Shell structure of sensor

Abstract

The utility model relates to the technical field of sensors, and discloses a shell structure of a sensor, which comprises an outer shell body, a cover plate arranged on the top surface of the outer shell body, an inner shell body arranged in the outer shell body, a heat-conducting insulating material filled in the outer shell body, a sensor body fixedly arranged in the inner shell body, and a through hole arranged on the outer side surface of the outer shell body, and heat dissipation fins are fixedly mounted in the through holes. According to the utility model, the cover plate can be simply and conveniently assembled and disassembled through the buckle, and can be assembled and disassembled in a short time without a complicated tool, so that the time and the cost for overhauling the sensor body or replacing parts are reduced, and the production efficiency is improved; and meanwhile, the sealing rubber ring is matched with the cover plate to effectively prevent water mist, dust and other impurities from entering the device, so that internal circuits and elements are protected from being influenced by the external environment, and the stable and reliable performance of the sensor body is ensured.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, specifically to a sensor housing structure. Background Technology

[0002] A sensor is a device that can detect changes in the external environment and convert these changes into electrical signals or other forms of signals. It can detect various physical quantities such as temperature, humidity, pressure, light intensity, and sound, and output these physical quantities as electrical signals. Sensors have a wide range of applications, covering almost every field of modern society, such as industrial production, smart homes, medical equipment, environmental monitoring, automotive safety, and aerospace. Because sensors contain many precision components, such as circuit boards and chips, these components are very sensitive to environmental conditions and are easily affected by temperature, humidity, vibration, and shock. Therefore, a protective housing structure is needed to provide physical protection against dust, moisture, and other contaminants, ensuring that the internal components are not damaged. This guarantees that the sensor can operate continuously and stably, providing accurate data feedback to the equipment or system.

[0003] According to a search, Chinese patent document CN220693613U discloses a heat dissipation structure for the housing of a laser methane sensor. The structure uses an air inlet and an air outlet channel to allow air to enter the housing and dissipate heat from the laser methane sensor. The dissipated air then exits through the outlet channel, effectively achieving heat dissipation by allowing air to flow in from the outside and out from the inside. However, in practical use, because the device has multiple air outlets in various directions and relies on natural airflow for heat dissipation, dust and moisture can easily enter the housing after prolonged use. This can affect the sensor's accuracy and even damage it. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, this utility model provides a sensor housing structure that has the advantages of convenient disassembly and assembly, efficient heat dissipation, and good sealing performance, thus solving the above-mentioned technical problems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a sensor housing structure, comprising a housing body, a cover plate installed on the top surface of the housing body, an inner housing body disposed inside the housing body, the interior of the housing body being filled with a thermally conductive and insulating material, a sensor body being fixedly installed inside the inner housing body, and a through hole being opened on the outer side of the housing body, with a heat dissipation fin fixedly installed inside the through hole.

[0008] Preferably, the outer side of the cover plate is provided with a buckle, which is engaged with the inside of the outer shell.

[0009] With the above technical solution, when it is necessary to repair or replace parts of the sensor body, the buckle makes the disassembly and assembly of the cover plate simple and convenient. Disassembly and assembly can be completed in a short time without complicated tools, reducing maintenance time and costs and improving production efficiency.

[0010] Preferably, a sealing ring is fixedly installed inside the outer casing.

[0011] Through the above technical solution, the sealing ring and cover plate can effectively prevent water mist and dust and other impurities from entering the device, protect the internal circuits and components from the influence of the external environment, and ensure the stable and reliable performance of the sensor body.

[0012] Preferably, the thermally conductive and insulating material is a composite material of aluminum nitride ceramic particles and epoxy resin.

[0013] Through the above technical solution, the design of a double-layer shell consisting of an outer shell and an inner shell, along with thermally conductive and insulating materials, not only can the device balance heat dissipation and insulation, thereby extending the lifespan of the sensor body, but the composite material of aluminum nitride ceramic particles and epoxy resin itself has high thermal conductivity, which can quickly conduct heat away, thereby effectively reducing the temperature of the sensor body during operation. Furthermore, the composite material has excellent insulation properties, which can effectively prevent current leakage, thereby protecting the internal circuits and components of the sensor body.

[0014] Preferably, there are multiple through holes and multiple heat dissipation fins, and the multiple heat dissipation fins are all installed on the outer surface of the thermally conductive insulating material.

[0015] Through the above technical solution, multiple heat dissipation fins can significantly increase the contact area between the thermally conductive insulating material and the external air, allowing more heat to be transferred to the air through the heat dissipation fins, thereby accelerating heat dissipation and further improving the overall heat dissipation efficiency of the device.

[0016] Preferably, the bottom surface of the outer casing is provided with multiple rubber pads and mounting holes.

[0017] Through the above technical solution, multiple rubber pads have good elasticity and cushioning performance, which can absorb and reduce external vibration and impact, protect the sensitive elements inside the sensor body, and extend the overall service life of the device; while the design of the mounting holes allows the outer shell to be firmly installed on the equipment or bracket with screws, bolts and other fasteners, ensuring that the sensor body will not affect the measurement results due to loosening during use, thus improving the accuracy of the measurement.

[0018] Compared with the prior art, this utility model provides a sensor housing structure with the following features:

[0019] Beneficial effects:

[0020] 1. This utility model uses a snap-fit ​​mechanism to make the disassembly and assembly of the cover plate simple and convenient, requiring no complicated tools and allowing for quick disassembly and assembly. This reduces the time and cost of inspecting or replacing parts of the sensor body, thereby improving production efficiency. At the same time, the sealing ring, together with the cover plate, can effectively prevent water mist, dust and other impurities from entering the device, protecting the internal circuits and components from the influence of the external environment, and ensuring the stable and reliable performance of the sensor body.

[0021] 2. This utility model, through the design of a double-layer shell consisting of an outer shell and an inner shell, and thermally conductive and insulating materials, not only enables the device to balance heat dissipation and insulation, thereby extending the lifespan of the sensor body, but also utilizes the high thermal conductivity of the composite material of aluminum nitride ceramic particles and epoxy resin, which can quickly conduct heat away, effectively reducing the temperature of the sensor body during operation. Furthermore, this composite material has excellent insulation properties, effectively preventing current leakage and protecting the internal circuits and components of the sensor body. Multiple heat dissipation fins significantly increase the contact area between the thermally conductive and insulating materials and the external air, allowing more heat to be transferred to the air through the heat dissipation fins, thereby accelerating heat dissipation and further improving the overall heat dissipation efficiency of the device. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0023] Figure 2 This is a three-dimensional exploded view of the structural cover plate and other parts of this utility model;

[0024] Figure 3 This is a top sectional view of the outer shell and other parts of the structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the bottom surface of the outer shell and other parts of the structure of this utility model.

[0026] The components are: 1. Outer shell; 2. Cover plate; 3. Inner shell; 4. Thermally conductive and insulating material; 5. Sensor body; 6. Through hole; 7. Heat dissipation fins; 8. Buckle; 9. Sealing ring; 10. Rubber gasket; 11. Mounting hole. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-4 A sensor housing structure includes a housing 1, a cover plate 2 installed on the top surface of the housing 1, an inner housing 3 disposed inside the housing 1, the interior of the housing 1 being filled with a thermally conductive and insulating material 4, a sensor body 5 being fixedly installed inside the inner housing 3, and a through hole 6 opened on the outer side of the housing 1, with a heat dissipation fin 7 fixedly installed inside the through hole 6.

[0029] Specifically, the outer side of the cover plate 2 is provided with a buckle 8, which is snapped into the inside of the outer casing 1. The advantage is that, with this structure, when it is necessary to repair or replace parts of the sensor body 5, the buckle 8 makes the disassembly and assembly of the cover plate 2 simple and convenient, and can be completed in a short time without complicated tools, reducing maintenance time and costs and improving production efficiency.

[0030] Specifically, a sealing ring 9 is fixedly installed inside the outer casing 1. The advantage is that, through this structure, the sealing ring 9, together with the cover plate 2, can effectively prevent water mist, dust and other impurities from entering the device, protecting the internal circuits and components from the influence of the external environment, and ensuring the stable and reliable performance of the sensor body 5.

[0031] Specifically, the thermally conductive and insulating material 4 is a composite material of aluminum nitride ceramic particles and epoxy resin. The advantages are that the double-layered shell design (outer shell 1, inner shell 3, and thermally conductive and insulating material 4) not only allows the device to balance heat dissipation and insulation, thus extending the lifespan of the sensor body 5, but the composite material itself has high thermal conductivity, enabling rapid heat dissipation and effectively reducing the operating temperature of the sensor body 5. Furthermore, this composite material has excellent insulation properties, effectively preventing current leakage and protecting the internal circuitry and components of the sensor body 5.

[0032] Specifically, multiple through holes 6 and multiple heat dissipation fins 7 are provided, and all multiple heat dissipation fins 7 are installed on the outer surface of the thermally conductive insulating material 4. The advantage is that, through this structure, multiple heat dissipation fins 7 can significantly increase the contact area between the thermally conductive insulating material 4 and the external air, and more heat can be transferred to the air through the heat dissipation fins 7, thereby accelerating heat dissipation and further improving the overall heat dissipation efficiency of the device.

[0033] Specifically, the bottom surface of the housing 1 is provided with multiple rubber pads 10 and mounting holes 11. The advantages are that the multiple rubber pads 10 have good elasticity and cushioning performance, which can absorb and reduce external vibrations and impacts, protecting the sensitive elements inside the sensor body 5 and extending the overall service life of the device; while the design of the mounting holes 11 allows the housing 1 to be securely installed on the equipment or bracket using screws, bolts, and other fasteners, ensuring that the sensor body 5 will not loosen during use and thus not affect the measurement results, improving the accuracy of the measurement.

[0034] During use, the snap-fit ​​8 makes the disassembly and assembly of the cover plate 2 simple and convenient, requiring no complicated tools and completing the disassembly and assembly in a short time. This reduces the time and cost of repairing or replacing parts of the sensor body 5, improving production efficiency. At the same time, the sealing ring 9, together with the cover plate 2, effectively prevents water mist, dust, and other impurities from entering the device, protecting the internal circuits and components from the influence of the external environment and ensuring the stable and reliable performance of the sensor body 5. The design of the double-layer shell of the outer shell 1 and the inner shell 3, along with the thermally conductive and insulating material 4, not only allows the device to balance heat dissipation and insulation, thus extending the life of the sensor body 5, but also the composite material of aluminum nitride ceramic particles and epoxy resin itself has high thermal conductivity, which can quickly conduct heat away, effectively reducing the temperature of the sensor body 5 during operation. Furthermore, the composite material has excellent insulation properties, which can effectively prevent current leakage, thus protecting the internal circuits and components of the sensor body 5. Multiple heat dissipation fins 7 significantly increase the contact area between the thermally conductive and insulating material 4 and the external air, allowing more heat to be transferred to the air through the heat dissipation fins 7, thereby accelerating heat dissipation and further improving the overall heat dissipation efficiency of the device.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sensor housing structure, comprising a housing body (1), characterized in that: The top surface of the outer shell (1) is fitted with a cover plate (2), the inner shell (3) is provided inside the outer shell (1), the inner shell (1) is filled with thermally conductive and insulating material (4), the sensor body (5) is fixedly installed inside the inner shell (3), the outer side of the outer shell (1) is provided with a through hole (6), and a heat dissipation fin (7) is fixedly installed inside the through hole (6).

2. The housing structure of a sensor according to claim 1, characterized in that: The outer side of the cover plate (2) is provided with a buckle (8), which is engaged with the inside of the outer shell (1).

3. The housing structure of a sensor according to claim 1, characterized in that: A sealing ring (9) is fixedly installed inside the outer shell (1).

4. The housing structure of a sensor according to claim 1, characterized in that: The thermally conductive and insulating material (4) is a composite material of aluminum nitride ceramic particles and epoxy resin.

5. The housing structure of a sensor according to claim 1, characterized in that: The number of the through holes (6) and the heat dissipation fins (7) are both provided in multiples, and the multiple heat dissipation fins (7) are all installed on the outer surface of the thermally conductive insulating material (4).

6. The housing structure of a sensor according to claim 1, characterized in that: The bottom surface of the outer casing (1) is provided with a plurality of rubber pads (10) and mounting holes (11).

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