Road waterlogging monitoring sensor

Abstract

The utility model discloses a road ponding monitoring sensor, which comprises a sensor shell, a PCB (Printed Circuit Board), two monitoring electrodes and a cover plate, and is characterized in that the sensor shell comprises a connecting groove and a monitoring groove, and the connecting groove is connected with the monitoring groove through a partition plate; the PCB is fixedly arranged in the connecting groove, one end of each monitoring electrode is fixed to the PCB and electrically connected with the PCB, and the other end of each monitoring electrode penetrates through the partition plate and extends into the monitoring groove; the cover plate is connected to the opening position of the monitoring groove, a first hollow part is arranged on the cover plate, and the monitoring groove is communicated with the outside through the first hollow part. The two monitoring electrodes are arranged in the monitoring groove, the corresponding cover plate is arranged on the outer side of the monitoring groove, the first hollow part is arranged on the cover plate, the cover plate is matched with the monitoring groove to protect the monitoring electrodes, and meanwhile, the first hollow part is arranged, so that normal inlet and outlet of water flow can be ensured.

Description

Technical Field

[0001] The utility model relates to the field of vehicle-mounted sensors, in particular to a road water accumulation monitoring sensor. Background Art

[0002] At present, sensors installed on vehicles to monitor road water accumulation generally use two monitoring electrodes to detect whether there is water. The principle is to control the circuit through a relay. When the depth of water accumulation reaches a certain depth, the two probes are short-circuited, thereby transmitting the signal to the controller to achieve an alarm effect. The probes of existing sensors for detecting water accumulation leak out, and there is no protection against mud and sand splashing. Mud and sand splashing will cause mud and sand in the shell to stick to the probes and lose the monitoring function, and the area between the sticky probes will produce conductivity, leading to the risk of false alarms. Utility Model Content

[0003] In view of this, the utility model discloses a road water accumulation monitoring sensor, which can protect the exposed monitoring electrodes.

[0004] The utility model discloses a road water accumulation monitoring sensor, comprising a sensor housing, a PCB board, two monitoring electrodes and a cover plate, wherein:

[0005] The sensor housing comprises a connecting slot and a monitoring slot, wherein the connecting slot and the monitoring slot are connected via a partition; the PCB board is fixedly disposed in the connecting slot, one end of the two monitoring electrodes is fixed to the PCB board and electrically connected to the PCB board, and the other end of the monitoring electrode passes through the partition and extends into the monitoring slot;

[0006] The cover plate is connected to the opening position of the monitoring slot, and a first hollow portion is provided on the cover plate, through which the monitoring slot is connected to the outside.

[0007] Furthermore, water holes are respectively provided on the four side walls of the monitoring trough, and the monitoring trough is connected with the external environment through the water holes.

[0008] Furthermore, there are four first hollow portions on the cover plate, and the positions of the four first hollow portions correspond one-to-one to the positions of the four water holes.

[0009] Furthermore, the cover plate is provided with fixing feet, and the cover plate is fixedly connected to the sensor housing via the fixing feet so that the cover plate and the monitoring slot are spaced apart.

[0010] Furthermore, a stepped groove is provided in the connecting groove, and the PCB board is installed in the connecting groove through the stepped groove;

[0011] One end of the monitoring electrode passes through the PCB and is electrically connected to the PCB.

[0012] Furthermore, the outer surface of the monitoring electrode is provided with a gold-plated layer.

[0013] Furthermore, the sensor housing is made of hard aluminum alloy.

[0014] Furthermore, the sensor housing is provided with a mounting portion, and the mounting portion is provided with a mounting hole.

[0015] Compared with the prior art, the technical solution disclosed in the utility model has the following beneficial effects:

[0016] By arranging two monitoring electrodes in the monitoring slot and arranging a corresponding cover plate on the outside of the monitoring slot, a first hollow portion is arranged on the cover plate. The cover plate cooperates with the monitoring slot to protect the monitoring electrodes. At the same time, the first hollow portion is arranged to ensure the normal inflow and outflow of water. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the water accumulation monitoring sensor;

[0018] Figure 2 This is an exploded view of the water monitoring sensor;

[0019] Figure 3 A cross-sectional view of a water accumulation monitoring sensor.

[0020] Description of the attached drawings

[0021] 100. Water accumulation monitoring sensor; 10. Sensor housing; 11. Connection slot; 12. Monitoring slot; 13. Partition; 14. Through hole; 15. Step slot; 16. Water hole; 17. Mounting part; 18. Mounting hole; 20. PCB board; 21. Monitoring electrode; 30. Cover plate; 31. First hollow part; 32. Fixed foot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to another component, or there may be a central component at the same time. Unless otherwise defined, all technical and scientific terms used in this article have the same meaning as those generally understood by technicians in the technical field of the utility model. It should also be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances. The terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model.

[0023] It should also be noted that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] like Figures 1 to 3 As shown, the utility model discloses a road water accumulation monitoring sensor 100, including a sensor housing 10, a PCB board 20, and two monitoring electrodes 21. The PCB board 20 is arranged in the sensor housing 10, and the two monitoring electrodes 21 are fixed on the PCB board 20 and electrically connected to the PCB board 20. The realization principle of water accumulation monitoring is to control the circuit through a relay. When the depth of water accumulation reaches a certain depth, the two monitoring electrodes 21 are short-circuited, thereby transmitting the signal to the controller to realize signal transmission.

[0025] The sensor housing 10 includes a connecting slot 11 and a monitoring slot 12, wherein the connecting slot 11 and the monitoring slot 12 are connected via a partition 13, and the opening direction of the connecting slot 11 and the opening direction of the monitoring slot 12 are respectively facing opposite directions. In the present application, the PCB board 20 is fixedly disposed in the connecting slot 11, one end of the two monitoring electrodes 21 is fixed to the PCB board 20 and electrically connected to the PCB board 20, and the other end of the monitoring electrode 21 passes through the partition 13 and extends into the monitoring slot 12. When water enters the monitoring slot 12 and reaches a certain value, the two monitoring electrodes 21 may be short-circuited, thereby realizing the detection of accumulated water.

[0026] In the present application, a through hole 14 is provided on the partition 13 , and the monitoring electrode 21 passes through the partition 13 through the through hole 14 and enters into the monitoring slot 12 .

[0027] Furthermore, the sensor further includes a cover plate 30 , which is disposed at an opening position of the monitoring slot 12 , and the cover plate 30 cooperates with the monitoring slot 12 to protect the monitoring electrode 21 located in the monitoring slot 12 .

[0028] The cover plate 30 is provided with a first hollow portion 31 , and the monitoring tank 12 is connected to the outside through the first hollow portion 31 , and external water can enter or leave the monitoring tank 12 through the first hollow portion 31 .

[0029] Furthermore, water holes 16 are respectively provided on the four side walls of the monitoring slot 12, and the monitoring slot 12 is connected to the external environment through the water holes 16. There are four first hollow parts 31 on the cover plate 30, and the positions of the four first hollow parts 31 correspond to the positions of the four water holes 16. By providing the water holes 16 and the monitoring slot 12, water can enter or leave the monitoring slot 12 normally, ensuring the normal monitoring of the water level.

[0030] In the present application, there are four water holes 16 , which are respectively located on the four sides of the monitoring slot 12 . When water enters or leaves the monitoring slot 12 , water film is avoided to affect the sensing accuracy of the monitoring electrode 21 .

[0031] The cover plate 30 is provided with fixing feet 32 ​​, and the cover plate 30 is fixedly connected to the sensor housing 10 via the fixing feet 32 ​​so that the cover plate 30 and the monitoring slot 12 are spaced apart, further ensuring that water can enter or leave the monitoring slot 12 normally.

[0032] Furthermore, a stepped groove 15 is provided in the connection groove 11, and the PCB board 20 is installed in the connection groove 11 through the stepped groove 15; one end of the monitoring electrode 21 passes through the PCB board 20 and is electrically connected to the PCB board 20. In the present application, the PCB board 20 can be fixed in the stepped groove 15 in the connection groove 11 by screw fixing, clamping or bonding, so as to realize the normal fixing of the PCB board 20.

[0033] Furthermore, in the present application, the monitoring electrode 21 is a probe made of copper material, and a gold-plated layer is provided on the outer surface of the monitoring electrode 21. By providing the gold-plated layer, oxidation of the monitoring electrode 21 is reduced, thereby avoiding reduction in monitoring accuracy.

[0034] Furthermore, the sensor housing 10 is made of hard aluminum alloy, which improves the strength of the sensor housing 10 and prevents sand and gravel from damaging the sensor housing 10 and damaging the internal PCB board 20 and monitoring electrode 21, etc.

[0035] The sensor housing 10 is provided with a mounting portion 17 , and the mounting portion 17 is provided with a mounting hole 18 . The sensor housing 10 can be installed at a preset position of the vehicle through the mounting hole 18 .

[0036] The present invention can be implemented in various ways and modified without departing from the broad spirit and scope of the present invention. The above-mentioned embodiments are used to illustrate the present invention, but do not limit the scope of the present invention.

Claims

1. A road water monitoring sensor, characterized in that: It includes a sensor housing, a PCB board, two monitoring electrodes and a cover plate, wherein: The sensor housing comprises a connecting slot and a monitoring slot, wherein the connecting slot and the monitoring slot are connected via a partition; the PCB board is fixedly disposed in the connecting slot, one end of the two monitoring electrodes is fixed to the PCB board and electrically connected to the PCB board, and the other end of the monitoring electrode passes through the partition and extends into the monitoring slot; The cover plate is connected to the opening position of the monitoring slot, and a first hollow portion is provided on the cover plate, through which the monitoring slot is connected to the outside.

2. A road water accumulation monitoring sensor according to claim 1, characterized in that: Water holes are respectively arranged on the four side walls of the monitoring trough, and the monitoring trough is communicated with the outside through the water holes.

3. A road water accumulation monitoring sensor according to claim 2, characterized in that: There are four first hollow parts on the cover plate, and the positions of the four first hollow parts correspond one-to-one to the positions of the four water holes.

4. A road water accumulation monitoring sensor according to claim 1, characterized in that: The cover plate is provided with fixing feet, and the cover plate is fixedly connected to the sensor housing through the fixing feet so that the cover plate and the monitoring slot are spaced apart.

5. A road water accumulation monitoring sensor according to claim 1, characterized in that: A stepped groove is provided in the connecting groove, and the PCB board is installed in the connecting groove through the stepped groove; One end of the monitoring electrode passes through the PCB and is electrically connected to the PCB.

6. A road water accumulation monitoring sensor according to claim 1, characterized in that: The outer surface of the monitoring electrode is provided with a gold-plated layer.

7. A road water monitoring sensor according to claim 1, characterized in that: The sensor housing is made of hard aluminum alloy.

8. A road water monitoring sensor according to claim 1, characterized in that: The sensor housing is provided with a mounting portion, and the mounting portion is provided with a mounting hole.

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