High-brightness composite linear light source

Abstract

The utility model discloses high brightness composite line light source relates to in the technical field of detection light source. High brightness composite line light source includes base, heat dissipation spare and light emitting component, and base is provided with containing cavity, side opening and light outlet, a plurality of heat dissipation blocks are arranged in sequence interval along the first horizontal direction, and the length direction of heat dissipation block is second horizontal direction, and the heat dissipation groove is formed between the adjacent heat dissipation blocks, and a plurality of heat dissipation grooves all are communicated with side opening arrangement, a plurality of light emitting components all set up in the bottom end of heat conduction plate, and along the first horizontal direction arranged in sequence interval, and light emitting component includes along the first horizontal direction arranged in sequence interval first light emitting spare, second light emitting spare and third light emitting spare, and the heat that light emitting component emits decreases along the first horizontal direction gradient, and the degree of reducing heat local excessive gathering, and the heat that a plurality of light emitting components emits will be transmitted to a plurality of heat dissipation blocks, and avoid the heat to gather in the same heat dissipation block situation simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of detection light source technology, and in particular to a high-brightness composite line light source. Background Technology

[0002] In the field of machine vision, it is usually necessary to use a light source to illuminate the product when inspecting its appearance. Among them, linear light sources are widely used in the inspection process.

[0003] Existing linear light sources typically use large, high-brightness LED beads, with multiple LED beads arranged together to emit linear light. However, because high-brightness LED beads generate a lot of heat during operation, if the spacing between the LED beads is too small, heat can easily accumulate, affecting the normal operation of the LED beads and their lifespan. On the other hand, if the spacing between the LED beads is too large, the intensity of the light emitted by the linear light source cannot be guaranteed, affecting the lighting effect. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a high-brightness composite line light source with high brightness, which can ensure the lighting effect and has a good heat dissipation effect.

[0005] To achieve the above objectives, this utility model provides a high-brightness composite line light source, which includes a base, a heat sink, and a light-emitting component. The base has a receiving cavity, a side opening, and a light-emitting port. The light-emitting port is located at the bottom end of the base, and the side opening is located at the side end of the base. Both the light-emitting port and the side opening communicate with the receiving cavity. The heat sink is disposed within the receiving cavity. The heat sink includes a heat-conducting plate and heat sink blocks. Multiple heat sink blocks are provided, all located at the top of the heat-conducting plate. The multiple heat sink blocks are arranged sequentially at intervals along a first horizontal direction, and the length direction of the heat sink blocks is a second horizontal direction. The first horizontal direction is perpendicular to the second horizontal direction. A light-emitting component includes multiple light-emitting elements. These elements are disposed at the bottom of the heat-conducting plate and arranged at intervals along the first horizontal direction. Each light-emitting element includes a first light-emitting element, a second light-emitting element, and a third light-emitting element arranged at intervals along the first horizontal direction. The brightness of the first light-emitting element is greater than that of the second light-emitting element, and the brightness of the second light-emitting element is greater than that of the third light-emitting element.

[0006] Furthermore, multiple side openings are provided; the multiple side openings are respectively provided on both sides of the base along the second horizontal direction, and are respectively connected to the multiple heat dissipation slots.

[0007] Furthermore, it also includes a cooling fan; the cooling fan is disposed within the receiving cavity, the cooling fan is located above the heat sink, and is oriented towards the heat sink.

[0008] Furthermore, multiple cooling fans are provided and arranged at intervals along the first horizontal direction.

[0009] Furthermore, all of the light-emitting components are located below the center of the heat sink.

[0010] Furthermore, the length of the heat sink along the first horizontal direction is greater than or equal to the length of the light-emitting component along the first horizontal direction.

[0011] Furthermore, it also includes a double freeform Fresnel lens group; the double freeform Fresnel lens group is disposed in the receiving cavity and located below the light-emitting component.

[0012] Furthermore, the inner wall of the receiving cavity is equipped with a limiting groove, and the peripheral edge of the double freeform Fresnel lens group is disposed within the limiting groove.

[0013] Furthermore, the base includes an end plate, a side plate, and a top plate; two end plates are provided, which are arranged opposite to each other and spaced apart along the first horizontal direction; two side plates are provided, which are arranged opposite to each other and spaced apart along the second horizontal direction; a side opening is provided on the side plate; the two side plates are respectively connected to the two end plates; the top plate is connected to the top ends of the two end plates and the side plates, and defines the receiving cavity between the top plate and the two end plates and the side plates.

[0014] Furthermore, the spacing between adjacent light-emitting components is equal, the spacing between the second light-emitting element and the first light-emitting element, and the spacing between the second light-emitting element and the third light-emitting element are equal.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The light brightness emitted by the first light-emitting element is greater than that emitted by the second and third light-emitting elements. The heat generated by the first light-emitting element is greater than that generated by the second and third light-emitting elements. Multiple light-emitting components are spaced apart along the first horizontal direction, which reduces the degree of local heat accumulation. The second and third light-emitting elements are located between two adjacent first light-emitting elements, which supplements the light brightness. The high-brightness composite line light source can emit composite light through the first, second, and third light-emitting elements. The heat generated by the first light-emitting element is greater than that of the second light-emitting element, and the heat generated by the second light-emitting element is greater than that of the third light-emitting element. This causes the heat emitted by the light-emitting components to decrease gradually along the first horizontal direction, thereby further reducing the degree of local excessive heat accumulation.

[0016] 2. Above the heat-conducting plate, multiple heat sinks are arranged at intervals along the first horizontal direction. Because the multiple light-emitting components are arranged at intervals along the first horizontal direction, the heat emitted by the multiple light-emitting components will be transferred upward to the multiple heat sinks, avoiding the situation where heat accumulates on the same heat sink at the same time. The distance between the end of the heat sink along the second horizontal direction and the light-emitting component is relatively large, so that the heat of the heat sink can be transferred along the second horizontal direction, making the heat of the heat sink more uniform and avoiding the local heat accumulation of the heat sink. The side opening is connected to the heat dissipation groove, so that the outside air can enter the heat dissipation groove and contact the groove wall, thereby carrying away the heat of the heat sink and improving the heat dissipation effect. By setting multiple heat sinks, the heat dissipation effect can be further improved. Attached Figure Description

[0017] To more clearly illustrate the technology in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the high-brightness composite line light source of this utility model;

[0019] Figure 2 This is a structural schematic diagram of the high-brightness composite line light source of this utility model from another perspective.

[0020] Figure 3 This is a cross-sectional view of the high-brightness composite line light source of this utility model;

[0021] Figure 4This is a schematic diagram of the light-emitting component of the high-brightness composite line light source of this utility model;

[0022] Figure 5 This is a cross-sectional view of the light-emitting component of the high-brightness composite line light source of this utility model.

[0023] Reference numerals: base 100; receiving cavity 101; side opening 102; light outlet 103; end plate 110; side plate 120; top plate 130; heat sink 200; heat conduction plate 210; heat sink block 220; heat dissipation groove 230; light-emitting component 300; light-emitting assembly 310; first light-emitting component 311; second light-emitting component 312; third light-emitting component 313; cooling fan 400; double freeform surface Fresnel lens group 500. Detailed Implementation

[0024] The technology of this embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments thereof. Based on this embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second", such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0027] Please see Figures 1 to 5This utility model provides a high-brightness composite line light source, which includes a base 100, a heat sink 200, and a light-emitting component 300. The base 100 has a receiving cavity 101, a side opening 102, and a light-emitting port 103. The light-emitting port 103 is located at the bottom of the base 100, and the side opening 102 is located at the side of the base 100. Both the light-emitting port 103 and the side opening 102 communicate with the receiving cavity 101. The heat sink 200 is located within the receiving cavity 101. The heat sink 200 includes a heat-conducting plate 210 and heat sink blocks 220. Multiple heat sink blocks 220 are provided, all located at the top of the heat-conducting plate 210. The multiple heat sink blocks 220 are arranged sequentially at intervals along a first horizontal direction. The length direction of 20 is the second horizontal direction; heat dissipation grooves 230 are defined between adjacent heat dissipation blocks 220, and multiple heat dissipation grooves 230 are all connected to the side opening 102; wherein, the first horizontal direction and the second horizontal direction are perpendicular to each other; the light-emitting component 300 includes multiple light-emitting components 310; multiple light-emitting components 310 are all disposed at the bottom end of the heat-conducting plate 210 and are arranged sequentially at intervals along the first horizontal direction; the light-emitting component 310 includes a first light-emitting element 311, a second light-emitting element 312 and a third light-emitting element 313 arranged sequentially at intervals along the first horizontal direction; the brightness of the first light-emitting element 311 is greater than the brightness of the second light-emitting element 312, and the brightness of the second light-emitting element 312 is greater than the brightness of the third light-emitting element 313.

[0028] The light emitted by the first light-emitting element 311 is brighter than that emitted by the second light-emitting element 312 and the third light-emitting element 313. The heat generated by the first light-emitting element 311 is greater than that generated by the second light-emitting element 312 and the third light-emitting element 313. The multiple light-emitting components 310 are spaced apart along the first horizontal direction, so that the first light-emitting elements 311 of the multiple light-emitting components 310 are spaced apart, reducing the degree of local heat accumulation. The second light-emitting element 312 and the third light-emitting element 313 are located between two adjacent first light-emitting elements 311, which supplements the light brightness. The high-brightness composite line light source can emit composite light through the first light-emitting element 311, the second light-emitting element 312 and the third light-emitting element 313 to ensure the lighting effect. Furthermore, the heat generated by the first light-emitting element 311 is greater than that of the second light-emitting element 312, and the heat generated by the second light-emitting element 312 is greater than that of the third light-emitting element 313, so that the heat emitted by the light-emitting components 310 decreases gradually along the first horizontal direction, thereby further reducing the degree of excessive local heat accumulation.

[0029] Above the heat-conducting plate 210, multiple heat sinks 220 are arranged at intervals along the first horizontal direction. Since multiple light-emitting components 310 are arranged at intervals along the first horizontal direction, the heat emitted by the multiple light-emitting components 310 will be transferred upward to the multiple heat sinks 220, avoiding the situation where heat accumulates on the same heat sink 220. The distance between the end of the heat sink 220 along the second horizontal direction and the light-emitting component 310 is relatively large, so that the heat of the heat sink 220 can be transferred along the second horizontal direction, making the heat of the heat sink 220 more uniform and avoiding the local accumulation of heat in the heat sink 220. The side opening 102 is connected to the heat dissipation groove 230, so that the outside air can enter the heat dissipation groove 230 and contact the groove wall of the heat dissipation groove 230, thereby carrying away the heat of the heat sink 220 and improving the heat dissipation effect. By setting multiple heat sinks 220, the heat dissipation effect can be further improved.

[0030] Specifically, the rated power of the first light-emitting element 311 is greater than that of the second light-emitting element 312, and the rated power of the second light-emitting element 312 is greater than that of the third light-emitting element 313; the color temperatures of the first light-emitting element 311, the second light-emitting element 312, and the third light-emitting element 313 are different from each other, the first light-emitting element 311 is a blue light-emitting structure, the second light-emitting element 312 is a green light-emitting structure, and the third light-emitting element 313 is a red light-emitting structure.

[0031] Reference Figure 1 and Figure 2 In some embodiments of this utility model, multiple side openings 102 are provided; multiple side openings 102 are respectively provided on both sides of the base 100 along the second horizontal direction, and are respectively connected to multiple heat dissipation grooves 230.

[0032] The side openings 102 located at both ends of the base 100 along the second horizontal direction are arranged opposite to each other. The side openings 102 at both ends of the base 100 are respectively connected to the two side slots of the heat dissipation groove 230, so that the outside air can pass through the heat dissipation groove 230 along the second horizontal direction, ensuring smooth air flow and improving heat dissipation efficiency.

[0033] Reference Figure 3 In some embodiments of this utility model, a cooling fan 400 is also included; the cooling fan 400 is connected to the base 100, and the cooling fan 400 is located above the heat sink 220 and is positioned towards the heat sink 220.

[0034] By setting the cooling fan 400 to blow air toward the heat sink 220, the heat dissipation effect can be improved. After the air enters the heat sink 230, it can contact the inner wall of the heat sink 220 and then flow out from the side opening 102.

[0035] Reference Figure 3In some embodiments of this utility model, multiple cooling fans 400 are provided and arranged at intervals along the first horizontal direction.

[0036] By setting multiple cooling fans 400, the heat dissipation efficiency can be improved, and the area of ​​air blowing onto the heat sink 220 can be increased, thus preventing excessive heat accumulation on the heat sink 220.

[0037] Reference Figure 3 and Figure 5 In some embodiments of this utility model, the first light-emitting element 311, the second light-emitting element 312, and the third light-emitting element 313 of the light-emitting component 310 will emit a large amount of heat during operation. The multiple light-emitting components 310 are all located in the lower middle part of the heat sink 200, which allows the heat emitted by the light-emitting component 310 to be transferred upward and evenly to both sides, reducing the degree of excessive heat accumulation, so as to ensure that the heat-conducting plate 210 can be heated evenly.

[0038] Reference Figure 3 In some embodiments of this utility model, the length of the heat sink 200 along the first horizontal direction is greater than or equal to the length of the light-emitting component 300 along the first horizontal direction, so that the light-emitting component 300 can normally dissipate heat to the heat-conducting plate 210.

[0039] Reference Figure 2 and Figure 3 In some embodiments of this utility model, the inner wall of the receiving cavity 101 is limited by a groove, and the peripheral edge of the double freeform Fresnel lens group 500 is disposed in the groove.

[0040] By setting a limiting groove, the position of the double freeform Fresnel lens group 500 within the receiving cavity 101 can be limited, reducing the degree of shaking of the double freeform Fresnel lens group 500 within the receiving cavity 101.

[0041] Reference Figure 2 and Figure 3 In some embodiments of this utility model, a double freeform Fresnel lens group 500 is also included; the double freeform Fresnel lens group 500 is disposed in the receiving cavity 101 and located below the light-emitting component 300.

[0042] Collimation and focusing can be achieved using the double freeform Fresnel lens group 500, generating a linear light spot with extremely high brightness at the object distance; wherein, the double freeform Fresnel lens group 500 is formed by combining two opposing and spaced Fresnel lenses.

[0043] Reference Figure 1 and Figure 2In some embodiments of this utility model, the base 100 includes an end plate 110, a side plate 120, and a top plate 130; two end plates 110 are provided, and are arranged opposite each other and spaced apart along a first horizontal direction; two side plates 120 are provided, and are arranged opposite each other and spaced apart along a second horizontal direction; a side opening 102 is provided on the side plate 120; the two side plates 120 are respectively connected to the two end plates 110; the top plate 130 is connected to the top ends of the two end plates 110 and the side plates 120, and defines a receiving cavity 101 between the top plate 130 and the two end plates 110 and the side plates 120.

[0044] Specifically, the top plate 130 and the side plate 120 can be formed by bending the same sheet metal structure, and the end plate 110 is connected to the top plate 130 and the side plate 120 by a bolt connection structure; a light outlet 103 is defined between the lower parts of the side plate 120 and the end plate 110, and the light-emitting component 300, the heat sink 200 and the cooling fan 400 can be inserted into the receiving cavity 101 from the light outlet 103, and then the double freeform Fresnel lens group 500 is installed at the light outlet 103.

[0045] Reference Figure 5 In some embodiments of this utility model, the spacing between adjacent light-emitting components 310 is equal, so as to ensure the uniformity of light emitted by the light-emitting component 300, avoid local over-lighting or under-lighting, and ensure the lighting effect; and the spacing between any two light-emitting components 310, the first light-emitting element 311 of one light-emitting component 310 and the third light-emitting element 313 of the other light-emitting component 310 are equal, so that the heat emitted by the light-emitting component 300 as a whole is more uniform.

[0046] The interval between the second light-emitting element 312 and the first light-emitting element 311, and the interval between the second light-emitting element 312 and the third light-emitting element 313 are equal, so that the heat emitted by the light-emitting component 310 is more uniform and the degree of excessive heat accumulation is reduced.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A high-brightness composite line light source, characterized in that, include: The base has a receiving cavity, a side opening, and a light emission port; the light emission port is located at the bottom end of the base, the side opening is located at the side end of the base, and both the light emission port and the side opening are connected to the receiving cavity. A heat sink is disposed within the receiving cavity; the heat sink includes a heat-conducting plate and heat sink blocks; multiple heat sink blocks are disposed, all of which are disposed at the top of the heat-conducting plate; the multiple heat sink blocks are arranged sequentially at intervals along a first horizontal direction, and the length direction of the heat sink blocks is a second horizontal direction; heat sink grooves are defined between adjacent heat sink blocks, and the multiple heat sink grooves are all connected to the side opening; Wherein, the first horizontal direction and the second horizontal direction are perpendicular to each other; The light-emitting component includes multiple light-emitting elements; all of the multiple light-emitting elements are disposed at the bottom end of the heat-conducting plate and are arranged sequentially at intervals along the first horizontal direction; each light-emitting element includes a first light-emitting element, a second light-emitting element, and a third light-emitting element arranged sequentially at intervals along the first horizontal direction; the brightness of the first light-emitting element is greater than the brightness of the second light-emitting element, and the brightness of the second light-emitting element is greater than the brightness of the third light-emitting element.

2. The high-brightness composite line light source according to claim 1, characterized in that, The side openings are provided in multiple ways; the multiple side openings are respectively provided on both sides of the base along the second horizontal direction, and are respectively connected to the multiple heat dissipation slots.

3. The high-brightness composite line light source according to claim 1, characterized in that, It also includes a cooling fan; the cooling fan is disposed inside the receiving cavity, the cooling fan is located above the heat sink and is oriented towards the heat sink.

4. The high-brightness composite line light source according to claim 3, characterized in that, Multiple cooling fans are provided and arranged at intervals along the first horizontal direction.

5. The high-brightness composite line light source according to claim 1, characterized in that, All of the light-emitting components are located below the center of the heat sink.

6. The high-brightness composite line light source according to claim 1, characterized in that, The length of the heat sink along the first horizontal direction is greater than or equal to the length of the light-emitting component along the first horizontal direction.

7. The high-brightness composite line light source according to claim 1, characterized in that, It also includes a double freeform Fresnel lens group; the double freeform Fresnel lens group is disposed in the receiving cavity and located below the light-emitting component.

8. The high-brightness composite line light source according to claim 7, characterized in that, The upper limit groove is located on the inner wall of the receiving cavity, and the peripheral edge of the double freeform Fresnel lens group is disposed within the upper limit groove.

9. The high-brightness composite line light source according to claim 1, characterized in that, The base includes an end plate, a side plate, and a top plate; two end plates are provided, which are arranged opposite to each other and spaced apart along the first horizontal direction; two side plates are provided, which are arranged opposite to each other and spaced apart along the second horizontal direction; a side opening is provided on the side plate; the two side plates are respectively connected to the two end plates; the top plate is connected to the top ends of the two end plates and the side plates, and defines the receiving cavity between the top plate and the two end plates and the side plates.

10. The high-brightness composite line light source according to claim 1, characterized in that, The spacing between adjacent light-emitting components is equal, the spacing between the second light-emitting component and the first light-emitting component is equal, and the spacing between the second light-emitting component and the third light-emitting component is equal.

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