Multifunctional new energy automobile alternating current charging detector

Abstract

The invention discloses a multifunctional new energy automobile alternating current charging detector, and belongs to the technical field of charging detection, the multifunctional new energy automobile alternating current charging detector comprises a detector assembly, the detector assembly comprises a detector body, one side of the detector body is fixedly connected with a handle, and the upper side of the detector body is fixedly provided with a socket bottom plate through a cross screw; meanwhile, one side of the socket bottom plate is provided with a charging plug bottom plate, and one side of the detector body is fixedly provided with an oscilloscope through a cross screw. According to the invention, PWM waveform changes of 12V, 9V and 6V of CP signals can be captured in real time, poor contact of a conduction loop can be accurately positioned, the state of an S3 microswitch in a CC signal and subtle changes of an RC resistance value can be stably and reliably identified, the misjudgment risk of a traditional method is solved, the diagnosis precision is remarkably improved, and in L, N and PE main loop detection, the detection accuracy is greatly improved. Power attenuation caused by increase of the contact resistance can be identified without disassembling the charging pile, and all-condition verification of the performance of the charging system is realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of charging detection, and in particular is a multifunctional AC charging detector for new energy vehicles. Background Art

[0002] With the rapid development of the new energy vehicle industry, its market penetration rate continues to rise. As a core component of new urban supporting facilities, the demand for charging infrastructure is becoming increasingly urgent. Currently, charging piles generally adopt the AC grid input plus charging gun output mode, which provides basic support for the country's new energy strategic goals. Although the dense layout of charging stations has alleviated the contradiction of no piles available, it has exposed new operation and maintenance bottlenecks.

[0003] When in use, traditional charging testers can only statically measure the 12V initial voltage, and cannot capture the 12V, 9V, and 6V transient voltage changes required for the charging process, resulting in poor contact or PWM modulation faults that are difficult to locate. In addition, when in use, it is impossible to stably and reliably identify subtle changes in the S3 microswitch state and RC resistance in the CC signal, which reduces the accuracy of diagnosis. In addition, when testing the L, N, and PE main circuits, the charging pile often needs to be disassembled. It is impossible to identify the increase in contact resistance and power attenuation caused by pin oxidation in the energized state, and the lack of safety mechanisms under dynamic working conditions increases the risk of electric shock for testers. Existing charging testers often only support production testing and cannot switch to teaching mode. In addition, existing charging testers cannot convert the power supply of the charging gun to the jack, and cannot meet the diverse needs of power usage scenarios. Summary of the Invention

[0004] The purpose of the present invention is to provide a multifunctional new energy vehicle AC charging tester to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a multifunctional new energy vehicle AC charging tester, comprising a tester assembly, wherein the tester assembly includes a tester body, a handle fixedly connected to one side of the tester body, a socket base plate fixedly mounted on the upper side of the tester body via a cross screw, a charging plug base plate provided on one side of the socket base plate, an oscilloscope fixedly mounted on one side of the tester body via a cross screw, an operating button provided on the oscilloscope, and a start / stop switch fixedly mounted on one side of the tester body;

[0006] As a further preferred embodiment of the present technical solution: an external interface is fixedly installed on one side of the detector body, the external interface is used to connect a multimeter, and a charging indicator light is fixedly installed on one side of the detector body, and multiple groups of external interfaces are provided;

[0007] As a further preferred of the technical solution: the one side of the detector body is fixedly installed with a display screen, and the display screen is arranged on the one side of the start-stop switch, and the oscilloscope is arranged on the side of the start-stop switch away from the display screen.

[0008] As a further preferred of the technical solution: the upper side of the socket bottom plate is fixedly installed with a fixed shell, and the fixed shell is hingedly connected with a socket cover plate through the hinged part arranged on the one side of the fixed shell, and the one side of the socket cover plate is threadedly connected with a screw knob, and the screw knob is used for stably fixing the socket cover plate on the fixed shell.

[0009] As a further preferred of the technical solution: the screw knob is threadedly connected in the threaded groove arranged on the fixed shell through the socket cover plate, and the screw knob is symmetrically provided with two groups.

[0010] As a further preferred of the technical solution: the upper side of the fixed shell is provided with a leakage protector, and the one side of the leakage protector is provided with a socket, and the socket is arranged on the fixed shell.

[0011] As a further preferred of the technical solution: the upper side of the fixed shell is fixedly installed with a lock catch, and the socket cover plate is slidably arranged on the lock catch through the groove arranged on the fixed shell.

[0012] As a further preferred of the technical solution: the charging plug bottom plate is fixedly installed on the detector body through the cross screw arranged on the charging plug bottom plate, and the upper side of the charging plug bottom plate is provided with a charging socket, and the one side of the charging plug bottom plate is hingedly connected with a charging cover plate through the hinged part arranged on the charging plug bottom plate.

[0013] As a further preferred of the technical solution: the upper side of the charging plug bottom plate is fixedly connected with a buckle, and the charging cover plate can be clamped on the buckle.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] 1、In the present application, the oscilloscope can capture the PWM waveform changes of the CP signal 12V, 9V and 6V in real time, accurately locate the poor contact of the conduction loop, and reliably identify the subtle changes of the S3 microswitch state and RC resistance in the CC signal, thereby solving the misjudgment risk of the traditional method and significantly improving the diagnosis accuracy.

[0016] 2、In the present application, in the L, N, PE main loop detection, the power attenuation caused by the increase of the contact resistance can be identified without disassembling the charging pile, the performance of the charging system under all working conditions is verified, the leakage protector is used for realizing the rapid power-off protection, the socket with the IP67 waterproof level is designed, the water and electricity coupling risk in the detection process is fundamentally eliminated, and the safety of the person and the vehicle is effectively ensured.

[0017] 3. In the present invention, the performance of AC charging piles and charging guns of new energy vehicles can be accurately judged, providing efficient protection for equipment maintenance and charging safety, and supporting flexible switching between production testing and teaching modes to meet the dual needs of enterprise operation and maintenance and school training. At the same time, the power conversion of the charging gun can be adapted to a standard jack to achieve support for diversified power usage scenarios and expand the application scenarios of new energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the multifunctional AC charging detector for new energy vehicles of the present invention;

[0019] Figure 2 This is a partial structural diagram of the multifunctional AC charging detector for new energy vehicles of the present invention. Figure One ;

[0020] Figure 3 This is a partial structural diagram of the multifunctional AC charging detector for new energy vehicles of the present invention. Figure Two ;

[0021] Figure 4 This is a partial structural diagram of the multifunctional AC charging detector for new energy vehicles of the present invention. Figure Three .

[0022] Legend: 1. Detector assembly; 101. Detector body; 102. Handle; 103. Oscilloscope; 104. Operation button; 105. External interface; 106. Start / stop switch; 107. Charging indicator light; 108. Display screen; 201. Socket base; 202. Fixed housing; 203. Socket cover; 204. Threaded knob; 205. Leakage protector; 206. Socket; 207. Lock; 301. Charging plug base; 302. Charging jack; 303. Charging cover; 304. Buckle. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example

[0025] See also Figures 1-4As shown, the present invention provides a technical solution: a multifunctional new energy vehicle AC charging tester, including a tester assembly 1, the tester assembly 1 includes a tester body 101, and a handle 102 is fixedly connected to one side of the tester body 101, and a socket base plate 201 is fixedly installed on the upper side of the tester body 101 by a cross screw, and a charging plug base plate 301 is provided on one side of the socket base plate 201, an oscilloscope 103 is fixedly installed on one side of the tester body 101 by a cross screw, and an operation button 104 is provided on the oscilloscope 103, and a start-stop switch 106 is fixedly installed on one side of the tester body 101;

[0026] In this embodiment, specifically: an external interface 105 is fixedly installed on one side of the detector body 101, and a charging indicator light 107 is fixedly installed on one side of the detector body 101, and the external interface 105 is provided with multiple groups;

[0027] In this embodiment, specifically: a display screen 108 is fixedly mounted on one side of the detector body 101, and the display screen 108 is arranged on one side of the start-stop switch 106, and the oscilloscope 103 is arranged on the side of the start-stop switch 106 away from the display screen 108;

[0028] In this embodiment, specifically: a fixed housing 202 is fixedly mounted on the upper side of the socket base plate 201, and a socket cover plate 203 is hingedly connected to one side of the fixed housing 202 via a hinged portion, and a threaded knob 204 is threadedly connected to one side of the socket cover plate 203;

[0029] In this embodiment, specifically: the threaded knob 204 passes through the socket cover 203 and is threadedly connected to the threaded groove provided on the fixed housing 202, and the threaded knob 204 is symmetrically provided in two groups;

[0030] In this embodiment, specifically: a leakage protector 205 is provided on the upper side of the fixed housing 202, and a socket 206 is provided on one side of the leakage protector 205, and the socket 206 is provided on the fixed housing 202;

[0031] In this embodiment, specifically: a lock buckle 207 is fixedly mounted on the upper side of the fixed housing 202, and the socket cover 203 slides on the lock buckle 207 through a groove provided therein;

[0032] In this embodiment, specifically: the charging plug base plate 301 is fixedly mounted on the detector body 101 by means of a cross screw, and a charging socket 302 is provided on the upper side of the charging plug base plate 301, and a charging cover plate 303 is hingedly connected to one side of the charging plug base plate 301 by means of a hinged portion;

[0033] In this embodiment, specifically, a buckle 304 is fixedly connected to the upper side of the charging plug base plate 301 , and the charging cover plate 303 can be engaged with the buckle 304 .

[0034] Working principle or structural principle: There are seven terminals on the alternating current charging gun, two of which are CP and CC signals, three of which are L, N and PE of the charging power supply, and two of which are spare L1 and L2 terminals. In actual maintenance, the charging cover plate 303 is manually turned up to open the charging cover plate 303 from the charging socket 302, and the charging plug is inserted into the charging socket 302 provided on the charging plug bottom plate 301. The test lamp directly displays the power input state. When the test lamp is on, it indicates that the live wire, neutral wire and ground wire of the charging pile are normally powered. When the test lamp is not on, it indicates that the charging pile has a fault of open circuit, short circuit or virtual connection. At the same time, the display screen 108 provided on one side of the detector body 101 can display voltage, current and power data in real time, which is used to assist in judging voltage fluctuation and current anomaly.

[0035] The oscilloscope 103 is provided on one side of the detector body 101. The oscilloscope 103 enters the CP detection mode by operating the operation button 104 provided on the oscilloscope 103. The detector body 101 simulates the resistance value change of the vehicle-mounted charger, feeds back different charging state signals to the charging pile, and the oscilloscope 103 captures the CP line waveform to judge the quality of the CP signal of the charging pile. A CC signal can be simulated on the detector to be delivered to the vehicle. If the vehicle charging indicator light 107 is normally on, it is confirmed that the charging pile signal is defective. If the vehicle charging indicator light 107 is not on, the vehicle control unit is faulty. When the detector body 101 is connected to the charging pile through the charging socket 302, 220V alternating current can be output through the socket 206 as an emergency power supply. The overload protection is provided by the leakage protector 205. The external interface 105 is provided on one side of the detector body 101. The external interface 105 can be directly connected to the multimeter probe for measuring the real-time voltage and resistance value of each terminal. The overall power supply is controlled by the leakage protector 205. When the socket cover plate 203 is not used, the socket cover plate 203 is turned down and covers the fixed housing 202. The slot provided on the socket cover plate 203 is slid to the lock catch 207. The threaded knob 204 is manually rotated and connected to the threaded groove provided on the fixed housing 202, so that the socket cover plate 203 is stably covered on the fixed housing 202. Two groups of handles 102 are fixedly installed on one side of the detector body 101. The user holds the handle 102 to move and carry the detector body 101.

[0036] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A multifunctional new energy vehicle AC charging detector, comprising a detector component (1), characterized in that: The detector assembly (1) comprises a detector body (101), a handle (102) is fixedly connected to one side of the detector body (101), a socket base plate (201) is fixedly mounted on the upper side of the detector body (101) via a cross screw, and a charging plug base plate (301) is provided on one side of the socket base plate (201), an oscilloscope (103) is fixedly mounted on one side of the detector body (101) via a cross screw, an operating button (104) is provided on the oscilloscope (103), and a start / stop switch (106) is fixedly mounted on one side of the detector body (101).

2. The multifunctional new energy vehicle AC charging detector according to claim 1 is characterized in that: An external interface (105) is fixedly mounted on one side of the detector body (101), a charging indicator light (107) is fixedly mounted on one side of the detector body (101), and multiple groups of external interfaces (105) are provided.

3. The multifunctional new energy vehicle AC charging detector according to claim 1 is characterized in that: A display screen (108) is fixedly mounted on one side of the detector body (101), and the display screen (108) is arranged on one side of the start / stop switch (106), and the oscilloscope (103) is arranged on a side of the start / stop switch (106) away from the display screen (108).

4. The multifunctional new energy vehicle AC charging detector according to claim 1 is characterized in that: A fixed housing (202) is fixedly mounted on the upper side of the socket base plate (201), and a socket cover plate (203) is hingedly connected to one side of the fixed housing (202) via a hinged portion, and a threaded knob (204) is threadedly connected to one side of the socket cover plate (203).

5. The multifunctional new energy vehicle AC charging detector according to claim 4 is characterized in that: The threaded knob (204) passes through the socket cover (203) and is threadedly connected to a threaded groove provided on the fixed housing (202), and two groups of threaded knobs (204) are symmetrically provided.

6. The multifunctional new energy vehicle AC charging detector according to claim 4 is characterized in that: A leakage protector (205) is provided on the upper side of the fixed housing (202), and a socket (206) is provided on one side of the leakage protector (205), and the socket (206) is provided on the fixed housing (202).

7. The multifunctional new energy vehicle AC charging detector according to claim 4 is characterized in that: A lock buckle (207) is fixedly mounted on the upper side of the fixed housing (202), and the socket cover plate (203) slides on the lock buckle (207) through a provided slot.

8. The multifunctional new energy vehicle AC charging detector according to claim 1 is characterized in that: The charging plug base plate (301) is fixedly mounted on the detector body (101) via a cross screw, a charging socket (302) is provided on the upper side of the charging plug base plate (301), and a charging cover plate (303) is hingedly connected to one side of the charging plug base plate (301) via a hinged portion.

9. The multifunctional new energy vehicle AC charging detector according to claim 8, characterized in that: A buckle (304) is fixedly connected to the upper side of the charging plug base plate (301), and the charging cover plate (303) can be snapped onto the buckle (304).

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