Light source cooling device, lighting device and industrial camera

Abstract

The application relates to the technical field of cooling devices, in particular to a light source cooling device, a lighting device and an industrial camera. The light source cooling device is composed of a circulating pipe, a heat exchange medium container, an outer protective cover, a heat conduction sheet and a fan. The circulating pipe circulates heat exchange medium, and the heat exchange medium container is connected to the circulating pipe to pump the medium. The outer protective cover is sleeved outside the container to form an annular chamber, and an air inlet and an air outlet are arranged on the outer protective cover. The heat conduction sheet is equidistantly arranged in the annular chamber. The fan is arranged close to the air inlet, and the outer protective cover close to the fan is provided with a narrowing structure. The device effectively takes away the heat of the parts to be cooled through the cooperation of the structures, slows down aging and prolongs the service life. Specifically, the heat conduction sheet increases the heat dissipation area, the fan accelerates the air flow to dissipate heat, the narrowing structure increases the air flow rate to enhance heat dissipation, and the cooling circulation is formed to improve the overall effect.

Description

Technical Field

[0001] This application relates to the field of cooling device technology, and more specifically, to light source cooling devices, lighting equipment, and industrial cameras. Background Technology

[0002] In the field of industrial automation inspection, CCD industrial cameras have become key equipment due to their high-precision image acquisition capabilities, and the light source board, as its core component, directly affects the image acquisition quality and inspection accuracy due to its operational stability.

[0003] In existing technologies, light source boards generate a large amount of heat due to their own power loss during long-term continuous operation. If this heat cannot be dissipated in time, it will lead to wavelength shift, brightness decay, and even accelerated aging of the light source board. This, in turn, will cause problems such as noise and decreased contrast in image acquisition, seriously affecting the stability and reliability of CCD industrial camera inspection systems. Currently, common heat dissipation methods for light source boards mainly include air cooling and simple metal thermal conductivity. Air cooling removes heat by adding a fan to force convection, but it suffers from problems such as high noise, easy dust accumulation and blockage of air ducts, and poor applicability in closed or highly clean industrial environments. Simple metal thermal conductivity relies on a single heat sink to conduct heat, and due to its limited heat dissipation area and low heat conduction efficiency, it is difficult to meet the heat dissipation requirements of high-power light source boards. Utility Model Content

[0004] The purpose of this application is to provide a light source cooling device, lighting equipment, and industrial camera, which have good heat dissipation performance and long service life.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a light source cooling device, comprising: A circulation pipe through which a heat exchange medium circulates; A heat exchange medium container, which is connected to the circulation pipe to circulate and pump the heat exchange medium into the circulation pipe; An outer protective cover is fitted over the heat exchange medium container and an annular chamber exists between the two. The outer protective cover is provided with an air inlet and an air outlet. A plurality of heat-conducting plates are evenly distributed around the circumference of the heat exchange medium container and are located in the annular chamber; A fan is disposed in the outer cover and near the air inlet. The fan is used to accelerate the airflow on the outer wall of the heat-conducting plate. The outer cover has a narrowing structure near the fan.

[0006] In an optional embodiment, a lower heat-conducting plate is also included, which abuts against the circulation pipe, and the heat exchange medium in the circulation pipe exchanges heat with the lower heat-conducting plate through the outer wall of the circulation pipe.

[0007] In an optional embodiment, an upper heat-conducting plate is further included that abuts against the circulation pipe. The upper heat-conducting plate and the lower heat-conducting plate are located on both sides of the circulation pipe. The upper heat-conducting plate and the lower heat-conducting plate are provided with a groove for accommodating the circulation pipe. A portion of the wall of the groove is formed on the end face of the upper heat-conducting plate near the lower heat-conducting plate, and another portion of the wall of the groove is formed on the end face of the lower heat-conducting plate near the upper heat-conducting plate.

[0008] In an optional embodiment, the device further includes a mounting tube and a magnetic pin. At least two mounting tubes are fixedly connected to the lower heat-conducting plate, and two magnetic pins are provided accordingly. The upper heat-conducting plate is provided with a socket, and the magnetic pins are inserted into the socket of the upper heat-conducting plate and threadedly connected to the mounting tube, so that the upper heat-conducting plate is fixed relative to the lower heat-conducting plate.

[0009] In an optional embodiment, a support ring is also included, which passes through the plurality of heat-conducting sheets and is fixedly connected to the heat-conducting sheets.

[0010] In an optional embodiment, the heat exchange medium container is connected to the circulation pipe via an inlet pipe that supplies heat exchange medium to the circulation pipe and an outlet pipe that discharges heat exchange medium from the circulation pipe. The inlet of the inlet pipe extends to the bottom of the heat exchange medium container, and the outlet of the outlet pipe is located at the top inside the heat exchange medium container.

[0011] In an optional embodiment, the air inlet is configured as an elongated through-hole structure.

[0012] In an optional embodiment, the air outlet is configured as a plurality of through holes equidistantly distributed around the outer protective cover.

[0013] Secondly, the present invention provides a lighting device, including a light source plate and a light source cooling device as described in any of the foregoing embodiments, wherein the circulation pipe of the light source cooling device is used to cool the light source plate.

[0014] Thirdly, this utility model provides an industrial camera, including an image acquisition module and a lighting device as described in the foregoing embodiments.

[0015] The light source cooling device provided in this application effectively removes heat from the components to be cooled by the coordinated operation of a circulation pipe, a heat exchange medium container, an outer protective cover, heat-conducting fins, and a fan, thus slowing down their aging and extending their service life. Specifically, the heat-conducting fins increase the heat dissipation area, and the fan forces outside air into the outer protective cover through the air inlet. After exchanging heat with the heat-conducting fins, the air is discharged from the air outlet, accelerating heat dissipation. The outer protective cover has a narrowing structure near the fan to accelerate the airflow and further enhance the heat dissipation effect of the heat-conducting fins. The heat-conducting fins exchange heat with the heat exchange medium container, cooling the heat exchange medium within. The low-temperature medium enters the circulation pipe to cool the components to be cooled before flowing back, forming an effective cooling cycle and improving the overall cooling effect.

[0016] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure from one perspective of one embodiment of the lighting device provided in this application; Figure 2 A partial cross-sectional view from one perspective of one embodiment of the lighting device provided in this application; Figure 3 Exploded view of a portion of the structure of one embodiment of the lighting device provided in this application; Figure 4 A schematic diagram illustrating the assembly process of a portion of the structure of one embodiment of the lighting device provided in this application; Figure 5 for Figure 4 A magnified view of a section at point A in the middle; Figure 6 This is a schematic diagram of a portion of the structure of one embodiment of the lighting device provided in this application.

[0019] icon: 1-Light source plate; 2-Lower heat conduction plate; 3-Upper heat conduction plate; 4-Pipe groove; 5-Circulation pipe; 6-Installation pipe; 7-Magnetic pin; 8-Heat exchange medium container; 9-Outer protective cover; 10-Heat conduction plate; 11-Support ring; 12-Narrowing structure; 13-Fan; 14-Air inlet; 15-Air outlet; 16-Tank lid; 17-Water pump; 18-Inlet pipe; 19-Discharge pipe. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] In a first aspect, embodiments of this application provide a light source cooling device, including a circulation pipe 5, a heat exchange medium container 8, an outer protective cover 9, a heat-conducting plate 10, and a fan 13.

[0024] like Figures 1 to 3 As shown, a heat exchange medium circulates through the circulation pipe 5. Exemplarily, the heat exchange medium is water, heat transfer oil, ethylene glycol, propylene glycol, air, or refrigerant, etc.

[0025] like Figure 2 As shown, the heat exchange medium container 8 is connected to the circulation pipe 5 to circulate and pump the heat exchange medium into the circulation pipe 5. The heat exchange medium exchanges heat with the components to be temperature controlled in the circulation pipe 5 and then flows back to the heat exchange medium container 8.

[0026] like Figure 2 As shown, the outer protective cover 9 is fitted outside the heat exchange medium container 8 and there is an annular chamber between the two. The outer protective cover 9 is provided with an air inlet 14 and an air outlet 15.

[0027] like Figure 2As shown, multiple heat-conducting plates 10 are evenly distributed around the heat exchange medium container 8 and located in an annular chamber. The outer protective cover 9 can protect the heat-conducting plates 10, reduce the collision deformation of the heat-conducting plates 10, and improve their service life.

[0028] The heat-conducting plate 10 is fixedly connected to the outer protective cover 9 and the heat exchange medium container 8. The fixing method is, for example, welding, snap-fitting or integral molding.

[0029] like Figure 2 As shown, the fan 13 is installed in the outer cover 9 and near the air inlet 14. The fan 13 is used to accelerate the airflow on the outer wall of the heat conduction plate 10.

[0030] like Figure 2 As shown, the outer cover 9 has a narrowing structure 12 near the fan 13. Exemplarily, the outer cover 9 is configured as a sleeve, and the inner wall of the outer cover 9 is concave in the axial direction at the narrowing structure 12. Except for the narrowing structure 12, the inner diameter of the outer cover 9 tends to be uniform, and the inner diameter of the outer cover 9 at the narrowing structure 12 is smaller than the inner diameter at other locations.

[0031] For example, during the cooling process, outside air (whose temperature is lower than that of the air inside the outer casing 9) enters the outer casing 9 through the air inlet 14. The fan 13 blows the air inside the outer casing 9 onto the heat-conducting fins 10. After exchanging heat with the heat-conducting fins 10, the air is discharged from the air outlet 15. When the fan 13 draws air from the outer casing 9, the air is accelerated after passing through the narrowing structure 12, thereby increasing the airflow rate and further increasing the heat dissipation of the heat-conducting fins 10. The heat-conducting fins 10 exchange heat with the heat exchange medium container 8 to cool the heat exchange medium container 8 and the heat exchange medium in the heat exchange medium container 8. The lower-temperature heat exchange medium in the heat exchange medium container 8 is supplied to the circulation pipe 5 to cool the circulation pipe 5 and the parts to be cooled that are in contact with the circulation pipe 5. The lower-temperature heat exchange medium is heated and flows back into the heat exchange medium container 8. The heating process is similar, except that the temperature of the outside air entering the outer casing 9 is higher than that of the air inside the outer casing 9.

[0032] like Figure 2 As shown, the fan 13 is located at the end of the heat-conducting plate 10 to increase the air blowing area.

[0033] In this application, the combination of structures such as circulation pipe 5, heat exchange medium container 8, outer protective cover 9, heat conduction plate 10 and fan 13 can effectively remove the heat generated by the components to be cooled (such as light source board 1), slow down aging and improve service life.

[0034] In this application, the heat-conducting plate 10 increases the heat dissipation area. The fan 13 accelerates the airflow on the outer wall of the heat-conducting plate 10. Outside air enters the outer cover 9 from the air inlet 14, is blown onto the heat-conducting plate 10 by the fan 13, exchanges heat with the heat-conducting plate 10, and is discharged from the air outlet 15, thus accelerating heat dissipation.

[0035] In this application, the outer cover 9 is provided with a narrowing structure 12 near the fan 13. The air is accelerated after passing through the narrowing structure 12, which increases the air flow rate and further enhances the heat dissipation effect of the heat conduction plate 10.

[0036] In this application, the heat-conducting plate 10 exchanges heat with the heat exchange medium container 8, cooling the heat exchange medium container 8 and the heat exchange medium therein. After the lower-temperature heat exchange medium is supplied to the circulation pipe 5, it cools down the circulation pipe 5 and the parts to be cooled that are in contact with the circulation pipe 5. The heated heat exchange medium flows back into the heat exchange medium container 8, forming an effective cooling cycle and improving the overall cooling effect.

[0037] like Figure 3 and Figure 4 As shown, in one embodiment, the light source cooling device further includes a lower heat-conducting plate 2, which abuts against the circulation pipe 5. The heat exchange medium in the circulation pipe 5 exchanges heat with the lower heat-conducting plate 2 through the outer wall of the circulation pipe 5. The lower heat-conducting plate 2 increases the temperature control area of ​​the circulation pipe 5 and can also protect the circulation pipe 5.

[0038] like Figure 3 and Figure 4 As shown, in one embodiment, the light source cooling device further includes an upper heat-conducting plate 3 that abuts against the circulation pipe 5. The upper heat-conducting plate 3 and the lower heat-conducting plate 2 are located on both sides of the circulation pipe 5. The upper heat-conducting plate 3 and the lower heat-conducting plate 2 are provided with a tube groove 4 for accommodating the circulation pipe 5. A part of the tube wall of the tube groove 4 is opened on the end face of the upper heat-conducting plate 3 near the lower heat-conducting plate 2, and another part of the tube wall of the tube groove 4 is opened on the end face of the lower heat-conducting plate 2 near the upper heat-conducting plate 3.

[0039] The groove 4 is used to limit the displacement of the circulation pipe 5, reduce the impact and material fatigue damage caused by the shaking of the circulation pipe 5, and improve its service life.

[0040] like Figure 4 and Figure 5 As shown, in one embodiment, the light source cooling device further includes a mounting tube 6 and a magnetic pin 7. At least two mounting tubes 6 are fixedly connected to the lower heat-conducting plate 2, and two magnetic pins 7 are correspondingly provided. The upper heat-conducting plate 3 is provided with a socket, and the magnetic pin 7 is inserted into the socket of the upper heat-conducting plate 3 and threadedly connected to the mounting tube 6 so that the upper heat-conducting plate 3 is fixed relative to the lower heat-conducting plate 2.

[0041] For example, the magnetic pin 7 has a double frustum structure. After the magnetic pin 7 is inserted into the mounting tube 6, the upper part is used to limit the pressure of the upper heat-conducting plate 3, so as to fix the lower heat-conducting plate 2 and the upper heat-conducting plate 3 on the surface of the component to be cooled.

[0042] For example, the lower heat-conducting plate 2 and the upper heat-conducting plate 3 are configured as rectangular plate structures. For example, two mounting tubes 6 are provided, one located at one corner of the lower heat-conducting plate 2 and the other at the other corner, with two corresponding magnetic pins 7, one magnetic pin 7 installed on each mounting tube 6; in another embodiment, four mounting tubes 6 are provided, each located at one of the four corners of the lower heat-conducting plate 2, with four corresponding magnetic pins 7, one magnetic pin 7 installed on each mounting tube 6. Of course, the lower heat-conducting plate 2 and the upper heat-conducting plate 3 can also be configured in other shapes, such as circular, pentagonal, or hexagonal, and the number of mounting tubes 6 and magnetic pins 7 can also be different, such as five, six, or seven.

[0043] To increase the installation strength of the support ring 11, such as Figure 6 As shown, in one embodiment, the light source cooling device further includes a support ring 11, which passes through a plurality of heat-conducting sheets 10 and is fixedly connected to the heat-conducting sheets 10, such as by welding, snap-fitting or gluing.

[0044] For example, such as Figure 6 As shown, the heat-conducting plate 10 has two ends, each of which is provided with a support ring 11.

[0045] like Figure 2 As shown, in one embodiment, the heat exchange medium container 8 is connected to the circulation pipe 5 via an inlet pipe 18 and an outlet pipe 19. The inlet pipe 18 connects the heat exchange medium inlet of the heat exchange medium container 8 and the circulation pipe 5, and the outlet pipe 19 connects the heat exchange medium outlet of the heat exchange medium container 8 and the circulation pipe 5. A water pump 17 is installed on the inlet pipe 18, and the water pump 17 pumps the heat exchange medium in the heat exchange medium container 8 to the circulation pipe 5 through the inlet pipe 18. The heat exchange medium in the circulation pipe 5 flows back to the heat exchange medium container 8 through the outlet pipe 19. The inlet of the inlet pipe 18 extends to the bottom of the heat exchange medium container 8, and the outlet of the outlet pipe 19 is located at the top inside the heat exchange medium container 8.

[0046] For example, the heat exchange medium container 8 has an opening, at which a lid 16 is detachably installed, and an inlet pipe 18 and an outlet pipe 19 are fixed to the lid 16.

[0047] like Figure 1 and Figure 2 As shown, in one embodiment, the air inlet 14 is configured as an elongated through-hole structure to increase the air intake volume.

[0048] like Figure 1 and Figure 2 As shown, in one embodiment, the air outlet 15 is configured as a plurality of through holes equidistantly distributed around the outer cover 9 to improve exhaust efficiency.

[0049] Secondly, embodiments of this application also provide a lighting device, including a light source board 1 and a light source cooling device as described in any of the above embodiments, wherein the circulation pipe 5 of the light source cooling device is used to cool the light source board 1.

[0050] For example, the lower heat-conducting plate 2 is fixedly connected to the light source plate 1, and the lower heat-conducting plate 2 can cool the light source plate 1; the fixed connection method is, for example, welding, gluing, snap-fitting or bolt connection.

[0051] For example, the lower heat-conducting plate 2 is provided with a silicone coating at the end near the light source plate 1 to increase the heat transfer efficiency between the lower heat-conducting plate 2 and the light source plate 1.

[0052] Thirdly, embodiments of this application also provide an industrial camera, including an image acquisition module and a lighting device as described in the above embodiments.

[0053] The image acquisition module is used to acquire images, and the lighting equipment is used to provide supplementary lighting to the image acquisition area to improve the quality of the images acquired by the image acquisition module.

[0054] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0055] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A light source cooling device, characterized in that, include: A circulation pipe (5) through which a heat exchange medium is circulated; A heat exchange medium container (8) is connected to the circulation pipe (5) to circulate and pump the heat exchange medium into the circulation pipe (5); An outer protective cover (9) is fitted over the heat exchange medium container (8) and there is an annular chamber between them. An air inlet (14) and an air outlet (15) are provided on the outer protective cover (9). Heat-conducting plates (10) are evenly distributed around the heat exchange medium container (8) at equal intervals and located in the annular chamber. A fan (13) is disposed in the outer cover (9) and near the air inlet (14). The fan (13) is used to accelerate the air flow on the outer wall of the heat-conducting plate (10). The outer cover (9) is provided with a narrowing structure (12) near the fan (13).

2. The light source cooling device according to claim 1, characterized in that, It also includes a lower heat-conducting plate (2), which abuts against the circulation pipe (5), and the heat exchange medium in the circulation pipe (5) exchanges heat with the lower heat-conducting plate (2) through the outer wall of the circulation pipe (5).

3. The light source cooling device according to claim 2, characterized in that, It also includes an upper heat-conducting plate (3) that abuts against the circulation pipe (5). The upper heat-conducting plate (3) and the lower heat-conducting plate (2) are located on both sides of the circulation pipe (5). The upper heat-conducting plate (3) and the lower heat-conducting plate (2) are provided with pipe grooves (4) for accommodating the circulation pipe (5). A part of the pipe wall of the pipe groove (4) is opened on the end face of the upper heat-conducting plate (3) near the lower heat-conducting plate (2), and another part of the pipe wall of the pipe groove (4) is opened on the end face of the lower heat-conducting plate (2) near the upper heat-conducting plate (3).

4. The light source cooling device according to claim 3, characterized in that, It also includes an installation tube (6) and a magnetic pin (7). At least two installation tubes (6) are fixedly connected to the lower heat-conducting plate (2). Two magnetic pins (7) are provided accordingly. The upper heat-conducting plate (3) is provided with a socket. The magnetic pin (7) is inserted into the socket of the upper heat-conducting plate (3) and threadedly connected to the installation tube (6) so that the upper heat-conducting plate (3) is fixed relative to the lower heat-conducting plate (2).

5. The light source cooling device according to claim 1, characterized in that, It also includes a support ring (11) that passes through the plurality of heat-conducting sheets (10) and is fixedly connected to the heat-conducting sheets (10).

6. The light source cooling device according to claim 1, characterized in that, The heat exchange medium container (8) is connected to the circulation pipe (5) by an inlet pipe (18) for supplying heat exchange medium to the circulation pipe (5) and an outlet pipe (19) for discharging heat exchange medium from the circulation pipe (5). The inlet of the inlet pipe (18) extends to the bottom of the heat exchange medium container (8), and the outlet of the outlet pipe (19) is located at the top inside the heat exchange medium container (8).

7. The light source cooling device according to claim 1, characterized in that, The air inlet (14) is configured as a long strip-shaped through hole structure.

8. The light source cooling device according to claim 1, characterized in that, The air outlet (15) is configured as a plurality of through holes equidistantly distributed around the outer protective cover (9).

9. A lighting device, characterized in that, It includes a light source plate (1) and a light source cooling device as described in any one of claims 1 to 8, wherein the circulation pipe (5) of the light source cooling device is used to cool the light source plate (1).

10. An industrial camera, characterized in that, It includes an image acquisition module and the lighting device as described in claim 9.

Images