Micro-channel laser array single-bar detection device and detection method

Abstract

The application relates to a micro-channel laser array single-bar detection device and a detection method, and belongs to the field of semiconductor laser packaging. The device comprises a base, a water passing seat and a fixing seat. The water passing seat is provided with a water inlet on one side and a water outlet on the other side. The fixing seat is provided with a fixing frame on the upper part. The fixing frame is provided with a sliding block capable of moving up and down on one side. The sliding block is provided with an insulating block on the front side. The insulating block is provided with two brackets symmetrically distributed on the upper part. The two brackets are respectively provided with a negative electrode and a positive electrode on the end parts. The negative electrode and the positive electrode are used for placing an array. The side close to the array of the negative electrode and the positive electrode is respectively provided with a negative electrode protrusion and a positive electrode protrusion, which are respectively used for supplying power to the negative electrode end and the positive electrode end of the laser. The application is convenient to operate, high in production efficiency and capable of realizing rapid and accurate detection of the laser array single-bar.

Description

TECHNICAL FIELD

[0001] The present application relates to a micro-channel laser array single-bar detection device and a detection method, and belongs to the technical field of semiconductor laser packaging. BACKGROUND

[0002] In recent years, due to the high output power, good beam quality, compact mechanism and long service life of semiconductor lasers, as well as the unique advantages of small size, light weight, high efficiency and high reliability, semiconductor lasers have been widely used in pumping, medical treatment, display lighting, laser processing and military fields. With the gradual optimization of the structure of high-power semiconductor laser chips and the progress of packaging technology, the preparation and application of micro-channel lasers with output power exceeding one kilowatt have also rapidly grown. With the increasing demand of users and the in-depth research, the performance of high-power micro-channel semiconductor lasers has been rapidly improved.

[0003] In order to obtain high-power laser output and achieve good heat dissipation requirements, multiple micro-channel lasers need to be neatly stacked together through a series of components. This stacked laser is commonly known as an array. Due to the high power of the laser, during the aging test of the array, the heat generated by the laser must be dissipated in time, and a certain amount of low-temperature liquid needs to be passed through the array to cool it. Due to the uneven distribution of the internal structure of the array laser and the liquid pressure, the flow rate and temperature of the refrigerant liquid in each laser in the array are not exactly the same, resulting in differences in the parameters of each laser. During the production of micro-channel lasers, the parameters of the single-bar in the array need to be tested to detect the flow distribution law in the array.

[0004] Because the thickness of each micro-channel laser is less than 2mm, the cross section of the two sides of the laser is small. After the laser array is formed, the single laser is powered on for detection. Because there is no special single-bar detection device for the micro-channel laser array, the operation is difficult. At present, the commonly used method is to power on the entire array, light up all the lasers in the array, and then detect the temperature of the entire array by using an infrared thermal imager. According to the temperature detection result of each laser, the power value of the single laser and the flow distribution of the array are calculated. This detection method is simple to operate but has a large error, and it is difficult to accurately detect the parameters of the laser. Another method is to power on the array, and then use a metal plate with a square hole of the size of the end face of the laser to shield the array. By manually adjusting the position of the shielding plate, the non-detected laser is shielded, so that the laser emitted by the to-be-detected laser passes through the square hole and irradiates on the detector to detect the parameters of the laser. The structure of the device is simple, the detection result is more accurate than the infrared detection, but because the power of the laser is large, the temperature of the shielding plate reaches a relatively high temperature, the operation is difficult and there is a great safety hazard, the labor intensity is large for a long time operation, the moving position accuracy of the shielding plate is poor, the detection efficiency is low, and it is difficult to avoid the interference of other lasers during detection. At the same time, it is easy to touch the laser cavity during operation, which causes pollution and damage to the product and affects the product detection qualification rate.

[0005] Based on the above prior art, there is an urgent need for a micro-channel laser array single-bar detection device and detection method with simple structure, convenient operation, high production efficiency and high precision to solve the problems existing in the current laser array single-bar detection work. SUMMARY

[0006] In view of the shortcomings of the prior art, the present application provides a micro-channel laser array single-bar detection device with simple structure, convenient operation and high production efficiency, which can realize rapid and accurate detection of the laser array. The present application also provides a detection method for the above-mentioned micro-channel laser array single-bar detection device.

[0007] The present application adopts the following technical solutions:

[0008] A micro-channel laser array single-bar detection device, comprising a base, a water passage seat and a fixing seat, the base is located at the lowermost end of the device, and the water passage seat and the fixing seat are respectively located at the middle of the front end and the middle of the rear end of the base;

[0009] The water passage seat is internally provided with a certain water passage pipeline. A water inlet is arranged on one side of the water passage seat, and the water inlet is used for connecting a low-temperature liquid inlet pipeline. A water outlet is arranged on the other side of the water passage seat, and the water outlet is used for discharging the refrigerant flowing through the array. The upper part of the water passage seat is connected with the array through a connecting seat. The cooling liquid enters the water passage seat, the connecting seat and the lasers in the array in sequence through the water inlet;

[0010] The connecting seat is located on the upper end of the water passage seat, and is provided with a fixing screw hole corresponding to the laser stack array, and the stack array and the connecting seat are fixed by a screw, the micro-channel laser of the present application has two holes, one water inlet hole and one water outlet hole, the connecting seat is provided with a water inlet hole and a water outlet hole which are completely penetrated and are adapted to the structure and size of the water inlet hole and the water outlet hole of the laser, the upper end of the water passage seat is also provided with a water inlet hole and a water outlet hole which are the same in structure and size as the laser, the water inlet holes of the connecting seat, the laser and the water passage seat are concentric and communicate with the water inlet of the water passage seat, and the water outlet holes of the three communicate with the water outlet of the water passage seat, in the present application, all the micro-channel lasers in the stack array are stacked together, the water inlet holes of each laser communicate, and the water outlet holes communicate, the refrigerant flows into the water inlet hole of the water passage seat, then enters the water inlet hole of the connecting seat, and finally enters the water inlet holes of all the lasers in the stack array and enters the interior of the laser, then flows out from all the water outlet holes of the laser, then passes through the water outlet holes of the connecting seat and the water passage seat, and finally is discharged from the water outlet of the water passage seat, the internal structure of the stack array is the internal structure of the micro-channel laser, and the structure of the micro-channel laser is a conventional technology of this type of laser and is not the focus of the present application, and will not be described here.

[0011] The upper part of the fixing seat is provided with a fixing frame, one side of the fixing frame is provided with a sliding block capable of moving up and down along the fixing frame, the front side of the sliding block is provided with an insulating block, the insulating block is provided with two supports which are symmetrically distributed, the two supports are insulated by the insulating block, the ends of the two supports are respectively provided with a negative electrode and a positive electrode, the negative electrode and the positive electrode are used for placing the stack array, and the side close to the stack array of the negative electrode and the positive electrode is respectively provided with a negative electrode protrusion and a positive electrode protrusion for supplying power to the negative end and the positive end of the laser.

[0012] The negative electrode protrusion and the positive electrode protrusion are the same in size, the width of the negative electrode protrusion and the positive electrode protrusion is consistent with the width of the side wall of each laser, and the thickness of the negative electrode protrusion and the positive electrode protrusion is less than the thickness of each laser.

[0013] Preferably, the negative electrode protrusion and the positive electrode protrusion are located in the vertical direction, the height of the negative electrode protrusion is greater than the height of the positive electrode protrusion, and the height difference is greater than the thickness of a single laser.

[0014] The present application is used for single-bar testing, i.e. single-laser testing. The lower end of the micro-channel laser is the positive electrode, and the upper end of the negative electrode is the negative electrode. The negative electrode is very thin, with a thickness of less than 0.2 mm, which is basically negligible for the height of the entire laser. Since the negative electrode is too thin to be contacted from the side for power supply, the upper end of the laser to be tested is contacted with the negative electrode of the upper end of the laser, which is used as the negative electrode of the laser to be tested. The two electrodes are in a staggered structure to prevent the positive electrode and the negative electrode from contacting the same laser heat sink, causing the positive electrode and the negative electrode to short circuit. Since the height of the staggered structure is greater than the height (i.e. thickness) of one laser, it can be ensured that short circuit does not occur during testing.

[0015] Preferably, the two ends of the bracket are provided with an adjusting mechanism for adjusting the positions of the negative electrode and the positive electrode;

[0016] The adjusting mechanism comprises an adjusting screw and spring screws located on both sides of the adjusting screw. The spring screws are fixedly connected to the negative electrode or the positive electrode at the corresponding position through the bracket, and can move left and right along the bracket for adjusting the left and right positions of the negative electrode and the positive electrode.

[0017] A spring is sleeved between the spring screw and the bracket;

[0018] The adjusting screw is threadedly connected to the bracket, and the end of the adjusting screw is in contact with the negative electrode or the positive electrode at the corresponding position. The outer diameter of the screw cap of the adjusting screw is greater than the distance between the screw caps of the two spring screws on both sides.

[0019] Preferably, one side of the fixing frame is fixedly connected to a static sliding block, which is stationary. The sliding block and the static sliding block are connected through a sliding rail. The sliding block can move up and down along the static sliding block without separating from each other. The upper end of the sliding block is provided with a knob through a fixing piece. The lower end of the connecting rod of the knob is in contact with the static sliding block. Rotating the knob can adjust the up and down position of the fixing piece. The fixing piece is fixedly connected to the sliding block, i.e. the up and down position of the sliding block can be accurately adjusted by rotating the knob.

[0020] The specific structure of the connecting rod can be flexibly selected according to actual needs, such as a screw rod threadedly connected to the fixing piece, etc., which do not affect the implementation of the present application.

[0021] Preferably, a locking screw is arranged between the sliding block and the static sliding block. When the locking screw is tightened, the sliding block and the static sliding block are locked, and the sliding block cannot move up and down at this time. When the locking screw is loosened, the sliding block can move up and down through the knob. The main function of the locking screw is to lock after the height of the electrode is adjusted during aging to prevent the sliding block from moving due to accidental contact with the knob by the operator, causing the up and down position of the electrode to change.

[0022] Preferably, the negative electrode upper end is provided with a negative electrode screw, and the positive electrode upper end is provided with a positive electrode screw, which are respectively used for fixing the negative electrode line and the positive electrode line of the power output.

[0023] Preferably, the static slide block and the fixed frame, the insulating block and the slide block, and the support and the insulating block are fixedly connected by bolts.

[0024] Preferably, the negative electrode and the positive electrode are made of metal materials with good conductivity, the negative electrode protrusion and the negative electrode are an integral structure, and the positive electrode protrusion and the positive electrode are also an integral structure. In the present application, the materials of the two supports, the spring screws and the adjusting screws have no special requirements. The supports are generally made of stainless steel or aluminum alloy materials with good wear resistance, and do not need to be insulated, because the supports are connected with the insulating blocks through insulating screws, and the insulating blocks are not conductive, so that the two supports are kept insulated.

[0025] A detection method of the micro-channel laser stack single-bar detection device, comprising the following steps:

[0026] (1) fixing the assembled laser stack to the upper end of the connecting seat;

[0027] (2) introducing cooling liquid into the water inlet, and the cooling liquid enters the internal channel of the stack through the water seat and the connecting seat to cool the stack;

[0028] (3) adjusting the knob to move the slide block up and down, thereby adjusting the positions of the negative electrode and the positive electrode, and moving the negative electrode and the positive electrode to the position of the laser to be detected, so that the negative electrode protrusion is aligned with the side surface of the laser at the upper end of the laser to be detected, and the positive electrode protrusion is aligned with the side surface of the laser to be detected;

[0029] (4) rotating the adjusting screw clockwise, and the adjusting screw drives the negative electrode and the positive electrode to move towards the stack, so that the negative electrode protrusion and the positive electrode protrusion are in close contact with the laser;

[0030] (5) turning on the power output switch, and the power output end passes through the positive electrode and the negative electrode to detect the single laser;

[0031] The process of power-on detection is: the power output current passes through the positive electrode and the negative electrode to electrify the single-bar laser, so that the laser is lit, and the laser emitted by the laser is irradiated onto the photoelectric detector, and the parameters of the laser are analyzed by the photoelectric detector;

[0032] (6) after the laser detection is completed, the adjusting screw is rotated counterclockwise to reset the negative electrode and the positive electrode;

[0033] (7) repeat steps (3)-(6), adjust the knob again to move the slider, move the negative electrode and the positive electrode to the position of the next laser to be tested, and detect in the same way until all the lasers on the stack are tested;

[0034] (8) after all the lasers are tested, stop inputting the coolant, input a certain amount of gas into the water inlet, and discharge the coolant in the stack through the water outlet;

[0035] (9) remove the stack from the connecting seat, and complete the single-bar testing of the micro-channel laser stack.

[0036] Preferably, step (4) is specifically:

[0037] clockwise rotate the adjusting screw, the front end of the adjusting screw pushes the negative electrode and the positive electrode to move forward, and the spring screw is also moved forward, so that the spring is compressed;

[0038] Step (6) is specifically:

[0039] counterclockwise rotate the adjusting screw, the adjusting screw moves away from the stack, and the spring drives the negative electrode and the positive electrode away from the stack, i.e. reset.

[0040] The details of the present application can be referred to the prior art.

[0041] The present application has the following advantages:

[0042] The present application adopts mechanical design, has simple structure, low manufacturing cost, long service life, and is easy to maintain and operate. The single-bar testing of the stack is more simple and convenient, the labor intensity is reduced, the single laser in the stack can be accurately tested, the interference of other lasers is effectively avoided, and the single-bar testing efficiency of the stack is improved by ten times. Meanwhile, the operator does not directly contact the product during the testing process, the testing work is safer and more reliable, the product pollution and damage caused by human factors can be effectively avoided, and the qualified rate of the stack laser testing is improved to more than 75% (in the traditional stack laser testing process, due to the pollution and damage of the product, the qualified rate is about 50%). BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 is a schematic view of the three-dimensional structure of the single-bar testing device for the micro-channel laser stack of the present application;

[0044] Figure 2 is a schematic view of the three-dimensional structure of the stack of the present application;

[0045] Figure 3 is a schematic view of the cooperation state of the single-bar testing device and the stack of the present application;

[0046] Figure 4 Partially enlarged view of the cooperation state of the single-bar detection device of the present application and the stacked array;

[0047] Figure 5 Front view of the cooperation state of the single-bar detection device of the present application and the stacked array;

[0048] Wherein, 1 - base, 2 - water seat, 3 - water inlet, 4 - water outlet, 5 - connecting seat, 6 - fixed seat, 7 - fixed frame, 8 - sliding block, 9 - knob, 10 - insulating block, 11 - support, 12 - negative electrode, 13 - positive electrode, 14 - stacked array, 15 - laser, 16 - negative electrode protrusion, 17 - positive electrode protrusion, 18 - negative electrode screw, 19 - positive electrode screw, 20 - spring screw, 21 - spring, 22 - adjusting screw, 23 - static sliding block, 24 - locking screw. DETAILED DESCRIPTION

[0049] To make the technical problems, technical solutions and advantages of the present application clearer, specific embodiments will be described in detail below with reference to the drawings, but the present application is not limited to this. The parts not described in detail are conventional in the art.

[0050] Example 1:

[0051] A micro-channel laser stacked array single-bar detection device, as shown in Figures 1-5 Fig. 1, comprises a base 1, a water seat 2 and a fixed seat 6. The base 1 is located at the lowermost end of the device, and the water seat 2 and the fixed seat 6 are located at the middle of the front end and the middle of the rear end of the base 1, respectively.

[0052] The water seat 2 is internally provided with a certain water pipeline. The water seat 2 is provided with a water inlet 3 on one side and a water outlet 4 on the other side. The water inlet 3 is used to connect the low-temperature liquid inlet pipeline, and the water outlet 4 is used to discharge the refrigerant flowing through the stacked array. The upper part of the water seat 2 is connected to the stacked array 14 through a connecting seat 5. The cooling liquid enters the laser 15 in the water seat 2, the connecting seat 5 and the stacked array 14 in sequence through the water inlet 3.

[0053] The connecting seat 5 is located on the upper end of the water passing seat 2, and the connecting seat 5 is provided with a fixing screw hole corresponding to the laser stack array, and the stack array and the connecting seat are fixed through the screw, the micro-channel laser of the present application has two holes, one water inlet hole and one water outlet hole, the connecting seat is provided with a water inlet hole and a water outlet hole which are completely penetrated and are adapted to the structure and size of the water inlet hole and the water outlet hole of the laser, and the upper end of the water passing seat is also provided with a water inlet hole and a water outlet hole which are the same in structure and size as the laser, the water inlet holes of the connecting seat, the laser and the water passing seat are concentric and communicate with the water inlet of the water passing seat, and the water outlet holes of the three communicate with the water outlet of the water passing seat, in the present application, all the micro-channel lasers in the stack array are stacked together, the water inlet holes of each laser communicate, and the water outlet holes communicate, the refrigerant flows into the water inlet hole of the water passing seat, then enters the water inlet hole of the connecting seat, and finally enters the water inlet holes of all the lasers in the stack array and enters the inside of the laser, then flows out through all the water outlet holes of the laser, then passes through the water outlet holes of the connecting seat and the water passing seat, and finally is discharged from the water outlet of the water passing seat, the internal structure of the stack array is the internal structure of the micro-channel laser, and the structure of the micro-channel laser is a conventional technology of this type of laser and is not the focus of the present application, and thus will not be described here.

[0054] The upper part of the fixing seat 6 is provided with a fixing frame 7, one side of the fixing frame 7 is provided with a sliding block 8 which can move up and down along the fixing frame 7, the front side of the sliding block 8 is provided with an insulating block 10, the insulating block 10 is provided with two supports 11 which are symmetrically distributed, the two supports are insulated by the insulating block 10, the two supports 11 are respectively provided with a negative electrode 12 and a positive electrode 13 at the end portions, the negative electrode 12 and the positive electrode 13 are used for placing the stack array 14 therebetween, and the side close to the stack array of the negative electrode 12 and the positive electrode 13 is respectively provided with a negative electrode protrusion 16 and a positive electrode protrusion 17 for supplying power to the negative terminal and the positive terminal of the laser;

[0055] The negative electrode protrusion 16 and the positive electrode protrusion 17 are the same in size, the width of the negative electrode protrusion 16 and the positive electrode protrusion is consistent with the width of the side wall of each laser, and the thickness of the negative electrode protrusion and the positive electrode protrusion is less than the thickness of each laser.

[0056] Embodiment 2

[0057] A micro-channel laser stack array single-bar detection device, as described in Embodiment 1, except that the negative electrode protrusion 16 and the positive electrode protrusion 17 are located in a staggered position in the vertical direction, the height of the negative electrode protrusion 16 is greater than the height of the positive electrode protrusion 17, and the height difference is greater than the thickness of a single laser 15.

[0058] Embodiment 3

[0059] A micro-channel laser stack array single-bar detection device, as described in Embodiment 2, except that the end portions of the two supports 11 are each provided with an adjusting mechanism for adjusting the positions of the negative electrode 12 and the positive electrode 13;

[0060] The adjusting mechanism comprises an adjusting screw 22 and spring screws 20 on both sides of the adjusting screw 22, the spring screws 20 are fixedly connected with the negative electrode or the positive electrode at the corresponding position through the support, and the spring screws 20 can move left and right along the support, and are used for adjusting the left and right positions of the negative electrode and the positive electrode;

[0061] The spring 21 is sleeved between the spring screw 20 and the support;

[0062] The adjusting screw 22 is in threaded cooperation with the support, the end of the adjusting screw 22 is in contact with the negative electrode or the positive electrode at the corresponding position, and the outer diameter of the screw cap of the adjusting screw 22 is greater than the distance between the screw caps of the two spring screws on both sides.

[0063] Embodiment 4:

[0064] A micro-channel laser stack single-bar detection device is described in Embodiment 3, except that one side of the fixing frame 7 is fixedly connected with a static sliding block 23, which is static, the sliding block 8 and the static sliding block 23 are connected through a slide rail, the sliding block 8 can move up and down along the static sliding block 23 and is not separated from each other, a knob 9 is arranged on the upper end of the sliding block 8 through a fixing piece, the lower end of the knob 9 is connected with the static sliding block 23, rotating the knob 9 can adjust the up and down position of the fixing piece, the fixing piece is fixedly connected with the sliding block 8, that is, the up and down position of the sliding block 8 can be accurately adjusted by rotating the knob 9.

[0065] Embodiment 5:

[0066] A micro-channel laser stack single-bar detection device is described in Embodiment 4, except that a locking screw 24 is arranged between the sliding block 8 and the static sliding block 23, when the locking screw 24 is tightened, the sliding block and the static sliding block are locked, at this time, the sliding block cannot move up and down, when the locking screw is loosened, the sliding block can move up and down through the knob, the main function of the locking screw is to lock after the electrode height is adjusted during aging, to prevent the operator from accidentally touching the knob and causing the sliding block to move, resulting in the change of the up and down position of the electrode.

[0067] Embodiment 6:

[0068] A micro-channel laser stack single-bar detection device is described in Embodiment 5, except that a negative electrode screw 18 is arranged on the upper end of the negative electrode 12, and a positive electrode screw 19 is arranged on the upper end of the positive electrode 13, which are respectively used for fixing the negative electrode line and the positive electrode line of the power supply output.

[0069] Embodiment 7:

[0070] A micro-channel laser stack single-bar detection device, as described in Embodiment 6, except that the static slider 23 and the fixed frame 7, the insulating block 10 and the slider 8, and the bracket 11 and the insulating block 10 are all fixedly connected by bolts.

[0071] Embodiment 8:

[0072] A micro-channel laser stack single-bar detection device, as described in Embodiment 6, except that the negative electrode 12 and the positive electrode 13 are made of metal materials with good electrical conductivity, the negative electrode protrusion 16 and the negative electrode 12 are an integral structure, and the positive electrode protrusion 17 and the positive electrode 13 are also an integral structure. In the present application, the materials of the two brackets, the spring screws, and the adjusting screws have no special requirements. The brackets are generally made of stainless steel or aluminum alloy materials with good wear resistance, and do not need to be insulated. Because the brackets are connected to the insulating block by insulating screws, the insulating block does not conduct electricity, thereby maintaining the insulation between the two brackets.

[0073] Embodiment 9:

[0074] A detection method of a micro-channel laser stack single-bar detection device, comprising the following steps:

[0075] (1) Fix the assembled laser stack to the upper end of the connecting seat 5;

[0076] (2) Pass the cooling liquid into the water inlet 3, and the cooling liquid passes through the water seat 2 and the connecting seat 5 to enter the internal channel of the stack 14 to cool the stack;

[0077] (3) Adjust the knob 9 to move the slider 8 up and down, thereby adjusting the positions of the negative electrode 12 and the positive electrode 13, and moving the negative electrode and the positive electrode to the position of the laser to be detected, so that the negative electrode protrusion is aligned with the side of the laser on the upper end of the laser to be detected, and the positive electrode protrusion is aligned with the side of the laser to be detected;

[0078] (4) Rotate the adjusting screw 22 clockwise, and the adjusting screw 22 pushes the negative electrode 12 and the positive electrode 13 to move towards the stack, so that the negative electrode protrusion 16 and the positive electrode protrusion 17 are in close contact with the laser;

[0079] (5) Turn on the power output switch, and the power output end passes through the positive electrode and the negative electrode to conduct electricity to the single laser for detection;

[0080] The process of electricity detection is: the power output current passes through the positive electrode and the negative electrode to conduct electricity to the single-bar laser, so that the laser is lit, and the laser emitted by the laser is irradiated onto the photodetector, and the parameters of the laser are analyzed by the photodetector;

[0081] (6) After the laser detection is completed, rotate the adjusting screw 22 counterclockwise to reset the negative electrode and the positive electrode;

[0082] (7) Repeat steps (3)-(6), adjust the knob again to move the slider, move the negative electrode and the positive electrode to the position of the next laser to be tested, and test in the same way until all the lasers on the stack are tested;

[0083] (8) After all the lasers are tested, stop inputting the coolant, input a certain amount of gas into the water inlet 3, and discharge the coolant in the stack through the water outlet 4;

[0084] (9) Remove the stack from the connecting seat, and complete the single-bar testing of the micro-channel laser stack.

[0085] Example 10:

[0086] A testing method of the micro-channel laser stack single-bar testing device is as described in Example 9, except that step (4) is specifically as follows:

[0087] Rotate the adjusting screw 22 clockwise, and push the negative electrode 12 and the positive electrode 13 forward with the front end of the adjusting screw 22, and move the spring screw 20 forward, so as to compress the spring;

[0088] Step (6) is specifically as follows:

[0089] Rotate the adjusting screw 22 counterclockwise, and move the adjusting screw 22 away from the stack, and drive the negative electrode 12 and the positive electrode 13 away from the stack through the spring screw 20, i.e. reset.

[0090] The above is the preferred embodiment of the present application. It should be noted that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should also be considered within the scope of protection of the present application.

Claims

1. A micro-channel laser stack single-bar detection device, characterized in that, It comprises a base, a water passing seat and a fixing seat, which are respectively located at the middle of the front end and the middle of the rear end of the base; One side of the water passing seat is provided with a water inlet, and the other side is provided with a water outlet, and the upper part of the water passing seat is connected with the array through the connecting seat, and the cooling liquid enters the laser in the water passing seat, the connecting seat and the array in sequence through the water inlet; The upper part of the fixing seat is provided with a fixing frame, one side of the fixing frame is provided with a sliding block which can move up and down along the fixing frame, the front side of the sliding block is provided with an insulating block, two supports symmetrically distributed are arranged on the insulating block, a negative electrode and a positive electrode are respectively arranged at the end of the two supports, the negative electrode and the positive electrode are used for placing the array, and a negative protrusion and a positive protrusion are respectively arranged on the side of the negative electrode and the positive electrode close to the array, which are respectively used for supplying power to the negative end and the positive end of the laser; The size of the negative protrusion and the positive protrusion is the same, the width of the negative protrusion and the positive protrusion is consistent with the width of the side wall of each laser, and the thickness of the negative protrusion and the positive protrusion is smaller than the thickness of each laser; The negative protrusion and the positive protrusion are located in the vertical direction, the height of the negative protrusion is greater than the height of the positive protrusion, and the height difference is greater than the thickness of a single laser; The end of each of the two supports is provided with an adjusting mechanism for adjusting the position of the negative electrode and the positive electrode; The adjusting mechanism comprises an adjusting screw and spring screws located on both sides of the adjusting screw, the spring screws are fixedly connected with the negative electrode or the positive electrode at the corresponding position through the supports, the spring screws can move left and right along the supports, and are used for adjusting the left and right positions of the negative electrode and the positive electrode; A spring is sleeved between the spring screw and the support; The adjusting screw is threadedly connected with the support, and the end of the adjusting screw is in contact with the negative electrode or the positive electrode at the corresponding position, and the outer diameter of the screw cap of the adjusting screw is greater than the distance between the screw caps of the two spring screws on both sides.

2. The micro-channel laser stack single cell detection device of claim 1, wherein, One side of the fixing frame is fixedly connected with a static sliding block, the sliding block and the static sliding block are connected through a sliding rail, the sliding block can move up and down along the static sliding block, the upper end of the sliding block is provided with a knob through a fixing piece, the lower end of the connecting rod of the knob is in contact with the static sliding block, and the up and down positions of the fixing piece can be adjusted by rotating the knob, that is, the up and down positions of the sliding block can be adjusted by rotating the knob.

3. The micro-channel laser stack single cell detection device of claim 2, wherein, A locking screw is arranged between the sliding block and the static sliding block.

4. The micro-channel laser stack single cell detection device of claim 3, wherein, A negative screw is arranged at the upper end of the negative electrode, and a positive screw is arranged at the upper end of the positive electrode, which are respectively used for fixing the negative line and the positive line of the power supply output.

5. The micro-channel laser stack monoblock detection device of claim 4, wherein, The static sliding block and the fixing frame, the insulating block and the sliding block, and the support and the insulating block are fixedly connected through bolts.

6. The micro-channel laser stack monoblock detection device of claim 5, wherein, The negative electrode and the positive electrode are made of conductive metal material, the negative protrusion and the negative electrode are an integral structure, and the positive protrusion and the positive electrode are also an integral structure.

7. A method of detecting a microchannel laser stack monoblock assembly as claimed in claim 6, wherein, The method comprises the following steps: (1) fixing the assembled laser array to the upper end of the connecting seat; (2) introducing cooling liquid into the water inlet, and the cooling liquid enters the internal passage of the array through the water passing seat and the connecting seat to cool the array; (3) adjusting the knob to move the sliding block up and down, thereby adjusting the positions of the negative electrode and the positive electrode, and moving the negative electrode and the positive electrode to the position of the laser to be measured; (4) clockwise rotation of the adjusting screw, so that the negative and positive protrusions are in close contact with the laser; (5) open the power output switch, and power on the laser for detection; (6) after the laser detection is completed, rotate the adjusting screw counterclockwise to reset the negative and positive electrodes; (7) repeat steps (3) to (6) to detect all the lasers on the stack; (8) after all the lasers are detected, stop inputting the coolant, and input gas into the water inlet to discharge the coolant in the stack through the water outlet; (9) remove the stack from the connecting seat, and complete the single-bar detection of the micro-channel laser stack.

8. The detection method of the microchannel laser stacked array single-bar detection device according to claim 7, characterized in that, Step (4) is specifically: clockwise rotation of the adjusting screw, which pushes the negative and positive electrodes forward, and at the same time drives the spring screw to move forward, so that the spring is compressed; Step (6) is specifically: counterclockwise rotation of the adjusting screw, which moves the adjusting screw away from the stack, and the spring drives the negative and positive electrodes away from the stack through the spring screw, i.e. reset.

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