Electrification aging test device for electronic guideboard
By designing an electronic street sign power-on aging test device including an electrical control cabinet and an aging experiment cabinet, the problem that the existing aging test chamber cannot effectively detect the quality of the electronic street sign is solved, and the simulation detection of the vibration, temperature and electrical signal environment of the electronic street sign is realized, ensuring the safety of the product.
Patent Information
- Application Number
- CN202420595700.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-03-26
AI Technical Summary
The existing aging test chamber is not suitable for the detection of electronic street signs, and cannot effectively simulate its vibration, temperature and electrical signal environment when it is running in a vehicle, resulting in the inability to effectively detect the quality of electronic street signs.
An electronic street sign power-on aging test device is designed, including an electrical control cabinet and an aging test cabinet. The aging experiment cabinet simulates the vibration, temperature and electrical signal environment of electronic street signs when running in a vehicle through a vibrating frame, heating module, temperature sensor and electrical control system.
This device can effectively simulate the actual working status of electronic street signs, detect its quality, and select unqualified products to avoid unqualified products coming onto the vehicle and causing vehicle safety hazards.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of vehicle accessories testing equipment, and in particular relates to an electronic road sign power-on aging test device. Background Art
[0002] Electronic road signs can be used on buses, coaches, coaches and other transportation vehicles to display the route and starting and ending stations of the vehicle so that passengers can identify and prepare to board the vehicle in time. During use, electronic road signs always work with the vibration of the vehicle, and in summer, the working temperature can reach 60℃, and the working environment is relatively harsh. Therefore, before electronic road signs are installed on the vehicle, they need to be quality tested to avoid unqualified products on the vehicle and cause vehicle safety hazards.
[0003] Moreover, the quality inspection of electronic road signs needs to simulate their actual working state, that is, under the vibration condition of simulating vehicle operation, the power-on and vibration frequencies are set according to the rated voltage and current of the electronic road signs, combined with the service life of the electronic road signs, and the appropriate inspection temperature is set to simulate the high temperature working environment in summer. However, the existing aging test chamber is not suitable for the inspection of electronic road signs, so it is necessary to design an aging test device suitable for electronic road signs. Utility Model Content
[0004] The utility model aims to provide an electronic road sign power-on aging test device, which can detect the quality of the electronic road sign by simulating the actual working state of the electronic road sign, thereby avoiding safety hazards caused by unqualified products on vehicles.
[0005] In order to achieve the above-mentioned purpose, the scheme of the utility model is as follows: an electronic road sign power-on aging test device, including an electrical control cabinet and an aging test cabinet, the aging test cabinet includes a cabinet body and a cabinet door, a vibration frame is arranged in the cabinet body, the bottom end of the vibration frame is fixedly connected with a through-axis, a bearing is fixedly installed on the bottom wall of the cabinet body, the through-axis is coaxially fixedly connected with the bearing, a driving member for driving the vibration frame to swing is fixedly installed in the cabinet body, and a temperature sensor and a plurality of heating modules are also arranged in the cabinet body; the vibration frame includes a vertical plate, a side plate and a plurality of horizontal plates, the side plates are fixedly connected to the two sides of the vertical plate, if The dry horizontal plate is fixedly connected to the vertical plate from top to bottom, the horizontal plate is used to place the electronic road sign, and the vibration frame is also provided with a power supply for the electronic road sign and an electrical connector that can be electrically connected to the electronic road sign; the electrical control cabinet is equipped with a power switch, a heating switch for controlling the opening and closing of the heating module, a pulse switch for controlling the power on and off of the electronic road sign, a vibration switch for controlling the opening and closing of the driving part, a pulse time controller for controlling the power on and off time of the electronic road sign, a vibration time controller for controlling the opening and closing time of the driving part, and a temperature controller for controlling the temperature inside the cabinet.
[0006] The working principle and beneficial effect of this scheme are as follows: in this scheme, the vibration frame and the cabinet are connected to each other by a through-shaft and a bearing, and under the drive of the driving member, the vibration frame can swing left and right in the cabinet to simulate the vibration during the operation of the vehicle, and the left and right swing frequency of the vibration frame can be adjusted and controlled by the vibration time controller, so that the detection personnel can adjust the simulated vibration frequency of the electronic road sign as needed. In addition, in this scheme, the temperature inside the cabinet is controlled by a heating module, a temperature sensor and a temperature controller to realize the high temperature environment simulation of the electronic road sign. Moreover, in this scheme, the power-on and power-off time of the electronic road sign is controlled by a pulse time controller, so that the detection personnel can adjust the pulse time of the electronic road sign as needed. In this way, this scheme can simulate working conditions with different vibration frequencies, different ambient temperatures and different pulse times, and detect the quality of the electronic road sign under the corresponding working conditions, realize the aging test of the electronic road sign, screen out unqualified products, and avoid unqualified products on the vehicle causing vehicle safety hazards.
[0007] Optionally, the driving member is a cylinder, an output end of the cylinder is fixedly connected to a ring, a side plate close to the cylinder is fixedly connected to a driving rod, and an end of the driving rod away from the side plate passes through the ring.
[0008] In this solution, the cylinder drives the ring to rise and fall regularly. Since the driving rod passes through the ring, the driving rod rises and falls regularly under the drive of the ring, thereby driving the vibration frame to swing left and right regularly.
[0009] Optionally, a clamping assembly for fixing the electronic road sign is fixedly connected to the transverse plate, and the clamping assembly includes a vertical quick caliper and a clamping plate, and the clamping plate is fixedly connected to the screw of the vertical quick caliper.
[0010] In this solution, the electronic road sign is pressed against the vertical plate by using a pressing component to prevent the electronic road sign from being damaged by vibrating up and down relative to the horizontal plate during vibration.
[0011] Optionally, a cooling fan is fixedly mounted on the inner wall of the cabinet.
[0012] In this solution, a cooling fan is used to dissipate the heat in the cabinet to the entire cabinet, simulating the high temperature environment of the electronic road sign on the car.
[0013] Optionally, a voltage display screen for displaying the power-on voltage of the electronic road sign is installed on the electrical control cabinet.
[0014] In this solution, the voltage display screen can display the voltage of the electronic road sign after it is powered on, so that the test personnel can judge whether the voltage of the electronic road sign is normal during the aging test.
[0015] Optionally, a voltage start switch and a voltage stop switch are installed on the electrical control cabinet.
[0016] In this solution, after the power switch is closed, the device is powered on. After the inspector presses the voltage start switch, some components are powered on and work again, which is safer.
[0017] Optionally, an aging time controller for controlling the aging time is installed on the electrical control cabinet.
[0018] In this solution, the aging test time can be set by the aging time controller. After the preset aging test time is reached, the aging time controller controls the heating module and the driving component to stop working, and controls the electronic road sign to power off, thereby ending the aging test.
[0019] Optionally, the aging time controller has a time display screen I for displaying the operating time of the device.
[0020] In this solution, the testing personnel can understand the duration of the aging test through the time display screen Ⅰ.
[0021] Optionally, the pulse time controller has a time display screen II for displaying power-on time and power-off time, and the temperature controller has a temperature display screen for displaying the internal temperature of the cabinet.
[0022] In this solution, the inspector can know whether the electronic road sign is powered on or off through the time display screen II, and can know the temperature inside the cabinet through the temperature display screen.
[0023] Optionally, an observation window is provided on the cabinet door, and a transparent plate for sealing the observation window is fixedly installed at the observation window.
[0024] In this solution, inspectors can observe the internal conditions of the cabinet through the transparent plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is a schematic diagram of the structure of the electronic road sign power-on aging test device in the first embodiment of the utility model;
[0026] Figure 2 This is a schematic structural diagram of the aging test cabinet in the first embodiment of the utility model with the cabinet door hidden;
[0027] Figure 3 for Figure 2 A left side view of the middle tightening assembly;
[0028] Figure 4 It is a structural schematic diagram of the electrical control cabinet in the second embodiment of the utility model. DETAILED DESCRIPTION
[0029] The following is further described in detail through specific implementation methods:
[0030] The marks in the drawings of the specification include: electrical control cabinet 1, aging test cabinet 2, cabinet body 210, cabinet door 220, transparent plate 3, vibration frame 4, vertical plate 401, side plate 402, horizontal plate 403, through-axis 5, bearing 6, driving part 7, ring 8, driving rod 9, electrical connector 10, vertical quick caliper 11, screw 111, clamping plate 12, temperature sensor 13, heating module 14, cooling fan 15, power switch 16, voltage start switch 17, voltage stop switch 18, heating switch 19, pulse switch 20, vibration switch 21, pulse time controller 22, vibration time controller 23, temperature controller 24, voltage display screen 25, aging time controller 26.
[0031] Embodiment 1
[0032] This embodiment is basically Figure 1 and Figure 2 As shown: the electronic road sign power-on aging test device includes an electrical control cabinet 1 and an aging test cabinet 2. The aging test cabinet 2 includes a cabinet body 210 and a cabinet door 220. The cabinet door 220 is provided with an observation window, and a transparent plate 3 for sealing the observation window is fixedly installed at the observation window. A vibration frame 4 is provided in the cabinet body 210. A through-axis 5 is welded at the center position of the bottom end of the vibration frame 4. The through-axis 5 is arranged along the width direction of the vibration frame 4. A bearing 6 is fixedly installed on the bottom wall of the cabinet body 210 by bolts. The through-axis 5 is coaxially fixedly connected with the bearing 6. There are two bearings 6, and the two bearings 6 are respectively located at the two ends of the through-axis 5. In this way, the vibration frame 4 can swing left and right in the cabinet body 210 with the through-axis 5 as the axis. A driving member 7 for driving the vibration frame 4 to swing is fixedly installed in the cabinet 210. In this embodiment, the driving member 7 is a cylinder, and a ring 8 is fixedly connected to the output end of the driving member 7. A driving rod 9 is welded to the side of the vibration frame 4 close to the ring 8, and the end of the driving rod 9 away from the vibration frame 4 passes through the ring 8.
[0033] The vibration frame 4 includes a vertical plate 401, a side plate 402 and a plurality of horizontal plates 403. The side plates 402 are welded to both sides of the vertical plate 401. The plurality of horizontal plates 403 are welded to the vertical plate 401 from top to bottom. The horizontal plates 403 are used to place electronic road signs. In this embodiment, there are seven horizontal plates 403. In this way, the driving rod 9 is welded to the side plate 402 on the left side, and the through-axis 5 is welded to the bottom surface of the horizontal plate 403 located at the bottom layer. The vibration frame 4 is also provided with a power supply for supplying power to the electronic road sign and an electrical connector 10 that can be electrically connected to the electronic road sign. In this embodiment, there are six power supplies and six electrical connectors 10. The power supply is located on the back of the vertical plate 401. In this way, each electronic road sign has an independent power supply. A tightening assembly for fixing the electronic road sign is fixedly connected to the horizontal plate 403. In combination with the Figure 3As shown, the clamping assembly includes a vertical quick caliper 11 and a clamping plate 12. The clamping plate 12 is fixedly connected to the screw 111 of the vertical quick caliper 11. The vertical quick caliper 11 is installed on the horizontal plate 403 by bolts. In this embodiment, the vertical quick caliper 11 uses a quick clamp with model ZS-10247.
[0034] The cabinet 210 is provided with a temperature sensor 13 and a plurality of heating modules 14. The temperature sensor 13 is located on the rear inner wall of the cabinet 210. In this embodiment, the number of heating modules 14 is 16. The 16 heating modules 14 are distributed on the left inner wall and the right inner wall of the cabinet 210 in a group of two, and there are four groups on the left inner wall and the right inner wall. The heating modules 14 are electric heaters. The left inner wall and the right inner wall of the cabinet 210 are both equipped with cooling fans 15 by bolts.
[0035] The electrical control cabinet 1 is equipped with a power switch 16, a voltage start switch 17, a voltage stop switch 18, a heating switch 19 for controlling the opening and closing of the heating module 14, a pulse switch 20 for controlling the power on and off of the electronic road sign, a vibration switch 21 for controlling the opening and closing of the driving member 7, a pulse time controller 22 for controlling the power on and off time of the electronic road sign, a vibration time controller 23 for controlling the opening and closing time of the driving member 7, a temperature controller 24 for controlling the internal temperature of the cabinet 210, and a voltage display screen 25 for displaying the power-on voltage of the electronic road sign. The pulse time controller 22 has a time display screen II for displaying the power on time and the power off time of the electronic road sign, and the temperature controller 24 has a temperature display screen for displaying the internal temperature of the cabinet 210. In this embodiment, the model of the pulse time controller 22 is DH48S-S (JS48S-S), the model of the vibration time controller 23 is DH48S-S (JS48S-S), and the model of the temperature controller 24 is XMTD-2002.
[0036] When in use, open the cabinet door 220 of the aging test cabinet 2, then place the electronic road sign to be tested on the horizontal plate 403, and use the tightening assembly to tighten the electronic road sign on the vertical plate 401. At this time, the tightening plate 12 is attached to the electronic road sign to fix the electronic road sign. Then, after connecting the corresponding electrical connector 10 to the electronic road sign, close the cabinet door 220. Then, close the power switch 16 on the electrical control cabinet 1, the entire device is powered on, the voltage display screen 25 is powered on, and at the same time, the cooling fan 15 is powered on to work, so as to form airflow in the cabinet 1; then, the inspector turns on the voltage start switch 17, and then turns on the heating switch 19, the pulse switch 20 and the vibration switch 21, so that the pulse time controller 22, the vibration time controller 23, the temperature controller 24, the heating module 14 in the cabinet 210, the electronic road sign and the drive member 7 are powered on.
[0037] Then, the inspector can set the power-on time and power-off time of the electronic road sign through the pulse time controller 22. In this embodiment, the power-on time of the electronic road sign is 35s, the power-off time is 2s, and the power is cycled on and off in this way; and the inspector can set the opening and closing time of the driving member 7 through the vibration time controller 23. In this embodiment, the working time of the driving member 7 is 4s, and the stopping time is 4s, that is, the driving member 7 works for 4s and then pauses for 4s before continuing to work; In addition, the inspector can set the working temperature in the cabinet 210 through the temperature controller 24. In this embodiment, the working temperature in the cabinet 210 is set to 60°C. The temperature sensor 13 detects the working temperature in the cabinet 210 and converts the detected temperature into an electronic signal and transmits it to the temperature controller 24. The temperature controller 24 controls the heating module 14 to work according to the received electronic signal, so that the temperature in the cabinet 210 can be stabilized at about 60°C. In addition, during the operation of the heating module 14, the cooling fan 15 causes the air in the cabinet 1 to flow, thereby dissipating the heat in the cabinet 1 to the entire cabinet 1.
[0038] During the operation of the driving member 7, the ring 8 is first driven to rise, and the ring 8 pushes the driving rod 9 to move upward (there is a gap between the ring 8 and the driving rod 9, which provides space for the driving rod 9 to move relative to the ring 8), so that the left end of the vibration frame 4 is lifted upward by the upward thrust, and the right end of the vibration frame 4 moves downward; then, the driving member 7 drives the ring 8 down, and the driving rod 9 moves downward with the ring 8, so that the left end of the vibration frame 4 moves downward, and the right end of the vibration frame 4 moves upward; in this way, the left and right swing of the vibration frame 4 is realized, thereby simulating the vibration of the electronic road sign on the vehicle. After the temperature in the cabinet 210 rises to 60°C, the working condition of the electronic road sign on the vehicle during the high temperature period in summer is simulated, and the aging test of the electronic road sign is officially started.
[0039] Moreover, during the above-mentioned aging test, the inspector can grasp the power-on voltage of the electronic road sign through the voltage display screen 25; grasp whether the electronic road sign is in a power-on or power-off state through the time display screen II on the pulse time controller 22, and judge whether the electronic road sign is working normally in combination with the actual power-on and power-off status of the electronic road sign in the cabinet 210 (whether the electronic road sign is lit); grasp the working temperature in the cabinet 210 through the temperature display screen of the temperature controller 24.
[0040] After the aging test is completed, the inspector first turns off the heating switch 19, the pulse switch 20 and the vibration switch 21, the heating module 14, the electronic road sign and the drive member 7 are powered off and no longer work, the vibration frame 4 is stationary, and then the voltage stop switch 18 is pressed, and finally the power switch 16 is turned off, the cooling fan 15 is powered off and stops working, and the device is completely powered off. Then, the inspector opens the cabinet door 220 and takes out the electronic road sign.
[0041] In summary, this embodiment can simulate working conditions with different vibration frequencies, different ambient temperatures and different pulse times, and detect the quality of electronic road signs under corresponding working conditions, implement aging tests on electronic road signs, screen out unqualified products, and avoid unqualified products being put on the vehicle and causing vehicle safety hazards.
[0042] Embodiment 2
[0043] The difference between this embodiment and the first embodiment is that: Figure 4 As shown, an aging time controller 26 for controlling the aging time is installed on the electrical control cabinet 1. When the device operation time reaches the preset time of the aging time controller 26, the aging time controller 26 controls the heating module 14 and the driving member 7 to stop working, and controls the electronic road sign to be powered off. The aging time controller 26 has a time display screen I for displaying the device operation time. In this embodiment, the model of the aging time controller 26 is DH48S (JS48S).
[0044] In this embodiment, after the voltage start switch 17 is turned on, the aging time controller 26 is powered on. After the heating switch 19, the pulse switch 20 and the vibration switch 21 are turned on, the inspector adjusts the aging time on the aging time controller 26, such as 3 hours. After the aging test is performed for 3 hours, the aging time controller 26 controls the heating module 14 and the driving member 7 to stop working, and controls the electronic road sign to be powered off, and the aging test ends. The inspector does not need to manually end the aging test, thereby avoiding the aging test exceeding the preset time.
[0045] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the utility model. The specific implementation methods and other records in the specification can be used to explain the content of the claims.
Claims
1. The electronic road sign power-on aging test device includes an electrical control cabinet and an aging test cabinet, which is characterized by: The aging test cabinet comprises a cabinet body and a cabinet door, a vibration frame is arranged in the cabinet body, a through-axis is fixedly connected to the bottom end of the vibration frame, a bearing is fixedly installed on the bottom wall of the cabinet body, the through-axis is coaxially fixedly connected to the bearing, a driving member for driving the vibration frame to swing is fixedly installed in the cabinet body, and a temperature sensor and a plurality of heating modules are also arranged in the cabinet body; the vibration frame comprises a vertical plate, a side plate and a plurality of horizontal plates, the side plates are fixedly connected to both sides of the vertical plate, and the plurality of horizontal plates are fixedly connected to the vertical plate from top to bottom, the horizontal plate is used to place the electronic road sign, and the vibration frame is also provided with a power supply for powering the electronic road sign and an electrical connector that can be electrically connected to the electronic road sign; the electrical control cabinet is equipped with a power switch, a heating switch for controlling the opening and closing of the heating module, a pulse switch for controlling the power on and off of the electronic road sign, a vibration switch for controlling the opening and closing of the driving member, a pulse time controller for controlling the power on and off time of the electronic road sign, a vibration time controller for controlling the opening and closing time of the driving member, and a temperature controller for controlling the temperature inside the cabinet body.
2. The electronic road sign power-on aging test device according to claim 1 is characterized in that: The driving member is a cylinder, the output end of the cylinder is fixedly connected with a circular ring, a side plate close to the cylinder is fixedly connected with a driving rod, and an end of the driving rod away from the side plate passes through the circular ring.
3. The electronic road sign power-on aging test device according to claim 1 is characterized in that: The horizontal plate is fixedly connected with a clamping assembly for fixing the electronic road sign. The clamping assembly comprises a vertical quick caliper and a clamping plate. The clamping plate is fixedly connected to the screw of the vertical quick caliper.
4. The electronic road sign power-on aging test device according to claim 1 is characterized in that: A heat dissipation fan is fixedly installed on the inner side wall of the cabinet.
5. The electronic road sign power-on aging test device according to claim 1 is characterized in that: The electrical control cabinet is provided with a voltage display screen for displaying the power-on voltage of the electronic road sign.
6. The electronic road sign power-on aging test device according to claim 1 is characterized in that: A voltage start switch and a voltage stop switch are installed on the electrical control cabinet.
7. The electronic road sign power-on aging test device according to claim 1 is characterized in that: An aging time controller for controlling the aging time is installed on the electrical control cabinet.
8. The electronic road sign power-on aging test device according to claim 7 is characterized in that: The aging time controller has a time display screen I for displaying the running time of the device.
9. The electronic road sign power-on aging test device according to claim 1 is characterized in that: The pulse time controller has a time display screen II for displaying power-on time and power-off time, and the temperature controller has a temperature display screen for displaying the temperature inside the cabinet.
10. The electronic road sign power-on aging test device according to claim 1 is characterized in that: An observation window is arranged on the cabinet door, and a transparent plate for sealing the observation window is fixedly installed at the observation window.