CN210534299U

CN210534299U - Vehicle lamp durability testing device

Info

Publication number: CN210534299U
Application number: CN201921309093.0U
Authority: CN
Inventors: 吴骏; 沈炯; 徐俊
Original assignee: Magna Mirrors Taicang Automotive Technology Co ltd
Current assignee: Magna Mirrors Taicang Automotive Technology Co ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-05-15
Anticipated expiration: 2029-08-13

Abstract

The utility model discloses an automobile-used lamps and lanterns durability testing arrangement, including control circuit, the power supply circuit, temperature detect circuit, current detection circuit, the auxiliary relay module, start stop circuit and input/output equipment, temperature detect circuit, the current detection circuit, the auxiliary relay module, start stop circuit and input/output equipment and be connected with control circuit, the power supply circuit provides the power and supports, temperature detect circuit is used for detecting test environment temperature, the current detection circuit is used for detecting the electric current of automobile-used lamps and lanterns, the auxiliary relay module passes through the interface and is connected with automobile-used lamps and lanterns, utilize switch-on and the disconnection of control circuit through the automobile-used lamps and lanterns power of auxiliary relay module control. Through the cooperation of all circuits, the detection of the vehicle lamp is realized; by adding the temperature detection circuit, the time of a tester is saved, and the detection data is more referential. Through the cooperation of control circuit, realize detecting a plurality of automobile-used lamps and lanterns simultaneously, improved detection efficiency.

Description

Vehicle lamp durability testing device

Technical Field

The utility model relates to a vehicle lamps and lanterns test field, in particular to vehicle lamps and lanterns durability testing arrangement.

Background

The automobile enters each household, and the normal use of various parts on the automobile is related to the safety of the automobile, such as lamps. When a car runs on a road, the most frequently used lamp is a turn signal lamp, and the turn signal lamp needs to be turned to inform a vehicle behind every time the car changes lanes or turns. However, if the turn signal lamp is damaged, the driver starts the turn signal lamp, but the turn signal lamp does not flicker, the vehicle behind does not receive the signal, and emergency avoidance does not exist, so that traffic accidents are likely to be caused. Especially in areas with harsh environments, the durability of the lamp is more important. Therefore, there is a need for a lamp capable of testing the durability of a vehicular lamp. In particular to a device for testing the durability of the vehicle lamp in extreme environment.

SUMMERY OF THE UTILITY MODEL

Aiming at overcoming the defects of the prior art, the utility model discloses a durability testing device for vehicle lamps, which comprises a control circuit, a power circuit, a temperature detecting circuit, a current detecting circuit, an intermediate relay module, a start-stop circuit and an input/output device, wherein the temperature detecting circuit, the current detecting circuit, the intermediate relay module, the start-stop circuit and the input/output device are connected with the control circuit, the power circuit provides power support, the temperature detecting circuit is used for detecting the environmental temperature, the current detecting circuit is used for detecting the current of the vehicle lamps, the intermediate relay module is connected with the vehicle lamps through an interface, the control circuit controls the on-off of the power of the vehicle lamps through the intermediate relay module, the start-stop circuit sends start and stop signals to the control circuit to control the start and stop of the test device, and the input and output equipment is used for exchanging information with the control circuit.

Further, the temperature detection circuit comprises a two-wire temperature transmitter.

Further, the current detection circuit includes a two-wire current transmitter.

Further, the control circuit comprises a PLC, a DQ module and an AI module.

Further, the PLC is S7-1200, the DQ module is SM1222, and the AI module is SM 1231.

Further, the intelligent control system also comprises an operation indicator light and a buzzer, wherein the operation indicator light and the buzzer are connected with the intermediate relay module.

Further, the power supply circuit further comprises a leakage protector.

Further, the power circuit further comprises a key switch.

The utility model discloses the beneficial effect who gains:

through the cooperation of the circuits of the utility model, the detection of the vehicle lamp is realized; in addition, by adding the temperature detection circuit, the time of a tester is saved, and the detection data is more referential. And, through control circuit's cooperation, realize detecting a plurality of automobile-used lamps and lanterns simultaneously, improved detection efficiency.

Drawings

Fig. 1 is a schematic block diagram of a device for testing durability of a vehicular lamp according to the present invention;

FIG. 2 is a circuit diagram of a control circuit;

FIG. 3 is a wiring diagram of another portion of the control circuit;

FIG. 4 is a wiring diagram of an intermediate relay module;

FIG. 5 is a line drawing of an intermediate relay module and a vehicle light socket;

FIG. 6 is a wiring diagram of the outer topology circuit;

FIG. 7 is a wiring diagram of the start-stop circuit;

FIG. 8 is a partial wiring diagram of a power supply circuit;

FIG. 9 is a partial wiring diagram of a power circuit;

FIG. 10 is a partial wiring diagram of a power supply circuit;

FIG. 11 is a partial wiring diagram of a power supply circuit;

the reference numbers are as follows:

1. the control circuit 2, the power supply circuit 3, the temperature detection circuit 4, the current detection circuit 5, the intermediate relay module 6, the start stop circuit 7 and the input and output equipment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

A device for testing the durability of a vehicle lamp is disclosed, as shown in figures 1-11, and comprises a control circuit 1, a power circuit 2, a temperature detection circuit 3, a current detection circuit 4, an intermediate relay module 5, a start-stop circuit 6 and an input-output device 7, wherein the temperature detection circuit 3, the current detection circuit 4, the intermediate relay module 5, the start-stop circuit 6 and the input-output device 7 are connected with the control circuit 1, the power circuit 2 provides power support, because the control circuit 1 and the vehicle lamp need different voltages, the power circuit 2 comprises a switch power supply and a test power supply, the switch power supply provides power for the control circuit 1, the temperature detection circuit 3, the current detection circuit 4, the intermediate relay module 5 and the start-stop circuit 6, and the test power supply provides power for the vehicle lamp. The temperature detection circuit 3 is used for measuring the test environment temperature. The current detection circuit 4 is used for measuring the current value flowing on each vehicle lamp, and whether the vehicle lamp works normally can be judged according to the current value. The intermediate relay module 5 is connected with the vehicle lamp through an interface, and controls the intermediate relay module through a control circuit so as to control the on and off of a power supply of the vehicle lamp; specifically, the intermediate relay module is formed by a plurality of relays, and the on and off of the relays are controlled by the control circuit 1, so that the lamps for the vehicle are switched on and off. The start-stop circuit 6 is used to send start-stop signals to the control circuit 1 to control the start-up and stop of the test apparatus. The input/output device is used for exchanging information with the control circuit, and is generally a touch screen and is responsible for functions such as instruction sending, parameter setting, status display and the like. The setting of the stop circuit 6 is started, so that misoperation of an operator is prevented; the start of the test by the input-output device 7 is only possible after the start-stop circuit 6 sends a start signal to the control circuit 1. Wherein the content of the first and second substances,

the control circuit 1 comprises a PLC, a DQ module and an AI module, wherein the DQ module and the AI module are extension modules of the PLC; the PLC is S7-1200, the DQ module is SM1222, and the AI module is SM 1231.

The temperature detection circuit 3 includes a two-wire current transmitter, and both ends thereof are connected to the power supply circuit 2 and the PEW4 port of the AI module, respectively. Through the setting of temperature detection circuit 3, make control circuit can test according to the test temperature. For example, a graph of the temperature and the use state can be drawn according to the recorded temperature and the working state of the vehicle lamp; in addition, when the test is performed in a low temperature environment, for example, the vehicle lamp is placed in a refrigerator, and then, the temperature may not reach the test temperature at the beginning, the ambient temperature may be measured by the temperature detection circuit 3, the test is started after the tester sets the parameters through the input/output device 7 (at this time, the test is not actually started), and when the ambient temperature is measured by the temperature detection circuit 3 to reach the test temperature, the control circuit 1 starts to detect the vehicle lamp. Through the setting of temperature detect circuit 3, can practice thrift the manpower, when waiting for the environmental test temperature, the tester can go to operate other experiments, need not on duty and becomes at test equipment, waits until the environmental temperature reaches the back just to begin the experiment.

The current detection circuit 4 includes a two-wire current transmitter, and both ends of the current transmitter are connected to the PEW6 port, the PEW8 port, the PEW6 port, the PEW10 port, the PEW12 port, the PEW14 port, the PEW16 port, and the like of the power circuit 2 and the AI module, respectively. A plurality of current detection circuits 4 can be arranged at the same time, the current of the multi-path automobile lamp is monitored at the same time, and the test is carried out at the same time, so that the test efficiency is improved. If the analog port of the AI module is not enough, a plurality of AI modules can be added to increase the analog port, thereby satisfying the simultaneous monitoring of multiple paths of current.

The start-stop circuit 6 comprises a start button and a stop button, the two ends of the start button are respectively connected with the power circuits 2 and IX.1, and the two ends of the stop button are respectively connected with the power circuits 2 and IX.0. The control circuit 1 is given start and stop signals by a start button and a stop button.

QX.0, QX.1, QX.2, QX.3, QX.4, QX.5, A0.1, A0.2, A0.3, A0.4, A0.5, A0.6, A0.7 and A1.0 in the PLC and DQ modules in the control circuit 1 are connected with the intermediate relay module 5, the intermediate relay module 5 is controlled by the control circuit 1, wherein two interfaces are used for controlling an operation indicator lamp and a buzzer, and the rest can be used for controlling the vehicle lamp.

In one embodiment, the power supply further comprises an operation indicator light and a buzzer, two ends of the operation indicator light and the buzzer are respectively connected with the power supply circuit 2 and the intermediate relay module 5, and the control circuit 1 controls the actuation of the intermediate relay module 5 to control the connection and disconnection of the operation indicator light and the buzzer. The control circuit 1 can tell the tester that the detection is finished in the form of audible and visual alarm after the detection is finished.

Of course, a leakage protector is connected in series in the power supply circuit for the safety of the circuit to prevent the safety of a tester. Preferably, a key switch may be connected in series with the power circuit 2 to prevent an irrelevant person from operating the device.

The utility model discloses when using, following explains a kind of test mode to do not protect this kind of test mode, combine concrete operating procedure only in order to increase the advantage of the cooperation between the clear hardware. Specifically, the test of one path of vehicle lamp in a low-temperature environment is explained, wherein the low-temperature environment is set to be-10 ℃;

as shown in fig. 1 to 11, a lamp for a vehicle is connected to an interface of an intermediate relay module 5, a current of the lamp for a vehicle is monitored by a current detection circuit 4, a power supply circuit 2 is turned on to supply power to each circuit, and a temperature detection circuit 3 and the lamp for a vehicle are placed in a refrigerator to simulate a low-temperature environment. The starting button is pressed, parameter setting is carried out through the input and output equipment 7, then starting is carried out, and when the temperature detection circuit 3 detects that the ambient temperature reaches a preset value, the control circuit 1 automatically starts to detect the vehicle lamp. After the detection is finished, the control circuit 1 controls the operation indicator lamp and the buzzer to operate through the intermediate relay module 5 so as to remind a tester that the test is finished. Therefore, the detection of the vehicle lamp is realized through the matching of the circuits of the utility model; in addition, by adding the temperature detection circuit, the time of a tester is saved, and the detection data is more referential. And, through control circuit's cooperation, realize detecting a plurality of automobile-used lamps and lanterns simultaneously, improved detection efficiency.

The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is within the spirit and scope of the present invention.

Claims

1. A vehicle lamp durability testing device is characterized by comprising a control circuit, a power circuit, a temperature detection circuit, a current detection circuit, an intermediate relay module, a start-stop circuit and an input-output device, wherein the temperature detection circuit, the current detection circuit, the intermediate relay module, the start-stop circuit and the input-output device are connected with the control circuit, the power circuit provides power support, the temperature detection circuit is used for detecting the temperature of a testing environment, the current detection circuit is used for detecting the current of a vehicle lamp, the intermediate relay module is connected with the vehicle lamp through an interface, the control circuit is used for controlling the on-off of the power supply of the vehicle lamp through the intermediate relay module, the start-stop circuit sends start and stop signals to the control circuit to control the start and stop of the testing device, the input and output equipment is used for exchanging information with the control circuit.

2. The device for testing durability of vehicular lamp according to claim 1, wherein the temperature detection circuit comprises a two-wire temperature transmitter.

3. The device for testing durability of vehicular lamp according to claim 1, wherein the current detection circuit comprises a two-wire current transmitter.

4. The device for testing durability of vehicular lamp according to claim 1, wherein the control circuit comprises a PLC, a DQ module, and an AI module.

5. The device for testing durability of vehicular lamp according to claim 4, wherein the PLC is S7-1200, the DQ module is SM1222, and the AI module is SM 1231.

6. The device for testing the durability of the vehicular lamp according to claim 1, further comprising an operation indicator lamp and a buzzer, wherein the operation indicator lamp and the buzzer are connected with the intermediate relay module.

7. The device for testing durability of vehicular lamp according to claim 1, wherein said power supply circuit further comprises a leakage protector.

8. The device for testing durability of vehicular lamp according to claim 1, wherein said power circuit further comprises a key switch.