Testing device and testing method for power connector

Abstract

The invention provides a test device and a test method for a power supply connector, relates to the technical field of power supply connectors, and particularly relates to the technical field related to power supply connector test, the power supply connector comprises a first connecting piece and a second connecting piece which are connected with each other, and the test device comprises a carrying table, a guide rail, an impact assembly and a rotating assembly; the carrying table is provided with a carrying surface, and the power supply connector is arranged above the carrying surface; the extending direction of the guide rail intersects with the extending direction of the bearing face. The impact assembly is suitable for falling towards the bearing surface along the guide rail and impacting the second connecting piece; the rotating assembly is suitable for driving the power connector to rotate, so that different positions of the second connecting piece in the circumferential direction are impacted. The testing device can simulate the situation that different positions of the second connecting piece are subjected to instant impact force, the accuracy degree of a testing result can be improved, and the reliability of the power connector can be effectively evaluated in the product development stage.

Description

Technical Field

[0001] The present disclosure relates to the technical field of power connectors, specifically to the technical field related to power connector testing, and more particularly to a testing device and a testing method for a power connector. Background Art

[0002] The power connector is a device used to connect various electronic products and is widely used in various electronic products. According to different application requirements, the power connector can be divided into two categories: DC power connector and AC power connector. DC power connector is mainly used for connecting between DC power devices, and AC power connector is mainly used for connecting between AC power devices. During the product development stage, the reliability of the power connector needs to be evaluated. Summary of the invention

[0003] According to a first aspect of the present disclosure, a testing device for a power connector is provided, the power connector comprising a first connector and a second connector connected to each other, the testing device comprising a carrier, a guide rail, an impact assembly and a rotating assembly; the carrier has a bearing surface, and the power connector is placed above the bearing surface; the extension direction of the guide rail intersects with the extension direction of the bearing surface; the impact assembly is suitable for falling along the guide rail toward the bearing surface and impacting the second connector; the rotating assembly is suitable for driving the power connector to rotate so that different circumferential positions of the second connector are impacted.

[0004] In some optional implementations of the present disclosure, the rotating assembly includes a vertical pole, a rotating rod and a fastener; the extension direction of the vertical pole intersects with the extension direction of the bearing surface, the vertical pole has a through hole, and the extension direction of the through hole is parallel to the extension direction of the bearing surface; the rotating rod passes through the through hole, one end of the rotating rod is suitable for detachable connection with the first connecting member, and the rotating rod is suitable for rotating around the central axis of the rotating rod; the fastener passes through a side wall of the through hole.

[0005] In some optional implementations of the present disclosure, the rotating rod is further suitable for sliding along the extension direction of the through hole.

[0006] In some optional implementations of the present disclosure, the testing device further includes an assembly component, the assembly component is used to load the first connecting member, and the assembly component is connected to one end of the rotating rod.

[0007] In some optional implementations of the present disclosure, the assembly component includes an assembly body and a plurality of different assembly blocks; the assembly body has a plurality of different assembly grooves; the assembly block is suitable for being assembled in the corresponding assembly groove, the assembly block has at least one accommodating groove, and the first connecting member is suitable for being arranged in the corresponding accommodating groove.

[0008] In some optional implementations of the present disclosure, the testing device further includes a clamp connected to one end of the rotating rod, and the clamp is suitable for clamping the assembly component.

[0009] In some optional implementations of the present disclosure, the bearing surface has a first bearing area and a second bearing area adjacent to each other, the first connecting member is suitable for being placed in the first bearing area, and the second connecting member is suitable for being placed in the second bearing area; the projection of at least a portion of the impact assembly on the bearing surface along the extension direction of the guide rail is located in the second bearing area.

[0010] In some optional implementations of the present disclosure, the impact assembly includes a moving part and an impact part; the moving part is suitable for moving along the guide rail; the impact part is arranged on a side surface of the moving part facing the bearing surface, and a side surface of the impact part facing away from the moving part is projected on the bearing surface along the extension direction of the guide rail and is located in the second bearing area.

[0011] In some optional implementations of the present disclosure, the distance between the boundary line between the first bearing area and the second bearing area and the projection of the impact member on the bearing surface along the extension direction of the guide rail is 4 mm to 15 mm.

[0012] In some optional implementations of the present disclosure, the moving member has a cargo space; the impact assembly further includes a counterweight member, and the counterweight member is disposed in the cargo space.

[0013] In some optional implementations of the present disclosure, the mass of the counterweight is 20 g to 5000 g.

[0014] In some optional implementations of the present disclosure, the first connecting member has a socket, and the second connecting member is suitable for being inserted into the socket.

[0015] In some optional implementations of the present disclosure, a metal spring is provided in the first connecting member or the second connecting member.

[0016] In some optional implementations of the present disclosure, the power connector is a DC power connector or an AC power connector.

[0017] According to the second aspect of the present disclosure, a method for testing a power connector is provided, and the power connector is tested using the testing device provided by the first aspect of the present disclosure, including: placing the power connector above a carrier; causing an impact assembly to fall and impact a second connecting piece in the power connector; causing a rotating assembly to drive the power connector to rotate; causing the impact assembly to impact the rotated second connecting piece; and detecting whether the power connector can work normally after the impact.

[0018] In some optional implementations of the present disclosure, the impact assembly is made to fall and impact the second connector in the power connector; the rotating assembly drives the power connector to rotate; the impact assembly impacts the rotated second connector; and whether the power connector can work normally after the impact is detected, including: the impact assembly impacts the second connector, and detecting whether the power connector can work normally after the impact; in response to the power connector being able to work normally, performing a first repetitive step, the first repetitive step including: the rotating assembly drives the power connector to rotate, the impact assembly impacts the rotated power connector, and detecting whether the power connector can work normally after the impact; in response to the power connector not being able to work normally, stopping the test; or, the second connector in the power connector has a plurality of pre-impact positions arranged along its circumference, and the test is stopped in response to the plurality of pre-impact positions being impacted and detected.

[0019] In some optional implementations of the present disclosure, the impact assembly is made to fall and impact the second connecting piece in the power connector; the rotating assembly drives the power connector to rotate; the impact assembly is made to impact the rotated second connecting piece; and whether the power connector can work normally after the impact is detected, including: repeating the second repetitive step, the second repetitive step including: making the impact assembly impact the second connecting piece in the power connector, and making the rotating assembly drive the power connector to rotate; the second connecting piece has a plurality of pre-impact positions arranged along its circumference, and after all the plurality of pre-impact positions are impacted, whether the power connector can work normally is detected.

[0020] In some optional implementations of the present disclosure, the impact assembly is made to impact the same position of the second connecting member multiple times in succession.

[0021] In some optional implementations of the present disclosure, the rotation angle of the power connector driven by the rotating assembly is less than or equal to 90°.

[0022] In some optional implementations of the present disclosure, the impact assembly falls along the guide rail toward the bearing surface at a preset height, and the preset height is 0.05m to 1m.

[0023] In some optional implementations of the present disclosure, the impact assembly includes a counterweight; the impact assembly falls along the guide rail toward the bearing surface at a preset height, and the ratio of the mass of the counterweight to the preset height is 0.02kg / m to 100kg / m; and / or, the ratio of the mass of the counterweight to the impact distance is 1.4g / mm to 1250g / mm, and the impact distance is the distance between the connection point between the first connecting member and the second connecting member and the impacted position on the surface of the second connecting member.

[0024] According to a third aspect of the present disclosure, a method for testing a power connector is provided, wherein the power connector is tested using the testing device provided by the first aspect of the present disclosure; the second connector in the power connector has a plurality of pre-impact positions arranged along its circumference, and the plurality of pre-impact positions are respectively located in the same plurality of power connectors; the testing method comprises: placing a power connector above a carrier; causing an impact component to impact the second connector in the power connector, and detecting whether the power connector can work normally after the impact; performing a third repetitive step, and the third repetitive step comprises: replacing the power connector, causing the rotating component to drive the replaced power connector to rotate, causing the impact component to impact the rotated power connector, and detecting whether the power connector can work normally after the impact; and stopping the test until the pre-impact positions in the plurality of power connectors are impacted and detected.

[0025] According to the technical solution disclosed in the present invention, the impact assembly can fall along the guide rail toward the bearing surface and impact the second connector, thereby simulating the situation where the second connector is subjected to an instantaneous impact force, which is convenient for evaluating the influence of the instantaneous impact force on the reliability of the power connector. At the same time, the rotating assembly drives the power connector to rotate, so that the impact position of the impact assembly on the surface of the second connector can be adjusted along the circumference of the second connector, thereby simulating the situation where different positions of the second connector are subjected to an instantaneous impact force, which is conducive to improving the accuracy of the test results and facilitating the effective evaluation of the reliability of the power connector in the product development stage.

[0026] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0028] Figure 1 is a schematic diagram of a testing process of a power connector provided according to Embodiment 1 of the present disclosure;

[0029] Figure 2 is a structural schematic diagram of a testing device for a power connector provided according to Embodiment 1 of the present disclosure;

[0030] Figure 3 yes Figure 2 A top view of the rotating assembly, assembly parts and fixtures;

[0031] Figure 4 yes Figure 2 A side view of the rotating assembly;

[0032] Figure 5 yes Figure 2 Top view of the mid-stage;

[0033] Figure 6 is a cross-sectional view of a second connecting member provided according to Embodiment 1 of the present disclosure;

[0034] Figure 7 is a test flow chart of a power connector provided according to Embodiment 2 of the present disclosure;

[0035] Figure 8 is a test flow chart of a power connector provided according to Embodiment 2 of the present disclosure;

[0036] Fig. 9 is a test flow chart of another power connector provided according to Embodiment 2 of the present disclosure;

[0037] Fig.10 is a test flow chart of another power connector provided according to Embodiment 2 of the present disclosure;

[0038] Fig.11 is a structural schematic diagram of a power connector provided according to an embodiment of the present disclosure;

[0039] Description of Figure Numbers:

[0040] 1-carrier; 11-first bearing area; 12-second bearing area; 2-guide rail; 3-impact assembly; 31-moving part; 32-impact part; 33-counterweight; 4-rotating assembly; 41-vertical pole; 42-rotating rod; 43-fastener; 44-knob; 5-assembly part; 6-clamp; A-power connector; A1-first connecting piece; A2-second connecting piece; A21-metal spring; A22-round needle. DETAILED DESCRIPTION

[0041] The following is a description of exemplary embodiments of the present application in conjunction with the accompanying drawings, including various details of the embodiments of the present application to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present application. Similarly, for clarity and conciseness, the description of well-known functions and structures is omitted in the following description. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0042] During the product development phase, the reliability of the power connector needs to be evaluated. Figure 1In the related art, the reliability test for the power connector usually includes the following steps: the power connector A includes a first connector A1 and a second connector A2 connected to each other, a pressure is applied to the second connector A2, and then the power connector A is tested to determine whether it can work normally. However, this test method cannot simulate the situation where the second connector is subjected to an instantaneous impact force, and therefore cannot test the reliability of the power connector in this situation.

[0043] Example 1

[0044] Please refer to Figure 2-Figure 4 , Figure 2 A schematic diagram of a test device for a power connector provided by an embodiment of the present disclosure is shown in FIG. Figure 3 Shows Figure 2 The top view of the rotating assembly. Figure 4 yes Figure 2 The power connector includes a first connector and a second connector connected to each other, and the test device may include a carrier 1, a guide rail 2, an impact assembly 3 and a rotating assembly 4. The carrier 1 has a bearing surface, and the power connector is suitable for being placed above the bearing surface; the extension direction of the guide rail 2 intersects with the extension direction of the bearing surface; the impact assembly 3 is suitable for falling along the guide rail 2 toward the bearing surface and impacting the second connector; the rotating assembly 4 is suitable for driving the power connector to rotate so that different positions of the circumference of the second connector are impacted.

[0045] In the above test device, the impact assembly 3 can fall along the guide rail 2 toward the bearing surface and impact the second connector, thereby simulating the situation where the second connector is subjected to instantaneous impact force, which is convenient for evaluating the influence of instantaneous impact force on the reliability of the power connector.

[0046] At the same time, the rotating component 4 drives the power connector to rotate, so that the impact position of the impact component 3 on the surface of the second connecting part can be adjusted along the circumference of the second connecting part, thereby simulating the situation where different positions of the second connecting part are subjected to instantaneous impact force, which is beneficial to improving the accuracy of the test results and is beneficial to effectively evaluate the reliability of the power connector during the product development stage.

[0047] In this embodiment, the guide rail 2 defines the falling path of the impact assembly 3. The extension direction of the guide rail 2 can be perpendicular to the extension direction of the bearing surface, the bearing surface can be placed horizontally, and the impact assembly 3 can fall in a free fall motion or a motion form similar to free fall motion. Further, the guide rail 2 can be fixed to the bearing surface.

[0048] In this embodiment, the power connector has a rotation axis. Driven by the rotation assembly, the power connector rotates around its rotation axis. The rotation axis can coincide with the central axis of the power connector or form an acute angle with the central axis of the power connector. The circumferential direction of the second connector is perpendicular to the extension direction of its rotation axis. Furthermore, the impact force of the impact assembly 3 can be perpendicular to the second connector or form an oblique angle with the second connector. Fig.11 The circumferential direction of the second connector A2 when the rotation axis coincides with the central axis of the power connector A is exemplarily shown.

[0049] In this embodiment, the rotating assembly 4 includes a vertical rod 41, a rotating rod 42 and a fastener 43. The extension direction of the vertical rod 41 intersects with the extension direction of the bearing surface, and the vertical rod 41 has a through hole, and the extension direction of the through hole is parallel to the extension direction of the bearing surface; the rotating rod 42 passes through the through hole, and one end of the rotating rod 42 is suitable for detachable connection with the first connecting member, and the rotating rod 42 is suitable for rotating around the central axis of the rotating rod 42; the fastener 43 passes through one side wall of the through hole. The power connector can be driven to rotate by driving the rotating rod 42 to rotate. It should be noted that the rotating assembly 4 can also adopt other structures. Specifically, the vertical rod 41 can be set on the carrier 1, for example, the vertical rod 41 is fixed on the bearing surface.

[0050] Specifically, the rotating rod 42 has a first end and a second end opposite to each other, and the first end is adapted to be detachably connected to the first connecting member. As an optional embodiment, the rotating assembly 4 may further include a knob 44, which is located at the second end, and the rotating rod 42 can be rotated around the central axis of the rotating rod 42 by rotating the knob 44. The setting of the knob 44 facilitates the tester to perform the rotation operation.

[0051] As another optional embodiment, the rotating assembly 4 may further include a rotating driver (not shown), which is suitable for driving the rotating rod 42 to rotate around the central axis of the rotating rod 42; the testing device may further include a controller, which is used to control the rotating driver, thereby controlling the rotation of the rotating assembly 4. Specifically, the controller may at least control the activation of the rotating driver according to the detection result, for example, the controller may also control the rotation angle and rotation speed of the rotating assembly 4.

[0052] In this embodiment, the rotating rod 42 is also suitable for sliding along the extension direction of the through hole to drive the first connecting member and the second connecting member to slide along the extension direction of the rotating rod 42, thereby changing the impact position and adjusting the impact distance. The impact distance is the distance between the connection between the first connecting member and the second connecting member and the impact position. Therefore, it is possible to simulate the situation where the positions at different lengths from the connection between the first connecting member and the second connecting member are subjected to instantaneous impact force, and then evaluate the influence of instantaneous impact force at different distances on the reliability of the power connector, further improving the accuracy of the test results.

[0053] In this embodiment, see Figure 2-Figure 3 The test device also includes an assembly component 5, which is used to load the first connecting member, and the assembly component 5 is connected to one end of the rotating rod 42. The setting of the loading component can realize the detachable connection between the rotating rod 42 and the first connecting member, so as to facilitate the assembly of the first connecting member on the test device and to facilitate the removal of the first connecting member from the test device. The rotating rod 42 drives the assembly component 5 to rotate, thereby driving the first connecting member and the second connecting member to rotate, so that the impact position changes along the circumference of the first connecting member; the rotating rod 42 drives the assembly component 5 to slide along the extension direction of the rotating rod 42, thereby driving the first connecting member and the second connecting member to slide and adjust the impact distance. Furthermore, the connection between the first connecting member and the second connecting member is exposed outside the assembly component 5. It should be noted that the assembly component 5 can be directly connected to one end of the rotating rod 42, or indirectly connected, or fixedly connected, or detachably connected.

[0054] In an optional embodiment, the assembly component 5 may include an assembly body and a groove located on the surface of the assembly body, and the first connecting member is suitable for being installed in the groove and exposing its structure for connecting with the second connecting member. Figure 2 The test device may further include a fixture 6, which is connected to one end of the rotating rod 42 and is suitable for clamping the assembly component 5. When the power connector loaded by the assembly component 5 in the fixture 6 needs to be replaced, the assembly component 5 can be replaced by controlling the fixture 6. At the same time, by adjusting the inclination of the assembly component in the fixture, the inclination angle of the power connector relative to the bearing surface can be adjusted, thereby adjusting the direction of the impact force.

[0055] In another optional embodiment, the assembly component 5 includes an assembly body (not shown) and a plurality of different assembly blocks (not shown). The assembly body has a plurality of different assembly grooves, and the assembly block is suitable for being assembled in the corresponding assembly groove; the assembly block has at least one accommodating groove, and the first connector is suitable for being arranged in the corresponding accommodating groove. Specifically, the plurality of assembly grooves in the assembly body have different shapes and / or sizes, and each assembly groove has a corresponding assembly block, and a suitable assembly block can be selected according to the first connector in the power connector. The assembly of different power connectors can be completed by replacing the assembly block, and the first connectors in different power connectors have different shapes and / or sizes, so that the test device can adapt to different power connectors, thereby improving the applicability of the test device. The assembly block can also have a plurality of accommodating grooves of different shapes and / or sizes to further improve the applicability of the test device. Further, the test device may also include a fixture, which is connected to one end of the rotating rod, and the fixture is suitable for clamping the assembly component. When there is no suitable assembly groove in the assembly body in the fixture, the assembly component can be replaced by controlling the fixture. At the same time, by adjusting the inclination of the assembly component in the fixture, the inclination angle of the power connector relative to the bearing surface can be adjusted, thereby adjusting the direction of the impact force.

[0056] See also Figure 5 , Figure 5 1 is a top view of a carrier, the carrier surface of the carrier 1 has a first bearing area 11 and a second bearing area 12 adjacent to each other, the first connector is suitable for being placed in the first bearing area 11, and the second connector is suitable for being placed in the second bearing area 12; at least part of the projection of the impact component 3 on the bearing surface along the extension direction of the guide rail 2 is located in the second bearing area, so that the impact component 3 hits the second connector after falling. Exemplarily, the extension direction of the guide rail 2 is perpendicular to the extension direction of the bearing surface, and at least part of the positive projection of the impact component 3 on the bearing surface is located in the second bearing area 12. Optionally, the assembly component 5 can be arranged in the first bearing area 11.

[0057] In this embodiment, see Figure 2 , the impact assembly 3 includes a moving member 31 and an impact member 32. The moving member 31 is suitable for moving along the guide rail 2; the impact member 32 is arranged on a side surface of the moving member 31 facing the bearing surface, and the projection of the side surface of the impact member 32 away from the moving member 31 on the bearing surface along the extension direction of the guide rail 2 is located in the second bearing area 12, so that the impact member 32 hits the second connecting member. Exemplarily, the extension direction of the guide rail 2 is perpendicular to the extension direction of the bearing surface, and the positive projection of the impact member 32 on the bearing surface is located in the second bearing area 12. Figure 5 The impact member 32 in the figure represents the projection of the impact member on the bearing surface. The guide rail 2 and the moving member 31 define the falling path and the rising path of the impact member 32. Specifically, the moving member 31 can be a bracket, and the impact member 32 can be a hammer head.

[0058] Furthermore, the testing device may also include a lifting assembly (not shown) and a locking member (not shown). The lifting assembly is suitable for lifting the impact assembly 3 to a preset height so that the impact assembly 3 falls at the preset height; the locking member is suitable for fixing the impact assembly 3 at a preset height of the guide rail 2 and releasing the impact assembly 3 at the preset height to make it fall.

[0059] Exemplarily, the lifting assembly includes a winding mechanism and a pulling rope, and the locking member includes a magnetic member. Among them, the movable member 31 has a maximum preset height, and the maximum preset height is located between the winding mechanism and the carrier 1. The winding mechanism is used to wind up and unwind the pulling rope; one end of the pulling rope is connected to the magnetic member, and the magnetic member can be adsorbed together with the movable member 31 after being turned on. The magnetic member is lifted by winding up the pulling rope, thereby driving the impact assembly 3 to be lifted until the impact assembly 3 is lifted to a preset height, and the magnetic member is closed to release the impact assembly 3. After the impact is completed, the pulling rope is unwound, so that the magnetic member descends to the height of the movable member 31 and is re-adsorbed with the magnetic member, and then the pulling rope is wound up to lift the impact assembly 3 to prepare for the next impact. The magnetic member can be an electromagnet.

[0060] Furthermore, the controller can be electrically connected to the reeling mechanism and the magnetic attraction member to control the reeling mechanism to reel in and unreel, and to control the opening and closing of the magnetic attraction member. The controller can also control the number of consecutive impacts.

[0061] In this embodiment, see Figure 2 , the moving part 31 may have a loading space; the impact assembly 3 further includes a counterweight 33, which is arranged in the loading space. The impact strength of the impact assembly 3 is mainly controlled by the preset height and mass of the impact assembly 3. The arrangement of the counterweight 33 can increase the mass of the impact assembly 3, thereby improving the impact strength of the impact assembly 3. There may be multiple counterweights 33 with different masses, and different counterweights 33 may be selected as needed to achieve regulation of the impact strength.

[0062] Specifically, the mass of the counterweight 33 is 20 g to 5000 g, preferably 100 g to 500 g. The counterweight 33 may be a weight.

[0063] In order to prevent the counterweight 33 from falling due to the reaction force of the collision after the collision between the impact assembly 3 and the second connecting member, the moving member 31 may include a bracket and a baffle (not shown), the two ends of the bracket are suitable for moving along the guide rail 2, and the baffle is arranged in the central area of ​​the side surface of the bracket away from the carrier 1, and the baffle and the bracket form an open loading space. Compared with the counterweight 33 being directly placed on the bracket, the setting of the baffle can prevent the counterweight 33 from falling after the collision between the impact assembly 3 and the carrier 1. A buffer pad can also be provided on the bearing surface of the carrier 1 to prevent the counterweight 33 from damaging the carrier 1 after it falls.

[0064] See also Figure 5 In this embodiment, the distance d between the boundary line between the first bearing area 11 and the second bearing area 12 and the projection of the impact member 32 on the bearing surface along the extension direction of the guide rail 2 is 4 mm to 15 mm. The connection between the first connecting member and the second connecting member is located at the boundary line between the first bearing area and the second bearing area, and the distance corresponds to the impact distance. By limiting the above distance, it is ensured that the impact member can collide with the second connecting member after falling.

[0065] In this embodiment, the first connector is directly connected to the second connector. For example, the first connector has a jack, the second connector is suitable for being inserted into the jack to be electrically connected to the first connector, the port of the jack located on the outer surface of the first connector is the socket, and the connection between the first connector and the second connector corresponds to the socket. The first connector can be a socket, and the second connector can be a plug.

[0066] In this embodiment, the first connector or the second connector may have a metal spring, and the metal spring is used to electrically connect the first connector and the second connector. After the second connector is subjected to an instantaneous impact force, the metal spring may undergo irreversible deformation, thereby affecting the connection effect between the first connector and the second connector, thereby reducing the reliability of the power connector. It should be noted that after the second connector is impacted, the metal spring undergoes a greater degree of instantaneous deformation; and after pressure is applied to the second connector, the metal spring undergoes a smaller degree of instantaneous deformation, so it cannot be used to simulate the situation after the second connector is subjected to an instantaneous impact force. The test device provided in this embodiment can be used to evaluate the reliability of the power connector after being subjected to an instantaneous impact force. See. Figure 6 , Figure 6 A cross-sectional view of a second connecting member is shown, wherein the second connecting member has a round needle A22 and a metal spring A21.

[0067] In this embodiment, the power connector is a DC power connector or an AC power connector.

[0068] Example 2

[0069] Please refer to Figure 7 , Figure 7 This is a test flow chart of a power connector provided in an embodiment of the present disclosure, which uses the test device provided in Example 1 to test the power connector. The test method includes:

[0070] S1. Place the power connector above the stage;

[0071] S2, causing the impact assembly to fall and impact the second connecting piece in the power connector;

[0072] S3, causing the rotating assembly to drive the power connector to rotate;

[0073] S4, causing the impact assembly to impact the rotated second connecting member;

[0074] S5. Check whether the power connector can work normally after the collision.

[0075] This test method can simulate the situation where different positions of the second connector are subjected to instantaneous impact force, effectively improving the accuracy of the test results, and is conducive to effectively evaluating the reliability of the power connector during the product development stage. It should be noted that this test method does not limit the order of the steps.

[0076] As an optional implementation, see Figure 8 Steps S2 to S5 can be specifically performed in the following manner:

[0077] S110, causing the impact component to impact the second connector in the power connector to detect whether the power connector can work normally after the impact;

[0078] S121, in response to the power connector being able to work normally, performing a first repetitive step, the first repetitive step comprising: causing the rotating component to drive the power connector to rotate, causing the impact component to impact the rotated power connector, and detecting whether the power connector can work normally after the impact;

[0079] S122. In response to the power connector failing to work properly, the test is stopped; or, the second connector in the power connector has a plurality of pre-impact positions arranged along its circumference, and in response to the plurality of pre-impact positions being impacted and detected, the test is stopped.

[0080] The method drives a power connector to rotate by a rotating assembly, and adjusts the impact position along the circumference of the second connecting member to simulate the situation where different positions of the second connecting member are subjected to instantaneous impact force.

[0081] In short, if the power connector cannot work normally after the impact component hits one of the pre-impact positions on the surface of the second connector, it means that the power connector cannot withstand the impact force of the impact component, and the test is stopped; if the power connector can work normally after the impact component hits one of the pre-impact positions on the surface of the second connector, it means that the first pre-impact position can withstand the impact force of the impact component, and the impact position is adjusted by rotating the rotating component so that the impact component hits other pre-impact positions, and the power connector after the impact is tested, and the subsequent operation is selected according to the test result, that is, stop the test or repeat the rotation, impact and test. The second connector has N pre-impact positions arranged along its circumference, N is an integer greater than 1, and the test is stopped until all N pre-impact positions are impacted and tested; or, until the power connector cannot work normally after the nth impact, the test is stopped, and n is an integer greater than 1 and less than N.

[0082] Correspondingly, the test results of the power connector include: N pre-impact positions can all withstand the above-mentioned impact force, the reliability of the power connector meets the test conditions, and the number of times the rotating component drives the power connector to rotate is N-1; or, the 1st to m-1th pre-impact positions can all withstand the above-mentioned impact force, the mth pre-impact position cannot withstand the above-mentioned impact force, m is an integer greater than 1 and less than or equal to N, the reliability of the power connector does not meet the test conditions, and the number of times the rotating component drives the power connector to rotate is m-1.

[0083] As another optional implementation, see Fig. 9 Steps S2 to S5 can be specifically performed in the following manner:

[0084] S210, repeating the second repeating step, the second repeating step comprising: causing the impact component to impact the second connecting member in the power connector, so that the rotating component drives the power connector to rotate;

[0085] S220: The second connecting member has a plurality of pre-impact positions arranged along its circumference, and after all the pre-impact positions are impacted, it is detected whether the power connector can work normally.

[0086] Optionally, the impact component can impact the same position of the second connector multiple times in succession, that is, the same position can be impacted multiple times in succession in both step S2 and step S4, that is, after the same position is impacted multiple times in succession, the rotating component can drive the power connector to rotate or detect whether the power connector can work normally. Impacting the same position multiple times in succession can add up the impact effects and simulate the situation where the same position is subjected to multiple instantaneous impact forces. Specifically, the number of impacts of the impact component on the same position of the second connector can be greater than 5, for example, 10-20. The number of impacts at different impact positions can be the same or different, preferably the same.

[0087] Optionally, the rotation angle of the power connector driven by the rotating component is less than or equal to 90°, and the above angle range is conducive to ensuring the test accuracy of the test method. It should be noted that the rotating component can also rotate at other angles, and the angle of each rotation can be the same or different.

[0088] Optionally, the impact assembly falls along the guide rail toward the bearing surface at a preset height, and the preset height is 0.05m to 1m, preferably 0.1m to 0.5m. The preset height of the impact assembly 3 is one of the main factors affecting the impact force of the impact assembly 3. The preset height can be selected as needed to achieve regulation of the impact force.

[0089] In the present embodiment, the impact assembly 3 may include a moving member 31 and an impact member 32. The moving member 31 is suitable for moving along the guide rail 2; the impact member 32 is arranged on a side surface of the moving member 31 facing the bearing surface, and the projection of the side surface of the impact member 32 away from the moving member 31 on the bearing surface along the extension direction of the guide rail 2 is located in the second bearing area 12. The preset height of the impact assembly refers to the distance between the side surface of the impact member 32 away from the moving member 31 and the side surface of the second connecting member away from the bearing surface. Before the impact assembly falls at the preset height, the impact member 32 is opposite to a pre-impact position in the circumference of the second connecting member along the extension direction of the guide rail 2, so that after the impact assembly falls, the impact member 32 hits the pre-impact position; accordingly, the stopping moment when the rotating assembly drives the power connector to rotate is the pre-impact position in the circumference of the second connecting member along the extension direction of the guide rail 2.

[0090] The impact assembly 3 may also include a counterweight 33. The moving member 31 has a loading space, and the counterweight 33 is arranged in the loading space. The mass of the impact assembly 3 is one of the main factors affecting the impact force of the impact assembly 3. The setting of the counterweight 33 can increase the mass of the impact assembly 3, thereby improving the impact force of the impact assembly 3. Different counterweights 33 can be selected as needed to achieve the regulation of the impact force. Specifically, the ratio of the mass of the counterweight 33 to the preset height can be 0.02kg / m~100kg / m, preferably 0.2kg / m~5kg / m; and / or, the ratio of the mass of the counterweight 33 to the impact distance can be 1.4g / mm~1250g / mm, preferably 6.7g / mm~125g / mm, and the impact distance is the distance between the connection between the first connector and the second connector and the impacted position on the surface of the second connector. The preset height and impact distance can be adjusted according to the mass of the counterweight 33 to adjust the impact force.

[0091] Example 3

[0092] Fig.10 A test flow chart of a power connector provided in an embodiment of the present disclosure is provided, which tests the power connector using the test device provided in Example 1. The second connector in the power connector has a plurality of pre-impact positions arranged along its circumference, and the plurality of pre-impact positions are respectively located in the same plurality of power connectors.

[0093] Please refer to Fig.10 , the test methods include:

[0094] S1′, placing a power connector on the carrier;

[0095] S2′, causing the impact component to impact the second connector in the power connector, and detecting whether the power connector can work normally after the impact;

[0096] S3′, performing a third repetitive step, the third repetitive step comprising: replacing the power connector, causing the rotating component to drive the replaced power connector to rotate, causing the impact component to impact the rotated power connector, and detecting whether the impacted power connector can work normally;

[0097] S4′, until the pre-impact positions in multiple power connectors are all impacted and detected, the test is stopped.

[0098] Different circumferential positions of the power connector can withstand different magnitudes of instantaneous impact force. By impacting and testing N identical power connectors with different impact positions of each power connector, the tolerance of the N positions of the second connector in the power connector to the impact force of the impact component is obtained, so as to obtain the distribution of weak points of force in the power connector, so as to facilitate the strengthening design of the weak points, thereby improving the reliability of the power connector.

[0099] The power connectors before and after replacement are of the same model and have the same relative position in the test device, that is, the power connector after replacement and the power connector before replacement have the same spatial position in the test device. For example, the test device includes a fixture and a loading portion, the power connectors before and after replacement have the same position in the loading portion, and the relative position and inclination of the loading portion in the fixture are the same.

[0100] Optionally, the impact assembly is made to impact the same position of the second connector for multiple consecutive times, and then whether the power connector can work normally is detected, that is, the same position can be impacted multiple times in succession in both step S2′ and step S3′. Impacting the same position multiple times in succession can add up the impact effects, and can simulate the situation where the same position is subjected to multiple instantaneous impact forces. Specifically, the number of impacts of the impact assembly on the same position of the second connector can be greater than 5, for example, 10-20. The number of impacts at different impact positions can be the same or different, and are preferably the same.

[0101] Optionally, the rotation angle of the power connector driven by the rotating component is less than or equal to 90°, and the above angle range is conducive to ensuring the test accuracy of the test method. It should be noted that the rotating component can also rotate at other angles, and the angle of each rotation can be the same or different.

[0102] Optionally, the impact assembly falls along the guide rail toward the bearing surface at a preset height, and the preset height is 0.05m to 1m, preferably 0.1m to 0.5m.

[0103] In the present embodiment, the impact assembly 3 may include a moving member 31 and an impact member 32. The moving member 31 is suitable for moving along the guide rail 2; the impact member 32 is arranged on a side surface of the moving member 31 facing the bearing surface, and the projection of the side surface of the impact member 32 away from the moving member 31 on the bearing surface along the extension direction of the guide rail 2 is located in the second bearing area 12. The preset height of the impact assembly refers to the distance between the side surface of the impact member 32 away from the moving member 31 and the side surface of the second connecting member away from the bearing surface. Before the impact assembly falls at the preset height, the impact member 32 is opposite to a pre-impact position in the circumference of the second connecting member along the extension direction of the guide rail 2, so that after the impact assembly falls, the impact member 32 hits the pre-impact position; accordingly, the stopping moment when the rotating assembly drives the power connector to rotate is the pre-impact position in the circumference of the second connecting member along the extension direction of the guide rail 2.

[0104] The impact assembly 3 may also include a counterweight 33. The moving member 31 has a loading space, and the counterweight 33 is arranged in the loading space. Specifically, the ratio of the mass of the counterweight 33 to the preset height can be 0.02kg / m~100kg / m, preferably 0.2kg / m~5kg / m; and / or, the ratio of the mass of the counterweight 33 to the impact distance can be 1.4g / mm~1250g / mm, preferably 6.7g / mm~125g / mm, and the impact distance is the distance between the connection between the first connecting member and the second connecting member and the impacted position on the surface of the second connecting member. The preset height and impact distance can be adjusted according to the mass of the counterweight 33 to adjust the impact force.

[0105] It should be noted that the testing device provided in Example 1 may also use other methods to test the power connector, including but not limited to the testing methods provided in Examples 2-3.

[0106] The test device can simulate the situation where different positions of the second connecting part are subjected to instantaneous impact force, and the intensity of the instantaneous impact force (corresponding to the impact intensity), impact distance (corresponding to the impact distance), and impact direction are all adjustable, which can meet a variety of test conditions and effectively improve the accuracy of the test results; at the same time, it can also adapt to different power connectors and has high flexibility.

[0107] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0108] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate the orientation or positional relationship of the device or element in normal use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation at any time, and therefore cannot be understood as limiting the present invention in this regard. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0109] The above specific implementations do not constitute a limitation on the protection scope of this application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included in the protection scope of this application.

Claims

1. A testing device for a power connector, the power connector comprising a first connector and a second connector connected to each other, characterized in that: The testing device comprises: A carrier, the carrier having a carrying surface, and the power connector is placed above the carrying surface; A guide rail, wherein an extension direction of the guide rail intersects with an extension direction of the bearing surface; an impact assembly, the impact assembly being adapted to fall along the guide rail toward the bearing surface and impact the second connecting member; A rotating assembly is adapted to drive the power connector to rotate so that different circumferential positions of the second connecting member are impacted.

2. The testing device according to claim 1, wherein: The rotating assembly comprises: A vertical pole, wherein the extension direction of the vertical pole intersects with the extension direction of the bearing surface, and the vertical pole has a through hole, and the extension direction of the through hole is parallel to the extension direction of the bearing surface; A rotating rod, the rotating rod passes through the through hole, one end of the rotating rod is suitable for being detachably connected to the first connecting member, and the rotating rod is suitable for rotating around the central axis of the rotating rod; A fastener passes through a side wall of the through hole.

3. The testing device according to claim 2, wherein: The rotating rod is also suitable for sliding along the extending direction of the through hole.

4. The testing device according to claim 2, wherein: The testing device also includes: An assembly component is used to load the first connecting member, and the assembly component is connected to one end of the rotating rod.

5. The testing device according to claim 4, wherein: The assembly components include: An assembly body, wherein the assembly body has a plurality of different assembly grooves; A plurality of different assembly blocks are provided, wherein the assembly blocks are suitable for being assembled in the corresponding assembly grooves, the assembly blocks have at least one accommodating groove, and the first connecting member is suitable for being arranged in the corresponding accommodating groove.

6. The testing device according to claim 4 or 5, wherein: The testing device also includes: A clamp is connected to one end of the rotating rod, and the clamp is suitable for clamping the assembly component.

7. The testing device according to any one of claims 1 to 5, wherein: The bearing surface has a first bearing area and a second bearing area adjacent to each other, the first connecting member is suitable for being placed in the first bearing area, and the second connecting member is suitable for being placed in the second bearing area; at least a portion of the projection of the impact assembly on the bearing surface along the extension direction of the guide rail is located in the second bearing area.

8. The testing device according to claim 7, wherein: The impact assembly comprises: a moving member, the moving member being adapted to move along the guide rail; The impact member is arranged on a side surface of the moving member facing the bearing surface, and a side surface of the impact member facing away from the moving member has a projection on the bearing surface along the extension direction of the guide rail located in the second bearing area.

9. The testing device according to claim 8, wherein: The distance between the boundary line between the first bearing area and the second bearing area and the projection of the impact member on the bearing surface along the extension direction of the guide rail is 4 mm to 15 mm.

10. The testing device according to claim 8, wherein: The moving part has a carrying space; the impact assembly also includes: A counterweight is arranged in the cargo space.

11. The testing device according to claim 10, wherein: The mass of the counterweight is 20g to 5000g.

12. The testing device according to any one of claims 1 to 5, wherein: The first connecting member has a socket, and the second connecting member is suitable for being inserted into the socket.

13. The testing device according to any one of claims 1 to 5, wherein: The first connecting member or the second connecting member has a metal spring.

14. The testing device according to claim 13, wherein: The power connector is a DC power connector or an AC power connector.

15. A method for testing a power connector, characterized in that: Using the testing device according to any one of claims 1 to 14 to test a power connector comprises: placing the power connector above the carrier; causing the impact assembly to fall and impact the second connecting member in the power connector; The rotating assembly drives the power connector to rotate; causing the impact assembly to impact the rotated second connecting member; Detect whether the power connector can work normally after the impact.

16. The testing method according to claim 15, wherein: The impact component is made to fall and impact the second connecting member in the power connector; and the rotating component drives the power connector to rotate; causing the impact assembly to impact the rotated second connecting member; Detecting whether the power connector can work normally after the collision includes: Making the impact component impact the second connecting member to detect whether the power connector can work normally after the impact; In response to the power connector being able to work normally, performing a first repetitive step, the first repetitive step comprising: causing the rotating component to drive the power connector to rotate, causing the impact component to impact the rotated power connector, and detecting whether the power connector can work normally after the impact; In response to the power connector failing to work properly, the test is stopped; or, the second connector in the power connector has a plurality of pre-impact positions arranged along its circumference, and in response to the plurality of pre-impact positions all being impacted and detected, the test is stopped.

17. The testing method according to claim 15, wherein: The impact component is made to fall and impact the second connecting member in the power connector; and the rotating component drives the power connector to rotate; causing the impact assembly to impact the rotated second connecting member; Detecting whether the power connector can work normally after the collision includes: Repeat the second repetitive step, which includes: making the impact component impact the second connecting piece in the power connector, so that the rotating component drives the power connector to rotate; the second connecting piece has a plurality of pre-impact positions arranged along its circumference, and after all the plurality of pre-impact positions are impacted, detecting whether the power connector can work normally.

18. The testing method according to any one of claims 15 to 17, wherein: The impact assembly is made to impact the same position of the second connecting member for multiple times in a row.

19. The testing method according to any one of claims 15 to 17, wherein: The rotation angle of the power connector driven by the rotating assembly is less than or equal to 90°.

20. The testing method according to any one of claims 15 to 17, wherein: The impact assembly falls along the guide rail toward the bearing surface at a preset height, and the preset height is 0.05m-1m.

21. The testing method according to any one of claims 15 to 17, wherein: The impact assembly includes a counterweight; the impact assembly falls along the guide rail toward the bearing surface at a preset height, and the ratio of the mass of the counterweight to the preset height is 0.02kg / m to 100kg / m; and / or, the ratio of the mass of the counterweight to the impact distance is 1.4g / mm to 1250g / mm, and the impact distance is the distance between the connection point of the first connecting member and the second connecting member and the impacted position on the surface of the second connecting member.

22. A method for testing a power connector, characterized in that: The power connector is tested using the test device according to any one of claims 1 to 14; the second connector in the power connector has a plurality of pre-impact positions arranged along its circumference, and the plurality of pre-impact positions are respectively located in the same plurality of power connectors; The test method includes: placing a power connector above the carrier; Making the impact component impact the second connecting piece in the power connector to detect whether the power connector can work normally after the impact; Perform a third repetitive step, the third repetitive step comprising: replacing the power connector, causing the rotating component to drive the replaced power connector to rotate, causing the impact component to impact the rotated power connector, and detecting whether the power connector can work normally after the impact; until the pre-impact positions in the multiple power connectors are all impacted and detected, the test is stopped.

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