Wading monitoring pressure sensor

Abstract

The utility model relates to a wading monitoring pressure sensor, which comprises a base used for being connected with a vehicle, a medium channel is arranged on the base, a pressure chip is arranged in the base and located at the tail end of the medium channel, and the pressure chip is used for detecting medium pressure; the trimming circuit board is arranged in the base, and the pressure chip is electrically connected with the trimming circuit board; and the cable is used for connecting the trimming circuit board and the vehicle machine so as to transmit electric signals. A pressure chip and a trimming circuit board are integrated on a base, and the base is connected with a vehicle. The measuring medium is transmitted to the pressure chip through the medium channel, the pressure chip detects the pressure of the medium, the pressure chip converts the detected pressure of the medium into an electric signal, the electric signal is processed by the trimming circuit board and then transmitted to the vehicle machine through the cable, the vehicle machine converts the collected electric signal into the fording depth, and therefore a driver is warned. A driver can judge the fording depth in advance, and safety accidents are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensor technical field especially relates to a wading monitoring pressure sensor. BACKGROUND

[0002] At present, wading monitoring pressure sensor is widely used in ocean exploration, tap water factory, automobile and other fields, and its main function is to convert water pressure into electrical signal output to monitor water level change. Its main feature is that the reliability, stability and corrosion resistance are relatively high. However, when the vehicle drives to the wading road, the driver often cannot directly judge the depth of wading, cannot predict the danger of the road ahead, thereby leading to safety accidents. SUMMARY

[0003] In view of the above-mentioned defects of the prior art, the utility model aims at providing a wading monitoring pressure sensor, which solves the problem that the driver often cannot directly judge the depth of wading when the vehicle drives to the wading road, cannot predict the danger of the road ahead, thereby leading to safety accidents.

[0004] To achieve the above-mentioned purpose and other related purposes, the utility model provides a wading monitoring pressure sensor, which comprises:

[0005] A base is used for connecting with the vehicle, a medium channel is arranged on the base, a pressure chip is arranged inside the base and at the end of the medium channel, and the pressure chip is used for detecting medium pressure.

[0006] A trimming circuit board is arranged in the base, and the pressure chip is electrically connected with the trimming circuit board.

[0007] A cable is used for connecting the trimming circuit board with the vehicle machine to transmit electrical signal.

[0008] Optionally, the base comprises a body, a joint and a connecting pipe, a medium inlet is arranged on the body, a first channel is arranged on the joint, a second channel is arranged on the connecting pipe, the medium inlet, the first channel and the second channel are communicated to form the medium channel.

[0009] Optionally, the pressure chip is arranged at one end of the connecting pipe close to the trimming circuit board in the axial direction, and the pressure chip blocks the medium channel, and one side surface of the pressure chip is communicated with the medium channel.

[0010] Optionally, the pressure chip is connected with the trimming circuit board through a binding wire.

[0011] Optionally, a protective cover is arranged on the trimming circuit board, and the protective cover is arranged around the connecting point of the pressure chip and the trimming circuit board.

[0012] Optionally, the protective cover is provided with a through hole.

[0013] Optionally, the other side surface of the pressure chip is coated with a protective layer.

[0014] Optionally, a bushing is symmetrically arranged on the body, and the bushing is used to connect with the vehicle.

[0015] Optionally, at least one axial limiting portion is arranged on the outer surface of the bushing and the joint in the axial direction.

[0016] Optionally, a cover body is further included, the cover body is connected with the base, and is used to seal the tuning circuit board; and the cable passes through the cover body to connect the tuning circuit board and the vehicle machine.

[0017] As described above, the application has the following beneficial effects: the base is connected with the vehicle by integrating the pressure chip and the tuning circuit board on the base. The measuring medium is transmitted to the pressure chip through the medium channel, the medium pressure is detected by the pressure chip, the detected medium pressure is converted into an electrical signal by the pressure chip, and the electrical signal is transmitted to the vehicle machine through the cable after being processed by the tuning circuit board. The vehicle machine converts the collected electrical signal into the wading depth, so as to warn the driver, and the driver can judge the wading depth in advance, thereby avoiding safety accidents. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structure schematic diagram of the wading monitoring pressure sensor is shown.

[0019] Figure 2 A cross-sectional structure schematic diagram of the wading monitoring pressure sensor is shown.

[0020] Figure 3 A cross-sectional structure schematic diagram of the wading monitoring pressure sensor is shown. Figure 2 A cross-sectional structure schematic diagram of the wading monitoring pressure sensor is shown.

[0021] MARKS DESCRIPTION

[0022] The body 101, the medium inlet 101a, the joint 102, the first channel 102a, the connecting pipe 103, the second channel 103a, the pressure chip 2, the tuning circuit board 3, the cable 4, the binding wire 5, the protective cover 6, the through hole 601, the bushing 7, the axial limiting portion 8, and the cover body 9. DETAILED DESCRIPTION

[0023] The embodiments of the present application will be described in detail by specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification. The present application can also be implemented or applied in other different specific embodiments, and various modifications or changes can be made to the details in the specification without departing from the spirit of the present application.

[0024] Please refer to Figures 1 to 3 It should be noted that the drawings provided in the embodiments only illustrate the basic concept of the present application in a schematic manner, and only the components related to the present application are shown in the drawings, not the number, shape and size of the components when actually implemented. The actual implementation of each component may be changed arbitrarily, and the component layout may be more complex. The structure, proportion, size, etc. shown in the drawings of the specification are only used to understand and read the content disclosed in the specification for those skilled in the art, and are not used to limit the implementation conditions of the present application. Therefore, any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" in the specification are only for the convenience of clear understanding, not for limiting the scope of the present application. The change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the scope of the present application.

[0025] Before the embodiments of the present application are described in detail, the application environment of the present application is described. The technology of the present application is mainly applied to the field of sensor technology. The present application is used to solve the problem that the driver cannot directly judge the depth of the water when the vehicle drives on the water road, cannot predict the danger of the road ahead, and thus causes safety accidents.

[0026] Please refer to Figures 1 to 3 The present application provides a water monitoring pressure sensor.

[0027] In an exemplary embodiment of the present application, the water monitoring pressure sensor comprises:

[0028] The base is used to connect with the vehicle, and the medium channel is arranged on the base. The pressure chip 2 is arranged inside the base and at the end of the medium channel, and the pressure chip 2 is used to detect the medium pressure.

[0029] The trimming circuit board 3 is arranged in the base, and the pressure chip 2 is electrically connected with the trimming circuit board 3.

[0030] Cable 4, for connecting the trimming circuit board 3 and the vehicle machine, to transmit electrical signals.

[0031] In the embodiment, the base is integrated with the pressure chip 2 and the trimming circuit board 3, and is connected with the vehicle. The medium is transmitted to the pressure chip 2 through the medium channel, the medium pressure is detected by the pressure chip 2, the detected medium pressure is converted into an electrical signal by the pressure chip 2, and the electrical signal is transmitted to the vehicle machine through the trimming circuit board 3 and the cable 4. The vehicle machine converts the collected electrical signal into the wading depth, so as to warn the driver and enable the driver to judge the wading depth in advance and avoid safety accidents.

[0032] In an example embodiment of the present application, the base comprises a body 101, a joint 102, and a connecting pipe 103. The body 101 is provided with a medium inlet 101a. The joint 102 is provided with a first channel 102a. The connecting pipe 103 is provided with a second channel 103a. The medium inlet 101a, the first channel 102a, and the second channel 103a are communicated to form a medium channel.

[0033] In the embodiment, the base is the basis of the entire wading monitoring sensor package. The base comprises a body 101, a joint 102, a connecting pipe 103, and a bushing 7. The joint 102 and the connecting pipe 103 are fixed by welding and are both made of metal. The bushing 7 is used to connect with the vehicle body through locking members (such as bolts). The body 101 is made of plastic. The joint 102, the connecting pipe 103, and the bushing 7 are integrally embedded and injection molded with the body 101. An installation space is formed in the base to install components such as the trimming circuit board 3.

[0034] In an example embodiment of the present application, the pressure chip 2 is arranged at one end of the connecting pipe 103 close to the trimming circuit board 3 in the axial direction, and blocks the medium channel. One side surface of the pressure chip 2 is communicated with the medium channel.

[0035] In the embodiment, the pressure chip 2 is adhered to one end of the connecting pipe 103 close to the trimming circuit board 3 in the axial direction. The pressure chip 2 blocks the medium channel to separate the medium channel and the installation space, so as to prevent the medium from entering the installation space and damaging the trimming circuit board 3.

[0036] In an example embodiment of the present application, the pressure chip 2 and the trimming circuit board 3 are connected through the binding wire 5.

[0037] In the embodiment, the pins of the pressure chip 2 are connected with the pad circuit on the trimming circuit board 3 through the binding wire 5.

[0038] In an example embodiment of the present application, the trimming circuit board 3 is provided with a protective cover 6. The protective cover 6 is arranged around the connection point of the pressure chip 2 and the trimming circuit board 3.

[0039] In the embodiment, the protective cover 6 is adhered outside the pressure chip 2 and the trimming circuit board 3, a protective layer is formed around the pressure chip 2 and the trimming circuit board 3 through the protective cover 6, and the risk of damage to the pressure chip 2 and the trimming circuit board 3 is further reduced.

[0040] In an example embodiment of the present application, the protective cover 6 is provided with a through hole 601.

[0041] In the embodiment, the through hole 601 is arranged on the protective cover 6, the pressure chip 2 is in communication with the atmosphere, and the influence of atmospheric fluctuations on the measurement accuracy of the water immersion monitoring pressure sensor is eliminated.

[0042] In an example embodiment of the present application, the other side surface of the pressure chip 2 is coated with a protective layer.

[0043] In the embodiment, the protective layer is coated on the side surface of the pressure chip 2 close to the trimming circuit board 3, so as to isolate the water vapor in the atmosphere from damaging the pressure chip 2.

[0044] In an example embodiment of the present application, the body 101 is symmetrically provided with a bushing 7, and the bushing 7 is used to be connected with the vehicle.

[0045] In the embodiment, the bushing 7 is used to pass through a locking member to be connected with the vehicle, so as to fixedly install the sensor with the vehicle body.

[0046] In an example embodiment of the present application, the outer surface of the bushing 7 and the joint 102 is provided with at least one axial limiting portion 8 in the axial direction.

[0047] In the embodiment, the outer surface of the bushing 7 and the joint 102 is provided with two annular grooves in the axial direction, and when the bushing 7 and the joint 102 are integrally embedded in the body 101 by injection molding, the body 101 can form a concave-convex matching clamping structure between the bushing 7 and the joint 102, so as to axially limit the bushing 7 and the joint 102, and prevent the bushing 7 and the joint 102 from moving in the axial direction.

[0048] It is worth noting that the axial limiting portion 8 provided on the outer surface of the bushing 7 and the joint 102 can also be an annular protrusion, so that when the bushing 7 and the joint 102 are integrally embedded in the body 101 by injection molding, an annular groove is formed on the body 101, and the annular protrusion and the annular groove are concave-convex matched, so as to axially limit the bushing 7 and the joint 102.

[0049] In an example embodiment of the present application, a cover body 9 is further included, the cover body 9 is connected with the base, is used to seal the trimming circuit board 3, and the cable 4 passes through the cover body 9 to connect the trimming circuit board 3 with the vehicle machine.

[0050] In the embodiment, the cover 9 is fixed by gluing after being clamped with the body 101, and the cover 9 is connected with the body 101 to close the mounting space. The cover 9 is provided with a through hole for the cable 4 to pass through. The cable 4 is connected with the tuning circuit board 3 by soldering. The cable 4 is provided with an output terminal for connecting with the vehicle machine. The tuning circuit board 3 is connected with the vehicle machine through the output terminal. The cable 4 is glued with the cover 9 at the through hole position to form an integral whole. The cable 4 is a vented cable, which is provided with a vent hole for communicating with the atmosphere. The pressure chip 2 communicates with the atmosphere through the through hole 601 of the protection cover 6 and the vent hole of the cable 4, so as to prevent the influence of atmospheric pressure fluctuation on the measurement accuracy of the wading pressure sensor.

[0051] The working principle is that when the wading monitoring pressure sensor contacts or is immersed in the accumulated water, the pressure of the accumulated water is transmitted to the back cavity of the pressure chip 2 through the medium inlet 101a protruding from the bottom of the base, the first channel 102a of the joint 102 and the second channel 103a of the connecting pipe 103. The pressure chip 2 converts the pressure signal of the accumulated water into an electric signal, which is amplified and tuned by the tuning circuit board 3, converted into a specific electric signal and output to the vehicle machine through the cable 4. The vehicle machine converts the specific electric signal collected into the wading depth for warning the driver, so that the driver can judge the wading depth in advance and avoid safety accidents.

[0052] The above embodiment only illustrates the principle and effect of the utility model, and is not used to limit the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought of the utility model should be covered by the claims of the utility model.

Claims

1. A wade monitoring pressure sensor, characterized in that, The utility model relates to a kind of vehicle media pressure sensor, including: Base for being connected with vehicle, medium passage is equipped on the base, pressure chip is equipped inside the base and at the end of the medium passage, and the pressure chip is used to detect medium pressure; Trimming circuit board is arranged in the base, and the pressure chip is electrically connected with the trimming circuit board; Cable is used to connect the trimming circuit board and car machine, to transmit electric signal.

2. The wade monitoring pressure sensor of claim 1, wherein: The base includes body, joint and connecting pipe, the body is equipped with medium inlet, the joint is equipped with first passage, the connecting pipe is equipped with second passage, and the medium inlet, the first passage and the second passage are communicated to form the medium passage.

3. The wade monitoring pressure sensor of claim 2, wherein: The pressure chip is arranged in the connecting pipe and is close to the trimming circuit board in axial direction, and blocks the medium passage, and one side surface of the pressure chip is communicated with the medium passage.

4. The wade monitoring pressure sensor of claim 3, wherein: The pressure chip is connected with the trimming circuit board by binding line.

5. The wade monitoring pressure sensor of claim 4, wherein: The trimming circuit board is equipped with protective cover, and the protective cover is arranged around the connecting point of the pressure chip and the trimming circuit board.

6. The wade monitoring pressure sensor of claim 5, wherein: The protective cover is equipped with through hole.

7. The wade monitoring pressure sensor of claim 6, wherein: The other side surface of the pressure chip is coated with protective layer.

8. The wade monitoring pressure sensor of claim 2, wherein: The body is symmetrically equipped with bushing, and the bushing is used to be connected with vehicle.

9. The wade monitoring pressure sensor of claim 8, wherein: The outer surface of the bushing and the joint is equipped with at least one axial limiting portion in axial direction.

10. The wade-monitoring pressure sensor of claim 1, wherein: It further includes cover body, the cover body is connected with the base, is used to seal the trimming circuit board, and the cable passes through the cover body and connects the trimming circuit board and the car machine.

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