A ring light

Abstract

The utility model relates to the technical field of light source structure discloses a kind of annular light source, including annular shell, C-shaped cooling flow channel is formed in the annular shell, the detection through-hole of the C-shaped cooling flow channel surrounds the annular shell;Cooling extension tooth is arranged in the C-shaped cooling flow channel, the cooling extension tooth extends along the C-shaped cooling flow channel, and the side edge of the cooling extension tooth is connected with the annular shell.The annular light source of the utility model improves the heat dissipation effect of annular shell.

Description

TECHNICAL FIELD

[0001] The utility model relates to light source structure technical field especially relates to a ring light source. BACKGROUND

[0002] With the development of the times, domestic machine vision detection technology has been widely applied in quality detection, and the ring light source is one of the series light sources commonly used in machine vision. The ring light source is a light source formed by the array of lamp beads on the PCB lamp plate in a conical shape, emitting light at a certain inclination angle and irradiating on the surface of the object to be tested.

[0003] The ring light source generally includes a ring-shaped shell and a PCB lamp plate, and the PCB lamp plate is installed on the ring-shaped shell to support the PCB lamp plate. However, for some specifications of the ring light source, the power of the PCB lamp plate is relatively large, which causes the ring-shaped shell to be unable to timely transfer heat, so that the temperature of the PCB lamp plate is too high and affects the actual light output effect.

[0004] Therefore, it is necessary to design a ring light source to improve the heat dissipation effect of the ring-shaped shell.

[0005] The above information is given as background information only to assist the understanding of the present disclosure, and does not determine or acknowledge whether any of the above content can be used as prior art with respect to the present disclosure. UTILITY MODEL CONTENT

[0006] The utility model provides a kind of ring light source, improve the heat dissipation effect of ring-shaped shell.

[0007] To achieve the above purpose, the utility model provides the following technical scheme:

[0008] A kind of ring light source, including ring-shaped shell, C-shaped cooling flow channel is formed in the ring-shaped shell, and the C-shaped cooling flow channel surrounds the detection through-hole of the ring-shaped shell;

[0009] Cooling extension tooth is arranged in the C-shaped cooling flow channel, the cooling extension tooth extends along the C-shaped cooling flow channel, and one side edge of the cooling extension tooth is connected with the ring-shaped shell.

[0010] Optionally, the ring-shaped shell includes a ring-shaped body and a shell cover plate mounted on the ring-shaped body to form the C-shaped cooling flow channel;

[0011] The ring-shaped shell has an annular inner conical surface for fitting the PCB lamp plate, one end of the cooling extension tooth is connected to the side wall of the C-shaped cooling flow channel close to the annular inner conical surface, and the other end of the cooling extension tooth has a cooling gap with the shell cover plate.

[0012] Optionally, the annular body is provided with an air inlet for connecting one end of the C-shaped cooling channel and an air outlet for connecting the other end of the C-shaped cooling channel.

[0013] Optionally, the centerline of the air inlet is aligned with the cooling...

[0014] One end face of the extension tooth coincides with the other end face of the cooling extension tooth.

[0015] Optionally, the cooling extension teeth have a wavy shape on one side near the outer casing cover.

[0016] Optionally, the annular body has a C-shaped groove, and the cooling extension teeth are connected to the bottom wall of the C-shaped groove;

[0017] The C-shaped groove has a sealing mounting groove at its opening, the sealing mounting groove surrounds the opening of the C-shaped groove, and a sealing rubber ring is installed in the sealing mounting groove.

[0018] The outer casing cover is fixedly connected to the annular body to press the sealing ring into the sealing mounting groove.

[0019] Optionally, a plurality of PCB lamp boards are spaced apart on the annular inner cone surface;

[0020] Several PCB lamp boards are arranged in a circumferential array around the center line of the detection through hole, and a focusing lens is installed on the PCB lamp boards.

[0021] Optionally, it also includes a perimeter of the housing and a diffuser plate;

[0022] One end of the outer shell is connected to the annular body, and the other end is connected to the diffuser plate. The diffuser plate is provided with a detection hole, which is coaxial with the detection through hole of the annular body.

[0023] Optionally, a plurality of arc-shaped grooves are provided on the side of the cooling extension tooth away from the detection through hole;

[0024] Along the airflow direction, a protrusion is provided on the rear edge of the arc-shaped groove, and one side wall of the protrusion and the inner wall of the arc-shaped groove are smoothly transitioned.

[0025] Optionally, the arc-shaped groove is a semi-cylindrical groove, and the length of the protrusion is less than the length of the semi-cylindrical groove.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The ring light source provided by this utility model features a C-shaped cooling channel within its ring-shaped outer shell. This C-shaped cooling channel surrounds the detection channel, allowing heat to be better transferred to the cooling medium within the C-shaped cooling channel. Furthermore, the addition of cooling extension teeth further increases the heat transfer area, enabling more heat to be carried away by the cooling medium within the C-shaped cooling channel. Therefore, the ring light source in this embodiment effectively improves the heat dissipation effect of the ring-shaped outer shell, effectively preventing overheating of the PCB light board.

[0028] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description

[0029] To more clearly illustrate the technical solutions 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a top view schematic diagram of the ring light source provided in an embodiment of this utility model;

[0031] Figure 2 yes Figure 1 A schematic diagram of the AA cross-sectional structure of the ring light source;

[0032] Figure 3 This is a bottom-view schematic diagram of the ring light source provided in an embodiment of this utility model;

[0033] Figure 4 This is a three-dimensional structural diagram of the annular body provided in an embodiment of the present utility model;

[0034] Figure 5 This is an exploded view of the ring light source provided in this embodiment of the utility model;

[0035] Figure 6 This is a schematic diagram of the cross-sectional structure of another cooling extension tooth provided in this embodiment of the present invention.

[0036] Reference numerals: 1. Annular outer shell; 101. C-shaped cooling channel; 1011. C-shaped groove; 1012. Sealing mounting groove; 1013. Sealing ring; 1001. Air inlet; 1002. Air outlet; 102. Inspection through hole; 103. Cooling extension teeth; 1031. Arc-shaped groove; 1032. Protrusion; 104. Annular inner conical surface; 11. Annular body; 12. Outer shell cover plate; 2. PCB lamp board; 3. Condensing lens; 4. Outer shell perimeter; 5. Diffuser plate. Detailed Implementation

[0037] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0038] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0039] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0040] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0041] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0042] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0043] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0044] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0045] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0046] In view of the aforementioned defects in existing ring light sources, the applicant, based on years of rich practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with the application of theoretical principles, actively conducted research and innovation in order to create a ring light source that can solve the defects in the existing technology and make the ring light source more practical. After continuous research, design, and repeated prototype production and improvement, this utility model with real practical value has finally been created.

[0047] Please refer to Figures 1 to 5 This utility model provides a ring-shaped light source, including a ring-shaped outer shell 1. A C-shaped cooling channel 101 is formed within the ring-shaped outer shell 1, surrounding a detection through-hole 102. In this embodiment, the C-shaped cooling channel 101 surrounds the detection through-hole 102, thereby allowing the heat from the ring-shaped outer shell 1 to be better transferred to the cooling medium within the C-shaped cooling channel 101, improving the overall temperature uniformity of the ring-shaped outer shell 1. The cooling medium can be a gaseous cooling medium or a liquid cooling medium. For example, the gaseous cooling medium can be low-temperature air or other low-temperature gases, and the liquid cooling medium can be cooling water, cooling oil, or other liquid cooling substances.

[0048] Cooling extension teeth 103 are provided in the C-shaped cooling channel 101. The cooling extension teeth 103 extend along the C-shaped cooling channel 101, and one side edge of the cooling extension teeth 103 is connected to the annular outer shell 1, that is, one side edge of the cooling extension teeth 103 is connected to one side wall of the C-shaped cooling channel 101. The connection of the cooling extension teeth 103 to one side wall of the C-shaped cooling channel 101 is equivalent to increasing the heat conduction and heat dissipation area of ​​the C-shaped cooling channel 101, thereby improving the cooling efficiency of the annular outer shell 1.

[0049] In summary, the annular light source in this embodiment, by providing a C-shaped cooling channel 101 within the annular housing 1, surrounds the detection channel 102, thereby enabling better heat transfer from the annular housing 1 to the cooling medium within the C-shaped cooling channel 101. Furthermore, the cooling extension teeth 103 further increase the heat transfer area, allowing more heat to be carried away by the cooling medium within the C-shaped cooling channel. Therefore, the annular light source in this embodiment effectively improves the heat dissipation effect of the annular housing 1 and effectively prevents the PCB light board mounted on the annular housing 1 from overheating.

[0050] Optionally, the annular housing 1 includes an annular body 11 and a housing cover 12 mounted on the annular body 11 to form a C-shaped cooling channel 101. The annular housing 1 has an annular inner conical surface 104 for fitting the PCB lamp board 2. One end of the cooling extension tooth 103 is connected to the side wall of the C-shaped cooling channel 101 near the annular inner conical surface 104, and the other end of the cooling extension tooth 103 has a cooling gap with the housing cover 12. Because one end of the cooling extension tooth 103 is connected to the side wall of the C-shaped cooling channel 101 near the annular inner conical surface 104, the heat from the PCB lamp board 2 can be more easily transferred to the cooling extension tooth 103, thereby improving cooling efficiency. The cooling gap between the other end of the cooling extension tooth 103 and the housing cover 12 exposes all three sides of the cooling extension tooth 103 to the detection through-hole 102, further increasing the heat dissipation area.

[0051] Optionally, the annular body 11 is equipped with an air inlet 1001 for connecting one end of the C-shaped cooling channel 101 and an air outlet 1002 for connecting the other end of the C-shaped cooling channel 101. In this embodiment, the cooling medium enters the C-shaped cooling channel 101 through the air inlet 1001 and flows out of the C-shaped cooling channel 101 through the air outlet 1002.

[0052] Optionally, the centerline of the air inlet 1001 coincides with one end face of the cooling extension tooth 103, and the centerline of the air outlet 1002 coincides with the other end face of the cooling extension tooth 103; as shown Figure 4 As shown, the cooling extension teeth 103 divide the C-shaped cooling channel 101 into a first branch channel closer to the detection through hole 102 and a second branch channel further away from the detection through hole 102. The centerline of the air inlet 1001 coincides with one end face of the cooling extension teeth 103, and the centerline of the air outlet 1002 coincides with the other end face of the cooling extension teeth 103. This ensures that the airflow in the first branch channel and the airflow in the second branch channel are basically consistent, allowing both sides of the cooling extension teeth 103 to be well cooled. The air inlet 1001 is connected to an air inlet nozzle, and the air outlet 1002 is connected to an air outlet nozzle.

[0053] Optionally, the cooling extension tooth 103 has a wavy edge near the outer casing cover 12, so that the top of the cooling extension tooth 103 can also have a good cooling effect.

[0054] Optionally, the annular body 11 has a C-shaped groove 1011, and the cooling extension teeth 103 are connected to the bottom wall of the C-shaped groove 1011; a sealing mounting groove 1012 is provided at the opening of the C-shaped groove 1011, the sealing mounting groove 1012 surrounds the opening of the C-shaped groove 1011, and a sealing ring 1013 is installed in the sealing mounting groove 1012; the outer cover plate 12 is fixedly connected to the annular body 11 to press the sealing ring 1013 into the sealing mounting groove 1012. In this embodiment, by providing the sealing mounting groove 1012 and the sealing ring 1013, the sealing effect of the C-shaped cooling channel 101 can be effectively improved, and the possibility of leakage can be reduced.

[0055] Optionally, a plurality of PCB lamp boards 2 are spaced apart on the annular inner conical surface 104; the plurality of PCB lamp boards 2 are arranged in a circumferential array around the center line of the detection through hole 102, and a condenser lens 3 is mounted on the PCB lamp board 2. In this embodiment, each PCB lamp board 2 is fixed to the annular inner conical surface 104 with screws. If one of the PCB lamp boards 2 has a positional deviation, the position of the PCB lamp board 2 can be adjusted individually or a new PCB lamp board 2 can be replaced. The condenser lens 3 has a focusing effect, which can effectively improve the light output effect.

[0056] Optionally, the ring light source also includes a housing perimeter 4 and a diffuser plate 5; one end of the housing perimeter 4 is connected to the ring body 11, and the other end is connected to the diffuser plate 5, and the diffuser plate 5 is provided with a detection hole, which is coaxial with the detection through hole 102 of the ring body 11.

[0057] Optionally, such as Figure 6 , Figure 6 The dashed line in the diagram indicates the location of the C-shaped cooling channel (101). Several arc-shaped grooves 1031 are provided on the side of the cooling extension tooth 103 away from the detection through-hole 102. Along the airflow direction, a protrusion 1032 is provided on the rear edge of the arc-shaped groove 1031, and one side wall of the protrusion 1032 smoothly transitions to the inner wall of the arc-shaped groove 1031. As the gas flows along the second branch channel, it flows into the arc-shaped groove 1031 under the obstruction of the protrusion 1032, then flows along the wall of the arc-shaped groove 1031, and finally flows out of the arc-shaped groove 1031 and continues to flow along the second branch channel. The arrangement of the arc-shaped groove 1031 and the protrusion 1032 further increases the heat dissipation area, significantly improving the cooling effect of low-speed and medium-speed airflows. It should also be noted that the protrusion height of the protrusion 1032 can be set according to actual needs, and the groove depth of the arc-shaped groove 1031 also needs to be set according to actual needs.

[0058] Optionally, the arc-shaped groove 1031 is a semi-cylindrical groove, and the length of the protrusion 1032 is less than the length of the semi-cylindrical groove. This allows the airflow flowing into the arc-shaped groove 1031 to exit from the portion of the protrusion 1032 that is not directly opposite the semi-cylindrical groove. For example, if both ends of the arc-shaped groove 1031 extend beyond the opposite sides of the protrusion 1032, then the main portion of the airflow that is blocked by the protrusion 1032 from flowing into the arc-shaped groove 1031 will exit from the opposite sides of the protrusion 1032, reducing airflow obstruction.

[0059] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A ring-shaped light source, characterized in that, It includes an annular shell (1), in which a C-shaped cooling channel (101) is formed, the C-shaped cooling channel (101) surrounding the detection through hole (102) of the annular shell (1); The C-shaped cooling channel (101) is provided with cooling extension teeth (103), which extend along the C-shaped cooling channel (101) and one side edge of the cooling extension teeth (103) is connected to the annular shell (1).

2. The ring light source according to claim 1, characterized in that, The annular outer shell (1) includes an annular body (11) and an outer shell cover plate (12) mounted on the annular body (11) to form the C-shaped cooling channel (101); The annular housing (1) has an annular inner conical surface (104) for fitting the PCB lamp board (2). One end of the cooling extension tooth (103) is connected to the side wall of the C-shaped cooling channel (101) near the annular inner conical surface (104). The other end of the cooling extension tooth (103) has a cooling gap with the housing cover plate (12).

3. The ring light source according to claim 2, characterized in that, The annular body (11) is equipped with an air inlet (1001) for connecting one end of the C-shaped cooling channel (101) and an air outlet (1002) for connecting the other end of the C-shaped cooling channel (101).

4. The ring light source according to claim 3, characterized in that, The centerline of the air inlet (1001) coincides with one end face of the cooling extension tooth (103), and the centerline of the air outlet (1002) coincides with the other end face of the cooling extension tooth (103).

5. The ring light source according to claim 2, characterized in that, The cooling extension teeth (103) have a wavy shape on one side near the outer casing cover (12).

6. The ring light source according to claim 2, characterized in that, The annular body (11) has a C-shaped groove (1011), and the cooling extension teeth (103) are connected to the bottom wall of the C-shaped groove (1011); The C-shaped groove (1011) has a sealing mounting groove (1012) at its opening, the sealing mounting groove (1012) surrounds the opening of the C-shaped groove (1011), and a sealing rubber ring (1013) is installed in the sealing mounting groove (1012). The outer casing cover (12) is fixedly connected to the annular body (11) to press the sealing ring (1013) into the sealing mounting groove (1012).

7. The ring light source according to claim 2, characterized in that, Several PCB lamp boards (2) are installed at intervals on the annular inner conical surface (104); Several PCB lamp boards (2) are arranged in a circumferential array around the center line of the detection through hole (102), and a condenser lens (3) is installed on the PCB lamp board (2).

8. The ring light source according to claim 2, characterized in that, It also includes the outer casing perimeter (4) and the diffuser plate (5); One end of the outer shell perimeter (4) is connected to the annular body (11), and the other end is connected to the diffuser plate (5). The diffuser plate (5) is provided with a detection hole, which is coaxial with the detection through hole (102) of the annular body (11).

9. The ring light source according to claim 1, characterized in that, The cooling extension tooth (103) has several arc-shaped grooves (1031) on the side away from the detection through hole (102); Along the airflow direction, a protrusion (1032) is provided on the rear edge of the arc-shaped groove (1031), and one side wall of the protrusion (1032) and the inner wall of the arc-shaped groove (1031) are smoothly transitioned.

10. The ring light source according to claim 9, characterized in that, The arc-shaped groove (1031) is a semi-cylindrical groove, and the length of the protrusion (1032) is less than the length of the semi-cylindrical groove.

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