CN217954687U

CN217954687U - Multifunctional tester for LED driver and switching power supply

Info

Publication number: CN217954687U
Application number: CN202221949675.7U
Authority: CN
Inventors: 钱志勇; 王�锋; 钟宇武
Original assignee: Guangdong NRE Technology Co Ltd
Current assignee: Guangdong NRE Technology Co Ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2022-12-02
Anticipated expiration: 2032-07-26

Abstract

The utility model discloses a LED driver and switching power supply multifunctional tester, including test jig, electric cabinet and power, be provided with removable test top and bottom plate device and PLC-HMI all-in-one on the test jig, the electric cabinet includes short-circuit protection circuit, voltage circuit, current circuit and withstand voltage go-no-go circuit, be provided with voltmeter, ampere meter and withstand voltage tester on the electric cabinet, removable test top and bottom plate device, short-circuit protection circuit, voltage circuit, current circuit, withstand voltage go-no-go circuit, withstand voltage tester respectively with PLC-HMI all-in-one electric connection, voltage circuit and voltmeter electric connection, current circuit and ampere meter electric connection, withstand voltage go-no-go circuit and withstand voltage tester electric connection, the power respectively with PLC-HMI all-in-one and electric cabinet electric connection. The utility model discloses can realize carrying out a series of unified tests such as function, withstand voltage to LED driver and switching power supply, reach high efficiency, save operating personnel's purpose.

Description

Multifunctional tester for LED driver and switching power supply

Technical Field

The utility model relates to a LED driver and switching power supply test field, concretely relates to LED driver and switching power supply multifunctional tester.

Background

After the LED driver and the switching power supply are produced, the product needs to be subjected to performance detection such as power and safety regulation.

However, in the current actual operation, various performances cannot be completed uniformly, detection needs to be performed for multiple times and multiple processes, and operation needs to be performed by multiple persons and multiple devices.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a LED driver and switching power supply multifunctional tester, can realize carrying out a series of unified tests such as function, withstand voltage to LED driver and switching power supply, reach high efficiency, save operating personnel's purpose.

The technical scheme of the utility model as follows:

the utility model provides a LED driver and switching power supply multifunctional tester, includes test jig, electric cabinet and power, be provided with removable test top and bottom clamp plate device and PLC-HMI all-in-one on the test jig, the electric cabinet includes short-circuit protection circuit, voltage circuit, current circuit and withstand voltage go-no-go circuit, be provided with voltmeter, ammeter and withstand voltage tester on the electric cabinet, removable test top and bottom clamp plate device, short-circuit protection circuit, voltage circuit, current circuit, withstand voltage go-no-go circuit, withstand voltage tester respectively with PLC-HMI all-in-one electric connection, voltage circuit and voltmeter electric connection, current circuit and ammeter electric connection, withstand voltage go-no-go circuit and withstand voltage tester electric connection, the power respectively with PLC-HMI all-in-one and electric cabinet electric connection.

Furthermore, the replaceable testing upper and lower pressing plate device is composed of a support, an upper pressing plate, a lower pressing plate and a lower pressing plate, wherein the lower pressing cylinder is arranged on the support, the upper pressing plate is movably arranged above the lower pressing plate, a cylinder shaft of the lower pressing cylinder is connected with the upper pressing plate, and the PLC-HMI all-in-one machine is electrically connected with the lower pressing cylinder.

Furthermore, the short-circuit protection circuit is composed of an alternating current contactor, an intermediate relay and an adjustable load resistor.

Furthermore, a load adjusting knob corresponding to the adjustable load resistor is arranged on the electric cabinet.

Furthermore, be provided with NG pilot lamp and OK pilot lamp on the test jig, NG pilot lamp and OK pilot lamp and PLC-HMI all-in-one electric connection.

Furthermore, a start button and a stop button are arranged on the test frame and are electrically connected with the PLC-HMI all-in-one machine.

Further, the power supply adopts a 24V power supply.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the occupied area of a production field is small, the production cost is low, and the production efficiency is high;

2. the multiple working procedures are integrated, so that the operation operators are reduced, multiple times of carrying in the operation process are reduced, and the operation productivity is improved;

3. the operation procedure is fixed, the time is adjustable, and the actions of operators are reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a circuit block diagram of the present invention;

fig. 3 is the circuit connection schematic diagram of the electric cabinet of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In order to explain the technical solution of the present invention, the following description is made by using specific examples.

Examples

Referring to fig. 1 to 3, the present embodiment provides a multifunctional tester for an LED driver and a switching power supply, which includes a testing frame 1, an electric cabinet 2 and a 24V power supply. The test jig 1 is provided with a replaceable test upper and lower pressing plate device 11, a PLC-HMI all-in-one machine 12, a starting button 13, a stopping button 14, an NG indicator light 15 and an OK indicator light 16, wherein the replaceable test upper and lower pressing plate device 11 consists of a bracket 111, an upper pressing plate 112, a lower pressing plate 113 and a lower pressing cylinder 114, the lower pressing cylinder 114 is arranged on the bracket 111, the upper pressing plate 112 is movably arranged above the lower pressing plate 113, the cylinder shaft of the lower pressing cylinder 114 is connected with the upper pressing plate 112, the lower pressing cylinder 114 can drive the upper pressing plate 112 to move up and down, and a test product is placed on the lower pressing plate 112 for testing; the electric cabinet 2 comprises a short-circuit protection circuit, a voltage circuit, a current circuit and a voltage-resistant sorting circuit, a load adjusting knob 21, a voltmeter 22, an ammeter 23 and a voltage-resistant tester 24 are arranged on the electric cabinet 2, the push-down cylinder 114, the short-circuit protection circuit, the voltage circuit, the current circuit, the voltage-resistant sorting circuit, the voltage-resistant tester 24, a start button 13, a stop button 14, an NG indicator lamp 15 and an OK indicator lamp 16 are respectively and electrically connected with the PLC-HMI all-in-one machine 12, the short-circuit protection circuit comprises an alternating current contactor, an intermediate relay and an adjustable load resistor, the load adjusting knob 21 can correspondingly adjust the adjustable load resistor, the voltage circuit is electrically connected with the voltmeter 22, the current circuit is electrically connected with the ammeter 23, the voltage-resistant sorting circuit is electrically connected with the voltage-resistant tester 24, and a 24V power supply is respectively and electrically connected with the PLC-HMI all-in-one machine 12 and the electric cabinet 2.

The LED driver and switching power supply multifunctional tester integrates the functions of short circuit testing, voltage and current function testing, voltage withstanding testing and the like. The short circuit test is a short circuit detection test of an LED driver and an internal circuit of the switching power supply and is a test of the input end of the switching power supply; the voltage and current function test is to test the output ends of the LED driver and the switch power supply multifunctional tester; and the voltage withstanding test is to carry out inspection and test on safety regulations of the LED driver and the multifunctional tester of the switching power supply.

When the PLC-HMI all-in-one machine works, required parameters (testing time, testing steps and the like) are set on the PLC-HMI all-in-one machine 12, a start button 13 is pressed, after the PLC-HMI all-in-one machine 12 receives an instruction, short circuit detection is carried out on each module of a tested product group, a judgment instruction is made, after the detection is qualified, next procedure detection is carried out, voltage and current parameters of each module are respectively displayed on a voltmeter 22 and an ammeter 23 through a voltage circuit and a current circuit, after the step is completed, discharging is carried out, a voltage resistance test is carried out again, products are judged, when NG is carried out, an NG indicator lamp 15 is lightened, and when OK is carried out, an OK indicator lamp 16 is lightened.

The operation process comprises the following steps:

1. setting parameters of system

2. Carrying out short-circuit protection detection on the product;

3. voltage/current load detection for products

4. Discharging the interior of the product;

5. and carrying out pressure resistance detection on the product.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a LED driver and switching power supply multifunctional tester which characterized in that: the test rack is provided with a replaceable test upper and lower pressing plate device and a PLC-HMI all-in-one machine, the electric cabinet comprises a short-circuit protection circuit, a voltage circuit, a current circuit and a voltage-withstanding sorting circuit, the electric cabinet is provided with a voltmeter, an ammeter and a voltage-withstanding tester, the replaceable test upper and lower pressing plate device, the short-circuit protection circuit, the voltage circuit, the current circuit, the voltage-withstanding sorting circuit and the voltage-withstanding tester are electrically connected with the PLC-HMI all-in-one machine respectively, the voltage circuit is electrically connected with the voltmeter, the current circuit is electrically connected with the ammeter, the voltage-withstanding sorting circuit is electrically connected with the voltage-withstanding tester, and the power supply is electrically connected with the PLC-HMI all-in-one machine and the electric cabinet respectively.

2. The LED driver and switching power supply multifunctional tester as claimed in claim 1, wherein: the replaceable testing upper and lower pressing plate device is composed of a support, an upper pressing plate, a lower pressing plate and a lower pressing cylinder, wherein the lower pressing cylinder is arranged on the support, the upper pressing plate is movably arranged above the lower pressing plate, a cylinder shaft of the lower pressing cylinder is connected with the upper pressing plate, and the PLC-HMI all-in-one machine is electrically connected with the lower pressing cylinder.

3. The LED driver and switching power supply multifunctional tester as claimed in claim 1, wherein: the short-circuit protection circuit consists of an alternating current contactor, an intermediate relay and an adjustable load resistor.

4. The LED driver and switching power supply multifunctional tester as claimed in claim 3, wherein: and the electric cabinet is provided with a load adjusting knob corresponding to the adjustable load resistor.

5. The LED driver and switching power supply multifunctional tester as claimed in claim 1, wherein: and the testing frame is provided with an NG indicator light and an OK indicator light which are electrically connected with the PLC-HMI all-in-one machine.

6. The LED driver and switching power supply multifunctional tester as claimed in claim 1, wherein: the test jig is provided with a start button and a stop button, and the start button and the stop button are electrically connected with the PLC-HMI all-in-one machine.

7. The LED driver and switching power supply multifunctional tester as claimed in claim 1, wherein: the power supply adopts a 24V power supply.