CN220872912U

CN220872912U - Domain controller test fixture and test system thereof

Info

Publication number: CN220872912U
Application number: CN202322333972.XU
Authority: CN
Inventors: 章少杰; 金豪; 揭晓俊; 徐剑; 赵建军
Original assignee: Freetech Intelligent Systems Co Ltd
Current assignee: Freetech Intelligent Systems Co Ltd
Priority date: 2023-08-29
Filing date: 2023-08-29
Publication date: 2024-04-30
Anticipated expiration: 2033-08-29

Abstract

The application relates to the technical field of domain controller testing, in particular to a domain controller testing tool and a testing system thereof. The domain controller testing tool comprises a testing board and a support assembly, wherein at least one side surface of the testing board is provided with a first positioning part, a second positioning part and a third positioning part. When the electromagnetic compatibility test is carried out on the domain controller, the test board can be vertically and detachably arranged on the support assembly through the second positioning part, so that the domain controller is opposite to the electromagnetic emission device. When the domain controller is randomly vibrated, the test board can be horizontally and detachably mounted to the random vibration table through the third positioning portion. Therefore, only one test fixture comprising the test board and the support assembly is required to be arranged, so that electromagnetic compatibility test and random vibration test can be carried out in a compatible mode, and the cost of the fixture and the process is saved.

Description

Domain controller test fixture and test system thereof

Technical Field

The application relates to the technical field of domain controller testing, in particular to a domain controller testing tool and a testing system thereof.

Background

The electromagnetic compatibility test is the comprehensive evaluation of the interference (EMI) and anti-interference capability (EMS) of the electronic product in terms of electromagnetic field, and is one of the most important indexes of the product quality. The purpose of the test is to detect the influence of electromagnetic radiation generated by electrical products on human bodies, public place power grids and other electrical products working normally, and generally requires that the domain controller maintain a vertical fixed posture. Random vibration testing is used to determine whether a product is capable of withstanding various environmental vibrations by simulating the various vibratory environmental effects encountered by the product in the shipping, installation and use environments, and generally requires that the domain controller be horizontally secured to the vibrating table.

At present, because the postures of the domain controller in the electromagnetic compatibility test and the random vibration test are different, two sets of tools are required to be designed to respectively participate in the electromagnetic compatibility test and the random vibration test, and the cost of the tools and the process is increased.

Disclosure of utility model

Based on the above, it is necessary to provide a field controller test fixture and a test system thereof which are compatible with electromagnetic compatibility test and random vibration test.

The field controller testing tool comprises a testing board and a support assembly, wherein at least one side surface of the testing board is provided with a first positioning part, a second positioning part and a third positioning part, and the first positioning part is used for fixing the field controller; the test board can be vertically and detachably mounted on the support assembly through the second positioning part; the third positioning part is used for detachably mounting the test board to a random vibration table;

When the electromagnetic compatibility test is carried out on the domain controller, the test board can be vertically and detachably arranged on the support assembly through the second positioning part, so that the domain controller is opposite to the electromagnetic emission device;

When the domain controller is randomly vibrated, the test board can be horizontally and detachably mounted to the random vibration table through the third positioning part.

It can be understood that the first positioning part is arranged to mount the domain controller on the test board, the test board after the domain controller is mounted can be vertically and detachably mounted on the support assembly through the second positioning part and is arranged opposite to the electromagnetic emission device to perform electromagnetic compatibility test, and the test board can also be directly horizontally and detachably mounted on the random vibration table through the third positioning part to perform random vibration test. Therefore, only one test tool comprising the test board and the support assembly is required to be arranged, so that electromagnetic compatibility test and random vibration test can be carried out compatibly, the number of custom-made tools is reduced, the flexibility and stability of the posture of the time domain controller for random vibration and EMC test are improved, the measurement error caused by inaccurate posture is reduced, and the test stability is improved; meanwhile, the cost of tools and procedures is saved.

In an embodiment, the domain controller testing fixture further includes a first locking member, and the first locking member is in threaded connection with the second positioning portion, so as to detachably mount the testing board to the support assembly.

It will be appreciated that the first locking member can be threaded into the second locating portion and then the surface of the first locking member secures the test plate to the carrier assembly for subsequent electromagnetic compatibility testing.

In one embodiment, the support assembly is provided with an adjusting groove extending along a first direction;

The first locking piece penetrates through the adjusting groove along the second direction and is in threaded connection with the second positioning part, and the first locking piece can move in the adjusting groove along the first direction so as to drive the test board to adjust the position of the test board relative to the support assembly along the first direction;

The first direction and the second direction are perpendicular, and the vertical direction is perpendicular to a plane formed by the first direction and the second direction.

It can be appreciated that because the quality of the different domain controllers is different, the center of gravity of the test board after the different domain controllers are installed is also different, and the position of the test board relative to the support assembly can be adjusted by moving the first locking member in the adjusting groove, so that the support assembly uniformly distributes the weight from the test board, and the stability of the posture of the domain controllers is ensured.

In an embodiment, the domain controller testing fixture further comprises a balancing weight, the testing board is mounted at one end of the support assembly, and the first locking piece is matched with the second positioning part along the first direction so as to mount the testing board;

The balancing weight is lapped on the support assembly and is positioned at one end of the support assembly far away from the test board.

It will be appreciated that by providing the counterweight to overlap the support assembly, the support assembly is thus stably held stationary on the ground.

In an embodiment, the support assembly comprises a first support and a second support, wherein the first support and the second support are arranged at intervals in a second direction; when the electromagnetic compatibility test is performed on the domain controller, the test board is simultaneously connected to the first support and the second support.

In an embodiment, the first positioning portion, the second positioning portion and the third positioning portion are configured as positioning holes.

In an embodiment, the first positioning parts are provided with a plurality of groups, and the plurality of groups of the first positioning parts are different from each other for installing the domain controllers of different sizes.

In an embodiment, the domain controller testing fixture further comprises a second locking member, and the second locking member is in threaded connection with the first positioning portion, so that the domain controller is detachably mounted on the testing board.

In an embodiment, the domain controller testing fixture further comprises a lifting piece detachably mounted on the testing board, and a lifting ring is arranged on the lifting piece.

It can be appreciated that the lifting member can be connected to an external lifting device to facilitate handling of the domain controller test fixture.

The application also provides the following technical scheme:

The domain controller testing system comprises the domain controller testing tool and the random vibration table;

Or the domain controller testing system comprises the domain controller testing tool and the electromagnetic transmitting device.

Compared with the prior art, the domain controller testing system is characterized in that the first positioning part is arranged to install the domain controller on the testing board, the testing board after the domain controller is installed can be vertically and detachably installed on the support assembly through the second positioning part and is just opposite to the electromagnetic emission device to perform electromagnetic compatibility testing, and the testing board can also be directly horizontally and detachably installed on the random vibration table through the third positioning part to perform random vibration testing. Therefore, only one test tool comprising the test board and the support assembly is required to be arranged, so that electromagnetic compatibility test and random vibration test can be carried out compatibly, the number of custom-made tools is reduced, the flexibility and stability of the posture of the time domain controller for random vibration and EMC test are improved, the measurement error caused by inaccurate posture is reduced, and the test stability is improved; meanwhile, the cost of tools and procedures is saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments or the conventional techniques of the present application, the drawings required for the descriptions of the embodiments or the conventional techniques will be briefly described below, and it is apparent that the drawings in the following descriptions are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic structural diagram of a domain controller testing tool provided by the application.

Fig. 2 is an exploded view of a test tool (for electromagnetic compatibility testing) after the domain controller is installed.

Fig. 3 is a schematic structural diagram of a domain controller testing tool according to another embodiment of the present application.

Fig. 4 is a schematic structural diagram of a test fixture (for electromagnetic compatibility testing) after the domain controller is installed in another embodiment of the present application.

Fig. 5 is a schematic perspective view of a test board according to the present application.

Fig. 6 is an explosion diagram of a test tool (for random vibration testing) after the domain controller is installed.

Reference numerals: 100. testing a tool by a domain controller; 101. a domain controller; 10. a test board; 11. a first positioning portion; 12. a second positioning portion; 13. a third positioning portion; 14. a first locking member; 15. balancing weight; 16. a second locking member; 17. hoisting the piece; 171. a hoisting ring; 20. a support assembly; 21. an adjustment tank; 22. a first support; 23. and a second support.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and the like are used in the description of the present application for the purpose of illustration only and do not represent the only embodiment.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a 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 at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" on a second feature may be that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through intermedial media. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.

Unless defined otherwise, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used in the description of the present application includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 6, the present application provides a domain controller testing tool 100, where the domain controller testing tool 100 can perform an electromagnetic compatibility test and a random vibration test on a domain controller 101 at the same time, and it is not necessary to manufacture two tools for the electromagnetic compatibility test and the random vibration test of the domain controller 101, so as to reduce the cost of the tools and the process.

It should be noted that EMC test is also called electromagnetic compatibility: the method is a comprehensive evaluation of the interference (EMI) and anti-interference capability (EMS) of the electronic product in the aspect of electromagnetic field, and is one of the most important indexes of the product quality. The test purpose is to detect the influence of electromagnetic radiation generated by the electrical products on human bodies, public place power grids and other electrical products which work normally. Random vibration: the ability to determine whether a product is capable of withstanding various environmental vibrations is accomplished by simulating various vibratory environmental effects encountered by the product in the shipping, installation and use environments. The test aims to simulate a series of vibration phenomena, test whether the product can bear the test of the vibration environment of the transportation or use process in the service life period, and also determine the requirement standard of the product design and function, and generally, the sample is required to be horizontally fixed on the vibration table.

As shown in fig. 1 and 2, the domain controller testing fixture 100 includes a testing board 10 and a support assembly 20, the testing board 10 is provided with a first positioning portion 11, a second positioning portion 12 and a third positioning portion 13, and the first positioning portion 11 is used for fixing the domain controller 101 so as to fix the domain controller 101 and the testing board 10 into a whole. The test plate 10 can be vertically and detachably mounted on the stand assembly 20 by the second positioning portion 12. The third positioning portion 13 is used to horizontally and detachably mount the test board 10 to a random vibration table (not shown). Wherein, when the electromagnetic compatibility test is performed on the domain controller 101, the test board 10 can be vertically and detachably mounted on the stand assembly 20 through the second positioning part 12 so that the domain controller 101 faces an electromagnetic emission device (not shown), thereby performing the electromagnetic compatibility test on the domain controller 101 through the electromagnetic emission device. When the domain controller 101 is randomly vibrated, the test board 10 can be horizontally and detachably mounted to the random vibration table through the third positioning part 13. So configured, when it is necessary to perform an electromagnetic compatibility test on the domain controller 101, the domain controller 101 is just opposite to the electromagnetic emission device by adjusting the support assembly 20 and the test board 10. When the random vibration test is required for the domain controller 101, the test board 10 is directly removed from the stand assembly 20, and then the test board 10 with the domain controller 101 mounted thereon is fixed to the random vibration table. Therefore, only one domain controller testing tool 100 comprising the testing board 10 and the support assembly 20 is required to be arranged, so that electromagnetic compatibility testing and random vibration testing can be carried out compatibly, the number of custom-made tools is reduced, the flexibility and stability of the gesture of the time domain controller for random vibration and EMC testing are improved, the measurement error caused by inaccurate gesture is reduced, and the testing stability is improved; meanwhile, the cost of tools and procedures is saved.

In an embodiment, the first positioning portions 11 are provided with a plurality of groups, and the plurality of groups of first positioning portions 11 are different from each other for installing the domain controllers 101 with different sizes, so as to improve the versatility of the test board 10. Here, the first positioning portions 11 may be provided in 2 groups, 3 groups, 4 groups, and so on.

Specifically, a plurality of first positioning portions 11 are provided in each group, the plurality of first positioning portions 11 in each group are arranged in an array, and each first positioning portion 11 is arranged in a different orientation, thus improving the stability of the installation of the domain controller 101.

In an embodiment, the first positioning portion 11, the second positioning portion 12, and the third positioning portion 13 are configured as positioning holes. Here, the positioning hole may be provided as a through hole or a counter bore. The type of the specific positioning hole may be selected according to the mounting formation of the test board 10.

As shown in fig. 1 and 2, the domain controller testing fixture 100 further includes a first locking member 14, and the first locking member 14 is screwed with the second positioning portion 12, so as to detachably mount the test board 10 to the support assembly 20. Specifically, the first locking member 14 is arranged as a bolt or screw. It should be noted that, when the electromagnetic compatibility test is required, the test board 10 and the stand-off assembly 20 are assembled into a single body. Here, the second positioning portion 12 is a positioning hole, and a screw thread is provided in the positioning hole so as to form a screw-thread connection with the first locking member 14. Of course, the first locking member 14 may also be configured as a pin, so that the pin cooperates with the positioning hole to detachably mount the test board 10 to the stand assembly 20.

In one embodiment, the test board 10 is mounted on the support assembly 20, and the support assembly 20 is provided with an adjusting slot 21 extending along the first direction x, and the adjusting slot 21 is used for adjusting the position of the test board 10 relative to the support assembly 20. The positioning hole of the second positioning portion 12 is axially along the second direction, the first locking member 14 penetrates through the adjusting groove 21 and is in threaded connection with the second positioning portion 12, and the first locking member 14 can move in the adjusting groove 21 along the first direction so as to drive the test board 10 to perform position adjustment relative to the support assembly 20 in the first direction. The first direction and the second direction are perpendicular, and the vertical direction is perpendicular to a plane formed by the first direction and the second direction y. It should be explained that, due to the deviation of the quality of the different domain controllers 101, the center of gravity of the test board 10 after the different domain controllers 101 are installed will be different, and the position of the test board 10 relative to the support assembly 20 can be adjusted by moving the first locking member 14 in the adjusting slot 21, so that the support assembly 20 uniformly distributes the weight from the test board 10, and the requirement of the vertical posture of each domain controller 101 during EMC test is ensured, and the stability of the posture of the domain controller 101 is ensured. Here, the shape of the adjustment groove 21 is arranged as a straight line groove or an arc groove.

In this embodiment, the number of the first locking members 14 is two, and the two first locking members 14 are respectively disposed on both sides of the test board 10; correspondingly, the number of the second positioning parts 12 is also two, the second positioning parts 12 are arranged on two sides of the test board 10 along the second direction, and meanwhile, the number of the adjusting grooves 21 is also two, and the adjusting grooves 21 and the second positioning parts 12 are arranged in a one-to-one correspondence manner. The first locking member 14 is inserted into the corresponding adjusting slot 21 and connected to the second positioning portion 12. Here, by providing two first locking members 14, the stability of the entire installation of the test board 10 is improved.

In another embodiment, as shown in fig. 3 and 4, the domain controller testing fixture 100 further includes a balancing weight 15, the second positioning portion 12 further includes a positioning hole axially disposed along the first direction, the test board 10 is mounted on one end of the support assembly 20, and the first locking member 14 is mated with the second positioning portion 12 along the first direction to mount the test board 10. The balancing weight 15 is overlapped on the support assembly 20 and is located at one end of the support assembly 20 away from the test board 10. It will be appreciated that the test plate 10 and the weight 15 are located at each end of the support assembly 20, and the domain controller test fixture 100 can be stably maintained on the ground.

Specifically, the weight 15 is made of a material with a relatively high density, such as concrete, steel, cast iron, and the like. It is desirable that in this embodiment, the number of the first locking pieces 14 is two, and the two first locking pieces 14 are arranged on the same side of the test board 10. Correspondingly, in this embodiment, the number of the second positioning portions 12 is also set to two, and the two second positioning portions 12 are arranged at intervals along the second direction on the surface of the test board 10 on which the domain controller 101 is mounted. Meanwhile, corresponding connecting holes are also required to be formed in the support assembly 20, and the first locking member 14 penetrates through the second positioning portion 12 and is connected with the connecting holes, so that the test board 10 is detachably mounted on the support assembly 20.

In an embodiment, the domain controller testing fixture 100 further includes a second locking member 16, where the second locking member 16 is screwed with the first positioning portion 11, so as to detachably mount the domain controller 101 on the testing board 10. Here, the second locking member 16 is provided as a bolt or screw.

As shown in fig. 1 and 2, the domain controller testing fixture 100 further includes a lifting member 17, where the lifting member 17 is detachably mounted on the testing board 10 through threads, and a lifting ring 171 is provided on the lifting member 17. The lifting member 17 is connected with external lifting equipment through a lifting ring 171 so as to carry the domain controller testing fixture 100.

Here, the number of the hanging pieces 17 is 4, and the 4 hanging pieces 17 are respectively located at four corners of the test board 10, so that the lifting apparatus can smoothly transport the test board 10.

As shown in fig. 1 to 4, the holder assembly 20 includes a first holder 22 and a second holder 23, and the first holder 22 and the second holder 23 are spaced apart in the second direction. When the electromagnetic compatibility test is performed on the domain controller 101, the test board 10 is simultaneously connected to the first support 22 and the second support 23, so that the first support 22 and the second support 23 form a stand, and support the test board 10 together.

Preferably, the first support 22 and the second support 23 are identical in shape and are each provided as an elongated support with a flat bottom surface.

As shown in fig. 5 to 6, when the random vibration test is to be performed on the domain controller 101, the support assembly 20 is removed, and the test board 10 mounted with the domain controller 101 is mounted to the random vibration table through the third positioning part 13, so that the test board 10 vibrates. Here, the number of the third positioning portions 13 is plural, so that the stability of the mounting of the test board 10 is ensured by the plural third positioning portions 13.

Specifically, the number of the third positioning portions 13 may be 10, 15, 20, or the like.

The application also provides a domain controller testing system, which comprises the domain controller testing tool 100 and the random vibration table, so as to perform random vibration test on the domain controller 101. Or the domain controller testing system comprises the domain controller testing tool 100 and the electromagnetic transmitting device, so as to perform electromagnetic compatibility testing on the domain controller 101.

The random vibration table and the electromagnetic emission device are all in the prior art, and are not described herein.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be determined from the following claims.

Claims

1. The field controller testing tool is characterized by comprising a testing plate (10) and a support assembly (20), wherein at least one side surface of the testing plate (10) is provided with a first positioning part (11), a second positioning part (12) and a third positioning part (13), and the first positioning part (11) is used for fixing a field controller (101); the test board (10) can be vertically and detachably mounted on the support assembly (20) through the second positioning part (12); the third positioning part (13) is used for detachably mounting the test board (10) to a random vibration table;

Wherein, when the electromagnetic compatibility test is performed on the domain controller (101), the test board (10) can be vertically and detachably mounted on the support assembly (20) through the second positioning part (12) so that the domain controller (101) is opposite to an electromagnetic emission device;

When the domain controller (101) is randomly vibrated, the test board (10) can be horizontally and detachably mounted to a random vibration table through the third positioning part (13).

2. The domain controller testing fixture according to claim 1, further comprising a first locking member (14), the first locking member (14) being threadedly connected to the second positioning portion (12) for detachably mounting the test board (10) to the support assembly (20).

3. The domain controller testing fixture according to claim 2, wherein the support assembly (20) is provided with an adjusting groove (21) extending along a first direction;

The first locking piece (14) penetrates through the adjusting groove (21) along the second direction and is in threaded connection with the second positioning part (12), and the first locking piece (14) can move in the adjusting groove (21) along the first direction so as to drive the test board (10) to adjust the position of the test board relative to the support assembly (20) along the first direction;

4. The domain controller testing fixture according to claim 2, further comprising a balancing weight (15), wherein the test board (10) is mounted at one end of the support assembly (20), and wherein the first locking member (14) cooperates with the second positioning portion (12) along a first direction to mount the test board (10);

The balancing weight (15) is lapped on the support assembly (20) and is positioned at one end of the support assembly (20) far away from the test board (10).

5. The domain controller testing fixture according to claim 1, wherein the support assembly (20) comprises a first support (22) and a second support (23), the first support (22) and the second support (23) being arranged at intervals in a second direction; when the field controller (101) is subjected to an electromagnetic compatibility test, the test board (10) is connected to both the first support (22) and the second support (23).

6. Domain controller testing fixture according to claim 1, characterized in that the first positioning part (11), the second positioning part (12) and the third positioning part (13) are configured as positioning holes.

7. Domain controller testing fixture according to claim 1 or 6, characterized in that the first positioning parts (11) are provided with a plurality of groups, which are mutually different between the first positioning parts (11) for mounting the domain controllers (101) of different sizes.

8. The domain controller testing fixture according to claim 7, further comprising a second locking member (16), the second locking member (16) being in threaded connection with the first positioning portion (11) to detachably mount the domain controller (101) on the testing board (10).

9. The domain controller testing fixture according to claim 8, further comprising a lifting member (17), wherein the lifting member (17) is detachably mounted on the testing board (10), and a lifting ring (171) is provided on the lifting member (17).

10. A domain controller testing system, characterized in that it comprises a domain controller testing tool according to any one of claims 1-9 and a random vibration table;

or the domain controller testing system comprises the domain controller testing fixture as claimed in any one of claims 1-9 and an electromagnetic emission device.