Inspection equipment for LED display screen production

Abstract

The utility model provides inspection equipment for LED display screen production, which relates to the technical field of LED display screen inspection and comprises an aging inspection machine, four inspection plates mounted in the aging inspection machine, two supporting blocks mounted on two sides of the tops of the four inspection plates, and a box door arranged on two sides of the outer end of the aging inspection machine and rotationally connected through hinges. And the observation window is arranged in the box door, and high-temperature-resistant transparent tempered glass is arranged in the observation window. According to the inspection equipment for LED display screen production, hot air heat can be discharged to the LED display screen in a one-to-one manner through the heating assembly, so that the LED display screen can be uniformly heated for a high-temperature-resistant aging test, the problem that the high-temperature-resistant test speed of the LED display screen is relatively low is solved, the LED display screen is lighted up to operate in a high-temperature environment, and in the aging test process, the LED display screen is prevented from being damaged. The performance change of the LED display screen can be observed and recorded through the observation window, and the weather resistance and reliability of the LED display screen can be evaluated after the test is finished.

Description

TECHNICAL FIELD

[0001] The utility model relates to LED display screen inspection technical field, concretely is a kind of inspection equipment for LED display screen production. BACKGROUND

[0002] LED display screen is a kind of plane display equipment using light emitting diode as display unit, it shows different image, character or video content by controlling the brightness and color of each LED pixel point, LED display screen has high brightness, low power consumption, long life, color bright and so on It is widely used in household appliances, industry and communication equipment, medical equipment, vehicle-mounted display, instrument and meter, indoor and outdoor LED display module and other fields, with the progress of science and technology and the change of market demand, LED display screen industry is also developing continuously, in the future, LED display screen can develop towards higher resolution, more flexible shape, lower power consumption and more intelligent control direction.

[0003] When LED display screen is produced, high-temperature thermal aging test equipment is needed to simulate high-temperature environment to test the high-temperature resistance of LED display screen and carry out aging experiment, the design purpose of this equipment is to improve the stability and reliability of product, and qualified products and unqualified products can be detected, when existing high-temperature thermal aging test equipment is used, multiple LED display screens are placed in aging test machine in interval and arranged neatly, heat is dispersed in LED display screens at different positions by heating, instead of one-to-one arrangement of heat for heating, which leads to uneven heating of LED display screen, and causes slow high-temperature resistance test speed of LED display screen. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model lies in: provide a kind of inspection equipment for LED display screen production, can one-to-one hot air heat be discharged to the place of LED display screen by heating component, so that LED display screen can be evenly heated to carry out high-temperature aging test, solve the problem of slow high-temperature resistance test speed of LED display screen, LED display screen is lighted and operated under high-temperature environment, in the process of aging test, the performance change of LED display screen can be observed and recorded through observation window, after testing, the weather resistance and reliability of LED display screen are evaluated.

[0005] The technical problem to be solved by the utility model adopts the following technical solutions to realize:

[0006] The utility model provides a kind of LED display screen production is with inspection equipment, including: aging inspection machine, four inspection plates installed in the inside of the aging inspection machine, two support blocks are installed in the top of the two sides of four inspection plates, box door is set to the both sides outside the aging inspection machine by hinged rotation connection, observation window is installed in the inside of the box door, high-temperature-resistant transparent tempered glass is installed in the inside of the observation window, heating assembly is set to the one side outside the aging inspection machine, the heating assembly includes: equipment box, fan, heating wire, air outlet, hot air pipe and tap.

[0007] Preferably, the one side outside the aging inspection machine is provided with the equipment box, the inside top of the equipment box is provided with the fan, the inside of the fan is provided with the heating wire, the bottom of the fan is provided with the air outlet, the bottom of the air outlet is provided with the hot air pipe with the structure of "U", the hot air pipe penetrates the inside of the aging inspection machine, the tap is installed between the hot air pipe and the four inspection plates, and the tap is located at the bottom of the two support blocks.

[0008] Preferably, the one side outside the aging inspection machine is provided with the equipment box, the inside top of the equipment box is provided with the fan, the inside of the fan is provided with the heating wire, the bottom of the fan is provided with the air outlet, the bottom of the air outlet is provided with the hot air pipe with the structure of "U", the hot air pipe penetrates the inside of the aging inspection machine, the tap is installed between the hot air pipe and the four inspection plates, and the tap is located at the bottom of the two support blocks.

[0009] Preferably, the one side outside the aging inspection machine is provided with the equipment box, the inside top of the equipment box is provided with the fan, the inside of the fan is provided with the heating wire, the bottom of the fan is provided with the air outlet, the bottom of the air outlet is provided with the hot air pipe with the structure of "U", the hot air pipe penetrates the inside of the aging inspection machine, the tap is installed between the hot air pipe and the four inspection plates, and the tap is located at the bottom of the two support blocks.

[0010] Preferably, the one side outside the aging inspection machine is provided with the equipment box, the inside top of the equipment box is provided with the fan, the inside of the fan is provided with the heating wire, the bottom of the fan is provided with the air outlet, the bottom of the air outlet is provided with the hot air pipe with the structure of "U", the hot air pipe penetrates the inside of the aging inspection machine, the tap is installed between the hot air pipe and the four inspection plates, and the tap is located at the bottom of the two support blocks.

[0011] Preferably, the one side outside the aging inspection machine is provided with the equipment box, the inside top of the equipment box is provided with the fan, the inside of the fan is provided with the heating wire, the bottom of the fan is provided with the air outlet, the bottom of the air outlet is provided with the hot air pipe with the structure of "U", the hot air pipe penetrates the inside of the aging inspection machine, the tap is installed between the hot air pipe and the four inspection plates, and the tap is located at the bottom of the two support blocks.

[0012] Preferably, the one side outside the aging inspection machine is provided with the equipment box, the inside top of the equipment box is provided with the fan, the inside of the fan is provided with the heating wire, the bottom of the fan is provided with the air outlet, the bottom of the air outlet is provided with the hot air pipe with the structure of "U", the hot air pipe penetrates the inside of the aging inspection machine, the tap is installed between the hot air pipe and the four inspection plates, and the tap is located at the bottom of the two support blocks.

[0013] The utility model has the advantages that:

[0014] (1) the heating assembly of the utility model can one-to-one hot air heat to the LED display screen, so that the LED display screen can be evenly heated for high-temperature aging test, solve the problem of slow high-temperature test speed of LED display screen, and the LED display screen can be observed and recorded through the observation window during the aging test process, and the weather resistance and reliability of the LED display screen can be evaluated after the test is completed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic view of the utility model.

[0016] Figure 2 It is the inside structure schematic view of the aging testing machine of the utility model.

[0017] Figure 3 It is the whole cross section schematic view of the utility model.

[0018] Figure 4 It is the whole structure schematic view of the utility model. Figure 3 The enlarged schematic view of A in the middle.

[0019] Figure 5 It is the fan, the air outlet, the hot air pipe and the tapping pipe connecting structure schematic view of the utility model.

[0020] Figures 1-5 Middle: 1, aging testing machine;101, testing plate;102, support block;103, control card;104, power supply;105, control case;106, control panel;2, box door;201, observation window;3, equipment box;301, fan;302, heating wire;303, air outlet;304, hot air pipe;305, tapping pipe;306, air inlet;307, impurity screen;4, heat dissipation hole;5, through hole;6, heat dissipation fin;601, heat dissipation fan;602, heat dissipation port;603, dust screen. Specific implementation

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application, obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments, based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without making creative labor are within the protection scope of the present application.

[0022] The present application will be described in detail below in conjunction with the drawings and specific implementation.

[0023] Embodiment

[0024] As Figures 1-5As shown, an LED display screen production inspection equipment, including: aging inspection machine 1, installed in the aging inspection machine 1 four inspection board 101, four inspection board 101 top two sides are equipped with two support block 102, set up in the aging inspection machine 1 outside end both sides through the hinge rotating connection door 2, installed in the door 2 observation window 201, observation window 201 inside the high temperature resistant transparent tempered glass, set up in the aging inspection machine 1 outside end side of the heating assembly, heating assembly includes: equipment box 3, fan 301, heating wire 302, air outlet 303, hot air pipe 304 and tap pipe 305.

[0025] Among them, two support block 102 side are equipped with control card 103, two support block 102 the other side are equipped with power supply 104, aging inspection machine 1 inside one side is equipped with control machine box 105, control machine box 105 is equipped with control panel 106.

[0026] When the LED display screen aging inspection, first through artificial LED display screen appearance detection, check the appearance of LED display screen whether neat, installation is flat and installation position is correct, check the appearance is correct, put the LED display screen into the aging inspection machine 1, and put on two support block 102, according to the interface type of LED display screen and control card 103, prepare the corresponding connection cable, control card 103 and LED display screen corresponding interface connection, then the power input end of LED display screen is connected to the output end of power supply 104, through the control panel 106 to control card 103 configuration, including setting the resolution, brightness, color and other parameters of LED display screen, in order to ensure that all the connection is correct, start aging test machine 1, through control card 103 signal to LED display screen, light up LED display screen, check whether the LED display screen is working properly, including whether there is a bad point, brightness is uniform, color is normal, found that there is no LED display screen, there is a bad point, brightness is not uniform and color is not normal product, directly from the aging inspection machine 1 inside, easy to collect LED display screen back to the production workshop for rework.

[0027] Among them, the support block 102 top side is equipped with a convex block, the support block 102 top is concave structure, LED display screen is placed on the support block 102, through the convex block of support block 102 top can prevent LED display screen slip out of the fall, avoid LED display screen broken.

[0028] The control machine case 105 is provided with a heat dissipation fin 6 on the top, the heat dissipation fin 6 is provided with a heat dissipation fan 601 on the top, the aging tester 1 is provided with a heat dissipation port 602 on the top at the position opposite to the heat dissipation fan 601, and the heat dissipation port 602 is provided with a dust screen 603 on the top. When the control machine case 105 is used, the electronic devices in the control machine case 105 will generate heat for a long time, the heat generated is conducted and dissipated through the heat dissipation fin 6 on the top of the control machine case 105, the dissipated heat is extracted through the heat dissipation fan 601, and the heat is discharged to the outside of the aging tester 1 through the heat dissipation port 602. The hot air is taken away through natural air convection, so as to accelerate the heat dissipation speed of the control machine case 105, avoid the electronic devices in the control machine case 105 from being damaged due to heat, and prevent dust from entering the aging tester 1 and the control machine case 105 through the dust screen 603 during the use of the heat dissipation port 602, so as to avoid the dust in the aging tester 1 and the control machine case 105 from affecting the normal use of the electronic devices.

[0029] The aging tester 1 is provided with a device box 3 on one side of the outer end, the device box 3 is provided with a fan 301 on the inner top, the fan 301 is provided with a heating wire 302 in the inner, the fan 301 is provided with an air outlet 303 on the bottom, and the air outlet 303 is provided with a hot air pipe 304 in a "U" shape on the bottom. The hot air pipe 304 penetrates into the aging tester 1, and the hot air pipe 304 is provided with a tapping pipe 305 between the hot air pipe 304 and the four test plates 101. The tapping pipe 305 is located at the bottom of the two support blocks 102.

[0030] After the LED display screen is lighted and confirmed to work normally, the brightness aging test is carried out for more than 72 hours, the fan 301 and the heating wire 302 are started to work, the fan 301 blows the hot air generated by the heating wire 302 into the air outlet 303, the hot air is discharged to the tapping pipe 305 through the hot air pipe 304. Since the tapping pipe 305 corresponds to the position of the support block 102 one by one, and the LED display screen is placed on the support block 102, the hot air can be discharged to the LED display screen one by one through the tapping pipe 305, so that the LED display screen can be uniformly heated to perform the high-temperature aging test, and the problem of slow high-temperature test speed of the LED display screen is solved. The LED display screen is lighted and operated in a high-temperature environment, and the performance change of the LED display screen can be observed and recorded through the observation window 201 during the aging test process. After the test is completed, the weather resistance and reliability of the LED display screen are evaluated.

[0031] The heating temperature of the heating wire 302 can be set through the control panel 106 during the use of the heating wire 302, so as to meet the use requirement of the high-temperature test of the LED display screen.

[0032] The device box 3 is provided with an air inlet 306 at the top and connected with the fan 301. The air inlet 306 is provided with a screen 307 at the top. When the fan 301 is used, the fan 301 generates negative pressure to suck external air from the air inlet 306, so as to ensure the normal starting of the fan 301. When the air inlet 306 is used, the screen 307 can prevent dust from being sucked, so as to avoid the generation of dust on the LED display screen.

[0033] The four test plates 101 are provided with heat exhaust holes 4 at the top on one side and through holes 5 at the top in the middle. The hot air pipe 304 exhausts hot air to the tapping pipe 305. Since one end of the hot air pipe 304 is located at the bottom of the heat exhaust hole 4, the hot air can flow between the heat exhaust hole 4 and the through hole 5 after being exhausted from the hot air pipe 304, that is, the heat is dissipated around the LED display screen, so as to accelerate the heat aging test speed of the LED display screen.

[0034] Working principle:

[0035] When the LED display screen is aged and tested, the appearance of the LED display screen is detected by manual operation. Whether the appearance of the LED display screen is neat, whether the installation is flat, and whether the installation position is correct are checked. After the appearance is checked, the LED display screen is placed in the aging tester 1 and placed on the two supporting blocks 102. According to the interface type of the LED display screen and the control card 103, the corresponding connecting cable is prepared, the control card 103 is connected with the corresponding interface of the LED display screen, the power input end of the LED display screen is connected to the output end of the power supply 104, the control card 103 is configured through the control panel 106, including setting the resolution, brightness, color and other parameters of the LED display screen. After ensuring that all connections are correct, the aging tester 1 is started, signals are sent to the LED display screen through the control card 103, the LED display screen is lighted, whether the LED display screen works normally is checked, including whether there is a dead point, whether the brightness is uniform, and whether the color is normal. If the LED display screen is not lighted, there is a dead point, the brightness is not uniform, and the color is not normal, the LED display screen is directly taken out from the aging tester 1, so as to collect the unqualified LED display screen and send it back to the production workshop for rework.

[0036] After the LED display screen is lighted and it is confirmed that it works normally, the brightness aging test is carried out for more than 72 hours, and the fan 301 and the heating wire 302 are started to work, the fan 301 blows the heating wire 302 to form hot air blowing into the air outlet 303, the hot air heat is discharged to the tapping pipe 305 through the hot air pipe 304, because the tapping pipe 305 corresponds to the position of the supporting block 102 one by one, and the LED display screen is placed on the supporting block 102, the hot air heat can be discharged to the LED display screen one by one through the tapping pipe 305, so that the LED display screen can be uniformly heated to carry out the high temperature aging test, the problem that the high temperature test speed of the LED display screen is slow is solved, the LED display screen is lighted and runs in the high temperature environment, in the aging test process, the performance change of the LED display screen can be observed through the observation window 201 and recorded, after the test is finished, the weather resistance and reliability of the LED display screen are evaluated.

[0037] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0038] The above describes in detail the inspection equipment for LED display screen production provided by the embodiments of the present application, the principle and implementation mode of the present application are described by applying specific examples, the above embodiment description is only used to help understand the technical solutions and core ideas of the present application, and the person skilled in the art should understand that: the technical solutions recorded in the above embodiments can still be modified, or some technical features can be replaced, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An inspection apparatus for LED display screen production, characterized in that, Include: Aging testing machine (1); Four test boards (101) are installed inside the aging testing machine (1), two support blocks (102) are installed on both sides of the top of the four test boards (101); The box door (2) is rotatably connected by hinges on both sides of the outer end of the aging testing machine (1); An observation window (201) is installed inside the box door (2), and a high-temperature-resistant transparent tempered glass is installed inside the observation window (201); A heating assembly is arranged on one side of the outer end of the aging testing machine (1), which comprises: a device box (3), a fan (301), a heating wire (302), an air outlet (303), a hot air pipe (304) and a tapping pipe (305). 2.The LED display screen production inspection device according to claim 1, characterized in that, A device box (3) is installed on one side of the outer end of the aging testing machine (1), a fan (301) is installed at the top of the device box (3), a heating wire (302) is installed inside the fan (301), an air outlet (303) is installed at the bottom of the fan (301), a hot air pipe (304) with a "U" shape structure is installed at the bottom of the air outlet (303), the hot air pipe (304) penetrates the inside of the aging testing machine (1), and a tapping pipe (305) is installed between the hot air pipe (304) and the four test boards (101). The tapping pipe (305) is located at the bottom of the two support blocks (102). 3.The LED display screen production inspection device according to claim 1, characterized in that, A control card (103) is installed on one side of the two support blocks (102), a power supply (104) is installed on the other side of the two support blocks (102), a control cabinet (105) is installed on one side of the inside of the aging testing machine (1), and a control panel (106) is installed on the control cabinet (105).

4. The inspection apparatus for LED display screen production according to claim 1, characterized in that, The top of the support block (102) is provided with a protruding block, and the top of the support block (102) is recessed.

5. The inspection apparatus for LED display screen production according to claim 2, characterized in that, An air inlet (306) is formed in the top of the device box (3) and is connected to the fan (301), and a screen (307) is installed on the top of the air inlet (306). 6.The LED display screen production inspection device according to claim 1, characterized in that, Four test boards (101) are installed on one side of the top of the four test boards (101), and a through hole (5) is formed in the middle of the top of the four test boards (101). 7.The LED display screen production inspection device according to claim 3, characterized in that, A heat dissipation fin (6) is installed on the top of the control cabinet (105), a heat dissipation fan (601) is installed on the top of the heat dissipation fin (6), a heat dissipation port (602) is formed on one side of the top of the aging testing machine (1) opposite to the heat dissipation fan (601), and a dustproof net (603) is installed on the top of the heat dissipation port (602).

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