CN215218912U - Clamp for testing device and testing system - Google Patents

Abstract

The present disclosure provides a fixture for a test device and a test system. The fixture comprises at least one carrying part, suitable for carrying the device under test and comprising power terminals and coupling terminals electrically connected to each other, the power terminals being suitable for being electrically connected with the line ports of the device under test; and a connecting member adapted to be detachably coupled with one of the at least one load bearing member, and including: a coupling port adapted for insertion of a coupling terminal therein to provide electrical connection of the test device to the line port via the power terminal; and a movable member including signal terminals and operable to move to drive the signal terminals to electrically connect to the signal ports of the device under test to thereby provide electrical connection of the testing apparatus to the signal ports. In this way, the efficiency of the test device in electrically connecting the tested device can be obviously improved, and the test efficiency and reliability are improved.

Description

Clamp for testing device and testing system

Technical Field

The present disclosure relates to the field of testing electrical devices, and more particularly, to a fixture and test system for a test apparatus.

Background

Before shipping, electrical equipment such as a frequency converter is generally tested to detect whether its functions are normal and can meet the shipping requirements. In testing electrical devices, this is typically done by a testing apparatus. The test apparatus needs to connect all ports of the electrical device to perform a full test on the electrical device. These ports typically include a line port through which a large current is required, a plurality of input-output (I/O) signal ports, and a dc port.

The electrical connections from the test device to the ports typically need to be made manually. On one hand, as the line port needs to pass large current, once virtual connection occurs, high temperature and even fire can be caused to damage the tested device and the testing device, so that the operation requirement on an operator is increased, and the testing efficiency is reduced. On the other hand, since there are a plurality of I/O signal ports, the connection needs to be performed manually one by one, which is time-consuming and labor-consuming for an operator. In addition, the I/O signal ports are generally small in size, which is likely to cause problems such as poor connection. In addition, these ports are typically arranged in multiple orientations of the device under test, which in turn presents new problems for the connection.

SUMMERY OF THE UTILITY MODEL

Embodiments of the present disclosure provide a fixture and a test system for a test device.

In one aspect of the present disclosure, a fixture for a test device is provided. The fixture comprises at least one carrying part, suitable for carrying the device under test and comprising power terminals and coupling terminals electrically connected to each other, the power terminals being suitable for being electrically connected with the line ports of the device under test; and a connecting member adapted to be detachably coupled with one of the at least one load bearing member, and including: a coupling port adapted for insertion of a coupling terminal therein to provide electrical connection of the test device to the line port via the power terminal; and a movable member including signal terminals and operable to move to drive the signal terminals to electrically connect to the signal ports of the device under test to thereby provide electrical connection of the testing apparatus to the signal ports.

By adopting the clamp according to the embodiment of the disclosure, the efficiency of the testing device in electrically connecting the tested equipment can be obviously improved, and the testing efficiency and reliability can be improved. In addition, while one device under test is tested, additional devices under test can be connected to other load bearing components, thereby further improving testing efficiency.

In some embodiments, the carrier comprises a carrier plate adapted to carry the device under test; and at least one coupling part movably disposed on the carrier plate, wherein the power terminal is disposed on the coupling part to move with the coupling part in a moving direction between a connection position electrically connected with the line port and a separation position separated from the line port. The arrangement mode is more beneficial to the electric connection of the power terminal and the line port of the tested device, and is beneficial to improving the reliability of the connection.

In some embodiments, the coupling terminal is disposed on the coupling member and is aligned with the coupling port when the power terminal is in the connected position to facilitate insertion into the coupling port. This arrangement facilitates the electrical connection between the coupling terminal and the power terminal.

In some embodiments, the carrier plate includes a position-limiting portion adapted to provide a position limitation for the device under test such that the line port of the device under test is aligned with the power terminal in the direction of movement of the coupling component. In this way, the power terminals and the line port of the device under test can be more reliably coupled.

In some embodiments, the at least one coupling member comprises two coupling members arranged on either side of the stop portion, and at least one of the two coupling members is adapted to move between the coupled position and the uncoupled position along the direction of movement. This arrangement is more advantageous where the line ports of the device under test are arranged on opposite sides of the device under test.

In some embodiments, the carrier plate further comprises a guide rail extending in the direction of movement to provide a guide for the movement of the coupling member. In this way, the movement of the coupling member is smoother and more reliable.

In some embodiments, the connecting member further comprises a base plate; a body disposed on the substrate and including a coupling wall in which a coupling port is disposed; and a receiving groove formed on the base plate adjacent to the coupling wall and adapted for the carrier member to be disposed therein to allow the carrier member to move along at least one guide wall of the receiving groove between a connection position in which the coupling terminal of the carrier member is electrically connected with the coupling port and a disconnection position in which the coupling terminal of the carrier member is separated from the coupling port. This arrangement further facilitates reliable electrical connection of the coupling terminal and the coupling port.

In some embodiments, the signal terminals are arranged to align with the signal ports in the insertion direction when the carrier is in the coupled position, and the movable member is adapted to drive the signal terminals to move in the insertion direction such that the signal terminals are electrically connected with the signal ports. In this way, all the signal terminals and the signal ports can be electrically connected in one operation, and the test efficiency and the reliability are remarkably improved.

In some embodiments, the connecting part further comprises a sliding rail arranged on the coupling wall in the insertion direction to provide a guide for the movement of the movable member; and a stop portion arranged on a side of the movable member remote from the slide rail and extending beyond a surface of the movable member in the insertion direction to be stopped by the device under test to prevent further movement of the movable member when the carrier part has not moved to the connection position. In this way, it is possible to prevent possible damage to the signal terminals caused by further movement of the movable member in the case where the signal terminals and the signal ports are misaligned, thereby improving the reliability of the jig.

In some embodiments, the connecting part further comprises a dc terminal arranged to protrude from the coupling wall in a direction parallel to the guiding wall for the carrier part to be electrically connected with a dc port of the device under test when in the connecting position. This arrangement enables the fixture to be adapted to the case of a device under test having a dc port, thereby improving the applicability of the fixture.

In some embodiments, the connection part further includes a plug adapted to be electrically connected to a socket of the test device and to be electrically connected to at least one of the coupling port, the signal terminal, and the direct current terminal via a cable. The arrangement mode is more convenient for establishing the electric connection between the testing device and the tested equipment, and the usability and the reliability of the clamp are improved.

In some embodiments, the connecting means further comprises an operating mechanism coupled to the movable member and adapted to drive the movable member to move. In this way, the movement of the movable member is more reliable.

In some embodiments, the operating mechanism comprises a handle; and a transmission mechanism disposed between the handle and the movable member and adapted to drive the movable member to move in response to movement of the handle. In this way, driving of the movable member can be achieved with a simple structure.

In some embodiments, the clip further comprises an alignment aperture formed in the coupling wall; and an alignment rod protruding from the carrier member in a direction parallel to the guide wall and aligned with the alignment hole in the direction parallel to the guide wall, the alignment rod being adapted to move with the carrier member to be inserted into the alignment hole when the carrier member is in the connected position.

According to a second aspect of the present disclosure, a test system is provided. The test system comprises a test device and a fixture as disclosed according to the first aspect hereinbefore.

Further features of the present disclosure will become apparent from the following description of exemplary embodiments with reference to the attached drawings.

It should be understood that this summary is not intended to identify key or critical features of the embodiments of the disclosure, nor is it intended to be used to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

The above and other objects, features and advantages of the embodiments of the present disclosure will become more readily understood through the following detailed description with reference to the accompanying drawings. Various embodiments of the present disclosure will be described by way of example and not limitation in the accompanying drawings, in which:

FIG. 1 illustrates a perspective view of a fixture for a testing device according to an exemplary embodiment of the present disclosure;

FIG. 2 shows a simplified perspective view of a fixture for a testing device according to an exemplary embodiment of the present disclosure;

FIG. 3 shows a simplified perspective view of a fixture for a test apparatus with a device under test clamped therein according to an exemplary embodiment of the present disclosure;

FIG. 4 shows a simplified perspective view of a carrier member of a fixture for a testing device according to an exemplary embodiment of the present disclosure; and

fig. 5 illustrates a simplified perspective view of a connection component of a clamp for a testing device according to an exemplary embodiment of the present disclosure.

Detailed Description

The principles of the present disclosure will now be described with reference to various exemplary embodiments shown in the drawings. It should be understood that these examples are described merely to enable those skilled in the art to better understand and further implement the present disclosure, and are not intended to limit the scope of the present disclosure in any way. It should be noted that where feasible, similar or identical reference numerals may be used in the figures and that similar or identical reference numerals may indicate similar or identical functions. One skilled in the art will readily recognize from the following description that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.

As used herein, the term "include" and its various variants are to be understood as open-ended terms, which mean "including, but not limited to. The term "based on" may be understood as "based at least in part on". The term "one embodiment" may be understood as "at least one embodiment". The term "another embodiment" may be understood as "at least one other embodiment".

As mentioned previously, in testing electrical equipment, such as frequency converters, it is often necessary to electrically connect a test device to a plurality of ports of the electrical equipment. These ports typically include at least a plurality of line ports, tens of signal ports, and two dc ports. Because the connection between the testing device and each port usually needs to be completed manually, for the line port which needs to pass through large current, if one of the connected line ports has the problems of virtual connection and the like, high temperature and fire can be brought, so that the risks of damage, personnel injury and property loss to the tested equipment are caused, the operating standard of an operator is improved, and the connection efficiency and the testing efficiency are reduced.

For signal ports, tens of signal ports usually need to be connected one by one manually, which also seriously affects the connection efficiency and the test efficiency. Furthermore, if one port is poorly connected, all ports may need to be checked, which is time consuming and laborious for the operator. Therefore, in order to improve the testing efficiency, a fixture capable of connecting the ports quickly and stably is required. In addition, these ports that require connection are often in multiple orientations of the electrical device, which presents challenges to the development of the fixture.

To address or at least partially address the above and other potential problems with the connection of a device under test to a testing apparatus, embodiments of the present disclosure provide a fixture for a testing apparatus. By utilizing the clamp, each port of the tested equipment can be quickly and stably electrically connected with the testing device, so that the testing efficiency is remarkably improved, and the reliability of the testing result is ensured.

An exemplary structure of the clip 100 according to an embodiment of the present disclosure will be described below with reference to fig. 1 to 5. It should be understood that fig. 1 to 5 only exemplarily show the structure of the jig 100 for the case where the device under test 300 is a frequency converter. The fixture 100 of the embodiment of the present disclosure will be described below mainly by taking the device under test 300 as an example of a frequency converter. The situation is similar for the device under test 300 being other electrical devices, for example, only the position and number of the ports need to be adjusted adaptively, and will not be described in detail below.

FIG. 1 shows a perspective view of the fixture 100, FIG. 2 shows a simplified perspective view of the fixture 100 from another angle, and FIG. 3 shows a perspective view of the device under test 300 carried on the fixture 100, according to an embodiment of the disclosure. As shown in fig. 1-3, in general, a clip 100 according to an embodiment of the present disclosure includes at least one load bearing member 101 and a connecting member 102. The carrier part 101 is adapted to carry the device 300 under test. Load-bearing here means that the device under test 300 is firmly attached and positioned. The carrier member 101 includes a power terminal 1011 and a coupling terminal 1012. The power terminal 1011 refers to a terminal to be electrically connected to the line port of the device under test 300. The coupling terminal 1012 refers to a terminal to be electrically connected with the connection member 102.

The line port of the electrical device to be tested refers to a port to be connected with an electrical line. For a power line with three-phase power, there are typically 6 line ports of the electrical device, of which 3 are connection inputs and the other 3 are connection outputs, thereby connecting the electrical device in the power line. The power terminals 1011 of the jig 100 are rigid conductive members, the number and positions of which correspond to the number and positions of the line ports to be connected. When connecting the line port of the device under test 300, the power terminal 1011 only needs to be inserted into the line port in alignment with the line port. This significantly improves the efficiency of the connection compared to the prior art where individual connections are required. In addition, after the power terminal 1011 is inserted into the line port, an operator only needs to simply operate the fastener on the line port, so that the power terminal 1011 and the line port can be stably and electrically connected, various problems caused by virtual connection when a large current is carried do not occur, and the reliability and the safety of the test are improved.

The connecting member 102 can be detachably coupled with one of the carrier members 101. This arrangement will make the operation more convenient. For example, the user merely needs to carry the device under test 300 on the carrier member 101 and then connect the carrier member 101 with the connection member 102 to achieve the electrical connection between the device under test 300 and the fixture 100. The fixture 100 may then be connected to a testing apparatus by suitable means to test the device under test 300.

In case the carrier part 101 has a plurality, during testing of the device under test 300 carried thereon, one of which is coupled to the connecting part 102, the operator may connect the other device under test 300 to the further carrier part 101. After the device under test 300 completes the test, it is only necessary to remove the carrier 101 carrying the tested device under test 300 from the connecting part 102 and mount another carrier 101 carrying the tested device under test 300. The use of a plurality of carrier members 101 can effectively reduce the time required to mount the device under test 300 on the carrier members 101 while improving the connection reliability, and thus significantly improve the test efficiency.

In addition, the bearing part 101 and the connecting part 102 are designed separately, and the advantage of convenient maintenance is also provided. For example, if one of the carrier part 101 and the connecting part 102 is malfunctioning, the operator only needs to replace or repair the malfunctioning part.

To enable coupling with the load bearing part 101 and the device under test 300, the connection part 102 comprises a coupling port 1021 and a movable member 1022. The coupling port 1021 is adapted for insertion of a coupling terminal 1012 of the carrier member 101 therein to thereby provide an electrical connection from the testing device to a line port of the device under test 300 via a power terminal 1011. In some embodiments, the coupling terminal 1012 and the coupling port 1021 may be implemented using an ohm-degree (ODU) connector, which can further improve the reliability of the connection and the test. Further, it should be understood that the use of an Ohm (ODU) connector is merely illustrative and is not intended to limit the scope of the present disclosure. Any other suitable connector or connection is possible as long as a reliable connection is provided. For example, in some alternative embodiments, a Raymond (LEMO) connector or the like may also be employed. Further, similar to the coupling terminal 1012, the power terminal 1011 can also be implemented using an existing connector or joint, thereby enabling cost reduction and facilitating assembly and manufacture of the clip 100.

The movable member 1022 of the connection part 102 is provided with signal terminals 1023, and can be driven to move so as to drive the signal terminals 1023 to be electrically connected to a plurality of signal ports of the device under test 300. In this way, an electrical connection can be provided from the testing apparatus to the signal port of the device under test 300. As can be seen in fig. 2 and 3, the signal terminals 1023 include a plurality of rigid conductive pins. The location and number of the plurality of conductive pins corresponds to the location and number of signal ports on the device under test 300. With the driving of the movable member 1022, the plurality of conductive pins can be inserted all into the signal port in one operation to achieve reliable electrical connection of the signal terminal 1023 and the signal port.

Compared with the conventional scheme in which the signal terminals 1023 and the signal ports are manually connected one by one, the adoption of the jig 100 according to the embodiment of the present disclosure can significantly improve the efficiency of connecting the signal terminals 1023 and the signal ports and the reliability of connection. In this way, the efficiency and reliability of the test is also significantly improved.

Fig. 4 shows an exemplary structure of the bearing member 101. As shown in fig. 4, in some embodiments, the carrier 101 can include a carrier plate 1013 and at least one coupling member 1014. The carrier plate 1013 is adapted to carry the device under test 300. In some embodiments, the carrier plate 1013 can also carry a coupling member 1014. For example, the coupling member 1014 may be movably disposed on the carrier plate 1013 to facilitate electrical connection of the line port and the power terminals 1011 of the device under test 300. For example, in some embodiments, the coupling member 1014 is movable between a coupled position and a decoupled position along a direction of movement S shown in fig. 4. In the coupled position, the power terminals 1011 are inserted into the line port. At this point, an operator may manipulate the fasteners at the line ports on the device under test 300 to make the electrical connection between the power terminals 1011 and the line ports more reliable. In the disengaged position, the electronic terminals are disengaged from the line ports. At this point, the new device 300 under test may be replaced.

In some embodiments, the coupling terminal 1012 of the carrier 101 may be disposed on the coupling member 1014. For example, it is shown in fig. 4 that the power terminal 1011 and the coupling terminal 1012 are respectively provided on different surfaces of the coupling member 1014, thereby facilitating the electrical connection between the power terminal 1011 and the line port, and the connection between the coupling terminal 1012 and the coupling interface of the connection part 102. The coupling member 1014 may be hollow configured to facilitate electrical connection between the power terminal 1011 and the coupling terminal 1012.

Fig. 1-4 illustrate that the at least one coupling member 1014 may include two coupling members 1014. This arrangement is convenient and reliable for most electrical devices under test. This is because for most devices under test 300 the line ports to be connected are typically arranged on opposite sides of the device under test 300. Thus, the two coupling members 1014 are disposed on opposite sides of the carrier plate 1013 for carrying the device under test 300, and the power terminals 1011 are disposed on opposite surfaces of the two coupling members 1014, respectively.

After the device under test 300 is placed in the corresponding position of the carrier plate 1013, moving the two coupling members 1014 towards each other (i.e. towards each other) enables the coupling members 1014 to be moved from the disconnected position to the coupled position, thereby inserting the power terminals 1011 into the line port. When the test is completed, the two coupling members 1014 are moved back (i.e., away from each other) to pull the power terminals 1011 from the line port to allow for the replacement of a new device under test 300. This manner of operation enables the electrical connection between the power terminals 1011 and the line port to be accomplished efficiently and securely.

Of course, it should be understood that the embodiments shown in fig. 1-4 having two coupling members 1014 arranged on opposite sides of the device under test 300, respectively, are merely illustrative and are not intended to limit the scope of the present disclosure. Any other suitable arrangement or configuration is possible. For example, the fixture 100 may also have only one coupling member 1014 for the device under test 300 with the ports under test all on the same side. That is, the number and position of the coupling members 1014 may correspond to the number and position of line ports of the component under test to be connected, so that the electrical connection between the power terminals 1011 and the line ports can be efficiently and stably accomplished.

To facilitate accurate insertion of the power terminals 1011 into the line port, in some embodiments, the carrier plate 1013 can include a retention portion 1015 (such as the retention slot shown in fig. 4) to provide a retention for the device 300 under test. The line port of the device under test 300 held in the holding portion 1015 is aligned with the electronic terminal in the moving direction S of the coupling member 1014, so that the power terminal 1011 can be accurately inserted into the line port with the movement of the coupling member 1014.

The position-limiting portion 1015 is shown in figures 1 and 4 in the form of a position-limiting groove having dimensions corresponding to the dimensions of the device under test 300. During testing, the tested device 300 can be limited and accurately positioned only by placing the tested device 300 into the limiting groove. The arrangement mode can further improve the testing efficiency. Of course, it should be understood that the use of the retaining portion 1015 in the form of a retaining groove is merely illustrative and is not intended to limit the scope of the present disclosure. Any other suitable structure or arrangement is possible. For example, in some alternative embodiments, the position-limiting portion 1015 may employ a plurality of bosses disposed at predetermined positions. The device under test 300 need only be placed between the bosses to complete the retention of the device under test 300.

Further, in some alternative embodiments, a plurality of bosses may be removably disposed in corresponding recesses. The number of recesses may be greater than the number of lands, and the size between the plurality of recesses may correspond to the size of a variety of devices under test 300. When different types of tested devices 300 are replaced, the limit of the corresponding types of tested devices 300 can be realized only by placing the bosses in the grooves with corresponding sizes. In this way, the jig 100 can be made adaptable to devices under test 300 having various sizes, thereby improving the applicability of the jig 100.

To facilitate movement of the coupling member 1014 between the coupled and uncoupled positions, in some embodiments, the carrier plate 1013 can further comprise a guide rail 1016. The coupling member 1014 may have a corresponding groove or rail mating feature thereon. The carrier 101 may thus be arranged on the rail 1016. In this way, the guide rail 1016 can provide a guide for movement of the coupling member 1014, enabling the power terminal 1011 to be inserted into the line port more reliably.

In some embodiments, the guide 1016 can be removably mounted to the carrier plate 1013 via fasteners or the like. This arrangement further facilitates maintenance of the rails 1016. In some alternative embodiments, the guide rail 1016 can be integrally formed on the carrier plate 1013, making the connection between the guide rail 1016 and the carrier plate 1013 more reliable.

Fig. 5 shows an exemplary structure of the connection member 102 of the jig 100. As shown in fig. 5, in some embodiments, connecting member 102 may include a base plate 1026, a body 1024, and a receiving groove 1025. The body 1024 is disposed on the base plate 1026, for example, in a hollow structure, and includes a coupling wall 10241 formed with a coupling port 1021. Body 1024 is hollow to facilitate electrical connections between cables in the jack and coupling port 1021, signal terminals 1023, and/or dc terminals 1029, thereby facilitating assembly and manufacture of clip 100. Receiving grooves 1025 are formed on the base panel 1026 adjacent to the coupling walls 10241 for receiving the coupling members 1014.

The coupling member 1014 carrying the device under test 300 can move within the receiving groove 1025 along the guide wall 10251 between the connected position and the disconnected position. In the connection position, the coupling terminal 1012 of the carrier member 101 is inserted into the coupling interface of the connection member 102 to thereby achieve electrical connection. In the disconnected position, the coupling terminal 1012 is separated from the coupling member 1014, allowing the carrier part 101 carrying a new device under test 300 to be replaced. The arrangement of the accommodating groove 1025 and the guide wall 10251 can facilitate replacement and positioning of the bearing part 101, thereby further improving the testing efficiency.

In some embodiments, when the coupling member 1014 is in the coupling position (i.e., the line port of the device under test 300 is securely connected with the power terminal 1011), the coupling terminal 1012 is aligned with the coupling port 1021 in the direction of movement of the carrier 101 to thereby ensure that the coupling terminal 1012 can be inserted into the coupling port 1021 during movement of the carrier 101 toward the connection position.

In some embodiments, to further ensure that coupling terminal 1012 can be inserted into coupling port 1021, clip 100 can also include an alignment mechanism. The alignment mechanism includes alignment holes 104 formed in coupling wall 10241 and alignment bar 1017 projecting from coupling member 1014 of carriage 101 in a direction parallel to guide wall 10251. When the coupling member 1014 is in the coupling position, the alignment rod 1017 is aligned with the alignment hole 104 in the moving direction of the carrier 101. The alignment bar 1017 may be disposed near the coupling terminal 1012, and the alignment bar 1017 may protrude from the surface of the coupling member 1014 by a length longer than the coupling terminal 1012.

In this way, during movement of carrier 101 along guide wall 10251 from the disconnected position to the connected position, alignment rod 1017 will be able to be inserted into alignment hole 104 if coupling member 1014 is accurately in the coupled position. With further movement of the carrier member 101, the coupling terminal 1012 can be reliably inserted into the coupling port 1021 as well. If the coupling member 1014 is not exactly at the coupling position, the alignment bar 1017 is not aligned with the coupling hole and thus cannot be inserted into the coupling hole. Further movement of the carrier 101 causes the alignment bar 1017 to touch the coupling wall 10241 near the coupling aperture. At this time, since the length of the alignment rod 1017 protruding from the surface of the coupling member 1014 may be longer than the length of the coupling terminal 1012, the coupling terminal 1012 does not touch the coupling wall 10241, and thus the coupling terminal 1012 and the coupling wall 10241 are prevented from being deformed by collision, thereby further improving the reliability of the jig 100. In this case, the operator may adjust the position of the coupling member 1014 and then move the carriage 101.

Of course, it should be understood that the above-described embodiments regarding the receiving groove 1025 and the guiding wall 10251 to receive and guide the bearing member 101, respectively, are only illustrative and are not intended to limit the scope of the present disclosure. Any other suitable structure or arrangement is possible. For example, in some alternative embodiments, connecting member 102 may be formed without receiving groove 1025 and only with corresponding rails along the direction of movement of carriage 101 on connecting member 102. This arrangement allows the fixture 100 to accommodate a greater variety of devices under test 300 and load bearing members 101 having different sizes, thereby increasing the applicability of the fixture 100.

Furthermore, in some embodiments, the carrier 101 may further include a handle 1018 to facilitate manual actuation of the carrier 101 between the connected and disconnected positions, as shown in fig. 2-4. It should be understood that the construction and arrangement shown in fig. 2-4 with respect to handle 1018 is illustrative only and is not intended to limit the scope of the present disclosure. Any other suitable structure or arrangement is possible so long as operation is facilitated. For example, in some embodiments, handle 1018 can also be mounted to one side of carrier plate 1013 via fasteners.

In some alternative embodiments, the movement of the carrier 101 and the coupling member 1014 may also be automatically controlled using a power tool. For example, in some embodiments, a lead screw nut can be provided on the coupling member 1014, while a lead screw and a motor that drives the lead screw to rotate are provided on the bearing plate 1013. The motor may be automatically controlled to drive the lead screw for rotation. As the lead screw rotates, the coupling member 1014 can move between the coupling position and the decoupling position by the driving of the motor. Similarly, a lead screw and a motor may be provided between the carrier 101 and the base 1026. In this way, the carrier member 101 can be moved between the connected position and the disconnected position by the driving of the motor. In addition, the motor can also be controlled automatically by the processing unit or manually by an operator pressing a corresponding button. In this way, the clamp 100 can be automatically controlled, thereby further reducing the labor intensity of the operator and improving the efficiency.

In some embodiments, movement of the movable member 1022 may be accomplished by the operating mechanism 103. For example, as shown in fig. 5, in some embodiments, the operating structure may include a handle 1031 and a transmission mechanism 1032. The handle 1031 is pivotable about a pivot axis. An end of the actuator 1032 is hinged to an end of the handle 1031 remote from the pivot. While the other end of the actuator 1032 may be fixed to the movable member 1022. The transmission mechanism 1032 is movable in the insertion direction I by the movable member 1022 in accordance with the operation of the handle 1031.

In some embodiments, to make movement of movable member 1022 more reliable, coupling part 102 may further include a slide track 1027. As shown in fig. 5, the slide rail 1027 may be disposed on the coupling wall 10241 along the insertion direction I to provide guidance for the movement of the movable member 1022 to improve the reliability of the movement of the movable member 1022.

In some embodiments, to ensure that the signal terminals 1023 and the signal ports are aligned in the insertion direction I and the signal terminals 1023 can be moved to be inserted into the signal ports, as shown in fig. 1, the connection part 102 may further include a stopper 1028. The stop 1028 may be disposed on a side of the movable member 1022 distal from the slide track 1027, i.e., distal from the coupling wall 10241. The stop 1028 extends beyond the surface of the movable member 1022 in the insertion direction I.

In this way, if the carrier member 101 has not moved to the connection position, the signal terminals 1023 are not aligned with the signal ports either. In this case, during the process of the operation mechanism 103 driving the movable member 1022 to move along the insertion direction I, the stopping portion 1028 may be blocked by the device under test 300 from further movement, thereby preventing the signal terminals 1023 from being damaged by further movement of the movable member 1022. If the carrier part 101 has been moved to the connection position and the signal terminals 1023 are aligned with the signal ports in the insertion direction I. The stoppers 1028 slide past the sides of the device under test 300 without being blocked by the device under test 300, so that the signal terminals 1023 can be reliably inserted into the signal ports.

Of course, it should be understood that in some embodiments, similar to the movement of the coupling member 1014 and the carrier 101 described above, the movement of the movable member 1022 may also be accomplished using a power tool. For example, in some embodiments, the movable member 1022 can include a lead screw nut thereon. The operating mechanism 103 may include a lead screw and a motor. The lead screw is coupled to the lead screw nut and is capable of driving the movable member 1022 to move under the drive of the motor. In some embodiments, the motor may also be controlled by the control device to automatically control the movable member 1022.

For example, in some embodiments, the clamp 100 may also include a sensor that detects whether the load bearing member 101 is moved into position. After the sensor detects that the carrier part 101 is moved into position, i.e., the signal terminals 1023 and the signal ports are aligned in the insertion direction I of the movable member 1022, the operator can press the button control motor to move the movable member 1022 in the insertion direction I, thereby inserting the signal terminals 1023 into the signal ports. In some embodiments, after detecting that the carrier 101 has moved into position, the control device may also automatically control the movable member 1022 to move in the insertion direction I to insert the signal terminal 1023 into the signal port, to thereby further reduce the labor intensity of the operator. The above-described embodiments regarding the movement of the movable member 1022 according to the signal of the sensor can be equally applied to the case where the coupling member 1014 and the carrying member 101 move.

For example, in some embodiments, a sensor may also be provided that detects whether the coupling member 1014 has moved into position (i.e., moved into position indicating that the power terminals 1011 and the line port of the device under test 300 are reliably electrically connected). After the sensor detects that the coupling member 1014 has moved into position, the operator may be prompted to operate a fastener on the line port to enhance the electrical connection of the power terminals 1011 and the associated terminals in the device under test 300. Upon completion of the operation of the fasteners, the operator may press a button to cause the carrier 101 to move toward the body 1024 of the connection member 102 to the connection position. In this way, the reliability of the test can be further improved.

For some devices under test 300, there is also a dc port. During testing, the testing device is also required to connect the direct current ports of the testing device. To meet the requirements of these devices under test 300, in some embodiments, connection component 102 may further include dc terminals 1029, for example, disposed on coupling wall 10241 and protruding from coupling wall 10241 in the direction of guide wall 10251, as shown in fig. 1. The dc terminals 1029 are aligned with dc ports on the device under test 300 in the direction of movement of the carrier part 101. During movement of the carrier 101 from the disconnected position to the connected position, the dc terminals 1029 can be inserted into the dc ports to complete the connection.

Of course, it should be understood that the above-described embodiments regarding the location of dc terminals 1029 are merely illustrative and are not intended to limit the scope of the present disclosure. The location and number of dc terminals 1029 can be adjusted according to the location and number of the device 300 under test. For example, in some alternative embodiments, if the dc port of the device under test 300 is located on the same side of the line port, the dc terminal 1029 of the clip 100 may also be disposed on the coupling member 1014 accordingly.

It was described above that the fixture 100 may have a power port, a signal terminal 1023 and a dc terminal 1029 to electrically connect with a line port, a signal port and a dc port of the device under test 300, respectively. After the terminals are connected to the ports, the fixture 100 may also include plugs in some embodiments in order to establish electrical connections between the various ports of the device under test 300 and the testing apparatus. The plug can be coupled to a socket of the test apparatus and can be electrically connected via a cable with the coupling port 1021, the signal terminal 1023 and/or the direct current terminal 1029 of the fixture 100, which in turn can be electrically connected to a line port, a signal port and/or a direct current port of the device under test 300 by an electrical connection between the connection part 102 and the carrier part 101. That is to say, after the bearing part 101 bearing the device under test 300 is moved to the proper position, the test device can be used to test the device under test 300 by inserting the plug into the socket of the test device, thereby further improving the test efficiency and reliability.

According to another aspect of the present disclosure, a test system is also provided. The test system comprises a test apparatus for testing the performance of the device under test 300 and a fixture 100 according to the foregoing description. The test system with the clamp 100 is used for testing, so that the test efficiency can be remarkably improved, and the reliability and the safety of the test can be improved.

In the specification and the claims which follow, unless the context requires otherwise, the terms "comprise" and "comprise" are to be construed as embracing the stated elements or groups of elements but not excluding any other elements or groups of elements. The reference to any prior art in this specification is not, and should not be taken as, an acknowledgment or any form of suggestion that such prior art forms part of the common general knowledge. It should be understood that the following claims are only provisional claims and are examples of possible claims and are not intended to limit the scope of the claims to any future patent application based on the present application. Elements may be added or deleted in the exemplary claims at a later date to further define or redefine the disclosure.

Claims (15)

1. A fixture (100) for a test device, comprising:

at least one carrying component (101) adapted to carry a device under test (300) and comprising power terminals (1011) and coupling terminals (1012) electrically connected to each other, said power terminals (1011) being adapted to be electrically connected with a line port of said device under test (300); and

a connecting member (102) adapted to be detachably coupled with one of the at least one load bearing member (101) and comprising:

a coupling port (1021) adapted for insertion of the coupling terminal (1012) therein to provide electrical connection of the test device to the line port via the power terminal (1011); and

a movable member (1022) comprising signal terminals (1023) and operable to move to drive the signal terminals (1023) into electrical connection with a signal port of the device under test (300) to thereby provide electrical connection of the test apparatus to the signal port.

2. The clamp (100) according to claim 1, wherein the carrier member (101) comprises:

a carrier plate (1013) adapted to carry the device under test (300); and

at least one coupling member (1014) movably arranged on the carrier plate (1013),

wherein the power terminal (1011) is arranged on the coupling member (1014) to move with the coupling member (1014) along a moving direction (S) between a connected position electrically connected with the line port and a disconnected position disconnected from the line port.

3. The clamp (100) of claim 2, wherein the coupling terminal (1012) is arranged on the coupling member (1014) and is aligned with the coupling port (1021) when the power terminal (1011) is in the connected position to facilitate insertion into the coupling port (1021).

4. The jig (100) of claim 2, wherein the carrier plate (1013) comprises:

a position limiting portion (1015) adapted to provide a position limitation for the device under test (300) such that the line port of the device under test (300) is aligned with the power terminal (1011) in the moving direction (S) of the coupling member (1014).

5. The clamp (100) according to claim 4, wherein the at least one coupling member (1014) comprises two coupling members (1014) arranged on both sides of the restraining portion (1015), and at least one of the two coupling members (1014) is adapted to move between the coupled position and the decoupled position along the moving direction (S).

6. The jig (100) of claim 4, wherein the carrier plate (1013) further comprises:

a guide rail (1016) extending in the moving direction (S) to provide guidance for movement of the coupling member (1014).

7. The clamp (100) according to any one of claims 1-6, wherein the connecting member (102) further comprises:

a substrate (1026);

a body (1024) arranged on the base plate (1026) and comprising a coupling wall (10241) arranged with the coupling port (1021); and

a receiving groove (1025) formed on the substrate (1026) adjacent to the coupling wall (10241) and adapted for the carrier member (101) to be disposed therein to allow the carrier member (101) to move along at least one guide wall (10251) of the receiving groove (1025) between a connected position in which the coupling terminal (1012) of the carrier member (101) is electrically connected with the coupling port (1021) and a disconnected position in which the coupling terminal (1012) of the carrier member (101) is separated from the coupling port (1021).

8. The clamp (100) according to claim 7, wherein the signal terminal (1023) is arranged to be aligned with the signal port in an insertion direction (I) when the carrier part (101) is in the coupled position, and

the movable member (1022) is adapted to drive the signal terminal (1023) to move along the insertion direction (I) so that the signal terminal (1023) is electrically connected with the signal port.

9. The clamp (100) according to claim 8, wherein the connecting member (102) further comprises:

-a sliding track (1027) arranged on said coupling wall (10241) along said insertion direction (I) to provide a guide for the movement of said movable member (1022); and

a stop (1028) arranged on a side of the movable member (1022) remote from the slide rail (1027) and extending beyond a surface of the movable member (1022) in the insertion direction (I) to be stopped by the device under test (300) against further movement of the movable member (1022) when the carrying part (101) has not been moved to the connecting position.

10. The clamp (100) according to claim 7, wherein the connecting member (102) further comprises:

-a dc terminal (1029) arranged to protrude from the coupling wall (10241) in a direction parallel to the guiding wall (10251) for electrically connecting the carrier part (101) with a dc port of the device under test (300) in the connected position.

11. The clamp (100) according to claim 10, wherein the connecting member (102) further comprises:

a plug adapted to be electrically connected to a socket of the test apparatus and to be electrically connected to at least one of the coupling port (1021), the signal terminal (1023), and the direct current terminal (1029) via a cable.

12. The clamp (100) according to claim 7, wherein the connecting member (102) further comprises:

an operating mechanism (103) coupled to the movable member (1022) and adapted to drive the movable member (1022) to move.

13. The clamp (100) according to claim 12, wherein the operating mechanism (103) comprises:

a handle (1031); and

a transmission mechanism (1032) arranged between the handle (1031) and the movable member (1022), and adapted to drive the movable member (1022) to move in response to movement of the handle (1031).

14. The clamp (100) of claim 8, further comprising:

an alignment aperture (104) formed in the coupling wall (10241); and

-an alignment rod (1017) protruding from the carrier part (101) in a direction parallel to the guide wall (10251) and aligned with the alignment hole (104) in a direction parallel to the guide wall (10251), the alignment rod (1017) being adapted to move with the carrier part (101) for insertion into the alignment hole (104) when the carrier part (101) is in the connected position.

15. A test system, comprising:

a test device for testing the performance of the device under test (300); and

the fixture (100) according to any of claims 1-14, to provide an electrical connection between the testing device and the device under test (300).

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