CN220154490U

CN220154490U - Clamp for LED lamp bead aging test

Info

Publication number: CN220154490U
Application number: CN202321550812.4U
Authority: CN
Inventors: 汪尾球
Original assignee: Ningbo Fulang Electric Appliance Co ltd
Current assignee: Ningbo Fulang Electric Appliance Co ltd
Priority date: 2023-06-16
Filing date: 2023-06-16
Publication date: 2023-12-08
Anticipated expiration: 2033-06-16

Abstract

The utility model discloses a fixture for LED lamp bead aging test, which comprises a bearing table, wherein the upper end of the bearing table is provided with a clamping groove, an aluminum substrate, an upper cover and two ejector pins, the aluminum substrate is arranged in the clamping groove, the upper end surface of the aluminum substrate is provided with an LED lamp bead, the lower end surface of the upper cover is provided with a first opening, a cover plate matched with the first opening and two conducting strips, the cover plate is provided with a second opening matched with the LED lamp bead, the two conducting strips are in one-to-one correspondence with the two ejector pins, the upper cover is covered at the upper end of the bearing table and pressed on the edge of the aluminum substrate, the cover plate is inserted into the first opening, the LED lamp bead extends into the second opening, one end of one ejector pin is electrically connected with the positive electrode connecting end of the aluminum substrate through the corresponding conducting strip, one end of the other ejector pin is electrically connected with the negative electrode connecting end of the aluminum substrate through the corresponding conducting strip, and the other ends of the two ejector pins are used for being electrically connected with an external power supply; the LED lamp bead aging data processing method has the advantage that accuracy of the LED lamp bead aging data is improved.

Description

Clamp for LED lamp bead aging test

Technical Field

The utility model belongs to the technical field of LED detection equipment, and particularly relates to a fixture for LED lamp bead aging test.

Background

The aging test of the LED lamp beads comprises the steps of firstly welding a plurality of LED lamp beads and a connector onto a strip-shaped PCB to obtain an LED lamp strip, then placing the LED lamp strip into a constant temperature and humidity box or other test environments, and finally connecting the LED lamp strip with an external power supply through the connector to enable the LED lamp strip to be electrified and lightened. After the aging test is finished, the LED lamp beads are disassembled from the PCB through a hot air gun or a heating plate for testing, but no matter the hot air gun or the heating plate is adopted, certain high-temperature damage can be generated on the LED lamp beads, so that the final aging test data is not accurate enough.

Therefore, for example, in the Chinese patent application publication No. CN216285381U, a test fixture for testing the aging of LED lamp beads is provided, which comprises a fixture body, probes, an aluminum substrate bearing platform and springs, wherein the aluminum substrate bearing platform is arranged in the middle of the surface of the fixture body, the probes are further arranged on the fixture body and are positioned on two sides of the aluminum substrate bearing platform, and the probes are fixedly connected with the aluminum substrate bearing platform for placing the aluminum substrate through the springs. According to the technical scheme, the LED lamp beads on the aluminum substrate can be directly electrified for aging test, optical data of a single LED are detected, the LED lamp beads are not required to be disassembled through a hot air gun or a heating plate, and the accuracy of a test result is improved to a certain extent. However, when the aluminum substrate welded with the LED lamp beads is carried on the test fixture and placed in the integrating sphere to detect the spectrum, since the aluminum substrate is generally white and the probe is white or yellow, part of the light emitted by the LED lamp beads may be reflected by the aluminum substrate and the probe and then received by the photodetector, which results in inaccurate LED spectrum, and there is room for improvement.

Disclosure of Invention

The utility model aims to solve the technical problem of providing the fixture for the LED lamp bead aging test, which is beneficial to improving the accuracy of the LED lamp bead aging data.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a fixture for LED lamp pearl aging test, includes the plummer, the upper end of plummer is provided with draw-in groove, aluminium base board, upper cover and two thimble, aluminium base board is put in the draw-in groove, the welding has the LED lamp pearl on the up end of aluminium base board, be provided with first opening on the lower terminal surface of upper cover, with first opening assorted apron and two conducting strips, be provided with on the apron with LED lamp pearl assorted second opening, two conducting strips with two thimble one-to-one, the upper cover lid is in the upper end of plummer and presses on the edge of aluminium base board, the apron inserts in the first opening, the LED lamp pearl stretches into in the second opening, one the one end of thimble through corresponding the conducting strip with the anodal link electricity of aluminium base board is connected, another the one end of thimble is through corresponding the conducting strip with the negative pole link electricity of aluminium base board is connected, two other ends are used for external power connection with two thimble.

Preferably, the edge of the upper cover protrudes downwards to form a sleeve, the sleeve is sleeved on the side face of the bearing table, a through hole and a bolt are arranged on the sleeve, a jack is arranged on the side face of the bearing table, and one end of the bolt penetrates through the through hole and is inserted into the jack.

Preferably, a black handle is sleeved at the other end of the bolt, and the black handle is abutted with the outer side surface of the sleeve.

Preferably, a distance between an inner sidewall of the first opening and an edge of the aluminum substrate is not more than 3mm.

Preferably, the lower end face of the upper cover is provided with two first strip-shaped grooves, one end of each first strip-shaped groove is communicated with the side face of the corresponding first opening, the two first strip-shaped grooves are in one-to-one correspondence with the two conducting strips, the lower end face of the cover plate is provided with two second strip-shaped grooves, the two second strip-shaped grooves are in one-to-one correspondence with the two first strip-shaped grooves, one end of each second strip-shaped groove is communicated with one end of each first strip-shaped groove, the conducting strips are clamped in the corresponding first strip-shaped grooves, and one end of each conducting strip extends into the corresponding second strip-shaped groove.

Preferably, the upper end of the bearing table is provided with two step holes, the two step holes correspond to the two ejector pins one by one, the side surface of the ejector pin is provided with a positioning ring and a compression spring, the positioning ring is in up-down sliding fit with the step holes, the compression spring is arranged between the positioning ring and the step surface of the step holes, the upper end of the ejector pin extends out of the step holes, and the other end of the ejector pin is electrically connected with an external power supply through an electric wire.

Preferably, the lower end surface of the bearing table is recessed upwards to form a containing groove and at least one notch, the lower end of the step hole is communicated with the bottom of the containing groove, one side of the notch is communicated with the side surface of the containing groove, and the other side of the notch is communicated with the outer side surface of the bearing table.

Compared with the prior art, the utility model has the advantages that:

1. the aluminum substrate is in an exposed state when the cover plate is not matched, at the moment, the clamp for testing can be used for aging test of the LED lamp beads, the aluminum substrate and the conducting strip are shielded when the cover plate is matched, and the effect on the LED lamp pearls detected after light rays on the aluminum substrate and the probes are reflected can be eliminated, so that the accuracy of the aging data of the LED lamp beads can be improved;

2. after the fixture for testing is matched with the LED lamp beads for aging test, the fixture can be directly used for LED lamp pearling spectrum detection, the LED lamp beads are not required to be disassembled through a hot air gun or a heating plate, the LED lamp beads are prevented from being damaged by additional high temperature, and the accuracy of LED lamp bead aging data is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model for burn-in testing;

FIG. 2 is a schematic diagram of the structure of the present utility model when used for spectral detection;

FIG. 3 is a schematic diagram of an explosive structure according to the present utility model;

FIG. 4 is a schematic view of a partial cross-sectional structure of the present utility model;

FIG. 5 is a schematic view of the structure of the upper cover of the present utility model;

fig. 6 is a schematic cross-sectional view of a stage according to the present utility model.

In the figure: 1. a carrying platform; 11. a clamping groove; 12. a jack; 13. a step hole; 14. a receiving groove; 15. a notch; 2. an aluminum substrate; 21. a circuit; 3. an upper cover; 31. a first opening; 32. a cover plate; 321. a second opening; 322. a second bar-shaped groove; 33. a conductive sheet; 34. a sleeve; 341. perforating; 342. a plug pin; 343. a black handle; 35. a first bar-shaped groove; 4. a thimble; 41. a positioning ring; 5. LED lamp beads; 6. compressing the spring.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Embodiment one: as shown in fig. 1 to 4, a fixture for aging test of LED lamp beads comprises a bearing table 1, a clamping groove 11, an aluminum substrate 2, an upper cover 3 and two ejector pins 4 are arranged at the upper end of the bearing table 1, the aluminum substrate 2 is placed in the clamping groove 11, the LED lamp beads 5 to be tested are welded on the upper end face of the aluminum substrate 2, a first opening 31, a cover plate 32 matched with the first opening 31 and two conductive sheets 33 are arranged on the lower end face of the upper cover 3, a second opening 321 matched with the LED lamp beads 5 is arranged on the cover plate 32, the two conductive sheets 33 are in one-to-one correspondence with the two ejector pins 4, the upper cover 3 covers the upper end of the bearing table 1 and presses the edge of the aluminum substrate 2, the cover plate 32 is inserted into the first opening 31, the LED lamp beads 5 extend into the second opening 321, one end of one ejector pin 4 is electrically connected with a positive electrode connecting end of the aluminum substrate 2 through the corresponding conductive sheet 33, one end of the other ejector pin 4 is electrically connected with a negative electrode connecting end of the aluminum substrate 2 through the corresponding conductive sheet 33, and the other end 4 is electrically connected with the other end 4 of the ejector pins 4 (which are not externally connected with a power supply (not shown in the figure).

When the aging test is carried out, the aluminum substrate 2 welded with the LED lamp beads 5 is placed in the clamping groove 11, then the upper cover 3 is covered at the upper end of the bearing table 1 and is pressed on the edge of the aluminum substrate 2, one end of one thimble 4 is electrically connected with the positive electrode connecting end of the aluminum substrate 2 through the corresponding conducting strip 33, one end of the other thimble 4 is electrically connected with the negative electrode connecting end of the aluminum substrate 2 through the corresponding conducting strip 33, then the test fixture is placed in a constant temperature and humidity box or other test environments, the LED lamp beads 5 are lighted after being electrified, and the aluminum substrate 2 is used as a heat dissipation module, so that the aging test requirement is met.

When the LED spectrum is detected, the clamp for testing which is subjected to the aging test is taken out, then the cover plate 32 is inserted into the first opening 31, the LED lamp beads 5 extend into the second opening 321, the aluminum substrate 2 and the conducting strip 33 are shielded at the moment, and then the clamp for testing is placed into the integrating sphere for detection, so that the influence of the aluminum substrate 2 and the conducting strip 33 on the spectrum detection is avoided.

In this embodiment, the carrying platform 1, the upper cover 3 and the cover plate 32 are all made of black plastic materials.

The aluminum substrate 2 is provided with two circuits 21, two ends of one circuit 21 are respectively electrically connected with the anode of the LED lamp bead 5 and one end of one conductive sheet 33, and two ends of the other circuit 21 are respectively electrically connected with the cathode of the LED lamp bead 5 and one end of the other conductive sheet 33.

Embodiment two: as shown in fig. 3, the rest is the same as the first embodiment, except that the edge of the upper cover 3 protrudes downwards to form a sleeve 34, the sleeve 34 is sleeved on the side surface of the bearing table 1, a through hole 341 and a plug pin 342 are arranged on the sleeve 34, a jack 12 is arranged on the side surface of the bearing table 1, one end of the plug pin 342 passes through the through hole 341 and is inserted into the jack 12, and the upper cover 3 and the bearing table 1 can be fixed, so that the structure is simple and the operation is convenient.

In this embodiment, the other end of the plug 342 is sleeved with a black handle 343, and the black handle 343 is abutted against the outer side surface of the sleeve 34, so as to avoid the exposure of the plug 342 to affect the spectrum detection.

Embodiment III: as shown in fig. 1, 5 and 6, the rest is the same as the first embodiment except that the space between the inner sidewall of the first opening 31 and the edge of the aluminum substrate 2 is not more than 3mm.

In this embodiment, the lower end surface of the upper cover 3 is provided with two first grooves 35, one end of the first grooves 35 is communicated with the side surface of the first opening 31, the two first grooves 35 are in one-to-one correspondence with the two conductive sheets 33, the lower end surface of the cover plate 32 is provided with two second grooves 322, the two second grooves 322 are in one-to-one correspondence with the two first grooves 35, one end of the second grooves 322 is communicated with one end of the corresponding first groove 35, the conductive sheets 33 are clamped in the corresponding first grooves 35, and one end of the conductive sheets 33 extends into the second grooves 322.

In this embodiment, two step holes 13 are provided at the upper end of the carrying platform 1, the two step holes 13 are in one-to-one correspondence with the two ejector pins 4, a positioning ring 41 and a compression spring 6 are provided on the side surface of the ejector pins 4, the positioning ring 41 is in up-down sliding fit with the step holes 13, the compression spring 6 is provided between the positioning ring 41 and the step surface of the step holes 13, the upper end of the ejector pin 4 extends out of the step holes 13, the other end of the ejector pin 4 is electrically connected with an external power supply through an electric wire, when the upper cover 3 covers the upper end of the carrying platform 1 and presses the edge of the aluminum substrate 2, the ejector pin 4 contacts with the conductive sheet 33 and moves downwards, and the compression spring 6 is compressed.

In this embodiment, the lower end surface of the bearing table 1 is recessed upwards to form a containing groove 14 and at least one notch 15, the lower end of the step hole 13 is communicated with the bottom of the containing groove 14, one side of the notch 15 is communicated with the side surface of the containing groove 14, the other side of the notch 15 is communicated with the outer side surface of the bearing table 1, and by arranging the containing groove 14 and the notch 15, the electric wire is conveniently stretched into the step hole 13 to be connected with the other end of the thimble 4. Wherein, the notches 15 are arranged in two and are distributed symmetrically left and right.

The utility model has been described above by way of example with reference to the accompanying drawings, it is clear that the implementation of the utility model is not limited to the above-described manner, but it is within the scope of the utility model to apply the inventive concept and technical solution to other situations as long as various improvements made by the inventive concept and technical solution are adopted or without any improvement.

Claims

1. The fixture for the LED lamp bead aging test comprises a bearing table (1), and is characterized in that a clamping groove (11), an aluminum substrate (2), an upper cover (3) and two ejector pins (4) are arranged at the upper end of the bearing table (1), the aluminum substrate (2) is placed in the clamping groove (11), an LED lamp bead (5) is welded on the upper end face of the aluminum substrate (2), a first opening (31), a cover plate (32) matched with the first opening (31) and two conductive sheets (33) are arranged on the lower end face of the upper cover (3), a second opening (321) matched with the LED lamp bead (5) is arranged on the cover plate (32), the two conductive sheets (33) are in one-to-one correspondence with the two ejector pins (4), the upper cover (3) covers the upper end of the bearing table (1) and presses the edge of the aluminum substrate (2), the cover plate (32) is inserted into the first opening (31), the LED lamp (321) is electrically connected with one end of the other ejector pin (4) through the corresponding to the other ejector pin (33) through the first opening (33), the other ends of the two ejector pins (4) are electrically connected with an external power supply.

2. The fixture for testing the aging of the LED lamp beads according to claim 1, wherein the edge of the upper cover (3) protrudes downwards to form a sleeve (34), the sleeve (34) is sleeved on the side face of the bearing table (1), a through hole (341) and a plug pin (342) are arranged on the sleeve (34), a jack (12) is arranged on the side face of the bearing table (1), and one end of the plug pin (342) penetrates through the through hole (341) and is inserted into the jack (12).

3. The fixture for testing the aging of the LED lamp beads according to claim 2, wherein a black handle (343) is sleeved at the other end of the plug pin (342), and the black handle (343) is abutted against the outer side surface of the sleeve (34).

4. The fixture for LED lamp bead aging test according to claim 1, wherein the distance between the inner side wall of the first opening (31) and the edge of the aluminum substrate (2) is not more than 3mm.

5. The fixture for the aging test of the LED lamp beads according to claim 1, characterized in that two first strip-shaped grooves (35) are formed in the lower end face of the upper cover (3), one end of each first strip-shaped groove (35) is communicated with the side face of the corresponding first opening (31), two first strip-shaped grooves (35) are in one-to-one correspondence with two conducting strips (33), two second strip-shaped grooves (322) are formed in the lower end face of the cover plate (32), two second strip-shaped grooves (322) are in one-to-one correspondence with two first strip-shaped grooves (35), one end of each second strip-shaped groove (322) is communicated with one end of each first strip-shaped groove (35), one end of each conducting strip (33) is clamped in the corresponding first strip-shaped groove (35), and one end of each conducting strip (33) stretches into the second strip-shaped groove (322).

6. The fixture for LED lamp bead aging test according to claim 1, characterized in that two step holes (13) are formed in the upper end of the bearing table (1), the two step holes (13) are in one-to-one correspondence with the two ejector pins (4), positioning rings (41) and compression springs (6) are arranged on the side faces of the ejector pins (4), the positioning rings (41) are in up-down sliding fit with the step holes (13), the compression springs (6) are arranged between the positioning rings (41) and step faces of the step holes (13), the upper ends of the ejector pins (4) extend out of the step holes (13), and the other ends of the ejector pins (4) are electrically connected with an external power supply through wires.

7. The fixture for LED lamp bead aging test according to claim 6, wherein the lower end surface of the bearing table (1) is recessed upwards to form a containing groove (14) and at least one notch (15), the lower end of the step hole (13) is communicated with the groove bottom of the containing groove (14), one side of the notch (15) is communicated with the side surface of the containing groove (14), and the other side of the notch (15) is communicated with the outer side surface of the bearing table (1).