CN219737671U

CN219737671U - Balance device testing device based on dual-port network analyzer

Info

Publication number: CN219737671U
Application number: CN202321295923.5U
Authority: CN
Inventors: 冉红雷; 李英青; 董建丽; 张魁; 柳华光; 席善斌; 彭浩; 黄杰
Original assignee: Hebei Beixin Semiconductor Technology Co ltd
Current assignee: Hebei Beixin Semiconductor Technology Co ltd
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2023-09-22
Anticipated expiration: 2033-05-26

Abstract

The utility model provides a balance device testing device based on a dual-port network analyzer, which comprises a base, a circuit board and two crimping assemblies, wherein the base is provided with a plurality of crimping modules; wherein, two ends of the base are respectively provided with a coaxial connector for connecting with a network analyzer, and two balance devices are arranged on the base at intervals; the circuit board is provided with a first conducting circuit for electrically connecting the two balance devices to form an integral tested device and a second conducting circuit for electrically connecting the two test ends of the tested device with the two coaxial connectors respectively; the two crimping assemblies are respectively hinged on the base and are respectively used for compressing the two balance devices. The balance device testing device based on the dual-port network analyzer is simple and convenient to operate, and the balance device testing device does not need to be tested by adopting the multi-port network analyzer to match with a balance testing module, so that the testing difficulty and cost of the balance device can be greatly reduced.

Description

Balance device testing device based on dual-port network analyzer

Technical Field

The utility model belongs to the technical field of electronic component testing, and particularly relates to a balance device testing device based on a dual-port network analyzer.

Background

The electrical performance test of the balance device has high requirements on the network analyzer, the network analyzer needs to be provided with three physical ports, and the corresponding test module is configured to configure the network analyzer into two logic ports, namely a single-ended logic port and a balance mode logic port. For cost performance reasons, most network analyzers on the market are dual-port, i.e. only two physical ports are available, so that the electrical performance of the balance device cannot be directly tested, and even if a multi-port network analyzer (such as three-physical multi-port or four-physical multi-port) is adopted, the balance test module is usually required to be purchased in an additional payment manner, so that the test of the balance device is difficult and high in cost in the current practical situation.

In the process of solving the above-mentioned practical problems, the inventor researches and discovers that the two balance devices are combined to form a form similar to a single-ended device to test, and the electrical performance of the balance device can be obtained after the test result is processed.

Disclosure of Invention

The embodiment of the utility model provides a balance device testing device based on a dual-port network analyzer, which aims to realize the electrical performance test of the balance device by the dual-port network analyzer and reduce the testing difficulty and cost of the balance device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: provided is a balance device testing apparatus based on a dual port network analyzer, comprising:

two ends of the base are respectively provided with a coaxial connector, the two coaxial connectors are respectively used for connecting two ports of the network analyzer, two caulking grooves are distributed at intervals on the part of the top wall of the base between the two coaxial connectors, and each caulking groove is respectively used for caulking and positioning a balancing device;

the circuit board is attached to the base and is provided with two avoidance ports corresponding to the two caulking groove positions respectively, a first conduction circuit for electrically connecting the two balance devices to form an integral tested device and a second conduction circuit for electrically connecting the two test ends of the tested device with the two coaxial connectors respectively;

the two crimping assemblies are hinged to the base respectively and correspond to the two caulking grooves respectively, and are in a pressing state of being downwards overturned to be respectively pressed against one of the balance devices and a releasing state of being upwards overturned to be separated from the balance device.

In one possible implementation, the crimping assembly includes a top plate and a ram; one end of the top plate is hinged with the base, and the other end of the top plate is provided with a connecting arm; when the top plate swings to be parallel to the top wall of the base and is positioned right above the caulking groove, the connecting arm is clamped with the base, and when the connecting arm is separated from the base, the top plate can swing upwards; the pressure head is arranged at the center of the top plate and used for pressing the balance device on the base when the connecting arm is clamped with the base.

In some embodiments, the bottom wall of the pressure head has a recess adapted to receive the body portion of the balancing device, and the portions of the pressure head on either side of the recess are adapted to respectively press against the pins on either side of the balancing device.

The center of the top plate is vertically penetrated with a wire column, one end of the wire column is provided with an operating handle, the wire column is in threaded fit with the top plate, an adjusting disc is arranged between the top plate and the pressure head, the adjusting disc is in sliding connection with the top plate along the axial direction of the wire column, and is in rotary connection with one end of the wire column away from the operating handle, and the adjusting disc is connected with the pressure head.

In some embodiments, a plurality of adjusting bolts are distributed on the adjusting disk in an array manner, and the adjusting bolts are slidably arranged on the adjusting disk in a penetrating manner and are in threaded connection with the top plate.

The top of the pressure head is provided with a flange plate, the flange plate is connected with the adjusting plate in a sliding manner along the axial direction of the wire column, and an elastic element is arranged between the flange plate and the adjusting plate.

For example, a plurality of sliding pins are distributed on the flange plate in an array manner, a plurality of sliding holes are distributed on the adjusting plate in an array manner, and each sliding pin is in one-to-one sliding fit with each sliding hole.

In some embodiments, a plurality of through holes are distributed on the flange in an array manner, and each through hole is internally provided with a limit bolt in a penetrating manner, and the limit bolts are in threaded connection with the adjusting plate.

In some embodiments, the edge of the base is provided with a first clamping table, the connecting arm is rotationally connected with the top plate, the lower end of the connecting arm is provided with a second clamping table, and when the top plate swings to be parallel to the top wall of the base, the connecting arm can swing to the second clamping table to be clamped with the first clamping table up and down.

In some embodiments, the caulking groove inner pad is provided with an adjusting pad.

The balance device testing device based on the dual-port network analyzer has the beneficial effects that: compared with the prior art, the balance device testing device based on the dual-port network analyzer can press and fix two balance devices in two corresponding caulking grooves of the base respectively through the two press-connection assemblies, the two balance devices are electrically connected by the first conducting circuit on the circuit board to be used as an integral device to be tested, meanwhile, the two testing ends of the device to be tested are electrically connected to the coaxial connectors at the two ends of the base respectively through the second conducting circuit, connection testing with the dual-port network analyzer is achieved through the two coaxial connectors, operation is simple and convenient, testing is carried out without adopting the multi-port network analyzer to match with the balance testing module, and therefore testing difficulty and cost of the balance devices can be greatly reduced.

Drawings

Fig. 1 is a schematic perspective view of a balance device testing apparatus based on a dual-port network analyzer according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an explosion structure of a crimping assembly used in a balance device testing apparatus based on a dual-port network analyzer according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a balance device in a fixed state on a balance device testing apparatus based on a dual port network analyzer according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a structural comparison of a single-ended device and a balanced device;

fig. 5 is a schematic diagram of a test circuit of a balance device testing apparatus based on a dual-port network analyzer according to an embodiment of the present utility model.

In the figure: 10. a base; 11. a coaxial connector; 12. a caulking groove; 121. adjusting the gasket; 13. a first clamping table; 20. a circuit board; 201. an avoidance port; 21. a first conduction circuit; 22. a second conduction circuit; 30. a crimping assembly; 31. a top plate; 311. a connecting arm; 3111. a second clamping table; 312. a silk column; 3121. an operation handle; 32. a pressure head; 321. a groove; 322. a flange plate; 323. an elastic element; 324. a slide pin; 325. a limit bolt; 33. an adjusting plate; 331. an adjusting bolt; 332. a slide hole; 40. a balancing device; 41. pins.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "disposed" on another element, it can be directly on the other element or be indirectly on the other element. It is to be understood that the terms "upper," "lower," "front," "rear," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship based on that shown in the drawings, merely to facilitate describing the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model. The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 to 5, a description will now be made of a balance device testing apparatus based on a dual-port network analyzer according to the present utility model. The balance device testing device based on the dual-port network analyzer comprises a base 10, a circuit board 20 and two crimping assemblies 30; wherein, two ends of the base 10 are respectively provided with a coaxial connector 11, the two coaxial connectors 11 are respectively used for connecting two ports of the network analyzer, two caulking grooves 12 are distributed at intervals on the part of the top wall of the base 10 between the two coaxial connectors 11, and each caulking groove 12 is respectively used for caulking and positioning a balance device 40; the circuit board 20 is mounted on the base 10, the circuit board 20 is provided with two avoidance ports 201 corresponding to the positions of the two caulking grooves 12 respectively, the circuit board 20 is provided with a first conducting circuit 21 for electrically connecting the two balance devices 40 to form an integral tested device, and the circuit board 20 is also provided with a second conducting circuit 22 for electrically connecting the two testing ends of the tested device with the two coaxial connectors 11 respectively; the two crimping assemblies 30 are respectively hinged on the base 10 and respectively correspond to the positions of the two caulking grooves 12, and the two crimping assemblies 30 have a compressed state of being turned down to be respectively abutted against one of the balance devices 40 and a released state of being turned up to be separated from the balance devices 40.

It should be noted that the balanced device is an important analog device, and corresponds to a single-ended device, and the balanced device can implement Differential and Common operations of signals compared to the single-ended device, as compared to the structure of the balanced device and the single-ended device shown in fig. 4.

On the basis, as shown in fig. 5, after two balance devices are connected with a network analyzer with two ports through a first conduction circuit and a second conduction circuit on a circuit board, the two balance devices jointly form a structure similar to that of a single-ended device in fig. 4, the two balance devices as a whole can be tested and obtained simultaneously to obtain the sum of the Insertion Loss (the electrical performance key parameter of the balance devices), therefore, the Insertion Loss of each balance device can be obtained by adopting three balance devices to test in a combined mode in sequence, if other balance devices need to be tested again, only the balance devices with the known Insertion Loss and the balance devices to be tested need to be tested in combination, and then the Insertion Loss of the known balance devices is subtracted from the test result.

It should be noted that, in this embodiment, the above test method is used to realize an electrical test on an integral tested device formed by combining two balance devices 40, the circuit board 20 is fixed on the base 10, the two balance devices 40 are respectively and correspondingly placed in the two caulking grooves 12 during the test, so that the corresponding pins 41 of the balance devices 40 are conducted with the first conducting circuit 21 and the second conducting circuit 22, then the two compression joint assemblies 30 are simultaneously or sequentially turned over, so that the two compression joint assemblies 30 respectively press against the two balance devices 40, stability of the balance devices 40 is ensured during the test, and meanwhile, contact reliability between the pins 41 and the conducting circuit is ensured by using the pressing force of the compression joint assemblies 30, so as to further improve electrical connection stability.

It should be understood that the purpose of using the two stations designed directly on the same circuit board 20 (i.e. the conducting circuit on the circuit board 20 is able to directly conduct the two balancing devices 50 and connect to the two coaxial connectors 11) in this embodiment is to: by utilizing the consistency of the processing technological parameters of the same circuit board 20, the characteristic parameters of all the positions of the circuit board 20 can be ensured to be the same, and on the basis, the equal-length wiring skills in circuit drawing are combined, so that the consistency of the connection paths and the lengths between two balance devices and the corresponding coaxial connectors 11 can be ensured, and the testing accuracy is further improved.

Compared with the prior art, the balance device testing device based on the dual-port network analyzer provided by the embodiment can press and fix two balance devices 40 in two corresponding caulking grooves 12 of the base 10 respectively through two press-connection assemblies 30, the two balance devices 40 are electrically connected by using the first conducting circuit 21 on the circuit board 20 to be an integral tested device, meanwhile, two testing ends of the tested device are electrically connected to the coaxial connectors 11 at two ends of the base 10 respectively by the second conducting circuit 22, connection testing with the dual-port network analyzer is realized through the two coaxial connectors 11, operation is simple and convenient, testing is carried out without adopting the multi-port network analyzer to match with a balance testing module, and testing difficulty and cost of the balance devices 40 can be greatly reduced.

In some embodiments, referring to fig. 1-3, the crimp assembly 30 includes a top plate 31 and a ram 32; wherein, one end of the top plate 31 is hinged with the base 10, and the other end is provided with a connecting arm 311; when the top plate 31 swings to be parallel to the top wall of the base 10 and is positioned right above the caulking groove 12, the connecting arm 311 is engaged with the base 10, and when the connecting arm 311 is disengaged from the base 10, the top plate 31 can swing upward; the pressing head 32 is arranged at the center of the top plate 31 and is used for pressing the balance device 40 on the base 10 when the connecting arm 311 is clamped with the base 10.

When the top plate 31 drives the pressure head 32 to move together to be pressed against the balance device 40, the top plate 31 is in a state parallel to the base 10 and is clamped and fixed with the base 10 through the connecting arm 311, so that stable and balanced pressing force of the pressure head 32 on the balance device 40 can be ensured, and the stability and the electric connection reliability of the balance device 40 are improved.

As a variant embodiment of the above-mentioned pressure head 32, referring to fig. 2 and 3, the bottom wall of the pressure head 32 has a groove 321 adapted to be inserted into the main body of the balancing device 40, and the portions of the pressure head 32 located at two sides of the groove 321 are respectively used to press the pins 41 at two sides of the balancing device 40. The grooves 321 are arranged, so that the parts of the pressure heads 32 positioned on two sides of the grooves 321 are propped against the pins 41 on two sides of the balance device 40, the pins 41 are in close contact with the conducting circuit, the reliability of electric connection is improved, the phenomena that the pins 41 are stressed, the virtual connection and dislocation of the pins 41 and the conducting circuit are caused due to the fact that the pressure heads 32 are supported by the main body part of the balance device 40 are avoided, and the success rate of testing is improved.

In some possible implementations, referring to fig. 2, a wire column 312 is vertically threaded through the center of the top plate 31, an operation handle 3121 is disposed at one end of the wire column 312, the wire column 312 is in threaded engagement with the top plate 31, an adjustment disc 33 is disposed between the top plate 31 and the pressure head 32, the adjustment disc 33 is slidably connected to the top plate 31 along the axial direction of the wire column 312, and is rotatably connected to the end of the wire column 312 away from the operation handle 3121, and the adjustment disc 33 is connected to the pressure head 32. The adjusting disc 33 can be driven to slide up and down relative to the top plate 31 by rotating the screw column 312, so that the pressure head 32 connected to the adjusting plate can be used for adjusting the up and down positions, the pressure head 32 can generate a required pressing force to the balance device 40 when the top plate 31 is parallel to the base 10, and meanwhile, the pressing force value of the pressure head 32 to the balance device 40 can be adjusted at any time, and the fixing of the balance device 40 with different sizes on the base 10 and the conduction with circuit patterns can be met by adjusting, so that the lifting device is applicable to a product range.

Specifically, in the present embodiment, a plurality of adjusting bolts 331 are distributed on the adjusting plate 33 in an array, and the adjusting bolts 331 are slidably disposed on the adjusting plate 33 and are screwed with the top plate 31. The maximum distance between the adjusting disk 33 and the top plate 31 can be adjusted by screwing the adjusting bolt 331 into the top plate 31, so that the stroke of the adjusting disk 33 is restrained, the phenomenon that the adjusting disk 33 drives the pressure head 32 to excessively squeeze the balance device 40 due to the transitional screwing of the wire column 312 is avoided, and further the balance device 40 and/or the circuit board 20 are prevented from being damaged due to excessive pressure in the test process.

In some embodiments, as shown in fig. 2, a flange 322 is disposed on the top of the pressing head 32, the flange 322 is slidably connected to the adjusting plate 33 along the axial direction of the wire column 312, and an elastic element 323 is disposed between the flange 322 and the adjusting plate 33. The flange plate 322 is arranged to facilitate connection between the pressure head 32 and the adjusting plate 33, and the flange plate 322 and the adjusting plate 33 are in sliding fit, and the elastic element 323 such as a spring is arranged between the flange plate 322 and the adjusting plate 33, so that elastic pressing can be formed between the pressure head 32 and the balance device 40, damage caused by rigid pressing force born by the balance device 40 is avoided, and protection of the balance device 40 and the circuit board 20 in the testing process is improved.

Specifically, in this embodiment, a plurality of sliding pins 324 are distributed on the flange 322 in an array manner, and a plurality of sliding holes 332 are distributed on the adjusting plate 33 in an array manner, and each sliding pin 324 is in one-to-one sliding fit with each sliding hole 332. The sliding degree of freedom between the flange plate 322 and the adjusting plate 33 is realized by matching the sliding pins 324 and the sliding holes 332, and on the basis, the sliding pins 324 distributed in an array can also avoid relative rotation between the flange plate 322 and the adjusting plate 33, so that the stability of the pressing state of the pressing head 32 on the balance device 40 can be ensured.

It should be noted that, in this embodiment, a plurality of through holes are distributed on the flange 322 in an array manner, and each through hole is internally provided with a limit bolt 325, and the limit bolts 325 are screwed with the adjusting plate 33. By arranging the limit bolts 325, the slipping phenomenon of the sliding pin 324 and the sliding hole 332 can be avoided, and meanwhile, the sliding stroke of the flange plate 322 relative to the adjusting plate 33 and the elastic pretension of the elastic element 323 can be adjusted by screwing the limit bolts 325, so that the device is flexible and reliable to use.

Alternatively, referring to fig. 1 and 2, in the present embodiment, the connecting structure between the connecting arm 311 and the base 10 is that the edge of the base 10 is provided with a first clamping table 13, the connecting arm 311 is rotatably connected with the top plate 31, the lower end of the connecting arm 311 is provided with a second clamping table 3111, and when the top plate 31 swings to be parallel to the top wall of the base 10, the connecting arm 311 can swing to the second clamping table 3111 to be clamped with the first clamping table 13.

After the balance device 40 is installed in place on the base 10, the top plate 31 is turned over to enable the pressure head 32 to prop against the balance device 40, then the connecting arm 311 is swung to enable the second clamping table 3111 to form clamping connection with the first clamping table 13, so that the pressure head 32 is guaranteed to be stable in propping-against state of the balance device 40, after the test is finished, the second clamping table 3111 and the first clamping table 13 can be separated only by outwards swinging the connecting arm 311, at the moment, the top plate 31 can drive the pressure head 32 to be overturned together, and then the balance device 40 after the test is finished can be directly taken down, and the operation is simple and convenient.

It should be understood that, referring to fig. 3, in this embodiment, the caulking groove 12 is internally padded with an adjusting pad 121. Since the first conductive circuit 21 and the second conductive circuit 22 are both circuit patterns arranged on the board surface of the circuit board 20, the pins 41 of the balance device 40 are required to be abutted against the circuit board 20 to ensure the reliability of the electrical connection with the corresponding conductive circuits, and the adjusting gaskets 121 are arranged to adjust the depth of the main body of the balance device 40 embedded in the embedded groove 12, so that the relative positions of the pins 41 and the circuit board 20 in the height direction are adjusted, the pins 41 are ensured to be abutted against the circuit board 20, and the adjusting gaskets 121 form stable support for the main body part of the balance device 40; in addition, the balance device 40 for different sizes can also meet the use requirement by replacing the adjusting pads with different thicknesses, thereby improving the universality of the device.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. Balance device testing arrangement based on dual port network analyzer, its characterized in that includes:

two ends of the base are respectively provided with a coaxial connector, the two coaxial connectors are respectively used for connecting two ports of the network analyzer, two caulking grooves are distributed at intervals on the part of the top wall of the base between the two coaxial connectors, and each caulking groove is respectively used for being in caulking connection with and positioning a balancing device;

the circuit board is attached to the base and is provided with two avoidance ports corresponding to the positions of the two caulking grooves respectively, a first conduction circuit for electrically connecting the two balance devices to form an integral tested device and a second conduction circuit for electrically connecting the two test ends of the tested device with the two coaxial connectors respectively;

the two crimping assemblies are hinged to the base respectively and correspond to the two caulking groove positions respectively, and the two crimping assemblies are in a pressing state of downwards overturning to respectively press against one of the balance devices and are in a releasing state of upwards overturning to be separated from the balance devices.

2. The balance device testing apparatus of claim 1, wherein the crimping assembly comprises:

one end of the top plate is hinged with the base, and the other end of the top plate is provided with a connecting arm; when the top plate swings to be parallel to the top wall of the base and is positioned right above the caulking groove, the connecting arm is clamped with the base, and when the connecting arm is separated from the base, the top plate can swing upwards;

the pressure head is arranged in the center of the top plate and used for pressing the balance device on the base when the connecting arm is clamped with the base.

3. The balance device testing apparatus based on the dual-port network analyzer as claimed in claim 2, wherein the bottom wall of the pressure head has a recess adapted for the main body portion of the balance device to extend into, and the portions of the pressure head located at both sides of the recess are respectively used for pressing pins at both sides of the balance device.

4. The balance device testing apparatus based on the dual-port network analyzer as claimed in claim 2, wherein a wire column is vertically penetrated in the center of the top plate, an operation handle is arranged at one end of the wire column, the wire column is in threaded fit with the top plate, an adjusting disc is arranged between the top plate and the pressure head, the adjusting disc is in sliding connection with the top plate along the axial direction of the wire column, and is in rotary connection with one end of the wire column far away from the operation handle, and the adjusting disc is connected with the pressure head.

5. The balance device testing apparatus based on the dual-port network analyzer of claim 4, wherein a plurality of adjusting bolts are distributed on the adjusting disk in an array, and the adjusting bolts are slidably arranged on the adjusting disk in a penetrating manner and are in threaded connection with the top plate.

6. The balance device testing apparatus based on the dual-port network analyzer according to claim 4, wherein a flange is arranged at the top of the pressure head, the flange is slidably connected with the adjusting plate along the axial direction of the wire column, and an elastic element is arranged between the flange and the adjusting plate.

7. The balance device testing apparatus based on the dual-port network analyzer as set forth in claim 6, wherein a plurality of sliding pins are distributed on the flange in an array manner, a plurality of sliding holes are distributed on the adjusting plate in an array manner, and each sliding pin is in one-to-one sliding fit with each sliding hole.

8. The balance device testing apparatus based on the dual-port network analyzer as set forth in claim 7, wherein a plurality of through holes are distributed on the flange in an array, and each of the through holes is internally provided with a limit bolt in a penetrating manner, and the limit bolts are screwed with the adjusting plate.

9. The balance device testing apparatus based on the dual-port network analyzer as set forth in claim 2, wherein a first clamping table is provided at an edge of the base, the connecting arm is rotatably connected with the top plate, a second clamping table is provided at a lower end of the connecting arm, and when the top plate swings to be parallel to a top wall of the base, the connecting arm can swing to the second clamping table to be clamped with the first clamping table up and down.

10. The balance device testing apparatus based on a dual port network analyzer of any of claims 1-9, wherein the caulking groove inner pad is provided with an adjusting spacer.