjacent cooling fins, and the airflow channels are communicated with at least part of the airflow intervals. The heat dissipation fins on the second plate face increase the contact area of the lamp radiator and airflow, and the heat dissipation effect is improved. The airflow channel can communicate airflow located on one side of the first plate face with airflow located on one side of the second plate face, the chimney effect is formed, the airflow can rapidly take away heat on the heat dissipation fins, the heat dissipation effect is good, the lamp is not prone to high-temperature damage caused by heat accumulation, and the service life is longer.

Description

Technical Field

[0001] The present application relates to the technical field of lighting devices, and in particular to a lamp heat sink and a lamp. Background Art

[0002] As a new type of lighting source, LED lamps have the advantages of energy saving and environmental protection. During the use of lamps, they will generate a certain amount of heat. When this heat accumulates and cannot be released in time, the temperature of the lamp will rise sharply, reducing the service life of the lamp. In severe cases, the performance of the lamp will change under high temperature conditions, which will affect the safety of the lamp beads. Utility Model Content

[0003] The present application provides a lamp heat sink, which can solve the technical problem that the heat of the lamp cannot be released in time, resulting in a reduced service life and affecting the safety of the lamp beads.

[0004] According to one aspect of the present application, a lamp heat sink is provided in an embodiment, comprising a substrate and a plurality of heat dissipating fins, wherein the substrate comprises a first plate surface and a second plate surface, the first plate surface and the second plate surface are respectively arranged on both sides of the thickness direction of the substrate, the first plate surface is used to set a lighting module, the heat dissipating fins are arranged on the second plate surface, an air flow channel is arranged on the substrate, the air flow channel connects the first plate surface and the second plate surface, a ventilation gap is provided between two adjacent heat dissipating fins, and the air flow channel is connected to at least part of the air flow gap.

[0005] In some embodiments, the first panel surface is provided with a first lighting module installation area and a second lighting module installation area, and the air flow channel is located between the first lighting module installation area and the second lighting module installation area.

[0006] In some embodiments, a long hole is provided on the substrate, the long hole forms the airflow channel, and the length direction of the airflow channel intersects with the extension direction of at least part of the ventilation space.

[0007] In some embodiments, the heat dissipation fins are arranged on the substrate along a first direction, and a length direction of the air flow channel intersects with the first direction.

[0008] In some embodiments, two air flow channels are provided, and the two air flow channels are spaced apart along the length direction.

[0009] In some embodiments, the heat dissipation fins are provided with ventilation slots, and the length direction of the ventilation slots intersects with the extension direction of the heat dissipation fins.

[0010] In some embodiments, a long hole is provided on the substrate, the long hole forms the air flow channel, and the length direction of the air flow channel is parallel to the extension direction of the ventilation slot.

[0011] In some embodiments, a plurality of ventilation slots are provided, and the air flow channel overlaps with one of the ventilation slots along the thickness direction of the substrate.

[0012] In some embodiments, the second plate surface is provided with an empty area, the heat sink is not provided in the empty area, and a fixing structure for fixing the junction box assembly is provided on the empty area.

[0013] According to one aspect of the present application, an embodiment provides a lamp, comprising a lighting module and the lamp heat sink described in any of the above embodiments.

[0014] According to the lamp radiator and the lamp of the above embodiment, the first board surface of the substrate is used to set the lighting module, and the second board surface of the substrate is provided with heat dissipation fins. The heat dissipation fins of the second board surface increase the contact area between the lamp radiator and the airflow, thereby improving the heat dissipation effect. The airflow channel can connect the airflow located on one side of the first board surface with the airflow located on one side of the second board surface, forming a chimney effect, and the airflow can quickly take away the heat on the heat dissipation fins, so that the heat dissipation effect is better, the lamp is not easily damaged by high temperature due to heat accumulation, and has a longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional view of an embodiment of the lamp of the utility model;

[0016] Figure 2 This is a three-dimensional view from another angle of an embodiment of the lamp of the utility model;

[0017] Figure 3 A three-dimensional view of an embodiment of a heat sink of the lamp of the utility model;

[0018] Figure 4 The figure is a top view of an embodiment of a heat sink of a lamp of the utility model.

[0019] Reference numerals:

[0020] 1. Base plate; 11. First board surface; 12. Second board surface; 121. Empty area; 122. Fixed structure; 13. Air flow channel; 2. Heat dissipation fins; 21. Ventilation interval; 22. Ventilation slot; 3. First lighting module; 4. Second lighting module; 5. Junction box assembly; 51. Junction box; 52. Bracket; 6. Main frame; 7. Power supply. DETAILED DESCRIPTION

[0021] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0022] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations, and the operation steps involved in each embodiment can also be replaced or adjusted in a sequence in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a certain embodiment and do not mean that the composition and / or sequence are necessary.

[0023] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0024] like Figure 1-Figure 2 As shown, the lamp of the embodiment of the utility model includes a main frame 6, a lighting module, a lamp radiator and a power supply 7. The lighting module is fixedly connected to the lamp radiator, and the lamp radiator is used to release the heat generated by the lighting module. The lamp radiator is movably connected to one side of the main frame 6, and the power supply 7 is arranged on the other side of the main frame 6, and the power supply 7 is used to supply power to the lighting module.

[0025] like Figure 1-Figure 4 As shown, the lamp heat sink includes a substrate 1 and a plurality of heat dissipating fins 2. The substrate 1 includes a first plate surface 11 and a second plate surface 12. The first plate surface 11 and the second plate surface 12 are respectively arranged on both sides of the thickness direction of the substrate 1. The first plate surface 11 is used to set the lighting module, and the heat dissipating fins 2 are arranged on the second plate surface 12.

[0026] Specifically, the substrate 1 and the heat dissipation fins 2 may be an integrated structure or may be connected by welding. The substrate 1 and the heat dissipation fins 2 may be made of metal with high thermal conductivity, such as aluminum or copper.

[0027] The heat generated during the operation of the lighting module can be first transferred to the substrate 1 and then released to the external environment by the heat dissipation fins 2. The provision of multiple heat dissipation fins 2 increases the contact area between the lamp radiator and the air, and the heat dissipation rate is faster and the heat dissipation effect is better.

[0028] The substrate 1 is provided with an airflow channel 13, which connects the first board surface 11 and the second board surface 12. There is a ventilation gap 21 between two adjacent heat dissipation fins 2, and the airflow channel 13 is connected with at least part of the airflow gap. Specifically, a strip hole can be opened on the substrate 1, and the space inside the strip hole is the airflow channel 13. The shape of the airflow channel 13 can also be circular, elliptical, square or other irregular shapes.

[0029] The airflow channel 13 is connected to at least some of the airflow intervals, which can be understood as: multiple heat dissipation fins 2 form multiple ventilation intervals 21, and the airflow channel 13 can be connected to all of the ventilation intervals 21 at the same time, or can be connected to only some of the ventilation intervals 21.

[0030] The airflow channel 13 can connect the airflow on one side of the first panel 11 with the airflow on the side of the second panel 12, forming a chimney effect. The airflow can quickly take away the heat on the heat dissipation fins 2, and the heat dissipation effect is better. The lighting module is not easily damaged due to excessive temperature caused by heat accumulation.

[0031] In some embodiments, Figure 2 As shown, the first panel 11 is provided with a first lighting module installation area and a second lighting module installation area, which are respectively used to install the first lighting module 3 and the second lighting module 4. The airflow channel 13 is located between the first lighting module installation area and the second lighting module installation area.

[0032] Since the first lighting module 3 and the second lighting module 4 both generate heat during operation, the heat is relatively concentrated in the area between the two. Setting the airflow channel 13 in the above-mentioned area can quickly release the accumulated heat to the external environment through the heat dissipation fins 2, which is beneficial to avoid damage to the lighting module due to increased temperature caused by heat accumulation.

[0033] In some embodiments, Figure 2-Figure 4 As shown, the substrate 1 is provided with a long hole, which forms an air flow channel 13 , and the length direction of the air flow channel 13 intersects with the extension direction of at least part of the ventilation space 21 .

[0034] The length direction of the airflow channel 13 intersects with the extension direction of at least part of the ventilation intervals 21, which can be understood as: the airflow channel 13 is connected to multiple ventilation intervals 21 at the same time. For example, the length direction of the airflow channel 13 forms an angle of 90° with the extension direction of the ventilation intervals 21. The above arrangement enables the airflow channel 13 to distribute the airflow located on one side of the first panel 11 to multiple ventilation intervals 21, thereby improving the heat dissipation rate of the lamp radiator.

[0035] The long strip-shaped air flow channel 13 can not only adapt to the space between the first lighting module 3 and the second lighting module 4, but also has a large air flow area, which can improve the heat dissipation rate of the lamp radiator.

[0036] In other embodiments, the length direction of the air flow channel 13 and the extension direction of the ventilation space 21 may also form an angle of 30°, 40°, etc.

[0037] In some embodiments, Figure 1 , Figure 4 As shown, the heat dissipation fins 2 are arranged along the first direction on the substrate 1, and the length direction of the airflow channel 13 intersects the first direction. The above arrangement enables the airflow channel 13 to communicate with the multiple ventilation spaces 21 formed by the heat dissipation fins 2 on the substrate 1, and the heat dissipation rate of the lamp radiator is relatively high.

[0038] In some embodiments, Figure 2-Figure 4 As shown, two airflow channels 13 are provided, and the two airflow channels 13 are arranged at intervals along the length direction. Providing two airflow channels 13 can maximize the wind flow area of ​​the airflow channel 13 while ensuring the structural strength of the substrate 1, thereby improving the heat dissipation rate.

[0039] In other embodiments, the number of the air flow channels 13 may also be one, three, four, six, etc.

[0040] In some embodiments, Figure 3 , Figure 4 As shown, the heat sink 2 is provided with ventilation slots 22, and the length direction of the ventilation slots 22 intersects with the extension direction of the heat sink 2. Specifically, the ventilation slots 22 form a 90° angle with the extension direction of the heat sink 2. Providing the ventilation slots 22 can increase the contact area between the heat sink 2 and the air, strengthen convection, increase the contact time between the air and the heat sink, and thus improve the heat dissipation rate of the lamp radiator.

[0041] In other embodiments, the ventilation slots 22 and the heat dissipation fins 2 may form an angle of 30°, 40°, etc.

[0042] In some embodiments, Figure 2-Figure 4As shown, the substrate 1 is provided with a long hole, which forms an airflow channel 13, and the length direction of the airflow channel 13 is parallel to the extension direction of the ventilation slot 22. In the above arrangement, the airflow channel 13 can guide the airflow on one side of the second plate surface 12 to the ventilation slot 22, and then the ventilation slot 22 distributes the airflow to multiple ventilation intervals 21, so that the heat dissipation effect of the lamp radiator is better.

[0043] In some embodiments, Figure 3 , Figure 4 As shown, a plurality of ventilation slots 22 are provided, and the airflow channel 13 coincides with one of the ventilation slots 22 along the thickness direction of the substrate 1. Specifically, three ventilation slots 22 are provided, and the position of the airflow channel 13 coincides with the position of the ventilation slot 22 located in the middle of the heat dissipation fin 2. The airflow channel 13 can guide the airflow on one side of the second board surface 12 to the ventilation slot 22, and then the airflow flows to the plurality of ventilation intervals 21, the contact area between the airflow and the heat dissipation fin 2 is large, and the heat dissipation effect is better.

[0044] In other embodiments, the number of the ventilation slots 22 may be five, four, six, etc.

[0045] In some embodiments, Figure 1-Figure 4 As shown, the second board surface 12 is provided with an empty area 121, the empty area 121 is not provided with a heat sink, and a fixing structure 122 for fixing the junction box assembly 5 is provided on the empty area 121. Specifically, the junction box assembly 5 includes a junction box 51 and a bracket 52, the fixing structure 122 can be a fixing hole set on the substrate 1, the bracket 52 can include a fixedly connected leg and a board body, the leg and the fixing hole are connected by a fastener, and the junction box is fixed on the board body. Providing the fixing structure 122 can more conveniently fix the junction box assembly 5.

[0046] In some embodiments, the substrate 1 is made of aluminum, and the heat dissipation fins 2 are made of aluminum. Aluminum has a certain structural strength and a high thermal conductivity, and has a high heat dissipation rate when used as a heat sink.

[0047] The lamp heat sink of the embodiment of the utility model is described below.

[0048] The structure of the lamp heat sink in the embodiment of the utility model is the same as the structure of the lamp heat sink in any of the above embodiments, and will not be described again here.

[0049] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. A lamp radiator, characterized in that: It includes a base plate and a plurality of heat dissipation fins, the base plate includes a first plate surface and a second plate surface, the first plate surface and the second plate surface are respectively arranged on both sides of the thickness direction of the base plate, the first plate surface is used to set a lighting module, the heat dissipation fins are arranged on the second plate surface, an air flow channel is arranged on the base plate, the air flow channel connects the first plate surface and the second plate surface, a ventilation gap is provided between two adjacent heat dissipation fins, and the air flow channel is connected with at least part of the air flow gap.

2. The lamp heat sink according to claim 1, characterized in that: The first panel surface is provided with a first lighting module installation area and a second lighting module installation area, and the air flow channel is located between the first lighting module installation area and the second lighting module installation area.

3. The lamp radiator according to claim 1 or 2, characterized in that: The substrate is provided with a long hole, the long hole forms the airflow channel, and the length direction of the airflow channel intersects with the extension direction of at least a part of the ventilation interval.

4. The lamp heat sink according to claim 3, characterized in that: The heat dissipation fins are arranged on the substrate along a first direction, and a length direction of the air flow channel intersects with the first direction.

5. The lamp heat sink according to claim 3, characterized in that: Two air flow channels are provided, and the two air flow channels are spaced apart along the length direction.

6. The lamp heat sink according to claim 1 or 2, characterized in that: The heat dissipation fins are provided with ventilation slots, and the length direction of the ventilation slots intersects with the extension direction of the heat dissipation fins.

7. The lamp heat sink according to claim 6, characterized in that: The substrate is provided with a long hole, the long hole forms the air flow channel, and the length direction of the air flow channel is parallel to the extension direction of the ventilation slot.

8. The lamp heat sink according to claim 7, characterized in that: A plurality of ventilation slots are provided, and the air flow channel overlaps with one of the ventilation slots along the thickness direction of the substrate.

9. The lamp heat sink according to claim 1 or 2, characterized in that: The second plate surface is provided with an empty area, the heat dissipation fins are not provided in the empty area, and a fixing structure for fixing the junction box assembly is provided on the empty area.

10. A lamp, characterized in that: include: Lighting module; A lamp heat sink as claimed in any one of claims 1 to 9.

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