Composite light source

Abstract

The utility model relates to the technical field of machine vision equipment, and discloses a composite light source which comprises a lamp holder assembly. The first detection light source is arranged on one side of the lamp holder assembly, and the first detection light source is used for detecting and photographing surface pollutants; and the second detection light source is arranged on the other side of the lamp holder assembly, and the second detection light source is used for carrying out outer surface crack detection photographing. According to the composite light source, the first detection light source and the second detection light source are fixedly connected to the lamp holder assembly, the first detection light source can be applied to surface pollutant detection of a battery piece, and the second detection light source can be applied to outer surface crack detection of the battery piece; the light source can meet the requirements of surface pollutant detection and outer surface crack detection, and the problem that the light source is poor in shooting irradiation effect on battery piece surface pollutant detection is solved.

Description

Technical Field

[0001] The present application relates to the technical field of machine vision equipment, and specifically to a composite light source. Background Art

[0002] After the battery cell is produced, it is necessary to test the battery cell to ensure that the quality of the battery cell meets the production standards. The battery cell testing includes the detection of contaminants on the surface of the battery cell and the detection of cracks on the outer surface of the battery cell.

[0003] Traditional battery cell inspection requires manual visual inspection. Currently, battery cell inspection through machine recognition has become a hot topic of research. That is, by taking pictures of battery cells with industrial cameras and then using artificial intelligence algorithms to recognize the pictures, rapid inspection of the battery cell surface can be achieved. In order to take pictures that can be correctly recognized by artificial intelligence algorithms, a light source needs to be used to illuminate the battery cell to be inspected when taking pictures of the battery cell.

[0004] However, the light source currently used for taking photos has a good auxiliary effect on the detection of cracks on the outer surface of the battery cell, but the effect on the detection of contaminants on the surface of the battery cell is poor and it is difficult to meet the use requirements. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present application provides a composite light source, which solves the problem of poor illumination effect of the light source for detecting contaminants on the surface of a cell.

[0006] To achieve the above objectives, the present application provides the following technical solutions: a composite light source, comprising:

[0007] Light stand assembly;

[0008] A first detection light source, which is disposed on one side of the lamp holder assembly and is used for detecting and photographing surface contaminants;

[0009] A second detection light source is disposed on the other side of the lamp holder assembly, and is used for taking photos of outer surface crack detection.

[0010] Preferably, the lamp holder assembly includes a first mounting plate, a second mounting plate and a heat dissipation bracket, the first mounting plate is arranged opposite to the second mounting plate, the heat dissipation bracket is connected to the first mounting plate and the second mounting plate, the first detection light source is arranged on the heat dissipation bracket, and the second detection light source is connected to the first mounting plate and the second mounting plate.

[0011] Preferably, the first detection light source includes:

[0012] A first lamp board, the first lamp board is fixedly connected to the heat dissipation bracket, and a plurality of lamp beads are arranged on the first lamp board;

[0013] A reflector plate is fixedly connected to the heat dissipation bracket, and a reflective surface is arranged on a side of the reflector plate close to the first lamp board.

[0014] Preferably, the reflecting surface is a concave curved surface.

[0015] Preferably, a first mounting groove is provided on the first mounting plate, a second mounting groove is provided on the second mounting plate, a receiving groove is provided on the heat dissipation bracket, the second detection light source is received in the receiving groove, one end of the second detection light source extends into the first mounting groove and is fixedly connected to the first mounting plate, and the other end extends into the second mounting groove and is fixedly connected to the second mounting plate.

[0016] Preferably, the second detection light source includes:

[0017] A lamp housing, wherein a storage groove is concavely provided on the lamp housing;

[0018] A second light board, the second light board is fixedly connected to the bottom of the storage slot, and a plurality of lamp beads are arranged on the second light board;

[0019] A light concentrator, which is arranged on a side of the second lamp panel where the lamp beads are arranged, and is fixedly connected to a groove wall of the storage groove;

[0020] A linear diffusion membrane is arranged at the opening of the storage groove, and the linear diffusion membrane is fixedly connected to the groove wall of the storage groove.

[0021] Preferably, the heat dissipation bracket comprises a supporting plate, a connecting plate and a heat dissipation plate which are connected in sequence, the supporting plate and the connecting plate are both provided with heat dissipation fins, and a plurality of fans are fixedly connected to the heat dissipation plate.

[0022] Preferably, it also includes a light shielding sheet, which is fixedly connected to the supporting plate.

[0023] The present application provides a composite light source, which has the following beneficial effects:

[0024] The composite light source is configured such that a first detection light source and a second detection light source are fixedly connected on a lamp holder assembly. The first detection light source can be used for detecting surface contaminants of a battery cell, and the second detection light source can be used for detecting cracks on the outer surface of the battery cell. This enables the light source to meet the requirements of both surface contaminant detection and outer surface crack detection, thereby solving the problem of poor shooting and illumination effects of the light source for detecting contaminants on the surface of a battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0027] Figure 2 This is a left view after hiding the second mounting plate in the embodiment of the present application.

[0028] Figure 3 It is a schematic diagram of the assembly relationship in the embodiment of the present application.

[0029] Figure 4 Schematic diagram of the assembly relationship of the second detection light source in the embodiment of the present application.

[0030] In the figure: 1. lamp holder assembly; 11. first mounting plate; 111. first mounting slot; 12. second mounting plate; 13. heat dissipation bracket; 131. supporting plate; 132. connecting plate; 133. heat dissipation plate; 134. fan; 2. first detection light source; 21. first lamp board; 22. reflecting plate; 221. reflecting surface; 23. first pressure strip; 24. second pressure strip; 3. second detection light source; 31. lamp housing; 311. first panel; 312. second panel; 313. first side panel; 314. second side panel; 315. bottom plate; 32. second lamp board; 33. focusing element; 34. linear diffusion film; 4. light shielding film. DETAILED DESCRIPTION

[0031] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] The following is combined with Figure 1 -Attached Figure 4 The technical solution of this application is further illustrated through specific implementation methods.

[0034] See also Figure 1 The present application provides a technical solution: a composite light source, including a lamp holder assembly 1, a first detection light source 2 and a second detection light source 3.

[0035] See also Figure 2 and Figure 3 The lamp holder assembly 1 includes a first mounting plate 11, a second mounting plate 12 and a heat dissipation bracket 13. The first mounting plate 11 is arranged opposite to the second mounting plate 12. The heat dissipation bracket 13 is connected to the first mounting plate 11 and the second mounting plate 12. The first detection light source 2 is arranged on the heat dissipation bracket 13, and the second detection light source 3 is connected to the first mounting plate 11 and the second mounting plate 12. The heat dissipation bracket 13 is arranged in a U shape. The heat dissipation bracket 13 includes a supporting plate 131, a connecting plate 132 and a heat dissipation plate 133 connected in sequence. The supporting plate 131 and the connecting plate 132 are respectively integrally formed with a plurality of heat dissipation fins to enhance the passive heat dissipation capacity of the heat dissipation bracket 13. A plurality of fans 134 are fixedly connected to the heat dissipation plate 133. In this embodiment, the number of fans 134 is set to four. Four mounting holes are opened on the heat dissipation plate 133. The mounting holes are arranged one by one with the fans 134. The fans 134 are accommodated in the corresponding mounting holes and are fixedly connected to the heat dissipation plate 133 by bolts. The provision of the fan 134 can enhance the active heat dissipation capability of the heat dissipation bracket 13 , so as to dissipate the heat generated by the first detection light source 2 and the second detection light source 3 .

[0036] See also Figure 2 and Figure 3 The first detection light source 2 is used for taking photos of surface pollutant detection. The first detection light source 2 is arranged on the side of the supporting plate 131 close to the heat sink 133. Specifically, the first detection light source 2 includes a first lamp board 21, a reflector 22, a first pressure strip 23 and a second pressure strip 24. The first lamp board 21 is fixedly connected to the supporting plate 131. A plurality of lamp beads are arranged on the first lamp board 21. The first pressure strip 23 is fixedly connected to the supporting plate 131 by bolts. The second pressure strip 24 is fixedly connected to the heat sink 133 by bolts. The reflector 22 is arranged on the side of the first lamp board 21 close to the connecting plate 132. One end of the reflector 22 is fixedly connected to the supporting plate 131 by the first pressure strip 23, and the other end is bolted to the second pressure strip 24. A reflective surface 221 is arranged on the side of the reflector 22 close to the first lamp board 21. In this embodiment, the reflective surface 221 is a concave curved surface, and the reflective surface 221 is coated with white reflective paint.

[0037] See also Figure 3 and Figure 4The second detection light source 3 is used for taking photos of crack detection on the outer surface. The second detection light source 3 is arranged in a long strip shape. A first mounting groove 111 is opened on the first mounting plate 11, and a second mounting groove is opened on the second mounting plate 12. A receiving groove is opened on the side of the supporting plate 131 away from the first detection light source 2. The second detection light source 3 is received in the receiving groove. One end of the second detection light source 3 extends into the first mounting groove 111 and is fixedly connected to the first mounting plate 11 by bolts, and the other end extends into the second mounting groove and is fixedly connected to the second mounting plate 12 by bolts.

[0038] See also Figure 3 and Figure 4 The second detection light source 3 includes a lamp housing 31, a second lamp board 32, a focusing member 33 and a linear diffusion film 34. The lamp housing 31 includes a first panel 311, a second panel 312, a first side panel 313, a second side panel 314 and a bottom plate 315. The first panel 311 and the second panel 312 are arranged opposite to each other. The first side panel 313, the second side panel 314 and the bottom plate 315 are all located between the first panel 311 and the second panel 312. The first panel 311, the second panel 312, the first side panel 313, the second side panel 314 and the bottom plate 315 are jointly enclosed to form a storage groove. The second lamp board 32 is fixedly connected to the bottom of the storage groove. A plurality of lamp beads are arranged on the side of the second lamp board 32 away from the bottom of the storage groove. The light concentrator 33 is used to converge the light emitted by the lamp beads. The light concentrator 33 is arranged in a cylindrical shape. The light concentrator 33 is located on the side of the second lamp board 32 away from the bottom of the storage slot. The light concentrator 33 is fixedly connected to the side wall of the storage slot. The linear diffusion film 34 is used to improve the uniformity of the light converged by the light concentrator 33. The linear diffusion film 34 is arranged at the opening of the storage slot and is fixedly connected to the slot wall of the red grass.

[0039] See also Figure 1 In addition, one end of the supporting plate 131 away from the connecting plate 132 is connected with a light shielding plate 4 by means of bolts. The setting of the light shielding plate 4 can reduce the mutual interference between the first detection light source 2 and the second detection light source 3, thereby improving the shooting effect.

[0040] To summarize, by fixedly connecting the first detection light source 2 and the second detection light source 3 on the lamp holder assembly 1, the first detection light source 2 can be used for surface contaminant detection of battery cells, and the second detection light source 3 can be used for external surface crack detection of battery cells, so that the light source can meet both surface contaminant detection and external surface crack detection, thereby solving the problem of poor shooting illumination effect of the light source for surface contaminant detection of battery cells.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

[0043] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A composite light source, characterized in that: include: Light stand assembly (1); A first detection light source (2), the first detection light source (2) being arranged on one side of the lamp holder assembly (1), and the first detection light source (2) being used for detecting and photographing surface pollutants; A second detection light source (3), wherein the second detection light source (3) is arranged on the other side of the lamp holder assembly (1), and the second detection light source (3) is used for performing external surface crack detection and photographing.

2. A composite light source according to claim 1, characterized in that: The lamp holder assembly (1) comprises a first mounting plate (11), a second mounting plate (12) and a heat dissipation bracket (13); the first mounting plate (11) and the second mounting plate (12) are arranged opposite to each other; the heat dissipation bracket (13) is connected to the first mounting plate (11) and the second mounting plate (12); the first detection light source (2) is arranged on the heat dissipation bracket (13); and the second detection light source (3) is connected to the first mounting plate (11) and the second mounting plate (12).

3. A composite light source according to claim 2, characterized in that: The first detection light source (2) comprises: A first lamp board (21), the first lamp board (21) being fixedly connected to the heat dissipation bracket (13), and a plurality of lamp beads being arranged on the first lamp board (21); A reflective plate (22), the reflective plate (22) being fixedly connected to the heat dissipation bracket (13), and a reflective surface (221) being provided on a side of the reflective plate (22) close to the first light board (21).

4. A composite light source according to claim 3, characterized in that: The reflecting surface (221) is a concave curved surface.

5. The composite light source according to claim 2, characterized in that: The first mounting plate (11) is provided with a first mounting groove (111), the second mounting plate (12) is provided with a second mounting groove, the heat dissipation bracket (13) is provided with a receiving groove, the second detection light source (3) is received in the receiving groove, one end of the second detection light source (3) extends into the first mounting groove (111) and is fixedly connected to the first mounting plate (11), and the other end extends into the second mounting groove and is fixedly connected to the second mounting plate (12).

6. The composite light source according to claim 2, characterized in that: The second detection light source (3) comprises: A lamp housing (31), wherein a storage groove is concavely provided on the lamp housing (31); A second light board (32), the second light board (32) being fixedly connected to the bottom of the storage slot, and a plurality of lamp beads being arranged on the second light board (32); A light collecting member (33), the light collecting member (33) being arranged on a side of the second light board (32) on which the lamp beads are arranged, the light collecting member (33) being fixedly connected to a groove wall of the storage groove; A linear diffusion membrane (34), wherein the linear diffusion membrane (34) is arranged at the opening of the storage groove, and the linear diffusion membrane (34) is fixedly connected to the groove wall of the storage groove.

7. The composite light source according to claim 2, characterized in that: The heat dissipation bracket (13) comprises a supporting plate (131), a connecting plate (132) and a heat dissipation plate (133) which are connected in sequence; the supporting plate (131) and the connecting plate (132) are both provided with heat dissipation fins; and a plurality of fans (134) are fixedly connected to the heat dissipation plate (133).

8. The composite light source according to claim 7, characterized in that: It also comprises a light shielding sheet (4), wherein the light shielding sheet (4) is fixedly connected to the supporting plate (131).

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