CN219042037U

CN219042037U - Lamp for testing LED driving plate

Info

Publication number: CN219042037U
Application number: CN202223336160.2U
Authority: CN
Inventors: 文权; 曾学仁; 许谦; 刘谋仁
Original assignee: Zhejiang Twinsel Electronic Technology Co Ltd
Current assignee: Zhejiang Twinsel Electronic Technology Co Ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-05-16
Anticipated expiration: 2032-12-12

Abstract

The application discloses lamps and lanterns for LED drive plate test belongs to LED drive plate test technical field, and it includes the lamp cluster that many parallelly connected set up, is suitable for through parallel switch electricity connection between the tip of two adjacent lamp clusters, and wherein every lamp cluster is equipped with the lamp pearl that a plurality of series connection set up, is suitable for through a series switch electricity connection between the positive and negative poles of every lamp pearl, and the both ends of one of them lamp cluster are suitable for being connected with the positive and negative pole electricity of drive plate. The lamp has the advantages of being capable of adjusting rated voltage and rated current of the lamp for testing according to the plate type number of the driving plate, low in use cost and more convenient for mass production and testing of the driving plate.

Description

Lamp for testing LED driving plate

Technical Field

The application relates to the technical field of LED drive plate testing, in particular to a lamp for LED drive plate testing.

Background

The LED is a semiconductor device with sensitive characteristics, the LED is required to be in a stable working state and protected in the application process, unlike an ordinary incandescent bulb, the LED can be directly connected with 220V alternating current commercial power, a driving plate is required to be arranged, a special lamp is required to be used for testing when the LED driving plate is produced in a large scale, but the LED driving plate has a plurality of plate types, the LED driving plate is usually provided with one-to-one corresponding lamps for testing aiming at each model, 16 lamps for testing are required to be manufactured when the LED driving plate series has 16 product models in total, the manufacturing cost is high, the inventory space is wasted, and the lamps for testing are easy to damage due to the fact that the lamps for testing are taken by mistake or the testing parameters are not accurate enough.

Therefore, a new lamp for testing an LED driving board needs to be designed.

Disclosure of Invention

An object of the application is to provide a lamps and lanterns for LED drive plate test, realize the test of the multiple model LED drive plate of adaptation, convenient to use and use cost are low.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows: the utility model provides a lamps and lanterns for LED drive plate test, it includes many parallelly connected lamp strings that set up, two adjacent be suitable for through a parallel switch electricity connection between the tip of lamp string, wherein every the lamp string is equipped with a plurality of lamp pearls that set up in series, every be suitable for through a series switch electricity connection between the positive and negative two poles of lamp pearl, wherein the both ends of a lamp string are suitable for with the positive and negative pole electricity connection of drive plate.

Preferably, the plurality of light strings are arranged row by row, each light string is provided with the same number of light beads, and the plurality of light beads are arranged row by row.

Preferably, the plurality of light strings are four, and each light string comprises four light beads.

Preferably, the end of the first row of light strings is electrically connected with the end of the second row of light strings through a first parallel switch, the end of the second row of light strings is electrically connected with the end of the third row of light strings through a second parallel switch, the end of the third row of light strings is electrically connected with the end of the fourth row of light strings through a third parallel switch, and a positive power connector and a negative power connector are led out from the two ends of the fourth row of light strings to be electrically connected with the positive electrode and the negative electrode of the driving board.

Preferably, each light string is provided with four series switches corresponding to the light beads one by one, and each series switch is arranged opposite to the corresponding light bead.

Preferably, the LED lamp further comprises a packaging shell, wherein the plurality of lamp strings, the parallel switch and the series switch are arranged on the upper surface of the packaging shell, and the power positive connector and the power negative connector are arranged on the side surface of the packaging shell.

Preferably, when the number of the parallel switches is plural, the parallel switches are disposed between the anode ends of the two light strings, or the parallel switches are disposed between the cathode ends of the two light strings, and the parallel switches are disposed along the same column.

Preferably, the plurality of beads are identical in specification.

Further preferably, each of the lamp beads has a specification of 12V and 500mA.

Preferably, the parallel switch and the series switch are both boat-shaped switches, the plurality of series switches are in an off state when being pulled in a first direction, are in an on state when being pulled in a second direction, are in an off state when being pulled in a third direction, and are in an on state when being pulled in a fourth direction.

Compared with the prior art, the beneficial effect of this application lies in: (1) The lamp strings are mutually connected in parallel, namely, the lamp beads are connected in series and parallel, and a parallel switch or a series switch is adopted to control the lamp beads, so that the rated current and the rated voltage of the lamp for testing can be regulated according to the signals of the LED driving plate; (2) The test lamp can be used for testing LED driving boards with various models, is suitable for mass production testing and maintenance procedures of the LED driving boards, and compared with the prior art, a plurality of jigs are combined into one by adopting a mode of serial-parallel combination and switch control, so that the manufacturing cost of the jigs is reduced, the inventory space is saved, and the damage to the jigs caused by taking wrong lamps is effectively avoided.

Drawings

FIG. 1 is a partial model summary of a prior art LED driver board;

fig. 2 is a schematic perspective view of a lamp for testing an LED driving board;

FIG. 3 is a schematic diagram of the internal structure of a lamp for testing an LED driving board;

fig. 4 is a schematic circuit diagram of a lamp for testing an LED driving board;

FIG. 5 is an embodiment of adjusting the lamp specification to 12V/500 mA;

FIG. 6 is an embodiment of adjusting the lamp specification to 12V/1000 mA;

FIG. 7 is an embodiment of adjusting the lamp specification to 48V/2000 mA;

in the figure: 10. a light string; 101. a lamp bead; 20. a parallel switch; 40. a series switch; 50. a package housing;

11. a first row of light strings; 12. a second row of light strings; 13. a third row of light strings; 14. a fourth row of light strings;

21. a first parallel switch; 22. a second parallel switch; 23. a third parallel switch;

31. a power supply positive joint; 32. a negative power connection.

Detailed Description

The present application will be further described with reference to the specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.

In the description of the present application, it should be noted that, for the azimuth terms such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not to be construed as limiting the specific protection scope of the present application that the device or element referred to must have a specific azimuth configuration and operation, as indicated or implied.

It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

The terms "comprises" and "comprising," along with any variations thereof, in the description and claims of the present application are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.

Fig. 1 is a partial model of an LED driving board produced by the applicant, and the corresponding rated voltages thereof are divided into four steps of 12V, 24V, 36V and 48V, and four rated currents of 500mA, 1000mA, 1500mA and 2000mA are respectively set for different rated voltages, and when the LED driving board with 16 models is subjected to mass production test, test lamps with 16 corresponding rated parameters such as 12V/500mA, 24V/500mA, 12V/1000mA and 24V/1000mA need to be set, so that the manufacturing cost is high, the stock space is wasted, and the lamp damage or the test parameters are not accurate enough due to the error of the test lamps are easy to cause.

For this reason, the present application provides a lamp for testing an LED driving board, as shown in fig. 1 to 7, which includes a plurality of lamp strings 10 arranged in parallel, wherein the ends of two adjacent lamp strings 10 are adapted to be electrically connected through a parallel switch 20, each lamp string 10 is provided with a plurality of serially arranged lamp beads 101, the positive and negative poles of each lamp bead 101 are adapted to be electrically connected through a serial switch 40, and the two ends of one lamp string 10 are adapted to be electrically connected with the positive and negative poles of the driving board.

The lamp strings 10 are mutually connected in parallel, that is, the lamp beads 101 are connected in series and parallel, a parallel switch 20 or a series switch 40 is adopted between the lamp beads 101 and the lamp beads 101 for control, and rated current and rated voltage of the lamp for testing can be regulated according to signals of the LED driving board, wherein the specific regulation principle is as follows: the parallel switch 20 is arranged between the ends of two adjacent light strings 10, the number of the light strings 10 connected with the positive electrode and the negative electrode of the driving board can be adjusted by controlling the on-off of the parallel switch 20, the more the light strings 10 are connected in parallel, the larger the rated current of the test light is, and the serial switch 40 is connected between the positive electrode and the negative electrode of each light bead 101, and after a certain serial switch 40 is pressed, the corresponding light bead 101 can be short-circuited, the number of the light beads 101 flowing through the current in each light string 10 can be adjusted by controlling the on-off of the serial switch 40, the larger the number of the light beads 101 flowing through the current in each light string 10, the larger the rated voltage of the test light is, and the test light can be adapted to the test of LED driving boards of various types.

It can be understood that, when the ends of two adjacent light strings 10 are adapted to be electrically connected by a parallel switch 20, the number of parallel switches 20 is the number of the light strings 10 minus one, so that the light strings 10 can be controlled to be turned on one by one.

Preferably, the plurality of light strings 10 are arranged row by row, each light string 10 is provided with the same number of light beads 101, and the plurality of light beads 101 are arranged row by row. The arrangement rule of the lamp beads 101 is convenient for the arrangement of the series switch 40, the parallel switch 20 and the wires, the lighting condition is convenient to observe during the test, and whether the rated current and the rated voltage are set incorrectly or not is deduced through the lighting condition.

Specifically, the number of the light strings 10 is four, and each light string 10 includes four light beads 101.

More specifically, as shown in fig. 2, each light string 10 is distinguished by a dashed frame in fig. 2, sixteen switches except for the first parallel switch 21, the second parallel switch 22 and the third parallel switch 23 are all series switches 40, the end portion of the first light string 11 and the end portion of the second light string 12 are adapted to be electrically connected through the first parallel switch 21, the end portion of the second light string 12 and the end portion of the third light string 13 are adapted to be electrically connected through the second parallel switch 22, the end portion of the third light string 13 and the end portion of the fourth light string 14 are adapted to be electrically connected through the third parallel switch 23, the circuit between the front three light strings 10 and the fourth light string 14 is controlled to be on-off by the three parallel switches 20, and the two ends of the fourth light string 14 are led out of the power positive connector 31 and the power negative connector 32 to be electrically connected with the positive electrode and the negative electrode of the driving board.

Each light string 10 is provided with four series switches 40 corresponding to the light beads 101 one by one, each series switch 40 is arranged opposite to the corresponding light bead 101, and the series switches 40 are arranged close to the corresponding light bead 101, so that circuit connection is facilitated, and adjustment and control of the corresponding light bead 101 are facilitated.

The test lamp further comprises a package housing 50, wherein the plurality of lamp strings 10, the parallel switch 20 and the series switch 40 are arranged on the upper surface of the package housing 50, and the power positive connector 31 and the power negative connector 32 are arranged on the side surface of the package housing 50. The lamp has regular overall shape, simple structure and low processing and manufacturing cost.

As a modification, when the number of parallel switches 20 is plural, the plural parallel switches 20 are disposed between the anode ends of the two strings 10, or the plural parallel switches 20 are disposed between the cathode ends of the two strings 10, and the plural parallel switches 20 are disposed along the same column. The plurality of parallel switches 20 are arranged in a row in a concentrated manner, so that the arrangement is kept regular, and the operation of the plurality of parallel switches 20 is facilitated.

The parallel switch 20 and the series switch 40 are ship-shaped switches, so that the on-off of the switches can be intuitively judged, the on-off setting errors of the switches are avoided, the series switches 40 are in an off state when being pulled to a first direction, are in an on state when being pulled to a second direction, the parallel switches 20 are in an off state when being pulled to a third direction, and are in an on state when being pulled to a fourth direction.

If the specifications of each lamp bead 101 are consistent, any lamp bead 101 is connected to the single lamp string 10, the rated voltage of the test lamp is increased by the same value, and in the same way, the rated current of each lamp string 10 is the same, and any lamp string 10 is connected to the same value, so that the same rated current is increased. The standard of the lamp beads 101 is not needed to be considered when the rated current or the rated voltage of the lamp for testing is regulated, and only the number of the connected lamp strings 10 or the number of the connected lamp beads 101 is controlled, so that the use difficulty of the lamp is reduced.

Preferably, each bead 101 has a gauge of 12V and 500mA, which fits exactly the 16 types of LED driver boards shown in fig. 1.

The more detailed circuit principle is explained as follows:

fig. 4 is a schematic circuit diagram of all of the series switches 40 and the parallel switches 20 when they are all turned off, and the lamp is in an initial state for testing, and the lamp is open.

Fig. 5 to 7 respectively provide specific embodiments of adjusting the test lamp to a certain rated parameter.

In fig. 5, the third parallel switch 23 is turned off to turn on the fourth row of lamp strings 14 alone, and then any three series switches 40 in the fourth row of lamp strings 14 are turned on to short out the corresponding three beads 101, and only one of the beads 101 is turned on with the driving board, at this time, the rated voltage of the lamp is 12V, and the rated current is 500mA.

In fig. 6, the third parallel switch 23 is turned on, the second parallel switch 22 is turned off, the third row light string 13 is turned on with the fourth row light string 14, then any three series switches 40 in the third row light string 13 are turned on, any three series switches 40 in the fourth row light string 14 are turned on, the corresponding six lamp beads 101 are shorted out, and the remaining two lamp beads 101 can be connected in parallel to the driving circuit of the driving board, at this time, the rated voltage of the lamp is 12V, and the rated current is 2 x 500mA, namely 1000mA.

In fig. 7, three parallel switches 20 are all turned on, sixteen series switches 40 are all turned off, so that four light strings 10 are all connected in parallel to the driving circuit of the driving board, and four light beads 101 in each light string 10 are all connected in series, at this time, the rated voltage of the lamp is 4×12v, that is, 48V, and the rated current is 4×500ma, that is, 2000mA.

The foregoing has outlined the basic principles, main features and advantages of the present application. It will be appreciated by persons skilled in the art that the present application is not limited to the embodiments described above, and that the embodiments and descriptions described herein are merely illustrative of the principles of the present application, and that various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined by the appended claims. The scope of protection of the present application is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a lamps and lanterns for LED drive plate test which characterized in that: the LED lamp comprises a plurality of lamp strings which are arranged in parallel, wherein the ends of two adjacent lamp strings are electrically connected through a parallel switch, each lamp string is provided with a plurality of lamp beads which are arranged in series, the positive pole and the negative pole of each lamp bead are electrically connected through a series switch, and the two ends of one lamp string are electrically connected with the positive pole and the negative pole of a driving plate.

2. The LED driver board test fixture of claim 1, wherein: the lamp strings are arranged row by row, each lamp string is provided with lamp beads with the same quantity, and the lamp beads are arranged row by row.

3. The LED driver board test fixture of claim 2, wherein: the plurality of light strings are four in number, and each light string comprises four light beads.

4. A light fixture for testing an LED driver board as recited in claim 3, wherein: the end part of the first row of light strings is electrically connected with the end part of the second row of light strings through a first parallel switch, the end part of the second row of light strings is electrically connected with the end part of the third row of light strings through a second parallel switch, the end part of the third row of light strings is electrically connected with the end part of the fourth row of light strings through a third parallel switch, and a positive power connector and a negative power connector are led out from the two ends of the fourth row of light strings so as to be electrically connected with the positive electrode and the negative electrode of the driving plate.

5. The LED driver board test fixture of claim 4, wherein: each lamp string is provided with four series switches corresponding to the lamp beads one by one, and each series switch is arranged opposite to the corresponding lamp bead.

6. The LED driver board test fixture of claim 4, wherein: the LED lamp further comprises an encapsulation shell, wherein the plurality of lamp strings, the parallel switch and the series switch are arranged on the upper surface of the encapsulation shell, and the power positive connector and the power negative connector are arranged on the side surface of the encapsulation shell.

7. The LED driver board test fixture of claim 2, wherein: when the parallel switches are arranged in a plurality, the parallel switches are arranged between the anode ends of the two light strings, or the parallel switches are arranged between the cathode ends of the two light strings, and the parallel switches are arranged along the same column.

8. The LED driver board test fixture of any one of claims 1-7, wherein: the specification of the plurality of lamp beads is consistent.

9. The LED driver board test fixture of claim 8, wherein: the specification of each lamp bead is 12V and 500mA.

10. The LED driver board test fixture of any one of claims 1-7, wherein: the parallel switch and the series switch are boat-shaped switches, the series switches are in an off state when being pulled to a first direction, are in an on state when being pulled to a second direction, are in an off state when being pulled to a third direction, and are in an on state when being pulled to a fourth direction.