Waterproof device for sensor
By adopting a combined design of waterproof terminals and heat shrink sleeves in the sensor device, the problems of wiring failure and circuit damage in high humidity environments are solved, the waterproof performance and service life of the sensor are improved, and the stability and safety of the equipment are ensured. .
Patent Information
- Application Number
- CN202420719336.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-09
AI Technical Summary
In high humidity environments, existing sensor devices are prone to circuit corrosion and fire safety hazards due to improper material selection of terminals and gaps at the connection between the sensor housing and the wiring, resulting in connection circuit failure and damage to the main board. Especially in breeding farms, circuit corrosion and fire safety hazards are prone to occur, which affects the service life.
A sensor waterproof device is designed, including a housing, waterproof terminal, heat shrink sleeve and wire. The housing has a built-in storage cavity. The wire is connected to the external device through a waterproof terminal. The heat shrink sleeve seals the cylindrical opening. The waterproof level of the waterproof terminal is No less than IP67 to ensure sealing and stability.
It effectively improves the waterproof performance of the sensor in the farm, avoids moisture intrusion, extends service life, reduces circuit damage and fire risks, and ensures the stability and safety of the equipment.
Smart Images
Figure CN222279779U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waterproofing, in particular to a waterproofing device for a sensor. Background Art
[0002] In existing sensor devices, in high humidity environments, improper selection of terminal materials and / or gaps between the sensor housing and the wiring connections often cause sensor connection line failures and even damage to the sensor motherboard. Especially in farms, in order to prevent and control the occurrence of animal infectious diseases, reduce the spread of diseases between animals, protect the health and production performance of farmed animals, and avoid potential safety risks of animal-derived foods, it is necessary to regularly carry out a series of cleaning, disinfection and killing of pathogenic microorganisms in the farm environment and its facilities. Therefore, how to effectively improve the waterproof performance of the sensor device is a problem that must be solved to increase the service life of the sensor device. Utility Model Content
[0003] The main purpose of the utility model is to provide a waterproof device for a sensor, aiming to improve the waterproof performance of the sensor in a breeding farm.
[0004] To achieve the above purpose, the utility model proposes a sensor waterproof device, which is applied to a breeding farm. The sensor waterproof device includes a housing, a waterproof terminal, a sensor, a heat shrinkable sleeve, and a wire;
[0005] Wherein, an opening is provided on one side of the shell, and a receiving cavity is built therein;
[0006] The first end of the wire is connected to one side of the waterproof terminal through an opening on one side of the housing, and the other end of the waterproof terminal is used to connect to an external device;
[0007] The sensor is disposed in the accommodating cavity and connected to the second end of the wire;
[0008] The heat shrinkable sleeve is sealed and arranged at the opening of the shell.
[0009] Preferably, the opening on one side of the housing is a cylindrical extended opening;
[0010] The cylindrical opening extends from a side close to the sensor to an opposite side and gradually shrinks, and its diameter is larger than the diameter of the wire.
[0011] Preferably, the waterproof terminal is any one of a plug-in waterproof terminal, a plug-in waterproof connector, and a heat shrinkable waterproof terminal.
[0012] Preferably, the waterproof level of the waterproof terminal is not lower than IP67.
[0013] Preferably, the sensor includes one or more of a temperature sensor, a humidity sensor, a light sensor, and a gas sensor.
[0014] Preferably, the sensor waterproof device further comprises a wired communication circuit, one end of which is connected to the sensor, and the other end of which is connected to the waterproof terminal, and is used for communication between the sensor and an external device.
[0015] Preferably, the wired communication circuit includes any one of USART, UART, RS-485, and RS-232.
[0016] The technical solution of the utility model is applied to a breeding farm by adopting a sensor waterproof device. The sensor waterproof device includes a housing, a waterproof terminal, a sensor, a heat shrink tubing, and a wire. An opening is provided on one side of the housing to facilitate the wire to be connected to the inside of the housing through the opening. The gap between the housing opening and the contact point of the wire is sealed by adopting a heat shrink sleeve. The sensor is arranged in the accommodating cavity of the housing and connected to the wire. The end of the wire that is not connected to the sensor needs to be connected to an external device, and waterproofing is achieved through a waterproof terminal. This effectively improves the waterproof performance of the sensor in the breeding farm. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0018] Figure 1 This is a schematic diagram of the structure of the sensor waterproof device of the utility model;
[0019] Figure 2 It is a partial enlarged view of the sensor waterproof device of the utility model.
[0020] Description of Figure Numbers:
[0021] Label name Label name 10 shell 30 wire 20 Heat shrink tubing 40 Waterproof terminal
[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0023] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0025] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0026] In existing sensor devices, in high humidity environments, improper selection of terminal materials and / or gaps between the sensor housing and the wiring connections usually cause the sensor connection lines to malfunction, or even damage the sensor mainboard. Especially in farms, in order to prevent and control the occurrence of animal infectious diseases, reduce the spread of diseases between animals, protect the health and production performance of farmed animals, and avoid potential safety risks of animal-derived foods, it is necessary to regularly carry out a series of cleaning, disinfection, and killing of pathogenic microorganisms in the farm environment and its facilities. Therefore, how to effectively improve the waterproof performance of the sensor device is a problem that must be solved to increase the service life of the sensor device. In actual applications, the terminal blocks and internal circuit boards in the sensor device are often corroded due to the external environment, which will cause circuit damage and even fire, posing a major safety hazard.
[0027] For this purpose, refer to Figure 1 and Figure 2 The utility model proposes a sensor waterproof device, which is applied to a breeding farm. The sensor waterproof device includes a housing 10, a waterproof terminal 40, a sensor, a heat shrinkable sleeve 20, and a wire 30;
[0028] The housing 10 has an opening on one side and a built-in accommodating cavity;
[0029] The first end of the wire 30 is connected to one side of the waterproof terminal 40 through an opening on one side of the housing 10, and the other end of the waterproof terminal 40 is used to connect to an external device;
[0030] The sensor is disposed in the accommodating cavity and connected to the second end of the wire 30;
[0031] The heat shrinkable sleeve 20 is sealed and disposed at the opening of the housing.
[0032] In the present embodiment, the housing 10 can be implemented by engineering plastics, composite materials, aluminum alloys, etc. Among them, engineering plastics can be used such as polycarbonate (PC), polyetherimide (PEI), polyoxymethylene (POM), polyamide (nylon PA), polyvinylidene fluoride (PVDF), etc. These plastic materials not only have good waterproofness and corrosion resistance, but also have low density, which can greatly reduce the overall weight. Composite materials can be used such as glass fiber reinforced plastics (GRP, also known as FRP) or carbon fiber reinforced plastics (CFRP). These composite materials combine the advantages of matrix resins (such as epoxy resins, polyester resins, etc.) and reinforcing fibers, and have the characteristics of light weight, high strength, and corrosion resistance. Compared with iron and steel, aluminum alloys have lower density and also have certain waterproof and corrosion resistance. After appropriate surface treatment, the weight can be significantly reduced while maintaining structural strength. Among them, because the housing 10 is built with a housing cavity for placing sensors, it is necessary to adopt a splicing method, and the splicing is performed after the sensor and the wire 30 are placed. The splicing gap of the housing 10 can be sealed with corresponding sealing materials to prevent moisture from entering. Furthermore, a corresponding slot is provided inside the housing 10 to fix the sensor to prevent the sensor from shifting and being damaged due to collision.
[0033] The opening on one side of the shell is a cylindrical extended opening;
[0034] The cylindrical opening extends from a side close to the sensor to an opposite side and gradually shrinks, and its diameter is larger than the diameter of the wire 30 .
[0035] In this embodiment, an opening is provided on one side of the shell to facilitate the connection of the wire 30 with the sensor disposed inside. Among them, the cylindrical extension opening allows the wire 30 to obtain a longer support point. When the wire 30 outside the shell 10 is bent, it cannot affect the wire 30 connected to the inside of the sensor, which effectively ensures the stability of the connection between the wire 30 and the sensor. In addition, by extending the cylindrical opening from the side close to the sensor to the opposite side and gradually narrowing it, the wire 30 can have a certain inclination angle and connect with the sensor attached to the inner edge of the shell 10, thereby improving the flexibility of the sensor setting. The diameter of the cylindrical opening is larger than the diameter of the wire 30, which is convenient for the wire 30 to be set in connection, but it also results in a gap at the cylindrical opening, which will reduce the waterproof performance of the sensor waterproof device. Specifically, when the farm is disinfected, the disinfectant will flow into the gap at the cylindrical opening along the wire 30, corrode the sensor inside the shell 10, and reduce the service life of the sensor.
[0036] Therefore, a sealing component should be provided at the opening of the shell. Among them, heat shrink tubing, as a protective material with heat shrinking properties, has unique advantages, such as insulation protection: heat shrink tubing covers electrical components such as wires, cables, terminal blocks, and electrical connectors, providing excellent insulation performance, preventing current leakage, ensuring electricity safety, and protecting wires from mechanical damage. Rust and corrosion prevention: applied to the surface of metal pipes, rods or other metal products, it can isolate air and moisture, effectively prevent metal oxidation and rust, and extend the service life of metal products. Stress relief: heat shrink tubing can be wrapped around wire joints or welding parts, and the stress concentration area can be wrapped by shrinkage to disperse stress and prevent the joint from loosening or breaking. Sealing and waterproofing: Due to its good waterproof performance, heat shrink tubing can be used for waterproof sealing to prevent water and moisture from entering the interior of electronic equipment and ensure the normal operation of the equipment in a humid environment. Identification and differentiation: heat shrink tubing has different colors, which can be used to identify the different uses, voltage levels or signal types of cables for easy management and maintenance identification. Strengthening structural connections: Using heat shrink tubing at the connection between electrical connectors and wires can improve the tensile strength and airtightness of the connection, making the connection more secure and reliable. Protection and aesthetics: In addition to its functional role, heat shrink tubing can also provide a neat and smooth appearance, improving the overall quality and appearance of the product. Electronic component packaging: Heat shrink tubing can be used to package electronic components such as resistors, capacitors, and inductors to enhance their resistance to the external environment. Therefore, a heat shrink tubing 20 is provided at the opening of the shell, which can effectively ensure that the gap at the cylindrical opening is in a sealed state.
[0037] The sensor waterproof device needs to be electrically connected to the external device to achieve data interaction, so that the main control device can uniformly obtain the data of multiple sensors. Therefore, the sensor waterproof device is detachably connected to the external device through a modular setting. However, this will also cause the wire 30 at one end of the external device to be exposed to the external environment, which may easily cause damage to the terminal due to the influence of the external environment. The connection method using the waterproof terminal 40 effectively ensures the stability of the connection of the wire 30.
[0038] In this embodiment, the waterproof terminal 40 is any one of a plug-in waterproof terminal, a plug-in waterproof connector, and a heat shrink crimping waterproof terminal. The waterproof terminal 40 can prevent moisture from directly contacting the wire connection point or electronic components, avoid problems such as short circuit, rust, and electrical performance degradation caused by moisture, and ensure the continuity and stability of the electrical system. Prevent dust and dirt from entering the terminal to avoid affecting the conductive performance or causing poor contact. In an environment containing chemicals or other corrosive environments, the waterproof terminal 40 can reduce or prevent metal parts from being corroded and extend the service life. Provide additional mechanical strength to resist the influence of external forces such as vibration and impact, and maintain the stability of the connection. Through special materials and designs, such as heat shrink tubing, sealing gaskets, etc., the insulation performance between the terminals is improved to prevent electric shock or leakage accidents.
[0039] The sensor waterproof device includes a housing 10, a waterproof terminal 40, a sensor, a heat shrink sleeve 20, and a wire 30. An opening is provided on one side of the housing 10 so that the wire 30 can be connected to the inside of the housing 10 through the opening. The gap between the opening of the housing 10 and the contact point of the wire 30 is sealed by using a heat shrink sleeve. The sensor is arranged in the accommodating cavity of the housing 10 and connected to the wire 30. Among them, the end of the wire 30 that is not connected to the sensor needs to be connected to an external device, and waterproofing is achieved through the waterproof terminal 40. Thereby, the waterproof performance of the sensor in the farm is effectively improved.
[0040] In an embodiment of the present invention, the waterproof level of the waterproof terminal 40 is not less than IP67.
[0041] It is important to understand that a waterproof rating of at least IP67 means that the device has met one of the international protection rating standards, that is, it has excellent dust and water resistance. The IP (Ingress Protection) protection rating system is a standard established by the International Electrotechnical Commission (IEC) to measure the protection of the housing 10 of electrical equipment against solid and liquid foreign objects. The two numbers after IP represent different protection levels: the first number indicates the dust protection level, ranging from 0 to 6, and the larger the number, the stronger the protection. IP6 level dust protection means that the device can completely prevent dust from entering, and even dust that is small enough to cause damage to the inside of the device cannot penetrate the housing 10. The second number indicates the waterproof rating, ranging from 0 to 8, and the larger the number, the stronger the protection. IP7 level waterproof protection means that the device can prevent water intrusion for a short period of time. Under experimental conditions, the device is placed in 1 meter deep water and can remain undamaged for at least 30 minutes due to water ingress. Therefore, IP67 level equipment can not only completely prevent dust from entering, but also temporarily resist water immersion under certain conditions, specifically short-term immersion in 1 meter deep water without affecting the normal operation of the device. Therefore, the waterproof terminal 40 in the sensor waterproof device can effectively ensure the stability of the electrical connection between the sensor and the external device.
[0042] In an embodiment of the present invention, the sensor includes one or more of a temperature sensor, a humidity sensor, a light sensor, and a gas sensor.
[0043] In this embodiment, the housing 10 can be adjusted according to the actual number and volume of the sensors to achieve the protection effect of the sensors. The temperature sensor can be implemented by thermocouple sensors, thermal resistor sensors, thermistor sensors, integrated circuit temperature sensors, infrared temperature sensors, etc. Among them, the thermocouple sensor uses the thermoelectric potential (Seebeck effect) formed at different metal nodes to measure the temperature. Common types include K type, J type, T type, E type, etc. The thermal resistor sensor uses the characteristic that the resistance of certain metals (such as platinum and nickel) changes with temperature for measurement. For example, platinum resistor (Pt100) is the most common RTD type. Thermistor sensors use the characteristic that the resistance of semiconductor materials changes sharply with temperature (usually negative temperature coefficient, NTC or positive temperature coefficient, PTC) to measure temperature. Integrated circuit temperature sensors (IC TemperatureSensors) include two types: analog output and digital output. They have built-in temperature sensing elements and signal processing circuits, and can directly output voltage or digital signals related to temperature. The infrared temperature sensor receives and measures the infrared radiation energy emitted by the object to infer the surface temperature of the object without contacting the object. Furthermore, the temperature sensor can be selected according to actual needs. For example, the temperature to be detected is the ambient temperature or the body temperature of the livestock, or both. In addition, in actual use, the required detection may not be a single detection data. Therefore, multiple sets of sensors can be set in the sensor waterproof device by combining them to achieve multi-directional detection.
[0044] In an embodiment of the present invention, the sensor waterproof device further includes a wired communication circuit, one end of which is connected to the sensor, and the other end of which is connected to the waterproof terminal 40 and is used for communication between the sensor and an external device.
[0045] In this embodiment, the wired communication circuit includes any one of USART, UART, RS-485, and RS-232. In large-scale aquaculture production, the number of sensors is often set to detect parameters in different areas. In order to centrally manage, multiple sensors will feed back the detected data to an external terminal by means of wired communication, so that the aquaculture personnel can monitor the entire aquaculture area through one terminal device. When it is found that the detection data of a certain area is abnormal, the area can be visited in time and adjustments can be made to avoid property losses. Among them, the wired communication circuit is arranged in the wire 30, connected to the sensor and the waterproof terminal 40 through the wire 30, and further connected to the external device through the waterproof terminal 40, so as to realize data interaction.
[0046] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A waterproof sensor device, used in a breeding farm, characterized in that: The sensor waterproof device comprises a housing, a waterproof terminal, a sensor, a heat shrinkable sleeve, and a wire; Wherein, an opening is provided on one side of the shell, and a receiving cavity is built therein; The first end of the wire is connected to one side of the waterproof terminal through an opening on one side of the housing, and the other end of the waterproof terminal is used to connect to an external device; The sensor is disposed in the accommodating cavity and connected to the second end of the wire; The heat shrinkable sleeve is sealed and arranged at the opening of the shell.
2. The waterproof sensor device according to claim 1, characterized in that: The opening on one side of the shell is a cylindrical extended opening; The cylindrical opening extends from a side close to the sensor to an opposite side and gradually shrinks, and its diameter is larger than the diameter of the wire.
3. The waterproof sensor device according to claim 1, characterized in that: The waterproof terminal is any one of a plug-in waterproof terminal, a plug-in waterproof connector, and a heat shrinkable waterproof terminal.
4. The waterproof sensor device according to claim 3, characterized in that: The waterproof level of the waterproof terminal is not lower than IP67.
5. The waterproof sensor device according to claim 1, characterized in that: The sensor includes one or more of a temperature sensor, a humidity sensor, a light sensor, and a gas sensor.
6. The waterproof sensor device according to claim 1, characterized in that: The sensor waterproof device also includes a wired communication circuit, one end of which is connected to the sensor, and the other end of which is connected to the waterproof terminal, and is used for communication between the sensor and external equipment.
7. The waterproof sensor device according to claim 6, characterized in that: The wired communication circuit includes any one of USART, UART, RS-485, and RS-232.