Testing jig and testing equipment

Abstract

The utility model relates to a jig for testing. The jig comprises a base; the bearing mechanism comprises a middle plate and a guide seat, the middle plate is provided with a containing groove used for bearing a to-be-tested product, the middle plate is provided with a first limiting groove communicated with the containing groove, and the guide seat is provided with a second limiting groove communicated with the containing groove; the height of the first end of the first limiting groove is matched with that of the first end of a to-be-detected product; the testing mechanism comprises a plurality of testing terminals, the first ends of the testing terminals are arranged on the base, and the second ends of the testing terminals penetrate through the base and the middle plate and extend to the second ends of the first limiting groove and the second limiting groove. According to the utility model, through the above arrangement, possible mutual interference and winding among the wires can be avoided, crosstalk among the terminals is prevented, and the test accuracy is further improved.

Description

Technical Field

[0001] This utility model relates to the technical field of antenna testing devices, and in particular to a testing fixture and testing equipment. Background Technology

[0002] Accurate radio frequency (RF) testing is a crucial step in the production and R&D of electronic devices. When performing RF testing on products under test, especially... Figure 1 The product under test 1 shown includes a first end 11 and a second end 22. The first end and the second end each have external wires 1. During testing, the product under test needs to be fixed to ensure that the test terminals can make good contact with the product under test in order to achieve accurate and reliable testing.

[0003] However, some existing test fixtures may have the following problems in practical use: insufficient positioning of the product under test, which affects the accuracy of the test results; and unreasonable limitation of the product wires, which can easily cause mutual interference or tangling of the wires, affecting the test effect. Therefore, in order to improve the accuracy and reliability of RF testing, it is necessary to design a new type of test fixture to solve the above problems. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the problem that the positioning of the product to be tested is not accurate enough in the prior art, which affects the accuracy of the test results, and the unreasonable limitation of the product wires can easily cause mutual interference or tangling of the wires, thus affecting the test effect. In this way, a test fixture and test equipment are provided.

[0005] To solve the above-mentioned technical problems, this utility model provides a testing fixture, comprising:

[0006] Base;

[0007] The supporting mechanism includes: an intermediate plate and a guide seat. The intermediate plate has a receiving groove for supporting the product to be tested. The intermediate plate has a first limiting groove communicating with the receiving groove. The guide seat has a second limiting groove communicating with the receiving groove. The height of the first end of the first limiting groove is adapted to the first end of the product to be tested. The height of the first end of the second limiting groove is adapted to the second end of the product to be tested. The heights of the second ends of the first limiting groove and the second limiting groove are equal.

[0008] The testing mechanism includes multiple test terminals, with the first ends of the multiple test terminals respectively disposed on the base and the second ends passing through the base and the intermediate plate and extending to the second ends of the first limiting groove and the second limiting groove.

[0009] In one embodiment of this utility model, the guide seat is disposed on the base near the second wire to be connected. The guide seat has an inclined surface, and the second limiting groove is opened along the inclined surface. The height of the inclined surface gradually increases along the direction from the second end of the second limiting groove toward the first end.

[0010] In one embodiment of this utility model, the length of the first limiting groove projected vertically onto the plane where the middle plate is located is a first length, and the length of the second limiting groove projected vertically onto the plane where the middle plate is located is a second length, wherein the first length is greater than the second length.

[0011] In one embodiment of the present invention, the center lines of the vertical projections of the second limiting groove and the first limiting groove onto the plane where the intermediate plate is located have an angle, and the center line of the second limiting groove gradually moves away from the first limiting groove from its first end to its second end.

[0012] In one embodiment of this utility model, the base has a first through hole, the intermediate plate has a second through hole, the first through hole and the second through hole are coaxially arranged and a limiting shaft passes through them.

[0013] In one embodiment of this utility model, a bushing is embedded in the second through hole, and the inner diameter of the bushing is equal to the inner diameter of the first through hole and both are adapted to the limiting shaft.

[0014] In one embodiment of the present invention, a cover plate is also included, which is capable of abutting against the second end of the test terminal.

[0015] In one embodiment of this utility model, the intermediate plate is provided with a tapered groove, and the cover plate is provided with a positioning post, which is adapted to be inserted into the tapered groove.

[0016] In one embodiment of the present invention, the second end of the test terminal protrudes from the plane of the intermediate plate, and the cover plate is able to abut against the second end of the test terminal and has a gap with the intermediate plate.

[0017] This utility model also provides a testing device, including: a network analyzer; and a testing fixture as described above, wherein the network analyzer is connected to the first end of the testing terminal.

[0018] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0019] The present invention discloses a test fixture that receives the test product through a positioning slot in the middle plate, limits the wire at the first end of the test product through a first limiting slot, and limits the wire at the second end of the test product through a second limiting slot on the guide seat. Through adaptation with the wire, the middle ends of the wires are positioned at the same height, allowing them to connect to the test terminals located on the middle plate in the same plane. External testing instruments connect to the first end of the test terminals on the base. The second end of the test terminals, extending to the second end of the limiting slot, makes conductive contact with the corresponding test points on the wires at both ends of the test product in the limited state, thereby performing radio frequency testing on the test product. This ensures stable conductive contact between the test terminals and the test points on the test product wires, improving test accuracy. Furthermore, the fixture rationally arranges the wire positions, avoiding potential mutual interference and tangling between wires, and preventing crosstalk between terminals, further improving test accuracy. Attached Figure Description

[0020] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0021] Figure 1 This is a structural schematic diagram of the existing product to be tested;

[0022] Figure 2 This is a schematic diagram of the structure of the testing fixture of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the intermediate plate of this utility model;

[0024] Figure 4 This is a cross-sectional view of the testing fixture of this utility model.

[0025] Explanation of reference numerals in the accompanying drawings: 1. Product under test; 11. First end; 12. Second end; 13. Wire; 2. Base; 3. Intermediate plate; 4. Cover plate; 5. Limiting shaft; 6. Bushing; 7. Receiving groove; 8. Guide seat; 9. Second through hole; 10. Tapered groove; 11. Second limiting groove; 12. First limiting groove; 13. Test terminal; 14. First clearance groove; 15. Second clearance groove; 16. Protrusion. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention. Example

[0027] Reference Figures 2-4 As shown, a testing fixture of this utility model includes:

[0028] Base 2;

[0029] The supporting mechanism includes: an intermediate plate 3 and a guide seat 8. The intermediate plate 3 has a receiving groove 7 for supporting the product to be tested. The intermediate plate 3 has a first limiting groove 12 communicating with the receiving groove 7. The guide seat 8 has a second limiting groove 11 communicating with the receiving groove 7. The height of the first end 11 of the first limiting groove 12 is adapted to the first end 11 of the product to be tested 1. The height of the first end 11 of the second limiting groove 11 is adapted to the second end 12 of the product to be tested 1. The heights of the first limiting groove 12 and the second end 12 of the second limiting groove 11 are equal.

[0030] The testing mechanism includes multiple test terminals 13, with the first ends 11 of the multiple test terminals 13 respectively disposed on the base 2, and the second ends 12 passing through the base 2 and the intermediate plate 3 and extending to the second ends 12 of the first limiting groove 12 and the second limiting groove 11.

[0031] The present invention discloses a test fixture, which uses the receiving groove 7 of the intermediate plate 3 to position and receive the test product. The first limiting groove 12 limits the wire 13 of the first end 11 of the test product 1. The second limiting groove 11 on the guide seat 8 is used to limit the wire 13 of the second end 12 of the test product 1. By adapting to the wire 13, the middle ends of the wire 13 are at the same height and can be connected to the test terminal 13 located on the intermediate plate 3 in the same plane. The external test instrument is connected to the first end 11 of the test terminal 13 on the base 2. The second end 12 of the test terminal 13 extends to the second end 12 of the limiting groove and makes conductive contact with the corresponding test points on the wires 13 at both ends of the test product 1 in the limited state, thereby performing radio frequency testing on the test product 1.

[0032] Reference Figure 2As shown, the first end 11 of the first limiting groove 12 and the second limiting groove 11 is closer to the product 1 to be tested, and the second end 12 is closer to the base 2. The first end 11 of the product 1 to be tested is the lower end, and the second end 12 is the upper end. The guide seat 8 is disposed on the base 2 near the second wire 13 to be connected. The guide seat 8 has an inclined surface. The second limiting groove 11 is opened along the inclined surface. The height of the inclined surface gradually increases along the direction from the second end 12 of the second limiting groove 11 toward the first end 11. When the wire 13 is placed into the guide seat 8, it moves along the inclined surface. The wire 13 is placed into the second limiting groove 11 along the second limiting groove 11, so that the first end 11 and the second end 12 of the product under test 1 are connected to the second end 12 of the test terminal 13 through the wire 13. In this embodiment, the height of the first end 11 of the second limiting groove 11 is greater than the height of the second end 12, and the height of the second end 12 of the second limiting groove 11 is adapted to the height of the second end 12 of the product under test 1 that is snapped onto the intermediate plate 3. Both ends of the first limiting groove 12 and the first end 11 of the second limiting groove 11 are adapted to the height of the first end 11 of the product under test 1.

[0033] Reference Figure 3 As shown, the length of the first limiting groove 12 projected vertically onto the plane of the middle plate 3 is the first length, and the length of the second limiting groove 11 projected vertically onto the plane of the middle plate 3 is the second length. The first length is greater than the second length. When the length of the wire 13 connected to the second end 12 and the first end 11 of the product under test is the same, the distance that the inclined wire 13 in the second limiting groove 11 extends on the middle plate 3 is less than the distance that the horizontal wire 13 in the first limiting groove 12 extends.

[0034] The center lines of the vertical projections of the second limiting groove 11 and the first limiting groove 12 on the plane where the intermediate plate 3 is located have an angle. The center line of the second limiting groove 11 gradually moves away from the first limiting groove 12 from its first end 11 to its second end 12. When limiting the product 1 to be tested, the position of the wire 13 can be arranged more reasonably, and the distance between the wire 13 terminal and the test terminal 13 can be increased. This not only avoids possible mutual interference and tangling between the wires 13, but also prevents crosstalk between terminals.

[0035] Reference Figures 2-4 As shown, the base 2 has a first through hole, and the intermediate plate 3 has a second through hole 9. The first through hole and the second through hole 9 are coaxially arranged and a limiting shaft 5 passes through them. The bottom end of the limiting shaft 5 is fixed on the base 2, and the limiting shaft 5 passes through the coaxial first through hole and the second through hole 9, connecting the base 2 and the intermediate plate 3 together. When the intermediate plate 3 is placed on the base 2, the assembly accuracy is improved by the cooperation of the second through hole 9 and the limiting shaft 5. The end of the limiting shaft 5 also has a narrowed arc surface for guidance.

[0036] A bushing 6 is embedded in the second through hole 9. The inner diameter of the bushing 6 is equal to the inner diameter of the first through hole and both are adapted to the limiting shaft 5. This reduces wear caused by direct contact between the limiting shaft 5 and the intermediate plate 3, extending the service life of the test fixture. Simultaneously, the presence of the bushing 6 makes the insertion of the limiting shaft 5 into the through hole smoother, reducing frictional resistance and improving assembly efficiency.

[0037] Reference Figure 2 , Figure 4 As shown, in order to facilitate the removal and assembly of the base 2, the intermediate plate 3 and the cover plate 4, a first clearance groove 14 is provided on the base 2, a second clearance groove 15 is provided on the cover plate 4, and a protrusion 16 is also provided at the bottom of the cover plate 4, which can abut against the test terminal 13.

[0038] It also includes a cover plate 4, which can abut against the second end 12 of the test terminal 13. The cover plate 4 is placed in the corresponding position so that it can abut against the second end 12 of the test terminal 13. In this way, the cover plate 4 can fix the second end 12 of the test terminal 13, preventing it from shifting or loosening during the test, thereby ensuring that the test terminal 13 and the test point on the wire 13 of the product under test can have stable conductive contact, improving the accuracy and reliability of the test.

[0039] Reference Figure 3 As shown, the intermediate plate 3 has a tapered groove 10, and the cover plate 4 is provided with a positioning post. The positioning post is adapted to be inserted into the tapered groove 10. When installing the cover plate 4, align the positioning post of the cover plate 4 with the tapered groove 10 of the intermediate plate 3, and then insert it. The tapered groove 10 is an outwardly expanding trumpet shape. The shape of the tapered groove 10 guides the positioning post during insertion, ensuring that the cover plate 4 can be accurately installed on the intermediate plate 3. After the positioning post is fully inserted, the cover plate 4 and the intermediate plate 3 are precisely positioned and connected, which can effectively prevent the cover plate 4 from shifting or shaking during use, ensuring the stability and reliability of the test fixture. For disassembly, simply pull the positioning post out of the tapered groove 10.

[0040] The second end 12 of the test terminal 13 protrudes from the plane of the intermediate plate 3. The cover plate 4 can abut against the second end 12 of the test terminal 13 and has a gap with the intermediate plate 3. At the same time, there is a certain distance between the cover plate 4 and the intermediate plate 3 to form a gap, so as to avoid direct contact between the cover plate 4 and the intermediate plate 3, which would cause interference or affect the normal operation of the test terminal 13. It can also provide clearance for the guide seat 8. Since there is a gap between the cover plate 4 and the intermediate plate 3, it will not affect the contact between the test terminal 13 and the wire 13 of the product under test 1, nor will it interfere with other components or structures on the intermediate plate 3, thereby ensuring the smooth progress of the test. Example

[0041] This embodiment provides a testing device, including:

[0042] Network analyzer;

[0043] As described in Example 1, a test fixture is provided in which the network analyzer is connected to the first end 11 of the test terminal 13.

[0044] This embodiment provides a testing device that connects a network analyzer to the first terminal 11 of a test terminal 13. The network analyzer sends a test signal to the test terminal 13, which is then transmitted to the product under test (DUT) 1 via the second terminal 12 of the test terminal 13 and the wire 13. The DUT 1 responds to the test signal and transmits the feedback signal back to the network analyzer via the wire 13 and the test terminal 13. The network analyzer analyzes and processes the feedback signal to obtain the relevant test parameters and performance indicators of the DUT 1, thus completing the test of the DUT 1.

[0045] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A testing fixture, characterized in that, include: Base; The supporting mechanism includes: an intermediate plate and a guide seat. The intermediate plate has a receiving groove for supporting the product to be tested. The intermediate plate has a first limiting groove communicating with the receiving groove. The guide seat has a second limiting groove communicating with the receiving groove. The height of the first end of the first limiting groove is adapted to the first end of the product to be tested. The height of the first end of the second limiting groove is adapted to the second end of the product to be tested. The heights of the second ends of the first limiting groove and the second limiting groove are equal. The testing mechanism includes multiple test terminals, with the first ends of the multiple test terminals respectively disposed on the base and the second ends passing through the base and the intermediate plate and extending to the second ends of the first limiting groove and the second limiting groove.

2. The testing fixture according to claim 1, characterized in that: The guide seat is disposed on the base near the second wire to be connected. The guide seat has an inclined surface, and the second limiting groove is opened along the inclined surface. The height of the inclined surface gradually increases along the direction from the second end of the second limiting groove toward the first end.

3. A testing fixture according to claim 1, characterized in that: The length of the first limiting groove projected vertically onto the plane of the middle plate is the first length, and the length of the second limiting groove projected vertically onto the plane of the middle plate is the second length, and the first length is greater than the second length.

4. A testing fixture according to claim 1, characterized in that: The center lines of the second limiting groove and the first limiting groove on the plane where the intermediate plate is located have an angle, and the center line of the second limiting groove gradually moves away from the first limiting groove from its first end to its second end.

5. A testing fixture according to claim 1, characterized in that: The base has a first through hole, and the intermediate plate has a second through hole. The first through hole and the second through hole are coaxially arranged and a limiting shaft passes through them.

6. A testing fixture according to claim 5, characterized in that: The second through hole is fitted with a bushing, the inner diameter of which is equal to the inner diameter of the first through hole and both are adapted to the limiting shaft.

7. A testing fixture according to claim 1, characterized in that: It also includes a cover plate that can abut against the second end of the test terminal.

8. A testing fixture according to claim 7, characterized in that: The intermediate plate has a tapered groove, and the cover plate has a positioning post, which is adapted to be inserted into the tapered groove.

9. A testing fixture according to claim 7, characterized in that: The second end of the test terminal protrudes from the plane of the intermediate plate, and the cover plate can abut against the second end of the test terminal and has a gap with the intermediate plate.

10. A testing device, characterized in that, include: Grid Analyzer ； A test fixture as described in any one of claims 1-9, wherein the mesh analyzer is connected to the first end of the test terminal.

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