Device for detecting direct current charging circuit of pure electric vehicle

Abstract

The utility model relates to the technical field of new energy automobiles, in particular to a device for detecting a direct current charging circuit of a pure electric vehicle, which comprises a detection connecting piece, a plug A end and a plug B end are integrally connected onto the detection connecting piece, the detection connecting piece is connected with a vehicle direct current charging port through the plug A end, and the plug B end is connected to a direct current charging gun. The detection connecting piece is connected in series between the vehicle alternating current charging port and the direct current charging gun, and a safety cover plate and a vehicle charging port point position detection head are clamped in the detection connecting piece. The device is connected in series between a direct current charging port and a charging gun, and a detection terminal of a detection port in a vehicle charging port point detection head is measured by using a universal meter and other detection tools, so that the condition of a direct current charging port circuit can be intuitively measured, the fault of a charging circuit or a component can be accurately judged, the one-time repair rate is improved, and the detection efficiency is improved. The working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy automobile technical field especially relates to a device for detecting pure electric vehicle direct current charging circuit. BACKGROUND

[0002] The energy automobile refers to the unconventional vehicle fuel as power source, and most of the existing market refers to the automobile mainly driven by electric power to achieve the purpose of energy saving and emission reduction.

[0003] At present, the new energy vehicle direct current charging fault is checked blindly in the automobile repair factory, and the following technical problems exist: for detecting the direct current charging port line, only the individual terminal of the charging port and the charging gun can be measured in the disconnected mode, the charging gun is not connected to the charging port, the charging circuit is not enabled, the voltage is not output, the actual working voltage cannot be measured, the line or component cannot be judged, and the replacement method is mostly adopted, the efficiency is low, and the fault judgment accuracy is low. And detecting the direct current charging port line exists high voltage, and is very hidden, cannot break the line as the low voltage line, and measures back to stab. SUMMARY

[0004] The main purpose of the utility model is to overcome the defects in the prior art, and provide a device for detecting pure electric vehicle direct current charging circuit.

[0005] The utility model discloses a kind of devices for detecting pure electric vehicle direct current charging circuit, and the technical scheme for achieving its technical purpose is as follows: a detection connecting piece is connected with plug A end and plug B end integrally on the detection connecting piece, vehicle direct current charging port is connected by plug A end, plug B end is connected to direct current charging gun, so that the detection connecting piece is connected in series between vehicle alternating current charging port and direct current charging gun, to ensure that complete circuit is formed;Plug A end and plug B end are matched with the terminal head of vehicle direct current charging port and direct current charging gun respectively.

[0006] The safety cover plate and vehicle charging port point detection head are clamped in the detection connecting piece, the safety cover plate is located on the vehicle charging port point detection head side, and the vehicle charging port point detection head is covered in the detection connecting piece by the safety cover plate.

[0007] Preferably, the plug A end is formed into clamping by lock tongue and vehicle direct current charging port;The plug B end is formed into clamping by lock port and direct current charging gun.

[0008] Preferably, cover groove is set up in the detection connecting piece, the safety cover plate is located in cover groove, and one end is clamped in the cover groove by V-shaped elastic buckle;

[0009] The safety cover plate is hinged at one end in the cover groove, and the V-shaped elastic buckle at the other end of the safety cover plate is pressed manually and buckled, so that the safety cover plate is clamped in the cover groove and is convenient to open.

[0010] Preferably, a mounting groove is arranged in the cover groove, and an insertion groove is arranged in the middle of the mounting groove, and elastic components are arranged on both sides of the insertion groove.

[0011] The bottom of the vehicle charging port point detection head is fixedly connected with a latch, the vehicle charging port point detection head is placed in the mounting groove, the latch is inserted into the insertion groove by pressing the vehicle charging port point detection head, and the latch is elastically fixed by the elastic components.

[0012] Preferably, the elastic components comprise a communication groove, a spring and a spring ball.

[0013] One end of the communication groove is communicated with the insertion groove, one side of the communication groove is communicated with the mounting groove, one end of the spring is fixedly arranged in the communication groove, the other end of the spring is fixedly connected with the spring ball, the spring ball is pressed by the spring, a part of the spring ball is arranged in the insertion groove, and a part of the spring ball is arranged in the communication groove, the latch is inserted into the insertion groove, and the spring ball is elastically fixed with the latch.

[0014] Preferably, insertion holes are arranged on both sides of one end of the latch, the insertion holes are matched with the spring ball, the insertion holes are arranged as spherical holes, the spring ball is convenient to adhere to, and the vehicle charging port point detection head is convenient to mount and remove.

[0015] Compared with the prior art, the device has the following beneficial effects:

[0016] The device for detecting a direct-current charging circuit of a pure electric vehicle is connected in series to a direct-current charging port and a charging gun, so that the charging circuit is complete, and the charging function can be enabled, the detection terminal of the detection port of the vehicle charging port point detection head is measured by using a universal table and other detection tools, the condition of the direct-current charging port circuit can be directly measured, the charging circuit or component failure can be accurately judged, and therefore the first repair rate and work efficiency are improved.

[0017] The detection port is designed according to the national standard, can be applied to all vehicle models on the market, and is designed in a safe manner, and electric shock can be prevented. ACCURACY

[0018] Figure 1 It is a top view structural schematic diagram of the device for detecting a direct-current charging circuit of a pure electric vehicle.

[0019] Figure 2 It is a rear view structural schematic diagram of the plug A end.

[0020] Figure 3It is the front view structure schematic diagram of plug B end.

[0021] Figure 4 It is the device top view structure schematic diagram after the vehicle charging port point detection head is taken off.

[0022] Figure 5 It is the front view structure schematic diagram of plug and socket.

[0023] Wherein:

[0024] 1-detection connecting piece;101-safety cover plate;102-vehicle charging port point detection head;2-plug A end;201-latch;3-plug B end;301-locking hole;4-cover groove;5-mounting groove;6-plug groove;7-communication groove;8-elastic ball;9-spring;10-latch bolt;11-socket DETAILED DESCRIPTION

[0025] In the description of the present application, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present application, it should be explained that the terms "set", "mount", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In order to make the purpose, technical scheme and advantages of the present application more clear and explicit, the present application will be further described in detail through the drawings and examples. However, it should be understood that the specific examples described herein are only used to explain the present application and are not used to limit the scope of the present application. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present application. Example 1

[0028] Please refer to Figures 1-5The utility model provides a kind of detecting pure electric vehicle direct current charging circuit device, including detection connecting piece 1, detection connecting piece 1 integrally connects with plug A end 2 and plug B end 3, vehicle direct current charging port is connected by plug A end 2, plug B end 3 is connected to direct current charging gun, plug A end 2 is formed by locking tongue 201 and vehicle direct current charging port and is connected;Plug B end 3 is formed by locking mouth 301 and direct current charging gun, so that detection connecting piece 1 is connected between vehicle alternating current charging port and direct current charging gun in series, to ensure that complete circuit is formed;Plug A end 2 and plug B end 3 are matched with the terminal head of vehicle direct current charging port and direct current charging gun respectively.

[0029] Detection connecting piece 1 is equipped with safety cover plate 101 and vehicle charging port point detection head 102 inside, safety cover plate 101 is located on the side of vehicle charging port point detection head 102, and safety cover plate 101 covers vehicle charging port point detection head 102 inside detection connecting piece 1.

[0030] Further, in the embodiment, cover groove 4 is provided in the inside of detection connecting piece 1, safety cover plate 101 is located in cover groove 4, and one end of safety cover plate 101 is clamped in the inside of cover groove 4 by V-shaped elastic buckle; one end of safety cover plate 101 is hinged in the inside of cover groove 4, and the V-shaped elastic buckle at the other end of safety cover plate 101 is pressed and cocked manually, so that safety cover plate 101 is clamped in the inside of cover groove 4 and is convenient to open.

[0031] Further, in the embodiment, mounting groove 5 is provided in the inside of cover groove 4, plug-in slot 6 is provided in the middle end of mounting groove 5, and elastic assembly is provided on both sides of plug-in slot 6; plug bolt 10 is fixedly connected to the bottom of vehicle charging port point detection head 102, vehicle charging port point detection head 102 is placed in mounting groove 5, plug bolt 10 is inserted into plug-in slot 6 by pressing vehicle charging port point detection head 102, and plug bolt 10 is elastically fixed by elastic assembly.

[0032] Further, in the embodiment, elastic assembly includes communication groove 7, elastic ball 8 and spring 9; one end of communication groove 7 communicates with plug-in slot 6, one side of communication groove 7 communicates with mounting groove 5, one end of spring 9 is fixedly located in communication groove 7, the other end of spring 9 is fixedly connected with elastic ball 8, elastic ball 8 is pressed by spring 9, part of elastic ball 8 is located in plug-in slot 6, and part of elastic ball 8 is located in communication groove 7, plug bolt 10 is inserted into plug-in slot 6, and elastic ball 8 is elastically fixed with plug bolt 10.

[0033] Plug hole 11 is provided on both sides of one end of plug bolt 10, and plug hole 11 is matched with elastic ball 8; plug hole 11 is provided as spherical hole, which is convenient to adhere to the surface of elastic ball 8, and is convenient to install and remove vehicle charging port point detection head 102.

[0034] Specifically, in use, the device for testing the DC charging circuit of pure electric vehicles has an A port, designed according to national standards, which connects to the vehicle's DC charging port; it also has a B port, designed according to national standards, which connects to the DC charging gun; and the device has a vehicle charging port point detection head 102 in the middle, which has 9 detection ports, namely S-, S+, CC1, CC2, DC-, DC+, A-, A+, and PE. The size of the detection ports is adapted to the multimeter test leads for easy circuit testing; the wiring of each terminal of the 9 detection ports in the middle of the device is connected in parallel to each terminal of the A and B ports (the wiring of each terminal of the detection port is the same as that of each terminal of the A and B ports).

[0035] To prevent the risk of electric shock, the test port is designed with a safety cover 101. Testing can only be performed when the safety cover 101 is open, and there is a certain safe distance between the safety cover 101 and the port to prevent short circuits from occurring during testing by the multimeter test probes.

[0036] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural, procedural, or functional transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.

Claims

1. A device for detecting the DC charging circuit of a pure electric vehicle, characterized in that: Includes a detection connector (1), on which plug A end (2) and plug B end (3) are integrally connected. Plug A end (2) is connected to the vehicle's DC charging port, and plug B end (3) is connected to the DC charging gun, so that the detection connector (1) is connected in series with the vehicle's AC charging port and DC charging gun. The detection connector (1) is fitted with a safety cover plate (101) and a vehicle charging port position detection head (102). The safety cover plate (101) is located on one side of the vehicle charging port position detection head (102), and the safety cover plate (101) covers the vehicle charging port position detection head (102) inside the detection connector (1).

2. The device for detecting DC charging lines of pure electric vehicles according to claim 1, characterized in that: The plug A end (2) is connected to the vehicle DC charging port by a locking tongue (201); The plug B end (3) is connected to the DC charging gun through the locking port (301).

3. The device for detecting DC charging lines of pure electric vehicles according to claim 1, characterized in that: The detection connector (1) has a cover groove (4) inside, and the safety cover plate (101) is located in the cover groove (4), and one end of it is fastened inside the cover groove (4) by a V-shaped elastic buckle.

4. The device for detecting DC charging lines of pure electric vehicles according to claim 3, characterized in that: The cover groove (4) has an installation groove (5) inside, and a slot (6) is provided at the middle end of the installation groove (5). Elastic components are provided on both sides of the slot (6). The bottom of the vehicle charging port position detection head (102) is fixedly connected with a pin (10). By placing the vehicle charging port position detection head (102) into the mounting groove (5) and pressing the vehicle charging port position detection head (102), the pin (10) is inserted into the slot (6), so that the pin (10) is elastically fixed by the elastic component.

5. The device for detecting DC charging lines of pure electric vehicles according to claim 4, characterized in that: The elastic component includes a connecting groove (7), a ball (8), and a spring (9); One end of the connecting groove (7) is connected to the slot (6), and the other side is connected to the mounting groove (5). One end of the spring (9) is fixed in the connecting groove (7), and the other end is fixedly connected to the ball (8). The pin (10) is inserted into the slot (6), and the ball (8) and the pin (10) are elastically fixed.

6. The device for detecting DC charging lines of pure electric vehicles according to claim 5, characterized in that: The pin (10) has two holes (11) on both sides of one end, and the holes (11) are matched with the ball (8).

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