LED automatic detector

Abstract

The invention relates to the technical field of LED automatic detection, in particular to an LED automatic detector, which solves the shortcomings existing in the prior art and comprises a casing, wherein the casing is a cavity structure, a control panel is fixedly mounted on the casing, heat dissipation grooves are provided on both sides of the casing, and symmetrically arranged protective components are detachably fixedly mounted on the casing; the protective components comprise a strip plate, the strip plate is fixedly connected to the casing by countersunk screws, a mounting plate is fixedly provided at the bottom of the strip plate by screws, heat dissipation grooves are additionally provided on both sides of the casing, protective components are used at the heat dissipation grooves to isolate external dust and liquid, the protective components can be conveniently disassembled, and when disassembled, the internal partition plate can isolate the heat dissipation groove, thereby having a better protective effect on the equipment, avoiding the internal electrical components from being affected, ensuring the stable operation of the detection equipment, and extending the service life of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of LED automatic detection, in particular to an LED automatic detector. Background Art

[0002] Light-emitting diodes use electron-hole combination to emit monochromatic light to achieve lighting or warning purposes. Compared with traditional light sources, light-emitting diodes have the advantages of high luminous efficiency, long service life, not easy to break, and fast response speed. Due to the strong promotion of the government in recent years and the accelerated expansion of the scale of LED street lights in various cities, the use of LED for lighting purposes has been seen everywhere.

[0003] The equipment used for LED detection in the prior art is in a high-temperature working state for a long time. The traditional detection equipment has heat dissipation slots on both sides. However, dust and liquid are easily introduced into the slots, which affects the stable operation of the electrical components and shortens their service life. In addition, the LED detectors on the market have current surges during the detection process and are not suitable for fast lighting detection, resulting in low efficiency. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose an automatic LED detector.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The LED automatic detector comprises a housing, the housing is a cavity structure, a control panel is fixedly mounted on the housing, heat dissipation slots are provided on both sides of the housing, and symmetrically arranged protective components are detachably fixedly mounted on the housing;

[0007] The protection component includes a strip plate, the strip plate is fixedly connected to the housing by countersunk screws, a mounting plate is fixed to the bottom of the strip plate by screws, a mounting groove is opened on the mounting plate, a dust filter is fixed to the inner wall of the mounting groove by buckles, and a plurality of liquid-absorbing sponges distributed in an array are bonded to one side of the mounting plate;

[0008] A connecting rod is fixed on one side of the mounting plate, a transmission assembly is arranged on one side of the connecting rod, the connecting rod is connected to a rotating shaft through the transmission assembly, the rotating shaft is rotatably arranged inside the casing, and a rotating partition is arranged on the external fixed sleeve of the rotating shaft, and an insulating pad is arranged on one side of the rotating partition.

[0009] Preferably, the control panel is respectively provided with a power switch, a start switch, a reset switch and a display screen.

[0010] Preferably, support plates are fixed to the top wall and the bottom wall of the casing by screws, sprockets are mounted on the two support plates, and chain belts are sleeved on the outside of the sprockets.

[0011] Preferably, the transmission assembly comprises a driving wheel, a driven wheel and a synchronous belt, and the synchronous belt is sleeved on the outside of the driving wheel and the driven wheel;

[0012] The driving wheel and the driven wheel are respectively sleeved on the outside of the central axis and the rotating shaft on one side of one of the sprocket wheels.

[0013] Preferably, symmetrically arranged ball grooves are provided on the bottom wall of the housing, and positioning balls matching the ball grooves are installed at the bottom of the mounting plate.

[0014] Preferably, it also includes a PIN short-circuit test signal scanning circuit, a constant current reference signal changing circuit, an integration circuit, an 8-way constant current circuit, an LED positive voltage acquisition circuit, an LCD drive display circuit and a DA conversion circuit connected in sequence;

[0015] A converter for 8-channel voltage acquisition, the converter being connected to a PIN short-circuit test signal scanning circuit;

[0016] MCU main controller module used to control and connect various circuits.

[0017] The beneficial effects of the present invention are:

[0018] 1. In the present invention, heat dissipation grooves are added on both sides of the casing by setting up structures such as protective components, sprockets, transmission components, rotating partitions and insulating pads. Protective components are used at the heat dissipation grooves to isolate external dust and liquids. The protective components can be easily disassembled. When disassembled, the internal partitions can isolate the heat dissipation grooves, which has a good protective effect on the equipment, avoids the internal electrical components from being affected, ensures the stable operation of the detection equipment, and extends the service life of the equipment.

[0019] 2. The present invention adopts an 8-channel voltage acquisition converter, an MCU main controller module, a PIN short-circuit test signal scanning circuit, a constant current reference signal change circuit, an integration circuit, an 8-way constant current circuit / LED+voltage acquisition circuit, an LCD drive display circuit and a DA conversion circuit and other structural settings, which can support hot-swap lighting detection operations and can eliminate the need for personnel to press the start button. In other words, the machine is always in the start-up state when working, and personnel directly connect to the light bar, which automatically lights up. There is no current surge in the whole process, which is suitable for occasions of rapid lighting detection and greatly improves the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of the housing proposed by the present invention;

[0021] Figure 2 A front cross-sectional view of the housing provided by the present invention;

[0022] Figure 3A side view of the protection assembly proposed by the present invention;

[0023] Figure 4 This is a schematic diagram of the protective assembly proposed by the present invention when it is disassembled;

[0024] Figure 5 This is an enlarged view of the LED automatic detector provided by the present invention at the mark A;

[0025] Figure 6 This is a schematic diagram of the 8-channel voltage acquisition converter circuit proposed by the present invention;

[0026] Figure 7 This is a schematic diagram of the MCU main controller module circuit proposed by the present invention;

[0027] Figure 8 This is a schematic diagram of a PIN short circuit test signal scanning circuit proposed by the present invention;

[0028] Fig. 9 A schematic diagram of a constant current reference signal changing circuit and an integrating circuit proposed by the present invention;

[0029] Fig.10 This is a schematic diagram of an 8-way constant current circuit / LED positive voltage collection circuit proposed by the present invention;

[0030] Fig.11 This is a schematic diagram of the LCD driving display circuit proposed by the present invention;

[0031] Fig.12 This is a schematic diagram of the DA conversion circuit proposed by the present invention;

[0032] Fig.13 A detection flow chart of the LED automatic detector proposed by the present invention.

[0033] In the figure: 1 housing, 2 control panel, 3 heat sink, 4 protection component, 41 strip plate, 42 mounting plate, 43 mounting slot, 44 liquid absorbing sponge, 45 dust filter, 5 support plate, 6 sprocket, 7 chain belt, 8 timing belt, 9 shaft, 10 rotating partition, 11 ball slot, 12 positioning ball, 13 connecting rod, 14 insulating pad. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] Reference Figure 1-13The LED automatic detector includes a casing 1, which is a cavity structure. A control panel 2 is fixedly installed on the casing 1. Heat dissipation grooves 3 are provided on both sides of the casing 1, and a symmetrically arranged protective component 4 is detachably fixedly installed on the casing 1; the protective component 4 includes a strip plate 41, the strip plate 41 is fixedly connected to the casing 1 by countersunk screws, a mounting plate 42 is fixed to the bottom of the strip plate 41 by screws, a mounting groove 43 is provided on the mounting plate 42, a dust filter 45 is fixed to the inner wall of the mounting groove 43 by buckles, and a plurality of liquid-absorbing sponges 44 distributed in an array are bonded to one side of the mounting plate 42; a connecting rod 13 is fixed to one side of the mounting plate 42, a transmission assembly is provided on one side of the connecting rod 13, the connecting rod 13 is connected to a rotating shaft 9 through the transmission assembly, the rotating shaft 9 is rotatably arranged inside the casing 1, and a rotating partition 10 is provided on the outer fixed sleeve of the rotating shaft 9, and an insulating pad 14 is provided on one side of the rotating partition 10.

[0036] Among them, through the setting of structures such as protective components 4, sprockets 6, transmission components, rotating partitions 10 and insulating pads 14, heat dissipation grooves 3 are added on both sides of the casing 1. Protective components 4 are used at the heat dissipation grooves 3 to isolate external dust and liquid. The protective components 4 can be easily disassembled. When disassembled, the internal partitions can isolate the heat dissipation grooves 3, which has a good protection effect on the equipment and avoids the internal electrical components from being affected, ensuring the stable operation of the detection equipment and extending the service life of the equipment. The 8-channel voltage acquisition converter, MCU main controller module, PIN short-circuit test signal scanning circuit, constant current reference signal change circuit, integration circuit, 8-way constant current circuit / LED+voltage acquisition circuit, LCD drive display circuit and DA conversion circuit are used. The structure setting can support hot-swappable lighting detection mode operation and can exempt the personnel from pressing the start button. In other words, the machine is always in the starting state when working, and the personnel directly connect to the light bar to automatically light up. There is no surge in the current during the whole process, which is suitable for occasions of fast lighting detection and greatly improves the test efficiency.

[0037] The control panel 2 is provided with a power switch, a start switch, a reset switch and a display screen.

[0038] Support plates 5 are fixed to the top wall and the bottom wall of the casing 1 by screws. Sprocket wheels 6 are mounted on the two support plates 5 , and chain belts 7 are sleeved on the outside of the sprocket wheels 6 .

[0039] The transmission assembly includes a driving wheel, a driven wheel and a synchronous belt, and the synchronous belt is sleeved on the outside of the driving wheel and the driven wheel;

[0040] The driving wheel and the driven wheel are respectively sleeved on the central axis of one side of one of the sprocket wheels 6 and the outside of the rotating shaft 9.

[0041] The bottom wall of the housing 1 is provided with symmetrically arranged ball grooves 11 , and the bottom of the mounting plate 42 is provided with positioning balls 12 matching the ball grooves 11 .

[0042] It also includes a PIN short-circuit test signal scanning circuit, a constant current reference signal changing circuit, an integration circuit, an 8-way constant current circuit, an LED positive voltage acquisition circuit, an LCD drive display circuit and a DA conversion circuit which are connected in sequence;

[0043] A converter for 8-channel voltage acquisition, the converter being connected to a PIN short circuit test signal scanning circuit;

[0044] MCU main controller module used to control and connect various circuits.

[0045] The specific implementation process of the present invention is as follows: the process during testing is as follows: operate each button of the control panel 2, select the program, fill in the work order, connect the product, execute the learning function, press the start button on the online machine panel, enter the normal test mode, the system automatically completes all test items, automatically saves data in the specified path, the product automatically flows out, and an alarm is issued when NG is pending confirmation, and the test is completed;

[0046] Furthermore, the heat dissipation slots 3 on both sides can achieve a good heat dissipation effect, and the liquid-absorbing sponge 44 and the dust filter 45 on the protective component 4 can isolate external dust and liquid, thereby preventing the internal electrical components from being affected. After the protective component 4 has been used for a period of time, the personnel can remove the protective component 4 and replace it;

[0047] In addition, when the protective component 4 is pulled out, the strip plate 41 and the mounting plate 42 can drive the connecting rod 13 on one side to move, and the connecting rod 13 can thereby drive the chain belt 7, and the chain belt 7 can cause the two sprockets 6 to rotate. After the sprockets 6 rotate, the rotating shaft 9 can be rotated through the transmission component, thereby driving the two rotating partitions 10 to rotate. After the protective component 4 is completely pulled out, the internal rotating partition 9 rotates and closes to isolate the heat dissipation slot 3 from the interior of the casing 1. At the same time, the insulating pad 14 is used for protection to avoid short circuits, so that the casing 1 is in a safe state in real time. After replacing the dust filter 45 and the absorbent sponge 44, the protective component 4 can be re-installed into the interior of the casing 1.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic LED detector, comprising a housing (1), characterized in that: The casing (1) is a hollow structure, a control panel (2) is fixedly mounted on the casing (1), heat dissipation slots (3) are provided on both sides of the casing (1), and symmetrically arranged protective components (4) are detachably fixedly mounted on the casing (1); The protection component (4) comprises a strip plate (41), the strip plate (41) is fixedly connected to the housing (1) by countersunk screws, a mounting plate (42) is fixed to the bottom of the strip plate (41) by screws, a mounting groove (43) is provided on the mounting plate (42), a dust filter (45) is fixed to the inner wall of the mounting groove (43) by buckles, and a plurality of liquid-absorbing sponges (44) distributed in an array are bonded to one side of the mounting plate (42); A connecting rod (13) is fixed to one side of the mounting plate (42), a transmission assembly is provided on one side of the connecting rod (13), the connecting rod (13) is connected to a rotating shaft (9) via the transmission assembly, the rotating shaft (9) is rotatably arranged inside the housing (1), and a rotating partition (10) is provided on the outer fixed sleeve of the rotating shaft (9), and an insulating pad (14) is provided on one side of the rotating partition (10); The control panel (2) is respectively provided with a power switch, a start switch, a reset switch and a display screen; Support plates (5) are fixed to the top wall and the bottom wall of the housing (1) by screws, and sprockets (6) are installed on the two support plates (5), and chain belts (7) are sleeved on the outside of the sprockets (6); The transmission assembly includes a driving wheel, a driven wheel and a synchronous belt, and the synchronous belt is sleeved on the outside of the driving wheel and the driven wheel; The driving wheel and the driven wheel are respectively sleeved on the central axis of one side of one of the sprocket wheels (6) and the outside of the rotating shaft (9); The bottom wall of the housing (1) is provided with symmetrically arranged ball grooves (11), and the bottom of the mounting plate (42) is provided with positioning balls (12) matching the ball grooves (11); It also includes a PIN short-circuit test signal scanning circuit, a constant current reference signal changing circuit, an integration circuit, an 8-way constant current circuit, an LED positive voltage acquisition circuit, an LCD drive display circuit and a DA conversion circuit which are connected in sequence; A converter for 8-channel voltage acquisition, the converter being connected to a PIN short-circuit test signal scanning circuit; MCU main controller module used to control and connect various circuits.

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