Electric automobile potential detection plug and test equipment

Abstract

The utility model discloses an electric automobile potential detection plug and test equipment, the electric automobile potential detection plug comprises a plug main body and a limiting part, and the plug main body is used for being plugged with a single jack of a charging port; and the limiting part is formed on the circumferential surface of the plug main body, and forms a concave-convex structure with a plum blossom-shaped radial section around the circumferential direction of the plug main body, so as to limit the plug main body on the charging port. According to the utility model, the plug main body can be inserted into a single jack for testing, and the position of the plug main body is limited through the limiting part, so that the plug main body does not generate structural interference in the detection process, and the test of potential balance between shells can be better completed.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power testing, in particular to an electric vehicle potential detection plug and testing equipment. Background Art

[0002] Currently, the potential equalization test between the shells of electric vehicles is carried out by simultaneously inserting a DC charging detection probe and an AC charging detection probe into the DC charging socket and the AC charging socket of the electric vehicle, and measuring the conduction resistance between the PE of the DC charging socket and the PE of the AC charging socket. However, for some electric vehicles, since the DC charging port and the AC charging port are relatively close, if the DC charging detection probe and the AC charging detection probe are simultaneously inserted into the charging socket for detection, structural interference will occur, making it impossible to test the potential equalization between the shells. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, one purpose of the present invention is to provide an electric vehicle potential detection plug, comprising:

[0004] The plug body is used to connect with the single socket of the charging port;

[0005] The limiting portion is formed on the circumferential surface of the plug body and is configured around the circumferential direction of the plug body to form a concave-convex structure with a plum blossom-shaped radial cross section, so as to limit the plug body to the charging port.

[0006] Preferably, the limiting portion includes a first protruding portion and a second protruding portion, and the width of the first protruding portion is smaller than the width of the second protruding portion.

[0007] Preferably, the first protrusion and the second protrusion are connected in sequence to form a plurality of arc-shaped grooves, and the charging port is engaged with the plurality of arc-shaped grooves.

[0008] Preferably, there are at least five first protrusions and at least one second protrusion.

[0009] Preferably, at least four first arc-shaped grooves are formed between the first protrusions, and at least two second arc-shaped grooves are formed between the first protrusion and the second protrusion.

[0010] Preferably, the curvature of the first arc-shaped groove is greater than the curvature of the second arc-shaped groove.

[0011] Preferably, the surfaces of the first protrusion and the second protrusion are flat or curved.

[0012] Preferably, a pin is provided in the plug body, and the pin extends along the axial direction of the plug body and is located in the limiting portion.

[0013] Another object of the present invention is to provide a testing device comprising the electric vehicle potential detection plug as described above.

[0014] The above solution of the utility model includes at least the following beneficial effects:

[0015] The electric vehicle potential detection plug provided by the utility model can insert the plug body into a single socket for testing, and limit the position of the plug body by the limit part, so that during the detection process, the plug body will not produce structural interference, and the potential balance test between the shells can be better completed.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 This is a structural diagram of an electric vehicle potential detection plug provided in an embodiment of the present utility model;

[0019] Figure 2 This is a structural diagram of an electric vehicle potential detection plug provided in an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the use status of the electric vehicle potential detection plug provided in the embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of another usage state of the electric vehicle potential detection plug provided in an embodiment of the utility model;

[0022] Figure 5 It is a structural diagram of the testing equipment provided in an embodiment of the present utility model;

[0023] Description of Figure Numbers:

[0024] 10. Plug body; 20. Limiting portion; 201. First protrusion; 202. Second protrusion; 203. First arc-shaped groove; 204. Second arc-shaped groove; 30. Pin; 40. Jack; 50. Testing equipment.

[0025] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0029] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0030] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0031] The electric vehicle potential detection plug and testing equipment according to the embodiment of the utility model are described in detail below with reference to the accompanying drawings.

[0032] Reference Figures 1 to 4 As shown, the electric vehicle potential detection plug provided in the embodiment of the present invention includes: a plug body 10 and a limiting portion 20. The plug body 10 is used to be plugged into a single jack 40 of the charging port; the limiting portion 20 is formed on the circumferential surface of the plug body 10 and is constructed around the circumferential direction of the plug body 10 to form a concave-convex structure with a plum blossom-shaped radial cross-section, so as to limit the plug body 10 to the charging port.

[0033] Among them, the charging port can be the charging port of any electric vehicle. Since the charging port of an electric vehicle contains multiple different jacks 40, such as a DC jack 40 and an AC jack 40, by setting the plug body 10 to be plugged into a single jack 40, it is possible to test the potential equalization of electric vehicles with any type of charging port arrangement, avoiding interference caused by different jacks 40 arranged in different electric vehicles.

[0034] The electric vehicle potential detection plug provided by the present invention can insert the plug body 10 into a single socket 40 for testing, and limit the position of the plug body 10 by the limiting portion 20, so that during the detection process, the plug body 10 will not cause structural interference, and the potential balance test between the shells can be better completed.

[0035] Specifically, the limiting portion 20 includes a first protrusion 201 and a second protrusion 202. The width of the first protrusion 201 is smaller than the width of the second protrusion 202. There are at least five first protrusions 201 and at least one second protrusion 202. When the plug body 10 is plugged into a single receptacle 40, the limiting portion 20 can be adapted to limit the position within the charging port, making it difficult to insert incorrectly and ensuring accurate insertion into the corresponding receptacle 40.

[0036] Furthermore, the first protrusion 201 and the second protrusion 202 are sequentially connected to form a plurality of arcuate grooves, and the charging port and the plurality of arcuate grooves are interlocked. The arcuate grooves can have the same curvature, so that the plurality of sockets 40 in the charging port can be respectively embedded in the arcuate grooves. When the plug body 10 is plugged into a single socket 40, the other sockets 40 can be interlocked with the arcuate grooves. The first protrusion 201 and the second protrusion 202 can restrict the position of the plug body 10, ensuring more stable plugging of the plug body 10.

[0037] As a preferred embodiment, at least four first arcuate grooves 203 are formed between the first protrusions 201, and at least two second arcuate grooves 204 are formed between the first protrusions 201 and the second protrusions 202. The curvature of the first arcuate grooves 203 is greater than that of the second arcuate grooves 204. The first arcuate grooves 203 can be adapted to fit into the receptacles 40 with larger outer circumferences, while the second arcuate grooves 204 can be adapted to fit into the receptacles 40 with smaller outer circumferences. This allows the plug body 10 to be accurately plugged into the corresponding receptacles 40 during a plug-in test to avoid incorrect insertion, making the test operation more convenient. Optionally, the surfaces of the first protrusions 201 and the second protrusions 202 are flat or curved.

[0038] Specifically, the plug body 10 includes a pin 30 extending axially of the plug body 10 and positioned within the stopper 20. The plug body 10 may include only one pin 30, allowing it to be mated with a single receptacle 40. This simplifies mating and prevents interference caused by misplaced receptacles 40.

[0039] Reference Figure 5 As shown, the test device 50 provided in the embodiment of the present invention includes the electric vehicle potential detection plug as described above. Among them, electric vehicles usually have an AC charging port and a DC charging port. The test device 50 can adopt the above-mentioned potential detection plug design to connect plug A and plug B, for example Figure 5As shown in , when testing with the test equipment 50, when the arrangement of the two charging ports allows the DC charging detection probe and the AC charging detection probe to be inserted into the DC charging and AC ports at the same time, then when testing potential equalization, the DC charging detection probe can be directly inserted into the DC charging port, and the AC charging detection probe can be inserted into the AC charging port, and the resistance between the PE port of the DC charging port and the PE port of the AC charging port can be measured by the test equipment 50; optionally, when the arrangement of the two charging ports cannot allow the DC charging detection probe and the AC charging detection probe to be inserted into the DC charging and AC ports at the same time, then when testing potential equalization, plug A can be directly inserted into the PE port of the DC charging port, and plug B can be inserted into the PE port of the AC charging port, and then the test equipment 50 can measure the resistance between the PE port of the DC charging port and the PE port of the AC charging port.

[0040] The test device 50 provided by the present invention adopts the above-mentioned potential detection plug. During the test process, the plug body 10 can be inserted into a single jack 40 for testing, and the position of the plug body 10 is limited by the limit portion 20. Therefore, during the test process, the plug body 10 will not cause structural interference, and the potential balance test between the shells can be better completed.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0042] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An electric vehicle potential detection plug, characterized in that: include: The plug body is used to connect with the single socket of the charging port; The limiting portion is formed on the circumferential surface of the plug body and is configured around the circumferential direction of the plug body to form a concave-convex structure with a plum blossom-shaped radial cross section, so as to limit the plug body to the charging port.

2. The electric vehicle potential detection plug according to claim 1, characterized in that: The limiting portion includes a first protruding portion and a second protruding portion, and the width of the first protruding portion is smaller than the width of the second protruding portion.

3. The electric vehicle potential detection plug according to claim 2, characterized in that: The first protrusion and the second protrusion are connected in sequence to form a plurality of arc-shaped grooves, and the charging port is engaged with the plurality of arc-shaped grooves.

4. The electric vehicle potential detection plug according to claim 2, characterized in that: The number of the first protrusions is at least five, and the number of the second protrusions is at least one.

5. The electric vehicle potential detection plug according to claim 4, characterized in that: At least four first arc-shaped grooves are formed between the first protrusions, and at least two second arc-shaped grooves are formed between the first protrusion and the second protrusion.

6. The electric vehicle potential detection plug according to claim 5, characterized in that: The curvature of the first arc-shaped groove is greater than the curvature of the second arc-shaped groove.

7. The electric vehicle potential detection plug according to claim 2, characterized in that: The surfaces of the first protrusion and the second protrusion are flat or curved.

8. The electric vehicle potential detection plug according to claim 1, characterized in that: The plug body has an inserting pin therein, the inserting pin extends along the axial direction of the plug body and is located in the limiting portion.

9. A testing device, characterized in that: It comprises the electric vehicle potential detection plug as described in any one of claims 1 to 8.

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