Water level detection device capable of preventing signal interference

Abstract

The utility model relates to a water level detection device capable of preventing signal interference, which comprises a hollow box body and a water level detection module, and at least one layer of signal shielding coating is arranged on the outer wall and / or the inner wall of the hollow box body; an upper opening communicated with an inner cavity of the hollow box body is formed in the top of the hollow box body, and a lower opening communicated with the inner cavity of the hollow box body is formed in the bottom of the hollow box body; the water level detection module is arranged in the hollow box body, and a detection part of the water level detection module is located in the hollow box body and located between the upper opening and the lower opening; and a signal line and a power supply line of the water level detection module extend out of the hollow box body. The signal shielding coatings are arranged on the inner wall and the outer wall of the hollow box body, the influence of external electromagnetic interference on the water level detection module can be remarkably restrained, and it is ensured that detection signals are stable and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to a water level detection device of preventing signal interference. BACKGROUND

[0002] With the continuous development of industrial automation, intelligent control and environmental monitoring technology, water level detection technology has been widely used in chemical industry, metallurgy, water treatment, transportation and municipal engineering fields. The traditional water level detection device generally uses a directly exposed detection module or a structure without sufficient shielding, which often faces the following problems in actual application:

[0003] In modern industrial environment, various electrical equipment and wireless communication equipment exist universally, which is easy to produce electromagnetic interference. These interference signals not only may affect the normal work of the sensitive circuit inside the water level detection module, but also may cause the noise increase in signal transmission, thereby reducing the detection accuracy and the reliability of the system.

[0004] The traditional detection module lacks effective shielding measures, which causes the internal signals to be interfered by external electromagnetic waves in the transmission process, and also may radiate internal electromagnetic signals to the external environment, thereby causing mutual interference of other equipment. INVENTION CONTENTS

[0005] The utility model aims at providing a water level detection device of preventing signal interference which effectively suppresses the invasion of external electromagnetic interference and reduces the interference risk.

[0006] The utility model is realized as follows:

[0007] A water level detection device of preventing signal interference, comprising a hollow box body and a water level detection module, at least one layer of signal shielding coating is arranged on the outer wall and / or the inner wall of the hollow box body;

[0008] An upper opening communicating with the inner cavity of the hollow box body is formed in the top of the hollow box body, and a lower opening communicating with the inner cavity of the hollow box body is formed in the bottom of the hollow box body;

[0009] The water level detection module is arranged in the hollow box body, and the detection part of the water level detection module is located in the hollow box body and between the upper opening and the lower opening;

[0010] The signal line and the power supply line of the water level detection module extend out of the hollow box body.

[0011] The signal shielding coating arranged on the inner and outer walls of the hollow box body can significantly suppress the influence of external electromagnetic interference on the water level detection module, and ensure the stability and reliability of the detection signal.

[0012] The signal shielding coating not only prevents external interference from entering, but also effectively suppresses internal signal leakage, avoids interference to other devices, and improves the overall electromagnetic compatibility of the system.

[0013] By setting the water level detection module in the hollow box body and locating the detection part between the upper opening and the lower opening, the accuracy of the contact between the detection module and the external water level is ensured, the environmental protection is considered, and the accuracy of the detection result is ensured.

[0014] The structure design and material technology are comprehensively used, so that the device can maintain excellent performance in various complex working conditions (such as high humidity and strong electromagnetic interference environment), and meet the application requirements of industrial, civil and other scenes.

[0015] The purpose of the utility model can also be solved by the following technical measures:

[0016] Further, the hollow box body inner wall is provided with a clamping groove, the water level detection module further comprises a circuit board, the detection part is arranged on the circuit board and electrically connected with the circuit board, and the circuit board is inserted and clamped in the clamping groove to realize the fixation of the water level detection module in the hollow box body.

[0017] The clamping groove structure can firmly clamp the circuit board in the hollow box body, prevent the module from loosening due to vibration or collision during transportation, installation or work, and ensure that the detection module is always in an ideal position.

[0018] After the module is fixed, the detection part always remains in the predetermined detection area, avoiding measurement errors caused by position deviation, thereby improving the accuracy and stability of water level detection.

[0019] The clamping groove design makes the installation and disassembly of the circuit board simple, which is convenient for production assembly and is beneficial for subsequent maintenance and replacement, reducing maintenance cost and complexity.

[0020] The close cooperation between the circuit board and the clamping groove not only improves the mechanical fixation effect of the internal components, but also helps to resist external vibration and environmental interference, improving the durability and reliability of the entire device.

[0021] By fixing the circuit board through the clamping groove, the internal space of the hollow box body can be more reasonably planned, so that the positions of various components are fixed and the layout is compact, further improving the comprehensive performance of the system.

[0022] In summary, the design firmly fixes the circuit board of the water level detection module in the hollow box body through the clamping groove, which not only improves the installation stability and detection accuracy of the module, but also realizes the assembly convenience and system structure optimization, providing reliable physical support and protection for the overall signal interference prevention and water level detection device.

[0023] Furthermore, the hollow box body includes a hollow shell with an open bottom and a bottom cover. The bottom cover is locked to the bottom opening of the hollow shell by bolts, and the bottom cover seals the hollow shell. The bottom cover has the lower opening.

[0024] The hollow shell and the bottom cover are locked together with bolts. The bottom cover seals the hollow shell, preventing the internal environment from being affected by external water, dust or other impurities, and ensuring the stable operation of the internal components.

[0025] The bolt locking method of the bottom cover not only ensures a firm fixation, but also facilitates subsequent disassembly, maintenance, or replacement of internal modules.

[0026] The bottom opening on the cover allows external water to directly enter the hollow shell and make effective contact with the detection module, thereby improving detection accuracy.

[0027] Furthermore, the detection part is a spring, and the upper opening, the inner cavity of the spring, and the lower opening are connected.

[0028] The spring structure has good flexibility and recovery performance, and can respond quickly to changes in water level, thereby realizing dynamic and continuous water level detection.

[0029] The upper opening, the inner cavity of the spring, and the lower opening are interconnected, ensuring that the detection module always maintains good contact with the water, thus guaranteeing the stability and accuracy of the detection signal.

[0030] Springs, as a detection component, not only occupy little space, but their structural design can also effectively resist the impact of external mechanical vibration on detection accuracy.

[0031] Furthermore, the signal shielding coating is a continuous metal layer deposited through processes such as vacuum deposition, sputtering, or chemical plating.

[0032] The continuous metal layer has high uniformity and integrity. It can be deposited through processes such as vacuum coating, sputtering or chemical plating, which can effectively prevent external electromagnetic interference from entering the interior and suppress internal signal leakage.

[0033] The above process allows for precise control of the coating thickness and density, thereby ensuring that the expected electromagnetic shielding standards are met and improving the overall system stability.

[0034] The continuous metal layer structure is compact and can maintain stable performance for a long time, and has a strong resistance to harsh environments.

[0035] Furthermore, the signal shielding coating is an aluminum, copper, or silver film.

[0036] Aluminum, copper, and silver all have excellent electrical conductivity, and their thin films can form a highly efficient electromagnetic shielding layer, further enhancing anti-interference capabilities.

[0037] These metallic materials have advantages in terms of cost, weight, and corrosion resistance, and can be flexibly selected according to specific application scenarios to achieve a balance between performance and economy.

[0038] The use of aluminum, copper, or silver thin film deposition processes is relatively mature, facilitating large-scale production and ensuring reliability, thereby enhancing the overall market competitiveness of the product.

[0039] The beneficial effects of this utility model are as follows:

[0040] This invention employs a signal shielding coating on the inner and outer walls of a hollow box, which can significantly suppress the influence of external electromagnetic interference on the water level detection module and ensure stable and reliable detection signals.

[0041] This invention provides a signal shielding coating that not only prevents external interference from entering, but also effectively suppresses internal signal leakage, avoids interference with other devices, and improves the overall electromagnetic compatibility of the system.

[0042] This invention, by placing the water level detection module inside a hollow box with the detection area located between the upper and lower openings, ensures both the accuracy of the detection module's contact with the external water level and environmental protection, thus guaranteeing the precision of the detection results.

[0043] This utility model features a slot structure that securely holds the circuit board into the hollow box, preventing the module from loosening due to vibration or collision during transportation, installation, or operation, thus ensuring that the detection module is always in the ideal position.

[0044] This invention features a spring structure with good flexibility and resilience, enabling it to respond quickly to changes in water level and thus achieve dynamic and continuous water level detection.

[0045] In this invention, aluminum, copper, and silver all possess excellent electrical conductivity, and their thin films can form a highly efficient electromagnetic shielding layer, further enhancing anti-interference capabilities. Attached Figure Description

[0046] Figure 1 A schematic diagram of a water level detection device designed to prevent signal interference.

[0047] Figure 2 Another schematic diagram of the water level detection device to prevent signal interference.

[0048] Figure 3 A cross-sectional view of a water level detection device designed to prevent signal interference.

[0049] Figure 4 Another cross-sectional view of the water level detection device to prevent signal interference.

[0050] Figure 5 Assembly diagram of a water level detection device to prevent signal interference. Detailed Implementation

[0051] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0052] Implementation examples, in conjunction with Figures 1 to 5 As shown, a water level detection device for preventing signal interference includes a hollow box 1 and a water level detection module 2. The outer wall and / or inner wall of the hollow box 1 are provided with at least one layer of signal shielding coating 3.

[0053] The top of the hollow box 1 has an upper opening 11 that connects to the inner cavity of the hollow box 1, and the bottom of the hollow box 1 has a lower opening 12 that connects to the inner cavity of the hollow box 1.

[0054] The water level detection module 2 is installed inside the hollow box 1, and the detection part of the water level detection module 2 is located inside the hollow box 1 and between the upper opening 11 and the lower opening 12.

[0055] The signal line 21 and power supply line 22 of the water level detection module 2 extend out of the hollow box 1.

[0056] Furthermore, the inner wall of the hollow box 1 is provided with a slot 13, and the water level detection module 2 also includes a circuit board 23. The detection part is disposed on the circuit board 23 and electrically connected to the circuit board 23. The circuit board 23 is inserted into and clamped in the slot 13, so that the water level detection module 2 is fixed in the hollow box 1.

[0057] Furthermore, the hollow box 1 includes a hollow shell 4 with an open bottom and a bottom cover 5. The bottom cover 5 is locked to the bottom opening of the hollow shell 4 by bolts, and the bottom cover 5 seals the hollow shell 4. The bottom cover 5 has the lower opening 12.

[0058] Furthermore, the detection unit is a spring 24, and the upper opening 11, the inner cavity of the spring 24, and the lower opening 12 are connected.

[0059] Furthermore, the signal shielding coating 3 is a continuous metal layer deposited through processes such as vacuum deposition, sputtering, or chemical plating.

[0060] Furthermore, the signal shielding coating 3 is an aluminum, copper, or silver film.

Claims

1. A water level detection device for preventing signal interference, comprising a hollow housing and a water level detection module, characterized in that: The hollow box has at least one signal shielding coating on its outer and / or inner walls. The top of the hollow box has an upper opening that connects to the inner cavity of the hollow box, and the bottom of the hollow box has a lower opening that connects to the inner cavity of the hollow box. The water level detection module is installed inside the hollow box, and the detection part of the water level detection module is located inside the hollow box and between the upper opening and the lower opening; The signal and power supply lines of the water level detection module extend outside the hollow box.

2. The water level detection device for preventing signal interference according to claim 1, characterized in that: The hollow box has a slot on its inner wall. The water level detection module also includes a circuit board. The detection part is mounted on the circuit board and electrically connected to it. The circuit board is inserted into and secured in the slot, thus fixing the water level detection module inside the hollow box.

3. The water level detection device for preventing signal interference according to claim 1, characterized in that: The hollow box body includes a hollow shell with an open bottom and a bottom cover. The bottom cover is bolted to the bottom opening of the hollow shell and seals the hollow shell. The bottom cover has the lower opening.

4. The water level detection device for preventing signal interference according to claim 1, characterized in that: The detection part is a spring, and the upper opening, the inner cavity of the spring, and the lower opening are connected.

5. The water level detection device for preventing signal interference according to claim 1, characterized in that: The signal shielding coating is a continuous metal layer deposited by vacuum deposition, sputtering, or chemical plating processes.

6. The anti-signal interference water level detection device according to claim 1 or 5, characterized in that: The signal shielding coating is an aluminum, copper, or silver film.

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