Radio frequency testing device for 14-pin butterfly laser

Abstract

The utility model discloses a radio frequency testing device for a 14-pin butterfly laser, which belongs to the field of laser testing and comprises a bottom shell, a detection supporting part arranged on the bottom shell, a device to be tested of the laser mounted on the detection supporting part and a supporting frame arranged on the bottom shell. A pressing part for pressing the to-be-detected device onto the detection supporting part is mounted on the supporting frame, an adjusting part is arranged between the pressing part and the supporting frame and is used for adjusting the pressing force applied by the pressing part to a circuit supporting leg of the to-be-detected device, and an elastic pressing block is arranged at the contact part of the pressing part and the to-be-detected device. By arranging the detection supporting part, the pressing part and the adjusting part, it is ensured that the device to be detected can be stably installed on the bottom shell, and the pressure applied to the circuit pins of the device to be detected can be accurately adjusted. Therefore, the test accuracy is improved, the damage to the device to be tested caused by improper pressure is avoided, the application of the elastic pressing block also provides additional protection, and the damage possibly caused by direct contact is prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of laser tester, concretely relates to a radio frequency testing device for 14pin butterfly laser. BACKGROUND

[0002] In the field of optical communication, butterfly lasers are widely used in various high-speed data transmission systems due to their compact size and excellent performance. In particular, 14pin butterfly lasers have multiple electrical connection terminals for providing different power supplies, signal inputs and outputs, and monitoring functions, and are one of the key components in fiber optic communication networks.

[0003] However, with the development of communication technology and the increasing demand for product quality, radio frequency (RF) performance testing of these lasers has become increasingly important. Traditional RF testing methods usually involve manually mounting the laser onto a test fixture and then adjusting it by hand to ensure proper contact and pressure distribution. Due to the precise and sensitive internal structure of 14pin butterfly lasers, improper installation or compression methods can cause irreversible damage, leading to device failure or performance degradation. Moreover, 14pin butterfly lasers do not have RF output ports, making it impossible to directly access RF testing equipment to test RF characteristics. Therefore, the device needs to be soldered to a drive circuit board for testing, and after testing, the laser pins will be bent and residual solder will affect secondary use. Therefore, a compression detection device such as the utility model patent with announcement CN208902383U is disclosed, which is a convenient butterfly laser non-destructive testing device composed of a detection mechanism and a locking mechanism. The locking mechanism is composed of two groups of pin fixing supports, which are arranged side by side, and a laser mounting site is provided between adjacent two groups of pin fixing supports. The pin fixing support includes a base, a terminal row and a pressing plate. A pressing plate insertion slot is formed in the middle of the base, one end of the pressing plate is hinged to one end of the pressing plate insertion slot, and the pressing plate is inserted into the pressing plate insertion slot. The terminal row is fixedly arranged on the base and arranged along the side of the corresponding pressing plate insertion slot.

[0004] However, the compression settings in the prior art cannot change the compression effect, and it is easy to cause poor contact or damage to the laser device pins. Therefore, the present application is proposed. UTILITY MODEL CONTENT

[0005] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a radio frequency testing device for 14pin butterfly lasers. The utility model is realized by the following technical solutions:

[0006] An RF testing device for a 14-pin butterfly laser includes a base housing with a test support on the base housing. A device under test (DUT) of the laser is mounted on the test support. A support frame is also provided on the base housing, and a clamping part is mounted on the support frame to press the DUT onto the test support. An adjustment part is provided between the clamping part and the support frame to adjust the clamping force applied by the clamping part to the circuit pins of the DUT. An elastic pressure block is provided at the contact point between the clamping part and the DUT.

[0007] Preferably, the detection support includes a support platform mounted on the bottom shell, a drive circuit board is mounted on the support platform, and the device under test is mounted on the drive circuit board.

[0008] Preferably, the drive circuit board has an avoidance window at the mounting position of the device under test, and the support platform has a cavity at the mounting position of the device under test to avoid the body of the device under test.

[0009] Preferably, the support frame is a gate-shaped structure, with two legs of the gate-shaped structure installed on both sides of the bottom shell. Guide members are installed at the connection positions of the two legs and the bottom shell. The pressing part includes a pressing block, with both ends of the pressing block slidably disposed in the guide member. An elastic pressing block is provided at the contact part between the pressing block and the device under test.

[0010] Preferably, the clamping block has an avoidance notch facing the device under test, forming a C-shaped structure facing the device under test, and elastic clamping blocks are installed on both sides of the C-shaped structure.

[0011] Preferably, the adjusting part includes a clamping bolt disposed between the clamping block and the support frame, and the clamping bolt is threadedly connected to the support frame.

[0012] Preferably, the guide member includes a guide groove corresponding to the clamping block, and the top end of the guide groove extends away from the clamping block to form a guide surface.

[0013] Preferably, the elastic block is made of insulating material.

[0014] Preferably, the side of the bottom shell is provided with a cable connector and an RF output port that are electrically connected to the drive circuit board.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By incorporating a testing support, clamping section, and adjustment section, the device under test (DUT) is securely mounted on the base housing, and the pressure applied to the DUT's circuit pins can be precisely adjusted. This not only improves testing accuracy but also prevents damage to the DUT caused by improper pressure. The use of elastic pressure blocks provides additional protection against potential damage from direct contact.

[0017] 2. The support platform design with integrated driver circuit board allows the device under test (DUT) to be directly mounted on the circuit board for testing. This simplifies the connection process, improves testing efficiency, and ensures good electrical contact and signal transmission quality.

[0018] 3. By using the clearance window on the drive circuit board and the cavity design on the support platform, space is provided for the device under test, allowing it to be placed naturally without interference from external structures, thereby ensuring the consistency and reliability of test conditions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] In the figure: 1. Bottom shell; 2. Device under test; 3. Support frame; 4. Clamping part; 41. Elastic pressure block; 42. Clamping block; 5. Detection support part; 51. Support platform; 52. Drive circuit board; 6. Guide; 7. Clamping bolt; 8. Cable connector; 9. RF output port. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] like Figure 1 As shown, this embodiment provides an RF testing device for a 14-pin butterfly laser, including a base shell 1. A detection support 5 is provided on the base shell 1, and a device under test (DUT) 2 of the laser is mounted on the detection support 5. A support frame 3 is also provided on the base shell 1. A clamping part 4 is installed on the support frame 3 to press the DUT 2 onto the detection support 5. An adjustment part is provided between the clamping part 4 and the support frame 3 to adjust the clamping force applied by the clamping part 4 to the circuit pin of the DUT 2. An elastic block 41 is provided at the contact part between the clamping part 4 and the DUT 2, and the elastic block 41 presses on the circuit pin of the DUT 2.

[0023] By incorporating the testing support 5, the clamping part 4, and the adjustment part, the device under test (DUT) 2 can be securely mounted on the base shell 1, and the pressure applied to the circuit pins of the DUT 2 can be precisely adjusted. This not only improves the accuracy of the test but also prevents damage to the DUT 2 caused by improper pressure. The application of the elastic pressure block 41 also provides additional protection against damage that may be caused by direct contact.

[0024] Preferably, the detection support 5 includes a support platform 51 mounted on the bottom shell 1, a drive circuit board 52 mounted on the support platform 51, the device under test 2 mounted on the drive circuit board 52, and the circuit pins of the device under test 2 abutting against the contact gold layer of the drive circuit board 52.

[0025] The support platform 51 with driver circuit board 52 allows the device under test (DUT) 2 to be directly mounted on the circuit board for testing. This simplifies the connection process, improves testing efficiency, and ensures good electrical contact and signal transmission quality.

[0026] Preferably, the drive circuit board 52 has an avoidance window at the installation position of the device under test 2, and the support platform 51 has a cavity at the installation position of the device under test 2 to avoid the body of the device under test 2.

[0027] By using the clearance window on the drive circuit board 52 and the cavity design on the support platform 51, space is provided for the device under test 2, allowing it to be placed naturally without interference from external structures, thereby ensuring the consistency and reliability of test conditions.

[0028] Preferably, the support frame 3 has a portal frame structure, with two legs mounted on both sides of the base shell 1. Guide members 6 are installed at the connection points between the two legs and the base shell 1. The clamping part 4 includes a clamping block 42, with both ends of the clamping block 42 slidably disposed within the guide members 6. An elastic pressure block 41 is provided at the contact point between the clamping block 42 and the device under test 2. The portal frame structure of the support frame 3, equipped with guide members 6, allows the clamping block 42 to slide smoothly in the vertical direction, ensuring a uniform distribution of clamping force. This design facilitates rapid loading and unloading of the device under test 2, improving the convenience of testing operations.

[0029] Preferably, the clamping block 42 has a clearance notch facing the device under test 2, forming a C-shaped structure facing the device under test 2, and elastic clamping blocks 41 are installed on both sides of the C-shaped structure. The design of the C-shaped structure and clearance notch of the clamping block 42 further optimizes the clamping method, reduces the pressure concentration points on the surface of the circuit pins, reduces the risk of damage, and makes the clamping more stable and reliable, while ensuring the appearance integrity of the circuit pins and ensuring aesthetics.

[0030] Preferably, the adjusting part includes a clamping bolt 7 disposed between the clamping block 42 and the support frame 3. The clamping bolt 7 is threadedly connected to the support frame 3, allowing for fine adjustment of the clamping force through a simple threaded connection. One end of the bolt passes through the top of the support frame 3 and is equipped with a tightening handle for tightening, while the other end abuts against the top of the clamping block 42. Furthermore, the clamping block 42 is symmetrically arranged along the device under test 2, and the centerline of the clamping bolt 7 passes through the center of the device under test 2 to achieve better clamping effect and distribution of clamping force.

[0031] The guide member 6 includes a guide groove corresponding to the clamping block 42, and the top end of the guide groove extends away from the clamping block 42 to form a guide surface. The guide surface design at the top end of the guide groove helps to reduce frictional resistance, making the up-and-down movement of the clamping block 42 smoother, enhancing the durability and smoothness of operation of the equipment, and facilitating the installation and removal of the clamping block 42.

[0032] Preferably, the elastic pressure block 41 is made of insulating material. Using insulating material effectively avoids short circuits or leakage that may occur during the test, thereby improving the safety of the test and the accuracy of the results.

[0033] The side of the base shell 1 is provided with a cable connector 8 and an RF output port 9 electrically connected to the drive circuit board 52. This facilitates connection to external testing equipment, simplifies wiring, and ensures high-quality transmission of RF signals, which is beneficial for obtaining more accurate test data. Furthermore, the drive circuit board 52 is detachable, making it easy to replace on the support platform 51. It can adapt to the testing of various laser models. Moreover, the elastic pressure block 41 can also be designed to be detachable, allowing for the replacement of different models of elastic pressure blocks 41 to accommodate the different positions of the circuit pins of different laser models.

[0034] The usage process is divided into the following stages:

[0035] Preparation phase: Place the 14-pin butterfly laser to be tested on the driver circuit board 52, ensuring that its circuit pins accurately align with the contact gold layer on the driver circuit board 52. At this point, the laser body should naturally fall into the recess of the support platform 51 without being subjected to additional pressure.

[0036] Install clamping part 4: Move the clamping block 42 to a suitable position so that its C-shaped structure covers part of the device under test 2 but does not contact it, while ensuring that the elastic clamping block 41 is correctly positioned above the circuit pins of the device under test 2.

[0037] Adjusting the clamping force: Use the tightening handle to rotate the clamping bolt 7, gradually increasing the pressure of the clamping block 42 on the circuit support until the appropriate level is reached. The operator can fine-tune the clamping force according to actual needs to obtain the best electrical contact quality.

[0038] Perform the test: After connecting the external test equipment, begin the RF performance test of the 14-pin butterfly laser through cable connector 8 and RF output port 9. During this process, maintain a constant clamping force to ensure consistent test conditions.

[0039] Test Completion: After the test, loosen the clamping bolt 7, remove the clamping block 42, and then take out the laser that has completed the test. Repeat the above steps to continue testing other devices under test 2.

Claims

1. An RF testing device for a 14-pin butterfly laser, comprising a base (1), characterized in that: The bottom shell (1) is provided with a detection support (5), and the device under test (2) of the laser is installed on the detection support (5). The bottom shell (1) is also provided with a support frame (3), and a clamping part (4) is installed on the support frame (3) to press the device under test (2) onto the detection support (5). An adjustment part is provided between the clamping part (4) and the support frame (3) to adjust the clamping force applied by the clamping part (4) to the circuit pin of the device under test (2). An elastic pressure block (41) is provided at the contact part between the clamping part (4) and the device under test (2).

2. The RF testing device for a 14-pin butterfly laser according to claim 1, characterized in that: The detection support (5) includes a support platform (51) mounted on the bottom shell (1), a drive circuit board (52) is mounted on the support platform (51), and the device under test (2) is mounted on the drive circuit board (52).

3. The RF testing device for a 14-pin butterfly laser according to claim 2, characterized in that: The drive circuit board (52) has an avoidance window at the installation position of the device under test (2), and the support platform (51) has a cavity at the installation position of the device under test (2) to avoid the body of the device under test (2).

4. The radio frequency testing device for a 14-pin butterfly laser according to claim 1, characterized in that: The support frame (3) is a gate-shaped structure. The two legs of the gate-shaped structure are installed on both sides of the bottom shell (1). Guide members (6) are installed at the connection positions of the two legs and the bottom shell (1). The pressing part (4) includes a pressing block (42). The two ends of the pressing block (42) are slidably arranged in the guide member (6). An elastic pressing block (41) is provided at the contact part between the pressing block (42) and the device under test (2).

5. The radio frequency testing device for a 14-pin butterfly laser according to claim 4, characterized in that: The clamping block (42) has an clearance notch facing the device under test (2), forming a C-shaped structure facing the device under test (2), and elastic clamping blocks (41) are installed on the two side legs of the C-shaped structure.

6. The radio frequency testing device for a 14-pin butterfly laser according to claim 4, characterized in that: The adjusting part includes a clamping bolt (7) disposed between the clamping block (42) and the support frame (3), and the clamping bolt (7) is connected to the support frame (3) by a thread.

7. The RF testing device for a 14-pin butterfly laser according to claim 4, characterized in that: The guide member (6) includes a guide groove corresponding to the clamping block (42), and the top end of the guide groove extends away from the clamping block (42) to form a guide surface.

8. A radio frequency testing device for a 14-pin butterfly laser according to any one of claims 1-7, characterized in that: The elastic pressure block (41) is made of insulating material.

9. A radio frequency testing device for a 14-pin butterfly laser according to any one of claims 2-7, characterized in that: The bottom shell (1) is provided with a cable connector (8) and an RF output port (9) that are electrically connected to the drive circuit board (52) on the side.

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