CN108225394B - Waterproof sensor node packaging box for environmental monitoring - Google Patents

Waterproof sensor node packaging box for environmental monitoring Download PDF

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Publication number
CN108225394B
CN108225394B CN201711425087.7A CN201711425087A CN108225394B CN 108225394 B CN108225394 B CN 108225394B CN 201711425087 A CN201711425087 A CN 201711425087A CN 108225394 B CN108225394 B CN 108225394B
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sensor
wall
packaging box
inner layer
layer structure
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CN108225394A (en
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蒋维乐
张福政
林启敬
吴昊
韩枫
赵立波
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Xian Jiaotong University
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/24Housings ; Casings for instruments
    • G01D11/26Windows; Cover glasses; Sealings therefor

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Abstract

本发明公开了一种用于环境监测的防水传感器节点封装盒,封装盒主体分为内层、中层和外层三层结构,内层、中层和外层结构共用外层后壁,封装盒联接前翼与封装盒联接后翼分别与外层前壁和外层后壁连接;封装盒盖同封装盒联接前翼、封装盒联接后翼的连接方式为固定螺栓和固定螺母连接;底部左支座和底部右支座分别置于下壁左右两端,作为封装盒支承件;监测节点模块安装于内层结构之内,各传感器安装于中层结构之上。本发明既不影响传感器对环境数据的监测,又可以实现对节点模块的防水、防尘保护,提高节点模块的使用寿命;封装盒结构简单、制造简便、容易装配;可以实现对多传感器的集成封装,传感器损坏后容易换装。

Figure 201711425087

The invention discloses a waterproof sensor node packaging box for environmental monitoring. The main body of the packaging box is divided into an inner layer, a middle layer and an outer layer structure. The inner layer, the middle layer and the outer layer structure share the outer rear wall, and the packaging box is connected to The front wing is connected with the packaging box and the rear wing is respectively connected with the outer front wall and the outer rear wall; the packaging box cover is connected with the packaging box to connect the front wing and the packaging box is connected to the rear wing by fixing bolts and fixing nuts. The seat and the bottom right support are respectively placed on the left and right ends of the lower wall as support parts of the packaging box; the monitoring node modules are installed in the inner layer structure, and each sensor is installed on the middle layer structure. The invention does not affect the monitoring of environmental data by the sensor, and can realize the waterproof and dustproof protection of the node module, so as to improve the service life of the node module; the packaging box has simple structure, simple manufacture and easy assembly; it can realize the integration of multiple sensors. Package, easy to replace when the sensor is damaged.

Figure 201711425087

Description

Waterproof sensor node packaging box for environmental monitoring
Technical Field
The invention relates to the technical field of environmental monitoring node modules and sensor packaging, in particular to a waterproof sensor node packaging box for environmental monitoring
Background
With the coming of the internet plus era, the application of the internet of things technology in environmental monitoring is more and more extensive, and the wireless sensor network is the core of physical world information perception as a key technology in the technical field of the internet of things. The wireless sensor network is composed of a plurality of sensor nodes, and the sensor node module collects environmental information and transmits the information in networking and wireless communication modes to cooperatively complete certain specific functions. The wireless sensor network is applied to the field of environmental monitoring, and the information acquisition capacity of multiple sensors of the wireless sensor network can be fully exerted.
However, the currently used sensor node package often cannot perform good protection such as water resistance and dust resistance on a node module, and the package box has a complex structure and is inconvenient to manufacture, so that the integrated package of multiple sensors is difficult to realize. The sensors are troublesome to replace after being damaged, and the packaging box is non-transparent, so that the working condition of the indicator lights of the sensors can not be directly observed.
Disclosure of Invention
The invention aims to provide a waterproof sensor node packaging box for environment monitoring, which realizes waterproof and dustproof protection of a monitoring node module and integrated packaging of multiple sensors and provides a simple manufacturing and assembling method of the packaging box.
The technical scheme of the invention is realized as follows:
a waterproof sensor node packaging box for environmental monitoring is characterized in that a packaging box main body is divided into an inner layer structure, a middle layer structure and an outer layer structure, the inner layer structure, the middle layer structure and the outer layer structure share an outer layer rear wall, and a packaging box connecting front wing and a packaging box connecting rear wing are respectively connected with the outer layer front wall and the outer layer rear wall; the connection mode of the packaging box cover, the packaging box connection front wing and the packaging box connection rear wing is that a fixing bolt is connected with a fixing nut; the bottom left support and the bottom right support are respectively arranged at the left end and the right end of the lower wall and are used as packaging box supporting pieces; the monitoring node module is arranged in the inner layer structure, and each sensor is arranged on the middle layer structure.
The inner layer structure comprises an inner layer left wall, an inner layer right wall and an inner layer front wall, wherein wire holes are formed in the lower portions of the inner layer left wall, the inner layer right wall and the inner layer front wall, and power line guide holes are formed in the front wall.
The middle layer structure comprises a middle layer left wall, a middle layer right wall and a middle layer front wall, wherein wire holes are formed in the upper portions of the left wall, the right wall and the front wall, and sensor fixing holes are formed in the middle layer three walls.
The outer layer structure comprises an outer layer left wall, an outer layer right wall, an outer layer rear wall and an outer layer front wall, wherein the left wall, the right wall, the front wall and the rear wall are all provided with ventilation holes, and the rear wall is also provided with an antenna guide hole.
The sensors comprise a temperature and humidity sensor, a PM2.5 sensor, a smoke gas sensor, a CO sensor, an SO2 sensor and a vibration sensor. The CO sensor and the smoke gas-sensitive sensor are connected and arranged on the right wall of the middle layer through fixing bolts and nuts, the SO2 sensor is connected and arranged on the front wall (20) of the middle layer through fixing bolts and nuts, the temperature and humidity sensor is connected and arranged on the left wall of the middle layer through fixing bolts and nuts, the PM2.5 sensor is arranged on the left side inside the packaging box through a fixing block, and the vibration sensor is arranged outside the packaging box through an inner layer wire hole, a middle layer wire hole and an outer layer power line guide hole.
The monitoring node module is installed in the assembly process of the packaging box, the node module is arranged in the inner layer structure in the installation process of the inner layer structure of the packaging box, and the node module is fixed according to the matching relation between the antenna and the inner layer structure.
The installation positions of the sensors are completely separated from the monitoring node modules through the inner layer structure and the middle layer structure, if a certain sensor is damaged, the sensor can be directly replaced without changing other sensors or node modules and the like.
The waterproof packaging box is characterized in that wire holes and power line guide holes in the inner layer structure and the middle layer structure of the packaging box are completely staggered, and sealing materials such as epoxy resin pouring sealant and hot melt adhesive are filled in the middle of the wire holes and the power line guide holes, and the guide holes can be sealed through the hot melt adhesive.
Compared with the traditional packaging box structure, the invention does not influence the monitoring of the sensor on the environmental data, can realize the waterproof and dustproof protection on the node module, and prolongs the service life of the node module; the packaging box has simple structure, simple and convenient manufacture and easy assembly; the integrated packaging of the multiple sensors can be realized, and the sensors are easy to replace after being damaged; the transparent acrylic plate material is used, so that the nodes of the sensors can be directly observed, and the working conditions of the node modules can be directly known through the change of the indicating lamps of the sensors and the node modules; the assembling process of the packaging box is consistent with the installing process of the sensor node, and the fact that the packaging box is assembled completely means that the installation of the whole sensor node system is completed.
Drawings
FIG. 1 is an overall block diagram of the present invention;
(1) a packaging box main body; (2) fixing the bolt; (3) packaging the box cover; (4) fixing a nut;
FIG. 2 is a view showing the structure of the main body of the enclosure of the present invention;
(5) a bottom right support; (6) an outer right wall; (7) a vent hole; (8) the middle layer right wall; (9) a sensor fixing hole; (10) a middle layer wire guide hole; (11) packaging box fixing holes; (12) an inner right wall; (13) the packaging box is connected with the rear wing; (14) an antenna guide hole; (15) an outer rear wall; (16) an inner front wall; an inner layer left wall (17), a middle layer left wall (18), a PM2.5 sensor fixing block (19), middle layer front walls (20) and (21) an outer layer left wall; (22) a middle layer power line guide hole; (23) the packaging box is connected with the front wing; (24) an outer front wall; (25) a bottom left support; (26) a lower wall;
FIG. 3 is a diagram of the inner layer structure of the present invention;
(27) an inner layer wire guide hole; (28) an outer power line guide hole; (29) an inner power line guide hole;
FIG. 4 is a diagram of the outer layer structure of the present invention;
FIG. 5 is a sensor mounting diagram of the present invention;
(A) a CO sensor; (B) a smoke gas sensor; (C) a temperature and humidity sensor; (D) a PM2.5 sensor; (E) a shock sensor; (F) an SO2 sensor;
Detailed Description
As shown in fig. 1-4, the structure of the enclosure mainly comprises: the packaging box comprises a packaging box cover 3, a fixing bolt 2, a fixing nut 4, a bottom right support 5, an outer right wall 6, a vent hole 7, a middle right wall 8, a sensor fixing hole 9, a middle wire hole 10, a packaging box fixing hole 11, an inner right wall 12, a packaging box connecting rear wing 13, an antenna guide hole 14, an outer rear wall 15, an inner front wall 16, an inner left wall 17, a middle left wall 18, a PM2.5 sensor fixing block 19, a middle front wall 20, an outer left wall 21, a middle power wire guide hole 22, a packaging box connecting front wing 23, an outer front wall 24, a bottom left support 25, a lower wall 26, an inner wire hole 27, an outer power wire guide hole 28 and an inner power wire guide hole 29.
The transparent acrylic plate material is adopted to separately cut and manufacture each part of the packaging box structure, the same part can be simultaneously manufactured in large quantity, and uniform assembly is carried out after all parts are manufactured.
The assembly scheme is as follows:
the assembly of each part structure of the packaging box is adhered by acrylic glue. As shown in fig. 3, the lower wall 25 of the package box is first adhered to the bottom right support 5 and the bottom left support 25 respectively by acrylic glue, then the outer rear wall 15 is adhered to the lower wall edge, the antenna connector of the node module is aligned with the antenna guide hole 14 on the outer rear wall 15, then the inner left wall 17, the inner right wall 12 and the inner front wall 16 are adhered to the outer rear wall 15 and the lower wall 25 respectively, and the node module is limited in the inner structure due to the antenna connector and the inner structure. At the same time, the data lines connecting the node modules and the sensors are led out through the wire guides 22 under the walls of the inner layer, in preparation for later guiding the data lines to the sensors. The power plug and the USB port of the battery pack are connected to the node module located within the inner structure through the inner power line guide hole 29, respectively.
As shown in fig. 5, after the installation of the inner layer structure is completed, the sensors are first installed on the walls of the corresponding middle layer respectively in a bolt-nut connection manner, specifically: the CO sensor A and the smoke gas-sensitive sensor B are connected and arranged on the middle right wall 8 through fixing bolts and nuts, the SO2 sensor F is connected and arranged on the middle front wall 20 through fixing bolts and nuts, the temperature and humidity sensor C is connected and arranged on the middle left wall 18 through fixing bolts and nuts, the PM2.5 sensor D is arranged on the left side inside the packaging box through a fixing block 19, and the vibration sensor E is arranged outside the packaging box through an inner layer wire hole 27, a middle layer wire hole 10 and an outer layer power line guide hole 28 respectively; as shown in fig. 4, the middle left wall 18, the middle right wall 8, and the middle front wall 20 of the tape sensor are then respectively adhered to the outer rear wall 15 and the lower wall 25. Then, the data line led out from the middle wire hole 22 is connected with each corresponding sensor through the middle wire hole 10, the power line of the battery box is connected to the battery box through the middle power line guide hole 22, and the USB line is led out to the outside of the packaging box through the middle power line guide hole 22 and the outer power line guide hole 28 respectively to be connected with a 5V power supply plug.
As shown in fig. 2, the outer layer left wall 21, the outer layer right wall 6 and the outer layer front wall 24 are respectively adhered to the outer layer rear wall 15 and the lower wall 25, and then the enclosure coupling front wing 23 and the enclosure coupling rear wing 13 are respectively adhered to the outer layer front wall 24 and the outer layer rear wall 15. Then, the battery box is placed at the left front part in the packaging box and is fixed by the position relation of the middle layer front wall 20, the outer layer left wall 21 and the outer layer front wall 24;
finally, as shown in fig. 1, the enclosure cover 3 is connected with the enclosure body 1 through the fixing bolt 2 and the fixing nut 4. And at this moment, the assembly of the packaging box is completed, namely the assembly of the sensor node system is completed.

Claims (5)

1.一种用于环境监测的防水传感器节点封装盒,其特征在于:封装盒主体分为内层、中层和外层三层结构,内层、中层和外层结构共用外层后壁(15),封装盒联接前翼(23)与封装盒联接后翼(13)分别与外层前壁(24)和外层后壁(15)连接;封装盒盖(3)同封装盒联接前翼(23)、封装盒联接后翼(13)的连接方式为固定螺栓(2)和固定螺母(4)连接;底部左支座(25)和底部右支座(5)分别置于下壁(26)左右两端,作为封装盒支承件;监测节点模块安装于内层结构之内,各传感器安装于中层结构之上,所述内层结构包括内层左壁(17)、内层右壁(12)和内层前壁(16),其中内层左壁(17)、内层右壁(12)和内层前壁(16)下方均开有导线孔(27),所述前壁(16)还开有电源线导孔(29),所述中层结构包括中层左壁(18)、中层右壁(8)和中层前壁(20),其中左壁(18)、右壁(8)和前壁(20)上方均开有导线孔(10),中层三壁均开有传感器固定孔(9),所述外层结构包括外层左壁(21)、外层右壁(6)、外层后壁(15)和外层前壁(24),其中左壁(21)、右壁(6)、前壁(24)和后壁(15)均开有通风孔,所述后壁还开有天线导孔(14)。1. a waterproof sensor node package box for environmental monitoring, is characterized in that: the package box main body is divided into inner layer, middle layer and outer layer three-layer structure, and inner layer, middle layer and outer layer structure share outer layer rear wall (15 ), the front wing (23) of the packaging box is connected with the rear wing (13) of the packaging box is connected with the outer front wall (24) and the outer rear wall (15) respectively; the packaging box cover (3) is connected with the front wing of the packaging box (23) The connection method of the rear wing (13) of the packaging box is to connect the fixing bolt (2) and the fixing nut (4); the bottom left support (25) and the bottom right support (5) are respectively placed on the lower wall ( 26) The left and right ends are used as packaging box supports; the monitoring node modules are installed in the inner layer structure, and each sensor is installed on the middle layer structure, and the inner layer structure includes the inner layer left wall (17) and the inner layer right wall. (12) and the inner layer front wall (16), wherein the inner layer left wall (17), the inner layer right wall (12) and the inner layer front wall (16) are all provided with wire holes (27) below, and the front wall (16) A power line guide hole (29) is also opened, and the middle layer structure includes a middle layer left wall (18), a middle layer right wall (8) and a middle layer front wall (20), wherein the left wall (18), the right wall ( 8) Conductor holes (10) are opened above the front wall (20), sensor fixing holes (9) are opened on the three walls of the middle layer, and the outer layer structure includes an outer left wall (21), an outer right wall ( 6), the outer rear wall (15) and the outer front wall (24), wherein the left wall (21), the right wall (6), the front wall (24) and the rear wall (15) are all provided with ventilation holes, so The rear wall is also provided with an antenna guide hole (14). 2.根据权利要求1所述的一种用于环境监测的防水传感器节点封装盒,其特征在于:所述各传感器包括温湿度传感器(C)、PM2.5传感器(D)、烟雾气敏传感器(B)、CO传感器(A)、SO2传感器(F)和震动传感器(E),其中CO传感器(A)和烟雾气敏传感器(B)通过固定螺栓螺母连接置于中层右壁(8),SO2传感器(F)通过固定螺栓螺母连接置于中层前壁(20),温湿度传感器(C)通过固定螺栓螺母连接置于中层左壁(18),PM2.5传感器(D)通过固定块(19)置于封装盒内部左侧,震动传感器(E)分别经内层导线孔(27)、中层导线孔(10)和外层电源线导孔(28)置于封装盒外部。2. A waterproof sensor node package box for environmental monitoring according to claim 1, characterized in that: each sensor comprises a temperature and humidity sensor (C), a PM2.5 sensor (D), a smoke gas sensor (B), CO sensor (A), SO2 sensor (F) and vibration sensor (E), wherein the CO sensor (A) and the smoke gas sensor (B) are connected to the middle right wall (8) by fixing bolts and nuts, The SO2 sensor (F) is connected to the front wall of the middle layer (20) through fixing bolts and nuts, the temperature and humidity sensor (C) is connected to the left wall of the middle layer (18) through fixing bolts and nuts, and the PM2.5 sensor (D) is connected through the fixing block ( 19) Placed on the left side of the packaging box, the shock sensor (E) is placed outside the packaging box through the inner wire hole (27), the middle wire hole (10) and the outer power wire hole (28) respectively. 3.根据权利要求1所述的一种用于环境监测的防水传感器节点封装盒,其特征在于:所述监测节点模块的安装是在封装盒装配过程中进行的,在进行封装盒内层结构安装的过程中,将监测节点模块置于内层结构之内,监测节点模块依据天线和内层结构之间的配合关系实现其固定。3. A waterproof sensor node package box for environmental monitoring according to claim 1, characterized in that: the installation of the monitoring node module is carried out during the assembly process of the package box, and when the inner layer of the package box is performed In the process of structure installation, the monitoring node module is placed in the inner layer structure, and the monitoring node module is fixed according to the cooperation relationship between the antenna and the inner layer structure. 4.根据权利要求1所述的一种用于环境监测的防水传感器节点封装盒,其特征在于:所述各传感器安装位置与监测节点模块通过内层结构和中层结构完全分隔。4 . The waterproof sensor node package box according to claim 1 , wherein the installation positions of the sensors are completely separated from the monitoring node module by an inner layer structure and a middle layer structure. 5 . 5.根据权利要求1所述的一种用于环境监测的防水传感器节点封装盒,其特征在于:所述防水封装盒是指封装盒的内层和中层结构上的导线孔、电源线导孔完全错开,而且在其中间填充环氧树脂灌封胶、热熔胶密封材料,或者通过热熔胶对各导孔进行密封。5. A waterproof sensor node package box for environmental monitoring according to claim 1, characterized in that: the waterproof package box refers to the lead holes and the power line lead holes on the inner layer and the middle layer structure of the package box It is completely staggered, and epoxy potting glue, hot melt adhesive sealing material is filled in the middle, or each via hole is sealed by hot melt adhesive.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202364505U (en) * 2011-11-23 2012-08-01 上海波顿无线传感技术有限公司 Node casing for environmental monitoring internet of things
WO2015020680A1 (en) * 2013-08-09 2015-02-12 Therm-O-Disc, Incorporated Wireless temperature and/or humidity sensor assembly
CN104378934A (en) * 2014-11-10 2015-02-25 江苏大学 Wireless sensor node shell resistant to high-temperature and high-humidity environment
CN205607446U (en) * 2016-05-11 2016-09-28 南京高华科技股份有限公司 Wireless sensor
CN206378149U (en) * 2016-11-10 2017-08-04 温州瓯科科技有限公司 A kind of intelligent power distribution communication wireless senser based on QoS

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202364505U (en) * 2011-11-23 2012-08-01 上海波顿无线传感技术有限公司 Node casing for environmental monitoring internet of things
WO2015020680A1 (en) * 2013-08-09 2015-02-12 Therm-O-Disc, Incorporated Wireless temperature and/or humidity sensor assembly
CN104378934A (en) * 2014-11-10 2015-02-25 江苏大学 Wireless sensor node shell resistant to high-temperature and high-humidity environment
CN205607446U (en) * 2016-05-11 2016-09-28 南京高华科技股份有限公司 Wireless sensor
CN206378149U (en) * 2016-11-10 2017-08-04 温州瓯科科技有限公司 A kind of intelligent power distribution communication wireless senser based on QoS

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