CN109557262B

CN109557262B - Air detection device

Info

Publication number: CN109557262B
Application number: CN201910041736.6A
Authority: CN
Inventors: 苗永福
Original assignee: Midea Intelligent Lighting and Controls Technology Co Ltd
Current assignee: Meizhi Photoelectric Technology Co ltd
Priority date: 2019-01-16
Filing date: 2019-01-16
Publication date: 2024-04-26
Anticipated expiration: 2039-01-16
Also published as: CN109557262A

Abstract

The present invention provides an air detection device, comprising: a rear housing assembly having an assembly portion for connection with a wall; the front shell assembly comprises a front shell and a functional device, the front shell is connected to the rear shell assembly, a boss protruding towards the front side is formed on the front shell, a concave cavity is formed in the periphery of the inner surface of the boss, and the functional device is arranged in the concave cavity and at least comprises an air detection element. The air detection device that this scheme provided connects in the wall body realization fixed, can avoid keeping air detection device like this to save the management cost, reduce engineering project expenditure, and the product can be adapted to engineering project installation well, when realizing guaranteeing product detection precision, promotes product in wall body assembly reliability and assembly efficiency.

Description

Air detection device

Technical Field

The invention relates to the field of air detection devices, in particular to an air detection device.

Background

The existing air detection device for detecting the environmental quality is basically desktop-type movable, the difficulty of engineering delivery is high, and a user generally needs to install products to deliver the products for a period of several months.

There is also an air detection device integrally embedded in a wall, and the integrally embedded air detection device generally adopts a finish-fitting mode and is not suitable for engineering project installation.

Disclosure of Invention

In order to solve at least one of the above problems, an object of the present invention is to provide an air detection device.

To achieve the above object, an embodiment of a first aspect of the present invention provides an air detection device, including: a rear housing assembly having an assembly portion for connection with a wall; the front shell assembly comprises a front shell and a functional device, the front shell is connected to the rear shell assembly, a boss protruding towards the front side is formed on the front shell, a concave cavity is formed in the periphery of the inner surface of the boss, the functional device is arranged in the concave cavity, and the functional device at least comprises an air detection element.

Compared with a desktop type movable air detection device, the air detection device provided by the embodiment of the invention is fixedly connected with a wall body, and the air detection device is prevented from being stored by being arranged on the wall body, so that the management cost is saved, and the expenditure of engineering projects is reduced.

More specifically, in this structure, air detection device includes backshell assembly and preceding shell assembly two big parts, locate the cavity of preceding shell assembly with air detection component, like this, backshell assembly and the assembly process of wall body can not cause harmful effects to air detection component basically, do benefit to the operating accuracy who guarantees air detection component, in turn, air detection component also can not occupy the space of backshell assembly, can prevent like this to cause the interference to the assembly operation of backshell assembly and wall body, the product is more convenient with the assembly of wall body, simultaneously also make the product can adapt to engineering project installation well, when realizing guaranteeing product detection precision, promote product reliability and assembly efficiency at wall body assembly.

In addition, the air detection device in the above embodiment provided by the present invention may further have the following additional technical features:

In the above technical scheme, the side wall of the boss is provided with a vent hole, and the concave cavity is communicated with the environment through the vent hole.

In this scheme, set up the ventilation hole on the lateral wall of boss to supply the air in the cavity to flow with the air in the air detection device outside, this structure is when realizing the product detection purpose that admits air, through making the ventilation hole form in the product side, has not only promoted the appearance quality of product, and the usable boss forms the clearance effect to the ventilation hole, like this, the ventilation hole is difficult for being sheltered from, makes product detection data more accurate reliable.

In the above technical solution, the vent hole is provided at a position of the side wall of the boss corresponding to the air detecting element.

In this scheme, through making ventilation hole region cover to air detection element, this can guarantee that air detection element can more fully contact with the air in the air detection device outside to promote the accuracy of air detection element detection data.

In any of the above solutions, the functional device further includes: the functional circuit board is provided with a display module, the display module is electrically connected with the air detection element, wherein a light transmission area is formed on the top surface of the boss, the functional circuit board is positioned in the concave cavity, and the display module corresponds to the light transmission area.

In this scheme, set up the printing opacity region at the top surface of boss to make the display module assembly of function circuit board in the cavity correspond to the printing opacity region, like this, the light of display module assembly can pass the printing opacity region after the surface direct presentation in the printing opacity region, wherein, display module assembly is connected with air detection component electricity, and correspondingly, air detection component's detection information can directly show the output at the printing opacity region surface of boss top surface, and the user can obtain the testing result directly perceivedly, and it is more convenient to use.

In the above technical scheme, the front shell comprises a shell body and a display surface cover, the shell body is provided with a boss frame, the top surface of the boss frame is provided with a mounting hole, the display surface cover is a light-transmitting part, and the display surface cover is connected to the top surface of the boss frame and covers the mounting hole.

In this scheme, the region that the display surface lid corresponds the mounting hole forms into the printing opacity region for air detection element's detection information can be on the display surface lid display output, and the user can obtain the testing result directly perceivedly like this, and it is more convenient to use, and this structure also has processing simple and convenient, with low costs advantage.

In any of the above technical solutions, the air detection element is disposed on the functional circuit board.

In the scheme, the air detection element is also arranged on the functional circuit board, so that functional devices in the concave cavity are distributed in an integrated manner, and the assembly of products is facilitated.

In the above technical scheme, the display module and the air detection element are distributed on two sides of the functional circuit board.

In this scheme, locate one side of function circuit board with the display module, locate the opposite side of function circuit board with air detection component, namely, the display module is located two faces that function circuit board plate body is relative with air detection component, like this, when realizing that function circuit board bears to display module and air detection component, make display module and air detection component distribute compacter, save function circuit board area, do benefit to simplifying the overall dimension of product, and the counterpoint equipment of display module and light-transmitting area also can be prevented like this and disturbed by air detection component, more do benefit to guaranteeing the alignment of display module and light-transmitting area, promote product assembly efficiency and yields, in addition, such structure, the air inlet influence that display module received is also little, the display module is difficult to the laying dust, the display effect is better, the life-span is longer.

In any of the above technical solutions, the rear shell assembly includes a rear shell and a power circuit board disposed in the rear shell, the rear shell is used for locking with a wall, the front shell is connected to the rear shell, and the functional circuit board is electrically connected with the power circuit board.

In this scheme, locate the backshell assembly with power supply circuit board, like this, more make things convenient for in power supply circuit board follow wall body side joint electricity and connect for the product installation is swift convenient.

In the above technical scheme, the air detection device further includes: the connecting wire is provided with a first interface on the functional circuit board, the power circuit board is provided with a second interface, the connecting wire is connected with the first interface and the second interface, wherein the connecting wire is connected with the first interface in a coupling way in an adapting way, and/or the connecting wire is connected with the second interface in an adapting way.

In the scheme, the connecting wire is connected with the second interface and/or the first interface in a plug-and-pull mode in a coupling way, so that quick-dismantling installation between the connecting wire and the second interface and/or the first interface is realized, and at least one of the second interface and the first interface is connected with the connecting wire in an assembling way after the rear shell assembly is installed on a wall body, so that the functional circuit board is connected with the power circuit board, and then the front shell is connected with the rear shell assembly to realize completion of assembly, so that the whole assembling process has convenience.

In the above technical scheme, the backshell assembly still includes: and the clapboard is connected with the rear shell and encapsulates the power circuit board in the rear shell.

In this scheme, set up the baffle and encapsulate power circuit board in the backshell, on the one hand, form the protective effect to power circuit board, prevent that the backshell assembly from installing the damage power circuit board in the construction operation in wall body, avoid preceding shell assembly and backshell assembly installation back power circuit board to receive the oppression simultaneously, guarantee product reliability, on the other hand, can effectively separate functional circuit board and power circuit board after preceding shell assembly and backshell assembly are installed, can reduce the mutual interference between power circuit board and functional circuit board and the air detection component like this.

In any of the above technical solutions, a step portion protruding rearward is configured at a rear end of the rear case assembly.

In this scheme, set up the ladder portion that extends backward at the rear end of backshell assembly, like this, utilize the ladder portion can with the not unidimensional hole realization on the wall body inlay and insert the adaptation for the product is applicable to multiple installation scene, promotes the commonality of product.

In any of the above technical solutions, the assembly portion is configured to be connected with a reserved structure of the wall.

It is understood that the reserved structure of the wall body may be a general existing structure of the wall body, for example, a reserved hole for assembling a switch, a reserved hole for assembling a network cable interface, a reserved hole for installing an air conditioner refrigerant pipe, and the like.

In this scheme, dispose the assembly department to be suitable for with the reserved structure of wall body be connected, like this, the reserved structure of usable wall body is connected with the product and is realized adorning admittedly the product, need not to establish the fixed air detection device of structure in addition on the wall body, and the assembly is more convenient, and also more does benefit to guaranteeing the wall body integrality, avoids damaging the wall body problem, promotes engineering delivery quality.

In the above technical scheme, the assembly portion includes mounting hole and fastener, fastener and the preformed hole adaptation of wall body, wherein, the fastener cross-under in the mounting hole, just the fastener be used for with the preformed hole is connected in order to lock backshell assembly and wall body.

In this scheme, set up the assembly portion and include pilot hole and fastener, for example, establish the pilot hole on the backshell, the fastener cross-under is in the pilot hole and with the preformed hole of wall body (preformed hole is for example for installing wall switch's hole) be connected in order to lock backshell assembly and wall body, this structure can realize that the product reliability is adorned admittedly, and its mounting means is the same basically with wall switch, assembly commonality and efficiency are higher, more be suitable for engineering project installation, and also make the product can form a complete set with the wall switch panel of outward appearance design style better, realize the environment that it was installed of adaptation well.

In any of the above solutions, the functional device further includes: and the wireless communication module is electrically connected with the air detection element.

In this scheme, design function device still includes wireless communication module, like this, air detection component accessible wireless communication module establishes with internet and terminal equipment (such as cell-phone, computer etc.) between for the product can be networking after with the information upload software that detects (uploading APP, application), and can form the linkage with household electrical appliances such as clarifier, air conditioner.

In any of the foregoing solutions, the front housing assembly further includes a connection structure adapted to lock the functional device within the cavity.

In this scheme, utilize connection structure to lock functional device in the cavity, like this, connect preceding shell assembly in the in-process of backshell assembly, functional device is difficult to deviate from, and the product assembly is more convenient, swift.

In any of the above technical solutions, the front shell is provided with a first clamping portion, the rear shell assembly is provided with a second clamping portion, and the first clamping portion is clamped with the second clamping portion to lock the front shell assembly and the rear shell assembly.

In this scheme, the preceding shell is equipped with first joint portion, and the backshell assembly is equipped with second joint portion, specifically sets up second joint portion on the backshell for joint assembly between preceding shell assembly and the backshell assembly, when guaranteeing the assembly reliability, promotes the assembly convenience of product.

In any of the above technical solutions, the number of the air detection elements is a plurality, and the plurality of the air detection elements include one or more of formaldehyde sensor, PM2.5 sensor, and carbon dioxide sensor.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a structure of an air detection device and a wall according to an embodiment of the present invention;

FIG. 2 is a schematic view of a first exploded structure of an air detection device according to an embodiment of the present invention;

fig. 3 is an enlarged schematic view of the portion a shown in fig. 2;

FIG. 4 is a schematic view of the structure of a front housing assembly of an air detection device according to an embodiment of the present invention;

FIG. 5 is a schematic view showing a second exploded structure of the air detection device according to an embodiment of the present invention;

fig. 6 is an enlarged schematic view of the portion B shown in fig. 5;

FIG. 7 is a schematic diagram of a functional circuit board and air detection component assembly according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a functional circuit board and display module assembly according to an embodiment of the invention;

FIG. 9 is a schematic view of the structure of a septum in one embodiment of the present invention;

FIG. 10 is a schematic diagram of a power circuit board according to an embodiment of the invention;

FIG. 11 is a schematic view of the structure of the rear housing in one embodiment of the invention;

wherein, the correspondence between the reference numerals and the component names in fig. 1 to 11 is:

100 front shell assembly, 110 front shell, 111 boss, 112 cavity, 113 shell body, 1131 boss frame, 1132 mounting hole, 1133 flange, 114 display surface cover, 115 vent hole, 120 air detection element, 121 formaldehyde sensor, 122 PM2.5 sensor, 123 carbon dioxide sensor, 130 function circuit board, 131 display module, 132 fixing hole, 133 first interface, 140 wireless communication module, 150 screw, 160 first joint portion, 200 back shell assembly, 210 back shell, 211 bayonet, 212 buckle, 213 accommodation groove, 214 step portion, 215 assembly hole, 216 fastener, 220 power circuit board, 221 second interface, 222 first notch, 230 baffle, 231 dodge port, 232 snap-in, 233 second notch, 250 second joint portion, 300 connecting wire, 310 plug terminal, 400 wall body.

Detailed Description

In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

Air detection devices according to some embodiments of the present invention are described below with reference to fig. 1 to 11.

As shown in fig. 1 and 2, an air detection device provided in an embodiment of a first aspect of the present invention includes: front housing assembly 100 and rear housing assembly 200.

Specifically, the rear case assembly 200 has a fitting portion for connection with the wall 400; as shown in fig. 1, 2 and 4, the front case assembly 100 includes a front case 110 and a functional device, the front case 110 is connected to the rear case assembly 200, a boss 111 protruding toward the front side is configured on the front case 110, and a cavity 112 is surrounded by an inner surface of the boss 111, wherein the functional device is disposed in the cavity 112, and the functional device includes at least an air detection element 120.

Compared with the desktop movable air detection device, the air detection device provided by the embodiment of the invention is fixedly connected with the wall 400, and the air detection device is mounted on the wall 400, so that the air detection device is prevented from being stored, thereby saving the management cost and reducing the expenditure of engineering projects.

Compared with the air detection element which is generally embedded with the wall body, the air detection device comprises two parts, namely the rear shell assembly 200 and the front shell assembly 100, wherein the air detection element 120 is arranged in the concave cavity 112 of the front shell 110 of the front shell assembly 100, so that the assembling process of the rear shell assembly 200 and the wall body 400 basically does not cause adverse effects on the air detection element 120, the working accuracy of the air detection element 120 is guaranteed, the air detection element 120 does not occupy the space of the rear shell assembly 200, the interference on the assembling operation of the rear shell assembly 200 and the wall body 400 can be prevented, the assembling of a product and the wall body 400 is more convenient, meanwhile, the product can be well adapted to the installation of engineering projects, the assembling reliability and the assembling efficiency of the product on the wall body 400 are improved, and the boss modeling of the product can be well matched with wall switch panel and other devices with the same appearance style, and the wall switch and other devices are matched to form a series of products.

In one embodiment of the present invention, as shown in fig. 1 and 2, a vent hole 115 is provided on a sidewall of the boss 111, and the cavity 112 communicates with the environment through the vent hole 115. The boss 111 can be utilized to form a clearance effect on the vent hole 115, so that the vent hole 115 is not easy to be blocked, and the product detection data is more accurate and reliable.

More specifically, the vent hole 115 is provided at a position of the side wall of the boss 111 corresponding to the air detection element 120, that is, such that the air detection element 120 is opposed to the vent hole 115. This ensures that the air detection element 120 is more fully in contact with the air outside the air detection device, thereby improving the accuracy of the detection data of the air detection element 120.

In other embodiments, vent 115 may also be provided on the top surface of boss 111.

In other embodiments, the vent hole 115 may not be provided on the boss 111, but may be provided to form a vent gap between the front and rear case assemblies 100 and 200, for example, the junction between the front and rear case assemblies 100 and 200 may not be completely closed to form a vent gap, so that the cavity 112 communicates with the environment through the vent gap.

In one embodiment of the present invention, as shown in fig. 5, the functional device further includes a functional circuit board 130, a display module 131 is disposed on the functional circuit board 130, the display module 131 is electrically connected to the air detection element 120, wherein a light-transmitting area is configured on a top surface of the boss 111, the functional circuit board 130 is located in the cavity 112, and the display module 131 corresponds to the light-transmitting area. In this way, the detection information of the air detection element 120 can be directly displayed and output on the surface of the light-transmitting area on the top surface of the boss 111, so that a user can intuitively obtain the detection result, and the use is more convenient.

Specifically, as shown in fig. 5, the front case 110 includes a case body 113 and a display surface cover 114, the case body 113 and the display surface cover 114 are separate components, the case body 113 is configured with a boss frame 1131, a top surface of the boss frame 1131 is provided with a mounting hole 1132, the display surface cover 114 is a light-transmitting component, and the display surface cover 114 is connected to the top surface of the boss frame 1131 and covers the mounting hole 1132, so that the boss frame 1131 and the display surface cover 114 jointly construct the boss 111, and a region of the display surface cover 114 corresponding to the mounting hole 1132 is formed into a light-transmitting region, so that the detection information of the air detection element 120 can be displayed and output on the display surface cover 114, thus, a user can intuitively obtain a detection result, the use is more convenient, and the structure also has the advantages of simple processing and manufacturing and low cost.

In one embodiment of the present invention, as shown in FIG. 7, the air detection element 120 is provided on a functional circuit board 130. This allows for integrated distribution of the functional devices within the cavity 112, facilitating assembly of the product.

Preferably, the display modules 131 and the air detection elements 120 are distributed on two sides of the functional circuit board 130. That is, for example, the display module 131 and the air detection element 120 are located on two opposite boards of the board body of the functional circuit board 130, so that the functional circuit board 130 bears the load on the display module 131 and the air detection element 120, and meanwhile, the display module 131 and the air detection element 120 are distributed more compactly, the area of the functional circuit board 130 is saved, the whole size of a product is reduced, and the alignment assembly of the display module 131 and the light transmission area is prevented from being interfered by the air detection element 120 by the design, the alignment of the display module 131 and the light transmission area is ensured, the product assembly efficiency and the yield are improved, and in addition, due to the structure, the influence of air inlet to which the display module 131 is subjected is small, dust accumulation of the display module 131 is not easy, the display effect is better, and the service life is longer.

In one embodiment of the present invention, as shown in fig. 1, the rear housing assembly 200 includes a rear housing 210 and a power circuit board 220 disposed in the rear housing 210, the rear housing 210 is used to be locked with the wall 400, the front housing 110 is connected to the rear housing 210, and the functional circuit board 130 is electrically connected to the power circuit board 220. The power supply circuit board 220 is arranged in the rear shell assembly 200, so that the rear shell assembly 200 is arranged on the wall 400, and the power supply interface on the wall 400 can be directly electrically connected with the power supply circuit board 220, and the power supply circuit board 220 is more convenient to electrically connect from the side of the wall 400, so that the product is fast and convenient to install.

Preferably, as shown in fig. 1, the air detection device further includes a connection wire 300, the functional circuit board 130 is provided with a first interface 133, the power circuit board 220 is provided with a second interface 221, the connection wire 300 is connected with the first interface 133 and the second interface 221, so as to realize electrical conduction between the first interface 133 and the second interface 221, wherein, as shown in fig. 2, in the assembly relationship, the connection wire 300 and the second interface 221 are adapted to be coupled and connected in a plug-in manner, and the connection wire 300 and the first interface 133 are fixedly connected. In this way, after the rear housing assembly 200 is mounted on the wall 400, the second interface 221 and the connection line 300 are connected in an assembled manner, that is, the functional circuit board 130 and the power circuit board 220 are connected, and then the front housing 110 is connected to the rear housing assembly 200 to complete the assembly, so that the whole assembly process has convenience.

More specifically, as shown in fig. 2 and 8, one end of the connection wire 300 is connected to the first interface 133 of the functional circuit board 130, the other end of the connection wire 300 is provided with a plug terminal 310, the second interface 221 is a terminal structure adapted to be plugged with the plug terminal 310, for example, the plug terminal 310 is a plug, the second interface 221 is a socket, or vice versa, the plug terminal 310 is a socket, the second interface 221 is a plug, and the plug is inserted into the socket, so that the connection wire 300 connects the functional circuit board 130 with the power circuit board 220.

In other embodiments, in terms of assembly, the connection line 300 and the first interface 133 may be configured to be coupled and connected in a pluggable manner, and the connection line 300 and the second interface 221 may be fixedly connected.

In other embodiments, in terms of assembly, the connection line 300 and the first interface 133 may also be configured to be coupled and connected in a plug-in manner, and the connection line 300 and the second interface 221 may be configured to be coupled and connected in a plug-in manner.

In one embodiment of the present invention, as shown in fig. 1,2 and 5, the rear housing assembly 200 further includes a partition 230, and the partition 230 is connected to the rear housing 210 and encapsulates the power circuit board 220 within the rear housing 210. The partition 230 is used to protect the power circuit board 220, prevent the power circuit board 220 from being damaged during the construction operation of the rear case assembly 200 mounted on the wall 400, and prevent the power circuit board 220 from being pressed after the front case assembly 100 and the rear case assembly 200 are mounted, so as to ensure the reliability of the product.

Specifically, as shown in fig. 1 and 11, the rear case 210 is constructed with a receiving groove 213 therein, the power circuit board 220 is received in the receiving groove 213, and the partition 230 is fitted to the rear case 210 and blocks the notch of the receiving groove 213 to encapsulate the power circuit board 220 in the receiving groove 213.

More specifically, as shown in fig. 6, a buckle 212 is provided on a side wall of the accommodating groove 213, and the power circuit board 220 is located in the accommodating groove 213 and is clamped with the buckle 212 to keep the power circuit board 220 stable in the accommodating groove 213. In addition, the partition 230 is embedded in the accommodating groove 213 and is closer to the notch of the accommodating groove 213 than the power circuit board 220, wherein, as shown in fig. 3 and 9, a bayonet 211 is further provided on the side wall of the accommodating groove 213, a clamping protrusion 232 is provided on the periphery of the partition 230, and the partition 230 is clamped into the bayonet 211 by the clamping protrusion 232 to be stable in the accommodating groove 213.

Of course, the power circuit board 220 and the rear case 210 are not limited to the form of fixing by the buckle 212, and the form of fixing the power circuit board 220 by pressing the power circuit board 220 with the partition 230 may be designed. The space between the partition 230 and the rear case 210 is not limited to the above-described fixing form in which the locking protrusion 232 is locked to the locking hole 211, and may be a screw fixing form, for example.

Further, as shown in fig. 9, the partition 230 is provided with an avoidance port 231, and the avoidance port 231 corresponds to the second interface 221 and is used for the second interface 221 to pass through to be connected with the connecting line 300.

In one embodiment of the present invention, as shown in fig. 9, a second notch 233 is provided in the partition 230 for avoiding the fitting portion.

Further, as shown in fig. 10, a first notch 222 for avoiding the assembly part is provided on the power circuit board 220.

More specifically, the rear housing assembly 200 includes two fitting portions, two second notches 233 are provided on the partition 230, two first notches 222 are provided on the power circuit board 220, wherein one fitting portion is embedded into one second notch 233 and one first notch 222, and further preferably, the fitting portion is matched with the first notch 222 and/or the second notch 233, so as to further realize positioning and limiting of the partition 230 and/or the power circuit board 220 by using the fitting portion

In one embodiment of the present invention, as shown in fig. 1 and 2, the rear end of the rear housing assembly 200 is configured with a rearwardly protruding step 214. The rear end of the rear housing 210, such as the rear housing assembly 200 in particular, is configured with a rearwardly projecting step 214. The step portion 214 can be used to realize insertion and fit with holes (e.g. cassettes) of different sizes on the wall 400, so that the product can be suitable for various installation scenes, and the universality of the product is improved.

More specifically, as shown in fig. 1, the step portion 214 may be embodied in a two-stage stepped structure, so that an insert fit between the rear case 210 and at least two cassettes may be achieved, and a stable abutting fit of a step surface of the step with a wall surface may be ensured. Of course, the number of steps of the step portion 214 is not limited to the two steps given above, and the step portion 214 may be designed to have three steps, four steps or more steps according to the need.

In one embodiment of the present invention, the wall 400 is provided with a reserved structure such as a reserved hole for assembling a switch, a reserved hole for assembling a network cable interface, and the like. The fitting portion is configured to be coupled to a reserved structure of the wall 400. Like this, the reservation structure of usable wall body 400 is connected with the product and is realized adorning admittedly to the product, need not to establish the structure in addition on wall body 400 and fix air detection device, and the assembly is more convenient, and also more does benefit to guaranteeing wall body 400 integrality, avoids damaging wall body 400 problem, promotes engineering delivery quality.

More specifically, the fitting portion includes a fitting hole 215 and a fastener 216, the fastener 216 fitting with a preformed hole of the wall 400, wherein the fastener 216 is threaded into the fitting hole 215 and the fastener 216 is configured to connect with the preformed hole to lock the backshell assembly 200 with the wall 400.

More specifically, the rear case 210 is provided with a fitting hole 215, and the fastener 216 is coupled to the fitting hole 215 and coupled to a predetermined hole (for example, a hole for mounting a wall switch) of the wall 400 to lock the rear case assembly 200 to the wall 400. The structure can realize the reliable fixing of the product, the installation mode of the structure is basically the same as that of a wall switch, the assembly universality and the efficiency are higher, the structure is more suitable for the installation of engineering projects, and the product can be better matched with a wall type switch panel with the same appearance design style, so that the installation environment of the wall type switch panel is well adapted.

In other embodiments, the reserved structure may be a wall hole adapted to the outer contour of the rear housing assembly 200, and the rear housing assembly 200 is inserted into the wall hole in an interference manner to achieve fixation.

In one embodiment of the present invention, as shown in fig. 1, the functional device further includes a wireless communication module 140, and the wireless communication module 140 is electrically connected to the air detection element 120. In this way, the air detection element 120 can establish wireless communication with the internet and terminal devices (such as mobile phones, computers, etc.) through the wireless communication module 140, so that the product can upload detected information to software (such as uploading APP) after networking, and can form linkage with household appliances such as a purifier, an air conditioner, etc.

In one embodiment of the invention, front housing assembly 100 further includes a connection structure adapted to lock the functional device within cavity 112. In this way, in the process of connecting the front housing assembly 100 to the rear housing assembly 200, the functional devices are not easy to be separated, and the product assembly is more convenient and rapid.

More specifically, as shown in fig. 5, 7 and 8, the air detection element 120 and the display module 131 are integrated with the functional circuit board 130, and the connection structure is configured to lock the functional circuit board 130 in the cavity 112. The connection structure specifically includes a screw 150 and a fixing hole 132 disposed on the functional circuit board 130, where the screw 150 is threaded through the fixing hole 132 and screwed into the front shell 110, so as to fix the functional circuit board 130 and the front shell 110, thereby locking the functional circuit board 130 in the cavity 112.

Preferably, the functional circuit board 130 is provided with a plurality of fixing holes 132 around, and accordingly, the functional circuit board 130 is fixed to the front case 110 by a plurality of screws 150, so as to further improve the connection firmness between the functional circuit board 130 and the front case 110.

In one embodiment of the present invention, the front case 110 is provided with a first clamping portion 160, and the rear case assembly 200 is provided with a second clamping portion 250, and the first clamping portion 160 is clamped with the second clamping portion 250 to lock the front case assembly 100 and the rear case assembly 200.

In this solution, the front shell 110 is provided with a first clamping portion 160, and the rear shell assembly 200 is provided with a second clamping portion 250, for example, the rear shell 210 is provided with the second clamping portion 250, so that the front shell assembly 100 and the rear shell assembly 200 are assembled in a clamping manner, the reliability of assembly is ensured, and meanwhile, the convenience of assembly of the product is improved.

Alternatively, the first clamping portion 160 and the second clamping portion 250 may be specifically formed as a clamping fit between a convex buckle and a clamping groove, or may be a corresponding clamping fit between two convex buckles.

In other embodiments, the front and rear housing assemblies 110 and 200 may be screwed instead of or in addition to the snap-fit connection.

In other embodiments, the front shell 110 and the rear shell assembly 200 may be magnetically fixed, for example, a magnet is disposed on the front shell 110, and another magnet with a magnetic pole opposite to that of the magnet on the front shell 110 is disposed on the rear shell 210 of the rear shell assembly 200, so that the front shell 110 and the magnetic stripe of the rear shell 210 are coupled and connected in a magnetically attractive manner, thereby realizing that the front shell 110 is locked to the rear shell 210, and further realizing that the front shell assembly 100 is connected to the rear shell assembly 200.

In one embodiment of the present invention, the number of air detection elements 120 is a number, and the number of air detection elements 120 includes one or more of formaldehyde sensor 121, PM2.5 sensor 122, carbon dioxide sensor 123.

In one embodiment of the present invention, as shown in fig. 1 to 10, the air detection device includes a front case assembly 100 and a rear case assembly 200.

As shown in fig. 5, the front case assembly 100 includes a front case 110, a functional circuit board 130 (preferably, a PCB board), screws 150 for fixing the functional circuit board 130, an air detection element 120, and the like.

As shown in fig. 5, the rear housing assembly 200 includes a rear housing 210, a power circuit board 220 (preferably a PCB board), a partition 230, and the like.

As shown in fig. 7, the number of air detection elements 120 is three, and corresponds to a formaldehyde sensor 121, a PM2.5 sensor 122, and a carbon dioxide sensor 123. The functional circuit board 130 is a component including a liquid crystal display panel, that is, a display assembly is disposed on the functional circuit board 130, and the formaldehyde sensor 121, the PM2.5 sensor 122, and the carbon dioxide sensor 123 are respectively welded on the functional circuit board 130, so that the formaldehyde sensor 121, the PM2.5 sensor 122, the carbon dioxide sensor 123, and the functional circuit board 130 are formed together into a functional board.

As shown in fig. 1,2 and 4, the front case 110 specifically includes a display surface cover 114 and a case body 113, a boss frame 1131 is configured on the case body 113, a mounting hole 1132 and flanges 1133 located at two sides of the mounting hole 1132 are provided on the top surface of the boss frame 1131, the display surface cover 114 is placed on the flanges 1133 from the outside and seals the mounting hole 1132, and double-sided adhesive tape is used between the display surface cover 114 and the flanges 1133 to make the display surface cover 114 and the boss frame 1131 construct the boss 111. A cavity 112 is formed inside the boss 111, and the functional board is located in the cavity 112. In addition, the front case 110 is provided with a screw column, the functional board is provided with a fixing hole 132, and the functional board is fixed to the front case 110 by a screw 150, thereby being locked in the cavity 112.

More specifically, as shown in fig. 1 and 9, the display component is a liquid crystal display module 131, and the display component is disposed on the functional circuit board 130 near the surface of the display surface cover 114, so that the display surface of the display component is in close contact with the display surface cover 114, and the display surface cover 114 is preferably made of a semi-permeable material, so that the data sensed by each air detection element 120 can be displayed through the display component in real time.

As shown in fig. 6 and 10, a bayonet 211 and a buckle 212 are provided on the rear shell 210, and the bayonet 211 is clamped with a clamping protrusion 232 on the partition 230, so that the rear shell 210 is fixed with the partition 230; the buckle 212 is clamped with the power circuit board 220, so that the rear shell 210 is fixed with the power circuit board 220.

Further, as shown in fig. 1 and 8, the installation method of the air detection device and the wall 400 is the same as that of a common wall switch, two fasteners 216 (preferably screws) are used to fix two sides of the rear shell 210 in a standard wall cassette, a second interface 221 is provided on the power circuit board 220, the second interface 221 is specifically a connection base (female plug), a connection wire 300 is provided on the functional circuit board 130, a socket (male plug) is provided at the end of the connection wire 300, the socket (male plug) and the connection base (female plug) are inserted, and then the front shell assembly 100 is fastened on the rear shell assembly 200 to complete the assembly.

Further, as shown in fig. 1 and 4, a vent hole 115 is provided on a sidewall of the boss 111 of the front case 110, and a region of the vent hole 115 just covers the formaldehyde sensor 121, the PM2.5 sensor 122, and the carbon dioxide sensor 123 on the functional circuit board 130. The gas sensors can be fully contacted with the air outside the product, so that the accuracy of data is ensured. More specifically, the ventilation holes 115 may be formed around the boss 111, on both sides of the boss 111, or the like, according to the distribution of the formaldehyde sensor 121, the PM2.5 sensor 122, the carbon dioxide sensor 123.

In addition, as shown in fig. 1, the functional circuit board 130 is further provided with a wireless communication module 140, and the wireless communication module 140 is utilized to ensure that the product can upload the sensed data to the APP after networking, and can be linked with household appliances such as a purifier, an air conditioner and the like.

The air detection device provided by the embodiment can be installed on a wall body while achieving the detection purpose, so that the management cost can be saved, the engineering delivery is convenient, the air detection device is suitable for engineering project installation, has the advantages of firm installation and convenience and rapidness in installation, and in addition, the boss shape and the assembly form of the air detection device can be well matched with a wall type switch panel with the same appearance style, and a serialized product is formed by being matched with a wall switch.

In the present disclosure, the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or unit referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, should not be construed as limiting the present invention.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An air detection device, comprising:

a rear housing assembly having an assembly portion for connection with a wall;

The front shell assembly comprises a front shell and a functional device, the front shell is connected with the rear shell assembly, a boss protruding towards the front side is formed on the front shell, a concave cavity is formed by surrounding the inner surface of the boss, the functional device is arranged in the concave cavity, and the functional device at least comprises an air detection element;

the front shell comprises a shell body and a display surface cover, wherein the shell body is provided with a boss frame, the top surface of the boss frame is provided with a mounting hole, the display surface cover is a light-transmitting part, and the display surface cover is connected to the top surface of the boss frame and covers the mounting hole;

the rear shell assembly comprises a rear shell and a power circuit board arranged in the rear shell; and the clapboard is connected with the rear shell and encapsulates the power circuit board in the rear shell.

2. The air detection device according to claim 1, wherein,

And the side wall of the boss is provided with a vent hole, and the concave cavity is communicated with the environment through the vent hole.

3. An air detection device according to claim 2, wherein,

The vent holes are formed in the side walls of the boss at positions corresponding to the air detection elements.

4. An air detection apparatus according to any one of claims 1 to 3, wherein the functional device further comprises:

The functional circuit board is provided with a display module, the display module is electrically connected with the air detection element, wherein a light transmission area is formed on the top surface of the boss, the functional circuit board is positioned in the concave cavity, and the display module corresponds to the light transmission area.

5. The air detection device according to claim 4, wherein,

The air detection element is arranged on the functional circuit board.

6. The air detection device according to claim 5, wherein,

The display module and the air detection elements are distributed on two sides of the functional circuit board.

7. The air detection device according to claim 4, wherein,

The back shell is used for being locked with the wall body, the front shell is connected with the back shell, and the functional circuit board is electrically connected with the power circuit board.

8. The air detection device of claim 7, further comprising:

The functional circuit board is provided with a first interface, the power circuit board is provided with a second interface, the connecting line is connected with the first interface and the second interface, wherein,

The connection line and the first interface are adapted to be coupled and connected in a pluggable manner, and/or

The connecting wire and the second interface are adapted to be coupled and connected in a plug-in mode.

9. An air detection device according to any one of claims 1 to 3, wherein,

The rear end of the rear shell assembly is provided with a step part protruding backwards.

10. An air detection device according to any one of claims 1 to 3, wherein,

The assembly portion is configured to be connected with a reserved structure of a wall.

11. The air detection device according to claim 10, wherein,

The assembly part comprises an assembly hole and a fastener, wherein the fastener is matched with a reserved hole of the wall body, the fastener is connected to the assembly hole in a penetrating mode, and the fastener is used for being connected with the reserved hole to lock the rear shell assembly and the wall body.

12. An air detection apparatus according to any one of claims 1 to 3, wherein the functional device further comprises:

And the wireless communication module is electrically connected with the air detection element.

13. An air detection device according to any one of claims 1 to 3, wherein,

The front housing assembly further includes a connection structure adapted to lock the functional device within the cavity.

14. An air detection device according to any one of claims 1 to 3, wherein,

The front shell is provided with a first clamping part, the rear shell assembly is provided with a second clamping part, and the first clamping part is clamped with the second clamping part to lock the front shell assembly and the rear shell assembly.

15. An air detection device according to any one of claims 1 to 3, wherein,

The number of the air detection elements is a plurality, and the air detection elements comprise one or more of formaldehyde sensors, PM2.5 sensors and carbon dioxide sensors.