Electric vehicle detection circuit structure

Abstract

The utility model discloses an electric vehicle detection circuit structure, which comprises an adjustable direct current stabilized power supply, a detection platform, an insulation resistance tester and a switching module, the detection platform, the insulation resistance tester and the adjustable direct current stabilized power supply are all electrically connected with the switching module, and the switching module controls the on-off of a power supply loop of the detection platform and the insulation resistance tester; the detection platform comprises an electric appliance detection unit and an insulation detection unit, the insulation resistance tester is provided with a communication serial port, and the insulation resistance tester uploads insulation current information to the insulation detection unit through the communication serial port; the system further comprises an alarm module, the alarm module is electrically connected with the insulation resistance tester, the insulation resistance tester outputs an execution signal to the alarm module, and the alarm module gives an alarm according to the received execution signal. According to the structure, the functions of electric appliance detection and insulation detection are realized through one detector, and the alarm module realizes alarm prompt of a detection result, so that detection personnel can judge conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle detection, in particular to an electric vehicle detection circuit structure. Background Art

[0002] The insulation leakage test and electrical inspection test of electric bicycles are important and indispensable links in the production of electric bicycles. When conducting electrical inspection, the electrical inspection and testing system of electric bicycles needs to be equipped with relevant equipment for electrical testing. After the electrical inspection is completed, the insulation leakage test system needs to be equipped with relevant equipment to perform insulation leakage inspection. The inspection process not only consumes more manpower and material resources, but also requires inspection personnel to remove and connect the lines, which makes the inspection time longer and needs to be improved. Summary of the invention

[0003] The utility model provides a new electric vehicle detection circuit structure to solve the defects in the prior art that different equipment is needed to perform insulation leakage test and electrical appliance inspection test on electric bicycles, which requires a lot of manpower and material resources and takes a long time to detect.

[0004] In order to solve the above technical problems, the utility model is implemented through the following technical solutions:

[0005] An electric vehicle detection circuit structure comprises an adjustable DC regulated power supply, a detection platform, an insulation resistance tester and a switching module, wherein the detection platform, the insulation resistance tester and the adjustable DC regulated power supply are all electrically connected to the switching module, the adjustable DC regulated power supply supplies power to the detection platform and the insulation resistance tester, and the switching module controls the on and off of the power supply circuits of the detection platform and the insulation resistance tester; the detection platform comprises an electrical detection unit and an insulation detection unit, the insulation resistance tester is provided with a communication serial port, and the insulation resistance tester uploads insulation current information to the insulation detection unit through the communication serial port; and also comprises an alarm module, the alarm module is electrically connected to the insulation resistance tester, the insulation resistance tester outputs an execution signal to the alarm module, and the alarm module gives an alarm according to the received execution signal.

[0006] The electrical detection unit and the adjustable DC regulated power supply in the detection platform constitute an electrical detection circuit, and the insulation detection unit and the insulation resistance tester constitute an insulation detection circuit. The switching of the electrical detection circuit and the insulation detection circuit is realized through the switching module, so that the functions of electrical detection and insulation detection of electric vehicles can be realized through one detector, which shortens the detection time and improves the convenience during detection; the alarm prompt of the detection result of the insulation resistance tester is realized through the alarm module, which facilitates the judgment of the detection personnel.

[0007] Preferably, in the above-mentioned electric vehicle detection circuit structure, the switching module includes a two-way passive switch contact relay, the positive pole of the adjustable DC regulated power supply is electrically connected to the C1 end of the two-way passive switch contact relay, the positive pole of the insulation resistance tester is electrically connected to the C2 end of the two-way passive switch contact relay, the negative pole of the adjustable DC regulated power supply is electrically connected to the negative pole of the detection platform, the negative pole of the insulation resistance tester is grounded, and the positive pole of the detection platform is electrically connected to the NC1 end and NO2 end of the two-way passive switch contact relay; the switching module also includes a remote control and a controller, the controller is electrically connected to the two-way passive switch contact relay, the controller and the remote control are provided with matching receiving and transmitting signal antennas, the remote control outputs a switching instruction to the controller, and the controller controls the NC1 end and NO1 end of the two-way passive switch contact relay to switch, and the NO2 end and NC2 end to switch.

[0008] The two-way passive switch contact relay acts as a switching switch to realize the interlocking switching between the adjustable DC regulated power supply and the insulation resistance tester. At the same time, the two-way passive switch contact relay can be remotely controlled by the remote control and controller. When the insulation resistance tester detects that the insulation value is zero or infinitely close to zero, the remote control, controller and two-way passive switch contact relay can realize the control of the working state of the insulation resistance tester, thereby improving the fool-proof and error-proof rate of the insulation resistance tester.

[0009] Preferably, in the above-described electric vehicle detection circuit structure, the alarm module includes a three-color light, the insulation resistance tester is provided with a remote control serial port, the insulation resistance tester and the three-color light are electrically connected through the remote control serial port, and the insulation resistance tester sends an execution signal to the three-color light.

[0010] The insulation resistance tester controls the three-color lamp to emit different colors of light through the remote control serial port, realizing light warning for insulation leakage detection of electric vehicles, further facilitating the judgment of testers.

[0011] Preferably, the above-mentioned electric vehicle detection circuit structure further includes a DP9 interface, the DP9 interface is electrically connected to the three-color light, and the DP9 interface is inserted into the remote control serial port and electrically connected to the insulation resistance tester.

[0012] The setting of DP9 interface improves the integration and simplicity of the connection between the three-color lamp and the insulation resistance tester circuit, and facilitates the wiring of the insulation resistance tester.

[0013] Preferably, in the above-mentioned electric vehicle detection circuit structure, the alarm module also includes a buzzer, the three-color light includes a red light, a green light and a yellow light, the buzzer is connected in parallel with the red light, the 7th, 8th and 1st terminals of the DP9 interface are all electrically connected to the 0V voltage, the green light is connected in series between the 6th terminal of the DP9 interface and the 24V voltage, the yellow light is connected in series between the 4th terminal of the DP9 interface and the 24V voltage, and the red light is connected in series between the 9th terminal of the DP9 interface and the 24V voltage.

[0014] When the insulation resistance tester detects that the insulation test result of the electric vehicle meets the standard, the insulation resistance tester controls the power supply circuit of the green light to be turned on. When the insulation resistance tester detects that the electric vehicle is leaking, the insulation resistance tester controls the power supply circuit of the buzzer and the red light to be turned on, so that sound and light warnings can be given, which is convenient for intuitive judgment of the insulation test results of the electric vehicle; when the insulation resistance tester is in the test state, the insulation resistance tester controls the power supply circuit of the yellow light to be turned on, so as to prompt the working status of the insulation resistance tester, which is convenient for maintenance of the insulation resistance tester.

[0015] Preferably, in the above-mentioned electric vehicle detection circuit structure, the insulation resistance tester is provided with a display screen.

[0016] The working status of the insulation resistance tester can be observed through the display screen, which further facilitates the detection work.

[0017] Preferably, the above-mentioned electric vehicle detection circuit structure further includes a metal grounding partition, a grounding wire is arranged on the metal grounding partition, the grounding wire is electrically connected to the negative pole of the insulation resistance tester, and the detection platform is arranged on the metal grounding partition.

[0018] The metal grounding partition provides grounding protection for the testing platform and the insulation resistance tester, thus improving the safety during testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the circuit connection relationship of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the insulation resistance tester of the utility model from the front view;

[0021] Figure 3 This is a schematic diagram of the structure of the insulation resistance tester of the utility model from the back view;

[0022] Figure 4 This is a schematic diagram of the structure of the three-color lamp and the DP9 interface of the utility model;

[0023] Figure 5This is a circuit connection diagram of the three-color lamp and the DP9 interface of the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the remote controller of the utility model;

[0025] Figure 7 It is a structural diagram of the controller of the utility model;

[0026] Figure 8 It is a structural schematic diagram of the metal grounding partition of the utility model. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-8 The present invention is further described in detail with the following specific embodiments, but they are not intended to limit the present invention:

[0028] Example 1

[0029] like Figure 1-Figure 8 As shown, an electric vehicle detection circuit structure includes an adjustable DC regulated power supply 1, a detection platform 2, an insulation resistance tester 3 and a switching module 4, wherein the detection platform 2, the insulation resistance tester 3 and the adjustable DC regulated power supply 1 are all electrically connected to the switching module 4, the adjustable DC regulated power supply 1 supplies power to the detection platform 2 and the insulation resistance tester 3, and the switching module 4 controls the on-off of the power supply circuits of the detection platform 2 and the insulation resistance tester 3; the detection platform 2 includes an electrical detection unit 21 and an insulation detection unit 22, the insulation resistance tester 3 is provided with a communication serial port 30, and the insulation resistance tester 3 uploads insulation current information to the insulation detection unit 22 through the communication serial port 30; and also includes an alarm module 5, the alarm module 5 is electrically connected to the insulation resistance tester 3, the insulation resistance tester 3 outputs an execution signal to the alarm module 5, and the alarm module 5 gives an alarm according to the received execution signal.

[0030] Preferably, the switching module 4 includes a two-way passive switch contact relay 41, the positive electrode of the adjustable DC regulated power supply 1 is electrically connected to the C1 end of the two-way passive switch contact relay 41, the positive electrode of the insulation resistance tester 3 is electrically connected to the C2 end of the two-way passive switch contact relay 41, the negative electrode of the adjustable DC regulated power supply 1 is electrically connected to the negative electrode of the detection platform 2, the negative electrode of the insulation resistance tester 3 is grounded, and the positive electrode of the detection platform 2 is electrically connected to the NC1 end and the NO2 end of the two-way passive switch contact relay 41; the switching module 4 also includes a remote control 42 and a controller 43, the controller 43 is electrically connected to the two-way passive switch contact relay 41, and the controller 43 and the remote control 42 are provided with matching receiving and transmitting signal antennas 6, the remote control 42 outputs a switching instruction to the controller 43, and the controller 43 controls the NC1 end and the NO1 end of the two-way passive switch contact relay 41 to switch, and the NO2 end and the NC2 end to switch.

[0031] Preferably, the alarm module 5 includes a three-color light 51 , the insulation resistance tester 3 is provided with a remote control serial port 31 , the insulation resistance tester 3 and the three-color light 51 are electrically connected via the remote control serial port 31 , and the insulation resistance tester 3 sends an execution signal to the three-color light 51 .

[0032] Preferably, it further includes a DP9 interface 7 , which is electrically connected to the three-color light 51 , and is inserted into the remote control serial port 31 and electrically connected to the insulation resistance tester 3 .

[0033] Preferably, the alarm module 5 also includes a buzzer 52, the three-color light 51 includes a red light 511, a green light 512 and a yellow light 513, the buzzer 52 is connected in parallel with the red light 511, the 7th, 8th and 1st terminals of the DP9 interface 7 are all electrically connected to a 0V voltage, the green light 512 is connected in series between the 6th terminal of the DP9 interface 7 and the 24V voltage, the yellow light 513 is connected in series between the 4th terminal of the DP9 interface 7 and the 24V voltage, and the red light 511 is connected in series between the 9th terminal of the DP9 interface 7 and the 24V voltage.

[0034] Preferably, the insulation resistance tester 3 is provided with a display screen 32 .

[0035] Preferably, it further comprises a metal grounding partition 8 , on which a grounding wire 81 is arranged, and the grounding wire 81 is electrically connected to the negative pole of the insulation resistance tester 3 , and the detection platform 2 is arranged on the metal grounding partition 8 .

[0036] Specifically, Figure 1-Figure 8As shown, the insulation resistance tester 3 forms an alarm circuit through the remote control serial port 31, the DP9 interface 7 and the alarm module 5, the negative pole of the insulation resistance tester 3 is grounded through the grounding wire 81, and the insulation resistance tester 3 and the detection platform 2 form an insulation detection circuit through the C2 end and the NO2 end of the two-way passive switch contact relay 41; the adjustable DC regulated power supply 1 and the detection platform 2 form an electrical detection circuit through the C1 end and the NC1 end of the two-way passive switch contact relay 41. The electrical detection circuit is usually in a conducting state, so that the detection platform 2 is an electrical detection system under normal conditions. After the detection is completed, the insulation detection circuit is turned on by the switching module 4 to realize the insulation detection of the electric vehicle.

[0037] When testing an electric vehicle, the adjustable DC regulated power supply 1 drives current into the vehicle to perform electrical testing. The electrical testing unit 21 collects and stores the test data of the lights, motors, instruments, etc. When the test is completed, press the remote control button on the remote control 42. At this time, the controller 43 can be used to switch the NC2 end of the two-way passive switch contact relay 41 to the NO2 end, thereby switching the test platform 2 to the insulation testing unit 22, and the insulation testing circuit is turned on. The yellow light 513 lights up, and the insulation test of the electric vehicle begins.

[0038] The insulation value detected by the insulation resistance tester 3 is displayed on the display screen 32 and uploaded to the insulation detection unit 22 through the communication serial port 30. When the insulation detection unit 22 determines that the currently detected insulation value does not meet the standard, the insulation detection unit 22 controls the insulation resistance tester 3 to send an execution signal to make the red light 511 and the buzzer 52 start working. At this time, the inspection personnel will stick an unqualified identification plate on the electric vehicle currently being inspected. When the insulation detection unit 22 determines that the currently detected insulation value meets the standard, the insulation detection unit 22 controls the insulation resistance tester 3 to send an execution signal to control the green light 512 to work, thereby completing the inspection of the electric vehicle.

[0039] In conclusion, the above is only a preferred embodiment of the present invention, and all equivalent changes and modifications made within the scope of the patent application for the present invention should fall within the scope of the present invention.

Claims

1. An electric vehicle detection circuit structure, characterized in that: The invention comprises an adjustable DC regulated power supply (1), a detection platform (2), an insulation resistance tester (3) and a switching module (4); the detection platform (2), the insulation resistance tester (3) and the adjustable DC regulated power supply (1) are all electrically connected to the switching module (4); the adjustable DC regulated power supply (1) supplies power to the detection platform (2) and the insulation resistance tester (3); the switching module (4) controls the on and off of the power supply circuits of the detection platform (2) and the insulation resistance tester (3); the detection platform (2) comprises an electrical detection unit (21) and an insulation detection unit (22); the insulation resistance tester (3) is provided with a communication serial port (30); the insulation resistance tester (3) uploads insulation current information to the insulation detection unit (22) via the communication serial port (30); and the invention also comprises an alarm module (5); the alarm module (5) is electrically connected to the insulation resistance tester (3); the insulation resistance tester (3) outputs an execution signal to the alarm module (5); the alarm module (5) gives an alarm according to the received execution signal.

2. The electric vehicle detection circuit structure according to claim 1, characterized in that: The switching module (4) comprises a two-way passive switch contact relay (41), the positive electrode of the adjustable DC regulated power supply (1) is electrically connected to the C1 end of the two-way passive switch contact relay (41), the positive electrode of the insulation resistance tester (3) is electrically connected to the C2 end of the two-way passive switch contact relay (41), the negative electrode of the adjustable DC regulated power supply (1) is electrically connected to the negative electrode of the detection platform (2), the negative electrode of the insulation resistance tester (3) is grounded, and the positive electrode of the detection platform (2) is electrically connected to the N terminal of the two-way passive switch contact relay (41). The C1 terminal and the NO2 terminal are electrically connected; the switching module (4) further comprises a remote controller (42) and a controller (43); the controller (43) is electrically connected to the two-way passive switch contact relay (41); the controller (43) and the remote controller (42) are provided with matching antennas (6) for receiving and transmitting signals; the remote controller (42) outputs a switching instruction to the controller (43); the controller (43) controls the NC1 terminal and the NO1 terminal of the two-way passive switch contact relay (41) to switch, and the NO2 terminal and the NC2 terminal to switch.

3. The electric vehicle detection circuit structure according to claim 1, characterized in that: The alarm module (5) comprises a three-color light (51); the insulation resistance tester (3) is provided with a remote control serial port (31); the insulation resistance tester (3) and the three-color light (51) are electrically connected via the remote control serial port (31); and the insulation resistance tester (3) sends an execution signal to the three-color light (51).

4. The electric vehicle detection circuit structure according to claim 3, characterized in that: It also includes a DP9 interface (7), the DP9 interface (7) is electrically connected to the three-color lamp (51), and the DP9 interface (7) is inserted into the remote control serial port (31) and is electrically connected to the insulation resistance tester (3).

5. The electric vehicle detection circuit structure according to claim 4, characterized in that: The alarm module (5) further comprises a buzzer (52), the three-color light (51) comprises a red light (511), a green light (512) and a yellow light (513), the buzzer (52) and the red light (511) are connected in parallel, the 7th, 8th and 1st terminals of the DP9 interface (7) are all electrically connected to a 0V voltage, the green light (512) is connected in series between the 6th terminal of the DP9 interface (7) and a 24V voltage, the yellow light (513) is connected in series between the 4th terminal of the DP9 interface (7) and the 24V voltage, and the red light (511) is connected in series between the 9th terminal of the DP9 interface (7) and the 24V voltage.

6. The electric vehicle detection circuit structure according to claim 1, characterized in that: The insulation resistance tester (3) is provided with a display screen (32).

7. The electric vehicle detection circuit structure according to claim 1, characterized in that: It also comprises a metal grounding partition (8), on which a grounding wire (81) is arranged, and the grounding wire (81) is electrically connected to the negative pole of the insulation resistance tester (3), and the detection platform (2) is arranged on the metal grounding partition (8).

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