CN109459643B

CN109459643B - LED lamp testing device

Info

Publication number: CN109459643B
Application number: CN201811564502.1A
Authority: CN
Inventors: 王文静
Original assignee: Ningbo Yexin Microelectronics Technology Co ltd
Current assignee: Ningbo Yexin Microelectronics Technology Co ltd
Priority date: 2018-12-20
Filing date: 2018-12-20
Publication date: 2020-12-08
Anticipated expiration: 2038-12-20
Also published as: CN109459643A

Abstract

The invention relates to an LED lamp testing device, which comprises a box body, a lamp body socket, a first electromagnet for fixing a lamp body, a driving motor, a first screw rod connected with the driving motor, a sliding block on the first screw rod, and a second electromagnet arranged on the sliding block, wherein a photoelectric probe sliding block is arranged on the second screw rod corresponding to the position of the second electromagnet on the first screw rod, a ventilation channel is arranged at the bottom of the box body, and a heating device is arranged in the ventilation channel, so that the actual electrical property of an LED lamp can be tested in a high-temperature state.

Description

LED lamp testing device

Technical Field

The invention relates to the field of LED production equipment, in particular to an LED lamp production aging testing device.

Background

The light emitted by the LED lamp has the advantages of strong cold light and energy-saving and environment-friendly performance, and is widely used in life and work of people, and before the LED lamp leaves a factory and is put on the market, LED lamp manufacturers need to perform aging test on the LED lamp.

The existing LED lamp aging testing device mainly places a large number of LED finished lamps on an aging rack in a centralized mode, then lights for a period of time at a set temperature, and then takes the LED finished lamps off the aging rack after a period of time and tests the LED finished lamps.

Disclosure of Invention

The invention aims to solve the problems, designs an LED lamp testing device which is used for online aging test of an LED lamp and comprises a box body, a lamp body socket, a first electromagnet for fixing the lamp body, a driving motor, a first screw rod connected with the driving motor, a slide block on the first screw rod and a second electromagnet arranged on the slide block, wherein one end of the first screw rod is connected with the other end of a connecting motor through a bevel gear, the other end of the connecting rod is connected to the second screw rod through the bevel gear, a photoelectric probe slide block is arranged on the second screw rod at a position corresponding to the position of the second electromagnet on the first screw rod, through the connection design, one motor simultaneously drives the two screw rods to rotate, the step of the upper screw rod and the lower screw rod is ensured to be consistent, an elastic reed for fixing the lamp body is arranged on the lamp body socket, and the elastic reed can ensure that the LED lamp plays a fixing role when being inserted into the lamp body socket, the reed is positioned at the upper part of the lamp body socket, the middle non-metal position for fixing the LED lamp is prevented from electric shock hazard, a left electric connection sliding block and a right electric connection sliding block are arranged on the armature of the first electromagnet, a conductive block is arranged at the top part of the electric connection sliding block, which extends into the bottom part of the lamp body socket, the electric connection sliding block is made of non-conductive bakelite, a conductive material is arranged only at the position contacted with the LED lamp, the contact surfaces of the armature of the first electromagnet and the left electric connection sliding block and the right electric connection sliding block are both arranged as inclined planes, a tension spring for closing the sliding blocks is arranged between the two electric connection sliding blocks, the tension spring enables the left electric connection sliding block and the right electric connection sliding block to be close when the armature of the first electromagnet is not lifted out, the heads of the left electric connection sliding block and the right electric connection sliding block are retracted, the conductive blocks of the left electric connection sliding block and the right electric connection sliding block are not connected with the electrode of the LED lamp, the LED lamp to be tested can be taken down after detection and then the LED lamp to be tested is installed again, a ventilation channel is arranged at the bottom of the box body, a heating device is arranged in the ventilation channel and is controlled by a temperature control device arranged at the bottom, the testing is started when the temperature reaches a set temperature, the LED lamp to be tested is ensured to be carried out at the set temperature, two fans are respectively arranged at two ends of the ventilation channel, the wind of the first fan blows upwards, the wind of the second fan blows downwards and forms convection with the first fan, heat insulation materials are installed on the inner wall of the box body, and an openable transparent glass isolation cover is installed on the upper working face.

The preferred driving motor is a synchronous motor, and the synchronous motor can ensure that the test position is accurate when a plurality of LED lamps are tested.

The rotation direction of the screw thread of the first screw is preferably opposite to that of the screw thread of the second screw, and the design is that the rotation directions of the two screw rods converted by the fan-shaped connecting rod are opposite, so that in order to ensure that the electromagnet on the first screw rod corresponds to the position of the photoelectric probe on the second screw rod, the screw thread directions of the two screw rods are designed to be opposite, and the movement directions of the sliding blocks on the screw rods are ensured to be consistent.

The preferred heating device is made of ceramic heating materials, and the ceramic heating materials are free of open fire, so that fire accidents can be effectively avoided.

The preferred transparent glass isolation cover is made of toughened glass.

Furthermore, the main circuit of the invention is also provided with an emergency stop button so as to cut off the power supply in time to prevent the occurrence of accidents when the accidents occur.

The LED lamp testing device has the advantages that the actual electrical performance of the LED lamp can be tested in a high-temperature state, and the test product is connected with the power supply only when in testing and is not in contact with the power supply in a non-test state, so that the continuous testing can be realized, the production rhythm is ensured, the space is saved, the integration level is high, and the assembly and the arrangement of a production line are convenient.

Drawings

FIG. 1 is a cross-sectional view of an LED lamp testing device of the present invention;

FIG. 2 is a structural view of the electromagnet apparatus according to the present invention;

fig. 3 is a left side view of an LED lamp testing apparatus of the present invention.

In the figure, 100, a box body; 101. an LED lamp; 102. a lamp body socket; 103. a left electrical connection slider; 104. a right electrical connection slider; 105. an LED lamp electrode; 106. a second electromagnet armature; 107. a first electromagnet armature; 108. a conductive block; 110. a tension spring; 111. a photoelectric probe; 112. a second screw rod fixing seat; 113. a motor; 115 a first fan; 116. a temperature controller; 117. a first screw; 118 a heating device; 119. a second fan; 120 a first sector gear; 121. a second sector gear; 122. a connecting rod; 123. a second screw; 125. a first electromagnet; 126. a second electromagnet; 127. a reed; 128. a channel; 129. a thermal insulation material; 130. a glass cage; 131. an emergency stop button; 132. a slider; 133. a third sector gear; 135. a fourth sector gear; 136. and a contact.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings, as shown in fig. 1-3, an LED lamp 101 testing apparatus for online aging testing of LED lamps 101 includes a housing 100, a lamp body socket 102, a first electromagnet 125 for fixing the LED lamp 101, a driving motor 113, a first screw 117 connected to the driving motor 113, a slider 132 on the first screw 117, a second electromagnet 126 mounted on the slider 132, a first end of the first screw 117 connected to the motor 113 and the other end connected to a connecting rod 122 through a bevel gear 120 and a bevel gear 121, the other end of the connecting rod 122 connected to a second screw 123 through

bevel gears

133 and 135, a photoelectric probe 111 slider arranged on the second screw 123 at a position corresponding to the position of the second electromagnet 126 on the first screw 117, so that one motor 113 drives two screws to rotate simultaneously to ensure the step adjustment of the upper and lower screws, the lamp body socket 102 is provided with an elastic spring 127 for fixing the lamp body, the elastic spring 127 can ensure that the LED lamp 101 plays a fixing role when inserted into the lamp body socket 102, the spring 127 is positioned at the upper part of the lamp body socket 102, the middle non-metal position for fixing the LED lamp 101 prevents electric shock hazard, the armature 107 of the first electromagnet 125 is provided with a left electric connection sliding block 103 and a right electric connection sliding block 104, the top of the electric connection sliding block is deeply arranged at the bottom of the lamp body socket 102 and is provided with a conducting block 108, the electric connection sliding block is made of non-conducting bakelite, the conducting block 108 is arranged only at the position contacted with the electrode of the LED lamp 101, the contact surfaces of the armature 107 of the first electromagnet armature 125 and the left and right electric

connection sliding blocks

103 and 104 are both arranged as inclined surfaces, a tension spring 110 for closing the sliding blocks is arranged between the two electric

connection sliding blocks

103 and 104, and the tension spring 110 enables the left and right electric connection sliding blocks 103 and, the heads of the left and right electric

connection sliding blocks

103 and 104 are retracted, the conducting blocks 108 of the left and right electric

connection sliding blocks

103 and 104 are not connected with the electrodes of the LED lamp, the state of the unlocked LED lamp is shown in figure 2, the contact 136 electrically insulated from the armature is arranged at the armature head 106 of the second electromagnet 126, through the design, only the LED lamp 101 to be tested is connected with the power supply when the second electromagnet 126 moves at the first screw 117, the tested LED lamp 101 can be taken down and remounted with the LED lamp 101 to be tested, the bottom of the box body 100 is provided with a ventilation channel 128, a heating device 118 is arranged in the channel 128, the heating device 118 is controlled by a temperature control device 116 arranged at the bottom, the test is started when the temperature reaches the set temperature, each tested LED lamp 101 is ensured to be carried out at the set temperature, two

fans

115 and 119 are respectively arranged at the two ends of the channel 128, the wind of the first fan 115 blows upwards, the wind of the second fan 119 blows downwards to form convection with the first fan 115, the inner walls of the box body 100 are all provided with heat insulation materials 129, and the upper working surface is provided with an openable transparent glass isolation cover 130. The transparent glass shield 130 in the embodiment is made of tempered glass.

The specific working process of this embodiment is that, after the testing device starts working, the temperature control device 116 first checks whether the temperature reaches the set temperature, and first heats when the temperature does not reach the set temperature, after the temperature reaches the set temperature, the motor 113 starts rotating to move the second electromagnet 126 and the photoelectric probe 111 to the leftmost first lamp body socket 102 position, and after reaching a predetermined position, the first lamp body socket 102 operates the left and right first electromagnets 125, the armature 107 moves upward to separate the left and right

electric connection sliders

103 and 104 and clamp the lower screw electrode of the LED lamp 101 from the left and right sides, at the same time, the second electromagnet 126 operates the armature 106 to move upward to contact the contact 136 with the bottom electrode 105 of the LED lamp 101, then the two electrodes are energized, the photoelectric probe 111 detects photoelectric data, other electric performance testing instruments detect electric performance, after the detection is finished, the first electromagnet 125 and the second electromagnet 126 are de-energized, the armature retracts into the electromagnet, the motor 113 rotates again to move the second electromagnet and the photoelectric probe to the next lamp body socket 102 position for testing, and due to the mode that the LED lamp 101 is fixed in position and powered on only during testing, the tested lamp and the untested lamp can be freely inserted and pulled out, so that the testing can be continuously carried out and no electric shock hazard exists.

In this embodiment, the driving motor 113 is a synchronous motor, and the synchronous motor can ensure that the test position is accurate when a plurality of LED lamps are tested.

In the embodiment, the rotation direction of the thread of the first screw 117 is opposite to the rotation direction of the thread of the second screw 123, because the rotation directions of the two screws converted by the sector gear connecting rod 122 are opposite, and in order to ensure that the positions of the first electromagnet 126 on the first screw 117 and the photoelectric probe 111 on the second screw 123 correspond, the thread directions of the two screws are designed to be opposite, so that the moving directions of the sliders on the screws are consistent.

The heating device 118 in the embodiment is made of ceramic heating materials, and the ceramic heating materials do not have open fire, so that fire accidents can be effectively avoided.

Meanwhile, the main circuit of the present invention is further provided with an emergency stop button 131 to cut off the power supply in time to prevent an accident.

The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.

Claims

1. An LED lamp testing device is used for online aging test of an LED lamp and comprises a box body and a lamp body socket and is characterized by also comprising a first electromagnet for fixing a lamp body, a driving motor, a first screw rod connected with the driving motor, a slide block arranged on the first screw rod and a second electromagnet arranged on the slide block, wherein one end of the first screw rod is connected with the other end of the driving motor through a bevel gear and is connected to a connecting rod, the other end of the connecting rod is connected to a second screw rod through the bevel gear, a photoelectric probe slide block is arranged on the second screw rod at a position corresponding to the position of the second electromagnet on the first screw rod, an elastic reed for fixing the lamp body is arranged on the lamp body socket, a left electric connection slide block and a right electric connection slide block are arranged on an armature of the first electromagnet, a conductive block is arranged at the top of the electric connection slide blocks, and the contact surfaces of the armature of the first, the two ends of the channel are respectively provided with a fan, wherein the wind of the first fan blows upwards, the wind of the second fan blows downwards to form convection with the first fan, the inner wall of the box body is provided with a heat insulation material, and the working surface at the upper part of the box body is provided with an openable transparent glass isolation cover.

2. The LED lamp testing apparatus of claim 1, wherein the driving motor is a synchronous motor.

3. The LED lamp testing apparatus of claim 1, wherein the direction of rotation of the first screw threads is opposite to the direction of rotation of the second screw threads.

4. The LED lamp testing device of claim 1, wherein the transparent glass shield is made of tempered glass.

5. The LED lamp testing device as claimed in claim 1, wherein the case further comprises an emergency stop switch.