A reliability and durability testing device for the connection between a charging port and a vehicle body

Abstract

This utility model discloses a charging port to vehicle body connection reliability and durability testing device, including a gun head assembly comprising a gun head base, a simulated gun head, and a locking buckle. The simulated gun head is connected to the gun head base and extends forward from the gun head base to fit and insert into the charging port. The locking buckle is disposed on the gun head base or the simulated gun head and is used to lock the simulated gun head into the charging port after it is inserted. A loading mechanism includes a driving component and a force sensor. The output end of the driving component is connected to the gun head base and is used to apply a test load to the gun head base. The force sensor is disposed between the driving component and the gun head base. This utility model effectively simulates the force state of the charging port during the insertion and removal of the charging gun, and can better meet the requirements of the charging port to vehicle body connection reliability and durability testing.

Description

Technical Field

[0001] This utility model is used in the field of automotive testing, and in particular relates to a reliability and durability testing device for the connection between a charging port and the vehicle body. Background Technology

[0002] Due to limitations in battery technology, pure electric vehicles currently have a short driving range, short charging intervals, and require frequent charging throughout their lifespan. The plugging and unplugging of the charging gun during charging places high demands on the reliability of the connection between the charging port bracket and the vehicle body.

[0003] Existing technologies include durability testing devices for evaluating the reliability of car charging port brackets themselves. However, these devices are not suitable for verifying the reliability of the connection between the car charging port and the vehicle body. Therefore, a testing device for assessing the reliability of the connection between the car charging port and the vehicle body is urgently needed.

[0004] In summary, the problems existing in the relevant technologies urgently need to be solved. Utility Model Content

[0005] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a device for testing the reliability and durability of the connection between the charging port and the vehicle body.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A reliability and durability testing device for the connection between a charging port and a vehicle body includes:

[0008] The gun head assembly includes a gun head base, a simulated gun head, and a latch. The simulated gun head is connected to the gun head base and extends forward from the gun head base to be adapted to and inserted into the charging port. The latch is disposed on the gun head base or the simulated gun head and is used to engage with the charging port to lock the simulated gun head after it is inserted into the charging port.

[0009] The loading mechanism includes a drive component and a force sensor. The output end of the drive component is connected to the gun head seat for applying a test load to the gun head seat. The force sensor is disposed between the drive component and the gun head seat.

[0010] In some implementations, the simulated gun head includes a gun head and a connecting part. The gun head has a contoured cross-section adapted to the charging port. The front end of the gun head is provided with an electrode clearance hole. The connecting part is located at the rear end of the gun head. The gun head seat is detachably installed on the connecting part.

[0011] In some implementations, the simulated charging head includes both a fast charging simulated charging head and a slow charging simulated charging head, in combination with the above implementation methods.

[0012] In some implementations, the connecting part forms a radial flange at the tail of the gun head, and the latch includes a fastener fitted to the radial flange. The fastener extends forward from the connecting part to form a cantilever, and the front end of the cantilever is provided with a buckle that can cooperate with the charging port.

[0013] In some implementations, in conjunction with the above implementations, the radial flange is provided with an assembly groove extending in the front-rear direction, the bottom of the assembly groove is provided with a first bolt hole, the fastener is provided with a waist-shaped groove extending in the front-rear direction, and the fastener is assembled to the assembly groove by a bolt passing through the waist-shaped groove and connected to the first bolt hole.

[0014] In some implementations, the gun head base is provided with a rearwardly extending length adjustment arm, and the length adjustment arm is provided with a plurality of second bolt holes distributed along the length direction. The output end of the drive component is directly or indirectly connected to the length adjustment arm of the gun head base.

[0015] In some implementations, in conjunction with the above methods, the gun head assembly further includes an angle adjustment arm. The angle adjustment arm has multiple third bolt holes distributed along its length. The angle adjustment arm is mounted to the length adjustment arm by bolts located in the second and third bolt holes. The angle adjustment arm can adjust the installation angle on the length adjustment arm around the second bolt hole. The length adjustment arm has an angle connecting block with an arc-shaped groove that can be bolted to the angle adjustment arm. The output end of the drive component is directly or indirectly connected to the angle adjustment arm.

[0016] In some implementations, the angle adjusting arm includes a first adjusting arm and a second adjusting arm, the first adjusting arm and the second adjusting arm are arranged in parallel and have a gap, the first adjusting arm and the second adjusting arm are provided with third bolt holes that are distributed opposite each other, and the length adjusting arm is arranged at the gap.

[0017] In some implementations, in conjunction with the above implementations, the output end of the drive component is provided with a connector, which is located in the interval and connected to the third bolt hole by a bolt.

[0018] In some implementations, in conjunction with the above methods, the loading mechanism further includes a support, and the driving component is connected to the support.

[0019] One of the above technical solutions has at least one of the following advantages or beneficial effects: The technical solution of this utility model can be used to conduct load tests on a part of the vehicle body, namely the charging port, to perform durability or strength tests. Specifically, during the test, a simulated charging gun head is inserted into the charging port and locked in place by a latch. Then, a load is applied to the charging gun head assembly according to regulations by a drive component, and the load is fed back by a force sensor. This allows for further assessment of the structural state between the charging port and the vehicle body, thus completing a durability test of the reliability of the connection between the charging port and the vehicle body. This utility model effectively simulates the force state of the charging port when the charging gun is inserted and removed from the charging port, and can better meet the requirements of durability tests for the reliability of the connection between the charging port and the vehicle body.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the usage state of one embodiment of this utility model;

[0024] Figure 3 This is a schematic diagram simulating the state of the gun head being aligned with the charging port when using one embodiment of this utility model. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] In this utility model, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of this utility model, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0027] In this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number; "above," "below," "within," etc. are understood to include the stated number. In the description of this utility model, if "first" or "second" is used, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0028] In this utility model, unless otherwise explicitly defined, terms such as "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model based on the specific content of the technical solution.

[0029] in, Figure 1 The reference direction coordinate system of this utility model embodiment is given below, in conjunction with Figure 1 The embodiments of this utility model will be described in the directions shown.

[0030] See Figure 1 , Figure 2 , Figure 3 The present invention provides a reliability and durability testing device for the connection between a charging port and a vehicle body, including a gun head assembly 100 and a loading mechanism 200. The gun head assembly 100 is used to maintain the connection to the charging port 300 during the test. The gun head assembly 100 includes a gun head seat 101, a simulated gun head 102 and a latch 103. The simulated gun head 102 is connected to the gun head seat 101 and extends forward from the gun head seat 101 to be adapted to and inserted into the charging port 300. The latch 103 is disposed on the gun head seat 101 or the simulated gun head 102 and is used to lock the simulated gun head 102 in cooperation with the charging port 300 after it is inserted into the charging port 300.

[0031] The loading mechanism 200 is used to apply a loading force to the gun head assembly 100 during the test to simulate the stress state of the charging port 300 during normal use. The loading mechanism 200 includes a driving component 201 and a force sensor 202. The output end of the driving component 201 is connected to the gun head base 101 and is used to apply a test load to the gun head base 101. The force sensor 202 is disposed between the driving component 201 and the gun head base 101.

[0032] See Figure 1 , Figure 2 , Figure 3The technical solution of this utility model can be used to conduct load tests on a portion of the vehicle body, namely the charging port 300, to perform durability or strength tests. Specifically, during the test, a simulated gun head 102 is inserted into the charging port 300 and locked in place by a latch 103. Then, the drive component 201 applies a load to the gun head assembly 100 according to regulations, and the load is fed back by the force sensor 202. This allows for further assessment of the structural state between the charging port 300 and the vehicle body, thus completing a durability test of the reliability of the connection between the charging port 300 and the vehicle body. This utility model effectively simulates the stress state of the charging port 300 when the charging gun is inserted into or removed from the charging port 300, and can better meet the requirements of durability tests for the reliability of the connection between the charging port 300 and the vehicle body.

[0033] In some embodiments, see Figure 1 , Figure 3 The simulated charging gun head 102 adopts a contour-mimicking design that closely resembles the shape and structure of a real charging gun head. The simulated charging gun head 102 includes a gun head 104 and a connecting portion 105. The gun head 104 has a contour-mimicking cross-section adapted to the charging port 300. An electrode clearance hole 106 is provided at the front end of the gun head 104 to ensure that the simulated charging gun head 102 can be properly fitted and inserted into the charging port 300. The connecting portion 105 is located at the rear end of the gun head 104, and the gun head seat 101 is detachably mounted on the connecting portion 105. In this embodiment, the simulated charging gun head 102 can realistically simulate the interaction between the charging gun and the charging port 300 during normal use, thereby accurately reproducing the force exerted by the charging gun on the charging port 300. The detachable mounting of the gun head seat 101 on the connecting portion 105 allows for the replacement of different simulated charging gun heads 102 according to different types of charging ports 300, improving the versatility of the entire experimental device.

[0034] Among them, see Figure 1 , Figure 3 Since the charging port 300 on a typical vehicle body includes both a slow charging port and a fast charging port, in this embodiment, the simulated charging gun 102 includes a fast charging simulated charging gun 118 and a slow charging simulated charging gun 119. The fast charging simulated charging gun 118 can be inserted into the fast charging port during testing, and the slow charging simulated charging gun 119 can be inserted into the slow charging port 300 during testing. This better simulates the normal stress on the charging port 300 during normal use. Following a universal design approach, it can simulate the insertion of both fast and slow charging guns, adapting to different charging modes; the fast and slow charging guns are easily replaceable, suitable for subsequent vehicle development, reducing fixture costs and design time.

[0035] Further, see Figure 1 , Figure 3The connecting portion 105 forms a radial flange at the tail of the gun head 104. The latch 103 includes a fastener fitted to the radial flange. The fastener extends forward from the connecting portion 105 to form a cantilever. The front end of the cantilever is provided with a snap fastener 106 that can cooperate with the charging port 300. In this embodiment, the radial flange is used on the one hand to cooperate with the end of the charging port 300 when the simulated gun head 102 is inserted into the charging port 300 to achieve a limiting position. On the other hand, it also provides an installation position for the latch 103. In use, the gun head assembly 100 is aligned with the charging port 300 and inserted into the charging port 300. During this process, the snap fastener 106 at the front end of the fastener engages in the slot of the charging port 300, thereby achieving a fixed connection between the simulated gun head 102 and the charging port 300. This ensures that the simulated gun head 102 remains connected to the charging port 300 when the loading mechanism 200 applies a loading force, and effectively transmits the force between the charging port 300 and the vehicle body.

[0036] Further, see Figure 1 , Figure 3 The radial flange is provided with an assembly groove 107 extending in the front-to-back direction. The bottom of the assembly groove 107 is provided with a first bolt hole 108. The fastener is provided with a waist-shaped groove 109 extending in the front-to-back direction. The fastener is assembled into the assembly groove 107 by a bolt passing through the waist-shaped groove 109 and connected to the first bolt hole 108. In this embodiment, the fastener is a sheet with a certain thickness, which can elastically deform to allow the front end buckle 106 to engage with the slot of the charging port 300. The waist-shaped groove 109 allows for flexible adjustment of the length of the fastener's extension, thus better adapting to the slot of the charging port 300 and ensuring the stability of the connection between the simulated gun head 102 and the charging port 300 during testing.

[0037] In some embodiments, see Figure 1 , Figure 3 The gun head holder 101 is provided with a rearwardly extending length adjustment arm 110. The length adjustment arm 110 has multiple second bolt holes 111 distributed along its length. The output end of the drive component 201 is directly or indirectly connected to the length adjustment arm 110 of the gun head holder 101. In this embodiment, different second bolt holes 111 can be selected and installed on the length adjustment arm 110 according to the test requirements, thereby adjusting the required length. Precise adjustment based on the test scenario ensures compatibility with test standards and improves the accuracy and reliability of the results.

[0038] Further, see Figure 1 , Figure 3The gun head assembly 100 also includes an angle adjustment arm 112. The angle adjustment arm 112 has multiple third bolt holes 113 distributed along its length. The angle adjustment arm 112 is mounted to the length adjustment arm 110 via bolts located in the second bolt holes 111 and the third bolt holes 113. The angle adjustment arm 112 can adjust its installation angle on the length adjustment arm 110 around the second bolt hole 111. The length adjustment arm 110 has an angle connecting block 114, which has an arc-shaped groove 115 that can be bolted to the angle adjustment arm 112. The output end of the drive component 201 is directly or indirectly connected to the angle adjustment arm 112. In this embodiment, by adjusting the angle adjustment arm 112 at its installation position on the length adjustment arm 110, and further by adjusting the angle at its installation position in the arc-shaped groove 115, precise adjustments can be made according to the test scenario, ensuring compatibility with test standards and improving the accuracy and reliability of the results.

[0039] In some embodiments, see Figure 1 , Figure 3 The angle adjustment arm 112 includes a first adjustment arm 116 and a second adjustment arm 117. The first adjustment arm 116 and the second adjustment arm 117 are arranged in parallel with a gap between them. The first adjustment arm 116 and the second adjustment arm 117 are provided with third bolt holes 113 that are distributed opposite each other. The length adjustment arm 110 is disposed at the gap. In this embodiment, the angle adjustment arm 112 adopts a symmetrical structure that is assembled from both sides to the length adjustment arm 110, ensuring that the force of the driving component 201 can be transmitted to the simulated gun head 102 more stably, thereby improving the stability of the device.

[0040] In some embodiments of this utility model, the length adjustment arm 110 and the angle adjustment arm 112 can be made of high-strength aluminum to achieve lightweighting, replace cast iron material, reduce the weight of the clamps, reduce the difficulty of handling and installation, help the equipment to be laid out in a lightweight manner, and improve operating efficiency.

[0041] See Figure 1 , Figure 3 The output end of the drive component 201 is provided with a connector 203, which is located at a gap and connected to the third bolt hole 113 by bolts. In this embodiment, the connector 203 enables quick connection between the gun head assembly 100 and the loading mechanism 200, resulting in a simple and reliable structure.

[0042] In some embodiments, see Figure 1 , Figure 2 The loading mechanism 200 also includes a bracket 204, to which the drive component 201 is connected. The bracket 204 is mounted on the ground and provides stable support for the drive component 201, which can be a cylinder or hydraulic cylinder, etc. The entire device can be installed on the side of a vehicle for convenient use.

[0043] In the description of this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A charging port and vehicle body connection reliability endurance test device, characterized by, include: The gun head assembly includes a gun head base, a simulated gun head, and a latch. The simulated gun head is connected to the gun head base and extends forward from the gun head base to be adapted to and inserted into the charging port. The latch is disposed on the gun head base or the simulated gun head and is used to engage with the charging port to lock the simulated gun head after it is inserted into the charging port. The loading mechanism includes a drive component and a force sensor. The output end of the drive component is connected to the gun head seat for applying a test load to the gun head seat. The force sensor is disposed between the drive component and the gun head seat.

2. The charging port and vehicle body connection reliability and durability testing device according to claim 1, characterized in that, The simulated gun head includes a gun head and a connecting part. The gun head has a contoured cross-section adapted to the charging port. The front end of the gun head is provided with an electrode clearance hole. The connecting part is located at the rear end of the gun head. The gun head seat is detachably installed on the connecting part.

3. The charging port and vehicle body connection reliability and durability testing device according to claim 2, characterized in that, The simulated charging head includes a fast charging simulated charging head and a slow charging simulated charging head.

4. The charging port and vehicle body connection reliability and durability testing device according to claim 2, characterized in that, The connecting part forms a radial flange at the tail of the gun head, and the latch includes a fastener fitted to the radial flange. The fastener extends forward from the connecting part to form a cantilever, and the front end of the cantilever is provided with a buckle that can cooperate with the charging port.

5. The charging port and vehicle body connection reliability and durability testing device according to claim 4, characterized in that, The radial flange is provided with an assembly groove extending in the front-to-back direction. The bottom of the assembly groove is provided with a first bolt hole. The fastener is provided with a waist-shaped groove extending in the front-to-back direction. The fastener is assembled to the assembly groove by a bolt passing through the waist-shaped groove and connected to the first bolt hole.

6. The charging port and vehicle body connection reliability and durability testing device according to claim 2, characterized in that, The gun head base is provided with a rearwardly extending length adjustment arm, and the length adjustment arm is provided with a plurality of second bolt holes distributed along the length direction. The output end of the drive component is directly or indirectly connected to the length adjustment arm of the gun head base.

7. The charging port and vehicle body connection reliability and durability testing device according to claim 6, characterized in that, The gun head assembly also includes an angle adjustment arm, which has multiple third bolt holes distributed along its length. The angle adjustment arm is mounted to the length adjustment arm by bolts located in the second and third bolt holes. The angle adjustment arm can adjust the installation angle on the length adjustment arm around the second bolt holes. The length adjustment arm is provided with an angle connecting block, which has an arc-shaped groove that can be bolted to the angle adjustment arm. The output end of the drive component is directly or indirectly connected to the angle adjustment arm.

8. The charging port and vehicle body connection reliability and durability testing device according to claim 7, characterized in that, The angle adjustment arm includes a first adjustment arm and a second adjustment arm, which are arranged in parallel with a gap between them. The first adjustment arm and the second adjustment arm are provided with third bolt holes that are distributed opposite each other. The length adjustment arm is located at the gap.

9. The charging port and vehicle body connection reliability and durability testing device according to claim 8, characterized in that, The output end of the drive component is provided with a connector, which is located in the interval and connected to the third bolt hole by a bolt.

10. The charging port and vehicle body connection reliability and durability testing device according to claim 1, characterized in that, The loading mechanism also includes a bracket, and the driving component is connected to the bracket.

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