A single-bar rapid cooling detection device for a microchannel laser and its usage method

Abstract

This invention relates to a device for detecting rapid cooling of a single bar in a microchannel laser and its method of use, belonging to the field of semiconductor lasers. It includes a positive electrode cooling mechanism, a microchannel laser, and a negative electrode cooling mechanism. The positive electrode cooling mechanism includes a positive electrode base and a positioning seat. N dummy bars are arranged in positioning groove I. The positioning seat is used to press the dummy bars and position the laser. A positive electrode bolt is provided on one side of the positive electrode base. The negative electrode cooling mechanism includes a negative electrode base and a pressure plate. M dummy bars are arranged in positioning groove II. The pressure plate is used to press the dummy bars. A negative electrode bolt is provided on one side of the negative electrode base. A fixing bolt is provided at the upper end of the pressure plate. A set of vertical guide columns is also provided on one side of the positive electrode cooling mechanism, allowing the negative electrode cooling mechanism to move up and down along the guide columns. This invention provides a simple structure, convenient operation, uniform temperature distribution, and rapid cooling speed, enabling the detection of rapid cooling of a single bar in a microchannel laser, thereby improving the production efficiency and yield of microchannel lasers.

Description

Technical Field

[0001] This invention relates to a single-bar rapid cooling detection device for a microchannel laser and its usage method, belonging to the field of semiconductor laser technology. Background Technology

[0002] In recent years, due to the unique characteristics of semiconductor lasers, such as small size, light weight, high efficiency, and high reliability, the use of high-power semiconductor lasers has gradually expanded, finding increasingly widespread applications in fields such as solid-state laser pumping, medical applications, display lighting, laser processing, and military applications. With the gradual optimization of high-power semiconductor laser chip structures and advancements in packaging technology, the fabrication and application of laser bar chip arrays with output power exceeding kilowatts have also grown rapidly. While using laser bar chip arrays can significantly improve the output power and packaging density of semiconductor lasers, it also leads to a significant increase and accumulation of heat generated by the chip. To achieve optimal heat dissipation and ensure the normal operation of high-power semiconductor lasers, the packaging of array semiconductor lasers primarily employs microchannel heat sinks (liquid-cooled heat sinks with built-in microchannels), effectively dissipating the heat generated by the laser bar chips through the introduction of cooling water.

[0003] In the production process of microchannel lasers, the packaged microchannel semiconductor lasers need to undergo performance testing. A common method is to pass a certain amount of coolant through the laser to maintain a low temperature, and then apply a current of hundreds of amps to it, monitoring changes in parameters such as power, voltage, wavelength, and half-width to determine the laser's performance. Microchannel lasers have relatively high power, generating a significant amount of heat during testing. Coolant is essential to dissipate this heat promptly and prevent the laser from overheating and burning out.

[0004] Currently, the commonly used cooling testing method involves sealing and fixing a single microchannel laser on a coolant supply seat, through which coolant is supplied to the laser for cooling. However, due to the fine internal channels of a microchannel laser, the amount of coolant passing through the laser is generally small, resulting in limited heat dissipation and uneven temperature distribution. Therefore, cooling during single-bar testing is typically slow, requiring a considerable waiting time, impacting production efficiency and testing accuracy. To rapidly cool the laser, methods often include increasing the coolant inlet pressure and flow rate to dissipate heat quickly. However, because the internal channels of a microchannel laser are in a sealed environment, and the heat sink has a multi-layered welded structure, the laser's ability to withstand coolant pressure is limited. Excessive pressure can degrade the rigidity of the heat sink, even causing cracking and leakage, affecting laser performance and yield.

[0005] Therefore, it is necessary to design a detection device that is simple in structure, easy to operate, has uniform temperature distribution, and fast cooling speed, which can realize rapid cooling of microchannel lasers by a single bar, so as to improve the production efficiency and pass rate of microchannel lasers. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a single-bar rapid cooling detection device for microchannel lasers and its usage method. The device has a simple structure, is easy to operate, has uniform temperature distribution, and a fast cooling speed, enabling the detection of rapid single-bar cooling of microchannel lasers and improving the production efficiency and pass rate of microchannel lasers.

[0007] The present invention adopts the following technical solution:

[0008] A microchannel laser single-bar rapid cooling detection device includes a positive electrode cooling mechanism, a microchannel laser, and a negative electrode cooling mechanism;

[0009] The positive electrode cooling mechanism includes a positive electrode base and a positioning seat. The positive electrode base is provided with a positioning groove I, and N dummy bars are provided in the positioning groove I, where N is a natural number greater than 1, preferably 5. The positive electrode base is mainly used to fix the dummy bars. The positioning seat is fixed on the positive electrode base and is used to press the dummy bars and position the microchannel laser. A positive electrode bolt is provided on one side of the positive electrode base for connecting to the positive output terminal of the detection circuit.

[0010] The upper end of the positioning seat is used to position the microchannel laser, and the lower end of the positioning seat is used to fix and seal the dummy electrode placed in the positive electrode base;

[0011] The microchannel laser is positioned on the positioning seat of the positive electrode cooling mechanism. The positive electrode cooling mechanism is mainly used to position the microchannel laser, cool the lower positive electrode area of ​​the microchannel laser, and supply power to the positive electrode of the microchannel laser.

[0012] The negative electrode cooling mechanism includes a negative electrode base and a pressure plate. The negative electrode base has a positioning groove II, and M dummy bars are installed in the positioning groove II, where M is a natural number greater than 1, preferably M = N, and the number is 5. The pressure plate is fixed to the negative electrode base to press the dummy bars. A negative electrode bolt is provided on one side of the negative electrode base for connecting to the output negative terminal of the detection circuit. A fixing bolt is provided at the upper end of the pressure plate. The fixing bolt is made of a wear-resistant insulating material and is used to fix the negative electrode cooling mechanism, the microchannel laser, and the positive electrode cooling mechanism, thus sealing the laser. The negative electrode cooling mechanism cools the upper end of the microchannel laser, seals the microchannel laser, and supplies power to the negative electrode of the microchannel laser. The inlets and outlets of the positive electrode cooling mechanism, the microchannel laser, and the negative electrode cooling mechanism are all the same size and are vertically connected.

[0013] A set of vertical guide columns is also provided on one side of the positive electrode cooling mechanism. A guide hole II is provided at one end of the negative electrode base. The size of the guide hole II is adapted to the size of the guide column. The guide hole II cooperates with the guide column. The guide hole II, together with the negative electrode cooling mechanism, can move up and down along the guide column. A spring I is provided on the guide column. Both the guide column and the spring I are made of insulating material.

[0014] Preferably, the positive electrode base is located at the bottom of the device, and its bottom is provided with four fixing bolt holes I for fixing the positive electrode base.

[0015] Preferably, the upper end of the positive electrode base is provided with a guide hole I for fixing the guide column, the upper end of the positive electrode base is provided with four symmetrical fixing bolt holes II, and the positioning seat is provided with four fixing bolt holes III. The fixing bolt holes II and fixing bolt holes III are fixed by bolt connection, that is, the positive electrode base and the positioning seat are connected by bolts.

[0016] The positioning groove I of the positive electrode base is provided with an inlet I, an outlet I and a fixing hole I. Two positioning holes I are provided at one end of the positioning groove I for fixing the positioning column I.

[0017] Preferably, the dummy bar is a bar strip without a laser chip, and its structure and size are the same as those of the microchannel laser. The length and width of the positioning groove I are adapted to the size of the dummy bar. The dummy bar in the positioning groove I includes a positioning hole II, a water outlet II, a water inlet II, and a fixing hole II. The positioning post I passes through the positioning holes II of N dummy bars to position the dummy bar.

[0018] In this invention, the only difference between the dummy bar and the microchannel laser is that the dummy bar does not have a laser chip at the front end. The dummy bar is mainly used to increase the total flow rate of the coolant. Each additional dummy bar doubles the total flow rate of the coolant compared to the original flow rate of a single laser. The dummy bar is also used to cool the positive electrode cooling mechanism and the negative electrode cooling mechanism, thereby cooling the positive and negative terminals of the microchannel laser.

[0019] The reason why adding dummy coolants can increase the total flow rate of coolant is that dummy coolants and microchannel lasers have the same structure. There are interconnected microchannels between their internal inlets and outlets. When dummy coolants and lasers are stacked together, their inlets and outlets are connected. The internal microchannels of the dummy coolants and lasers are equivalent to parallel channels. Increasing the number of dummy coolants is equivalent to increasing the number of internal channels. The more internal channels there are, the larger the diameter of the internal channels. If the diameter of the internal channel of a single laser is 1, adding 5 dummy coolants will result in 5 + 1 = 6 microchannels. Under constant pressure, the flow rate through the microchannels of a single dummy coolant and a single laser remains the same, but the total flow rate is equivalent to 6 times the original. With the increase in the total flow rate of coolant, the heat generated by the laser is dissipated faster.

[0020] Preferably, the positioning seat is provided with a positioning groove III, and the positioning groove III is provided with an inlet III, an outlet III, a fixing hole III and a positioning protrusion. The positioning protrusion is used to position the microchannel laser. The microchannel laser is set in the positioning groove III. The length and width of the positioning groove III are adapted to the length and width of the microchannel laser. The height of the positioning groove III is less than the thickness of the microchannel laser. The bottom of the positioning seat is provided with a positioning hole III, which is used to cooperate with the positioning post I to achieve positioning of the positioning seat.

[0021] The microchannel laser includes a positioning hole III, an inlet IV, an outlet IV, and a fixing hole IV. The positioning hole III cooperates with the positioning protrusion to position the microchannel laser.

[0022] Preferably, the upper end of the negative electrode base is provided with four symmetrical fixing bolt holes IV, and the pressure plate is provided with four fixing bolt holes V. The fixing bolt holes IV and the fixing bolt holes V are fixed by bolt connection.

[0023] The positioning groove II of the negative electrode base is provided with an inlet V, an outlet V and a fixing hole V, and two positioning posts II are provided at one end of the positioning groove II.

[0024] Preferably, the dummy bar in the positioning groove II includes positioning hole IV, water outlet VI, water inlet VI, and fixing hole VI. The positioning column II passes through the positioning holes IV of the M dummy bars to position the dummy bar.

[0025] Preferably, the pressure plate is provided with fixing bolt hole VI, positioning hole V and fixing hole VII. Positioning hole V is used to cooperate with positioning post II to position the pressure plate. The pressure plate is used to seal the dummy bar in the negative electrode base.

[0026] Preferably, a spring II is provided on the fixing bolt above the pressure plate. The fixing bolt passes through fixing holes VII, VI, V, IV, III, II, and I in sequence. The sizes of each fixing hole are adapted. In this invention, the negative electrode cooling mechanism and the positive electrode cooling mechanism are equivalent to two independent structures. The pressure plate, dummy bar, and negative electrode base of the negative electrode cooling mechanism are fixed together by the four fixing bolt holes VI at the upper end of the pressure plate. The fixing holes of these three parts are concentric. The positioning seat, dummy bar, and positive electrode base of the positive electrode cooling mechanism are fixed together by screws through the four fixing bolt holes II at the upper end of the positive electrode base. The fixing holes of these three parts are concentric. The fixing bolt passes through the fixing holes of all components (i.e., fixing holes VII, VI, V, IV, III, II, and I). All components are fixed together by rotating the fixing bolt.

[0027] Preferably, both the positive electrode base and the positioning base are made of metal materials with good thermal and electrical conductivity;

[0028] The negative electrode base is made of a metal material with good thermal and electrical conductivity, and the pressure plate is made of an insulating material.

[0029] A method of using the above-mentioned microchannel laser single-bar rapid cooling detection device includes the following steps:

[0030] (1) Place the two sealing rings on the upper end of the water inlet I and water outlet I in the middle of the positive electrode cooling mechanism positioning seat;

[0031] (2) The microchannel laser is placed on the positioning groove III by the positioning hole Ⅲ and the positioning protrusion of the positioning seat. Sealing rings are placed on the inlet Ⅳ and outlet Ⅳ of the microchannel laser respectively.

[0032] (3) Press down gently on the negative electrode cooling mechanism. The negative electrode cooling mechanism moves down along the guide column, so that the negative electrode cooling mechanism contacts the upper end of the microchannel laser. Rotate the fixing bolt clockwise to fix the negative electrode cooling mechanism, the microchannel laser and the positive electrode cooling mechanism together.

[0033] (4) Open the coolant inlet and return valves. Cooling heat enters the positive electrode cooling mechanism, microchannel laser and negative electrode cooling mechanism through the positive electrode base inlet I. Coolant passes through the dummy bar and the microchannel inside the microchannel laser, so that the microchannel laser is cooled down quickly. Finally, the coolant is discharged through outlet I.

[0034] (5) After the temperature of the microchannel laser drops to a certain value (temperature gauges are installed on both the coolant inlet and return main pipes, and the temperature of the microchannel laser can be obtained from the temperature gauge readings), the microchannel laser is powered on for testing.

[0035] (6) After the test is completed, close the inlet valve to stop the input of coolant and drain all the coolant from the device;

[0036] (7) Rotate the fixing bolt counterclockwise. Spring I pushes the negative electrode cooling mechanism to move upward and reset. Spring I is a compression spring. Reset here means that the spring returns to its natural length. At this time, the negative electrode cooling mechanism moves to the upper end of the guide column and the negative electrode cooling mechanism is completely separated from the microchannel laser. Spring II pushes the fixing bolt to reset and return to its natural state. The fixing bolt moves to the top. At this time, the lower end of the fixing bolt is completely separated from the microchannel laser.

[0037] The advantage of this automatic reset step is that after each test, the negative electrode cooling mechanism and fixing bolts automatically move to the same position, making it convenient to replace the microchannel laser from the device. Before testing, when placing the microchannel laser, and after testing, when removing the laser, the negative electrode cooling mechanism and fixing bolts must be completely separated from the microchannel laser before the microchannel laser can be placed or removed. With the automatic reset function, manual separation is no longer required. Automatic reset reduces operation steps and improves production efficiency.

[0038] (8) Take out the microchannel laser after the test is completed and complete the rapid cooling test of the microchannel laser.

[0039] For any aspects not covered in this invention, please refer to existing technologies.

[0040] The beneficial effects of this invention are as follows:

[0041] This invention features a simple structure, convenient operation, and high production efficiency. It enables rapid fixation of microchannel lasers and automatic device reset. When cooling a microchannel laser using a single bar, this invention not only cools the laser itself but also cools the positive and negative electrodes, resulting in a more uniform temperature distribution and improved laser detection accuracy. This device achieves rapid cooling without increasing excessive pressure by increasing the total flow rate of the coolant through the number of dummy bars. Using this device for single-bar laser cooling increases the cooling rate by over 80%, significantly improving single-bar detection production efficiency. Furthermore, this device solves the problem of laser failure due to excessive coolant pressure, increasing the laser detection pass rate by over 5%. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the microchannel laser single-bar rapid cooling detection device of the present invention. Figure 1 ;

[0043] Figure 2 This is a schematic diagram of the microchannel laser single-bar rapid cooling detection device of the present invention. Figure 2 ;

[0044] Figure 3 This is a schematic diagram of the positive electrode base of the present invention;

[0045] Figure 4 This is a schematic diagram of the internal structure of the positive electrode cooling mechanism of the present invention;

[0046] Figure 5 This is a schematic diagram of the positioning seat of the present invention;

[0047] Figure 6 This is a schematic diagram of the bottom structure of the positioning seat of the present invention;

[0048] Figure 7 This is a schematic diagram of the negative electrode base of the present invention;

[0049] Figure 8 This is a schematic diagram of the microchannel laser of the present invention;

[0050] Figure 9 This is a schematic diagram showing the cooperation relationship between the microchannel laser and the positive electrode cooling mechanism of the present invention;

[0051] Among them, 1-positive electrode cooling mechanism, 2-negative electrode cooling mechanism, 3-microchannel laser, 4-fixing bolt, 5-spring II, 6-positive electrode base, 7-positioning seat, 8-negative electrode base, 9-pressure plate, 10-positive electrode bolt, 11-guide post, 12-spring I, 13-negative electrode bolt, 14-positioning groove I, 15-inlet I, 16-fixing hole I, 17-outlet I, 18-positioning hole I, 19-fixing bolt hole II, 20-guide hole I, 21-fixing bolt hole Ⅰ, 22-False bar, 23-Positioning pin Ⅰ, 24-Positioning groove Ⅲ, 25-Positioning protrusion, 26-Fixing bolt hole Ⅲ, 27-Positioning hole Ⅲ, 28-Positioning pin Ⅱ, 29-Guide hole Ⅱ, 30-Inlet Ⅳ, 31-Fixing hole Ⅳ, 32-Outlet Ⅳ, 33-Positioning hole Ⅲ, 34-Positioning groove Ⅱ, 35-Inlet Ⅲ, 36-Outlet Ⅲ, 37-Fixing hole Ⅲ, 38-Fixing bolt hole Ⅳ, 39-Inlet Ⅴ, 40-Outlet Ⅴ, 41-Fixing hole Ⅴ. Detailed implementation method:

[0052] To make the technical problems, technical solutions and advantages of the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments. However, this description is not limited thereto. All aspects not described in detail in the present invention are based on conventional techniques in the field.

[0053] Example 1:

[0054] A microchannel laser single-bar rapid cooling detection device, such as Figure 1-9 As shown, it includes a positive electrode cooling mechanism 1, a microchannel laser 3, and a negative electrode cooling mechanism 2;

[0055] The positive electrode cooling mechanism 1 includes a positive electrode base 6 and a positioning seat 7. The positive electrode base 6 is provided with a positioning groove I 14, and N dummy bars 22 are provided in the positioning groove I 14, where N is 5. The positive electrode base 6 is mainly used to fix the dummy bars 22. The positioning seat 7 is fixed on the positive electrode base 6 and is used to press the dummy bars 22 and position the microchannel laser 3. A positive electrode bolt 10 is provided on one side of the positive electrode base 6 for connecting to the positive output terminal of the detection circuit.

[0056] The upper end of the positioning seat 7 is used to position the microchannel laser, and the lower end of the positioning seat 7 is used to fix and seal the dummy bar placed in the positive electrode base.

[0057] The positioning seat 7 of the positive electrode cooling mechanism 1 is used to position the microchannel laser 3, cool the lower positive electrode area of ​​the microchannel laser 3, and supply power to the positive electrode of the microchannel laser.

[0058] The negative electrode cooling mechanism 2 includes a negative electrode base 8 and a pressure plate 9. The negative electrode base 8 has a positioning groove II 34, and M dummy bars 22 are installed within the positioning groove II 34, where M = N = 5. The pressure plate 9 is fixed to the negative electrode base 8 to press the dummy bars 22. A negative electrode bolt 13 is installed on one side of the negative electrode base 8 for connecting to the output negative terminal of the detection circuit. A fixing bolt 4 is installed at the upper end of the pressure plate 9. The fixing bolt 4 is made of a wear-resistant insulating material and is used to fix the negative electrode cooling mechanism 2, the microchannel laser 3, and the positive electrode cooling mechanism 1, thus sealing the laser. The negative electrode cooling mechanism 2 cools the upper end of the microchannel laser, seals the microchannel laser, and supplies power to the negative electrode of the microchannel laser. The inlets and outlets of the positive electrode cooling mechanism 1, the microchannel laser 3, and the negative electrode cooling mechanism 2 are all the same size and are vertically connected.

[0059] A set of vertical guide columns 11 is also provided on one side of the positive electrode cooling mechanism 1. A guide hole II 29 is provided at one end of the negative electrode base 8. The size of the guide hole II 29 is adapted to the size of the guide column 11. The guide hole II 29 cooperates with the guide column 11. The guide hole II 29 and the negative electrode cooling mechanism 2 can move up and down along the guide column 11. A spring I 12 is provided on the guide column 11. The guide column 11 and the spring I 12 are both made of insulating material.

[0060] Example 2:

[0061] A microchannel laser single-bar rapid cooling detection device is provided, with the structure as described in Example 1, except that the positive electrode base 6 is located at the bottom of the device, and four fixing bolt holes I21 are provided at its bottom for fixing the positive electrode base.

[0062] Example 3:

[0063] A microchannel laser single-bar rapid cooling detection device is provided, with the structure as described in Embodiment 2. The difference is that a guide hole I20 is provided on one side of the upper end of the positive electrode base 6 for fixing the guide post 11. Four symmetrical fixing bolt holes II19 are provided on the upper end of the positive electrode base 6, and four fixing bolt holes III26 are provided on the positioning seat 7. The fixing bolt holes II19 and fixing bolt holes III26 are fixed by bolt connection, that is, the positive electrode base and the positioning seat are connected by bolts.

[0064] The positioning groove I14 of the positive electrode base 6 is provided with an inlet I15, an outlet I17 and a fixing hole I16. Two positioning holes I18 are provided at one end of the positioning groove I14 for fixing the positioning column I23.

[0065] Example 4:

[0066] A microchannel laser single-bar rapid cooling detection device is provided, with the structure described in Example 3. The difference is that the dummy bar 22 is a bar strip without a laser chip, and its structure and size are the same as those of the microchannel laser 3. The length and width of the positioning groove I14 are adapted to the size of the dummy bar 22. The dummy bar in the positioning groove I14 includes a positioning hole II, a water outlet II, a water inlet II, and a fixing hole II. The positioning post I23 passes through the positioning holes II of N dummy bars to position the dummy bars.

[0067] In this invention, the only difference between the dummy bar and the microchannel laser is that the dummy bar does not have a laser chip at the front end. The dummy bar is mainly used to increase the total flow rate of the coolant. Each additional dummy bar doubles the total flow rate of the coolant compared to the original flow rate of a single laser. The dummy bar is also used to cool the positive electrode cooling mechanism and the negative electrode cooling mechanism, thereby cooling the positive and negative terminals of the microchannel laser.

[0068] The reason why adding dummy coolants can increase the total flow rate of coolant is that dummy coolants and microchannel lasers have the same structure. There are interconnected microchannels between their internal inlets and outlets. When dummy coolants and lasers are stacked together, their inlets and outlets are connected. The internal microchannels of the dummy coolants and lasers are equivalent to parallel channels. Increasing the number of dummy coolants is equivalent to increasing the number of internal channels. The more internal channels there are, the larger the diameter of the internal channels. If the diameter of the internal channel of a single laser is 1, adding 5 dummy coolants will result in 5 + 1 = 6 microchannels. Under constant pressure, the flow rate through the microchannels of a single dummy coolant and a single laser remains the same, but the total flow rate is equivalent to 6 times the original. With the increase in the total flow rate of coolant, the heat generated by the laser is dissipated faster.

[0069] Example 5:

[0070] A microchannel laser single-bar rapid cooling detection device is provided, with the structure as described in Embodiment 4, except that the positioning seat 7 is provided with a positioning groove Ⅲ24, and the positioning groove Ⅲ24 is provided with an inlet Ⅲ35, an outlet Ⅲ36, a fixing hole Ⅲ37 and a positioning protrusion 25. The positioning protrusion 25 is used to position the microchannel laser 3. The microchannel laser 3 is set in the positioning groove Ⅲ24. The length and width of the positioning groove Ⅲ24 are adapted to the length and width of the microchannel laser 3. The height of the positioning groove Ⅲ24 is less than the thickness of the microchannel laser 3. The bottom of the positioning seat 7 is provided with a positioning hole Ⅲ27, which is used to cooperate with the positioning post Ⅰ23 to realize the positioning of the positioning seat 7.

[0071] The microchannel laser 3 includes a positioning hole Ⅲ33, an inlet Ⅳ30, an outlet Ⅳ32, and a fixing hole Ⅳ31. The positioning hole Ⅲ33 cooperates with the positioning protrusion 25 to achieve the positioning of the microchannel laser.

[0072] Example 6:

[0073] A microchannel laser single bar rapid cooling detection device, the structure is as described in Example 5, except that the upper end of the negative electrode base 8 is provided with four symmetrical fixing bolt holes Ⅳ38, and the pressure plate 9 is provided with four fixing bolt holes Ⅴ. The fixing bolt holes Ⅳ38 and fixing bolt holes Ⅴ are fixed by bolt connection.

[0074] The negative electrode base 8 has an inlet V39, an outlet V40 and a fixing hole V41 inside the positioning groove II34, and two positioning posts II28 are provided at one end of the positioning groove II34.

[0075] Example 7:

[0076] A microchannel laser single bar rapid cooling detection device is provided, with the structure described in Example 6. The difference is that the dummy bar in the positioning groove II 34 includes positioning hole IV, water outlet VI, water inlet VI, and fixing hole VI. The positioning column II 28 passes through the positioning holes IV of the five dummy bars to position the dummy bar.

[0077] Example 8:

[0078] A microchannel laser single bar rapid cooling detection device, the structure is as described in embodiment 7, except that the pressure plate 9 is provided with fixing bolt hole VI, positioning hole V and fixing hole VII. Positioning hole V is used to cooperate with positioning post II 28 to realize the positioning of the pressure plate. The pressure plate is used to seal the dummy bar in the negative electrode base.

[0079] A spring II5 is installed on the fixing bolt above the pressure plate 9. The fixing bolt 4 passes through fixing holes VII, VI, V41, IV31, III37, II, and I16 in sequence. The sizes of each fixing hole are adapted. In this invention, the negative electrode cooling mechanism 8 and the positive electrode cooling mechanism 6 are equivalent to two independent structures. The pressure plate, dummy bar, and negative electrode base of the negative electrode cooling mechanism are fixed together by the four fixing bolt holes VI at the upper end of the pressure plate. The fixing holes of these three parts are concentric. The positioning seat, dummy bar, and positive electrode base of the positive electrode cooling mechanism are fixed together by screws through the four fixing bolt holes II19 at the upper end of the positive electrode base. The fixing holes of these three parts are concentric. The fixing bolt passes through the fixing holes of all components (i.e., fixing holes VII, VI, V, IV, III, II, and I). All components are fixed together by rotating the fixing bolt.

[0080] Example 9:

[0081] A microchannel laser single-bar rapid cooling detection device, the structure of which is as described in Example 8, except that the positive electrode base 6 and the positioning base 7 are both made of metal with good thermal and electrical conductivity.

[0082] The negative electrode base 8 is made of a metal material with good thermal and electrical conductivity, and the pressure plate 9 is made of insulating material.

[0083] Example 10:

[0084] A method for using a single-bar rapid cooling detection device for a microchannel laser includes the following steps:

[0085] (1) Place the two sealing rings on the upper end of the water inlet I15 and water outlet I17 in the middle of the positioning seat of the positive electrode cooling mechanism, respectively;

[0086] (2) The microchannel laser is placed on the positioning groove III24 through the positioning hole Ⅲ33 and the positioning protrusion 25 of the positioning seat. Sealing rings are placed on the microchannel laser inlet Ⅳ30 and outlet Ⅳ32 respectively.

[0087] (3) Press down gently on the negative electrode cooling mechanism 2. The negative electrode cooling mechanism 2 moves down along the guide column 11 so that the negative electrode cooling mechanism 2 contacts the upper end of the microchannel laser 3. Rotate the fixing bolt 4 clockwise so that the negative electrode cooling mechanism 2, the microchannel laser 3 and the positive electrode cooling mechanism 1 are combined and fixed together.

[0088] (4) Open the coolant inlet and return valves. The cooling heat enters the positive electrode cooling mechanism, microchannel laser and negative electrode cooling mechanism through the positive electrode base inlet I15. The coolant passes through the dummy bar and the microchannel inside the microchannel laser, so that the microchannel laser is cooled down quickly. The coolant is finally discharged through the outlet I17.

[0089] (5) After the temperature of the microchannel laser drops to a certain value (temperature gauges are installed on both the coolant inlet and return main pipes, and the temperature of the microchannel laser can be obtained from the temperature gauge readings), the microchannel laser is powered on for testing.

[0090] (6) After the test is completed, close the inlet valve to stop the input of coolant and drain all the coolant from the device;

[0091] (7) Rotate the fixing bolt 4 counterclockwise. Spring I12 pushes the negative electrode cooling mechanism to move upward and reset. Spring I12 is a compression spring. The reset here means that the spring returns to its natural length. At this time, the negative electrode cooling mechanism moves to the upper end of the guide column and the negative electrode cooling mechanism is completely separated from the microchannel laser. Spring II5 pushes the fixing bolt to reset and return to its natural state. The fixing bolt moves to the top. At this time, the lower end of the fixing bolt is completely separated from the microchannel laser.

[0092] The advantage of this automatic reset step is that after each test, the negative electrode cooling mechanism and fixing bolts automatically move to the same position, making it convenient to replace the microchannel laser from the device. Before testing, when placing the microchannel laser, and after testing, when removing the laser, the negative electrode cooling mechanism and fixing bolts must be completely separated from the microchannel laser before the microchannel laser can be placed or removed. With the automatic reset function, manual separation is no longer required. Automatic reset reduces operation steps and improves production efficiency.

[0093] (8) Take out the microchannel laser after the test is completed and complete the rapid cooling test of the microchannel laser.

[0094] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A micro-channel laser single-bar rapid cooling detection device, characterized in that, The positive electrode cooling mechanism, the micro-channel laser and the negative electrode cooling mechanism are included. The positive electrode cooling mechanism includes a positive electrode base and a positioning seat, the positive electrode base is provided with a positioning groove I, the positioning groove I is provided with N dummy bars, N is a natural number greater than 1, the positioning seat is fixed on the positive electrode base and used for pressing the dummy bars and positioning the micro-channel laser, and the positive electrode base is provided with a positive electrode bolt on one side and used for being connected with an output positive electrode end of a detection circuit. The positioning seat of the positive electrode cooling mechanism is positioned with the micro-channel laser. The negative electrode cooling mechanism includes a negative electrode base and a pressing plate, the negative electrode base is provided with a positioning groove II, the positioning groove II is provided with M dummy bars, M is a natural number greater than 1, the pressing plate is fixed on the negative electrode base and used for pressing the dummy bars, the negative electrode base is provided with a negative electrode bolt on one side and used for being connected with an output negative electrode end of a detection circuit, and the pressing plate is provided with a fixing bolt on an upper end and used for fixing the negative electrode cooling mechanism, the micro-channel laser and the positive electrode cooling mechanism. The positive electrode cooling mechanism is further provided with a vertical group of guide columns on one side, the negative electrode base is provided with a guide hole II at one end, the size of the guide hole II is adapted to the size of the guide column, the guide hole II is matched with the guide column, the guide hole II and the negative electrode cooling mechanism can move up and down along the guide column, the guide column is provided with a spring I, and the guide column and the spring I are made of insulating materials.

2. The micro-channel laser single-bath rapid cooling detection device according to claim 1, characterized in that, The positive electrode base is located at the lowermost end of the device, and the bottom of the positive electrode base is provided with four fixing bolt holes I for fixing the positive electrode base.

3. The micro-channel laser single-bath rapid cooling detection device according to claim 2, characterized in that, The upper end of the positive electrode base is provided with a guide hole I on one side for fixing the guide column, and the upper end of the positive electrode base is provided with four symmetrical fixing bolt holes II, the positioning seat is provided with four fixing bolt holes III, and the fixing bolt holes II and the fixing bolt holes III are fixed by bolt connection. The positioning groove I of the positive electrode base is internally provided with a water inlet I, a water outlet I and a fixing hole I, and two positioning holes I are arranged at one end of the positioning groove I for fixing a positioning column I.

4. The micro-channel laser single-bath rapid cooling detection device according to claim 3, characterized in that, The dummy bar is a bar without a laser chip, the structure and size of the dummy bar are the same as those of the micro-channel laser, the length and width of the positioning groove I are adapted to the size of the dummy bar, the dummy bar in the positioning groove I includes a positioning hole II, a water outlet II, a water inlet II and a fixing hole II, and the positioning column I passes through the positioning holes II of the N dummy bars to position the dummy bars.

5. The micro-channel laser single-bath rapid cooling detection device according to claim 4, characterized in that, The positioning seat is provided with a positioning groove III, the positioning groove III is internally provided with a water inlet III, a water outlet III, a fixing hole III and a positioning protrusion, the positioning protrusion is used for positioning the micro-channel laser, the micro-channel laser is arranged in the positioning groove III, the length and width of the positioning groove III are adapted to the length and width of the micro-channel laser, the height of the positioning groove III is less than the thickness of the micro-channel laser, and the bottom of the positioning seat is provided with a positioning hole III for cooperating with the positioning column I to realize positioning of the positioning seat. The micro-channel laser includes a positioning hole III, a water inlet IV, a water outlet IV and a fixing hole IV, and the positioning hole III is matched with the positioning protrusion to realize positioning of the micro-channel laser.

6. The micro-channel laser single-bath rapid cooling detection device according to claim 5, characterized in that, The upper end of the negative electrode base is also provided with four symmetrical fixing bolt holes IV, and the pressing plate is provided with four fixing bolt holes V, and the fixing bolt holes IV and the fixing bolt holes V are fixed by bolt connection; The positioning groove II of the negative electrode base is internally provided with a water inlet V, a water outlet V and a fixing hole V, and two positioning columns II are arranged at one end of the positioning groove II.

7. The micro-channel laser single-bath rapid cooling detection device according to claim 6, characterized in that, The false bar in the positioning groove II comprises a positioning hole IV, a water outlet VI, a water inlet VI and a fixing hole VI, and the positioning column II passes through the positioning hole IV of the M false bars to position the false bar.

8. The micro-channel laser single-bath rapid cooling detection device according to claim 7, characterized in that, The pressing plate is provided with a fixing bolt hole VI, a positioning hole V and a fixing hole VII, and the positioning hole V is used for cooperating with the positioning column II to realize positioning of the pressing plate; The fixing bolt above the pressing plate is provided with a spring II, and the fixing bolt sequentially passes through the fixing hole VII, the fixing hole VI, the fixing hole V, the fixing hole IV, the fixing hole III, the fixing hole II and the fixing hole I.

9. The micro-channel laser single-bath rapid cooling detection device according to claim 8, characterized in that, The materials of the positive electrode base and the positioning seat are metal materials with good heat conduction and electrical conductivity. The negative electrode base is a metal material with good heat conduction and electrical conductivity, and the pressing plate is an insulating material.

10. The method of using the microchannel laser monobath rapid cooling detection device of claim 9, wherein, The method comprises the following steps: (1) Place two sealing rings on the water inlet I and the upper end of the water outlet I in the middle of the positive electrode cooling mechanism positioning seat respectively; (2) After the micro-channel laser is placed on the positioning groove III by cooperating the positioning hole III with the positioning protrusion of the positioning seat, the micro-channel laser water inlet IV and the water outlet IV are placed with sealing rings; (3) Press the negative electrode cooling mechanism downward, and the negative electrode cooling mechanism moves downward along the guide column, so that the negative electrode cooling mechanism contacts the upper end of the micro-channel laser, and the fixed bolt is rotated clockwise, so that the negative electrode cooling mechanism, the micro-channel laser and the positive electrode cooling mechanism are fixed together; (4) Open the cooling liquid inlet and return valve, and the cooling heat enters the positive electrode cooling mechanism, the micro-channel laser and the negative electrode cooling mechanism through the positive electrode base water inlet I, the cooling liquid passes through the false bar and the internal micro-channel of the micro-channel laser, so that the micro-channel laser is rapidly cooled, and the cooling liquid is finally discharged through the water outlet I; (5) After the temperature of the micro-channel laser decreases to a certain value, the micro-channel laser is detected by power supply; (6) After the detection is completed, the inlet valve is closed to stop the input of the cooling liquid, and all the cooling liquid in the device is discharged; (7) Rotate the fixed bolt counterclockwise, the spring I pushes the negative electrode cooling mechanism to move upward to reset, the spring II pushes the fixed bolt to reset to the natural state, and the fixed bolt moves to the top, at this time, the lower end of the fixed bolt is completely separated from the micro-channel laser; (8) Take out the detected micro-channel laser, and complete the rapid cooling detection work of the micro-channel laser.

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