Point light source
By separating and setting the light source module of the point light source from the driving module and forming a heat dissipation space in the shell, the problems of large volume and poor waterproof performance in the prior art are solved, and efficient heat dissipation and miniaturization design are achieved, while improving waterproof performance.
Patent Information
- Application Number
- CN202422150134.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-09-03
AI Technical Summary
While improving the heat dissipation performance, existing point light sources are large in size and poor in waterproofing, making it difficult to meet the needs of efficient heat dissipation and waterproofing.
A point light source is designed, by separating the light source module and the driving module, and forming a heat dissipation space in the shell, so that the two modules can dissipate heat independently; at the same time, the open end of the shell is connected through the fixing plate and the back cover to form a heat dissipation space through the fixing plate, reducing the volume of the point light source and improving waterproof performance.
It realizes efficient heat dissipation and miniaturization of point light sources, while improving waterproof performance and reducing the risk of point light sources damage.
Smart Images
Figure CN222963837U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of light-emitting components, in particular to a point light source. Background Art
[0002] A point light source is a kind of LED lighting technology with high customizability. This kind of lamp is built-in with an LED light source and can emit various colors according to needs. Through the built-in microprocessor and programming control, the point light source can achieve rich and colorful light effects, such as dynamic effects like gradual change, jump change, scanning, and flowing water. Multiple point light sources can also form a pixel array to form a unique display screen. This display screen can display various patterns, texts, and even animations and video content. Since it can still maintain a good visual effect when viewed from a long distance, the point light source is particularly suitable for large outdoor advertising displays. In the prior art, the lamp-driver separation method is usually adopted to improve the heat dissipation of the point light source. However, after the lamp-driver separation design, the volume of the point light source becomes large, and at the same time, it brings a huge challenge to the waterproof performance of the point light source. Content of the Utility Model
[0003] The purpose of the utility model is to provide a point light source, aiming to reduce the space volume occupied by the point light source and improve the waterproof performance while improving the heat dissipation performance of the point light source.
[0004] To achieve this purpose, the utility model adopts the following technical solutions:
[0005] A point light source includes a light source module, a driving module, a housing, and a rear cover;
[0006] One end of the housing is provided with a light-transmitting cover, and the other end forms an opening. The light source module is electrically connected to the driving module. Both the light source module and the driving module are arranged inside the housing. The light source module is arranged close to the light-transmitting cover; the driving module is arranged close to the opening of the housing; a heat dissipation space is formed between the light source module and the driving module;
[0007] The housing is used to be installed and fixed on a fixing plate of the point light source. The open end of the housing passes through the fixing plate and is connected to the rear cover, so that the heat dissipation space penetrates through the fixing plate.
[0008] In one embodiment, the outer periphery of the housing is provided with first heat dissipation fins. The end face of the first heat dissipation fins close to the open end of the housing abuts against the fixing plate; the first heat dissipation fins cooperate with the rear cover to fix the point light source on the fixing plate.
[0009] In one embodiment, the bottom surface of the rear cover is attached to the driving module through a heat-conducting medium, and second heat dissipation fins are further arranged outside the rear cover, so that the driving module dissipates heat through the second heat dissipation fins.
[0010] In one embodiment, a first sealing ring is further provided at the connection between the outer shell and the light-transmitting cover.
[0011] In one embodiment, the rear cover is threadedly connected to the outer shell.
[0012] In one embodiment, the outer shell has a first accommodating portion and a second accommodating portion that communicate with each other. The cross-section of the first accommodating portion is larger than that of the second accommodating portion. The light source module has a plurality of LED lamp beads, and the light source module is placed in the first accommodating portion. The driving module is placed in the second accommodating portion.
[0013] In one embodiment, the external dimensions of the first heat dissipation fins are the same as those of the outer shell.
[0014] Compared with the prior art, the present utility model has the following beneficial effects:
[0015] In the technical solution of the present utility model, by separating the light source module and the driving module, there are usually a plurality of LED lamp beads that generate heat on the light source module; there is usually a driving chip that is prone to heat generation on the driving module. Therefore, by separating the light source module and the driving module, the two modules dissipate heat independently, reducing the excessive accumulation of heat and improving the heat dissipation performance of the point light source.
[0016] Furthermore, the open end of the outer shell passes through the fixing plate and is connected to the rear cover, so that the heat dissipation space formed between the light source module and the driving module passes through the fixing plate, and the thickness of the outer shell coincides with that of the fixing plate, reducing the occupation of the height of the light-emitting space by the point light source and improving the light-emitting effect of the point light source.
[0017] Furthermore, usually, waterproof treatment needs to be performed on the point light source. The positions that need to be waterproofed are the connection between the light-transmitting cover and the outer shell and the connection between the outer shell and the rear cover. In the technical solution of the present application, the connection between the light-transmitting cover and the outer shell is located outside the fixing plate, and the connection position between the outer shell and the rear cover is provided on the back side of the fixing plate. It can be understood that the fixing plate has a waterproof protection effect on the components on its back side. Since the driving module is arranged at the connection position between the outer shell and the rear cover, if the driving module is eroded by water vapor, it is very easy to cause damage to the point light source. Therefore, arranging the connection position between the outer shell and the rear cover on the back side of the fixing plate also improves the waterproof performance of the point light source and reduces the risk of damage to the point light source. Description of the Drawings
[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0019] The structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical substantive significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention.
[0020] Figure 1 It is a schematic structural diagram of an embodiment of the present invention;
[0021] Figure 2 It is a schematic cross-sectional view of an embodiment of the present invention;
[0022] Figure 3 It is an exploded schematic diagram of an embodiment of the present invention;
[0023] Figure 4 It is an exploded schematic diagram of another embodiment of the present invention;
[0024] Illustration: 100, point light source; 110, light source module; 120, driving module; 130, housing; 131, first heat dissipation fin; 130a, first receiving portion; 130b, second receiving portion;
[0025] 140, light-transmitting cover; 150, rear cover; 151, second heat dissipation fin; 160, first sealing ring; 200, fixing plate. Detailed implementation manners
[0026] To make the technical objectives, features, and advantages of the present invention more obvious and understandable, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present invention.
[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component present at the same time.
[0028] The technical solution of the present utility model will be further described below with reference to the drawings and through specific embodiments.
[0029] An embodiment of the present utility model provides a point light source 100. It should be noted that the point light source 100 usually needs to be fixed on a fixing plate to form different types of lighting products, such as light-emitting characters, architectural decorations, advertising decorations, light-emitting signs, etc. If the above-mentioned point light source 100 is too large in volume and too high in height, the lighting effect of the point light source 100 will be poor, and the area of the soft shadow at the edge will be large, resulting in a blurred lighting pattern.
[0030] Please refer to Figure 1 、 Figure 2 、 Figure 3 , in an embodiment of the present utility model, the point light source 100 includes a light source module 110, a driving module 120, a housing 130, and a rear cover 150;
[0031] One end of the housing 130 is provided with a light-transmitting cover 140, and the other end forms an opening. The light source module 110 is electrically connected to the driving module 120. Both the light source module 110 and the driving module 120 are disposed inside the housing 130, and the light source module 110 is disposed close to the light-transmitting cover 140; the driving module 120 is disposed close to the opening of the housing 130; a heat dissipation space is formed between the light source module 110 and the driving module 120;
[0032] The housing 130 is used to be installed and fixed on the fixing plate of the point light source 100. The open end of the housing 130 passes through the fixing plate and is connected to the rear cover 150, so that the heat dissipation space penetrates through the fixing plate.
[0033] It can be understood that in the technical solution of the present utility model, by separating the light source module 110 and the driving module 120, a plurality of LED lamp beads that usually generate heat are usually provided on the light source module 110; a driving chip that is prone to heat generation is usually provided on the driving module 120; therefore, by separating the light source module 110 and the driving module 120, the two modules dissipate heat independently, reducing the excessive accumulation of heat and improving the heat dissipation performance of the point light source 100.
[0034] Further, the open end of the housing 130 is passed through the fixing plate and connected to the rear cover 150, so that the heat dissipation space formed between the light source module 110 and the driving module 120 passes through the fixing plate, and the thickness of the housing 130 coincides with that of the fixing plate, reducing the occupation of the height of the light emitting space by the point light source 100 and improving the light emitting effect of the point light source 100.
[0035] Further, generally, waterproof treatment needs to be performed on the point light source 100. The positions that need to be waterproofed are the connection between the light transmissive cover 140 and the housing 130 and the connection between the housing 130 and the rear cover 150. In the technical solution of the present application, the connection between the light transmissive cover 140 and the housing 130 is located outside the fixing plate, and the connection position between the housing 130 and the rear cover 150 is arranged on the back side of the fixing plate. It can be understood that the fixing plate has a waterproof protection effect on the components on its back side. Since the driving module 120 is arranged at the connection position between the housing 130 and the rear cover 150, if the driving module 120 is eroded by water vapor, it is very easy to cause damage to the point light source 100. Therefore, arranging the connection position between the housing 130 and the rear cover 150 on the back side of the fixing plate also improves the waterproof performance of the point light source 100 and reduces the risk of damage to the point light source 100.
[0036] Optionally, the fixing plate can be a PCB board, or a flexible board, a plastic board, etc.
[0037] Optionally, the light transmissive cover 140 and the housing 130 are snap-connected through a snap ring structure.
[0038] Please refer to Figure 1 , in a specific embodiment of the present utility model, a first heat dissipation fin 131 is arranged on the outer periphery of the housing 130, and the end surface of the first heat dissipation fin 131 close to the open end of the housing 130 abuts against the fixing plate; the first heat dissipation fin 131 cooperates with the rear cover 150 to fix the point light source 100 on the fixing plate.
[0039] Optionally, the first heat dissipation fins 131 are annularly arrayed on the outer periphery of the housing 130. It can be understood that the arrangement of the first heat dissipation fins 131 can further improve the heat dissipation performance of the heat dissipation space. The end surface of the first heat dissipation fin 131 close to the open end of the housing 130 abuts against the fixing plate, which can improve the connection stability between the point light source 100 and the fixing plate.
[0040] Please refer to Figure 2 and Figure 4, in a specific embodiment of the present application, the bottom surface of the rear cover 150 is attached to the driving module 120 through a heat-conducting medium, and a second heat dissipation fin 151 is further provided outside the rear cover 150, so that the driving module 120 dissipates heat through the second heat dissipation fin 151.
[0041] It can be understood that the driving module 120 usually has a driving chip that is prone to heat generation. Therefore, the driving module 120 requires relatively high heat dissipation performance. A second heat dissipation fin 151 is further provided outside the rear cover 150, which can improve the heat dissipation performance of the driving module 120. Further, the bottom surface of the rear cover 150 is attached to the driving module 120 through a heat-conducting medium, which can further improve the heat dissipation performance of the driving module 120. When the heat-conducting medium is a liquid or semi-liquid medium such as heat-conducting silica gel, the setting of the heat-conducting medium can also improve the connection stability between the rear cover 150 and the housing 130.
[0042] Such as Figure 2 and Figure 3 As shown in, in a specific embodiment, a first sealing ring 160 is further provided at the connection between the housing 130 and the light-transmitting cover 140 to ensure the sealing between the light-transmitting cover 140 and the housing 130.
[0043] Further, since a second heat dissipation fin 151 is provided outside the rear cover 150, the rear cover 150 is threadedly connected to the housing 130. When the rear cover 150 is installed on the housing 130, an auxiliary tool can be used to cooperate with the second heat dissipation fin 151 to screw the rear cover 150 onto the housing 130.
[0044] Optionally, the rear cover 150 and the housing 130 are snap-connected through a snap ring structure.
[0045] Please refer to Figure 2 , Figure 3 , Figure 4 , in a preferred embodiment, the housing 130 has a first receiving portion 130a and a second receiving portion 130b that communicate with each other. The cross-section of the first receiving portion 130a is larger than the cross-section of the second receiving portion 130b; the light source module 110 has a plurality of LED lamp beads, and the light source module 110 is placed in the first receiving portion 130a; the driving module 120 is placed in the second receiving portion 130b.
[0046] It can be understood that when the cross-section of the first receiving portion 130a is larger than the cross-section of the second receiving portion 130b, the light source module 110 can be provided with a larger number of lamp beads. Therefore, without increasing the volume of the point light source 100, the luminous specification of the point light source 100 is improved.
[0047] Furthermore, on the premise of improving the luminous specification and heat dissipation performance of the point light source 100, the external dimensions of the first heat dissipation fin 131 are the same as those of the housing 130; so as to reduce the volume of the point light source 100.
[0048] As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A point light source, characterized in that: It includes a light source module, a driving module, a housing and a back cover; A light-transmitting cover is disposed at one end of the housing, and an opening is formed at the other end. The light source module is electrically connected to the driving module. The light source module and the driving module are both disposed in the housing. The light source module is disposed close to the light-transmitting cover; the driving module is disposed close to the opening of the housing; a heat dissipation space is formed between the light source module and the driving module; The housing is used to be mounted on a fixing plate that fixes the point light source, and the opening end of the housing passes through the fixing plate and is connected to the back cover, so that the heat dissipation space passes through the fixing plate.
2. The point light source according to claim 1, characterized in that: The outer periphery of the housing is provided with a first heat dissipation fin, and the end surface of the first heat dissipation fin close to the opening end of the housing abuts against the fixing plate; the first heat dissipation fin cooperates with the back cover to fix the point light source on the fixing plate.
3. The point light source according to claim 2, characterized in that: The bottom surface of the rear cover is attached to the driving module via a heat-conducting medium, and a second heat dissipation fin is further arranged outside the rear cover so that the driving module can dissipate heat via the second heat dissipation fin.
4. The point light source according to claim 3, characterized in that: A first sealing ring is also provided at the connection between the shell and the light-transmitting cover.
5. The point light source according to claim 4, characterized in that: The rear cover is threadedly connected to the housing.
6. The point light source according to claim 5, characterized in that: The housing has a first receiving portion and a second receiving portion which are interconnected, and the cross section of the first receiving portion is larger than the cross section of the second receiving portion; the light source module has a plurality of LED lamp beads, and the light source module is placed in the first receiving portion; The driving module is disposed in the second receiving portion.
7. The point light source according to claim 6, characterized in that: The outer dimensions of the first heat dissipation fins are the same as the outer dimensions of the housing.