A fixed adjusting device for optical module testing

Abstract

The embodiment of the application provides a fixed adjusting device for optical module testing, and relates to the field of optical module testing; the device comprises a rotating mechanism arranged on a mounting seat, a plurality of adjusting rods connected to the side of the rotating mechanism in a radial manner; the clamping assembly comprises a fixed block, a movable clamping piece and a fixed clamping piece, the movable clamping piece is adjustably arranged on one side of the fixed block; the fixed clamping piece is oppositely arranged below the movable clamping piece; the clamping surface of the fixed clamping piece is embedded with a refrigeration fin; the fixed clamping piece is internally provided with a preheating cavity, and a nitrogen gas conveying pipe extending to the outside of the device is arranged in the cavity; nitrogen gas blowing channels are arranged on the two sides of the fixed clamping piece and connected with the nitrogen gas conveying pipe, and the outlets of the nitrogen gas blowing channels are aligned with the optical coupling interfaces of the optical modules; a heat pipe is arranged in the fixed clamping piece and attached to the hot surface of the refrigeration fin. The application can uniformly heat the optical modules, and can test the optical modules in the environmental temperature range, while avoiding oxidation in a high-temperature environment, thereby improving the testing accuracy and safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of optical module testing, in particular to a fixing and adjusting device for optical module testing. BACKGROUND

[0002] An optical module is composed of optoelectronic devices, functional circuits and optical interfaces, etc. The optoelectronic devices include transmitting and receiving parts. The function of the optical module is to convert electrical signals into optical signals at the transmitting end, and convert the optical signals into electrical signals at the receiving end after transmission through an optical fiber.

[0003] Currently, the main process of high-temperature aging test of the optical module is to place the optical module in the interior of a high-temperature oven for heating. In the prior art, the optical module is fixedly placed in the interior of the high-temperature oven, so that there is a problem of uneven heating of different surfaces of the optical module during the heating process, resulting in inaccurate test data. To solve the above problem, a fixing and adjusting device for clamping and rotating the optical module is designed.

[0004] However, the clamp of the existing fixing and adjusting device for clamping the optical module relies on passive heat dissipation. The actual temperature of the optical module chip is much higher than the environmental setting value at high temperature, resulting in distorted test data. Moreover, the optical coupling interface is easy to oxidize in high-temperature air, resulting in degradation of insertion loss. SUMMARY

[0005] In view of the above problems, the present application is proposed to provide a fixing and adjusting device for optical module testing which overcomes the above problems or at least partially solves the above problems.

[0006] A fixing and adjusting device for optical module testing, comprising:

[0007] An adjusting assembly, comprising a mounting seat, a rotating mechanism and a plurality of adjusting rods, the rotating mechanism is arranged on the mounting seat, and the plurality of adjusting rods are connected to the rotating mechanism in a radial manner;

[0008] A clamping assembly is arranged at the distal end of the adjusting rod, comprising a fixed block, a movable clamping piece and a fixed clamping piece, the movable clamping piece is adjustably arranged on one side of the fixed block, and the fixed clamping piece is oppositely arranged below the movable clamping piece and fixedly connected with the fixed block;

[0009] The clamping surface of the fixed clamping piece is embedded with a refrigeration fin, and the cold surface of the refrigeration fin faces the movable clamping piece;

[0010] A preheating cavity is arranged in the fixed clamping piece, and a nitrogen gas delivery pipe extending to the outside of the device is arranged in the preheating cavity; nitrogen gas purging channels are arranged on both sides of the fixed clamping piece, the nitrogen gas purging channels are connected with the nitrogen gas delivery pipe, and the outlets of the nitrogen gas purging channels are aligned with the optical coupling interface of the optical module;

[0011] The fixed holder is provided with a heat pipe which is attached to the hot surface of the refrigeration sheet and located in the preheating cavity, and the heat pipe extends to the outside of the device.

[0012] Preferably, the rotating mechanism comprises:

[0013] A driving member is arranged inside the mounting seat, and the output end of the driving member is sleeved with a first belt pulley; the mounting seat is further provided with a second belt pulley, and the first belt pulley and the second belt pulley are connected through a belt transmission;

[0014] A rotating seat is rotationally arranged on the top of the mounting seat; a rotating rod is arranged inside the rotating seat, one end of the rotating rod is connected with the output end of the driving member, and the other end of the rotating rod is provided with a bevel gear set; the plurality of adjusting rods respectively pass through the side wall of the rotating seat and are connected with the bevel gear set; a tooth ring is embedded on the lower part of the outer side of the rotating seat; a driving gear is further rotationally arranged on the top surface of the mounting seat, the driving gear is engaged with the tooth ring, and the driving gear is transmissionally connected with the second belt pulley.

[0015] Preferably, a pipe body is arranged in the adjusting rod along the axial direction of the adjusting rod, one end of the pipe body is in communication with the inside of the rotating seat, and the other end of the pipe body is in communication with the inside of the fixed block.

[0016] Preferably, the heat pipe is flat, the inside of the pipe body of the heat pipe is in a vacuum state, and a capillary wick is arranged in the pipe body; the heat pipe comprises an evaporation section, a pipe body section and a condensation section which are integrally connected, the evaporation section is attached to the refrigeration sheet, the pipe body section passes through the fixed block and extends to the outside of the device along the pipe body, and the condensation section is connected with the heat sink outside the temperature control box.

[0017] Preferably, the nitrogen conveying pipe is serpentine-shaped, the inlet of the nitrogen conveying pipe passes through the fixed block and extends to the outside of the device along the pipe body; the nitrogen conveying pipe is provided with two outlets, and the two outlets are respectively in communication with the two nitrogen purging channels.

[0018] Preferably, the two nitrogen purging channels are respectively opposite to the optical fiber connecting port and the electrical interface of the optical module.

[0019] Preferably, the end of the nitrogen purging channel away from the moving holder is obliquely arranged towards the optical module, and a plurality of air holes are formed in the nitrogen purging channel.

[0020] Preferably, the refrigeration sheet is a TEC refrigeration sheet, and a thermally conductive phase change material is filled between the TEC refrigeration sheet and the optical module.

[0021] Preferably, slide rails are respectively arranged on the two sides of the fixed block along the vertical direction of the fixed block;

[0022] Two sides of the mobile clamping piece are respectively connected with the slide rails in sliding mode, and locking structures are arranged between the mobile clamping piece and the slide rails.

[0023] Preferably, the locking structure comprises a rack, a gear set and a connecting rod, the rack is integrally arranged on one side of the slide rail;

[0024] The gear set is arranged in rotation in the mobile clamping piece and is engaged with the rack;

[0025] The connecting rod is threaded through the mobile clamping piece and is connected with the gear set, for driving the gear set to rotate.

[0026] The application specifically includes the following advantages:

[0027] In the embodiment of the application, by arranging the adjusting assembly including the mounting seat, the rotating mechanism and the plurality of adjusting rods, the rotating mechanism drives the plurality of adjusting rods to rotate, thereby driving the clamping assembly arranged at the distal end of the adjusting rod to rotate synchronously, the rotation of the optical module is realized, the optical module is uniformly heated, and the test is accurate; by arranging the clamping assembly including the fixed block, the mobile clamping piece and the fixed clamping piece, the mobile clamping piece and the fixed clamping piece are used for clamping and fixing the optical module, and the mobile clamping piece is adjustably arranged on the fixed block, which is convenient for operation; by embedding the refrigerating fin on the clamping surface of the fixed clamping piece, the cold surface of the refrigerating fin faces the mobile clamping piece and cooperates with the heat pipe arranged on the hot surface of the refrigerating fin, the optical module can be cooled, and the temperature of the optical module is controlled within the threshold range; meanwhile, by arranging the preheating cavity in the fixed clamping piece and arranging the nitrogen gas conveying pipe adjacent to the heat pipe, the nitrogen gas can be heated, and then the nitrogen gas is conveyed to the nitrogen gas purging channels on both sides, and then the nitrogen gas is purged to the optical coupling interface of the optical module, a local oxygen-free environment is formed, and the preheated nitrogen gas is used for purging the coupling interface to prevent oxidation. The application can uniformly heat the optical module, and can test the optical module within the environmental temperature range, can avoid oxidation in the high-temperature environment, and can improve the test accuracy and safety. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the application, the following will briefly introduce the drawings needed to be used in the description of the application. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Figure 1 is the overall structure schematic view of the fixed adjusting device for optical module test of the application;

[0030] Figure 2 is the partial structure sectional view of the fixed adjusting device for optical module test of the application;

[0031] Figure 3 is a structural schematic view of the clamping assembly of the present application;

[0032] Figure 4 is a sectional view of the fixed clamping piece of the present application;

[0033] Figure 5 is a structural schematic view of the nitrogen delivery pipe of the present application;

[0034] Figure 6 is a structural schematic view of the locking structure of the present application;

[0035] Fig. 1 is a mounting seat; Fig. 2 is a rotating mechanism; Fig. 21 is a driving piece; Fig. 22 is a first pulley; Fig. 23 is a second pulley; Fig. 24 is a belt; Fig. 25 is a rotating seat; Fig. 26 is a rotating rod; Fig. 27 is a bevel gear set; Fig. 28 is a tooth ring; Fig. 29 is a driving gear; Fig. 3 is an adjusting rod; Fig. 31 is a pipe body; Fig. 4 is a clamping assembly; Fig. 41 is a fixed block; Fig. 42 is a moving clamping piece; Fig. 43 is a fixed clamping piece; Fig. 431 is a preheating cavity; Fig. 44 is a refrigeration fin; Fig. 45 is a nitrogen delivery pipe; Fig. 46 is a nitrogen purging channel; Fig. 461 is a gas hole; Fig. 47 is a heat pipe; Fig. 481 is a sliding rail; Fig. 482 is a rack; Fig. 483 is a gear set; Fig. 484 is a connecting rod. DETAILED DESCRIPTION

[0036] In order to make the objectives, characteristics and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below in combination with the drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] Referring to Figures 1-6 , a structural schematic view of a fixed adjusting device for optical module testing is shown, which specifically can include:

[0038] An adjusting assembly, which includes a mounting seat 1, a rotating mechanism 2 and a plurality of adjusting rods 3, the rotating mechanism 2 is arranged on the mounting seat 1, and the plurality of adjusting rods 3 are connected to the circumferential side of the rotating mechanism 2 in a radial manner;

[0039] A clamping assembly 4, which is arranged at the distal end of the adjusting rod 3, includes a fixed block 41, a moving clamping piece 42 and a fixed clamping piece 43, the moving clamping piece 42 is adjustably arranged on one side of the fixed block 41; the fixed clamping piece 43 is oppositely arranged below the moving clamping piece 42 and is fixedly connected with the fixed block 41;

[0040] The clamping surface of the fixed clamping piece 43 is embedded with a refrigeration fin 44, and the cold surface of the refrigeration fin 44 faces the moving clamping piece 42;

[0041] The fixing clamp 43 is provided with a preheating cavity 431, and the preheating cavity 431 is provided with a nitrogen delivery pipe 45 extending to the outside of the device; the fixing clamp 43 is provided with a nitrogen purging channel 46 on each side, and the nitrogen purging channel 46 is connected with the nitrogen delivery pipe 45, and the outlet of the nitrogen purging channel 46 is aligned with the optical coupling interface of the optical module;

[0042] The fixing clamp 43 is provided with a heat pipe 47, the heat pipe 47 is attached to the hot surface of the refrigeration fin 44 and located in the preheating cavity 431, and the heat pipe 47 extends to the outside of the device.

[0043] In the embodiment of the present application, by setting the adjusting assembly, including the mounting seat 1, the rotating mechanism 2 and the plurality of adjusting rods 3, the rotating mechanism 2 drives the plurality of adjusting rods 3 to rotate, thereby driving the clamping assembly 4 provided at the distal end of the adjusting rod 3 to rotate synchronously, realizing the rotation of the optical module, so that it is evenly heated, and the test is accurate; the clamping assembly 4 includes the fixed block 41, the movable clamping piece 42 and the fixing clamp 43, the movable clamping piece 42 and the fixing clamp 43 are used for clamping and fixing the optical module, and the movable clamping piece 42 is adjustably arranged on the fixed block 41, which is convenient to operate; by embedding the refrigeration fin 44 on the clamping surface of the fixing clamp 43, the cold surface thereof faces the movable clamping piece 42, and cooperates with the heat pipe 47 provided on the hot surface thereof, which can heat the optical module, so that the temperature is controlled within the threshold range; at the same time, by setting the preheating cavity 431 in the fixing clamp 43, and providing the nitrogen delivery pipe 45 adjacent to the heat pipe 47, the nitrogen can be heated, and then delivered to the nitrogen purging channels 46 on both sides, and then purged to the optical coupling interface of the optical module, forming a local oxygen-free environment, and using the preheated nitrogen to purge the coupling interface to prevent oxidation. The present application can uniformly heat the optical module, and can test the optical module within the environmental temperature range, while avoiding oxidation in a high temperature environment, improving the test accuracy and safety.

[0044] In the following, a fixed adjusting device for testing an optical module in the present exemplary embodiment will be further described.

[0045] In the embodiment of the present application, referring to Figure 1 The adjusting assembly includes the mounting seat 1, the rotating mechanism 2 and the plurality of adjusting rods 3, the rotating mechanism 2 is arranged on the mounting seat 1, and the plurality of adjusting rods 3 are connected to the periphery of the rotating mechanism 2 in a radial manner; the clamping assembly 4 is arranged at the distal end of the adjusting rod 3. The rotating mechanism 2 drives the plurality of adjusting rods 3 to rotate, thereby driving the clamping assembly 4 to rotate, and the clamping assembly 4 is used for clamping the optical module, thereby driving the optical module to rotate synchronously, realizing uniform heating in the temperature control box, and ensuring the test accuracy.

[0046] As an example, referring to Figure 2The rotating mechanism 2 comprises a driving member 21 and a rotating seat 25, the driving member 21 can be a driving motor and a speed reducer, the driving member 21 is arranged in the mounting seat 1, the output end of the driving member 21 is sleeved with a first belt pulley 22; a second belt pulley 23 is further arranged in the mounting seat 1, the first belt pulley 22 and the second belt pulley 23 are drivingly connected through a belt 24.

[0047] The rotating seat 25 is rotatably arranged on the top of the mounting seat 1; a rotating rod 26 is arranged in the rotating seat 25, one end of the rotating rod 26 is connected with the output end of the driving member 21, the other end of the rotating rod 26 is provided with a bevel gear set 27; a plurality of adjusting rods 3 respectively pass through the side wall of the rotating seat 25 and are connected with the bevel gear set 27; specifically, the bevel gear set 27 comprises a main bevel gear and a plurality of slave bevel gears meshing with the main bevel gear, the driving member 21 drives the rotating rod 26 to rotate, the rotating rod 26 drives the main bevel gear to rotate, and in turn drives the plurality of slave bevel gears to rotate, and in turn drives the plurality of adjusting rods 3 to rotate in the vertical direction. A tooth ring 28 is embedded on the lower part of the outer side of the rotating seat 25; a driving gear 29 is further rotatably arranged on the top surface of the mounting seat 1, the driving gear 29 is meshed with the tooth ring 28, and the driving gear 29 is drivingly connected with the second belt pulley 23. The driving member 21 drives the first belt pulley 22 to rotate, the second belt pulley 23 is synchronously driven to rotate through the belt 24, the second belt pulley 23 drives the driving gear 29 to rotate, thereby driving the tooth ring 28 to rotate, the tooth ring 28 is embedded in the outer wall of the rotating seat 25, thereby driving the rotating seat 25 to rotate, the rotating seat 25 drives the plurality of adjusting rods 3 to rotate horizontally. That is, through the above structure design, the clamping assembly 4 can be driven to rotate horizontally and vertically, so that the clamped optical module is uniformly heated by rotating the multiple surfaces of the optical module.

[0048] In the embodiments of the present application, referring to Figure 3 and Figure 4 The clamping assembly 4 comprises a fixed block 41, a movable clamping member 42 and a fixed clamping member 43, the movable clamping member 42 is adjustably arranged on one side of the fixed block 41; the fixed clamping member 43 is oppositely arranged below the movable clamping member 42 and is fixedly connected with the fixed block 41; and flexible clamping of the optical module can be realized.

[0049] The clamping surface of the fixed clamping member 43 is embedded with a refrigeration fin 44, the cold surface of the refrigeration fin 44 faces the movable clamping member 42, and is used for heat dissipation of the heat of the optical module itself, so as to avoid that the actual temperature of the optical module chip is far higher than the environmental setting value (such as 85℃ environment leading to chip >100℃), thereby causing distortion of test data.

[0050] The fixed clamping piece 43 is provided with a preheating cavity 431, and the preheating cavity 431 is provided with a nitrogen delivery pipe 45 extending to the outside of the device, so as to be connected with an external nitrogen storage tank and be filled with nitrogen. Nitrogen blowing channels 46 are arranged on both sides of the fixed clamping piece 43, the nitrogen blowing channels 46 are connected with the nitrogen delivery pipe 45, and the outlets of the nitrogen blowing channels 46 are aligned with the optical coupling interface of the optical module; that is, the nitrogen is delivered to the nitrogen blowing channels 46 through the nitrogen delivery pipe 45, and the nitrogen is blown to the optical coupling interface of the optical module through the nitrogen blowing channels 46, wherein the optical coupling interface of the optical module includes a fiber connector and an electrical interface, so as to avoid oxidation of the above-mentioned interfaces in high-temperature air, cause insertion loss deterioration, and prevent the increase of contact resistance caused by high-temperature oxidation of the electrical interface. It should be noted that nitrogen is an inert gas, and even if heated to 85°C or even higher (such as 200°C), nitrogen remains inert and does not cause oxidation reaction like oxygen (O2).

[0051] The fixed clamping piece 43 is provided with a heat pipe 47, the heat pipe 47 is attached to the hot surface of the refrigeration fin 44 and located in the preheating cavity 431, and the heat pipe 47 extends to the outside of the device. The heat pipe 47 can guide the heat of the refrigeration fin 44 to the heat sink outside the box to avoid heat accumulation in the temperature control box. The heat pipe 47 and the refrigeration fin 44 cooperate to dissipate heat from the optical module and ensure stable temperature. At the same time, the heat pipe 47 is arranged in the preheating cavity 431, and the nitrogen delivery pipe 45 is also arranged in the preheating cavity 431, so that the heat of the heat pipe 47 can preheat the nitrogen, avoid cold air flow disturbance of the temperature field, and preheat the nitrogen by using the waste heat of the heat pipe 47, which is energy-saving and efficient.

[0052] As an example, with reference to Figure 2 The adjusting rod 3 is provided with a tubular body 31 along the axial direction thereof, one end of the tubular body 31 is in communication with the inside of the rotating seat 25, and the other end of the tubular body 31 is in communication with the inside of the fixed block 41. By arranging the hollow tubular body 31 in the adjusting rod 3, the nitrogen delivery and the connection of the heat pipe 47 to the outside of the temperature control box are facilitated, and the rotation of the clamping assembly 4 is not affected. Preferably, the nitrogen delivery pipe 45 and the heat pipe 47 can extend downward from the tubular body 31 to the mounting seat 1, and then extend to the outside of the temperature control box. The part outside the device can be provided with a protective sleeve to protect it.

[0053] As an example, the heat pipe 47 is flat, and its structure is the heat pipe 47 structure in the prior art: the inside of the pipe body 31 is in a vacuum state, and a capillary wick is arranged; the heat pipe 47 comprises an integrated evaporation section, pipe body 31 section and condensation section, the evaporation section is attached to the refrigeration sheet 44, the pipe body 31 section passes through the fixed block 41 and extends along the pipe body 31 to the outside of the device, and the condensation section is connected to the heat sink outside the temperature control box. The heat of the hot surface of the refrigeration sheet 44 is transferred to the evaporation section, the liquid water in the capillary wick absorbs heat and vaporizes to form steam, and the high-pressure steam flows at high speed along the vacuum cavity (the internal pressure is approximately 5 kPa) in the pipe body 31 section to the condensation section, and the steam encounters the low-temperature heat sink (such as an external air-cooled heat sink with a temperature of approximately 40°C) in the condensation section, releases latent heat and condenses into liquid water.

[0054] Further, the condensation section and the evaporation section are cyclically connected, so that the liquid water is driven by the capillary pumping force (capillary pressure ΔP is approximately 10-50 kPa) of the capillary wick to return to the evaporation section, and the working fluid water is recycled.

[0055] Further, the fixed block 41 is connected to the adjusting rod 3 near the bottom, so that the fixed clamping piece 43 is close to the adjusting rod 3, and then the heat pipe 47 is close to the pipe body 31, so that the part of the heat pipe 47 arranged in the fixed block 41 has a small inclination angle, and the evaporation section is slightly lower than the condensation section, so that the gravity assists the return flow without affecting the steam flow.

[0056] As an example, referring to Figure 5 The nitrogen delivery pipe 45 is in a serpentine shape, and the inlet of the nitrogen delivery pipe 45 passes through the fixed block 41 and extends along the pipe body 31 to the outside of the device, and is convenient for extending from the outside of the device to the outside of the temperature control box and being connected to the nitrogen storage tank. The nitrogen delivery pipe 45 is provided with two outlets, and the two outlets are respectively connected to the two nitrogen purging channels 46, so as to respectively purify the optical fiber connection port and the electrical interface at the two ends of the optical module with nitrogen, create a local oxygen-free environment, and avoid oxidation. The serpentine nitrogen delivery pipe 45 can improve the flow time of nitrogen, thereby increasing the heating time in the preheating cavity 431, improving the preheating effect, and heating the nitrogen to the same temperature as the temperature control box to avoid the influence caused by different temperatures.

[0057] Further, a temperature sensor can be arranged in the preheating cavity 431 and electrically connected to the control system, to detect the heating temperature of the nitrogen in real time, adjust the flow speed of the nitrogen or the temperature of the refrigeration sheet 44, and then adjust the temperature.

[0058] As an example, the end of the nitrogen purging channel 46 away from the moving clamping piece 42 is inclined towards the optical module, and the inclination angle is about 30°, so that the nitrogen is obliquely purged to the interface, which can prevent particles from adhering. A plurality of air holes 461 are arranged, so that the nitrogen is uniformly sprayed to form an air curtain.

[0059] As an example, the above refrigeration sheet 44 is a TEC refrigeration sheet 44, and a heat-conducting phase change material, specifically heat-conducting silicone grease, is filled between the TEC refrigeration sheet 44 and the optical module to assist heat dissipation, absorb transient heat shock, and make the optical module have good heat dissipation effect.

[0060] Further, a thin film temperature sensor is embedded on the cold side of the TEC refrigeration sheet 44 to monitor the temperature of the refrigeration sheet 44 in real time, so that the temperature of the refrigeration sheet 44 can be adjusted to ensure that the actual temperature of the optical module is consistent with the ambient temperature.

[0061] As an example, referring to Figure 3 The two sides of the fixed block 41 are respectively provided with slide rails 481 along the vertical direction thereof; the two sides of the movable clamping piece 42 are respectively connected with the slide rails 481 in a sliding manner, and a locking structure is arranged between the movable clamping piece 42 and the slide rails 481. The movable clamping piece 42 is adjusted in sliding manner to adjust the distance between the movable clamping piece 42 and the fixed clamping piece 43, so as to clamp the optical module, and the locking structure is locked to avoid unstable clamping.

[0062] Further, referring to Figure 6 The locking structure includes a rack 482, a gear set 483, and a connecting rod 484. The rack 482 is integrally arranged on one side of the slide rail 481. The gear set 483 is rotatably arranged in the movable clamping piece 42 and is engaged with the rack 482. The connecting rod 484 is threadedly arranged in the movable clamping piece 42 and is connected with the gear set 483 to drive the gear set 483 to rotate. Specifically, the gear set 483 includes two gears that are engaged with each other. One of the gears is sleeved on the end of the connecting rod 484, and the other gear is rotatably arranged in the movable clamping piece 42. When the optical module is clamped, the connecting rod 484 is rotated to drive the gear connected with the connecting rod 484 to rotate, thereby driving the other gear to rotate. The gear is engaged with the rack 482, so as to drive the movable clamping piece 42 to move along the rack 482. When the clamping is fixed, the rotation of the connecting rod 484 is stopped, and the movable clamping piece 42 is fixed under the engagement of the gear and the rack 482.

[0063] It should be noted that the connecting rod 484 can also be driven to rotate by a driving mechanism in the prior art.

[0064] As an example, the clamping piece is made of high-thermal-conductivity metal (such as aluminum alloy) to ensure that the whole module is uniformly heated.

[0065] Although the preferred embodiments of the embodiments of the present application have been described, those skilled in the art can make further changes and modifications to the embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including all changes and modifications falling within the scope of the embodiments of the present application.

[0066] Finally, it is to be understood that the phraseology or terminology such as "first" and "second" etc. used herein is merely intended to differentiate one entity or operation from another entity or operation, without necessarily requiring or implying any actual such relationship or order between such entities or operations. Moreover, the terms "comprising", "including", or any other closure, are intended to cover the non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include those elements alone but can include other elements not expressly listed or even include elements inherent in such process, method, article, or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus including the element.

[0067] The above describes in detail the fixing and adjusting device for testing the optical module provided by the present application. The principles and implementation modes of the present application are described by applying specific examples. The above description of the examples is only used to help understand the method of the present application and its core idea. Meanwhile, for those skilled in the art, the specific implementation modes and application ranges will be changed according to the idea of the present application. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A fixing and adjusting device for testing optical modules, characterized in that, include: An adjustment assembly includes a mounting base, a rotating mechanism, and multiple adjusting rods. The rotating mechanism is disposed on the mounting base, and the multiple adjusting rods are radially connected to the periphery of the rotating mechanism. A clamping assembly, disposed at the distal end of the adjusting rod, includes a fixed block, a movable clamping member, and a fixed clamping member. The movable clamping member is adjustablely disposed on one side of the fixed block. The fixed clamping member is disposed opposite to the movable clamping member below it and is fixedly connected to the fixed block. The clamping surface of the fixed clamping member is embedded with a cooling plate, and the cold surface of the cooling plate faces the movable clamping member; The fixing clamp is provided with a preheating cavity, and a nitrogen delivery pipe extending to the outside of the device is provided in the preheating cavity; nitrogen purging channels are respectively provided on both sides of the fixing clamp, the nitrogen purging channels are connected to the nitrogen delivery pipe, and the outlet of the nitrogen purging channel is aligned with the optical coupling interface of the optical module. A heat pipe is provided inside the fixing clamp, the heat pipe is attached to the hot surface of the cooling chip and located in the preheating cavity, and the heat pipe extends to the outside of the device.

2. The fixing and adjusting device for testing optical modules according to claim 1, characterized in that, The rotating mechanism includes: A driving component is disposed inside the mounting base, and a first pulley is sleeved on its output end; a second pulley is also disposed inside the mounting base, and the first pulley and the second pulley are connected by belt drive. A rotating seat is rotatably mounted on top of the mounting base; a rotating rod is provided inside the rotating seat, one end of which is connected to the output end of the driving component, and a bevel gear set is provided at the other end of the rotating rod; a plurality of adjusting rods pass through the side wall of the rotating seat and are connected to the bevel gear set; a toothed ring is embedded in the lower outer part of the rotating seat; a driving gear is also rotatably mounted on the top surface of the mounting base, the driving gear meshes with the toothed ring, and the driving gear is connected to the second pulley for transmission.

3. The fixing and adjusting device for testing optical modules according to claim 2, characterized in that, The adjusting rod has a tube inside it along its axial direction. One end of the tube is connected to the inside of the rotating seat, and the other end of the tube is connected to the inside of the fixed block.

4. The fixing and adjusting device for testing optical modules according to claim 3, characterized in that, The heat pipe is flat and its interior is in a vacuum state, and it is equipped with a capillary wick. The heat pipe includes an integrally connected evaporation section, a tube section, and a condensation section. The evaporation section is attached to the cooling chip. The tube section passes through the fixing block and extends along the tube to the outside of the device. The condensation section is connected to the external heat sink of the temperature control box.

5. The fixing and adjusting device for testing optical modules according to claim 3, characterized in that, The nitrogen delivery pipe is serpentine, and its inlet passes through the fixed block and extends along the pipe body to the outside of the device; the nitrogen delivery pipe has two outlets, which are respectively connected to the two nitrogen purging channels.

6. The fixing and adjusting device for testing optical modules according to claim 5, characterized in that, The two nitrogen purging channels are respectively opposite to the optical fiber connector and the electrical interface of the optical module.

7. The fixing and adjusting device for testing optical modules according to claim 6, characterized in that, The end of the nitrogen purging channel away from the moving clamp is inclined toward the optical module and has multiple air holes.

8. The fixed adjustment device for testing optical modules according to claim 1, characterized in that, The cooling chip is a TEC cooling chip, and the space between the TEC cooling chip and the optical module is filled with a thermally conductive phase change material.

9. The fixing and adjusting device for testing optical modules according to claim 1, characterized in that, The fixed block has slide rails on both sides along its vertical direction; The two sides of the movable clamp are slidably connected to the slide rail, and a locking structure is provided between them.

10. The fixing and adjusting device for testing optical modules according to claim 9, characterized in that, The locking structure includes a rack, a gear set, and a connecting rod, with the rack integrally disposed on one side of the slide rail; The gear set is rotatably disposed inside the movable clamping member and meshes with the rack; The connecting rod is threaded through the movable clamping member and connected to the gear set to drive the gear set to rotate.

Images