LED chip test fixture

Abstract

The utility model discloses an LED chip test clamp, and belongs to the technical field of chip clamps. Comprising a bottom plate, two sliding grooves are formed in the top of the bottom plate, clamping assemblies are arranged in the two sliding grooves and comprise lead screws, the two ends of each lead screw are in threaded connection with sliding blocks, sliding rods are arranged on the two sides of the tops of the two sliding blocks, connecting plates are arranged on the outer walls of the circumferences of the sliding rods, limiting plates are arranged at one ends of the connecting plates, and abutting assemblies are arranged at the tops of the limiting plates. An LED chip body is arranged in the middle of the top of the bottom plate. According to the utility model, the rotary knob is manually screwed to enable the worm to rotate to drive the worm gear to rotate, so that the sliding block in threaded connection with the lead screw is driven to move, the limiting plate at one end of the connecting plate clamps the LED chip, the connecting plate drives the limiting plate 308 to fix the LED chip through the resilience force of the spring, and the edge of the LED chip is fixed through the abutting assembly to improve the stability. The LED chip clamping device is compact and reasonable in structural design, convenient to adapt to LED chips of different sizes, good in clamping effect and high in stability.

Description

Technical Field

[0001] The utility model relates to the technical field of chip jigs, and more specifically, to an LED chip test jig. Background Technique

[0002] An LED chip is a solid-state semiconductor device. The heart of an LED is a semiconductor wafer. One end of the wafer is attached to a bracket, one end is the negative electrode, and the other end is connected to the positive electrode of the power supply, so that the whole wafer is encapsulated by epoxy resin. Before leaving the factory, the LED chip usually needs to be subjected to optoelectronic tests on its quality and reliability, and a test jig is required at this time.

[0003] In the prior art, the patent document with the publication number of CN217007420U provides a chip test jig. The device is rotatably connected by an upper cover and a base. A chip placement groove recessed inward is provided on the base. The protruding feet of the electrical connector are arranged through the first through hole and are rotatably connected to the upper cover. A buckle matching with the card slot is arranged on the card board rotatably connected to the upper cover. The structure is simple, the chip is convenient to install and fix, and the fixing effect is good, and the appearance of the chip will not be damaged.

[0004] Although the device has many beneficial effects, there are still the following problems: during the use of the device, it cannot adapt to LED chips of different sizes, and the clamping effect is not good enough; secondly, the fixing stability of the LED chip during the use of the device is insufficient and needs to be improved. In view of this, we propose an LED chip test jig. Content of the Utility Model

[0005] 1. Technical Problems to be Solved

[0006] The purpose of the utility model is to provide an LED chip test jig to solve the problems of the prior art that it cannot adapt to LED chips of different sizes, the clamping effect is not good enough, and the stability is insufficient as mentioned in the background technique.

[0007] 2. Technical Solution

[0008] An LED chip test jig includes a bottom plate. Two sliding grooves are opened at the top of the bottom plate. A clamping assembly is arranged inside the two sliding grooves. The clamping assembly includes a lead screw. A worm gear is arranged in the middle of the circumferential outer wall of the lead screw. The worm gear is meshed with a worm. One end of the worm is provided with a knob. Both ends of the lead screw are threadedly connected with sliders. Slide rods are arranged on both sides of the tops of the two sliders. A connecting plate is slidably connected to the circumferential outer wall of the slide rod. One end of the connecting plate is provided with a limiting plate. A pressing assembly is arranged on the top of the limiting plate. An LED chip body is arranged in the middle of the top of the bottom plate.

[0009] Preferably, springs sleeved on the circumferential outer wall of the slide rod are arranged on both sides of the slider, and a baffle is arranged at one end of the slide rod.

[0010] Preferably, the pressing component includes a screw rod threadedly connected to the top of the limiting plate. A fixing sleeve is provided on the circumferential outer wall of the screw rod. A pressing rod is provided on the circumferential outer wall of the fixing sleeve. A pressing block is provided at the bottom of the pressing rod.

[0011] Preferably, a plurality of mounting seats are provided on the side wall of the bottom plate, and screw holes are opened at the tops of the mounting seats.

[0012] Preferably, the threads at both ends of the lead screw are arranged in opposite directions. The cross-section of the limiting plate is L-shaped, and a protective pad is provided on the inner wall of the limiting plate.

[0013] Preferably, the material of the protective pad is nitrile rubber, and the material of the pressing block is vulcanized rubber.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present utility model are as follows:

[0016] By manually turning the knob in the present utility model, the worm rotates to drive the worm wheel to rotate, thereby driving the slider threadedly connected to the lead screw to move. Then, the limiting plate at one end of the connecting plate clamps the LED chip, which is convenient for adapting to LED chips of different sizes. Through the resilience of the spring, the connecting plate drives the limiting plate to fix the LED chip, improving the clamping effect.

[0017] Secondly, by manually turning the screw rod downward, the pressing rod on the fixing sleeve is driven to move downward, and then the pressing block presses down to fix the edge of the LED chip, improving the stability during the test of the LED chip. The structure of the present utility model is designed compactly and reasonably, which is convenient for adapting to LED chips of different sizes, has a good clamping effect, and high stability. Brief description of the drawings

[0018] Figure 1 is the overall structural schematic diagram of the present utility model;

[0019] Figure 2 is the partial structural schematic diagram of the present utility model;

[0020] Figure 3 is the partial structural sectional schematic diagram of the present utility model;

[0021] Figure 4 is Figure 3 the enlarged schematic diagram at A in

[0022] Figure 5 is the partial structural schematic diagram of the pressing component of the present utility model;

[0023] Description of reference numerals in the figure: 1, bottom plate; 2, chute; 3, clamping assembly; 4, pressing assembly; 5, LED chip body; 6, mounting base; 7, screw hole; 8, protective pad; 301, lead screw; 302, worm gear; 303, worm; 304, knob; 305, slider; 306, slide bar; 307, connecting plate; 308, limiting plate; 309, spring; 310, baffle; 401, screw; 402, fixed sleeve; 403, pressing rod; 404, pressing block. Specific embodiments

[0024] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0025] In the description of the present invention, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0026] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0027] Please refer to Figures 1-5 , the present invention provides a technical solution:

[0028] An LED chip test fixture includes a bottom plate 1. Two sliding grooves 2 are opened at the top of the bottom plate 1. A clamping assembly 3 is rotatably connected inside the two sliding grooves 2. The clamping assembly 3 includes a lead screw 301. A worm gear 302 is fixedly provided in the middle of the circumferential outer wall of the lead screw 301. The worm gear 302 meshes with a worm 303. A knob 304 is fixedly provided at one end of the worm 303. Both ends of the lead screw 301 are threadedly connected with sliders 305. Slide bars 306 are fixedly provided on both sides of the tops of the two sliders 305. A connecting plate 307 is slidably connected to the circumferential outer wall of the slide bars 306. A limiting plate 308 is fixedly provided at one end of the connecting plate 307. A tightening assembly 4 is threadedly connected to the top of the limiting plate 308. An LED chip body 5 is installed in the middle of the top of the bottom plate 1. In the utility model, by manually turning the knob 304 to rotate the worm 303 to drive the worm gear 302 to rotate, thereby driving the slider 305 threadedly connected to the lead screw 301 to move, and then the limiting plate 308 at one end of the connecting plate 307 clamps the LED chip, which is convenient for adapting to LED chips of different sizes.

[0029] Specifically, springs 309 sleeved on the circumferential outer wall of the slide bars 306 are fixedly provided on both sides of the slider 305. The other ends of the springs 309 are fixedly connected to the connecting plate 307. A baffle 310 is fixedly provided at one end of the slide bar 306. By manually pulling the connecting plate 307 to move away from the slider 305 to adapt the width of the limiting plate 308 to the LED chip, the return spring force of the spring 309 enables the connecting plate 307 to drive the limiting plate 308 to fix the LED chip, improving the clamping effect.

[0030] Furthermore, the tightening assembly 4 includes a screw rod 401 threadedly connected to the top of the limiting plate 308. A fixed sleeve 402 is rotatably connected to the circumferential outer wall of the screw rod 401. A tightening rod 403 is fixedly provided on the circumferential outer wall of the fixed sleeve 402. A tightening block 404 is fixedly provided at the bottom of the tightening rod 403. By manually turning the screw rod 401 to move downward, driving the tightening rod 403 on the fixed sleeve 402 to move downward, and then the tightening block 404 presses down to fix the edge of the LED chip, improving the stability during the test of the LED chip.

[0031] It should be noted that a plurality of mounting seats 6 are fixedly provided on the side wall of the bottom plate 1. A screw hole 7 is opened at the top of the mounting seat 6. The mounting seat 6 is fixed by passing a bolt through the screw hole 7, thereby fixing the bottom plate 1 at the required position.

[0032] It should be noted that the threads at both ends of the lead screw 301 are arranged in opposite directions. The cross-section of the limiting plate 308 is L-shaped, and a protective pad 8 is provided on the inner wall of the limiting plate 308. Due to the threads at both ends of the lead screw 301 being arranged in opposite directions, when the lead screw 301 rotates, the two sliders 305 move inward or outward simultaneously, which is convenient for improving the use convenience. The LED chip can be better clamped by the limiting plate 308 with an L-shaped cross-section.

[0033] In addition, the material of the protective pad 8 is nitrile rubber, and the material of the pressing block 404 is vulcanized rubber. The LED chip is protected from wear by the nitrile rubber protective pad 8 and the vulcanized rubber pressing block 404.

[0034] Working principle: When the device is needed to test the LED chip, the staff places the bottom plate 1 at the required position, uses bolts to pass through the screw holes 7 to fix the mounting seat 6, thereby fixing the bottom plate 1. The LED chip body 5 is placed in the middle of the top of the bottom plate 1. Manually turn the knob 304 to make the worm 303 rotate, driving the worm gear 302 to rotate, thereby driving the slider 305 threadedly connected to the lead screw 301 to move. Then, the limiting plate 308 at one end of the connecting plate 307 clamps the LED chip, facilitating adaptation to LED chips of different sizes. Manually pull the connecting plate 307 in the direction away from the slider 305 to make the limiting plate 308 adapt to the width of the LED chip. The resilience of the spring 309 makes the connecting plate 307 drive the limiting plate 308 to fix the LED chip, improving the clamping effect. Manually turn the screw 401 downward, driving the pressing rod 403 on the fixed sleeve 402 to move downward, and then making the pressing block 404 press down to fix the edge of the LED chip, improving the stability during the LED chip test. The nitrile rubber protective pad 8 and the vulcanized rubber pressing block 404 protect the LED chip from wear.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An LED chip test fixture, comprising a bottom plate (1), characterized in that: Two chutes (2) are formed at the top of the bottom plate (1). A clamping component (3) is arranged inside the two chutes (2). The clamping component (3) includes a lead screw (301). A worm gear (302) is arranged in the middle of the circumferential outer wall of the lead screw (301). A worm (303) is meshed with the worm gear (302). A knob (304) is arranged at one end of the worm (303). Sliders (305) are threadedly connected to both ends of the lead screw (301). Slide bars (306) are arranged on both sides of the tops of the two sliders (305). A connecting plate (307) is slidably connected to the circumferential outer wall of the slide bar (306). A limiting plate (308) is arranged at one end of the connecting plate (307). A pressing component (4) is arranged on the top of the limiting plate (308). An LED chip body (5) is arranged in the middle of the top of the bottom plate (1).

2. The LED chip test fixture according to claim 1, wherein: Springs (309) sleeved on the circumferential outer wall of the slide bar (306) are arranged on both sides of the slider (305). A baffle (310) is arranged at one end of the slide bar (306).

3. The LED chip testing fixture according to claim 2, characterized in that: The pressing component (4) includes a screw rod (401) threadedly connected to the top of the limiting plate (308). A fixed sleeve (402) is arranged on the circumferential outer wall of the screw rod (401). A pressing rod (403) is arranged on the circumferential outer wall of the fixed sleeve (402). A pressing block (404) is arranged at the bottom of the pressing rod (403).

4. The LED chip testing fixture according to claim 3, wherein: A plurality of mounting seats (6) are arranged on the side wall of the bottom plate (1). A screw hole (7) is formed at the top of the mounting seat (6).

5. The LED chip test fixture according to claim 4, characterized in that: The threads at both ends of the lead screw (301) are arranged in opposite directions. The cross section of the limiting plate (308) is L-shaped. A protective pad (8) is arranged on the inner wall of the limiting plate (308).

6. The LED chip testing fixture according to claim 5, characterized in that: The protective pad (8) is made of nitrile rubber. The pressing block (404) is made of vulcanized rubber.

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