Line scan surface light source

Abstract

This invention discloses a line-scan surface light source, relating to the field of light source technology. The line-scan surface light source includes a housing, an illumination component, and a heat dissipation component; multiple light-emitting chips are connected to multiple pins respectively; a control board is located on the side of the lamp board away from the transparent plate and is spaced apart from the board body; a heat dissipation plate is located between the board body and the control board, and abuts against the bottom end of the board body; the heat dissipation plate is provided with through slots, the through slots extending through the top and bottom ends of the heat dissipation plate; multiple pins are respectively inserted through the multiple through slots; a cooling fan is disposed at the first and second through ports, facing the heat dissipation plate. This invention allows the control board to control the individual start and stop of the light-emitting chips, and the control board can control the lamp board to selectively emit visible and invisible light, improving detection efficiency and reducing the detection time. The pins of the lamp board are inserted through the through slots of the heat dissipation plate, and the cooling fan is installed at the first and second through ports, reducing the overall thickness of the line-scan surface light source and its occupied space.

Description

Technical Field

[0001] This invention relates to the field of light source technology, and in particular to a line-scanned surface light source. Background Technology

[0002] Existing 2.5D line scan surface light sources mostly use monochrome LEDs to control line scanning. When a product needs to be inspected for both visible and invisible light, it usually requires two inspection platforms for secondary inspection. This not only increases the inspection cost but also the inspection time. However, if the visible light structure and the invisible light structure are combined, the overall structure of the 2.5D line scan surface light source will be larger, and the space occupied will also increase. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a line-scanned surface light source that can selectively emit visible light and invisible light, and occupies less space.

[0004] To achieve the above objectives, the present invention provides a line-scanning surface light source, comprising a housing, the housing including a shell and a transparent plate; the shell is provided with a receiving cavity, an opening, and a first through-hole; the opening is located at the top of the receiving cavity and communicates with the receiving cavity; the first through-hole is located at the bottom of the receiving cavity and communicates with the receiving cavity; the transparent plate is located at the opening; and an illumination assembly is disposed within the receiving cavity; the illumination assembly includes a lamp board and a control board; the lamp board is located below the transparent plate; the lamp board has a plate body, light-emitting chips, and pins; multiple light-emitting chips and pins are provided; multiple light-emitting chips are disposed on the plate body. The control board is located on the side of the lamp board away from the transparent plate and is spaced apart from the board body; the pins are electrically connected to the control board; the control board is provided with a second port, which is opposite to the first port; a heat dissipation assembly includes a heat dissipation plate and a heat dissipation fan; the heat dissipation plate is located between the board body and the control board and abuts against the bottom end of the board body; the heat dissipation plate is provided with a through groove, which passes through the top and bottom ends of the heat dissipation plate; the multiple pins are respectively inserted through the multiple through grooves; the heat dissipation fan is located at the first port and the second port and faces the heat dissipation plate.

[0005] Furthermore, it also includes a debugging laser and a laser mounting base; the laser mounting base is connected to the outer end of the housing, and the debugging laser is detachably connected to the laser mounting base.

[0006] Furthermore, multiple first ports and multiple second ports are provided, with each of the multiple first ports and multiple second ports arranged opposite to each other; multiple cooling fans are provided, and are respectively arranged at multiple opposite first ports and multiple second ports.

[0007] Furthermore, the through slot is disposed on the side end of the heat sink plate, and the side end of the heat sink plate with the through slot abuts against the inner side wall of the receiving cavity. The inner side wall of the receiving cavity and the slot wall of the through slot define a receiving space. The pin passes through the receiving space and abuts against the peripheral wall of the receiving space.

[0008] Furthermore, a limiting boss is provided on the inner wall of the receiving cavity, and the limiting boss abuts against the bottom end of the heat sink.

[0009] Furthermore, the bottom end of the heat sink is provided with a strip groove, which extends along a first direction. Multiple strip grooves are provided, and the multiple strip grooves are arranged sequentially at intervals along a second direction; the first direction and the second direction are perpendicular to each other.

[0010] Furthermore, the housing includes a bottom plate and side plates; four side plates are provided and connected end to end in sequence, one end of each of the four side plates is connected to the top of the bottom plate and defines the receiving cavity with the bottom plate; the transparent plate is connected to at least a portion of the side plates at the ends away from the bottom plate.

[0011] Furthermore, the housing also includes a light-blocking plate and an inspection cover; the inspection cover is disposed at the opening and covers the opening with the transparent plate, the two ends of the light-blocking plate are connected to the two opposite side plates, and the light-blocking plate abuts against the inspection cover, the heat sink and the lamp plate.

[0012] Furthermore, the housing includes a diffuser plate disposed between the transparent plate and the light panel.

[0013] Furthermore, the housing also includes a diffusion film disposed between the transparent plate and the diffuser plate.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. The light board is located below the transparent plate and is connected to the control board via pins. The control board can control the light-emitting chips on the light board to emit light, and the light emitted by the light-emitting chips can shine outward through the transparent plate. The light board is equipped with multiple light-emitting chips, which are electrically connected to the control board via multiple pins. The control board can control the individual start and stop of the light-emitting chips, so that the control board can control the light board to selectively emit visible light and invisible light, thereby improving detection efficiency and reducing the detection time.

[0016] 2. The heat sink abuts against the lamp board, and the heat generated by the lamp board can be conducted to the heat sink. The heat sink dissipates the heat from the lamp board. The heat sink is positioned between the lamp board and the control board to ensure the heat dissipation efficiency of the heat sink. Furthermore, the pins of the lamp board pass through the through slots of the heat sink, which can reduce the overall thickness of the line scan surface light source of the present invention.

[0017] 3. The cooling fan can blow air directly onto the heat sink to reduce its temperature and improve heat dissipation. Furthermore, the first port on the housing is positioned opposite the second port on the control board, and the cooling fan is installed at both ports. This reduces the thickness space occupied by the cooling fan, thereby further reducing the overall thickness of the line scan surface light source and its occupied space. Attached Figure Description

[0018] To more clearly illustrate the technology in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the line-scanning surface light source of the present invention;

[0020] Figure 2 This is a structural schematic diagram of the line-scan surface light source of the present invention from another perspective;

[0021] Figure 3 This is an exploded view of the line-scanning surface light source of the present invention;

[0022] Figure 4 This is a cross-sectional view of the line-scanning surface light source of the present invention;

[0023] Figure 5 This is a schematic diagram of the heat sink structure of the line scan surface light source of the present invention;

[0024] Figure 6 This is a schematic diagram of the lamp board structure of the line-scanning surface light source of the present invention;

[0025] Figure 7 This is a schematic diagram of the housing of the line-scanning surface light source of the present invention;

[0026] Figure 8 This is a schematic diagram of the control board of the line-scan surface light source of the present invention.

[0027] Figure label:

[0028] 100 outer shell; 110 housing; 101 first port; 102 opening; 103 receiving cavity; 104 limiting boss; 111 base plate; 112 side plate; 113 light blocking plate; 114 inspection cover; 115 diffuser plate; 116 diffuser film; 120 transparent plate; 200 lamp board; 210 board body; 220 pins; 300 control board; 310 second port; 400 heat sink; 410 through groove; 420 strip groove; 500 cooling fan; 600 debugging laser; 700 laser mounting base. Detailed Implementation

[0029] 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.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention 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 indication will also change accordingly.

[0031] Furthermore, if the embodiments of the present invention 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.

[0032] Please see Figures 1 to 8An embodiment of the present invention provides a line-scanning surface light source, which includes a housing 100, an illumination component, and a heat dissipation component. The housing 100 includes a shell 110 and a transparent plate 120. The shell 110 is provided with a receiving cavity 103, an opening 102, and a first through-hole 101. The opening 102 is located at the top of the receiving cavity 103 and communicates with it. The first through-hole 101 is located at the bottom of the receiving cavity 103 and communicates with it. The transparent plate 120 is located at the opening 102. The illumination component is located inside the receiving cavity 103. The illumination component includes a lamp board 200 and a control board 300. The lamp board 200 is located below the transparent plate 120. The lamp board 200 has a plate body 210, light-emitting chips, and pins 220. Multiple light-emitting chips and pins 220 are provided. All components are mounted on the board 210 and connected to multiple pins 220 respectively; the control board 300 is located on the side of the lamp board 200 away from the transparent plate 120 and is spaced apart from the board 210; the pins 220 are electrically connected to the control board 300; the control board 300 is provided with a second port 310, which is opposite to the first port 101; the heat dissipation assembly includes a heat sink 400 and a cooling fan 500; the heat sink 400 is located between the board 210 and the control board 300 and abuts against the bottom end of the board 210; the heat sink 400 is provided with a through groove 410, which passes through the top and bottom ends of the heat sink 400; multiple pins 220 are respectively inserted through multiple through grooves 410; the cooling fan 500 is located at the first port 101 and the second port 310 and faces the heat sink 400.

[0033] The light board 200 is located below the transparent plate 120 and is connected to the control board 300 via pins 220. The control board 300 can control the light-emitting chips on the light board 200 to emit light, and the light emitted by the light-emitting chips can shine outward through the transparent plate 120. The light board 200 is provided with multiple light-emitting chips, and the multiple light-emitting chips are electrically connected to the control board 300 via multiple pins 220. The control board 300 can control the light-emitting chips to start and stop individually, so that the control board 300 can control the light board 200 to selectively emit visible light and invisible light, thereby improving detection efficiency and reducing the detection time.

[0034] The heat sink 400 abuts against the lamp board 200, and the heat generated by the lamp board 200 can be conducted to the heat sink 400. The heat sink 400 dissipates the heat from the lamp board 200. The heat sink 400 is disposed between the lamp board 200 and the control board 300 to ensure the heat dissipation efficiency of the heat sink 400. Furthermore, the pins 220 of the lamp board 200 pass through the through slots 410 of the heat sink 400, which can reduce the overall thickness of the line scan surface light source of the present invention.

[0035] The cooling fan 500 can blow air directly onto the heat sink 400 to reduce the temperature of the heat sink 400 and improve the heat dissipation effect. Furthermore, the first port 101 of the housing 110 is positioned opposite to the second port 310 on the control board 300. The cooling fan 500 is installed at the first port 101 and the second port 310, which can reduce the thickness space occupied by the cooling fan 500, thereby further reducing the overall thickness of the line scan surface light source and reducing the space it occupies.

[0036] Specifically, the light board 200 has four light-emitting chips, consisting of two infrared and two white light chips. The 8-pin 220 has eight chips and adopts a common positive design. Therefore, each light-emitting chip can be individually controlled to turn on and off through the control board 300. This solves the problem that traditional 2.5D line scan surface light sources cannot achieve the simultaneous use of visible and invisible light, thus reducing detection costs and efficiency.

[0037] Reference Figures 1 to 3 In some embodiments of the present invention, a debugging laser 600 and a laser mounting base 700 are also included; the laser mounting base 700 is connected to the outer end of the housing 110, and the debugging laser 600 and the laser mounting base 700 are detachably connected.

[0038] By setting the laser mounting base 700, the debugging laser 600 can be installed on the outside of the housing 110 to limit the position between the debugging laser 600 and the lamp board 200. This makes it more convenient and accurate when using the light source assumption detection platform. The debugging laser 600 and the laser mounting base 700 are detachably connected. When using the lamp board 200, the debugging laser 600 can be removed to improve convenience.

[0039] Reference Figure 2 , Figure 3 , Figure 7 and Figure 8 In some embodiments of the present invention, a plurality of first ports 101 are provided, a plurality of second ports 310 are provided, and the plurality of first ports 101 and the plurality of second ports 310 are arranged opposite to each other; a plurality of cooling fans 500 are provided, and are respectively arranged at the plurality of opposite first ports 101 and second ports 310.

[0040] The number of first openings 101 on the housing 110 is equal to the number of second openings 310 on the control board 300. After the control board 300 is placed into the receiving cavity 103, the first openings 101 on the bottom of the housing 110 and the second openings 310 on the control board 300 are arranged opposite to each other. Each cooling fan 500 is installed at the opposite first opening 101 and second opening 310, so that the cooling fan 500 can be embedded in the bottom of the housing 110 and the control board 300, reducing the space occupied by the cooling fan 500 and thus reducing the thickness of the line scan surface light source.

[0041] Specifically, multiple first ports 101 and multiple second ports 310 are arranged sequentially at intervals along the length of the heat sink 400, thereby improving the heat dissipation effect of the cooling fan 500 on the heat sink 400.

[0042] Reference Figures 4 to 6 In some embodiments of the present invention, the through groove 410 is disposed on the side end of the heat sink 400, the side end of the heat sink 400 abuts against the inner side wall of the receiving cavity 103, and the inner side wall of the receiving cavity 103 and the groove wall of the through groove 410 define a receiving space, and the pin 220 passes through the receiving space and abuts against the peripheral wall of the receiving space.

[0043] After the heat sink 400 is placed into the receiving cavity 103, the side end of the heat sink 400 abuts against the inner sidewall of the receiving cavity 103. The through groove 410 is provided at the side end of the heat sink 400. The groove wall of the through groove 410 and the inner sidewall of the receiving cavity 103 define a receiving space for placing the pin 220. The pin 220 passes through the receiving space and is electrically connected to the control board 300. The pin 220 abuts against the peripheral wall of the receiving space, that is, the pin 220 abuts against the groove wall of the through groove 410 and the inner sidewall of the receiving cavity 103. This allows the receiving space to define the position of the pin 220, reducing the possibility of the pin 220 bending. After the heat emitted by the light-emitting chip is conducted to the pin 220, the pin 220 can conduct the heat to the heat sink 400 and the housing 110, improving the heat dissipation efficiency.

[0044] Specifically, adjacent through slots 410 are spaced apart to prevent pins 220 from accidentally touching each other.

[0045] Reference Figure 7 In some embodiments of the present invention, a limiting boss 104 is provided on the inner sidewall of the receiving cavity 103, and the limiting boss 104 abuts against the bottom end of the heat sink 400.

[0046] After the heat sink 400 is placed into the receiving cavity 103, the bottom end of the heat sink 400 abuts against the limiting boss 104 to limit the position of the heat sink 400, prevent the heat sink 400 from abutting against the control board 300, reduce the heat that the control board 300 can accept, and thus ensure that the control board 300 can work normally.

[0047] Specifically, there are two limiting protrusions, which are respectively set on the two opposite inner sidewalls of the receiving cavity 103.

[0048] Reference Figure 5 In some embodiments of the present invention, a strip groove 420 is provided at the bottom end of the heat sink 400. The strip groove 420 extends along a first direction, and multiple strip grooves 420 are provided. The multiple strip grooves 420 are arranged sequentially at intervals along a second direction. The first direction and the second direction are perpendicular to each other.

[0049] The heat sink 400 is provided with multiple strip grooves 420 to increase the contact area between the heat sink 400 and the air, thereby improving the heat dissipation efficiency of the heat sink 400. The strip grooves 420 extend along the first direction, so that the airflow blown by the cooling fan 500 can flow along the strip grooves 420, reducing the speed loss of the airflow during flow and improving the heat dissipation efficiency. The multiple strip grooves 420 are arranged along the second direction to further improve the heat dissipation efficiency.

[0050] Specifically, the first direction is set in the same direction as the length direction of the heat sink 400, and the second direction is set in the same direction as the width direction of the heat sink 400.

[0051] Reference Figure 1 , Figure 3 and Figure 7 In some embodiments of the present invention, the housing 110 includes a bottom plate 111 and side plates 112; four side plates 112 are provided and connected end to end in sequence, one end of the four side plates 112 is connected to the top end of the bottom plate 111 and defines a receiving cavity 103 with the bottom plate 111; a transparent plate 120 is connected to at least a portion of the side plates 112 away from the bottom plate 111.

[0052] One end of each of the four side plates 112 is connected to the top of the base plate 111, and the transparent plate 120 is connected to at least a portion of the side plates 112 away from the base plate 111, so as to reduce the degree of light leakage and improve the accuracy of detection.

[0053] Specifically, the transparent panel 120 abuts against the three side panels 112 to further reduce the degree of light leakage.

[0054] Reference Figure 3 In some embodiments of the present invention, the housing 110 further includes a light-blocking plate 113 and a maintenance cover plate 114; the maintenance cover plate 114 is disposed at the opening 102 and covers the opening 102 with the transparent plate 120; the two ends of the light-blocking plate 113 are connected to the two opposite side plates 112 and abut against the maintenance cover plate 114, the heat sink plate 400 and the lamp plate 200.

[0055] The inspection cover 114 and the transparent plate 120 cover and seal the opening 102 to prevent external substances from entering the receiving cavity 103 from the opening 102, so as to ensure that the working structure inside the receiving cavity 103 can work normally.

[0056] The two ends of the light-blocking plate 113 are connected to two opposite side plates 112, which define the position of the light-blocking plate 113. The light-blocking plate 113 abuts against the inspection cover plate 114, the heat sink plate 400 and the lamp plate 200, so as to block the light emitted by the lamp plate 200 from the side and reduce the light leakage effect.

[0057] Specifically, the light-blocking plate 113 is connected to two of the opposite side plates 112, and the light-blocking plate 113 is spaced apart from the other two opposite side plates 112.

[0058] Reference Figure 3 In some embodiments of the present invention, the housing 110 includes a diffuser plate 115, which is disposed between the transparent plate 120 and the lamp plate 200.

[0059] The light emitted by the light panel 200 needs to be diffused outward through the diffuser 115. By setting the diffuser 115, the direct light emitted by the light panel 200 can be converted into diffuse light that is evenly distributed in all directions, thus eliminating the directional interference of specular reflection.

[0060] Reference Figure 3 In some embodiments of the present invention, the housing 110 further includes a diffusion film 116 disposed between the transparent plate 120 and the diffuser plate 115.

[0061] The light emitted by the lamp panel 200 needs to be diffused outward through the diffusion film 116. By setting the diffusion film 116, the direct light emitted by the lamp panel 200 can be converted into diffused light that is evenly distributed in all directions, thus eliminating the directional interference of specular reflection.

[0062] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A line-scanned surface light source, characterized in that, include: The outer shell (100) includes a housing (110) and a transparent plate (120); the housing (110) is provided with a receiving cavity (103), an opening (102) and a first through-hole (101); the opening (102) is located at the top of the receiving cavity (103) and communicates with the receiving cavity (103); the first through-hole (101) is located at the bottom of the receiving cavity (103) and communicates with the receiving cavity (103); the transparent plate (120) is located at the opening (102); An illumination assembly is disposed within the receiving cavity (103); the illumination assembly includes a lamp board (200) and a control board (300); the lamp board (200) is located below the transparent plate (120); the lamp board (200) has a plate body (210), light-emitting chips, and pins (220); multiple light-emitting chips and multiple pins (220) are provided; multiple light-emitting chips are disposed on the plate body (210) and are respectively connected to multiple pins (220); the control board (300) is located on the side of the lamp board (200) away from the transparent plate (120) and is spaced apart from the plate body (210); the pins (220) are electrically connected to the control board (300); the control board (300) is provided with a second port (310), the second port (310) being opposite to the first port (101); The heat dissipation assembly includes a heat sink (400) and a cooling fan (500); the heat sink (400) is located between the board body (210) and the control board (300) and abuts against the bottom end of the board body (210); a through slot (410) is provided on the heat sink (400), the through slot (410) is provided through the top and bottom ends of the heat sink (400); a plurality of pins (220) are respectively provided through the plurality of through slots (410); the cooling fan (500) is provided at the first through port (101) and the second through port (310) and is oriented towards the heat sink (400); The control board (300) can control the light-emitting chip to start and stop independently, and the control board (300) controls the lamp board (200) to select to emit visible light and invisible light.

2. The line-scanned surface light source according to claim 1, characterized in that, It also includes a debugging laser (600) and a laser mounting base (700); the laser mounting base (700) is connected to the outer end of the housing (110), and the debugging laser (600) is detachably connected to the laser mounting base (700).

3. The line-scanned surface light source according to claim 1, characterized in that, Multiple first ports (101) and multiple second ports (310) are provided, with multiple first ports (101) and multiple second ports (310) arranged one-to-one; multiple cooling fans (500) are provided, and are respectively arranged at multiple opposite first ports (101) and second ports (310).

4. The line-scanned surface light source according to claim 1, characterized in that, The through slot (410) is disposed on the side end of the heat sink (400). The side end of the heat sink (400) with the through slot (410) abuts against the inner wall of the receiving cavity (103). The inner wall of the receiving cavity (103) and the slot wall of the through slot (410) define a receiving space. The pin (220) passes through the receiving space and abuts against the peripheral wall of the receiving space.

5. The line-scanned surface light source according to claim 1, characterized in that, A limiting boss (104) is provided on the inner wall of the receiving cavity (103), and the limiting boss (104) abuts against the bottom end of the heat sink (400).

6. The line-scanned surface light source according to claim 1, characterized in that, The bottom end of the heat sink (400) is provided with a strip groove (420), the strip groove (420) extends along a first direction, and multiple strip grooves (420) are provided. The multiple strip grooves (420) are arranged in sequence at intervals along a second direction; the first direction and the second direction are perpendicular to each other.

7. The line-scanned surface light source according to claim 1, characterized in that, The housing (110) includes a bottom plate (111) and side plates (112); four side plates (112) are provided and connected end to end in sequence, one end of the four side plates (112) is connected to the top of the bottom plate (111) and defines the receiving cavity (103) with the bottom plate (111); the transparent plate (120) is connected to at least a portion of the side plates (112) away from the bottom plate (111).

8. The line-scanned surface light source according to claim 7, characterized in that, The housing (110) also includes a light-blocking plate (113) and an inspection cover (114); the inspection cover (114) is disposed at the opening (102) and covers the opening (102) with the transparent plate (120); the two ends of the light-blocking plate (113) are connected to the two opposite side plates (112), and the light-blocking plate (113) abuts against the inspection cover (114), the heat sink (400) and the lamp plate (200).

9. The line-scanned surface light source according to claim 1, characterized in that, The housing (110) includes a diffuser plate (115) disposed between the transparent plate (120) and the lamp plate (200).

10. The line-scanned surface light source according to claim 9, characterized in that, The housing (110) also includes a diffusion film (116) disposed between the transparent plate (120) and the diffuser plate (115).

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