Performance test positioning device of LED splitter plate

Abstract

A performance test positioning device of an LED splitter plate comprises a machine base, a fixing base is arranged on the upper portion of the machine base, the fixing base is of a frame-shaped structure with three surrounding sides and one side provided with a notch, a sinking step groove is formed in the end face of the upper portion of the fixing base, a pressing rod frame is arranged on one side of the machine base, a lifting pressing rod is connected to the pressing rod frame, and a test pressing plate is arranged at the end of the lifting pressing rod. A plurality of downward pressing needles are fixed on the testing pressing plate, the pressing needles are arranged above the sinking step groove, elastic probes are arranged on the testing pressing plate, and the length of the elastic probes protruding out of the bottom of the testing pressing plate is larger than the length of the pressing needles protruding out of the bottom of the testing pressing plate. And the pressing needle is pressed against the positioned LED splitter plate for pressing. According to the utility model, the fixation is convenient, the connection of the metal contact is pressed by the elasticity of the elastic probe, the fixation does not shake, the point pressure contact is firm, the test is convenient and fast, and the test efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of UV power supply production technology, and in particular to a performance testing and positioning device for an LED shunt plate. Background Art

[0002] The UV power supply connects to numerous LED chips in the lamps. To ensure balanced voltage and current distribution among these LEDs and achieve stable power output, they are typically grouped into several LED groups. An LED shunt board balances the total input current of the UV power supply, providing stable voltage and current to each group. Therefore, during the assembly of the LED shunt board into the UV power supply, it's necessary to test its conductivity and the output of several balanced current and voltage values ​​after the power input, ensuring the assembled UV power supply provides better balanced power to the lamps.

[0003] Reference Figure 5 , Figure 6 The LED shunt board includes a ballast and power input / output terminals. The power input / output terminals connect to the power circuit of the control board and output power to the LED lamp group. During testing, the power output terminals of the LED shunt board are connected to the wires on the oscilloscope, and probes are connected to the corresponding metal contacts on the LED shunt board. This connects the internal circuit of the LED shunt board, allowing testing of the current conduction, current distribution, and voltage stability of each branch after shunt. In existing technology, probes are manually pressed onto the metal contacts of the LED shunt board for measurement. Because the LED shunt board cannot be placed stably on the testing platform, it is prone to shaking or poor contact during manual pressing, leading to inaccurate oscilloscope results and misjudgments in the LED shunt board test. The testing process is time-consuming and labor-intensive. Summary of the Invention

[0004] The purpose of this utility model is to provide a performance testing and positioning device for LED shunt boards, which aims to solve the problems that are easy to shake or poor contact during manual pressing, which leads to inaccurate oscilloscope test results and misjudgment of LED shunt board testing. The testing process is also time-consuming and labor-intensive.

[0005] To address this, the present invention provides the following technical solution: a performance testing and positioning device for an LED shunt plate, comprising a base, a fixed seat on the upper part of the base, the fixed seat being a frame structure with a notch on one side and a rectangular recessed step groove for positioning the LED shunt plate on the upper end face of the fixed seat; a pressure rod frame on one side of the base, a lifting pressure rod connected to the pressure rod frame, a test pressure plate at the end of the lifting pressure rod, and several downward-facing pressure pins fixed on the test pressure plate, the pressure pins being positioned above the recessed step groove and avoiding the positions of the corresponding circuit components on the LED shunt plate; the test pressure plate also has several elastic probes corresponding to the metal contacts of the LED shunt plate, the length of the elastic probes protruding from the bottom of the test pressure plate being greater than the length of the pressure pins protruding from the bottom of the test pressure plate; by means of the lifting pressure rod, the elastic probes first elastically press against the metal contacts, and then the pressure pins press against the positioned LED shunt plate to tighten it.

[0006] Furthermore, a pair of support protrusions are provided on the inner wall of the recessed stepped groove in the width direction. The surfaces of the pair of support protrusions are flush with the bottom surface of the recessed stepped groove. A receiving cavity for limiting the power input and output terminals is formed between the pair of support protrusions and the inner wall of the recessed stepped groove in the length direction. After the LED shunt plate is positioned and supported in the recessed stepped groove, it is further supported by the support protrusions to ensure the stability of the LED shunt plate. In addition, the two power input and output terminals of the LED shunt plate are limited and housed in the receiving cavity by the support protrusions. The power input and output terminals are protected by the support protrusions and the inner wall of the recessed stepped groove in the length direction to prevent the power input and output terminals from being bumped during testing.

[0007] Furthermore, the surface of the recessed stepped groove is provided with multiple positioning posts corresponding to the positioning holes of the LED splitter plate. The positioning posts are used to position the positioning holes of the LED splitter plate, thereby further improving the positioning accuracy of the LED splitter plate.

[0008] Furthermore, the end surface of the positioning post is flush with the end surface of the fixing seat.

[0009] Furthermore, the mounting base has a sidewall groove on the side opposite to the notch. Through the sidewall groove and the notch, the LED shunt plate can be inserted and fixed via the notch and the sidewall groove, better achieving its placement on the mounting base. This eliminates the need for the LED shunt plate to be placed around the top of the mounting base during placement, thereby reducing the height gap between the test plate and the mounting base.

[0010] Furthermore, the fixing base has a recessed finger groove on the end face opposite to the notch. Using the finger groove, the LED splitter plate can be positioned and placed or removed by pressing it from one side with the thumb against the edge of the finger groove and by the other four fingers surrounding the notch from the other side.

[0011] Furthermore, the elastic probe is equipped with probe wires that connect to the circuit system inside the base. The elastic probe provides power to the LED shunt board positioned on the fixed base and enables circuit continuity.

[0012] Furthermore, the base is provided with a pair of sliding rods, and the test plate is provided with linear bearings corresponding to the sliding rods, with the sliding rods fitted inside the linear bearings. Through the linear bearings, a sliding connection is formed between the sliding rods and the test plate, and the up-and-down movement of the test plate is limited by the sliding rods, improving the stability and accuracy of the pressure pins and elastic probes of the test plate.

[0013] Furthermore, the base is equipped with a control panel, a switch, and a test button. The control panel allows for effective control of test conditions such as voltage and current during product testing, the switch is used to power on the testing device, and the test button is used to initiate the test.

[0014] In this invention, an LED shunt board is inserted from one side of the notch in the mounting base. The power input / output terminals of one LED shunt board are connected to the circuitry of the testing device, while the power input / output terminals of the other LED shunt board are connected to an external oscilloscope. The LED shunt board is positioned by the recessed stepped groove of the mounting base and fixed using a fixing post. After fixing, the measuring pressure plate is pressed down, and the elastic pins elastically press against the metal contacts of the LED shunt board, thereby achieving power and circuit continuity of the LED shunt board. The LED shunt board is further pressed and fixed by the pressure pins on the testing pressure plate. After fixing, the test button is activated, thereby achieving the circuit continuity test, output voltage test, and output current waveform stability test of the LED shunt board.

[0015] This invention provides a convenient mounting base for fixing LED shunt boards. It utilizes the elasticity of the probe to press against the metal contacts, ensuring that the boards will not wobble after fixing and that the point-pressure contact is firm. This makes testing convenient and quick, greatly improving testing efficiency. Attached Figure Description

[0016] Figure 1 This is a top-view three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below.

[0018] Figure 3 This is a schematic diagram of the test device with an LED shunt plate fixed to it.

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the fixed base.

[0020] Figure 5 This is a three-dimensional structural diagram of the LED splitter in the view direction.

[0021] Figure 6 This is a three-dimensional structural diagram of the LED splitter plate viewed from below.

[0022] The components are as follows: 1-Base, 11-Switch, 12-Test button, 13-Emergency stop button, 14-Control panel, 2-Fixed base, 21-Recessed step groove, 211-Support protrusion, 212-Positioning post, 213-Accommodation cavity, 22-Notch, 23-Side wall groove, 24-Finger groove, 3-Test pressure plate, 31-Pressure needle, 32-Linear bearing, 33-Elastic probe, 34-Probe wire, 4-Lifting pressure rod, 41-Handle, 5-Pressure rod bracket, 6-Sliding rod, 7-LED splitter plate, 71-Power input / output terminal, 72-Positioning hole, 73-Ballaster, 74-Metal contact. DETAILED DESCRIPTION

[0023] The embodiments of this utility model will be briefly described below with reference to the accompanying drawings.

[0024] Reference Figure 5 , Figure 6 The LED shunt board 7 includes a ballast 73, a power input / output terminal 71 and a positioning hole 73. Multiple metal contacts 74 are provided on the back of the LED shunt board 7.

[0025] A performance testing and positioning device for an LED shunt board, refer to 1- Figure 3 The device includes a base 1, with a fixed seat 2 on the upper part of the base 1. The base 1 also has a control panel 14, a switch 11, and a test key 12. The control panel 14 can effectively control test conditions such as voltage and current during product testing. The switch 11 is used to start the power supply of the test device, and the test key 12 is used to start the test. An emergency stop key 13 is provided on the front side wall of the base 1 to prevent the power from being shut off in case of test abnormality.

[0026] Reference Figure 4The mounting base 2 is a frame structure with a notch 22 on one side and three sides surrounding it. A rectangular recessed groove 21 for positioning the LED shunt plate 7 is formed on the upper end face of the mounting base 2. The LED shunt plate 7 is positioned and placed using the recessed groove 21. To improve the stability of the recessed groove 21 in supporting the LED shunt plate 7, a pair of support protrusions 211 are provided on the inner wall of the recessed groove 21 in the width direction. The surfaces of the pair of support protrusions 211 are flush with the bottom surface of the recessed groove 21. The support protrusions 211 provide a larger area of ​​multi-point support for the LED shunt plate 7. Furthermore, after the support protrusions 211 are provided, a receiving cavity 213 is formed between the pair of support protrusions 211 and the inner wall of the recessed groove 21 in the length direction, which limits the positioning of the power input / output terminals 71. Cavity 213 can accommodate the protruding power input / output terminal 71, thereby protecting the power input / output terminal 71 by supporting the protrusion 211 and the inner wall of the recessed stepped groove 21 along the length direction, preventing the power input / output terminal 71 from being bumped during testing. The surface of the recessed stepped groove 21 is provided with multiple positioning posts 212 corresponding to the positioning holes 72 of the LED shunt plate 7. The positioning posts 212 are used to position the LED shunt plate 7 by cooperating with the positioning holes 72, thereby further improving the positioning accuracy of the LED shunt plate 7. In a preferred embodiment, the end surface of the positioning post 212 is flush with the end surface of the fixing base 2, thereby ensuring that the positioning post 212 can position the LED shunt plate 7 to the maximum extent, but without protruding too much from the end surface of the fixing base 2, which would affect the convenience of positioning and placing the LED shunt plate 7.

[0027] The base 1 has a pressure rod frame 5 on one side of the fixed base 2. A lifting pressure rod 4 is connected to the pressure rod frame 5. The lifting pressure rod 4 is connected to a handle 41 using the lever principle. The handle 41 controls the lifting and lowering of the lifting pressure rod 4. A test pressure plate 3 is provided at the end of the lifting pressure rod 4. Several downward-facing pressure pins 31 are fixed on the test pressure plate 3. The pressure pins 31 are positioned above the recessed step groove 21 and avoid the positions of the circuit components on the corresponding LED shunt board 7. The test pressure plate 3 is also provided with multiple elastic probes 33 corresponding to the metal contacts 74 of the LED shunt board 7. The elastic probes 33 adopt common testing methods. The needle is composed of a high-performance spring with an average lifespan of 30,000 to 100,000 cycles. The length of the elastic probe 33 protruding from the bottom of the test plate 3 is greater than the length of the pressure needle 31 protruding from the bottom of the test plate 3. After the test plate 3 is lowered by the lifting rod 4, the elastic probe 33 first elastically presses against the metal contact 74, and then the pressure needle 31 presses against the positioned LED shunt plate 7 to tighten it. The elastic probe 33 is provided with a probe wire 34, which is connected to the circuit system inside the base 1. Through the elastic probe 33, power is provided to the LED shunt plate 7 positioned on the fixed base 1 and the circuit is turned on.

[0028] In this embodiment, since the LED shunt plate 7 has a ballast 73, it is inconvenient to fix the LED shunt plate 7 in the fixing seat. In order to further improve the convenience of fixing the fixing seat 2, the fixing seat 2 has a side wall groove 23 on the side opposite to the notch 22, and a recessed finger groove 24 on the end face of the fixing seat 2 on the side opposite to the notch 22. The fixing seat 2 can use the side wall groove 23 and the notch 22 to put the LED shunt plate 7 into the fixing seat 2, so as to better realize its placement on the fixing seat 2. During the placement of the LED shunt plate 7, the LED shunt plate 7 does not need to be placed around the top of the fixing seat 2, thereby reducing the gap height between the test pressure plate 3 and the fixing seat 1. Using the finger groove 24, the thumb can press the LED shunt plate 7 from one side and the other four fingers can be used to clamp the LED shunt plate 7 from the notch 22 on the other side, thereby facilitating the positioning or removal of the LED shunt plate 7.

[0029] In this embodiment, the base 1 is provided with a pair of sliding rods 6, and the test plate 3 is provided with a linear bearing 32 corresponding to the sliding rods 6. The sliding rods 6 are fitted inside the linear bearings 32. Through the linear shaft 32, a sliding connection is formed between the sliding rods 6 and the test plate 3. The test plate 3 moves up and down by sliding the sliding rods 6, which improves the stability and accuracy of the pressure needle 31 and the elastic probe 33 of the test plate 3.

[0030] In this invention, during testing, the LED shunt board 7 is inserted from one side of the notch 22 of the fixing base 2. The power input / output terminal 71 of one LED shunt board 7 is connected to the circuit of the testing device, and the power input / output terminal 71 of the other LED shunt board 7 is connected to an external oscilloscope. The LED shunt board 7 is positioned by the recessed stepped groove 21 of the fixing base 2 and fixed by the fixing post 212. After fixing, the measuring pressure plate 3 is pressed down, and the elastic pin 33 elastically presses against the metal contact 74 of the LED shunt board 7, thereby realizing the power supply and circuit conduction of the LED shunt board 7. The LED shunt board 7 is further pressed and fixed by the pressure pin 31 on the measuring pressure plate 3. After fixing, the test button 12 is turned on, thereby realizing the circuit continuity test, output voltage and output current waveform stability test of the LED shunt board 7.

[0031] The above embodiments merely illustrate the implementation of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A performance test positioning device for an LED manifold, comprising a base, characterized in that: A fixing seat is provided on the upper part of the base, and the fixing seat is a frame-type structure with a notch on one side surrounded by three sides. A rectangular sunken step groove for positioning the LED shunt board is opened on the upper end face of the fixing seat. The base is provided with a pressure rod frame on one side of the fixing seat, and a lifting pressure rod is connected to the pressure rod frame. A test pressure plate is provided at the end of the lifting pressure rod, and a plurality of downward pressure needles are fixed on the test pressure plate. The pressure needles are arranged above the sunken step groove and avoid the positions of circuit components on the corresponding LED shunt board. The test pressure plate is also provided with a plurality of elastic probes corresponding to the metal contacts of the LED shunt board. The length of the elastic probe protruding from the bottom of the test pressure plate is greater than the length of the pressure needle protruding from the bottom of the test pressure plate. By means of the lifting pressure rod, the metal contact is first elastically pressed by the elastic probe, and then the pressure needle is pressed against the positioned LED shunt board to tighten it.

2. A performance test positioning device for an LED manifold according to claim 1, characterized in that: A pair of supporting protrusions are provided on the inner wall in the width direction of the sunken step groove, and the surfaces of the pair of supporting protrusions are flush with the bottom surface of the sunken step groove. A accommodating cavity for limiting the input and output terminals of the power supply is formed between the pair of supporting protrusions and the inner wall in the length direction of the sunken step groove.

3. The performance test positioning device for an LED manifold according to claim 1, characterized in that: A plurality of positioning posts corresponding to the positioning holes of the LED diverter plate are arranged on the surface of the sunken step groove.

4. The performance test positioning device for an LED manifold according to claim 3, characterized in that: The end surface of the positioning column is flush with the end surface of the fixing seat.

5. The performance test positioning device for an LED manifold according to claim 1, characterized in that: The fixing seat is provided with a side wall groove on a side opposite to the notch.

6. The performance test positioning device for an LED manifold according to claim 1, characterized in that: The fixing seat is provided with a sunken finger groove on the end surface opposite to the notch.

7. The performance test positioning device for an LED manifold according to claim 1, characterized in that: The elastic probe is provided with a probe wire, and the probe wire is connected to the circuit system inside the base.

8. The performance test positioning device for an LED manifold according to claim 1, characterized in that: The machine base is provided with a pair of sliding rods, and the test platen is provided with linear bearings corresponding to the sliding rods, and the sliding rods are sleeved in the linear bearings.

9. A performance test positioning device for an LED manifold according to any one of claims 1 to 8, characterized in that: A control panel, a switch and a test key are arranged on the machine base.

Images