Tunnel light source

Abstract

The utility model discloses a tunnel light source, and relates to the technical field of detection light sources. The tunnel light source comprises a shell and a light source assembly. A first space, a light source channel and a second space are arranged in the shell; the first space, the light source channel and the second space are sequentially arranged in the length direction of the shell, and the light source channel communicates with the first space and the second space; the light source channel extends up and down in the height direction of the shell. The two light source assemblies are respectively arranged in the first space and the second space; light outlets of the light source assemblies face the lower portion of the light source channel, and an included angle is formed between the directions of the light outlets of the two light source assemblies. The two light source assemblies are symmetrically arranged relative to the light source channel. When a to-be-detected product is a spherical cambered surface type product, the tunnel light source can obliquely irradiate the to-be-detected product from the two sides through the two light source assemblies, and the two light source assemblies are symmetrically arranged, so that the to-be-detected product can be uniformly irradiated, and the irradiation requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of detection light source technology, and in particular to a tunnel light source. Background Technology

[0002] In the field of machine vision, it is usually necessary to use light sources to illuminate products when inspecting their appearance. Among these, tunnel light sources are widely used in the printing industry for lighting applications.

[0003] Most existing tunnel light sources emit shadowless light. Structurally, a reflector is placed at the bottom to reflect the light path. The emitted light path is high-angle light, which is highly efficient for inspecting products with flat surfaces. However, when the product to be inspected is a spherical or curved surface, it is difficult to achieve uniform illumination of the curved product, which is difficult to meet the illumination requirements. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a tunnel light source that can uniformly illuminate the spherical arc surface product from both sides, thus meeting the illumination requirements.

[0005] To achieve the above objectives, this utility model provides a tunnel light source, including a housing and light source components; the housing is hollow inside; the housing has a first space, a light source channel, and a second space; the first space, the light source channel, and the second space are arranged sequentially along the length of the housing, and the light source channel is connected to the first space and the second space respectively; the light source channel extends vertically along the height of the housing; the housing has a first opening and a second opening; the first opening is located at the top of the housing and is connected to the upper end of the light source channel; the second opening is located at the bottom of the housing and is connected to the first space, the light source channel, and the second space; two light source components are provided; the two light source components are respectively located in the first space and the second space; each light source component has a light outlet; the light outlets of the light source components face downwards towards the light source channel, and there is an angle between the directions of the light outlets of the two light source components; the two light source components are symmetrically arranged relative to the light source channel.

[0006] Furthermore, the light source assembly includes a main body, a light-emitting element, and a diffuser plate; the main body is provided with a receiving cavity, the light-emitting port is disposed on the main body and communicates with the receiving cavity; the light-emitting element is disposed in the receiving cavity, and the diffuser plate is disposed at the light-emitting port.

[0007] Furthermore, it also includes a liquid cooling component; the main body is provided with a first port and a liquid cooling channel; the first port is connected to one end of the liquid cooling channel; the liquid cooling component is connected to the first port, and the liquid cooling component can input coolant into the liquid cooling channel and discharge coolant from the liquid cooling channel.

[0008] Furthermore, the main body is also provided with a connecting channel; there are two of each of the first ports and the liquid cooling channel, and the two first ports are respectively connected to one end of the two liquid cooling channels; the two ends of the connecting channel are respectively connected to the ends of the two liquid cooling channels away from the first ports; the liquid cooling component is connected to the two first ports.

[0009] Furthermore, the first port is located at the same end of the main body, and the outer shell is provided with a second port, with the end portion of the main body having the first port located at the second port.

[0010] Furthermore, the main body also includes a connector; the end of the main body is provided with a first connection port, the outer shell is provided with a second connection port, the end of the main body provided with the first connection port abuts against the inner wall of the outer shell, the first connection port and the second connection port are arranged opposite to each other and communicate with each other, and the connector passes through the first connection port and the second connection port.

[0011] Furthermore, the first connection port is provided in multiple ways and is respectively located at two opposite ends of the main body; the two ends of the main body with the first connection port respectively abut against two opposite walls inside the outer shell; the second connection port is provided in multiple ways and is respectively located opposite to and connected to multiple first connection ports; the connector is provided in multiple ways and is respectively inserted through the opposite first connection port and second connection port.

[0012] Furthermore, the length direction of the light source channel is aligned with the width direction of the housing, the width direction of the light source channel is aligned with the length direction of the housing, and the extension direction of the light source channel is aligned with the height direction of the housing; the length direction, width direction, and height direction of the housing are all perpendicular to each other.

[0013] Furthermore, the length direction of the first opening is aligned with the width direction of the outer shell.

[0014] Furthermore, the length direction of the light source assembly is aligned with the width direction of the housing.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. In the utility model embodiment, the product to be tested can be placed below the light source channel, and the camera module can be placed above the light source channel. The housing is provided with a first opening and a second opening, so that the camera module placed above the light source channel can detect the product to be tested placed below the light source channel.

[0017] 2. Light source components are provided in both the first and second spaces. The light outlets of the two light source components are both positioned downwards from the light source channel, allowing the two light source components to illuminate the product to be tested placed below the light source channel. The directions of the light outlets of the two light source components are at an angle, allowing the two light source components to illuminate the product to be tested from both sides at an angle. When the product to be tested is a spherical arc-shaped product, the tunnel light source can illuminate the product to be tested from both sides at an angle through the two light source components. Furthermore, the two light source components are symmetrically arranged to provide uniform illumination of the product to be tested, thus meeting the illumination requirements. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the tunnel light source of this utility model;

[0020] Figure 2 This is a cross-sectional view of the tunnel light source of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the light source assembly of the tunnel light source of this utility model;

[0022] Figure 4 This is a cross-sectional view of the light source assembly of the tunnel light source of this utility model;

[0023] Figure 5 This is a schematic diagram of the outer shell of the tunnel light source of this utility model.

[0024] Figure label:

[0025] 100 housing; 101 first space; 102 light source channel; 103 second space; 104 first opening; 105 second opening; 106 second through-hole; 107 second connection port; 200 light source assembly; 201 light outlet; 210 main body; 211 first through-hole; 212 liquid cooling channel; 213 first connection port; 214 receiving cavity; 215 connecting channel; 220 light-emitting element; 230 diffuser plate. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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.

[0029] Please see Figures 1 to 5 This utility model provides a tunnel light source, which includes a housing 100 and a light source assembly 200. The housing 100 is hollow inside. The housing 100 has a first space 101, a light source channel 102, and a second space 103 inside. The first space 101, the light source channel 102, and the second space 103 are arranged sequentially along the length of the housing 100, and the light source channel 102 is connected to the first space 101 and the second space 103 respectively. The light source channel 102 extends vertically along the height of the housing 100. The housing 100 has a first opening 104 and a second opening 105. The first opening 104 is located at... The top of the housing 100 is connected to the upper end of the light source channel 102; the second opening 105 is located at the bottom of the housing 100 and is connected to the first space 101, the light source channel 102, and the second space 103; two light source assemblies 200 are provided; the two light source assemblies 200 are respectively located in the first space 101 and the second space 103; each light source assembly 200 has a light outlet 201; the light outlet 201 of the light source assembly 200 is positioned downwards towards the light source channel 102, and there is an angle between the directions of the light outlets 201 of the two light source assemblies 200; the two light source assemblies 200 are symmetrically arranged with respect to the light source channel 102.

[0030] In this utility model embodiment, the product to be tested can be placed below the light source channel 102, and the camera module can be placed above the light source channel 102. The housing 100 is provided with a first opening 104 and a second opening 105, so that the camera module placed above the light source channel 102 can detect the product to be tested placed below the light source channel 102.

[0031] Light source components 200 are provided in both the first space 101 and the second space 103. The light outlets 201 of the two light source components 200 are both positioned downwards from the light source channel 102, so that the two light source components 200 can illuminate the product to be tested placed below the light source channel 102. The directions of the light outlets 201 of the two light source components 200 are at an angle, so that the two light source components 200 can respectively illuminate the product to be tested from both sides at an angle. When the product to be tested is a spherical arc-shaped product, the tunnel light source can illuminate the product to be tested from both sides at an angle through the two light source components 200. The two light source components 200 are symmetrically arranged to provide uniform illumination of the product to be tested and meet the illumination requirements.

[0032] Reference Figure 2 and Figure 3 In some embodiments of this utility model, the light source assembly 200 includes a main body 210, a light-emitting element 220, and a diffuser plate 230; the main body 210 is provided with a receiving cavity 214, and a light-emitting port 201 is disposed on the main body 210 and communicates with the receiving cavity 214; the light-emitting element 220 is disposed in the receiving cavity 214, and the diffuser plate 230 is disposed at the light-emitting port 201.

[0033] The light source assembly 200 houses the light-emitting element 220 through the main body 210. The light-emitting element 220 can emit light. The light emitted by the light-emitting element 220 is emitted outward through the diffuser plate 230 located at the light outlet 201. By setting the diffuser plate 230, the uniformity of light can be improved and specular reflection can be suppressed. By setting the main body 210, the light-emitting element 220 in the housing cavity 214 can be protected.

[0034] Specifically, the light outlet 201 is located at the lower end of the main body 210, and the main body 210 is tilted downward toward the light source channel 102, so that the light outlet 201 of the main body 210 is tilted downward toward the light source channel 102.

[0035] Reference Figures 2 to 4 In some embodiments of this utility model, a liquid cooling component is also included; the main body 210 is provided with a first port 211 and a liquid cooling channel 212; the first port 211 is connected to one end of the liquid cooling channel 212; the liquid cooling component is connected to the first port 211, and the liquid cooling component can input coolant into the liquid cooling channel 212 and discharge coolant from the liquid cooling channel 212.

[0036] By providing a liquid cooling channel 212 inside the main body 210, the liquid cooling component can input a coolant with a lower temperature into the liquid cooling channel 212 through the first port 211. The coolant with a lower temperature cools the main body 210, thereby preventing the light-emitting element 220 from overheating inside the main body 210. The liquid cooling component can also discharge the coolant in the liquid cooling channel 212 to recover the coolant.

[0037] Specifically, the liquid cooling component can be a water-cooled cooling device, and the coolant can be water.

[0038] Reference Figure 4 In some embodiments of this utility model, the main body 210 is further provided with a connecting channel 215; two first ports 211 and two liquid cooling channels 212 are provided, and the two first ports 211 are respectively connected to one end of the two liquid cooling channels 212; the two ends of the connecting channel 215 are respectively connected to the ends of the two liquid cooling channels 212 away from the first ports 211; the liquid cooling component is connected to the two first ports 211.

[0039] The liquid cooling assembly can input coolant from one of the first ports 211 into one of the liquid cooling channels 212. The coolant enters the liquid cooling channel 212, then enters another liquid cooling channel 212 through the connecting channel 215, and finally exits from another first port 211, so that the liquid cooling assembly can recover the coolant.

[0040] By setting up a liquid cooling component, the flow path of the coolant within the main body 210 can be extended, thereby improving cooling efficiency. Furthermore, the two first ports 211 are respectively connected to one end of the two liquid cooling channels 212; the two ends of the connecting channel 215 are respectively connected to the ends of the two liquid cooling channels 212 away from the first ports 211, so as to further extend the flow path of the coolant within the main body 210 and further improve cooling efficiency.

[0041] Specifically, the two liquid cooling channels 212 are arranged in parallel and spaced apart, and the connecting channel 215 is located on the side of the liquid cooling channel 212 away from the first opening 211.

[0042] Reference Figure 3 and Figure 4 In some embodiments of this utility model, the first port 211 is provided at the same end of the main body 210, and the outer shell 100 is provided with a second port 106. The end portion of the main body 210 provided with the first port 211 is located at the second port 106. By providing the second port 106, the difficulty of connecting the liquid cooling component to the first port 211 can be reduced.

[0043] Specifically, the end portion of the main body 210 with the first port 211 is located at the second port 106, so that it is exposed at the second port 106. The quick-connect elbow of the liquid cooling component is installed outside the housing 100 and is connected to the first port 211, reducing the difficulty of installation.

[0044] Reference Figure 1 , Figure 3 and Figure 5 In some embodiments of this utility model, the main body 210 further includes a connector; the end of the main body 210 is provided with a first connection port 213, and the outer shell 100 is provided with a second connection port 107. The end of the main body 210 with the first connection port 213 abuts against the inner wall of the outer shell 100. The first connection port 213 and the second connection port 107 are arranged opposite to each other and communicate with each other. The connector passes through the first connection port 213 and the second connection port 107 so as to fix the main body 210 and the outer shell 100, and limit the position of the main body 210 inside the outer shell 100. By providing the first connection port 213 and the second connection port 107, the difficulty of installing the main body 210 inside the outer shell 100 can be reduced.

[0045] Specifically, the first connection port 213 and the second connection port 107 can be threaded holes, and the connector can be a connecting screw. The connector passes through the first connection port 213 and the second connection port 107 to fix the main body 210.

[0046] The two ends of the diffuser plate 230 abut against the inner wall of the main body 210.

[0047] The end of the diffuser 230 extends to abut against the inner wall of the body 210, thereby increasing the degree to which the diffuser 230 improves light uniformity and further suppresses specular reflection.

[0048] Specifically, the two ends of the main body 210 extend to abut against the two walls opposite to the interior of the main body 210, and the two ends of the diffuser plate 230 extend to abut against the two walls opposite to the interior of the main body 210.

[0049] Reference Figure 3 and Figure 5 In some embodiments of this utility model, multiple first connection ports 213 are provided and are respectively provided at two opposite ends of the main body 210; the two ends of the main body 210 with the first connection ports 213 respectively abut against two opposite walls inside the outer shell 100; multiple second connection ports 107 are provided and are respectively provided opposite to and connected to multiple first connection ports 213; multiple connectors are provided and are respectively passed through the opposite first connection ports 213 and second connection ports 107.

[0050] Multiple first connection ports 213 and multiple second connection ports 107 are arranged one-to-one. Multiple connectors are provided, and multiple connectors pass through multiple pairs of opposing first connection ports 213 and second connection ports 107 respectively, so as to improve the stability of the main body 210 fixed on the outer shell 100.

[0051] The first connection ports 213 are respectively located at opposite ends of the main body 210, so that the two ends of the main body 210 can be fixed to the outer shell 100, thereby improving the stability of the installation.

[0052] Specifically, the two ends of the main body 210 abut against the two opposing walls inside the outer shell 100, so as to reduce the amount of light leakage between the main body 210 and the outer shell 100 and improve the utilization rate of the light source energy.

[0053] Reference Figure 1 and Figure 2 In some embodiments of this utility model, the length direction of the light source channel 102 is arranged in the same direction as the width direction of the housing 100, the width direction of the light source channel 102 is arranged in the same direction as the length direction of the housing 100, and the extension direction of the light source channel 102 is arranged in the same direction as the height direction of the housing 100; the length direction, width direction and height direction of the housing 100 are all perpendicular to each other.

[0054] Specifically, the length direction of the light source channel 102 is set in the same direction as the length direction of the light source assembly 200, so that the light source assembly 200 can be adapted to the light source channel 102, and the two light source assemblies 200 are symmetrically arranged with respect to the plane in which the light source channel 102 is located, so as to improve the degree of uniform illumination.

[0055] Reference Figure 1 and Figure 5 In some embodiments of this utility model, the length direction of the first opening 104 is arranged in the same direction as the width direction of the housing 100, so as to extend the size of the first opening 104 and improve the efficiency of the CCD camera module in detecting the product to be detected located below the light source channel 102 through the first opening 104.

[0056] Specifically, the width direction of the first opening 104 is set in the same direction as the length direction of the outer casing 100.

[0057] Reference Figure 2 and Figure 3 In some embodiments of this utility model, the length direction of the light source assembly 200 is arranged in the same direction as the width direction of the housing 100, so as to extend the size of the light source assembly 200 and enable the light source assembly 200 to illuminate more light onto the product under test located below the light source channel 102.

[0058] Specifically, the length direction of the light source assembly 200 is set in the same direction as the length direction of the first opening 104.

[0059] 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 tunnel light source, characterized in that, include: The outer shell (100) is hollow inside. The outer shell (100) has a first space (101), a light source channel (102), and a second space (103) inside. The first space (101), the light source channel (102), and the second space (103) are arranged sequentially along the length of the outer shell (100). The light source channel (102) communicates with both the first space (101) and the second space (103). The light source channel (102) extends vertically along the height of the outer shell (100). The outer shell (100) has a first opening (104) and a second opening (105). The first opening (104) is located at the top of the outer shell (100) and communicates with the upper end of the light source channel (102). The second opening (105) is located at the bottom of the outer shell (100) and communicates with the first space (101), the light source channel (102), and the second space (103). Two light source components (200) are provided; the two light source components (200) are respectively disposed in the first space (101) and the second space (103); each light source component (200) has a light outlet (201); the light outlet (201) of the light source component (200) is disposed facing downwards towards the light source channel (102), and there is an included angle between the directions of the light outlets (201) of the two light source components (200); the two light source components (200) are symmetrically disposed with respect to the light source channel (102).

2. The tunnel light source according to claim 1, characterized in that, The light source assembly (200) includes a main body (210), a light-emitting element (220), and a diffuser plate (230); the main body (210) is provided with a receiving cavity (214), and the light-emitting port (201) is disposed on the main body (210) and communicates with the receiving cavity (214); the light-emitting element (220) is disposed in the receiving cavity (214), and the diffuser plate (230) is disposed at the light-emitting port (201).

3. The tunnel light source according to claim 2, characterized in that, It also includes a liquid cooling component; the main body (210) is provided with a first port (211) and a liquid cooling channel (212); the first port (211) is connected to one end of the liquid cooling channel (212); the liquid cooling component is connected to the first port (211), and the liquid cooling component can input coolant into the liquid cooling channel (212) and discharge coolant from the liquid cooling channel (212).

4. The tunnel light source according to claim 3, characterized in that, The main body (210) is also provided with a connecting channel (215); there are two first ports (211) and two liquid cooling channels (212), and the two first ports (211) are respectively connected to one end of the two liquid cooling channels (212); the two ends of the connecting channel (215) are respectively connected to the ends of the two liquid cooling channels (212) away from the first ports (211); the liquid cooling assembly is connected to the two first ports (211).

5. The tunnel light source according to claim 4, characterized in that, The first port (211) is located at the same end of the main body (210), and the outer shell (100) is provided with a second port (106). The end portion of the main body (210) with the first port (211) is located at the second port (106).

6. The tunnel light source according to claim 3, characterized in that, The main body (210) also includes a connector; the end of the main body (210) is provided with a first connection port (213), and the outer shell (100) is provided with a second connection port (107). The end of the main body (210) with the first connection port (213) abuts against the inner wall of the outer shell (100). The first connection port (213) and the second connection port (107) are arranged opposite to each other and communicate with each other. The connector passes through the first connection port (213) and the second connection port (107).

7. The tunnel light source according to claim 6, characterized in that, The first connection port (213) is provided in multiple ways and is respectively provided at two opposite ends of the main body (210); the two ends of the main body (210) provided with the first connection port (213) respectively abut against two opposite walls inside the outer shell (100); the second connection port (107) is provided in multiple ways and is respectively provided opposite to and connected to the multiple first connection ports (213); the connector is provided in multiple ways and is respectively passed through the opposite first connection port (213) and second connection port (107).

8. The tunnel light source according to claim 1, characterized in that, The length direction of the light source channel (102) is aligned with the width direction of the housing (100), the width direction of the light source channel (102) is aligned with the length direction of the housing (100), and the extension direction of the light source channel (102) is aligned with the height direction of the housing (100). The length direction, width direction, and height direction of the housing (100) are all perpendicular to each other.

9. The tunnel light source according to claim 1, characterized in that, The length direction of the first opening (104) is aligned with the width direction of the outer shell (100).

10. The tunnel light source according to claim 1, characterized in that, The length direction of the light source assembly (200) is aligned with the width direction of the housing (100).

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