LED test fixture and LED test device

Abstract

The utility model provides an LED test fixture and an LED test device, which include a base and a clamping assembly arranged on the base, wherein a test slot is arranged in the clamping area of ​​the clamping assembly, and pin contact holes corresponding to the pins of the LED to be tested are arranged in the test slot, and the clamping assembly includes a movable part elastically pre-tightened to the test slot and slidably arranged on one side of the test slot; the movable part is transmission-connected to an unlocking button arranged on the base through a transmission mechanism, so that when the unlocking button is pressed, the movable part can slide in a direction away from the test slot, thereby releasing the clamping and fixing of the LED to be tested in the test slot. The LED test fixture and LED test device provided by the utility model can facilitate the operation of taking and placing the LED to be tested, thereby improving the convenience of plugging the LED to be tested and improving the test efficiency, and the LED to be tested is arranged in the test slot, which can also reduce the interference of external collisions on the reliability of fixing the LED to be tested, and further improve the test reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic testing, in particular to an LED testing fixture and an LED testing device. Background Art

[0002] Compared with traditional light sources, LED (light-emitting diode) light sources are energy-saving, environmentally friendly, have good color rendering and response speed, and are small in size. They are often used in display backlight sources, landscape lighting, and illumination sources.

[0003] Among them, multi-primary color LEDs can directly provide multiple color outputs without the need for filters, which can effectively reduce the number of layer structures of the display and improve the display performance; or the application of multi-primary color LEDs in lighting fixtures can improve their dimming and color adjustment performance, making the lamps more intelligent.

[0004] However, compared with white light LED chips, the testing of multi-primary color LED chips requires separate testing and mixed testing of each primary color LED therein. In the prior art, the multi-primary color LED chip is generally pressed into a test board for testing, and then pulled out after the test is completed. The multi-primary color LED chip has many pins, and the chip pins are easily damaged during plugging and unplugging. When the chip pin packaging accuracy is insufficient, the chip is difficult to smoothly insert into the test board, and the overall test efficiency is low. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide an LED test fixture and an LED test device to solve the problem of low efficiency in multi-primary color LED testing in the prior art.

[0006] The utility model provides an LED test fixture on one hand, which comprises: a base and a clamping assembly arranged on the base, wherein:

[0007] The clamping area of ​​the clamping assembly is provided with a test slot, the test slot is provided with pin contact holes corresponding to the pins of the LED to be tested, and the clamping assembly includes a movable part elastically pre-tightened to the test slot and slidably arranged on one side of the test slot;

[0008] The movable member is transmission-connected to an unlocking button disposed on the base through a transmission mechanism, so that when the unlocking button is pressed, the movable member can slide in a direction away from the test slot.

[0009] Optionally, the clamping assembly further comprises a test block, the test slot is arranged on the test block, the test block further comprises a movable slot, the movable member is arranged in the movable slot, a through hole is further arranged on a side of the movable slot away from the test slot, a sliding rod is arranged in the through hole, and the movable member and the sliding rod are nested and slidably arranged;

[0010] The upper surface of the base is also provided with a test block installation groove, the size of which is consistent with the size of the test block, and the depth of which is at least greater than the setting height of the slide bar.

[0011] Optionally, the width of the test slot is consistent with the width of the LED to be tested, the length of the test slot is smaller than the length of the LED to be tested, the movable part is arranged in the length direction of the test slot, and the movable part also extends a protrusion toward one side of the test slot, and the width of the protrusion is smaller than or equal to the width of the test slot.

[0012] Optionally, the clamping assembly also includes a positioning piece, and the test block also includes a positioning slot, the positioning slot and the movable slot are respectively arranged on two opposite sides of the test slot, and the positioning piece, the test block and the base are provided with matching positioning holes, and the positioning piece and the test block are screwed and fixed to the base through the positioning holes.

[0013] Optionally, the side surfaces of the movable member and the positioning member contacting the LED to be tested are front inclined surfaces.

[0014] Optionally, the transmission mechanism includes a transmission rod, a shaft hole is provided in the middle of the transmission rod, and the transmission rod is rotatably connected to the base via a second shaft rod passing through the shaft hole, and both ends of the transmission rod are respectively transmission-connected to the unlocking button and the movable part.

[0015] Optionally, the outer side wall of the base is provided with a groove, and the unlocking button is arranged at the position of the groove.

[0016] Optionally, a limiting hole is provided in the unlocking button, and the unlocking button is movably connected to the base via a first shaft rod passing through the limiting hole.

[0017] Optionally, a button limiter is further provided in the base, and the button limiter is arranged in the pressing direction of the unlocking button.

[0018] The utility model also provides an LED testing device, which comprises the above-mentioned LED testing fixture and a testing driver, wherein:

[0019] A test plug mounting seat is also fixedly arranged below the base, and a connector is arranged between the test plug mounting seat and the pin contact hole, one end of the connector is connected to the pin contact hole in a one-to-one correspondence, and the other end is provided with a plug connector;

[0020] The test driver comprises a plurality of drive ports having the same number as the pins of the LED to be tested, and each of the drive ports is connected to a test plug so as to be connected to the plug-in connector of the LED test fixture through the test plug.

[0021] The LED test fixture provided by the utility model comprises a base and a clamping assembly arranged on the base, wherein a test slot is arranged in a clamping area of ​​the clamping assembly, and pin contact holes corresponding to the pins of the LED to be tested are arranged in the test slot, and the clamping assembly comprises a movable part elastically pre-tightened to the test slot and slidably arranged on one side of the test slot; the movable part is transmission-connected to an unlocking button arranged on the base through a transmission mechanism, so that when the unlocking button is pressed, the movable part can slide in a direction away from the test slot, thereby releasing the clamping and fixing of the LED to be tested in the test slot, which can facilitate the taking and placing operations of the LED to be tested. The LED to be tested is clamped and fixed by the clamping assembly, which can release the fixing function requirement of the pin contact hole on the pin of the LED to be tested, thereby improving the convenience of plugging in the LED to be tested and improving the test efficiency. The LED to be tested is arranged in the test slot, which can also reduce the interference of external collision on the fixation reliability of the LED to be tested, thereby further improving the test reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the external structure of the LED test fixture in the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the LED test fixture in the utility model;

[0024] Figure 3 This is a schematic diagram of the top view of the LED test fixture in the utility model;

[0025] Figure 4 It is a schematic diagram of the transmission mechanism structure of the LED test fixture in the present utility model.

[0026] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] In order to solve the problem of low efficiency in testing multi-primary color LEDs in the prior art, the utility model provides an LED testing fixture, which can remove the fixing function requirement of the pin release hole on the LED pin to be tested by clamping and fixing the LED to be tested, thereby reducing the plugging and unplugging resistance of the LED to be tested, improving the plugging and unplugging convenience in testing the LED to be tested, and improving the testing efficiency. The clamping and fixing can conveniently fix and release the LED to be tested, thereby ensuring the plugging and unplugging convenience in testing the LED to be tested.

[0031] Specifically, Figure 1 and Figure 2 As shown, the LED test fixture of this embodiment includes a base 100 and a clamping assembly arranged on the base 100, wherein a test slot is arranged in the clamping area of ​​the clamping assembly, and pin contact holes corresponding to the pins of the LED01 to be tested are arranged in the test slot, and the clamping assembly includes a movable part 220 elastically pre-tightened to the test slot and slidably arranged on one side of the test slot; the movable part 220 is transmission-connected to an unlocking button 510 arranged on the base 100 through a transmission mechanism, so that when the unlocking button 510 is pressed, the movable part 220 can slide in a direction away from the test slot, thereby releasing the limit on the test slot area to facilitate the insertion and removal of the LED01 to be tested.

[0032] In this embodiment, the LED01 to be tested is an RGBW four-primary color LED chip, corresponding to eight pins. In an optional embodiment, it can also be applicable to an RGB three-primary color LED chip, and the corresponding chip has six pins. Correspondingly, the number and layout of the pin contact holes can be flexibly selected according to the specific LED chip type.

[0033] In this embodiment, in order to reduce the need for screw connection, the clamping assembly further includes a test block 200, a test slot is arranged on the test block 200, and the test block 200 further includes a movable slot, in which a movable member 220 is arranged, and a through hole is also arranged on the side of the movable slot away from the test slot, in which a slide bar 230 is arranged, and the movable member 220 and the slide bar 230 are nested and slidably arranged; a test block mounting slot is also arranged on the upper surface of the base 100, and the size of the test block mounting slot is consistent with the size of the test block 200, and the depth of the test block mounting slot is at least greater than the setting height of the slide bar 230, so that after the slide bar 230 is assembled, as the test block is placed in the test block mounting slot, the slide bar 230 can be fixed by the side wall limit of the test block mounting slot. Among them, at least two slide bars 230 are arranged to prevent the movable member 220 from flipping over and affecting the fixing reliability, or the slide bar 230 is arranged to be polygonal, and the hole structure contacting it is corresponding and complementary, so that its rotation relative to the test block 200 and the movable member 220 can be limited.

[0034] To ensure the reliability of the fixed LED01 to be tested, please refer to Figure 3 In this embodiment, the width of the test slot is consistent with the width of the LED01 to be tested, and the length of the test slot is less than the length of the LED01 to be tested. The movable member 220 is arranged in the length direction of the test slot. The movable member 220 also extends a protrusion 221 on one side of the test slot. The width of the protrusion 221 is less than or equal to the width of the test slot, so that it can extend into the test slot and effectively abut against the LED01 to be tested, thereby ensuring the reliability of fixation.

[0035] The elastic pre-tightening force of the movable part 220 can be achieved by sleeve-arranging a spring on the slide rod 230 , and the pre-tightening requirement of the movable part 220 is achieved by the elastic tension of the spring.

[0036] In order to improve the compatibility with LED chips of different packaging specifications, in this embodiment, the clamping assembly further includes a positioning member 210, and the test block 200 further includes a positioning groove. The positioning groove and the movable groove are respectively arranged on opposite sides of the test groove. The positioning member 210, the test block 200 and the base 100 are provided with positioning holes for alignment and matching. The positioning member 210 and the test block 200 are screwed and fixed to the base 100 through the positioning holes and the screws 201. When the packaging specifications of the LED chips to be tested are different, positioning members 210 of different sizes can be replaced to match them. For example, if the package length of the LED to be tested is different, after the pins are aligned with the pin contact holes, the extension length of the end close to the positioning member 210 in the length direction is different, then positioning members 210 of different lengths can be selected to match them, thereby ensuring the reliability of positioning and maintaining the effectiveness of the test.

[0037] Furthermore, the side surfaces of the movable part 220 and the positioning part 210 that contact the LED01 to be tested are front inclined surfaces, and the top surface height is higher than the top surface height of the LED to be tested. During clamping and fixing, the LED01 to be tested can be pressed and fixed on the test block 200 through the front inclined surface, thereby improving the fixing effect.

[0038] As a specific example, please refer to Figure 4 In this embodiment, the transmission mechanism includes a transmission rod 520, a shaft hole is provided in the middle of the transmission rod 520, and the transmission rod 520 is rotatably connected to the base 100 through a second shaft rod 502 passing through the shaft hole. The two ends of the transmission rod 520 are respectively connected to the unlocking button 510 and the movable part 220.

[0039] In this embodiment, the transmission connection between the two ends of the transmission rod 520 and the unlocking button 510 and the movable part 220 is a contact-type docking, and a slot is set at the bottom of the movable part 220. One end of the transmission rod 520 extends into the slot. With the rotation of the transmission rod 520, the movable part 220 can be driven to slide along the slide bar 230. When the unlocking button 510 is pressed, the other end of the transmission rod 520 is contact-type pushed to achieve rotation. In an optional embodiment, a torsion spring can also be set at the transmission rod 520, and the elastic pre-tightening requirement of the movable part 220 is achieved through the transmission rod 520 and the torsion spring.

[0040] Among them, the size of the groove set at the bottom of the movable part 220 is larger than the end size of the transmission rod 520, so that in the clamped fixed state, there is a certain distance between the transmission rod 520 and the movable part 220, reducing the risk of the unlocking button 510 being accidentally touched and releasing the clamped fixed state, thereby improving the test reliability.

[0041] To further reduce the risk of accidental touch, in the present embodiment, a groove is provided on the outer wall of the base 100, and the unlock button 510 is arranged at the position of the groove, thereby reducing the size of the unlock button 510 protruding from the maximum outer edge of the base 100 and reducing the risk of accidental touch.

[0042] In order to prevent the unlocking button 510 from being over-pressed, in the present embodiment, a limiting hole 511 is provided in the unlocking button 510 , and the unlocking button 510 is movably connected to the base 100 via a first shaft 501 passing through the limiting hole 511 .

[0043] To facilitate the installation of the first shaft 501 and the second shaft 502, in this embodiment, the base 100 is provided with a first socket 101 and a second socket 102, and the first shaft 501 and the second shaft 502 are respectively inserted into the first socket 101 and the second socket 102, and can be fixed by screwing or interference assembly.

[0044] When the unlock button 510 is pressed and the transmission rod 520 is rotated, the transmission rod 520 may be at risk of breaking due to the limit position of the movable part 220. To avoid the risk of breakage, in this embodiment, a button limiter 530 is further provided in the base 100. The button limiter 530 is provided in the pressing direction of the unlock button 510 and is fixed by a latch 531.

[0045] In order to facilitate the electrical connection between the test driver and the LED 01 to be tested, in the present embodiment, a test plug mounting seat 400 is fixedly provided under the base 100, and a connector 300 is provided between the test plug mounting seat 400 and the pin contact hole, one end of the connector 300 is connected to the pin contact hole one by one, and a plug-in connector is provided at the other end, and the plug-in connector is matched with the test plug.

[0046] The test plug is connected to the test driver, and each driving port of the test driver can be electrically connected to the corresponding pin of the LED to be tested, so that when the test driver outputs driving signals of various specifications, each primary color LED of the multi-primary color LED can be driven to emit light individually or in a mixed manner to perform a performance test. Among them, the number of driving ports of the test driver is consistent with the number of pins of the LED to be tested.

[0047] In order to facilitate the installation of the transmission mechanism, a clamping groove is provided in the guide member 300, and the width of the clamping groove is consistent with the thickness of the transmission rod 520, so as to limit the rotational activity surface of the transmission rod 520 and can be used for the installation guide of the transmission rod 520. The guide member 300 is also provided with a latch hole 301, and the latch 531 is arranged in the latch hole 301, so that the button limiter 530 can be pre-installed and fixed to the guide member 300, and after it is assembled into the base 100 with the guide member 300, the latch 301 can be limited by the side wall of the base 100, reducing the complexity of the fixing design of the button limiter 530.

[0048] In order to ensure the positioning effect of the guide member 300, in this embodiment, a vertical positioning rod 401 is further provided, which passes through the guide member 300 and is positioned on the middle support plate of the base 100, and the middle support plate is located between the guide member 300 and the test plate 200. Two vertical positioning rods 401 are provided, which can also be used as installation guides for the guide member 300, and the vertical positioning rods 401 can be screwed and fixed to the guide member 300 and the middle support plate of the base 100.

[0049] The utility model also provides an LED testing device, which includes the above-mentioned LED test fixture and a test driver, wherein a test plug mounting seat is fixedly arranged below the base, a connector is arranged between the test plug mounting seat and the pin contact hole, one end of the connector is connected to the pin contact hole in a one-to-one correspondence, and the other end is provided with a plug-in connector; the test driver includes a plurality of drive ports consistent with the number of pins of the LED to be tested, and each drive port is connected to the test plug to be connected to the plug-in connector of the LED test fixture through the test plug.

[0050] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0051] The above-mentioned embodiments only express several specific implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An LED test fixture, characterized in that: include: A base and a clamping assembly arranged on the base, wherein: The clamping area of ​​the clamping assembly is provided with a test slot, the test slot is provided with pin contact holes corresponding to the pins of the LED to be tested, and the clamping assembly includes a movable part elastically pre-tightened to the test slot and slidably arranged on one side of the test slot; The movable member is transmission-connected to an unlocking button disposed on the base through a transmission mechanism, so that when the unlocking button is pressed, the movable member can slide in a direction away from the test slot.

2. The LED test fixture according to claim 1, characterized in that: The clamping assembly further comprises a test block, the test slot is arranged on the test block, the test block further comprises a movable slot, the movable member is arranged in the movable slot, a through hole is further arranged on a side of the movable slot away from the test slot, a sliding rod is arranged in the through hole, and the movable member and the sliding rod are nested and slidably arranged; The upper surface of the base is also provided with a test block installation groove, the size of which is consistent with the size of the test block, and the depth of which is at least greater than the setting height of the slide bar.

3. The LED test fixture according to claim 2, characterized in that: The width of the test slot is consistent with the width of the LED to be tested, the length of the test slot is smaller than the length of the LED to be tested, the movable part is arranged in the length direction of the test slot, and the movable part also extends a protrusion toward one side of the test slot, and the width of the protrusion is smaller than or equal to the width of the test slot.

4. The LED test fixture according to claim 2, characterized in that: The clamping assembly also includes a positioning piece, and the test block also includes a positioning slot. The positioning slot and the movable slot are respectively arranged on two opposite sides of the test slot. The positioning piece, the test block and the base are provided with matching positioning holes, and the positioning piece and the test block are screwed and fixed to the base through the positioning holes.

5. The LED test fixture according to claim 4, characterized in that: The side surfaces of the movable member and the positioning member contacting the LED to be tested are front inclined surfaces.

6. The LED test fixture according to claim 1, characterized in that: The transmission mechanism comprises a transmission rod, a shaft hole is arranged in the middle of the transmission rod, and the transmission rod is rotatably connected with the base through a second shaft rod passing through the shaft hole, and the two ends of the transmission rod are respectively transmission-connected with the unlocking button and the movable part.

7. The LED test fixture according to claim 6, characterized in that: The outer side wall of the base is provided with a groove, and the unlocking button is arranged at the position of the groove.

8. The LED test fixture according to claim 6, characterized in that: A limiting hole is arranged in the unlocking button, and the unlocking button is movably connected to the base via a first shaft rod passing through the limiting hole.

9. The LED test fixture according to claim 6, characterized in that: A button limiter is also provided in the base, and the button limiter is provided in the pressing direction of the unlocking button.

10. An LED testing device, characterized in that: The LED test fixture comprises the LED test fixture according to any one of claims 1 to 9, and a test driver, wherein: A test plug mounting seat is also fixedly arranged below the base, and a connector is arranged between the test plug mounting seat and the pin contact hole, one end of the connector is connected to the pin contact hole in a one-to-one correspondence, and the other end is provided with a plug connector; The test driver comprises a plurality of drive ports having the same number as the pins of the LED to be tested, and each of the drive ports is connected to a test plug so as to be connected to the plug-in connector of the LED test fixture through the test plug.

Images