Charging gun misplacement testing device

Abstract

The utility model provides a charging gun misplacement testing device, which belongs to the technical field of testing equipment and comprises a base provided with a simulation hole allowing a charging gun to be inserted therein; the clamping mechanism comprises two linear driving elements, the two linear driving elements are installed on the two sides of the base, the opposite ends of the two linear driving elements are connected with flexible clamps, a clamping space is formed between the two flexible clamps when the two flexible clamps are folded, and the clamping space and the simulation hole are arranged in a front-back corresponding mode; the opposite faces of the two flexible clamps are each of a self-adaptive structure capable of automatically deforming according to the surface contour of an object to be clamped. The beneficial effects of the utility model are that the special equipment used for the charging gun misplacement test is provided, the two linear driving elements can clamp the charging gun to be tested through the flexible clamp during the test, the flexible clamp can be suitable for the charging guns of different specifications, the clamp does not need to be replaced when the charging guns of different specifications to be tested are replaced, and the test efficiency is improved. Therefore, the operation is very flexible and convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of testing equipment and relates to a charging gun misalignment testing device. Background Art

[0002] The charging gun is the main way for new energy vehicles to obtain electricity. It is similar to the refueling gun of traditional fuel vehicles, but more environmentally friendly and convenient. Users can charge their vehicles through home sockets, public charging piles or portable charging devices.

[0003] The safety performance test of the charging gun includes the misalignment test, which is also called the dislocation test. It is an important part of the safety and reliability test of electric vehicle charging equipment. This test is designed to simulate the situation during the charging process when the power cord is affected by external forces such as strong winds, pedestrians, vehicles, etc., causing shaking, thereby exerting a stress on the charging gun, causing the connection between the charging gun and the car charging socket to be virtual or displaced, thereby overheating, causing fire, and the risk of car spontaneous combustion.

[0004] Currently, when performing a misalignment test on a charging gun, it is necessary to operate a fixture to clamp the charging gun to simulate the state of the charging gun when it is inserted into the vehicle's charging port. However, charging guns of different specifications have different outer contours, so the corresponding fixtures are also different. This results in the need to replace the corresponding fixture every time a charging gun of different specifications or types is tested, which has the defects of poor flexibility, cumbersome operation, and low detection efficiency during the detection operation. Utility Model Content

[0005] The utility model aims to solve the above problems in the prior art and proposes a charging gun misalignment test device.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a charging gun misalignment test device, comprising:

[0007] A base, wherein the base is provided with a simulation hole for inserting a charging gun;

[0008] A clamping mechanism, wherein the clamping mechanism comprises two linear drive elements, the two linear drive elements are mounted on both sides of the base, and the opposite ends of the two linear drive elements are connected with flexible clamps, the two flexible clamps are arranged correspondingly on the left and right, the two linear drive elements can respectively drive the two flexible clamps to close or separate, and a clamping space is formed between the two flexible clamps when the two flexible clamps are closed, and the clamping space is arranged correspondingly to the front and back of the simulation hole;

[0009] The opposing surfaces of the two flexible clamps are both configured as adaptive structures that can deform themselves according to the surface contour of the object to be clamped.

[0010] Preferably, the flexible clamp includes a clamp seat and a plurality of ejector pins, wherein the ejector pins are telescopically connected to the clamp seat, a portion of the ejector pins is inserted into the clamp seat and another portion protrudes from a surface of the clamp seat, and the ejector pins are densely arranged.

[0011] Preferably, the fixture seat is provided with a plurality of mounting holes, each of the ejector pins is arranged in one-to-one correspondence with each of the mounting holes, and a portion of the ejector pin can be telescopically inserted into the mounting hole.

[0012] Preferably, an elastic member or a gas supporting medium is provided in the mounting hole.

[0013] Preferably, it further comprises a gantry, wherein the gantry comprises a crossbeam and two side columns, two ends of the crossbeam are respectively connected to the two side columns, and the crossbeam and the two side columns are both provided with reversing wheels.

[0014] Preferably, it further comprises a rope which can be mounted on the reversing wheel, one end of the rope is a connecting piece for connecting with the object to be clamped, and the other end of the rope is provided with a counterweight.

[0015] Preferably, it also includes a workbench, and the base and the gantry are both installed on the workbench.

[0016] Preferably, the base is connected to the workbench in a liftable manner via a lifting rod, and the workbench is provided with a lifting drive element, and the lifting drive element is connected to the base and can drive the base to lift and lower.

[0017] Preferably, the linear drive element is configured as a linear motor or a pneumatic cylinder or a hydraulic cylinder, and the two linear drive elements are configured to move synchronously.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. A special device for charging gun misalignment test is provided. During the test, two linear drive elements can clamp the charging gun to be tested through a flexible clamp, and the flexible clamp can be applied to charging guns of different specifications. When replacing charging guns of different specifications to be tested, there is no need to replace the clamp, so the operation is very flexible and convenient.

[0020] 2. The ejector pins on the surface of the fixture seat are in contact with the surface of the charging gun, and each ejector pin retracts to different degrees according to the contour of the charging gun surface, so that each ejector pin on the surface of the fixture seat forms a concave surface that matches the contour of the charging gun surface. At this time, the flexible fixture can firmly clamp the charging gun. Regardless of the specific shape of the charging gun, it can form an effective clamp to ensure the versatility and accuracy of the test.

[0021] 3. The elastic part can support the ejector pin and provide the necessary restoring force for the ejector pin, so that the ejector pin can be appropriately pressed and fit the contour after contacting the surface of the charging gun. At the same time, it can quickly return to its original position after the charging gun is removed, ready for the next test object. This design improves the tightness of the clamping.

[0022] 4. The combination of the gantry's reversing wheel system and the rope counterweight can not only flexibly simulate external forces in various directions, but also comprehensively test the safety performance of the charging gun under various potential misalignment situations without losing authenticity, ensuring the comprehensiveness and accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an isometric view of the charging gun misalignment test device of the present utility model.

[0024] Figure 2 It is a side view of the charging gun misalignment test device of the present utility model.

[0025] Figure 3 It is a front view of the charging gun misalignment testing device of the present utility model.

[0026] Figure 4 It is a structural schematic diagram of the clamping mechanism of the utility model.

[0027] Figure 5 It is a half-section schematic diagram of the clamping mechanism of the first embodiment of the utility model.

[0028] In the figure, 100, base; 110, simulation hole; 200, linear drive element; 300, flexible clamp; 310, clamp seat; 311, mounting hole; 312, elastic member; 320, ejector pin; 400, gantry; 410, crossbeam; 420, side column; 430, reversing wheel; 500, workbench; 510, lifting drive element. DETAILED DESCRIPTION

[0029] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0030] like Figure 1-5As shown, a charging gun misalignment test device comprises: a base 100, the base 100 is provided with a simulation hole 110 for inserting the charging gun; a clamping mechanism, the clamping mechanism comprises two linear drive elements 200, the two linear drive elements 200 are installed on both sides of the base 100, and the opposite ends of the two linear drive elements 200 are connected with flexible clamps 300, the two flexible clamps 300 are arranged correspondingly on the left and right, the two linear drive elements 200 can respectively drive the two flexible clamps 300 to close or separate, and a clamping space is formed between the two flexible clamps 300 when the two flexible clamps 300 are closed, and the clamping space is arranged correspondingly to the simulation hole 110 in front and back; the opposite surfaces of the two flexible clamps 300 are arranged as adaptive structures that can deform according to the surface contour of the object to be clamped.

[0031] The base 100 is the basic part of the entire test device. The base 100 is provided with a simulation hole 110. The simulation hole 110 is used to receive the front end of the charging gun to simulate the connection state between the actual charging gun and the charging interface of the electric vehicle; the linear drive element 200 can perform linear drive work, so that the two flexible clamps 300 can be closed or separated. When the two flexible clamps 300 are closed, they can clamp the charging gun to simulate the state of the charging gun when charging. The flexible clamp 300 is also called a universal clamp, which belongs to the existing clamp or positioning element, so it will not be repeated here. The flexible clamp 300 adopts an adaptive structural design, and its surface can automatically adjust its shape according to the contour of the clamped charging gun, so as to be compatible with charging guns of different sizes and shapes, without the need to frequently replace the clamp, thereby improving the flexibility and efficiency of the test. In addition, the device also includes matching detection elements and corresponding circuits, which will not be repeated here.

[0032] Preferably, the linear drive element 200 is configured as a linear motor or a cylinder or a hydraulic cylinder, and the two linear drive elements 200 are configured to move synchronously, which can greatly reduce the difficulty of clamping, achieve the purpose of automated clamping, and improve the efficiency of testing.

[0033] This device uses an adaptive flexible fixture 300 to solve the problem of frequent fixture replacement due to the various specifications of charging guns in traditional testing, making the test operation simpler and faster, and significantly improving the test efficiency. At the same time, the two linear drive elements 200 are used to automatically clamp or release the charging gun, achieving the effect of automatic clamping and greatly improving work efficiency.

[0034] Based on the above embodiment, the flexible clamp 300 includes a clamp seat 310 and a plurality of ejector pins 320. The ejector pins 320 are telescopically connected to the clamp seat 310. A portion of the ejector pins 320 is inserted into the clamp seat 310 and another portion protrudes from the surface of the clamp seat 310. The ejector pins 320 are densely arranged.

[0035] The flexible clamp 300 is actually an existing clamp or positioning element, and one side of the clamp has densely arranged ejector pins 320. These ejector pins 320 are in an extended state in the initial state, that is, only a small part of the ejector pins 320 are located in the clamp seat 310, and most of them protrude from the surface of the clamp seat 310. The ejector pins 320 are designed to be retractable. Such a layout enables the flexible clamp 300 to closely fit the surface contours of charging guns of different shapes and sizes. During the test, the two flexible clamps 300 are closed by the force of the linear drive element 200, and the ejector pins 320 on the surface of the clamp seat 310 contact the surface of the charging gun, and each ejector pin 320 retracts to a different extent according to the contour shape of the surface of the charging gun, so that each ejector pin 320 on the surface of the clamp seat 310 forms a concave surface that matches the contour of the surface of the charging gun. At this time, the flexible clamp 300 can firmly clamp the charging gun, and no matter what the specific form of the charging gun is, it can form an effective clamping to ensure the versatility and accuracy of the test. Due to the retractability of the ejector pin 320, even if the contour of the charging gun changes, the ejector pin 320 can adapt to these changes through slight adjustments, thereby avoiding the limitations of traditional fixed-shape fixtures and improving the flexibility and applicability of the test device.

[0036] On the basis of the above embodiment, the fixture seat 310 is provided with a plurality of mounting holes 311 , each ejector pin 320 is provided in one-to-one correspondence with each mounting hole 311 , and a portion of the ejector pin 320 can be telescopically inserted into the mounting hole 311 .

[0037] A portion of the ejector pin 320 can be freely and telescopically inserted into the corresponding mounting hole 311. This design gives the ejector pin 320 the ability to dynamically adjust so that it can adapt to the surfaces of charging guns of different shapes. The mounting hole 311 has a corresponding structure (elastic member 312, gas and liquid medium) to form a support, so that the ejector pin 320 has the ability to protrude outward, thereby achieving precise positioning and control of the position of the ejector pin 320. This helps each ejector pin 320 to adapt to the size and contour of different charging guns during the test process.

[0038] On the basis of the above embodiment, an elastic member 312 or a gas supporting medium is disposed in the mounting hole 311 .

[0039] In the first embodiment, an elastic member 312 is provided in each mounting hole 311. The elastic member 312 is in contact with the ejector pin 320 and applies an ejection force to the ejector pin 320. This design enables the elastic member 312 to support the ejector pin 320 and provide the necessary restoring force for the ejector pin 320, so that the ejector pin 320 can be appropriately compressed and fit the contour after contacting the surface of the charging gun. At the same time, the ejector pin 320 can quickly return to its original position after the charging gun is removed, ready to meet the next test object. This design improves the tightness of the clamping.

[0040] In the second embodiment, the ejector pin 320 is supported by the principle of the cylinder. The ejector pin 320 is similar to the piston rod structure. In actual use, the air valve switch is first turned on, and each ejector pin 320 on the flexible clamp 300 fits the contour of the surface of the charging gun. Each ejector pin 320 adaptively retracts according to the contour shape of the surface of the charging gun. Then, the air valve switch is turned off and the charging gun is removed, so that each ejector pin 320 remains in the retracted position at this time, that is, the ejector pin 320 is supported by the gas medium in the mounting hole 311, so that the ejector pin 320 cannot continue to retract inward, so that the flexible clamp 300 forms a concave shape matching the contour of the charging gun; when it is necessary to clamp charging guns of different specifications, the air valve switch is turned on, and each ejector pin 320 is ejected outward and reset.

[0041] like Figure 1 As shown, based on the above embodiment, a gantry 400 is further included. The gantry 400 includes a crossbeam 410 and two side columns 420. Both ends of the crossbeam 410 are respectively connected to the two side columns 420. The crossbeam 410 and the two side columns 420 are both provided with reversing wheels 430.

[0042] On the basis of the above embodiment, it also includes a rope that can be mounted on the reversing wheel 430, one end of the rope is a connector for connecting to the object to be clamped, and the other end of the rope is provided with a counterweight.

[0043] In actual charging guns, thick cables are connected, so when the charging gun is charging, it is continuously pulled by the gravity of the cable. This pulling force applied to the charging gun can easily cause a false connection with the charging socket. Therefore, this device needs to simulate the state of the charging gun when it is subjected to pulling forces in different directions to be closer to actual usage.

[0044] During the test, the charging gun is clamped by the clamping mechanism, and then the connecting piece at one end of the rope is fixed to the charging gun, and the gravity pulling effect of the cable is simulated by extending and retracting the counterweight at the other end.

[0045] Each reversing wheel 430 on the gantry 400 needs to be used in conjunction with a rope. Since the gravity of the counterweight is downward, if a pulling force in the upward, left, or right direction is required, the rope needs to be used in conjunction with the corresponding reversing wheel 430 to form a corresponding pulling force. If you need to simulate the effect of pulling downward, directly connect the rope to the charging gun; if you need to simulate the effect of pulling on both sides, you can let the rope pass through the reversing wheel 430 on the side column 420; if you need to simulate the effect of pulling upward, you can let the rope pass through the reversing wheel 430 on the crossbeam 410. The combination of the reversing wheel 430 system of the gantry 400 and the rope counterweight can not only flexibly simulate the external force in various directions, but also comprehensively test the safety performance of the charging gun in various potential misalignment situations without losing authenticity, ensuring the comprehensiveness and accuracy of the test.

[0046] like Figure 1-3 As shown, on the basis of the above embodiment, a workbench 500 is further included, and the base 100 and the gantry 400 are all installed on the workbench 500 .

[0047] On the basis of the above embodiment, the base 100 is connected to the workbench 500 via a lifting rod so as to be liftable. The workbench 500 is provided with a lifting driving element 510 . The lifting driving element 510 is connected to the base 100 and can drive the base 100 to be lifted and lowered.

[0048] The lifting function of the base 100 enables the test device to adapt to the simulation of charging gun interfaces at different heights. There is no need to adjust the height of the test object, but to match it directly by adjusting the base 100, which improves the versatility and flexibility of the test. The operator can easily adjust the height of the base 100 through the control panel or manual buttons, without manually moving heavy objects or adjusting other fixtures, which reduces labor intensity and improves operating efficiency.

[0049] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0050] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A charging gun misalignment test device, characterized in that: include: A base (100), wherein the base (100) is provided with a simulation hole (110) for inserting a charging gun; A clamping mechanism, wherein the clamping mechanism comprises two linear drive elements (200), the two linear drive elements (200) are mounted on both sides of the base (100), and opposite ends of the two linear drive elements (200) are connected to flexible clamps (300), the two flexible clamps (300) are arranged correspondingly on the left and right, the two linear drive elements (200) can respectively drive the two flexible clamps (300) to close or separate, and a clamping space is formed between the two flexible clamps (300) when the two flexible clamps (300) are closed, and the clamping space is arranged correspondingly to the simulation hole (110) in front and back; The opposing surfaces of the two flexible clamps (300) are both configured as adaptive structures that can deform themselves according to the surface contour of the object to be clamped.

2. A charging gun misalignment test device as claimed in claim 1, characterized in that: The flexible clamp (300) comprises a clamp seat (310) and a plurality of ejector pins (320), wherein the ejector pins (320) are telescopically connected to the clamp seat (310), a portion of the ejector pins (320) is inserted into the clamp seat (310) and another portion protrudes from the surface of the clamp seat (310), and the ejector pins (320) are densely arranged.

3. A charging gun misalignment test device as claimed in claim 2, characterized in that: The clamp seat (310) is provided with a plurality of mounting holes (311), each of the ejector pins (320) is arranged in one-to-one correspondence with each of the mounting holes (311), and a portion of the ejector pin (320) can be telescopically inserted into the mounting hole (311).

4. A charging gun misalignment test device as claimed in claim 3, characterized in that: An elastic member (312) or a gas supporting medium is arranged in the mounting hole (311).

5. A charging gun misalignment test device as claimed in claim 1, characterized in that: The invention also comprises a gantry (400), wherein the gantry (400) comprises a crossbeam (410) and two side columns (420), two ends of the crossbeam (410) are respectively connected to the two side columns (420), and the crossbeam (410) and the two side columns (420) are both provided with reversing wheels (430).

6. A charging gun misalignment test device as claimed in claim 5, characterized in that: It also includes a rope that can be mounted on the reversing wheel (430), one end of the rope is a connecting piece used to connect to the object to be clamped, and the other end of the rope is provided with a counterweight.

7. A charging gun misalignment test device as claimed in claim 5, characterized in that: It also includes a workbench (500), and the base (100) and the gantry (400) are both installed on the workbench (500).

8. A charging gun misalignment test device as claimed in claim 7, characterized in that: The base (100) is connected to the workbench (500) via a lifting rod so as to be liftable. The workbench (500) is provided with a lifting drive element (510). The lifting drive element (510) is connected to the base (100) and can drive the base (100) to be lifted or lowered.

9. A charging gun misalignment test device as claimed in claim 1, characterized in that: The linear drive element (200) is configured as a linear motor or a pneumatic cylinder or a hydraulic cylinder, and the two linear drive elements (200) are configured to move synchronously.

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