DTU test fixture

Abstract

The utility model discloses a DTU test clamp, and belongs to the technical field of wireless communication equipment detection. The DTU test fixture comprises a base, a plurality of test units are arranged on the base, the test units are uniformly distributed along the length direction of the base, and each test unit comprises an antenna adapter, a fixing groove for fixing a DTU, a probe needle cylinder and a push-pull clamp which are sequentially arranged along the width direction of the base; a sliding block is arranged at the bottom of the probe needle cylinder, sliding guide rails are oppositely arranged on the base, and the sliding block is in sliding connection with the sliding guide rails; a fixing support is arranged at the bottom of the push-pull clamp, and the telescopic end of the push-pull clamp is connected with the side wall of the probe needle cylinder. Stable connection of the DTU equipment and the related test parts can be achieved, and the problem that existing test equipment cannot effectively fix the DTU equipment and the related test parts is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless communication equipment detection, in particular to a wireless terminal equipment test fixture. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] A data transfer unit (DTU) is a wireless terminal device that converts serial port data into IP data or converts IP data into serial port data and transmits it through a wireless communication network. It is widely used in industries such as electricity, water conservancy, and municipal administration.

[0004] In the actual production process, in order to ensure the stability of DTU use and improve product quality, DTU needs to be tested. In the test environment, considering the particularity of DTU itself, the tester needs to hold the product for testing. However, since the product has conductive materials such as metal shell materials, holding the product for testing will affect the product's protection ability and the overall performance of the product, which may cause quality risks.

[0005] In addition, testers hold the product for testing and need to manually plug and unplug the test tooling during testing. At this time, the uncertainty of manual plugging and unplugging, such as misalignment of the DTU product and the test work, will cause wear and tear on the DTU product.

[0006] In the utility model patent with patent application number 202222098967.0, the installation and fixation of the test terminal body are achieved by using a mounting plate and a locking part, but it only considers the fixation of the device itself, and does not consider the stability of the connection between the DTU device and other test components, and cannot guarantee the stability of the test environment. Utility Model Content

[0007] In view of the deficiencies in the prior art, the purpose of the embodiments of the utility model is to provide a DTU test fixture to achieve stable placement of the DTU product and stable connection between the DTU product and other test components, thereby ensuring the stability of the test environment.

[0008] In order to achieve the above purpose, the embodiment of the utility model provides the following technical solutions:

[0009] A DTU test fixture comprises a base, a plurality of test units are arranged on the base, the test units are evenly distributed along the length direction of the base, and the test units comprise an antenna adapter, a fixing groove for fixing the DTU, a probe syringe and a push-pull clamp arranged in sequence along the width direction of the base;

[0010] A slider is arranged at the bottom of the probe syringe, a sliding guide rail is arranged on the base, and the slider is slidably connected to the sliding guide rail; a fixed bracket is arranged at the bottom of the push-pull clamp, and the telescopic end of the push-pull clamp is connected to the side wall of the probe syringe.

[0011] By adopting the above technical solution, the DTU product is placed in the fixed groove, and the push-pull clamp is used to push the probe syringe to move along the sliding guide rail, so that the probe in the probe syringe is in accurate and close contact with the DTU product, and the DTU product is in accurate and close contact with the antenna adapter, ensuring a stable connection between the components for further testing.

[0012] In some embodiments, a bakelite block is disposed at the bottom of the fixing bracket.

[0013] By adopting the above technical solution, if the height of the fixed bracket is not enough to connect the push-pull clamp with the probe syringe, a bakelite block is placed underneath to enable the push-pull clamp to effectively contact with the probe syringe.

[0014] In some embodiments, the base includes a fixture base, a motherboard test socket arranged on the fixture base, and a motherboard fixing socket arranged on the motherboard test socket, the fixing groove is arranged on the motherboard fixing socket, and the probe syringe and the push-pull clamp are arranged on the fixture base.

[0015] In some embodiments, a fixing plate is vertically disposed on one side of the mainboard fixing seat, and the antenna adapter is horizontally disposed on the fixing plate via a spring screw.

[0016] By adopting the above technical solution, after the DTU product is placed in the fixing slot, the push-pull clamp is used to push the DTU product into contact with the antenna adapter, and the spring screw is used to realize the rebound of the antenna adapter to make it in close contact, thereby ensuring good signal test quality.

[0017] In some embodiments, an antenna is further included, and the antenna adapter is connected to the antenna via a radio frequency line.

[0018] By adopting the above technical solution, the operation during testing is made more convenient.

[0019] In some embodiments, the antenna is disposed on one side of the base.

[0020] By adopting the above technical solution, only one fixed antenna needs to be installed during use to ensure signal quality.

[0021] In some embodiments, a spring probe is disposed in the probe barrel.

[0022] By adopting the above technical solution, a certain buffer is provided for the contact between the probe and the DTU product, thereby avoiding damage to the appearance of the DTU product due to poor matching when the probe and the DTU product are connected, thereby preventing the hidden danger of poor appearance.

[0023] In some embodiments, an optical fiber channel is provided between the base and the fixing groove, the optical fiber channel is located below the LED light of the DTU product, and an optical fiber is provided in the optical fiber channel.

[0024] During the test, the DTU product is placed on the fixed slot. At this time, the LED lamp beads of the DTU product are located on the back of the device, which is not convenient for observation. By adopting the above technical solution, the light of the LED lamp is transmitted to the base through optical fiber for display, and there is no need to frequently flip the DTU product.

[0025] In some embodiments, a main power supply and a multi-way switching power supply are disposed at the bottom of the base, and the main power supply is electrically connected to the switching power supplies respectively.

[0026] By adopting the above technical solution, each test unit can power the DTU product through the corresponding switching power supply without affecting each other.

[0027] In some embodiments, the fixing bracket is a triangular structure.

[0028] By adopting the above technical solution, a triangular fixed bracket is used to firmly support the push-pull clamp.

[0029] The technical solution provided in the embodiment of the utility model has at least the following technical effects or advantages:

[0030] 1. The technical solution provided by the utility model realizes a stable connection between the DTU product and the test component through the structural setting of the DTU test fixture, thereby ensuring the stability of the test environment; at the same time, no manual assistance is required, thereby avoiding static damage to the DTU product caused by contact with operators.

[0031] 2. The technical solution provided by the utility model is that the DTU product is connected to the antenna through the antenna adapter and the adapter cable. There is no need to plug and unplug the antenna during use, which ensures the signal quality of the DTU product during the test and greatly improves its test efficiency.

[0032] 3. The technical solution provided by the utility model transmits the light of the status display LED light on the DTU product to the LED light outlet of the test base through optical fiber, which is convenient for operators to observe the actual product test and improve the test efficiency.

[0033] 4. The technical solution provided by the utility model can realize the testing of multiple DTU products at the same time, thereby improving the testing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0035] Figure 1 It is a front view schematic diagram provided by an embodiment of the utility model;

[0036] Figure 2 It is a side view schematic diagram provided by an embodiment of the utility model;

[0037] Figure 3 It is a top view schematic diagram provided by an embodiment of the utility model;

[0038] In the figure: 1. Fixture base; 2. Mainboard test socket; 3. Antenna adapter; 4. Mainboard fixing socket; 5. Fixing plate; 6. Fixing slot; 7. Probe syringe; 8. Slider; 9. Push-pull clamp; 10. Fixing bracket; 11. Bakelite block; 12. Sliding guide rail.

[0039] In order to show the positions of various parts, the distances or sizes between them are exaggerated and the schematic diagram is for reference only. DETAILED DESCRIPTION

[0040] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0041] The existing DTU test terminal cannot achieve a stable connection between the DTU product and the DTU product and each test component, and during the test process, there is uncertainty in manual plugging and unplugging. If the DTU product and the test tooling are not aligned, it will cause wear and tear on the product and the test tooling. Therefore, this embodiment provides a DTU test fixture.

[0042] Combination Figure 1-Figure 3 The DTU test fixture includes a fixture base 1, a mainboard test socket 2 is installed on the top of the fixture base 1, a mainboard fixing socket 4 is installed on the top of the mainboard test socket 2, and a plurality of fixing slots 6 for placing DTU products are provided on the mainboard fixing socket 4, and the plurality of fixing slots 6 are evenly distributed along the length direction of the mainboard fixing socket 4. Each fixing slot 6 is provided with an antenna, an antenna adapter 3, a probe syringe 7 and a push-pull clamp 9, which together with the fixing slot 6 form a test unit for the DTU product. The probe syringe 7 and the push-pull clamp 9 are installed on the fixture base 1, and the antenna, the antenna adapter 3, the fixing slot 6, the probe syringe 7 and the push-pull clamp 9 are arranged in sequence along the width direction of the fixture base 1, and the antenna is connected to the antenna adapter 3 through a radio frequency line.

[0043] A vertically arranged fixing plate 5 is connected to one side of the mainboard fixing seat 4, and the antenna adapter 3 is horizontally installed on the fixing plate 5 by means of a spring screw; when the DTU product is placed in the fixing groove 6, the setting of the spring screw allows the antenna adapter 3 to rebound under the action of force and to be in close contact with the DTU product. A sliding guide rail 12 is installed on the fixture base 1, and the sliding guide rail 12 is located below the probe syringe 7. A slider 8 is fixed to the bottom of the probe syringe 7, and the slider 8 is slidably connected to the sliding guide rail 12; a fixed bracket 10 is fixed to the bottom of the push-pull clamp 9, and the telescopic end of the push-pull clamp 9 is connected to the side wall of the probe syringe 7. Under the power of the push-pull clamp 9, the slider 8 can drive the probe syringe 7 to slide along the sliding guide rail 12. The height of the antenna adapter 3 matches the height of the antenna connection end of the DTU product placed in the fixing groove 6, and the height of the probe syringe 7 matches the height of the probe connection end of the DTU product placed in the fixing groove 6, so that the antenna adapter 3 and the DTU product, and the probe syringe 7 and the DTU product can be exactly matched and connected.

[0044] If the height of the fixed bracket 10 is not enough to connect the push-pull clamp 9 to the probe syringe 7 , a bakelite block 11 is placed at the bottom of the fixed bracket 10 so that the telescopic end of the push-pull clamp 9 can abut against the side wall of the probe syringe 7 .

[0045] A plurality of spring probes are installed in the probe barrel 7 to provide a certain buffer for the contact between the probe and the DTU product. One end of the spring probe is used to connect to the DTU product, and the other end of the spring probe is connected to the power supply line and the communication line. The side wall of the fixture base 1 is installed with a power supply interface and a communication interface, and the bottom of the fixture base 1 is installed with a main power supply and a multi-way switching power supply. The number of switching power supplies matches the number of test units. The main power supply is electrically connected to the switching power supply, and the switching power supply is electrically connected to the corresponding probe through the power supply line. The communication interface is connected to the communication line to improve the operating efficiency during the test.

[0046] In some embodiments, in order to facilitate observation, a plurality of LED light-emitting ports are opened on the mainboard test socket 2, and an optical fiber channel is opened through the LED light-emitting port to penetrate into the fixed groove 6. The optical fiber channel is located below the LED lamp beads of the DTU product. Optical fibers are placed in the optical fiber channel to transmit the light emitted by the LED lamp beads to the LED light-emitting port, which is convenient for testers to observe.

[0047] In this embodiment, the number of test units is 8, the antenna adapter is an SMA antenna adapter, the fixing bracket 10 is a triangular structure, and the push-pull clamp 9 is a common push-pull clamp 9 in the prior art, and its specific structure is not repeated here.

[0048] The working method of this embodiment is as follows:

[0049] When in use, place the DTU product in the fixing slot 6. At this time, one end of the DTU product is connected to the antenna adapter 3. Use the push-pull clamp 9 to push the probe syringe 7 to move it to contact the other end of the DTU product, and at the same time provide a fixing force for the connection between the probe syringe 7, the DTU product and the antenna adapter 3, so that the connection between the three is stable.

[0050] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A DTU test fixture, characterized in that: It includes a base, on which a plurality of test units are arranged, the test units are evenly distributed along the length direction of the base, and the test units include an antenna adapter, a fixing groove for fixing the DTU, a probe syringe and a push-pull clamp arranged in sequence along the width direction of the base; A slider is arranged at the bottom of the probe syringe, a sliding guide rail is arranged on the base, and the slider is slidably connected to the sliding guide rail; a fixed bracket is arranged at the bottom of the push-pull clamp, and the telescopic end of the push-pull clamp is connected to the side wall of the probe syringe.

2. The DTU test fixture according to claim 1, characterized in that: A bakelite block is arranged at the bottom of the fixing bracket.

3. The DTU test fixture according to claim 1, characterized in that: The base includes a fixture base, a motherboard test seat arranged on the fixture base and a motherboard fixing seat arranged on the motherboard test seat, the fixing groove is arranged on the motherboard fixing seat, and the probe syringe and the push-pull clamp are arranged on the fixture base.

4. The DTU test fixture as claimed in claim 3, characterized in that: A fixing plate is vertically arranged on one side of the mainboard fixing seat, and the antenna adapter is horizontally arranged on the fixing plate through a spring screw.

5. The DTU test fixture according to claim 1, characterized in that: It also includes an antenna, and the antenna adapter is connected to the antenna through a radio frequency line.

6. The DTU test fixture as claimed in claim 5, characterized in that: The antenna is arranged on one side of the base.

7. The DTU test fixture according to claim 1, characterized in that: A spring probe is arranged in the probe cylinder.

8. The DTU test fixture according to claim 1, characterized in that: An optical fiber channel is arranged between the base and the fixing groove, the optical fiber channel is located below the LED lamp of the DTU product, and an optical fiber is arranged in the optical fiber channel.

9. The DTU test fixture according to claim 1, characterized in that: A main power supply and a multi-way switch power supply are arranged at the bottom of the base, and the main power supply is electrically connected to the switch power supplies respectively.

10. The DTU test fixture according to claim 1, characterized in that: The fixing bracket is a triangular structure.

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