Lamp holder assembly

Abstract

The utility model provides a lamp holder assembly. The lamp holder assembly comprises a shell, a base, a light source and a heat sink structure. The base is located in the shell. The light source is arranged on the base. The heat sink structure is arranged on the base and is in contact with the light source. The housing is divided into an upper housing portion and a lower housing portion. The upper shell part is adjacent to the heat sink structure, and an airflow outlet is formed between the upper shell part and the heat sink structure. The lower shell part is adjacent to the base, and an airflow inlet is formed between the lower shell part and the base. Through the heat sink structure designed in the lamp holder assembly and the airflow inlet and the airflow outlet between the shell and the heat sink structure and between the shell and the base, the lamp holder assembly is cooled through the chimney effect, and therefore the heat exchange capacity between the fin bodies of the heat sink structure and the use environment is improved; and a good heat dissipation effect can still be achieved under the condition that the fin body is shielded by the shell.

Description

Technical Field

[0001] The utility model relates to a lamp cap assembly, in particular to a lamp cap assembly with improved heat exchange capacity with the use environment. Background Art

[0002] In the field of existing high-wattage standing lamp products, a structure with heat dissipation fins is often added. After guiding the heat of the standing lamp product to the heat dissipation fins, heat exchange is performed between the heat dissipation fins and the environment to achieve the effect of heat dissipation. However, the heat dissipation fins of the current standing lamp products are an exposed structure visible to the user from the outside, resulting in poor aesthetics. Moreover, due to the exposed structure of the heat dissipation fins of such products, when dust in the environment falls on the heat dissipation fins, it is likely to cause a decrease in the heat exchange efficiency between the heat dissipation fins and the environment, resulting in a worse heat dissipation effect.

[0003] In view of the above, how to propose an improvement scheme for the problems of the existing technology is the direction that practitioners in this technical field are committed to developing. Summary of the Utility Model

[0004] Therefore, the purpose of the utility model is to provide a lamp cap assembly with improved heat exchange capacity with the use environment to solve the above problems.

[0005] To achieve the above purpose, the utility model provides a lamp cap assembly, including:

[0006] A housing;

[0007] A base, located inside the housing;

[0008] A light source, arranged on the base; and

[0009] A heat sink structure, arranged on the base and in contact with the light source;

[0010] Wherein, the housing is divided into an upper housing part and a lower housing part; the upper housing part is adjacent to the heat sink structure, and an air flow outlet is formed between the upper housing part and the heat sink structure; the lower housing part is adjacent to the base, and an air flow inlet is formed between the lower housing part and the base.

[0011] Preferably, the heat sink structure includes a plurality of fin bodies, and the plurality of fin bodies are arranged on the base at intervals.

[0012] Further preferably, the plurality of fin bodies extend along a predetermined direction and are arranged parallel to each other.

[0013] Further preferably, it further includes a support member, the support member is connected to the housing or the base and has a connection direction, wherein the connection direction is the same as the predetermined direction.

[0014] Further preferably, the plurality of fin bodies are arranged radially based on the center of the light source.

[0015] Further preferably, at least one of the plurality of fin bodies has a notch.

[0016] Preferably, in a top view direction, at least a part of the heat sink structure overlaps with the projection of the housing, and the housing has a top view overlapping area.

[0017] Further preferably, the top view overlapping area is included in the upper housing part.

[0018] Preferably, in a side view direction, at least a part of the heat sink structure overlaps with the projection of the housing, and the housing has a side view overlapping area, and the side view overlapping area is included in the lower housing part.

[0019] Preferably, the light source includes two lamp boards, and a first part of the heat sink structure is disposed between the two lamp boards.

[0020] Further preferably, the two lamp boards are an upper lamp board and a lower lamp board, the heat sink structure is located above the lower lamp board, and a second part of the heat sink structure surrounds the upper lamp board.

[0021] Preferably, in a side sectional view, the upper housing part and the lower housing part together form a curved outer shape.

[0022] Compared with the prior art, the lamp head assembly provided by the present utility model includes a housing, a base, a light source, and a heat sink structure. The base is located inside the housing. The light source is disposed on the base. The heat sink structure is disposed on the base and is in contact with the light source. The housing is divided into an upper housing part and a lower housing part. The upper housing part is adjacent to the heat sink structure, and an air flow outlet is formed between the upper housing part and the heat sink structure. The lower housing part is adjacent to the base, and an air flow inlet is formed between the lower housing part and the base. Through the heat sink structure designed inside the lamp head assembly, and the air flow inlets and outlets between the housing and the heat sink structure and the base, the chimney effect is utilized to dissipate heat from the lamp head assembly, so as to improve the heat exchange capacity between the fin body of the heat sink structure and the use environment, and still have a good heat dissipation effect even when the fin body is shielded by the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1A is an exploded schematic view of a lamp head assembly according to an embodiment of the present utility model.

[0024] Figure 1B is a three-dimensional structural schematic view of a lamp head assembly according to an embodiment of the present utility model

[0025] Figure 2 is a partial three-dimensional structural schematic view of a lamp head assembly according to an embodiment of the present utility model.

[0026] Figure 3 is a sectional structural schematic view of a lamp head assembly according to an embodiment of the present utility model.

[0027] Figure 4 This is a schematic diagram of the parts of the heat sink structure included in the lamp cap assembly according to an embodiment of the present utility model. Detailed implementation manners

[0028] In order to further understand the purpose, structure, features and functions of the present utility model, the following is a detailed description in conjunction with the embodiments.

[0029] In the description and claims, certain terms are used to refer to specific elements. Those with ordinary knowledge in the relevant field should understand that manufacturers may use different terms to refer to the same element. The description and claims of this specification do not use the difference in names as a way to distinguish elements, but use the difference in functions of elements as the criterion for distinction. The term "comprising" mentioned throughout the description and claims is an open term, and should be interpreted as "including but not limited to".

[0030] The ordinal numbers used in the description, such as "first", "second", "third", etc., are used to modify elements. They do not imply or represent any previous ordinal numbers of the elements themselves, nor do they represent the order of one element and another element, or the order in the manufacturing method. The use of these ordinal numbers is only to clearly distinguish an element with a certain name from another element with the same name.

[0031] Please refer to Figures 1A to 1B 、 Figure 2 and Figure 3 , wherein, Figure 1A This is an exploded schematic diagram of the lamp cap assembly 100 according to an embodiment of the present utility model, Figure 1B is a three-dimensional structure schematic diagram of the lamp cap assembly 100, Figure 2 is a partial three-dimensional structure schematic diagram of the lamp cap assembly 100, and Figure 3 is a sectional structure schematic diagram of the lamp cap assembly 100.

[0032] The lamp head assembly 100 can be applied to, for example, a floor lamp. The lamp head assembly 100 includes a housing 110, a base 120, a light source 130, and a heat sink structure 140. The base 120 is located within the housing 110. The light source 130 is disposed on the base 120. The heat sink structure 140 is disposed on the base 120 and is in contact with the light source 130 to absorb the heat emitted by the light source 130 for heat dissipation. The heat sink structure 140 may have a notch 140N to provide the possibility of the flow of air currents in other directions, thereby increasing the heat dissipation efficiency. The light source 130 may be in the form of a lamp board, for example, including an upper lamp board 131 and a lower lamp board 132. The upper lamp board 131 and the lower lamp board 132 are arranged back to back, and the light emitting directions are opposite, that is, they project light upward and downward respectively. In this embodiment, the upper lamp board 131 and the lower lamp board 132 are LED lamp boards with a circular appearance; in other embodiments, the upper lamp board 131 and the lower lamp board 132 may also be other shapes, such as LED lamp boards with a rectangular appearance. In this embodiment, the projection of the upper lamp board 131 in the top view direction falls within the range of the lower lamp board 132. The upper lamp board 131 can be fixed in a support ring member 160 and is disposed on the first part of the heat sink structure 140, and the second part of the heat sink structure 140 can surround the outer periphery of the first part and the upper lamp board 131. Among them, the first part and the second part of the heat sink structure 140 are thermally connected, and preferably, they can be integrally formed. In other embodiments, the upper lamp board 131 and the support ring member 160 are respectively fixedly disposed on the heat sink structure 140. The lower lamp board 132 can be fixed on the base 120 and is disposed under the heat sink structure 140, that is, the heat sink structure 140 can be located above the lower lamp board 132; in other embodiments, the lower lamp board 132 and the base 120 are respectively fixed on the heat sink structure 140. In other words, there is a spacing between the upper lamp board 131 and the lower lamp board 132 to allow the first part of the heat sink structure 140 to be disposed therebetween and simultaneously contact the upper lamp board 131 and the lower lamp board 132 to absorb the heat generated by the light emitting components on the upper lamp board 131 and the lower lamp board 132. In other embodiments, the heat sink structure 140 may further include upper and lower layers. The first part of the upper layer heat sink structure is disposed below the upper lamp board 131, and the first part of the lower layer heat sink structure is disposed above the lower lamp board 132. The first part of the upper layer heat sink structure is in contact with the first part of the lower layer heat sink structure, and the second part of the upper layer heat sink structure is in contact with the second part of the lower layer heat sink structure. In this way, the upper lamp board 131, the upper layer heat sink structure, and the support ring member 160 can be assembled to form an upper lamp module, and the lower lamp board 132, the lower layer heat sink structure, and the base 120 can be assembled to form a lower lamp module, and then further assembled into an integral body, which can fully ensure that both the upper lamp board 131 and the lower lamp board 132 are in full thermal contact with the heat sink structure 140 and is also convenient for assembly operations.

[0033] In addition, the lamp head assembly 100 may further include a support member 150. In this embodiment, the support member 150 is connected to the housing 110 and has a connection direction (parallel to the coordinate X-axis). Alternatively, in other embodiments, the support member 150 may also be connected to the base 120 and have a connection direction (parallel to the coordinate X-axis). Alternatively, in other embodiments, the support member 150 may also be connected to the support ring member 160, and the present invention is not limited thereto.

[0034] The housing 110 can be divided into an upper housing portion 110U and a lower housing portion 110L, for example, along Figure 3 the boundary line DL shown for distinction. Among them, the upper housing portion 110U corresponds to the top of the lamp head assembly 100, and the lower housing portion 110L corresponds to the side of the lamp head assembly 100. Since the upper housing portion 110U is closer to the heat sink structure 140 than the lower housing portion 110L, during the use of the lamp head assembly 100, its temperature will be higher than that of the lower housing portion 110L. Correspondingly, in general usage scenarios, users have less chance of touching the top of the floor lamp product, but are more likely to touch the side of the floor lamp product. Therefore, the distinction between the upper housing portion 110U (higher temperature) and the lower housing portion 110L (lower temperature) can prevent users from being scalded by the lamp head assembly 100.

[0035] As Figure 3 shown in the perspective view, in the side cross-section, the upper housing portion 110U and the lower housing portion 110L together form a curved outer shape. The upper housing portion 110U is adjacent to the heat sink structure 140 and forms an air flow outlet OT therebetween, while the lower housing portion 110L is adjacent to the base 120 and forms an air flow inlet IT therebetween. The air flow outlet OT communicates with the top of the lamp head assembly 100, and the air flow inlet IT communicates with the bottom of the lamp head assembly 100. By the design of the air flow inlet IT and the air flow outlet OT, the air in the usage environment of the lamp head assembly 100 can be introduced from the air flow inlet IT below the lamp head assembly 100, flow along the inner wall of the housing 110 through the heat sink structure 140, and then flow out upward from the air flow outlet OT to take away heat. This heat dissipation mechanism applies the principle of the chimney effect. The heat sources of the light source 130 and the heat sink structure 140 will heat the air between them and the upper housing portion 110U to become hot air and rise, and escape from the air flow outlet OT to the outside of the lamp head assembly 100. The escape of this hot air will drive the cold air in the environment to be introduced from the air flow inlet IT below, thereby cooling the inside of the lamp head assembly 100.

[0036] In terms of the configuration of the heat sink structure 140, as Figure 3 shown, along the top view direction (parallel to the coordinate Z-axis), the heat sink structure 140 at least partially overlaps with the housing 110 in projection and has a top view overlapping area TOA with the housing 110, where the top view overlapping area TOA is included in the upper housing portion 110U. In addition, as Figure 3As shown, in the side view direction (parallel to the coordinate X axis), the heat sink structure 140 at least partially overlaps the projection of the housing 110, and has a side view overlap area SOA with the housing 110, wherein the side view overlap area SOA is included in the lower housing part 110L.

[0037] Please refer again to Figure 4 , which is a schematic diagram of the parts of the heat sink structure 140 included in the lamp head assembly 100.

[0038] The heat sink structure 140 may include a plurality of fin bodies 140FN. The plurality of fin bodies 140FN may be disposed at intervals on the base 120. In this embodiment, the plurality of fin bodies 140FN are the second part surrounding the upper lamp board 131, but the actual application is not limited thereto. The notch 140N of the foregoing heat sink structure 140 may be formed in at least one of the plurality of fin bodies FN, and the number of fin bodies FN having the notch 140N may be set according to actual heat dissipation requirements, and it is not limited that all fin bodies FN must have it. In this embodiment, the plurality of fin bodies 140FN extend in a predetermined direction (parallel to the coordinate X axis) and are arranged parallel to each other. That is to say, in this embodiment, the predetermined direction in which the fin body 140FN extends is the same as the connection direction of the foregoing support member 150 to the housing 110 or the base 120. Further, the design that the predetermined direction in which the fin body 140FN extends is the same as the connection direction of the foregoing support member 150 to the housing 110 or the base 120 can provide the lamp head assembly 100 with additional anti-bending or drooping support force in the extension direction, but it is not limited thereto. In other embodiments, the plurality of fin bodies 140FN may extend in a predetermined direction (such as parallel to the coordinate Y axis) and are arranged parallel to each other; thus, the predetermined direction in which the fin body 140FN extends is perpendicular to the connection direction of the foregoing support member 150 to the housing 110 or the base 120. In addition, it should be understood that the fin body 140FN is not only limited to extending in the predetermined direction and being arranged parallel to each other. For example, in other embodiments, the plurality of fin bodies 140FN may be arranged radially around the center of the light source 130. In another embodiment, the heat sink structure 140 includes upper and lower layers. Among them, the first part of the upper heat sink structure and the first part of the lower heat sink structure both extend along the XY plane; the second part of the lower heat sink structure includes a plate body and a plurality of fin bodies FN. The plate body is an extension of the first part of the lower heat sink structure along the XY plane; the second part of the upper heat sink structure also includes a plate body and a plurality of fin bodies FN. The plate body is an extension of the first part of the upper heat sink structure, and the plate body can be superposed and contacted with the plate body of the lower heat sink structure and extend between the fin bodies of the lower heat sink structure. The upper heat sink structure and the lower heat sink structure can be provided with a fixing structure through the notch 140, such as being fixedly connected by screwing, and the present invention is not limited thereto. To sum up, the lamp head assembly provided by the present invention includes a housing, a base, a light source, and a heat sink structure. The base is located inside the housing. The light source is disposed on the base. The heat sink structure is disposed on the base and is in contact with the light source. The housing is divided into an upper housing part and a lower housing part. The upper housing part is adjacent to the heat sink structure, and an air flow outlet is formed between the upper housing part and the heat sink structure. The lower housing part is adjacent to the base, and an air flow inlet is formed between the lower housing part and the base.Through the heat sink structure designed inside the lamp cap assembly, as well as the air inlet and outlet between the housing and the heat sink structure and the base, the chimney effect is utilized to dissipate heat from the lamp cap assembly, thereby enhancing the heat exchange capacity between the fin body of the heat sink structure and the use environment, and still having a good heat dissipation effect even when the fin body is shielded by the housing. In addition, the distinction between the upper housing part and the lower housing part of the housing also has the effect of preventing users from being scalded by the lamp cap assembly.

[0039] The present utility model has been described by the above related embodiments. However, the above embodiments are only examples for implementing the present utility model. It must be pointed out that the disclosed embodiments do not limit the scope of the present utility model. On the contrary, modifications and refinements made without departing from the spirit and scope of the present utility model fall within the scope of patent protection of the present utility model.

Claims

1. A lamp cap assembly, characterized in that: include: case; A base, located inside the shell; A light source is disposed on the base; as well as A heat sink structure, disposed on the base and in contact with the light source; The shell is divided into an upper shell part and a lower shell part; the upper shell part is adjacent to the heat sink structure and forms an air flow outlet with the heat sink structure; the lower shell part is adjacent to the base and forms an air flow inlet with the base.

2. The lamp cap assembly according to claim 1, characterized in that: The heat sink structure comprises a plurality of fin bodies, and the plurality of fin bodies are arranged on the base at intervals.

3. The lamp cap assembly according to claim 2, characterized in that: The plurality of fin bodies extend along a predetermined direction and are arranged parallel to each other.

4. The lamp cap assembly according to claim 3, characterized in that: It also includes a support member, which is connected to the shell or the base and has a connection direction, wherein the connection direction is the same as the predetermined direction.

5. The lamp cap assembly according to claim 2, characterized in that: The plurality of fin bodies are radially arranged based on the center of the light source.

6. The lamp cap assembly according to claim 2, characterized in that: At least one of the plurality of fin bodies has a notch.

7. The lamp cap assembly according to claim 1, characterized in that: In a top-view direction, the heat sink structure at least partially overlaps with the projection of the shell, and has a top-view overlapping area on the shell.

8. The lamp cap assembly according to claim 7, characterized in that: The top view overlapping area is included in the upper housing portion.

9. The lamp cap assembly according to claim 1, characterized in that: Along the side view direction, the heat sink structure at least partially overlaps with the projection of the shell, and there is a side view overlapping area on the shell, and the side view overlapping area is included in the lower shell portion.

10. The lamp cap assembly according to claim 1, characterized in that: The light source comprises two lamp boards, and the first part of the heat sink structure is arranged between the two lamp boards.

11. The lamp cap assembly according to claim 10, characterized in that: The two lamp boards are an upper lamp board and a lower lamp board, the heat sink structure is located on the lower lamp board, and the second part of the heat sink structure surrounds the upper lamp board.

12. The lamp cap assembly according to claim 1, characterized in that: In a side cross-sectional view, the upper shell portion and the lower shell portion together form a curved shape.

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