COB (Chip On Board) lamp panel lightening test board

Abstract

The utility model relates to a COB lamp panel lightening test bench. The COB lamp panel lightening test bench comprises a mounting rack, a limiting plate, a pin mechanism and a driving mechanism. And the driving mechanism is arranged on the mounting frame and is connected with the pin inserting mechanism. The COB lamp panel is detachably connected with the limiting plate, positioning of the COB lamp panel can be achieved by positioning the limiting plate, the COB lamp panel is protected, and meanwhile the positioning precision is improved. A sliding groove is horizontally formed in the mounting frame, the limiting plate loaded with the COB lamp panel is inserted into the sliding groove, the limiting plate is located over the pin inserting mechanism, and the limiting plate is preliminarily positioned through the sliding groove. A plurality of positioning needles and a plurality of inserting needles are vertically arranged on the needle inserting mechanism, a plurality of first positioning holes are formed in the limiting plate, the positioning needles can be connected with the first positioning holes in a one-to-one correspondence mode, the limiting plate is positioned through the positioning needles, secondary positioning is achieved, and the positioning precision is further improved; the pin mechanism moves upwards, and the multiple pins abut against the electric connection points on the COB lamp panel in a one-to-one correspondence mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to LED display screen module test technical field especially relates to a COB lamp board lighting test board. BACKGROUND

[0002] COB technology is a new LED packaging technology, and it is different from traditional SMD surface mount packaging, it is to integrate the light emitting chip in the PCB, not a grain of soldering on the PCB. COB effectively improves the light color of LED display screen, reduces the risk, reduces the cost. After the COB lamp board is made, it needs to be tested, the qualified rate of COB lamp board and color correction are tested. When testing the qualified rate of COB lamp board and color correction, the COB lamp board needs to be fixed and then inserted needle power supply, and the COB lamp board is controlled by the controller according to the set program and emits light in turn. In the operation process of fixing the COB lamp board and the abutment of the needle and the COB lamp board, the needle and the electric connection point on the COB lamp board cannot be accurately connected due to the inaccuracy of the fixed position and the instability of the fixed position, and then the test result and test efficiency of the COB lamp board are affected. SUMMARY

[0003] (I) technical problem to be solved

[0004] In view of the above-mentioned defects and deficiencies of the prior art, the utility model provides a COB lamp board lighting test board.

[0005] (II) technical scheme

[0006] In order to achieve the above-mentioned purpose, the COB lamp board lighting test board of the utility model includes mounting bracket, limit plate, needle mechanism and drive mechanism;

[0007] The drive mechanism is arranged on the mounting bracket, and the drive mechanism is connected with the needle mechanism to drive the needle mechanism to move in the vertical direction;

[0008] The COB lamp board is detachably connected with the limit plate;

[0009] The mounting bracket is horizontally provided with a sliding groove, the limit plate is arranged in the sliding groove, and the limit plate is located directly above the needle mechanism;

[0010] A plurality of positioning needles and a plurality of needles are vertically arranged on the needle mechanism, a plurality of first positioning holes are formed on the limit plate, a plurality of positioning needles can be detachably connected with a plurality of first positioning holes one by one, and a plurality of needles can abut with the electric connection point on the COB lamp board one by one.

[0011] Optionally, the mounting bracket includes a bottom plate, a first frame and a second frame;

[0012] The first frame and the second frame are both detachably connected to the bottom plate, and the first frame and the second frame are arranged opposite to each other and parallel to each other;

[0013] The slide groove is provided on both the first frame and the second frame, and a limiting portion is provided at the first end of the slide groove. The limiting plate can slide into the second end of the slide groove and abut against the limiting portion. At this time, the limiting plate is located directly above the pin insertion mechanism.

[0014] Optionally, the mounting frame further includes a first connecting beam and a second connecting beam;

[0015] The first ends of the first frame and the second frame are connected to the first connecting beam, and the second ends of the first frame and the second frame are connected to the second connecting beam, and the first connecting beam and the second connecting beam are both located above the chute;

[0016] The limiting portion is provided at the bottom of the second connecting beam, and the limiting portion extends to the bottom of the sliding groove, and the first end of the limiting plate abuts against the limiting portion.

[0017] Optionally, the mounting bracket further comprises a clamping pin plug;

[0018] A clamping groove is horizontally opened on the first frame and the second frame. The clamping groove is communicated with the sliding groove. The clamping pin is sleeved in the clamping groove. The clamping pin is in contact with the second end of the limiting plate.

[0019] Optionally, a limiting groove is provided in the middle of the limiting plate, and the COB lamp board is arranged in the limiting groove; the first positioning holes are located at the four corners of the limiting plate.

[0020] Optionally, a pair of through holes communicating with the slide grooves are vertically formed on the first frame and the second frame, and the through holes can accommodate the positioning pins.

[0021] Optionally, the pin insertion mechanism includes a circuit board and a support plate;

[0022] The first surface of the circuit board is provided with a driving circuit and a control circuit, the plurality of pins are vertically provided on the second surface of the circuit board, and the first surface of the circuit board abuts against the support plate;

[0023] The positioning pins are vertically arranged on the support plate, and a plurality of second positioning holes are opened on the circuit board, and the plurality of positioning pins are respectively connected to the plurality of second positioning holes in a one-to-one correspondence;

[0024] The driving mechanism is connected to the supporting plate.

[0025] Optionally, a containing groove is formed on the support plate, and the driving circuit and the control circuit are located in the containing groove.

[0026] Optionally, the driving mechanism comprises a guide assembly and a jacking cylinder arranged at the bottom of the mounting frame, and the piston rods of the guide assembly and the jacking cylinder are connected with the pin mechanism.

[0027] Optionally, the driving mechanism comprises a pair of guide assemblies and a pair of jacking cylinders.

[0028] (III) Beneficial effects

[0029] The COB lamp plate and the limiting plate are detachably connected, so that the limiting plate and the COB lamp plate form a whole in advance, positioning of the limiting plate can realize positioning of the COB lamp plate, the COB lamp plate is protected, and the positioning precision is improved. The mounting frame is horizontally provided with a sliding groove, the limiting plate carrying the COB lamp plate is inserted into the sliding groove before testing, at this time, the limiting plate is located directly above the pin mechanism, and the limiting plate is preliminarily positioned through the sliding groove. When the pin mechanism is driven by the driving mechanism to move upwards, the plurality of positioning pins can be connected with the plurality of first positioning holes one by one, the limiting plate is positioned through the plurality of positioning pins, and then secondary positioning of the COB lamp plate is realized, and the positioning precision is further improved; after the pin mechanism moves to a set height, the plurality of pins can abut against the electric connection points on the COB lamp plate one by one, so that the electric connection between the pin mechanism and the COB lamp plate is realized, and the pin mechanism is started to test the COB lamp plate. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a three-dimensional schematic view of the COB lamp plate lighting test table of the utility model;

[0031] Figure 2 It is an exploded schematic view of the COB lamp plate lighting test table of the utility model;

[0032] Figure 3 It is a side view schematic view of the COB lamp plate lighting test table of the utility model;

[0033] Figure 4 It is a partial cross-sectional schematic view of the COB lamp plate lighting test table of the utility model.

[0034]

Explanation of reference signs

[0035] 100: COB lamp plate;

[0036] 1: mounting frame; 10: bottom plate; 11: first frame; 12: second frame; 13: first connecting beam; 14: second connecting beam; 15: limiting part; 16: clamping pin plug; 17: clamping groove; 18: through hole;

[0037] 2: limiting plate; 21: first positioning hole; 22: limiting groove;

[0038] 3: pin insertion mechanism; 31: positioning pin; 32: pin; 33: circuit board; 34: support plate; 35: second positioning hole; 36: accommodating groove;

[0039] 4: driving mechanism; 41: guide assembly; 42: jacking cylinder;

[0040] 5: sliding groove. DETAILED DESCRIPTION

[0041] In order to better explain the utility model, so as to facilitate understanding, the following specific embodiments, combined with the drawings, the utility model is described in detail. In which, the text mentioned "upper", "lower"...... and other orientation terms with the direction of the reference. Figure 1 .

[0042] Although the drawings show the exemplary embodiments of the utility model, it should be understood that the utility model can be realized in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a clearer and more thorough understanding of the utility model, and to enable the scope of the utility model to be fully conveyed to those skilled in the art.

[0043] As shown in Figure 1 The utility model provides a kind of COB lamp panel lighting test platform, for being connected with COB lamp panel 100 after its power supply, and according to set program, COB lamp panel 100 is tested to light up.Wherein, COB lamp panel lighting test platform includes mounting bracket 1, limiting plate 2, pin insertion mechanism 3 and driving mechanism 4.

[0044] As shown in Figures 2 to 4As shown, the driving mechanism 4 is arranged on the mounting frame 1, and the driving mechanism 4 is connected with the pin mechanism 3 to drive the pin mechanism 3 to move in the vertical direction. The COB lamp plate 100 is detachably connected with the limiting plate 2, so that the limiting plate 2 and the COB lamp plate 100 form a whole in advance. The limiting plate 2 is a standard part made according to the size of the COB lamp plate 100 to be tested, so that the positioning of the limiting plate 2 can realize the positioning of the COB lamp plate 100, which protects the COB lamp plate 100 and improves the positioning accuracy. The mounting frame 1 is horizontally provided with a sliding groove 5, and the limiting plate 2 carrying the COB lamp plate 100 is inserted into the sliding groove 5 before testing. At this time, the limiting plate 2 is located directly above the pin mechanism 3, and the limiting plate 2 is preliminarily positioned by the sliding groove 5. The pin mechanism 3 is vertically provided with a plurality of positioning pins 31 and a plurality of pins 32, and the limiting plate 2 is provided with a plurality of first positioning holes 21. When the driving mechanism 4 drives the pin mechanism 3 to move upward, the plurality of positioning pins 31 can be connected with the plurality of first positioning holes 21 one by one, and the limiting plate 2 is positioned by the plurality of positioning pins 31, thereby realizing the secondary positioning of the COB lamp plate 100 and further improving the positioning accuracy. After the pin mechanism 3 moves to the set height, the plurality of pins 32 can abut with the electrical connection points on the COB lamp plate 100 one by one, so as to realize the electrical connection between the pin mechanism 3 and the COB lamp plate 100, and the pin mechanism 3 is started to test the COB lamp plate 100.

[0045] As shown in Figure 2 The mounting frame 1 includes a bottom plate 10, a first frame 11 and a second frame 12. The first frame 11 and the second frame 12 are both door-shaped frames including one horizontal beam and two vertical columns. The vertical columns of the first frame 11 and the second frame 12 are detachably connected with the bottom plate 10, and the horizontal beams of the first frame 11 and the second frame 12 are oppositely arranged and parallel to each other. The horizontal beams of the first frame 11 and the second frame 12 are both horizontally provided with the sliding groove 5, and the first ends of the sliding grooves 5 on the first frame 11 and the second frame 12 are both provided with limiting portions 15. The limiting plate 2 is slid from the second end of the sliding groove 5 and abuts with the limiting portions 15. At this time, the limiting plate 2 is located directly above the pin mechanism 3, and the limiting plate 2 is preliminarily positioned by the limiting portions 15.

[0046] Further, referring to Figure 2The mounting rack 1 further comprises a first connecting beam 13 and a second connecting beam 14, the first ends of the cross beams of the first frame 11 and the second frame 12 are connected with the first connecting beam 13, and the second ends of the cross beams of the first frame 11 and the second frame 12 are connected with the second connecting beam 14, thereby improving the stability of the mounting rack 1, avoiding deformation of the first frame 11 and the second frame 12 due to extrusion of the limiting plate 2, and improving the cooperation precision between the limiting plate 2 and the mounting rack 1. The first connecting beam 13 and the second connecting beam 14 are located above the sliding groove 5 to avoid interfering with the movement of the limiting plate 2 in the sliding groove 5. The limiting portion 15 is arranged at the bottom of the second connecting beam 14, and the limiting portion 15 is preferably a limiting protrusion. The limiting protrusion extends below the sliding groove 5, and the first end of the limiting plate 2 abuts against the limiting protrusion, for blocking the limiting plate 2 from continuing to move in the sliding groove 5.

[0047] As shown in Figure 2 and Figure 3 , the mounting rack 1 further comprises a clamping pin plug 16. The cross beams of the first frame 11 and the second frame 12 are horizontally provided with clamping grooves 17 which are in communication with the sliding groove 5 on the first frame 11, and the clamping pin plug 16 is inserted into the clamping groove 17. At this time, the clamping pin plug 16 abuts against the second end of the limiting plate 2, and the limiting plate 2 is locked by the clamping pin plug 16, thereby avoiding displacement of the limiting plate 2 during testing, causing unstable contact between the pin 32 and the COB lamp plate 100, and affecting the test results. When the COB lamp plate 100 needs to be replaced, the clamping pin plug 16 can be pulled out to slide the limiting plate 2 carrying the COB lamp plate 100 out of the mounting rack 1, thereby improving the convenience of operation.

[0048] As shown in Figure 2 , the limiting plate 2 is provided with a limiting groove 22 in the middle, and the COB lamp plate 100 is installed in the limiting groove 22; the first positioning holes 21 are located at the four corners of the limiting plate 2, and the first positioning holes 21 at the four corners are connected with the four positioning pins 31 one by one, thereby ensuring the positioning accuracy. A pair of through holes 18 in communication with the sliding groove 5 are vertically provided on the cross beams of the first frame 11 and the second frame 12, and the through holes 18 are used to accommodate the positioning pins 31.

[0049] Preferably, the pin mechanism 3 includes a circuit board 33 and a support plate 34. The first surface of the circuit board 33 is provided with a conventional drive circuit and control circuit. The drive circuit and control circuit are connected to an external power supply and a controller via wires to drive and control the COB light board 100 to light up according to the set program. A plurality of pins 32 are vertically arranged on the second surface of the circuit board 33, and the first surface of the circuit board 33 abuts the support plate 34. In a specific embodiment, the circuit board 33 and the support plate 34 are connected by magnetic attraction, which facilitates the disassembly and replacement of different drive circuits and control circuits according to different COB light boards 100. The positioning pins 31 are vertically arranged on the support plate 34, and the circuit board 33 is provided with second positioning holes 35 that match the position and number of the positioning pins 31. The plurality of positioning pins 31 are respectively connected one-to-one with the plurality of second positioning holes 35. The driving mechanism 4 is connected to the support plate 34, and drives the circuit board 33 to move through the support plate 34.

[0050] See also Figure 2 and Figure 4 A receiving groove 36 is provided on the support plate 34. The drive circuit and the control circuit are both located in the receiving groove 36. The receiving groove 36 is used to avoid air space for electronic components on the drive circuit and the control circuit, ensuring that the circuit board 33 is fully fitted with the support plate 34, thereby improving the positioning accuracy of the pin 32.

[0051] like Figure 2 As shown, the drive mechanism 4 includes a guide assembly 41 and a lifting cylinder 42 disposed at the bottom of the mounting frame 1. The piston rods of the guide assembly 41 and the lifting cylinder 42 are both connected to the support plate 34 of the pin insertion mechanism 3. In a preferred embodiment, the drive mechanism 4 includes a pair of guide assemblies 41 and a pair of lifting cylinders 42 to improve the stability of the movement of the support plate 34.

[0052] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0053] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0054] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature, which can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "under" and "under" the second feature, which can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.

[0055] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present application without contradiction.

[0056] Although the embodiments of the present application have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the present application. Those skilled in the art can modify, modify, replace and modify the above-mentioned embodiments within the scope of the present application.

Claims

1. A COB light board lighting test bench, characterized in that: The COB lamp panel lighting test bench comprises a mounting frame (1), a limiting plate (2), a pin insertion mechanism (3) and a driving mechanism (4); The driving mechanism (4) is arranged on the mounting frame (1), and the driving mechanism (4) is connected to the pin insertion mechanism (3) to drive the pin insertion mechanism (3) to move in a vertical direction; The COB lamp board (100) is detachably connected to the limiting plate (2); A slide groove (5) is horizontally provided on the mounting frame (1), the limit plate (2) is provided in the slide groove (5), and the limit plate (2) is located directly above the pin insertion mechanism (3); The pin mechanism (3) is vertically provided with a plurality of positioning pins (31) and a plurality of insertion pins (32); the limiting plate (2) is provided with a plurality of first positioning holes (21); the plurality of positioning pins (31) can be detachably connected to the plurality of first positioning holes (21) in a one-to-one correspondence; the plurality of insertion pins (32) can be respectively abutted against the electrical connection points on the COB lamp board (100) in a one-to-one correspondence.

2. The COB light board lighting test bench according to claim 1, characterized in that: The mounting frame (1) comprises a base plate (10), a first frame (11) and a second frame (12); The first frame (11) and the second frame (12) are both detachably connected to the base plate (10), and the first frame (11) and the second frame (12) are arranged opposite to each other and parallel to each other; The first frame (11) and the second frame (12) are both provided with the slide groove (5), and a limiting portion (15) is provided at the first end of the slide groove (5). The limiting plate (2) can slide into the second end of the slide groove (5) and abut against the limiting portion (15). At this time, the limiting plate (2) is located directly above the pin insertion mechanism (3).

3. The COB lamp panel lighting test bench according to claim 2, characterized in that: The mounting frame (1) further comprises a first connecting beam (13) and a second connecting beam (14); The first ends of the first frame (11) and the second frame (12) are both connected to the first connecting beam (13), and the second ends of the first frame (11) and the second frame (12) are both connected to the second connecting beam (14), and the first connecting beam (13) and the second connecting beam (14) are both located above the chute (5); The limiting portion (15) is arranged at the bottom of the second connecting beam (14), the limiting portion (15) extends to the bottom of the sliding groove (5), and the first end of the limiting plate (2) abuts against the limiting portion (15).

4. The COB lamp panel lighting test bench according to claim 3, characterized in that: The mounting frame (1) further comprises a clamping pin plug (16); A clamping groove (17) is horizontally provided on the first frame (11) and the second frame (12), the clamping groove (17) is communicated with the slide groove (5), the clamping pin plug (16) is sleeved in the clamping groove (17), and the clamping pin plug (16) abuts against the second end of the limit plate (2).

5. The COB lamp board lighting test bench according to claim 2, characterized in that: A limiting groove (22) is provided in the middle of the limiting plate (2), and the COB lamp board (100) is arranged in the limiting groove (22); the first positioning holes (21) are located at the four corners of the limiting plate (2).

6. The COB lamp panel lighting test bench according to claim 4, characterized in that: A pair of through holes (18) communicating with the slide groove (5) are vertically provided on the first frame (11) and the second frame (12), and the through holes (18) can accommodate the positioning pins (31).

7. The COB lamp board lighting test bench according to claim 1, characterized in that: The pin insertion mechanism (3) comprises a circuit board (33) and a support plate (34); The first surface of the circuit board (33) is provided with a driving circuit and a control circuit, the plurality of pins (32) are vertically provided on the second surface of the circuit board (33), and the first surface of the circuit board (33) is in contact with the support plate (34); The positioning pins (31) are vertically arranged on the support plate (34), a plurality of second positioning holes (35) are opened on the circuit board (33), and the plurality of positioning pins (31) are respectively connected to the plurality of second positioning holes (35) in a one-to-one correspondence; The driving mechanism (4) is connected to the supporting plate (34).

8. The COB lamp panel lighting test bench according to claim 7, characterized in that: The support plate (34) is provided with a receiving groove (36), and the driving circuit and the control circuit are both located in the receiving groove (36).

9. The COB lamp board lighting test bench according to claim 1, characterized in that: The driving mechanism (4) comprises a guide assembly (41) and a lifting cylinder (42) arranged at the bottom of the mounting frame (1); the piston rods of the guide assembly (41) and the lifting cylinder (42) are both connected to the pin insertion mechanism (3).

10. The COB lamp board lighting test bench according to claim 9, characterized in that: The driving mechanism (4) comprises a pair of guide assemblies (41) and a pair of lifting cylinders (42).

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