Testing device for light-emitting module of laser

Abstract

The utility model provides a testing device of a laser light-emitting module, the testing device comprises a testing tool, the testing tool comprises a cooling plate, at least two electrode holders arranged in pairs and at least two electrode clamps arranged in pairs, and the at least two electrode holders are arranged on the same surface of the cooling plate at intervals; the at least two electrode clamps are rotatably connected with the at least two electrode holders through elastic pieces respectively, and the clamping ends of the at least two electrode clamps are oppositely arranged and jointly form a clamping opening, so that the light-emitting module is clamped in the test area of the cooling plate. The testing device provided by the embodiment of the utility model is simple in structure, convenient to operate and wide in application, and can realize the clamping, power supply and cooling functions of the light-emitting module at the same time, thereby facilitating the realization of defect detection of the light-emitting module before a product is packaged, and achieving the technical effects of reducing the reworking frequency and saving the production time and the manufacturing cost.

Description

Technical Field

[0001] The present application relates to the field of laser technology, and in particular to a testing device for a laser light emitting module. Background Art

[0002] At present, high-power laser bar products have been widely used in various fields such as industrial production and daily life. Therefore, in order to ensure the performance of laser bar products, corresponding screening, testing, aging and other processes are required. Utility Model Content

[0003] The inventor of the present application found in the research that in the related technologies, most of the above-mentioned screening, testing, aging and other related processes can only be carried out after the laser body is packaged, and there is a lack of testing equipment for the light-emitting module. Therefore, the existing solutions cannot detect the defects of the light-emitting module in advance, and when the light-emitting module has defects, it often causes the entire product to be scrapped or needs to be reworked, thereby increasing production time and manufacturing costs.

[0004] In response to the above problems, the present application discloses a testing device for a laser light-emitting module to achieve the technical effect of clamping the light-emitting module and powering it, which helps to test the defects of the light-emitting module before the product is packaged, reducing the number of reworks, saving time and costs.

[0005] To achieve the above-mentioned object, in a first aspect of the present application, a test device for a laser light-emitting module is provided, comprising a test fixture, wherein the test fixture comprises: a cooling plate, at least two electrode holders arranged in pairs, and at least two electrode clamps arranged in pairs,

[0006] The at least two electrode seats are arranged at intervals on the same surface of the cooling plate;

[0007] The at least two electrode clamps are rotatably connected to the at least two electrode seats through elastic members respectively, and the clamping ends of the at least two electrode clamps are arranged facing each other and together form a clamping opening, so that the light emitting module is clamped in the test area of ​​the cooling plate.

[0008] Optionally, the test fixture comprises: at least two insulating films arranged in pairs,

[0009] The at least two insulating films are respectively arranged at contact positions between the at least two electrode holders and the cooling plate.

[0010] Optionally, the at least two electrode clamps are each provided with a first connecting portion, and the at least two electrode holders are each provided with a second connecting portion.

[0011] The first connecting portion of each electrode clip is respectively connected to the second connecting portion of the corresponding electrode holder;

[0012] The first connecting portion and the second connecting portion are fixed by a first connecting member, and the elastic member is sleeved on the first connecting member, so that the two electrode clamps have a clamping state and a loosening state.

[0013] Optionally, the at least two electrode seats are provided with strip-shaped holes.

[0014] The length direction of the strip-shaped hole is consistent with the adjustment direction of the at least two electrode seats, and the adjustment direction of the at least two electrode seats is the movement direction of the at least two electrode seats approaching or moving away from each other;

[0015] The at least two electrode seats are movably mounted on the cooling plate through the strip holes respectively.

[0016] Optionally, the test fixture comprises: a second connecting piece,

[0017] The second connecting member passes through the strip holes on the two electrode holders respectively and is fixedly connected to the mounting holes on the cooling plate;

[0018] Both ends of the second connecting member are respectively sleeved with insulating sleeves for insulating the electrode seat and the cooling plate.

[0019] Optionally, the test fixture comprises: a fixing seat, and a hinge assembly, wherein the hinge assembly comprises a first hinge and a second hinge.

[0020] The first hinge is connected to the cooling plate, the second hinge is connected to the fixing seat, and the first hinge is rotatably connected to the second hinge so that the cooling plate rotates relative to the fixing seat; wherein,

[0021] When the cooling plate is flipped to the first working position, the cooling plate remains in a vertical position relative to the fixing seat;

[0022] When the cooling plate is flipped to the second working position, the cooling plate maintains a horizontal state relative to the fixing seat.

[0023] Optionally, the test fixture comprises: a first support block,

[0024] When the cooling plate is flipped to the first working position, the first supporting block is placed on the fixing seat and is arranged against the other side of the cooling plate away from the two electrode clamps;

[0025] And / or, the test fixture comprises: a second support block,

[0026] The second supporting block is arranged on an end of the fixing seat away from the second hinge, or is arranged on an end of the cooling plate away from the first hinge.

[0027] Optionally, the cooling plate is provided with a liquid inlet and a liquid outlet, and a cooling channel for circulating the cooling liquid is provided inside the cooling plate.

[0028] One end of the cooling channel is connected to the liquid inlet, and the other end of the cooling channel is connected to the liquid outlet;

[0029] The setting height of the liquid inlet is different from the setting height of the liquid outlet.

[0030] Optionally, it also includes: a test platform and an optical test instrument,

[0031] The testing tool and the optical testing instrument are both placed on the testing platform, and the optical testing instrument is arranged facing the testing tool to test the light emitting module.

[0032] A second aspect of the present application provides a method for testing a laser light emitting module, which is performed using a testing device for a laser light emitting module as described in any one of the first aspects above, and the testing method includes:

[0033] Step S1, placing a test tool on a test platform, and placing an optical test instrument in front of the test tool;

[0034] Step S2, turning over the cooling plate in the test fixture to a second working position;

[0035] Step S3, loosening the second connecting piece in the test fixture, and adjusting the relative distance between at least two electrode seats in the test fixture, and tightening the second connecting piece after the at least two electrode seats are adjusted to the expected positions;

[0036] Step S4, pressing at least two electrode clamps in the test fixture to make the at least two electrode clamps in a loose state, and placing the light-emitting module in the test area of ​​the cooling plate; then loosening the at least two electrode clamps and resetting the at least two electrode clamps to a clamped state, so as to clamp the light-emitting module with the clamping opening formed by the at least two electrode clamps;

[0037] Step S5, turning the cooling plate over to the first working position, and placing a first supporting block on the fixing seat in the testing tool;

[0038] Step S6, passing a coolant into the cooling plate, and connecting the at least two electrode clamps to the positive and negative electrodes of a power source respectively, and starting the optical testing instrument to begin testing;

[0039] Step S7, taking out the current light-emitting module, and repeating steps S2 to S6 to test another group of light-emitting modules.

[0040] The advantages and beneficial effects of the present application are as follows: a test device for a laser light-emitting module is provided, the test device includes a test fixture, the test fixture includes: a cooling plate, at least two electrode holders arranged in pairs, and at least two electrode clamps arranged in pairs; by arranging the electrode holders at intervals on the same surface of the cooling plate and connecting the electrode clamps and the electrode holders with elastic members, the clamping ends of the at least two electrode clamps can together form a clamping opening, and the light-emitting module can be clamped in the test area on the cooling plate, the structure is simple, the operation is convenient, and it is more conducive to the clamping and positioning of the light-emitting module; by passing coolant into the cooling plate and by energizing the electrode clamps, the power supply and heat dissipation functions of the light-emitting module are realized, and preparation conditions are provided for subsequent testing processes, so that defect detection of the light-emitting module can be realized before the product is packaged, thereby achieving the technical effect of reducing the number of rework times, saving time and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0042] Figure 1 This is one of the structural schematic diagrams of a testing device for a laser light-emitting module in an embodiment of the present application in a first working position state;

[0043] Figure 2 This is a second structural schematic diagram of a testing device for a laser light emitting module in an embodiment of the present application in a first working position state;

[0044] Figure 3 This is a third structural schematic diagram of a test device for a laser light emitting module in an embodiment of the present application in a first working position state;

[0045] Figure 4 This is a fourth structural schematic diagram of a test device for a laser light emitting module in an embodiment of the present application in a first working position state (the electrode clamp is not shown);

[0046] Figure 5 This is a schematic diagram of the installation of the electrode clamp and the electrode holder in one embodiment of the present application;

[0047] Figure 6 This is one of the structural schematic diagrams of a testing device for a laser light emitting module in an embodiment of the present application in a second working position state;

[0048] Figure 7This is a second structural schematic diagram of a test device for a laser light emitting module in an embodiment of the present application in a second working position state (the electrode clamp is not shown);

[0049] Figure 8 This is a schematic diagram of the structure of the cooling channel inside the cooling plate in one embodiment of the present application;

[0050] Fig. 9 A schematic diagram of the position of a testing device for a laser light emitting module in an embodiment of the present application during testing;

[0051] Fig.10 A schematic diagram of a process flow of a method for testing a laser light emitting module in one embodiment of the present application;

[0052] In the figure: 1, cooling plate; 2, electrode holder; 3, electrode clamp; 4, elastic member; 5, light emitting module; 6, insulating film; 7, first connecting member; 8, second connecting member; 9, insulating sleeve; 10, fixing seat; 16, first hinge; 17, second hinge; 18, first support block; 19, second support block; 20, test platform; 30, optical test instrument;

[0053] 11. Test area; 12. Mounting hole; 13. Liquid inlet (including pipe joint); 14. Liquid outlet (including pipe joint); 15. Cooling channel; 21. First electrode holder; 22. Second electrode holder; 23. Second connecting part; 24. Strip hole; 31. First electrode clamp; 32. Second electrode clamp; 33. Clamping end; 34. First connecting part. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0055] The technical concept of the present application is to design a test device for a laser light-emitting module, wherein at least two electrode clamps arranged in pairs are respectively installed on electrode seats, and the light-emitting module is clamped in a test area on a cooling plate through the cooperation between the two electrode clamps. At the same time, by changing the relative distance between the two electrode seats, the size of the clamping opening formed by the two electrode clamps can be changed, thereby not only achieving the clamping and positioning functions of light-emitting modules of different sizes, but also providing power and heat dissipation for the light-emitting modules, thereby providing preparation conditions for subsequent testing, aging and other processes, and achieving the technical purpose of detecting defects in the light-emitting module before product packaging.

[0056] It should be noted that the laser light-emitting module in the embodiment of the present application refers to the light-emitting module unit of the laser, and the testing device provided in the embodiment of the present application is mainly used to detect the light-emitting module of the semiconductor laser.

[0057] For example, the light-emitting module may include an aluminum nitride plate, one or more bars, and multiple tungsten copper blocks. The aluminum nitride plate is covered with a copper layer (the outer layer may be further gold-plated), and the one or more bars and the multiple tungsten copper blocks are staggered on the aluminum nitride plate to form an array. For example, in an embodiment of the present application, the light-emitting module to be tested may include two tungsten copper blocks and one bar; for example, in an embodiment of the present application, the light-emitting module to be tested may include four tungsten copper blocks and three bars, that is, a bar is arranged between two adjacent tungsten copper blocks; of course, the present application does not limit the number of bars and tungsten copper blocks in the light-emitting module, nor does it limit the size of the light-emitting module.

[0058] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0059] In some embodiments of the present application, a test device for a laser light-emitting module is proposed, including a test fixture, the test fixture including: a cooling plate 1, at least two electrode seats 2 arranged in pairs, and at least two electrode clamps 3 arranged in pairs; it should be noted that the number of electrode seats 2 can be two, four, six, etc., and correspondingly, the number of electrode clamps 3 can also be two, four, six, etc.; in other words, the number of electrode seats 2 and electrode clamps 3 in the embodiments of the present application can be set to an even number, every two electrode seats 2 are arranged in pairs with each other, and every two electrode clamps 3 are arranged in pairs with each other; there is no limitation here.

[0060] For example, Figures 1 to 9 The figure shows a situation including two electrode holders 2 and two electrode clamps 3. Therefore, the technical solution of the present application will be described in detail below by taking two electrode holders and two electrode clamps as an example.

[0061] refer to Figures 1 to 4 As shown, the two electrode holders 2 are located on the same surface of the cooling plate 1 and are spaced apart on the left and right sides of the cooling plate 1; the two electrode clamps 3 are rotatably connected to the two electrode holders 2 through elastic members 4, respectively, and the clamping ends 33 of the two electrode clamps 3 are arranged facing each other and together form a clamping opening, so that the light-emitting module 5 is clamped in the test area 11 of the cooling plate 1.

[0062] For example, the test area 11 of the cooling plate 1 may be a side surface on which two electrode holders 2 are arranged. Figure 1 As shown, the test area 11 of the cooling plate 1 can be the middle of the above surface, which is more convenient to operate and has a better heat dissipation effect.

[0063] In some embodiments, in combination Figure 1 and Figure 4 As shown, the two electrode holders 2 include a first electrode holder 21 and a second electrode holder 22 spaced apart on the surface of the cooling plate 1, and may include, for example, the first electrode holder 21 located on the left side of the cooling plate 1 and the second electrode holder 22 located on the right side of the cooling plate 1. For example, the two electrode clamps 3 include a first electrode clamp 31 and a second electrode clamp 32, and the first electrode holder 21 and the second electrode holder 22 are arranged in pairs, which may be mirror-symmetrical; for example, the first electrode clamp 31 and the second electrode clamp 32 are arranged in pairs, which may be mirror-symmetrical. For example, the electrode clamp and the electrode holder can be arranged correspondingly (for example, arranged one by one); for example, the first electrode clamp 31 is rotatably connected to the first electrode holder 21, and the second electrode clamp 32 is rotatably connected to the second electrode holder 22. When the ends of the first electrode clamp 31 and the second electrode clamp 32 (the end away from the clamping end) are pressed, the first electrode clamp 31 and the second electrode clamp 32 can have two states of clamping and loosening under the action of the elastic member 4; at the same time, the clamping end 33 of the first electrode clamp 31 and the clamping end 33 of the second electrode clamp 32 are arranged facing each other and can form a clamping opening, so that the clamping end 33 can contact the light-emitting module 5, for example, contact the copper-clad surface of the aluminum nitride plate in the light-emitting module 5, and thereby achieve the clamping effect on the light-emitting module.

[0064] For example, the first electrode clamp 31 and the second electrode clamp 32 each have more than one clamping end 33, for example, Figure 1 The first electrode clamp 31 and the second electrode clamp 32 shown have two clamping ends 33, and can form two upper and lower clamping openings along the longitudinal direction to clamp and position the two light emitting modules 5. Of course, in this embodiment, there is no limitation on the number of clamping ends 33 of the electrode clamp and the number of light emitting modules 5 to be tested, and the clamping and fixing of a single or multiple groups of light emitting modules can be achieved by changing the size of the cooling plate, the electrode holder and the electrode clamp.

[0065] It can be seen that the testing device provided in the embodiment of the present application has a simple structure, is easy to operate, can be applied to light-emitting modules of different sizes and types, and is more conducive to mass production; at the same time, in the front-end process before the product is packaged, defect detection of the light-emitting module can be directly realized, thereby achieving the technical effect of reducing the number of rework times, saving time and costs.

[0066] like Figure 1 As shown, the first electrode clamp 31 in this embodiment is a negative electrode clamp (which can be connected to the negative pole of the power supply), and the second electrode clamp 32 is a positive electrode clamp (which can be connected to the positive pole of the power supply). Of course, the first electrode clamp 31 can also be set as a positive electrode clamp and the second electrode clamp 32 can be set as a negative electrode clamp. It is only necessary to ensure that the two electrode clamps are respectively connected to the positive and negative poles of the power supply, and there is no limitation here.

[0067] In at least one embodiment of the present application, Figure 1 and Figure 2 As shown, the test fixture includes: at least two insulating films 6 arranged in pairs, for example, the two insulating films 6 are respectively arranged at the contact positions of the two electrode holders 2 and the cooling plate 1, thereby achieving insulation between the two electrode holders 2 and the cooling plate 1. Of course, the number of insulating films 6 should be set to an even number and can be consistent with the number of electrode holders 2, and no specific limitation is made here.

[0068] In some preferred embodiments, the two electrode clamps 3 are provided with first connecting portions 34, and the two electrode holders 2 are provided with second connecting portions 23, and the first connecting portion 34 of each electrode clamp 3 is respectively connected to the second connecting portion 23 of the electrode holder 2 corresponding thereto; for example, the first connecting portions 34 of the two electrode clamps 3 may be arranged facing each other, or may be arranged alternately with each other; for example, the second connecting portions 23 of the two electrode holders 2 may be arranged facing each other, or may be arranged alternately with each other. For example, Figure 5 , a schematic diagram of the installation between the second electrode clamp 32 and the second electrode holder 22 in this embodiment is shown, wherein the first connecting portion 34 and the second connecting portion 23 are fixed by the first connecting member 7, and the elastic member 4 is sleeved on the first connecting member 7, so that one end of the elastic member 4 can contact the second electrode clamp 32, and the other end of the elastic member 4 can contact the second electrode holder 22. For example, the elastic member 4 can be a torsion spring, a spring or a spring sheet, Figure 5 The elastic member 4 is taken as a torsion spring as an example for description. For example, the first connecting member 7 can be at least one of a stud, a screw, a bolt, a rivet and a pin.

[0069] Since the first electrode holder 21 and the second electrode holder 22 in this embodiment are mirror-symmetrical, and the first electrode clamp 31 and the second electrode clamp 32 are mirror-symmetrical, the connection relationship between the first electrode clamp 31 and the first electrode holder 21 is the same as the connection relationship between the second electrode clamp 32 and the second electrode holder 22, and will not be elaborated here.

[0070] It can be seen that when the other end of the electrode clamp (the end away from the clamping end) is pressed by external force, the clamping ends 33 of the two electrode clamps 3 can be lifted up through the elastic force of the elastic member 4, and after the pressing stops, the elastic member 4 rebounds and resets, so that the clamping ends 33 of the two electrode clamps 3 can fall back, and then the two electrode clamps 3 have a loose state (clamping end lifted) and a clamping state (clamping end fallen back), which can conveniently realize the clamping, testing, power supply and replacement of the light-emitting module 5.

[0071] In at least one embodiment of the present application, Figure 4As shown, the two electrode holders 2 are provided with strip holes 24, and the length direction of the strip holes 24 is consistent with the adjustment direction of the two electrode holders 2, and the adjustment direction of the two electrode holders 2 is the movement direction of the two electrode holders 2 approaching or moving away from each other; the two electrode holders 2 are movably mounted on the cooling plate 1 through the strip holes 24 respectively. In this way, the distance adjustment between the two electrode holders 2 can be easily achieved to meet different test requirements. For example, in this embodiment, each electrode holder 2 is provided with three strip holes 24 in the horizontal direction (for simplicity, only one of the strip holes is marked). Of course, this application does not limit the number and position of the strip holes 24.

[0072] In at least one embodiment of the present application, the test fixture includes: a second connecting member 8, the second connecting member 8 passes through the strip holes 24 on the two electrode holders 2 respectively, and is fixedly connected to the mounting holes 12 on the cooling plate 1; both ends of the second connecting member 8 are respectively sleeved with insulating sleeves 9 for insulating the electrode holder 2 from the cooling plate 1. For example, the second connecting member 8 can be at least one of a stud, a screw, a bolt, a rivet, and a pin.

[0073] When the number of bars in the light-emitting module 5 is large, the size of the light-emitting module 5 also increases. Therefore, in this embodiment, in order to meet the testing requirements of different products, the position of the mounting hole 12 of the cooling plate 1 and the mounting position of the second connecting member 8 can remain unchanged, and by moving the electrode holder 2 and changing the relative position of the second connecting member 8 on the bar hole 24, it can adapt to light-emitting modules of different sizes; such a design can adjust the distance between the two electrode holders 2 to a suitable position, and then the two electrode holders 2 respectively drive the two electrode clamps 3 to move, and realize the variable adjustment of the clamping opening size, which can adapt to different light-emitting modules 5, and further improve the convenience of using the testing device.

[0074] In at least one embodiment of the present application, Figure 1 and Figure 3 As shown, the test fixture includes: a fixed base 10 and a hinge assembly, the hinge assembly includes a first hinge 16 and a second hinge 17, the first hinge 16 is connected to the cooling plate 1, the second hinge 17 is connected to the fixed base 10, and the first hinge 16 and the second hinge 17 are rotatably connected; that is, the connecting part of the first hinge 16 is connected to the cooling plate 1, the connecting part of the second hinge 17 is connected to the fixed base 10, and the rotating shaft end of the first hinge 16 is connected to the rotating shaft end of the second hinge 17, thereby allowing the cooling plate 1 to rotate relative to the fixed base 10, and further driving the light-emitting module 5 clamped between the electrode clamps to rotate relative to the fixed base 10.

[0075] When the cooling plate 1 is turned over to the first working position, the cooling plate 1 remains vertical relative to the fixing seat 10. Figures 1 to 4For example, in the first working position, the light emitting module 5 also maintains a vertical state relative to the fixing base 10 , and the light emitted by the light emitting module 5 can be emitted to the optical testing instrument, so as to implement the testing of the light emitting module 5 .

[0076] When the cooling plate 1 is turned over to the second working position, the cooling plate 1 remains horizontal relative to the fixing base 10. Figure 6 and Figure 7 For example, in the second working position, the light emitting module 5 also maintains a horizontal state relative to the fixing base 10, so that it is convenient to remove or replace the light emitting module 5. By providing the hinge assembly 10 and its cooperation with the fixing base 10 and the cooling plate 1, the practicality and ease of use of the testing device are further improved.

[0077] In at least one embodiment of the present application, the test fixture includes: a first support block 18, when the cooling plate 1 is flipped to the first working position, the first support block 18 is placed on the fixing seat 10, and is arranged against the other side of the cooling plate 1 away from the two electrode clamps 3. For example, the number of the first support blocks 18 can be one or more, which can support the cooling plate 1 to make it more stable, prevent the cooling plate 1 from flipping or falling during the test, and thus improve the test efficiency and accuracy.

[0078] In at least one embodiment of the present application, the test fixture includes: a second support block 19, the second support block 19 is arranged on the end of the fixing base 10 away from the second hinge 17 (such as Figure 3 As shown), or arranged on the cooling plate 1 at one end away from the first hinge 16 (not shown in the figure); Figure 6 As shown, when the cooling plate 1 is flipped to the second working position, the second support block 19 arranged on the fixed seat 10 contacts the other side of the cooling plate 1 (for example, the other side away from the two electrode clamps 3); or, when the cooling plate 1 is flipped to the second working position, the second support block 19 arranged on the cooling plate 1 contacts the fixed seat 10 to keep the cooling plate 1 stable.

[0079] In at least one embodiment of the present application, Figure 8 As shown, the cooling plate 1 is provided with a liquid inlet 13 and a liquid outlet 14, and a cooling channel 15 for circulating coolant is provided inside the cooling plate 1, one end of the cooling channel 15 is connected to the liquid inlet 13, and the other end of the cooling channel 15 is connected to the liquid outlet 14; wherein the setting height of the liquid inlet 13 is different from the setting height of the liquid outlet 14. By providing the cooling channel 15 and the corresponding liquid inlet 13 and liquid outlet 14 in the cooling plate 1, the cooling effect of the cooling plate 1 can be improved, thereby improving the stability of the test device.

[0080] For example, the liquid inlet 13 and the liquid outlet 14 may be located on the same side of the cooling plate 1. Figure 7 and Figure 8 As shown, the liquid inlet 13 and the liquid outlet 14 can be located on different sides of the cooling plate 1. For example, in some preferred embodiments, the cooling channel 15 is a Z-shaped channel, the liquid inlet 13 is arranged close to the second electrode clamp 32 (positive electrode clamp), the liquid outlet 14 is arranged close to the first electrode clamp 31 (negative electrode clamp), and the setting height of the liquid inlet 13 is lower than the setting height of the liquid outlet 14, thereby better improving the heat dissipation effect of the light-emitting module; of course, the above description of the cooling plate 1 is only an exemplary embodiment, and the present application does not limit the positions of the liquid inlet 13 and the liquid outlet 14, the shape and position of the cooling channel 15, etc.

[0081] In some embodiments, reference Fig. 9 As shown, the testing device also includes: a testing platform 20 and an optical testing instrument 30, both of which are placed on the testing platform 20. For example, the testing tool can maintain a suitable testing distance from the optical testing instrument 30, and the optical testing instrument 30 can be set facing the testing tool to test the light-emitting module 5 clamped by the testing tool.

[0082] In at least one embodiment of the present application, the test fixture can also be used in conjunction with the optical test instrument 30 according to a specific usage scenario. For example, the optical test instrument 30 includes but is not limited to a light absorbing plate, a power meter, etc.; for example, the light emitted by the light emitting module 5 clamped by the test fixture can be emitted to the optical test instrument 30, so that the light output quality of the light emitting module 5 can be observed through the light absorbing plate; for another example, the light output power of the light emitting module 5 can be tested through a power meter.

[0083] In another embodiment of the present application, a method for testing a laser light emitting module is provided, which is performed using a testing device for a laser light emitting module provided in any of the above embodiments. Fig.10 As shown, the test methods include:

[0084] Step S1, placing a test fixture on a test platform 20, and placing an optical test instrument 30 in front of the test fixture;

[0085] Step S2, turning over the cooling plate 1 in the test fixture to the second working position;

[0086] Step S3, loosening the second connecting member 8 in the test fixture, and adjusting the relative distance between at least two electrode holders 2 in the test fixture, and tightening the second connecting member 8 after at least two electrode holders 2 are adjusted to the expected positions;

[0087] Step S4, pressing at least two electrode clamps 3 in the test device to make the at least two electrode clamps 3 in a loose state, and placing the light emitting module 5 in the test area 11 of the cooling plate 1; then loosening the at least two electrode clamps 3, and making the at least two electrode clamps 3 reset to a clamping state, so as to clamp the light emitting module 5 with the clamping opening formed by the at least two electrode clamps 3;

[0088] Step S5, turning the cooling plate 1 over to the first working position, and placing the first supporting block 18 on the fixing seat 10 in the testing tool;

[0089] Step S6, passing the coolant into the cooling plate 1, and connecting at least two electrode clamps 3 to the positive and negative electrodes of the power supply respectively, and starting the optical testing instrument 30 to start the test;

[0090] Step S7, then press at least two electrode clamps 3 again to take out the current light emitting module 5, and repeat steps S2 to S6 to test another group of light emitting modules.

[0091] In this embodiment, the test fixture can be used in conjunction with an optical test instrument. For example, the optical test instrument includes but is not limited to a light absorbing plate, a power meter, etc.; for example, the light quality of the light emitting module 5 can be observed through the light absorbing plate, and the light output power of the light emitting module 5 can be tested through the power meter; of course, the technical solution of this application does not impose specific restrictions on the test functions that can be achieved by the test device. It can be seen that the test method provided in this embodiment has simple operating steps, is widely applicable, and can meet relevant test requirements in different scenarios.

[0092] In addition, before performing step S1, the positive and negative electrodes of the light-emitting module should be measured using an ohmmeter so that the positive electrode of the light-emitting module can be clamped into the clamping end of the positive electrode clamp, and the negative electrode of the light-emitting module can be clamped into the clamping end of the negative electrode clamp, and power supply and subsequent testing can be realized. After step S7, the testing of all light-emitting modules is completed, and the cooling liquid is stopped and the power is turned off.

[0093] It should be noted that the testing device of the laser light emitting module can implement the various steps of the testing method of the laser light emitting module provided in the aforementioned embodiments. The relevant explanations about the testing device of the laser light emitting module are applicable to the testing method of the laser light emitting module and will not be repeated here.

[0094] In summary, the present embodiment proposes a test device for a laser light-emitting module, the test device includes a test tool, the test tool includes: a cooling plate, at least two electrode seats arranged in pairs, and at least two electrode clamps arranged in pairs; by arranging the electrode seats at intervals on the same surface of the cooling plate and connecting the electrode clamps and the electrode seats with elastic members, the clamping ends of the two electrode clamps can together form a clamping opening, and the light-emitting module can be clamped in the test area on the cooling plate, the structure is simple, the operation is convenient, and it is more conducive to the clamping and positioning of the light-emitting module; by passing coolant into the cooling plate and by energizing the electrode clamps, the power supply and heat dissipation functions of the light-emitting module are realized, which provides preparation conditions for subsequent testing processes, and then the defect detection of the light-emitting module can be realized before the product is packaged, thereby achieving the technical effect of reducing the number of rework times, saving time and cost.

[0095] It should be noted that, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0096] It should be noted that, in the description of the present utility model, unless otherwise specified, “plurality” means two or more than two.

[0097] In the present invention, unless otherwise clearly specified and limited, the terms such as "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0098] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of further restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0099] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0100] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0101] The above contents are only specific implementation methods of the present invention. Under the above teachings of the present invention, those skilled in the art can make other improvements or modifications based on the above embodiments. Those skilled in the art should understand that the above specific description is only to better explain the purpose of the present invention, and the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A test device for a laser light emitting module, characterized in that: The test fixture comprises: a cooling plate (1), at least two electrode holders (2) arranged in pairs, and at least two electrode clamps (3) arranged in pairs, The at least two electrode seats (2) are arranged at intervals on the same surface of the cooling plate (1); The at least two electrode clamps (3) are rotatably connected to the at least two electrode seats (2) via elastic members (4), respectively; the clamping ends (33) of the at least two electrode clamps (3) are arranged facing each other and together form a clamping opening, so that the light-emitting module (5) is clamped in the test area (11) of the cooling plate (1).

2. The testing device according to claim 1, characterized in that: The testing tool comprises: at least two insulating films (6) arranged in pairs, The at least two insulating films (6) are respectively arranged at contact positions between the at least two electrode seats (2) and the cooling plate (1).

3. The testing device according to claim 2, characterized in that: The at least two electrode clamps (3) are each provided with a first connecting portion (34), and the at least two electrode holders (2) are each provided with a second connecting portion (23), The first connecting portion (34) of each electrode clamp (3) is respectively connected to the second connecting portion (23) of the electrode holder (2) corresponding thereto; The first connecting portion (34) and the second connecting portion (23) are fixed by a first connecting member (7), and the elastic member (4) is sleeved on the first connecting member (7), so that the two electrode clamps (3) have a clamped state and a loosened state.

4. The testing device according to claim 3, characterized in that: The at least two electrode seats (2) are each provided with a strip-shaped hole (24), The length direction of the strip-shaped hole (24) is consistent with the adjustment direction of the at least two electrode seats (2), and the adjustment direction of the at least two electrode seats (2) is the movement direction of the at least two electrode seats (2) moving closer to or farther from each other; The at least two electrode seats (2) are movably mounted on the cooling plate (1) through the strip holes (24) respectively.

5. The testing device according to claim 4, characterized in that: The testing tool comprises: a second connecting member (8), The second connecting member (8) passes through the strip-shaped hole (24) and is fixedly connected to the mounting hole (12) on the cooling plate (1); Insulating sleeves (9) for insulating the electrode seat (2) and the cooling plate (1) are provided at both ends of the second connecting member (8).

6. The testing device according to claim 2, characterized in that: The testing tool comprises: a fixing seat (10) and a hinge assembly, wherein the hinge assembly comprises a first hinge (16) and a second hinge (17). The first hinge (16) is connected to the cooling plate (1), the second hinge (17) is connected to the fixing seat (10), and the first hinge (16) and the second hinge (17) are rotatably connected to enable the cooling plate (1) to rotate relative to the fixing seat (10); wherein, When the cooling plate (1) is flipped to the first working position, the cooling plate (1) remains in a vertical position relative to the fixing seat (10); When the cooling plate (1) is flipped to the second working position, the cooling plate (1) remains in a horizontal state relative to the fixing seat (10).

7. The testing device according to claim 6, characterized in that: The testing tool comprises: a first supporting block (18), When the cooling plate (1) is flipped to the first working position, the first support block (18) is placed on the fixing seat (10) and is arranged against the other side of the cooling plate (1) away from the two electrode clamps (3).

8. The testing device according to claim 6, characterized in that: The testing tool comprises: a second supporting block (19), The second support block (19) is arranged on an end of the fixing seat (10) away from the second hinge (17), or is arranged on an end of the cooling plate (1) away from the first hinge (16).

9. The testing device according to claim 1, characterized in that: The cooling plate (1) is provided with a liquid inlet (13) and a liquid outlet (14), and a cooling channel (15) for circulating cooling liquid is provided inside the cooling plate (1). One end of the cooling channel (15) is in communication with the liquid inlet (13), and the other end of the cooling channel (15) is in communication with the liquid outlet (14); The arrangement height of the liquid inlet (13) is different from the arrangement height of the liquid outlet (14).

10. The testing device according to any one of claims 1 to 9, characterized in that: Also includes: A test platform (20) and an optical test instrument (30), The testing fixture and the optical testing instrument (30) are both placed on the testing platform (20), and the optical testing instrument (30) is arranged facing the testing fixture to test the light-emitting module (5).

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