A light module temperature calibration device for use with a heat flow meter

Abstract

The utility model discloses a light module temperature calibration device that cooperates with hot current appearance, including the panel of being equipped with light module inlay slot and being equipped with temperature sensing thermocouple on temperature sensing thermocouple wire clamp, its characterized in that still includes temperature sensing thermocouple elastic buffer lifting fixture on the panel, and it includes omniball contact head, first elastic mechanism and second elastic mechanism, and temperature sensing thermocouple wire clamp is established on the light module inlay slot of the panel through first elastic mechanism upper, and omniball contact head is established through second elastic mechanism on temperature sensing thermocouple wire clamp upper, and this omniball contact head is used to same hot current appearance's shower nozzle bottom face shield contact and drops with the drop of shower nozzle, to make temperature sensing thermocouple and reach the surface of light module, and the elasticity of second elastic mechanism is greater than the elasticity of first elastic mechanism. The utility model can be contacted through the face shield of hot current appearance shower nozzle and press against and contact product, need not manual pressing, and the efficiency is high, and the reliability is good.

Description

Technical Field

[0001] This utility model relates to an optical module temperature calibration device used in conjunction with a heat flow meter. Background Technology

[0002] Optical modules are high-power, heat-generating devices currently used in the communications industry. Classified by packaging type, common optical module products include SFP, SFP+, SFF, and Gigabit Ethernet Interface Converters (GBICs). In existing technologies, optical module manufacturers need to perform temperature calibration on their products during production. This calibration process uses temperature-sensing thermocouples (such as PT1000) in contact with the optical module to obtain accurate temperature values. Simultaneously, traditional temperature calibration methods also require monitoring the product's surface temperature under specified ambient temperatures; the most commonly used equipment for this is a heat flow meter (also known as a thermal shock test chamber).

[0003] Because current heat flow meters need to quickly adjust the ambient temperature to a specified temperature, the smaller the volume of the nozzle's bottom cover (which has a bottom surface with airflow openings), the better. This results in limited space beneath the heat flow meter's cover, making it difficult to design a complex electric clamping mechanism to drive the temperature-sensing thermocouples. Therefore, in actual testing operations, manual pressing of the fixture is currently used to ensure that the temperature-sensing thermocouples installed on it maintain contact with the product surface to obtain accurate temperature data. However, manual pressing has the following disadvantages: 1. Low operational efficiency results in low product temperature calibration efficiency; 2. Long-term manual operation can easily lead to missed presses due to fatigue or negligence, resulting in an increased product defect rate; 3. It is difficult to control the pressure manually, which can easily cause the thermocouple to collide or rub against the product, resulting in poor reliability. Summary of the Invention

[0004] The purpose of this invention is to provide a light module temperature calibration device for use with a heat flow meter, which addresses the problems of existing technologies. The device can contact the product by pressing against the heat flow meter nozzle mask, eliminating the need for manual pressing, and is highly efficient and reliable.

[0005] The technical solution of this utility model is as follows: a temperature calibration device for an optical module used in conjunction with a heat flow meter, comprising a panel with an optical module mounting slot and a temperature-sensing thermocouple mounted on a temperature-sensing thermocouple clamp, characterized in that it further comprises an elastic buffer lifting fixture for the temperature-sensing thermocouple mounted on the panel, which includes a spherical contact head, a first elastic mechanism and a second elastic mechanism. The temperature-sensing thermocouple clamp is mounted above the optical module mounting slot on the panel via the first elastic mechanism, while the spherical contact head is mounted above the temperature-sensing thermocouple clamp via the second elastic mechanism. The spherical contact head is used to contact the bottom cover of the nozzle of the heat flow meter and descends as the nozzle descends, so that the temperature-sensing thermocouple contacts the surface of the optical module, and the elastic force of the second elastic mechanism is greater than that of the first elastic mechanism.

[0006] Furthermore, in this utility model, the first elastic mechanism includes a crossbeam spanning the optical module mounting slot. The crossbeam has symmetrical longitudinal positioning holes at both ends. First screws are inserted into the positioning holes to fix the crossbeam to the panel. Each first screw is fitted with a first spring that abuts against the crossbeam and the panel. The thermocouple clamp is fixed to the middle of the crossbeam by a positioning screw. The top of the positioning screw has a screw hole.

[0007] Furthermore, in this utility model, the second elastic mechanism includes a movable sleeve with a bottom wall. The bottom wall is fixed to the positioning screw by a second plug screw that passes through and is screwed into the screw hole at the top of the positioning screw. A second spring is sleeved on the second plug screw and abuts against the bottom of the movable sleeve and the top of the positioning screw. The elastic force of the second spring is greater than that of the first spring. The omnidirectional ball contact head includes an omnidirectional ball base and an omnidirectional ball embedded thereon. The omnidirectional ball base is fixed to the top of the movable sleeve.

[0008] Furthermore, the panel of this utility model is provided with two adjustment blocks symmetrically distributed on both sides of the optical module mounting slot. The two ends of the crossbeam are fixed to the two adjustment blocks respectively by passing through the first plug screw. The first spring is abutted between the crossbeam and the corresponding adjustment block. Each adjustment block is provided with a row of positioning screw holes parallel to the optical module mounting slot. The row of positioning screw holes is composed of two or more positioning screw holes that are equally spaced.

[0009] Furthermore, in this invention, each adjustment block has two or more elongated holes arranged side by side, perpendicular to the optical module mounting slot, for inserting adjustment block fixing screws to fix the adjustment block to the panel.

[0010] Furthermore, the thermocouple clamp described in this utility model has a clamp elongated hole extending along the length direction of the optical module mounting slot, and the positioning screw passes through the clamp elongated hole to fix the thermocouple clamp to the crossbeam.

[0011] The working principle of this utility model is as follows: Similar to conventional technology, in this invention, the panel is placed below the bottom cover of the nozzle of the heat flow meter, and the optical module to be calibrated is installed in the optical module mounting slot.

[0012] During temperature calibration, the heat flow meter nozzle descends vertically. When the bottom cover of the nozzle contacts the omnidirectional ball contact head at the top of the thermocouple elastic buffer lifting fixture, the first elastic mechanism is compressed first due to the greater elastic force of the second mechanism (i.e., the two first springs are compressed). This causes the crossbeam, along with the thermocouple clamp on it, to descend, bringing the thermocouple into contact with the surface of the optical module under test, at which point the nozzle descent stops. The primary function of the compressed second elastic mechanism is to act as a buffer, preventing hard contact between the heat flow meter nozzle and the thermocouple elastic buffer lifting fixture, thus avoiding damage to the fixture. Similarly, the elastic force of the second mechanism also counteracts the impact on the thermocouple elastic buffer lifting fixture during excessive nozzle descent, preventing damage to the thermocouple below.

[0013] After the test is completed, the nozzle of the heat flow meter is raised. Due to the removal of pressure, the thermocouple and the omnidirectional ball contact head are reset under the action of the reset elastic force of the first and second elastic mechanisms.

[0014] The advantages of this utility model's technical solution are as follows: 1. The temperature calibration device provided by this utility model allows the temperature-sensing thermocouple to descend and contact the optical module during the temperature calibration process by being pressed down by the heat flow meter nozzle. After the pressure is removed, it can automatically rise under the reset force of the elastic buffer lifting fixture of the temperature-sensing thermocouple, eliminating the need for manual pressing operation. This greatly improves the testing efficiency of temperature calibration and avoids the situation of missed pressing due to fatigue or negligence during long-term manual operation, thereby improving the yield rate.

[0015] 2. The temperature calibration device provided by this utility model not only has a simple overall structure and is easy to operate, but also provides stable elastic force to ensure that the thermocouple is in contact with the product surface because the thermocouple elastic buffer lifting fixture can provide stable elastic force. Unlike manual operation, it is not difficult to control the pressing pressure. Therefore, it can avoid damage caused by collision or friction between the thermocouple and the product, thereby improving the contact reliability of the two, extending the service life of the thermocouple, and improving the product yield.

[0016] 3. The temperature calibration device provided by this utility model uses an adjustment block to fix the crossbeam. The adjustment block has a row of positioning screw holes distributed parallel to the optical module mounting slot. By fixing the first plug screw in different positioning screw holes, the fixed position of the crossbeam can be adjusted back and forth, thereby expanding the contact range between the temperature sensing thermocouple wire and the optical module below, improving the diversity of temperature detection data, reducing detection errors, and enhancing the compatibility of detection for various optical modules.

[0017] 4. In the temperature calibration device provided by this utility model, the movement guidance of the first elastic mechanism is achieved through the assembly of the first locking screw and the crossbeam. The smaller the assembly gap between the first locking screw and the crossbeam, the higher the movement accuracy of the first elastic mechanism. The first locking screw 1 is fixed to the adjusting block, and the adjusting block is fixed to the panel by the adjusting block screw passing through the elongated hole of the adjusting block. Therefore, the left and right positions of the two adjusting blocks on the panel can be finely adjusted through the elongated hole of the adjusting block, thereby adjusting the assembly gap between the first locking screw and the crossbeam, ensuring that there is no interference or jamming due to assembly and mechanism tolerances during the lifting and lowering process of the first elastic mechanism.

[0018] 5. The temperature calibration device provided by this utility model has an elongated hole on the thermocouple clamp, which facilitates the adjustment of the position of the thermocouple. With the help of the elongated hole, the thermocouple clamp can be repositioned relative to the crossbeam, and even rotated left and right, so that the thermocouple can be adjusted to correspond to different areas on the optical module below, thereby expanding the testing range of the optical module and enhancing compatibility.

[0019] The objectives, advantages, and features of this utility model will be illustrated and explained through the following non-limiting description of preferred embodiments, which are given by way of example only with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model (in a non-working state, i.e., the heat flow meter nozzle is not pressed down). Figure 2 yes Figure 1 A schematic diagram of the individual assembly structure of the thermocouple elastic buffer lifting fixture; Figure 3 This is the main view of the present invention (working state, i.e., the heat flow meter nozzle is pressed down). Figure 4 yes Figure 3 AA-direction cross section; Figure 5 yes Figure 3 The right view; Figure 6 yes Figure 5 BB-direction cross-section.

[0021] The components include: 1. Panel; 2. Optical module mounting slot; 3. Thermocouple clamp; 301. Clamp elongated hole; 4. Thermocouple; 5. Nozzle; 501. Mask; 6. Crossbeam; 7. First screw; 8. First spring; 9. Positioning screw; 10. Movable sleeve; 11. Second screw; 12. Second spring; 13. Sphere base; 14. Sphere; 15. Adjusting block; 1501. Positioning screw hole; 1502. Adjusting block elongated hole; 16. Adjusting block fixing screw. Detailed Implementation

[0022] Example: Combining Figure 1-6 The specific implementation of the optical module temperature calibration device for use with a heat flow meter provided by this utility model is described below: The whole is composed of a panel 1 located below the bottom cover 501 of the nozzle 5 of the heat flow meter and equipped with a light module mounting slot 2, a temperature sensing thermocouple 4 located on the temperature sensing thermocouple clamp 3, and a temperature sensing thermocouple elastic buffer lifting fixture located on the panel 1.

[0023] The thermocouple elastic buffer lifting fixture is the core design of this utility model. It is composed of a spherical contact head, a first elastic mechanism, and a second elastic mechanism. The thermocouple clamp 3 is located above the optical module mounting slot 2 of the panel 1 through the first elastic mechanism, while the spherical contact head is located above the thermocouple clamp 3 through the second elastic mechanism. The spherical contact head is used to contact the bottom cover 501 of the nozzle 5 of the heat flow meter and descends with the nozzle 5 so that the thermocouple 4 comes into contact with the surface of the optical module. The elastic force of the second elastic mechanism is greater than that of the first elastic mechanism.

[0024] Further integration Figures 1-6 As shown, the first elastic mechanism includes a crossbeam 6 spanning the optical module mounting slot 2. The crossbeam 6 has symmetrical longitudinal positioning holes at both ends. First screws 7 are inserted into the positioning holes to fix the crossbeam 6 to the panel 1. Each first screw 7 is fitted with a first spring 8 that abuts against the crossbeam 6 and the panel 1. The thermocouple clamp 3 is fixed to the middle of the crossbeam 6 by a positioning screw 9. The top of the positioning screw 9 has a screw hole.

[0025] The second elastic mechanism includes a movable sleeve 10, which has a bottom wall. The bottom wall is fixed to the positioning screw 9 by a second screw 11 that passes through a screw hole at the top of the positioning screw 9. A second spring 12 is fitted on the second screw 11 and abuts against the bottom of the movable sleeve 10 and the top of the positioning screw 9. The elastic force of the second spring 12 is greater than that of the first spring 8. The omnidirectional ball contact head includes an omnidirectional ball base 13 and an omnidirectional ball 14 embedded thereon. The omnidirectional ball base 13 is fixed to the top of the movable sleeve 10.

[0026] In this embodiment, the panel 1 is provided with two adjustment blocks 15 symmetrically distributed on both sides of the optical module mounting slot 2. The two ends of the crossbeam 6 are fixed to the two adjustment blocks 15 respectively by passing through the first plug screws 7. The first spring 8 is abutted between the crossbeam 6 and the corresponding adjustment block 15. Each adjustment block 15 is provided with a row of positioning screw holes 1501 distributed parallel to the optical module mounting slot 2. The row of positioning screw holes 1501 is composed of four positioning screw holes 1501 evenly distributed.

[0027] Meanwhile, each adjustment block 15 has two elongated holes 1502 arranged side by side, perpendicular to the optical module mounting slot 2, for inserting adjustment block fixing screws 16 to fix the adjustment block 15 to the panel 1.

[0028] In this embodiment, the thermocouple clamp 3 has a clamp elongated hole 301 extending along the length direction of the optical module mounting slot 2. The positioning screw 9 passes through the clamp elongated hole 301 to fix the thermocouple clamp 3 to the crossbeam 6.

[0029] The working principle of this utility model is as follows: Similar to conventional technology, in this utility model, the panel 1 is placed below the bottom cover 501 of the nozzle 5 of the heat flow meter, and the optical module to be calibrated is installed in the optical module mounting slot 2.

[0030] When temperature calibration begins, the nozzle 5 of the heat flow meter descends vertically. When the bottom cover 501 of the nozzle 5 contacts the omnidirectional ball contact head on top of the thermocouple elastic buffer lifting fixture, the first elastic mechanism is compressed first due to the greater elastic force of the second elastic mechanism than the first elastic mechanism. This means the two first springs 8 are compressed, and the crossbeam 6, along with the thermocouple clamp 3 on it, descends, causing the thermocouple 4 to contact the surface of the optical module under test. Specifically, as follows... Figures 3-6 As shown, the descent of nozzle 5 immediately stops. The main function of the second elastic mechanism under pressure is to act as a buffer, preventing the nozzle 5 of the heat flow meter from making rigid contact with the thermocouple elastic buffer lifting fixture, which could damage the fixture. Similarly, the elasticity of the second elastic mechanism can also offset the impact on the thermocouple elastic buffer lifting fixture as a whole when the nozzle 5 descends excessively, preventing damage to the thermocouple 4 below.

[0031] After the test is completed, the nozzle 5 of the heat flow meter is raised. Due to the removal of pressure, the temperature-sensing thermocouple 4 and the universal ball contact head are reset under the action of the reset elastic force of the first elastic mechanism and the second elastic mechanism.

[0032] Of course, the above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. In addition to the above embodiments, this utility model may have other implementation methods. All technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by this utility model.

Claims

1. A temperature calibration device for an optical module used in conjunction with a heat flow meter, comprising a panel (1) having an optical module mounting slot (2) and a temperature-sensing thermocouple (4) mounted on a temperature-sensing thermocouple clamp (3), characterized in that It also includes a thermocouple elastic buffer lifting fixture on the panel (1), which includes a spherical contact head, a first elastic mechanism and a second elastic mechanism. The thermocouple clamp (3) is located above the optical module mounting slot (2) of the panel (1) through the first elastic mechanism, while the spherical contact head is located above the thermocouple clamp (3) through the second elastic mechanism. The spherical contact head is used to contact the bottom cover (501) of the nozzle (5) of the heat flow meter and descends as the nozzle (5) descends, so that the thermocouple (4) comes into contact with the surface of the optical module. The elastic force of the second elastic mechanism is greater than that of the first elastic mechanism.

2. The optical module temperature calibration device for use with a heat flow meter according to claim 1, characterized in that... The first elastic mechanism includes a crossbeam (6) spanning the optical module mounting slot (2). The crossbeam (6) has symmetrical longitudinal positioning holes at both ends. The crossbeam (6) is fixed to the panel (1) by passing through the positioning holes with first screws (7). Each first screw (7) is fitted with a first spring (8) that abuts against the crossbeam (6) and the panel (1). Thermocouple clamp (3) is fixed to the middle of the crossbeam (6) by positioning screws (9). The top of the positioning screws (9) has a screw hole.

3. The optical module temperature calibration device for use with a heat flow meter according to claim 2, characterized in that... The second elastic mechanism includes a movable sleeve (10) having a bottom wall, which is fixed to the positioning screw (9) by a second plug screw (11) that passes through a screw hole at the top of the positioning screw (9). A second spring (12) is fitted on the second plug screw (11) and abuts against the bottom of the movable sleeve (10) and the top of the positioning screw (9). The elastic force of the second spring (12) is greater than that of the first spring (8). The omnidirectional ball contact head includes an omnidirectional ball base (13) and an omnidirectional ball (14) embedded thereon. The omnidirectional ball base (13) is fixed to the top of the movable sleeve (10).

4. The optical module temperature calibration device for use with a heat flow meter according to claim 2, characterized in that... The panel (1) is provided with two adjustment blocks (15) symmetrically distributed on both sides of the optical module mounting slot (2). The two ends of the crossbeam (6) are fixed to the two adjustment blocks (15) respectively by passing through the first plug screw (7). The first spring (8) abuts between the crossbeam (6) and the corresponding adjustment block (15). Each adjustment block (15) is provided with a row of positioning screw holes (1501) distributed parallel to the optical module mounting slot (2). The row of positioning screw holes (1501) is composed of two or more positioning screw holes (1501) evenly distributed.

5. The optical module temperature calibration device for use with a heat flow meter according to claim 4, characterized in that... Each adjustment block (15) has two or more adjustment block elongated holes (1502) arranged side by side, perpendicular to the optical module mounting slot (2), for inserting adjustment block fixing screws (16) to fix the adjustment block (15) to the panel (1).

6. A temperature calibration device for an optical module used in conjunction with a heat flow meter, as described in claim 1 or 2, characterized in that... The thermocouple clamp (3) has a clamp elongated hole (301) extending along the length direction of the optical module mounting slot (2). The positioning screw (9) is inserted into the clamp elongated hole (301) to fix the thermocouple clamp (3) onto the crossbeam (6).

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