Optical module temperature testing equipment

Abstract

The utility model discloses optical module temperature testing equipment, which is applied to the technical field of optical module temperature testing equipment, and is characterized in that the optical module temperature testing equipment comprises a testing outer box and a sealing door rotationally connected to the testing outer box; a cooling and temperature control assembly and a testing inner box are fixedly connected in the testing outer box in parallel, and air supply channels which are communicated with the cooling and temperature control assembly and horizontally supply air into the testing inner box are arranged in the testing outer box and the sealing door. A test mounting frame arranged in the vertical direction is fixedly connected into the test inner box, a plurality of optical module circuit boards are fixedly connected to the test mounting frame at intervals in the vertical direction, and the test mounting frame is fixedly connected with a communication air supply channel right above the optical module circuit boards. The air inducing assembly is used for guiding horizontal air supply to be vertical air supply over against the optical module; the technical effect is that the temperature control effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of optical module temperature testing equipment, in particular to an optical module temperature testing equipment. Background Art

[0002] Optical modules are optoelectronic devices that perform photoelectric and electro-optical conversion. The transmitting end of the optical module converts electrical signals into optical signals, and the receiving end converts optical signals into electrical signals. When a single optical module is powered on, the chip temperature will rise from room temperature to above 100°C within 5 minutes, the module case temperature will be above 100°C, and the maximum temperature can reach above 200°C. When testing multiple optical modules, it is necessary to ensure that the test environment temperature is below 70°C and the air temperature uniformity at any point in the environment is within ±3°C. When the modules are powered on to test voltage and current stability (for 12 hours or more), ensure that the chip temperature of all modules is below 85°C, the case temperature of all modules is below 75°C, and the case temperature uniformity of all modules is within ±3°C. This places higher requirements on the temperature control performance of the test equipment. Utility Model Content

[0003] The purpose of the utility model is to provide an optical module temperature testing device, which has the advantage of good temperature control effect.

[0004] The above technical purpose of the present utility model is achieved through the following technical solutions: an optical module temperature testing device, comprising a test outer box and a closed door rotatably connected to the test outer box; a cooling and temperature control component and a test inner box are fixedly connected in parallel in the test outer box, and an air supply passage connected to the cooling and temperature control component and supplying air horizontally to the test inner box is provided in the test outer box and the closed door; a test mounting frame arranged along the vertical direction is fixedly connected in the test inner box, and a number of optical module circuit boards are fixedly connected to the test mounting frame at intervals along the vertical direction; the test mounting frame is fixedly connected to an air supply passage directly above the optical module circuit board, which is used to guide the horizontal air supply into an air induction component for vertically supplying air to the optical module.

[0005] The utility model is further configured as follows: the air supply passage includes a first air supply chamber arranged between the test outer box and the test inner box, and a second air supply chamber opened in the closed door and connected to the first air supply chamber, the air induced assembly is connected to the second air supply chamber, an air supply motor is fixedly connected to the test outer box, and an air supply wheel is fixedly connected to the rotating shaft of the air supply motor.

[0006] The present invention is further configured as follows: the air induced draft component includes a plurality of air induced draft grooves evenly spaced along the vertical direction on the inner wall of the second air supply chamber close to one side of the test inner box, and a hollow air induced draft duct fixedly connected to the test mounting frame along the horizontal direction; one end of the hollow air induced draft duct is provided with an air inlet duct cooperating with the air induced draft grooves; the bottom of the hollow air induced draft duct is provided with a plurality of air outlets cooperating with the optical module on the optical module circuit board; the inner wall of the second air supply chamber is provided with an adjustment component for adjusting the size of the air induced draft grooves so as to achieve consistent air induced volume per unit time of the plurality of air induced draft assemblies; the opening size of the air induced draft grooves gradually increases from top to bottom along the vertical direction.

[0007] The present invention is further configured as follows: the adjustment component includes adjustment slots symmetrically opened at both ends of the air duct and an air adjustment plate slidably connected to the inner wall of the first air supply cavity along the vertical direction, and the air volume entering the hollow air duct is adjusted based on the shielding portion of the adjustment slot, and the air adjustment plate is fixedly connected to the adjustment slot based on a locking nut.

[0008] The utility model is further configured as follows: a silicone sealing pad for improving sealing is fixedly connected to one end of the air inlet pipe away from the hollow air duct.

[0009] The present invention is further configured as follows: sliding mounting blocks are symmetrically fixedly connected to both ends of the hollow air duct, and sliding mounting grooves that cooperate with the sliding mounting blocks are symmetrically fixedly connected to both ends of the test mounting frame. The hollow air duct is installed on the test mounting frame by inserting the sliding mounting blocks into the sliding mounting grooves.

[0010] The utility model is further configured as follows: the optical module circuit board is arranged on the test mounting frame based on an insulating sliding assembly, the insulating sliding assembly includes insulating sliding wheels that are evenly spaced and rotatably connected to the test mounting frame along a horizontal mounting direction, and the test mounting frame is fixedly connected on both sides along the horizontal mounting direction with insulating rubber pads for preventing wear on both sides of the optical module circuit board and preventing damage to the optical module circuit board caused by static electricity.

[0011] The utility model is further configured as follows: a first temperature sensor for testing the ambient temperature is fixedly provided in the test inner box, a second temperature sensor for monitoring the temperature of the optical module is provided on the optical module circuit board, and at least two third temperature sensors are provided on the test mounting frame along the vertical direction, which are movably arranged based on active measurement components and are used to adhere to the surface of the optical module to measure the temperature of the optical module housing.

[0012] The utility model is further configured as follows: the active measurement component includes a rotating rod rotatably connected to the test mounting frame and a mounting rod fixedly connected to the rotating rod along a direction perpendicular to the rotating rod, the mounting rod being fixedly connected to a locking slot, the end of the mounting rod being rotatably connected to a locking screw for locking and fixing the third temperature sensor in the locking slot, one end of the rotating rod being rotatably connected to the test mounting frame based on the mounting rod, a return support torsion spring being sleeved on the mounting rod, the two ends of the return support torsion spring being respectively fixedly connected to the rotating rod and the test mounting frame, the rotating rods of several active measurement components are connected based on connecting wires, the bottom of the test inner box is fixedly connected to a traction motor, the rotating shaft of the traction motor is fixedly connected to a traction wheel, and the connecting wire is wound around the traction wheel.

[0013] In summary, the present invention has the following beneficial effects:

[0014] 1. The air induced component has an air induced groove on the inner wall of the second air supply cavity, an air inlet pipe that matches the air induced groove is set at one end of the hollow air induced pipe, and an air outlet facing the optical module on the optical module circuit board is set at the bottom of the hollow air induced pipe. The cooling air enters the hollow air induced pipe from the air induced groove along the horizontal direction, and the cooling air is concentrated and gathered in the hollow air induced pipe. Finally, it is sent out from the bottom air outlet along the vertical direction and blows air directly towards the optical module for cooling, which greatly improves the cooling efficiency and effect, and can also reduce air volume loss.

[0015] 2. An adjustment component for adjusting the size of the air duct is provided on the inner wall of the second air supply chamber. The adjustment component is provided with adjustment slots at both ends of the air duct and air regulating plates on the inner wall of the first air supply chamber. The air regulating plates partially cover the adjustment slots to adjust the air volume entering the corresponding hollow air duct. This ensures that the air volume per unit time of the air duct assembly from top to bottom remains consistent, thereby achieving balanced temperature control for all optical modules and improving temperature control effect.

[0016] 3. While setting the first temperature sensor and the second temperature sensor to measure the ambient temperature in the test box and the temperature of the optical module, a third temperature sensor for measuring the outer shell temperature of the optical module is set on the test mounting frame based on the active measurement component. When the temperature of the optical module needs to be measured, the traction motor drives the traction wheel to rotate, thereby pulling the connecting line downward, and the rotating rod rotates downward to drive the third temperature sensor fixed on the mounting rod to contact the outer shell surface of the optical module for temperature measurement, and compares the temperature with the temperature of the first temperature sensor and the second temperature sensor, thereby improving the temperature measurement accuracy. After the measurement is completed, the traction motor drives the traction wheel to reverse, and the return support torsion spring returns to drive the rotating rod and the mounting rod to return, thereby avoiding blocking the outer shell surface of the optical module and affecting the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0018] Figure 2 Schematic diagram of the overall internal structure of this embodiment;

[0019] Figure 3 Schematic diagram of the structure of the air supply passage of this embodiment;

[0020] Figure 4 is a schematic structural diagram of the test mounting frame of this embodiment;

[0021] Figure 5 yes Figure 4 A magnified schematic diagram of part A;

[0022] Figure 6 2 is a schematic structural diagram of the closed door of this embodiment;

[0023] Figure 7 Schematic diagram of the structure of the air induction assembly of this embodiment;

[0024] Figure 8 Schematic diagram of the structure of the insulating sliding assembly of this embodiment;

[0025] Figure 9 yes Figure 8 A magnified schematic diagram of part B;

[0026] Figure 10 Schematic diagram of the structure of the active measurement component of this embodiment.

[0027] Figure markings: 1. test outer box; 2. closed door; 3. cooling and temperature control component; 4. test inner box; 5. air supply passage; 51. first air supply chamber; 52. second air supply chamber; 53. air supply motor; 54. air supply wheel; 6. test mounting frame; 7. optical module circuit board; 8. air induced draft component; 81. air induced draft slot; 82. hollow air induced draft duct; 83. air inlet duct; 84. air outlet; 85. adjustment component; 86. adjustment slot; 87. air adjustment plate; 88. sliding mounting block; 89. sliding mounting slot; 9. insulating sliding component; 91. insulating sliding wheel; 92. insulating rubber pad; 10. active measurement component; 101. rotating rod; 102. mounting rod; 103. locking slot; 104. locking screw; 105. mounting shaft; 106. return support torsion spring; 107. connecting line; 108. traction motor; 109. traction wheel. DETAILED DESCRIPTION

[0028] The present invention will be described in further detail below with reference to the accompanying drawings.

[0029] Example:

[0030] refer to Figures 1 to 10 , an optical module temperature testing device includes a test outer box 1 and a closed door 2 rotatably connected to the test outer box 1, a cooling and temperature control component 3 and a test inner box 4 are fixedly connected in parallel in the test outer box 1, an air supply passage 5 is provided in the test outer box 1 and the closed door 2, which is connected to the cooling and temperature control component 3 and supplies air horizontally to the test inner box 4, and the cooling air circulates in the air supply passage 5, and a test mounting frame 6 arranged in a vertical direction is fixedly connected in the test inner box 4, the test mounting frame 6 is provided with several layers, and several optical module circuit boards 7 are fixedly connected to the test mounting frame 6 at intervals in the vertical direction, and a power supply circuit board for powering the optical module circuit board 7 is fixedly provided at one end of the test mounting frame 6 away from the closed door 2, and at the same time, the test mounting frame 6 is provided with a power supply circuit board for powering the optical module circuit board 7. 7 is fixedly connected to the supply air passage 5, which is used to guide the horizontal air supply to the air induction component 8 that is directly facing the optical module. The air induction component 8 avoids the cooling air from being gathered to reduce the loss of air volume. The test inner box 4 is open at one end close to the closed door 2, and is closed at the other end and has a number of air outlets evenly provided thereon. The air outlet 84 leads directly to the outside air. The cooling air entering the test inner box 4 absorbs the heat of the optical module and is discharged to the outside air from the air outlet. The cooling and temperature control component 3 includes an air cooler and an exhaust turbo fan. The air inlet and outlet positions are provided on the air supply passage 5. The air cooler sends the cold air into the air supply passage 5 for circulation, and at the same time promotes the flow efficiency of the air in the air supply passage 5 through the exhaust turbo fan. An electric heating pipe is also provided for temperature compensation. In this embodiment, two parallel test racks 6 are used. Each rack can hold 42 optical module circuit boards 7 vertically, allowing for temperature testing of 84 optical module circuit boards 7 at once, significantly improving test efficiency. The heating tubes, exhaust turbofans, and air coolers all feature variable frequency operation. The heating tubes precisely monitor and calculate component temperatures using a PLC, then customize the power for precise heating and temperature compensation. The exhaust turbofans precisely calculate the circulating air volume based on the size and usable area of ​​the enclosure. A special exhaust fan forces air out, eliminating any residual heat in the environment. The air cooler calculates the required cooling power using a heat exchange formula. Through a specially designed air path, the air is thoroughly stirred in the impeller before being blown toward the components for cooling.

[0031] refer to Figure 2 and Figure 3Specifically, the air supply passage 5 includes a first air supply chamber 51 disposed between the test outer box 1 and the test inner box 4, and a second air supply chamber 52 opened within the closed door 2 and connected to the first air supply chamber 51. The air induction assembly 8 is connected to the second air supply chamber 52. A blower motor 53 is fixedly connected to the test outer box 1, and a blower wheel 54 is fixedly connected to the rotating shaft of the blower motor 53. The blower motor 53 drives the blower wheel 54 to rotate, thereby driving the cooling air to circulate within the air supply passage 5. In this embodiment, the blower motor 53 converts the required cooling power using a heat exchange formula, and then calculates the motor power and speed to customize the specific specifications to achieve the required wind speed and air volume. The blower wheel 54 also converts the required cooling power using a heat exchange formula, and then calculates the diameter of the blower wheel to customize the specific specifications.

[0032] refer to Figure 6 and Figure 7 Specifically, the air induced component 8 includes a plurality of air induced grooves 81 evenly spaced along the vertical direction and arranged on the inner wall of the second air supply chamber 52 close to the test inner box 4, and a hollow air induced pipe 82 fixedly connected to the test mounting frame 6 along the horizontal direction. An air inlet pipe 83 that cooperates with the air induced grooves 81 is provided at one end of the hollow air induced pipe 82. A silicone sealing gasket for improving sealing is fixedly connected to the end of the air inlet pipe 83 away from the hollow air induced pipe 82. A plurality of air outlets 84 that cooperate with the optical module on the optical module circuit board 7 are provided at the bottom of the hollow air induced pipe 82. The cooling air enters the hollow air induced pipe 82 from the air induced grooves 81 along the horizontal direction, and the cooling air is discharged in the hollow air induced pipe 8 2 is concentrated and gathered, and finally sent out vertically from the bottom air outlet 84 and blown directly onto the optical module for cooling, greatly increasing the cooling efficiency and effect, while also reducing air volume loss. An adjustment component 85 is provided on the inner wall of the second air supply chamber 52 for adjusting the size of the air induction slots 81 so as to maintain a consistent air volume per unit time for the multiple air induction components 8. The opening size of the air induction slots 81 gradually increases from top to bottom along the vertical direction. Since the wind speed gradually decreases from top to bottom, the opening size of the upper air induction slots 81 is set to be smaller than the opening size of the lower air induction slots 81, thereby maintaining a consistent air volume per unit time for the air induction components 8 from top to bottom. The adjustment component 85 includes adjustment slots 86 symmetrically arranged at both ends of the air induction slots 81 and an air regulating plate 87 slidably connected to the inner wall of the first air supply chamber 51 along the vertical direction. The air regulating plate 87 is fixedly connected to the adjustment slots 86 by a locking nut, making adjustment convenient.

[0033] refer to Figures 4 to 7Specifically, the two ends of the hollow air duct 82 are symmetrically fixed with sliding mounting blocks 88, and the two ends of the test mounting frame 6 are symmetrically fixed with sliding mounting grooves 89 that cooperate with the sliding mounting blocks 88. By inserting the sliding mounting blocks 88 into the sliding mounting grooves 89, the hollow air duct 82 is installed on the test mounting frame 6, which is convenient for installation and disassembly.

[0034] refer to Figure 8 and Figure 9 Specifically, the optical module circuit board 7 is set on the test mounting frame 6 based on the insulating sliding component 9. The insulating sliding component 9 includes insulating sliding wheels 91 that are evenly spaced and rotated along the horizontal mounting direction and connected to the test mounting frame 6. The test mounting frame 6 is fixedly connected on both sides along the horizontal mounting direction with insulating rubber pads 92 for preventing wear on both sides of the optical module circuit board 7 and preventing damage to the optical module circuit board 7 caused by static electricity. The insulating sliding wheels 91 and the insulating rubber pads 92 prevent the optical module circuit board 7 from direct contact with the test mounting frame 6, thereby preventing damage to the optical module caused by static electricity and also preventing wear of the optical module circuit board 7.

[0035] refer to Figure 10Specifically, a first temperature sensor for testing the ambient temperature is fixedly provided in the test inner box 4, a second temperature sensor for monitoring the temperature of the optical module is provided on the optical module circuit board 7, and at least two third temperature sensors are movably arranged based on the active measurement component 10 along the vertical direction on the test mounting frame 6, which are used to fit the surface of the optical module to measure the temperature of the optical module housing. The active measurement component 10 includes a rotating rod 101 rotatably connected to the test mounting frame 6 and a mounting rod 102 fixedly connected to the rotating rod 101 along a direction perpendicular to the rotating rod 101, a locking groove 103 is fixedly connected to the mounting rod 102, and a locking screw 104 is rotatably connected to the end of the mounting rod 102 for locking and fixing the third temperature sensor in the locking groove 103, one end of the rotating rod 101 is rotatably connected to the test mounting frame 6 based on the mounting shaft 105, and a return support torsion spring 106 is sleeved on the mounting shaft 105, and the two ends of the return support torsion spring 106 The ends are respectively fixedly connected to the rotating rod 101 and the test mounting frame 6. The rotating rods 101 of several active measurement components 10 are connected based on the connecting line 107. A traction motor 108 is fixedly connected to the bottom of the test inner box 4. A traction wheel 109 is fixedly connected to the rotating shaft of the traction motor 108. The connecting line 107 is wound and connected to the traction wheel 109. When the temperature of the optical module needs to be measured, the traction motor 108 drives the traction wheel 109 to rotate, thereby pulling the connecting line 107 downward, and the rotating rod 101 rotates downward, thereby driving the third temperature sensor fixed on the mounting rod 102 to contact the outer surface of the optical module for temperature measurement, and compare it with the temperature of the first temperature sensor and the second temperature sensor, thereby improving the accuracy of temperature measurement. After the measurement is completed, the traction motor 108 drives the traction wheel 109 to reverse, and the return support torsion spring 106 returns to drive the rotating rod 101 and the mounting rod 102 to return, thereby avoiding blocking the outer surface of the optical module and affecting the cooling effect.

[0036] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An optical module temperature testing device, comprising a test outer box (1) and a closed door (2) rotatably connected to the test outer box (1); characterized in that: The test outer box (1) is fixedly connected in parallel with a cooling and temperature control component (3) and a test inner box (4). The test outer box (1) and the closed door (2) are provided with an air supply passage (5) connected with the cooling and temperature control component (3) and for horizontally supplying air to the test inner box (4). The test inner box (4) is fixedly connected with a test mounting frame (6) arranged along the vertical direction. A plurality of optical module circuit boards (7) are fixedly connected to the test mounting frame (6) at intervals along the vertical direction. The test mounting frame (6) is fixedly connected with an air induction component (8) connected to the air supply passage (5) just above the optical module circuit board (7) and used for guiding the horizontal air supply to be a vertical air supply facing the optical module.

2. The optical module temperature testing device according to claim 1, characterized in that: The air supply passage (5) includes a first air supply chamber (51) arranged between the test outer box (1) and the test inner box (4), and a second air supply chamber (52) opened in the closed door (2) and connected to the first air supply chamber (51). The air induction component (8) is connected to the second air supply chamber (52). An air supply motor (53) is fixedly connected to the test outer box (1), and an air supply wheel (54) is fixedly connected to the rotating shaft of the air supply motor (53).

3. The optical module temperature testing device according to claim 2, characterized in that: The air induction assembly (8) includes a plurality of air induction grooves (81) uniformly spaced along the vertical direction and arranged on the inner wall of the second air supply chamber (52) close to the test inner box (4), and a hollow air induction pipe (82) fixedly connected to the test mounting frame (6) along the horizontal direction, one end of the hollow air induction pipe (82) is provided with an air inlet pipe (83) matched with the air induction grooves (81), the bottom of the hollow air induction pipe (82) is provided with a plurality of air outlets (84) matched with the optical module on the optical module circuit board (7), the inner wall of the second air supply chamber (52) is provided with an adjustment assembly (85) for adjusting the size of the air induction grooves (81) so as to achieve consistent air induction volume per unit time of the plurality of air induction assemblies (8), and the opening size of the air induction grooves (81) gradually increases from top to bottom along the vertical direction.

4. The optical module temperature testing device according to claim 3, characterized in that: The regulating assembly (85) includes regulating grooves (86) symmetrically arranged at both ends of the air induction groove (81) and an air regulating plate (87) slidably connected to the inner wall of the first air supply cavity (51) along the vertical direction, and regulating the amount of air entering the hollow air induction duct (82) based on the shielding portion of the regulating groove (86), and the air regulating plate (87) is fixedly connected to the regulating groove (86) based on a locking nut.

5. The optical module temperature testing device according to claim 3, characterized in that: One end of the air inlet pipe (83) away from the hollow air induction pipe (82) is fixedly connected to a silicone sealing pad for improving sealing performance.

6. The optical module temperature testing device according to claim 3, characterized in that: The two ends of the hollow air duct (82) are symmetrically fixedly connected with sliding mounting blocks (88), and the two ends of the test mounting frame (6) are symmetrically fixedly connected with sliding mounting grooves (89) that cooperate with the sliding mounting blocks (88). Based on inserting the sliding mounting blocks (88) into the sliding mounting grooves (89), the hollow air duct (82) is installed on the test mounting frame (6).

7. The optical module temperature testing device according to claim 1, characterized in that: The optical module circuit board (7) is arranged on the test mounting frame (6) based on an insulating sliding assembly (9); the insulating sliding assembly (9) comprises insulating sliding wheels (91) that are evenly spaced and rotatably connected to the test mounting frame (6) along a horizontal mounting direction; and insulating rubber pads (92) are fixedly connected to both sides of the test mounting frame (6) along the horizontal mounting direction to prevent wear on both sides of the optical module circuit board (7) and to prevent damage to the optical module circuit board (7) caused by static electricity.

8. The optical module temperature testing device according to claim 1, characterized in that: A first temperature sensor for testing the ambient temperature is fixedly provided in the test inner box (4); a second temperature sensor for monitoring the temperature of the light module is provided on the light module circuit board (7); and at least two third temperature sensors are provided on the test mounting frame (6) along a vertical direction and are movably arranged based on active measurement components (10) and are used to adhere to the surface of the light module to measure the temperature of the light module housing.

9. The optical module temperature testing device according to claim 8, characterized in that: The active measurement component (10) comprises a rotating rod (101) rotatably connected to the test mounting frame (6) and a mounting rod (102) fixedly connected to the rotating rod (101) in a direction perpendicular to the rotating rod (101), wherein a locking groove (103) is fixedly connected to the mounting rod (102), and a locking screw (104) for locking and fixing the third temperature sensor in the locking groove (103) is rotatably connected to the end of the mounting rod (102), and one end of the rotating rod (101) is rotatably connected to the test mounting frame based on a mounting shaft (105). The test mounting frame (6) is mounted on a test mounting frame (6), a return support torsion spring (106) is sleeved on the mounting shaft (105), two ends of the return support torsion spring (106) are respectively fixedly connected to the rotating rod (101) and the test mounting frame (6), the rotating rods (101) of the active measurement components (10) are connected based on a connecting line (107), a traction motor (108) is fixedly connected to the bottom of the test inner box (4), a traction wheel (109) is fixedly connected to the rotating shaft of the traction motor (108), and the connecting line (107) is wound and connected to the traction wheel (109).

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