Visual detection light source system and detection system

Abstract

The utility model relates to the field of detection equipment, in particular to a visual detection light source system and a detection system.The light source system comprises a light source and further comprises a closed shell, and the light source is arranged in the closed shell; the cooling gas system comprises a gas inlet, a gas outlet and a passage, the gas inlet and the gas outlet are formed in the closed shell, the passage is arranged in the closed shell, the passage is communicated with the gas inlet and the gas outlet, and the passage is filled with cooling gas. The detection system comprises an image acquisition device and the light source system. By arranging the closed shell, corrosive gas can be isolated, so that damage to the light source is reduced, and the service life of the light source is prolonged; furthermore, a cooling air system is arranged on the closed shell, so that the light source can be effectively cooled, the light source is suitable for high-temperature, corrosion and other severe detection environments, and the visual detection precision can be improved.

Description

Technical Field

[0001] The utility model relates to the field of detection equipment, in particular to a visual detection light source system and a detection system. Background Art

[0002] Visual inspection light sources play a crucial role in machine vision inspection systems, directly impacting image quality and the accuracy of subsequent processing. In some challenging inspection environments, such as those characterized by high temperatures and corrosion, existing light sources often overheat, affecting inspection accuracy. Furthermore, corrosive gas emissions can easily damage the light source, shortening its service life. Utility Model Content

[0003] The purpose of the present utility model is to overcome the shortcomings of the prior art in that the light source temperature is too high under harsh detection environments such as high temperature and corrosion, which affects the detection accuracy and service life, and to provide a visual detection light source system and a detection system.

[0004] In a first aspect, the present invention provides a visual detection light source system, comprising a light source, and further comprising

[0005] a closed housing, wherein the light source is placed in the closed housing;

[0006] The cooling air system includes an air inlet, an air outlet and a passage. The air inlet and the air outlet are arranged in the closed shell. The passage is placed in the closed shell, the passage connects the air inlet and the air outlet, and the passage is filled with cooling gas.

[0007] The utility model can isolate corrosive gases by providing a closed shell, thereby reducing damage to the light source and increasing the service life of the light source; further, by providing a cooling air system in the closed shell, the light source can be effectively cooled, making the light source suitable for harsh detection environments such as high temperature and corrosion, and can improve the accuracy of visual detection.

[0008] Preferably, two sets of the cooling air systems are provided, and the flow directions of the cooling air in the two cooling air systems are opposite, thereby improving the cooling effect.

[0009] Preferably, the light source system further includes a heat sink, and the heat sink is used to dissipate heat from the light source, thereby further reducing the temperature of the light source.

[0010] Preferably, a water cooling or air cooling passage is further provided inside the radiator.

[0011] Preferably, the closed housing comprises a stainless steel shell.

[0012] Preferably, the light source housing is provided with a lens plate, and the light emitting surface of the lens plate is provided with an optical microstructure, and the optical microstructure is used for light uniformity.

[0013] Preferably, the light source system further comprises a light guide plate and a diffusion plate, and the light emitted by the light source passes through the light guide plate and the diffusion plate in sequence.

[0014] Preferably, the light source system is a front light source system or a side light source system.

[0015] Preferably, the light source system is a point light source system, a line light source system, or a surface light source system.

[0016] Preferably, the closed housing comprises a glass plate, and the glass plate serves as a light emitting surface of the light source system.

[0017] In a second aspect, the present invention provides a detection system, comprising an image acquisition device and any one of the aforementioned visual detection light source systems.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The utility model can isolate corrosive gases by providing a closed shell, thereby reducing damage to the light source and increasing the service life of the light source; further, by providing a cooling air system in the closed shell, the light source can be effectively cooled, making the light source suitable for harsh detection environments such as high temperature and corrosion, and can improve the accuracy of visual detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the visual detection light source system described in Example 1 of the present utility model. Figure 1 .

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the visual detection light source system described in Example 1 of the present utility model. Figure 2 .

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the visual detection light source system described in Example 1 of the present utility model after a portion of the shell is hidden.

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the light source and lens plate described in Example 1 of the present utility model.

[0024] Figure 5 This is a diagram showing the heat dissipation simulation results of the visual detection light source system described in Example 1 of the present utility model.

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the visual detection light source system described in Example 2 of the present utility model. Figure 1 .

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the visual detection light source system described in Example 2 of the present utility model. Figure 2 .

[0027] Figure 8 This is a schematic diagram of the three-dimensional structure of the visual detection light source system described in Example 2 of the present utility model after a portion of the shell is hidden.

[0028] Figure 9 This is a schematic diagram of the three-dimensional structure of the light source described in Example 2 of the present utility model.

[0029] Figure 10 This is a diagram showing the heat dissipation simulation results of the visual detection light source system described in Example 2 of the present utility model.

[0030] Markings in the figure:

[0031] 1-light source, 2-enclosed housing, 21-stainless steel housing, 22-glass plate, 31-air inlet, 32-air outlet, 4-heat sink, 5-lens plate, 51-optical microstructure, 6-air inlet pipe, 61-first air inlet pipe, 62-second air inlet pipe, 7-air outlet pipe, 71-first air outlet pipe, 72-second air outlet pipe. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below with reference to specific embodiments. However, this should not be construed as limiting the scope of the present invention to the following embodiments. All technologies implemented based on the present invention fall within the scope of the present invention.

[0033] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating orientation or positional relationships such as "upper," "lower," "left," "right," "center," "inside," and "outside" are based on the orientation or positional relationships shown in the accompanying drawings, or are the orientation or positional relationships in which the product / device / apparatus of the present invention is placed when it is conventionally used. These terms of orientation or positional relationships are merely for the purpose of facilitating the description of the present invention or simplifying the description of the specific embodiments to facilitate a quick understanding of the solutions by technicians, and do not indicate or imply that a particular device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship. Therefore, they should not be understood as limitations on the present invention.

[0034] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simply understood that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", and "parallel", and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the present utility model.

[0035] In addition, the expressions “first”, “second”, “third”, etc. in the terms are merely used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.

[0036] In addition, in the description of the embodiments of the present invention, "several", "a plurality", and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0037] Furthermore, in the description of the technical solutions of this utility model, unless otherwise expressly specified / defined / restricted, the terms "disposed," "installed," "connected," "connected," "provided with," "laid," and "arranged" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections. They may be welding, riveting, bolting, threading, or other commonly used connection methods in the art. Such connections may be mechanical, electrical, or communication connections; they may be direct connections, indirect connections through an intermediate medium, or internal connections between two components.

[0038] Example 1

[0039] like Figure 1-3 As shown, a visual inspection light source system includes a light source 1, a closed shell 2 and a cooling air system.

[0040] The light source 1 is used to emit light, and an LED light source can be selected. The light source 1 can be a point light source, a line light source, or a surface light source. In this embodiment, the light source 1 is a line light source. The light source 1 is placed in the closed housing 2.

[0041] In one or more embodiments, Figure 4As shown, the light source system can be a front-emitting light source system. The light source 1 adopts an LED light board and can be provided with a lens board 5. The lens board 5 includes a plurality of lenses. The lens cover is provided on the lamp beads of the LED light board. The number and position of the lenses can correspond to the number and position of the lamp beads one by one, so that the lens board 5 can effectively control the light and improve the light output quality of the light source 1. Furthermore, an optical microstructure 51 can be provided on the light output surface of the lens board 5. The optical microstructure 51 is used to even the light, thereby further improving the uniformity of the output light and facilitating the improvement of the visual detection accuracy. For example, the optical microstructure 51 can be convex or concave, and the shape can be an arc or a free-form surface.

[0042] A radiator 4 may be provided at the light source 1 to dissipate heat from the light source 1. For example, a water cooling or air cooling passage may be provided inside the radiator 4 to dissipate heat. The provision of the radiator 4 facilitates heat dissipation from the light source 1, thereby increasing the service life of the light source 1.

[0043] The enclosed housing 2 is positioned over the light source 1 and defines a light-emitting surface for emitting light from the light source 1 for visual inspection. In some embodiments, to accommodate harsh inspection environments such as high temperatures and corrosion, the enclosed housing 2 may include a stainless steel shell 21 and a glass plate 22, with the glass plate 22 serving as the light-emitting surface of the light source system. The enclosed housing 2 isolates the light source from corrosive gases, thereby reducing damage to the light source and increasing its service life.

[0044] The cooling air system includes an air inlet 31, an air outlet 32, and a passage. The air inlet 31 and the air outlet 32 ​​are disposed in the enclosed housing 2. The passage is disposed within the enclosed housing 1, connecting the air inlet 31 and the air outlet 32. The passage is filled with cooling gas. By providing the cooling air system within the enclosed housing 2, the cooling gas can effectively cool the light source 1, making it suitable for use in harsh inspection environments such as high temperatures and corrosion, and improving visual inspection accuracy.

[0045] In one or more embodiments, two sets of cooling gas systems may be provided, and the flow directions of the cooling gases in the two cooling gas systems are opposite, thereby further enhancing the cooling effect.

[0046] like Figure 1-3 In the linear light source shown, two cooling air systems are formed. The two cooling air systems are arranged on both sides of the light source 1 , and the cooling passage of each cooling air system is arranged along the length direction of the linear light source.

[0047] Each cooling air system includes an inlet pipe 6, an outlet pipe 7, and a cooling passageway located between the inlet pipe 6 and the outlet pipe 7. The inlet pipe 6 is connected to the air inlet 31, and the outlet pipe 7 is connected to the air outlet 32. For example, the first cooling air system consists of a first inlet pipe 61, a first outlet pipe 71, and a first cooling passageway, while the second cooling air system consists of a second inlet pipe 62, a second outlet pipe 72, and a second cooling passageway. Furthermore, the first inlet pipe 61 and the second inlet pipe 62 can be placed on opposite sides of the linear light source along its length, so that the cooling air in the two cooling air systems flows in opposite directions.

[0048] like Figure 5 As shown, in the heat dissipation simulation, the ambient temperature is 80 degrees Celsius, and the simulated temperature at the lamp bead position is about 60-62 degrees Celsius. It can be seen that the cooling air system of the present invention has a good cooling effect on the light source.

[0049] Example 2

[0050] The difference between this embodiment and embodiment 1 is that the light source 1 in this embodiment is a surface light source, and the light source 1 is a side-emitting light source.

[0051] like Figure 6-9 As shown, a light guide plate and a diffusion plate may be provided at the light source 1 , and the light emitted by the light source 1 passes through the light guide plate and the diffusion plate in sequence and is finally emitted through the light emitting surface.

[0052] The difference between this embodiment and embodiment 1 is that the cooling air system of the surface light source of this embodiment is arranged on the periphery of the light source 1 .

[0053] like Figure 10 As shown, in the heat dissipation simulation, the ambient temperature is 80 degrees Celsius, the simulated gas flow rate is 40L / Min, and the simulated temperature at the lamp bead position is about 25 degrees Celsius. It can be seen that the cooling air system of the present invention has a good cooling effect on the light source.

[0054] Example 3

[0055] A detection system includes an image acquisition device and a visual detection light source system as described in Example 1 or Example 2.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A visual inspection light source system, comprising a light source (1), characterized in that: Also includes A closed housing (2), wherein the light source (1) is placed in the closed housing (2); A cooling air system comprises an air inlet (31), an air outlet (32) and a passage, wherein the air inlet (31) and the air outlet (32) are arranged in the closed shell (2), the passage is placed in the closed shell (2), the passage is connected to the air inlet (31) and the air outlet (32), and the passage is filled with cooling gas.

2. A visual inspection light source system according to claim 1, characterized in that: Two cooling air systems are provided, and the cooling air in the two cooling air systems flows in opposite directions.

3. A visual inspection light source system according to claim 1, characterized in that: It also includes a heat sink (4), which is used to dissipate heat for the light source (1).

4. A visual inspection light source system according to claim 3, characterized in that: A water cooling or air cooling passage is also provided inside the radiator (4).

5. The visual inspection light source system according to claim 1, characterized in that: The closed housing (2) comprises a stainless steel shell (21).

6. A visual inspection light source system according to claim 1, characterized in that: The outer cover of the light source (1) is provided with a lens plate (5), and the light-emitting surface of the lens plate (5) is provided with an optical microstructure (51), and the optical microstructure (51) is used for light uniformity.

7. The visual inspection light source system according to claim 1, characterized in that: It also includes a light guide plate and a diffusion plate, and the light emitted by the light source (1) passes through the light guide plate and the diffusion plate in sequence.

8. The visual inspection light source system according to claim 1, characterized in that: The light source system is a front light emitting light source system or a side light emitting light source system, and / or the light source system is a point light source system or a line light source system or a surface light source system.

9. A visual inspection light source system according to any one of claims 1 to 8, characterized in that: The closed housing (2) comprises a glass plate (22), and the glass plate serves as a light-emitting surface of the light source system.

10. A detection system comprising an image acquisition device, characterized in that: It also includes a visual detection light source system as described in any one of claims 1-9.

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