Linear scanning light source

Abstract

The utility model relates to the technical field of light source structures, and discloses a line scanning light source, which comprises an arc-shaped shell provided with two arc-shaped grooves which are symmetrical about the central plane of the arc-shaped shell; the light emitting units are installed in the two arc-shaped grooves correspondingly, and the two light emitting units are symmetrical about the center face. The light emitting unit comprises an arc-shaped light gathering body installed at a groove opening of the arc-shaped groove and an arc-shaped lamp panel installed in the arc-shaped groove. The arc-shaped lamp panel obliquely emits light rays to the arc-shaped light condensing body, and the light rays form arc-shaped light spots on the arc surface of the workpiece after passing through the arc-shaped light condensing body; and the control module is electrically connected with each light emitting unit, and the light emitting units can be started and stopped independently. According to the linear scanning light source, a formed arc-shaped light spot can be overlapped on another arc-shaped light spot, and the illumination intensity on the arc surface of a workpiece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of light source structures, in particular to a line scanning light source. Background Art

[0002] Machine vision uses machines to replace human eyes for measurement and judgment, and light source is an important factor affecting machine vision. Light source will directly determine the quality of image data and application effect.

[0003] Chinese utility model patent application number CN201921472325.4 discloses a curved line-scanning light source device comprising a curved circuit board, a light emitter, and a curved concentrator. The light emitter is mounted on the curved circuit board, and the curved concentrator is positioned over the light emitter. The curved concentrator is used to converge the light emitted by the light emitter into a curved light spot, thereby enabling the detection of workpieces with curved surfaces. Existing curved line-scanning light source devices emit light vertically downward, making it impossible to superimpose a curved light spot formed by another curved line-scanning light source on the same curved surface of a workpiece, making it difficult to meet the need for stronger illumination intensity on the curved surface of the workpiece.

[0004] In view of this, it is necessary to design a line scanning light source that can superimpose the formed arc-shaped light spot on another arc-shaped light spot, thereby helping to improve the light intensity on the arc surface of the workpiece.

[0005] The above information is presented as background information only to assist with an understanding of the present disclosure and is not a determination or admission that any of the above may be applicable as prior art with respect to the present disclosure. Utility Model Content

[0006] The utility model provides a line scanning light source, which can enable the formed arc-shaped light spot to be at least partially superimposed on another arc-shaped light spot, thereby improving the illumination intensity on the arc surface of a workpiece.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A line scanning light source, comprising:

[0009] The arc-shaped shell is provided with two arc-shaped grooves, and the two arc-shaped grooves are symmetrical about the center plane of the arc-shaped shell;

[0010] A light emitting unit is installed in each of the two arc-shaped grooves, and the two light emitting units are symmetrical about the center plane; the light emitting unit includes an arc-shaped concentrator installed at the notch of the arc-shaped groove and an arc-shaped light board installed in the arc-shaped groove; the arc-shaped light board obliquely emits light toward the arc-shaped concentrator, and after the light passes through the arc-shaped concentrator, an arc-shaped light spot is formed on the arc surface of the workpiece, and the two arc-shaped light spots can at least partially overlap;

[0011] A control module is electrically connected to each light emitting unit respectively, and the light emitting unit can be started and stopped individually.

[0012] Optionally, the arc-shaped shell is further formed with a water cooling channel, and a plurality of heat dissipation fins extending into the water cooling channel are arranged on the bottom wall of the arc-shaped lamp panel.

[0013] The heat dissipation fins extend along the direction of the water cooling channel.

[0014] Optionally, when the two light emitting units emit light, the arc-shaped light spots formed by the two light emitting units on the arc surface of the workpiece at least partially overlap.

[0015] Optionally, the groove bottom wall of the arc-shaped groove is an inclined arc surface.

[0016] The arc-shaped lamp panel comprises an arc-shaped circuit board and lamp beads mounted on the arc-shaped circuit board, and the arc-shaped circuit board is attached to the groove bottom wall.

[0017] Optionally, a plurality of arc-shaped heat dissipation protrusions are arranged on the arc-shaped outer wall surface of the arc-shaped shell.

[0018] Optionally, a closed end plate is mounted at the end of the arc-shaped shell, and a water inlet and outlet connector is mounted on the closed end plate.

[0019] Optionally, the arc-shaped shell is an integral structure.

[0020] Optionally, the arc-shaped shell has a partition plate for separating the two arc-shaped grooves, and first arc-shaped positioning grooves for positioning the arc-shaped light collector are arranged on the opposite sides of the partition plate.

[0021] Optionally, the arc-shaped shell further comprises a main body part and an outer clamping plate part arranged opposite to the partition plate.

[0022] The outer clamping plate part is mounted on the main body part, and the outer clamping plate part is provided with a second arc-shaped positioning groove opposite to the first arc-shaped positioning groove, and the arc-shaped light collector is clamped by the first arc-shaped positioning groove and the second arc-shaped positioning groove.

[0023] Optionally, the outer clamping plate part is rotationally connected to the main body part.

[0024] The outer clamping plate part can be rotated to an angle perpendicular to the partition plate.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] The linear scanning light source provided by the utility model, by making two light emitting units face each other about the center surface of the arc-shaped shell, then the light emitting units obliquely emit light on the arc surface of the workpiece to form arc-shaped light spots, so that the linear scanning light source can obliquely emit light to the left on the arc surface of the workpiece to form arc-shaped light spots, and can obliquely emit light to the right on the arc surface of the workpiece to form arc-shaped light spots, thereby conveniently at least partially overlapping the arc-shaped light spots formed by another linear scanning light source, so as to improve the illumination intensity on the workpiece.

[0027] The utility model has other characteristics and advantages, which will be apparent from or set forth in more detail in the drawings and subsequent detailed description incorporated herein, which together serve to explain certain principles of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0029] Figure 1 It is the three-dimensional structure schematic diagram of the linear scanning light source provided by the utility model embodiment when being located above the workpiece;

[0030] Figure 2 It is the front view schematic diagram of the linear scanning light source provided by the utility model embodiment when being located above the workpiece;

[0031] Figure 3 It is Figure 2 The A-A cross section structure schematic diagram of the linear scanning light source in it;

[0032] Figure 4 It is Figure 1 The structure schematic diagram of the structure hiding a closed end plate in it.

[0033] Reference signs: 1, arc-shaped shell;101, center surface;102, arc-shaped heat dissipation protrusion;103, partition;104, main body part;105, outer clamping plate part;11, arc-shaped groove;12, water cooling channel;121, heat dissipation fin;2, light emitting unit;21, arc-shaped light collector;22, arc-shaped lamp plate;3, closed end plate;4, water inlet and outlet connector. DETAILED DESCRIPTION

[0034] To explain possible application scenarios, technical principles, specific implementation schemes, and the purposes and effects of the present application in detail, the following embodiments are described in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0035] In this paper, the term "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing at various places in the specification does not necessarily refer to the same embodiment, and does not particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, each technical feature mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0036] Unless otherwise defined, the meaning of the technical terms used herein is the same as that generally understood by those skilled in the art to which the present application belongs; the use of related terms herein is only for the purpose of describing specific embodiments, and is not intended to limit the present application.

[0037] In the description of the present application, the phrase "and / or" is a description of the logical relationship between the objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this paper generally represents that the associated objects before and after are a "or" logical relationship.

[0038] In the present application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary and secondary or order relationship between the entities or operations.

[0039] Without more limitations, in the present application, the phrases "include", "contain", "have" or other similar expressions used in the sentence are intended to cover non-exclusive inclusion, and these expressions do not exclude the presence of other elements in the process, method or product including the described elements, so that the process, method or product including a series of elements can not only include those limited elements, but also include other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0040] Consistent with the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceed" are understood to exclude the number itself; expressions such as "above," "below," and "within" are understood to include the number itself. Furthermore, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this manner, such as "multiple groups," "multiple times," etc., unless otherwise specifically defined.

[0041] In the description of the embodiments of the present application, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating 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, it should not be understood as a limitation on the embodiments of the present application.

[0042] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms "installed", "connected", "connected", "fixed", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated 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 elements or the interaction relationship between two elements. For those skilled in the art of the present application, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0043] In light of the aforementioned shortcomings of existing line-scanning light sources, the applicant, drawing on years of practical experience and expertise in the design and manufacture of such products, combined with applied theory, has actively engaged in research and innovation, hoping to develop a technology that addresses these shortcomings and makes line-scanning light sources more practical. Through continuous research and design, repeated prototype production, and refinement, the applicant has finally developed the present utility model, which possesses proven practical value.

[0044] Please refer to Figures 1 to 3 The embodiment of the present utility model provides a line scanning light source, including an arc-shaped housing 1, a light emitting unit 2 and a control module.

[0045] The arc-shaped shell 1 is provided with two arc-shaped grooves 11; the two arc-shaped grooves 11 are parallel to each other, and the two arc-shaped grooves 11 are symmetrical about the center plane 101 of the arc-shaped shell 1; a light-emitting unit 2 is installed in each of the two arc-shaped grooves 11, and the two light-emitting units 2 are symmetrical about the center plane 101; the light-emitting unit 2 includes an arc-shaped concentrator 21 installed at the notch of the arc-shaped groove 11 and an arc-shaped lamp board 22 installed in the arc-shaped groove 11; the arc-shaped lamp board 22 emits light obliquely toward the arc-shaped concentrator 21, and the light forms an arc-shaped light spot on the arc surface of the workpiece after passing through the arc-shaped concentrator 21, and the two arc-shaped light spots can at least partially overlap; a control module, the control module is electrically connected to each light-emitting unit 2 respectively, and the light-emitting unit 2 can be started and stopped individually.

[0046] In this embodiment, the control module can independently control one light emitting unit 2 to tilt its light output to the left, so that an arc-shaped light spot at least partially covers another arc-shaped light source, thereby increasing the illumination intensity on the arc surface of the workpiece; the control module can also independently control another light emitting unit 2 to tilt its light output to the right, so that an arc-shaped light spot at least partially covers another arc-shaped light source, thereby increasing the illumination intensity on the arc surface of the workpiece.

[0047] Existing line-scan light sources with a straight-down light output pattern, if tilted, produce normal illumination at the ends of the arc-shaped light spot, but noticeably differ at the tail end, resulting in an irregular illumination effect and affecting actual detection accuracy. In contrast, the arc-shaped light spot in this embodiment is formed by tilting the light output, allowing it to easily overlap with other arc-shaped light spots, thus meeting various illumination requirements. Generally, the height of the arc-shaped housing 1 can be appropriately adjusted to allow more arc-shaped light spots to overlap with each other.

[0048] Optionally, the arc-shaped shell 1 is further formed with a water cooling channel 12, and a plurality of heat sinks 121 extend from the bottom wall of the water cooling channel 12 near the arc-shaped lamp panel 22 and extend into the water cooling channel 12, with two adjacent heat sinks 121 arranged at intervals; the heat sinks 121 extend along the direction of the water cooling channel 12.

[0049] Specifically, the water cooling channel 12 is used to cool the arc-shaped housing 1 , so that the temperature of the light emitting unit 2 can be reduced more quickly, thereby preventing the arc-shaped lamp board 22 from overheating.

[0050] Optionally, when both light emitting units 2 emit light, the arc-shaped light spots formed on the arc surface of the workpiece by the two light emitting units 2 at least partially overlap. Specifically, the two light emitting units 2 in this embodiment can illuminate the same area to be inspected, thereby forming a higher light intensity.

[0051] Optionally, the bottom wall of the arc-shaped groove 11 is an inclined arc surface; the arc-shaped lamp board 22 includes a curved circuit board and lamp beads mounted on the curved circuit board, and the curved circuit board is in contact with the bottom wall of the groove. The curved circuit board is in contact with the bottom wall of the groove, thereby facilitating heat transfer to the cooling water in the water-cooling channel 12, thereby improving the cooling effect.

[0052] Optionally, a plurality of arc-shaped heat dissipation protrusions 102 are protruded from the arc-shaped outer wall surface of the arc-shaped housing 1 to further improve the heat dissipation effect.

[0053] Optionally, a closed end plate 3 is mounted at the end of the arc-shaped housing 1, and a water inlet and outlet joint 4 is mounted on the closed end plate 3. Cooling water enters the water-cooling channel 12 through one water inlet and outlet joint 4 and flows out through the other water inlet and outlet joint 4. Generally, an inlet and outlet joint 4 is mounted at each end of the arc-shaped housing 1, that is, each closed end plate 3 is provided with an inlet and outlet joint 4. Of course, a single closed end plate 3 may also be provided with both an inlet and outlet joint 4 for water inlet and water outlet.

[0054] Optionally, the arc-shaped housing 1 is an integrated structure, thereby making the structure more stable.

[0055] Optionally, the arc-shaped housing 1 has a partition 103 for separating the two arc-shaped grooves 11 , and first arc-shaped positioning grooves for positioning the arc-shaped concentrator 21 are provided on two opposite sides of the partition 103 .

[0056] Alternatively, as Figure 3 As shown, the arc-shaped housing 1 further includes a main body 104 and an outer clamping plate 105 disposed opposite the partition 103. The outer clamping plate 105 is mounted on the main body 104 and is provided with a second arc-shaped positioning groove opposite the first arc-shaped positioning groove. The arc-shaped concentrator 21 is clamped by the first and second arc-shaped positioning grooves. In this embodiment, the arc-shaped concentrator 21 can be first installed in the first arc-shaped positioning groove, and then the outer clamping plate 105 is mounted on the main body 104 to clamp the arc-shaped concentrator 21. The arc-shaped concentrator 21 has a circular cross-section.

[0057] Optionally, the outer plate portion 105 is rotatably connected to the main body portion 104; the outer plate portion 105 can be rotated to an angle perpendicular to the partition 103. This can effectively prevent the outer plate portion 105 from being lost or installed upside down, and facilitates the installation of the arc-shaped concentrator 21.

[0058] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concepts of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A line scanning light source, characterized in that: include: The arc-shaped housing (1) is provided with two arc-shaped grooves (11), and the two arc-shaped grooves (11) are symmetrical about the central plane (101) of the arc-shaped housing (1); A light emitting unit (2), wherein the light emitting unit (2) is installed in each of the two arc-shaped grooves (11), and the two light emitting units (2) are symmetrical about the central plane (101); the light emitting unit (2) comprises an arc-shaped concentrator (21) installed at the notch of the arc-shaped groove (11) and an arc-shaped lamp board (22) installed in the arc-shaped groove (11); the arc-shaped lamp board (22) emits light obliquely toward the arc-shaped concentrator (21), and the light forms an arc-shaped light spot on the arc surface of the workpiece after passing through the arc-shaped concentrator (21), and the two arc-shaped light spots can at least partially overlap; A control module is provided, wherein the control module is electrically connected to each of the light emitting units (2), and the light emitting units (2) can be started and stopped individually.

2. The line scanning light source according to claim 1, characterized in that: The arc-shaped housing (1) is further formed with a water cooling channel (12), and a plurality of heat sinks (121) extend from the bottom wall of the water cooling channel (12) close to the arc-shaped lamp panel (22) and extend into the water cooling channel (12), with two adjacent heat sinks (121) being arranged at intervals; The heat sink (121) extends along the direction of the water cooling channel (12).

3. The line scanning light source according to claim 1, characterized in that: When both of the light emitting units (2) emit light, the arc-shaped light spots formed by the two light emitting units (2) on the arc surface of the workpiece at least partially overlap.

4. The line scanning light source according to claim 1, wherein: The bottom wall of the arc-shaped groove (11) is an inclined arc surface; The arc-shaped lamp board (22) comprises an arc-shaped circuit board and lamp beads mounted on the arc-shaped circuit board, and the arc-shaped circuit board is fitted to the bottom wall of the groove.

5. The line scanning light source according to claim 1, characterized in that: A plurality of arc-shaped heat dissipation protrusions (102) are protrudingly provided on the arc-shaped outer wall surface of the arc-shaped housing (1).

6. The line scanning light source according to claim 1, characterized in that: A closed end plate (3) is installed at the end of the arc-shaped shell (1), and a water inlet and outlet joint (4) is installed on the closed end plate (3).

7. The line scanning light source according to claim 2, characterized in that: The arc-shaped housing (1) is an integrated structure.

8. The line scanning light source according to claim 1, wherein: The arc-shaped housing (1) has a partition (103) for separating the two arc-shaped grooves (11), and first arc-shaped positioning grooves for positioning the arc-shaped concentrator (21) are provided on opposite sides of the partition (103).

9. The line scanning light source according to claim 8, characterized in that: The arc-shaped housing (1) further includes a main body portion (104) and an outer clamping plate portion (105) disposed opposite to the partition plate (103); The outer clamping plate portion (105) is mounted on the main body portion (104), and the outer clamping plate portion (105) is provided with a second arc-shaped positioning groove opposite to the first arc-shaped positioning groove, and the arc-shaped concentrator (21) is clamped by the first arc-shaped positioning groove and the second arc-shaped positioning groove.

10. The line scanning light source according to claim 9, characterized in that: The outer clamping plate portion (105) is rotatably connected to the main body portion (104); The outer clamping plate portion (105) can be rotated to an angle perpendicular to the partition plate (103).

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