CN220471831U

CN220471831U - External air sensor and fresh air system

Info

Publication number: CN220471831U
Application number: CN202321912273.4U
Authority: CN
Inventors: 陈维佳; 黄进杰; 彭青卿
Original assignee: Brown Shanghai Environmental Engineering Co ltd
Current assignee: Brown Shanghai Environmental Engineering Co ltd
Priority date: 2023-07-20
Filing date: 2023-07-20
Publication date: 2024-02-09
Anticipated expiration: 2033-07-20

Abstract

The utility model discloses an external air sensor and a fresh air system, wherein the external air sensor comprises a box body, a sensing component, a sensing PCB and a main control PCB, wherein an opening is formed in one side of the box body, a mounting groove is formed in the box body, a top cover is arranged on the opening in a covering mode, the box body is correspondingly embedded in a bottom box, the bottom box is arranged in a wall body, the sensing PCB is arranged in the box body, the sensing component is arranged on one side, far away from the bottom of the mounting groove, of the PCB, the sensing component is used for monitoring indoor air quality, the main control PCB is arranged on one side, close to the bottom of the mounting groove, of the sensing PCB, and the main control PCB is connected with the sensing PCB.

Description

External air sensor and fresh air system

Technical Field

The utility model relates to the technical field of air detection, in particular to an external air sensor and a fresh air system.

Background

With the development of society, people pay more and more attention to ecological environment, especially to air environment, and with the more and more serious air pollution, people pay more and more attention to improvement of air quality of living environment, so ventilation products are gradually produced and applied.

In the prior art, a fresh air system is a system for purifying and ventilating indoor air, and aims to provide fresh outdoor air and discharge dirty indoor air. The air purifier can effectively remove pollutants, peculiar smell, dust and harmful gases in the air, and provides fresh and healthy air environment for the room. The intelligent fresh air system is also getting more attention along with the popularization of the fresh air system.

Most of the fresh air systems in the prior art realize the detection of environmental data by simply selecting the opening/closing of a fresh air fan and adjusting the wind speeds of different gears or by installing an air sensor in a control panel or a host, so as to adjust the running mode of a fan in the fresh air system. However, integrating the air sensor in the control panel or the body is not a scientific method, because most users choose to install the control panel at the vestibule of the indoor entrance, and most people are in living rooms and bedrooms, and the installation position of the control panel cannot accurately collect the air quality data of the people's active area. And the control panel mostly contains the display screen, and the accuracy of humiture data also can be influenced in the fever of display screen itself. In addition, install the sensor in fresh air host computer, the air condition in the response room that also can not be accurate because most host computers are installed in the furred ceiling that keeps away from living area, and the ambient temperature of host computer and living area's ambient temperature can have great fall. Fresh air is sent into each indoor region through the pipeline in the furred ceiling, and if only air data in the simple detection fuselage can neglect the temperature loss of air in the pipeline. Summarizing the above two air data collection modes, it is found that the air sensor in the fresh air system in the prior art cannot accurately feed back indoor air data to the fresh air machine due to poor positions, and further the actual running mode of the fresh air machine is not appropriate for actual environmental conditions, so as to influence the actual experience of the fresh air system, and therefore, it is highly desirable to design an external air sensor capable of being installed at a position where personnel activities such as a living room and a bedroom are frequent, so as to solve the above problems.

Disclosure of Invention

The present utility model is directed to an external air sensor, which can be installed in a key area such as a living room or a bedroom where people move frequently to detect air quality, and solves the problems set forth in the background art.

In order to achieve the above object, the present utility model provides an external air sensor, comprising:

the box body is provided with an opening at one side and a mounting groove at the inside, the opening is covered with a top cover, the box body is correspondingly embedded in a bottom box, and the bottom box is arranged in a wall body;

the sensing PCB is arranged in the box body, one side, far away from the bottom of the mounting groove, of the PCB is provided with a sensing component, and the sensing component is used for monitoring indoor air quality;

the main control PCB is arranged on one side, close to the bottom of the mounting groove, of the sensing PCB, and the main control PCB is connected with the sensing PCB.

In some embodiments, the sensing assembly further comprises a particulate matter detection sensor, a carbon dioxide detection sensor, and a volatile organic matter detection sensor;

and a plurality of plug interfaces are arranged on the sensing PCB, and the plug interfaces respectively correspond to the particulate matter detection sensor, the carbon dioxide detection sensor and the volatile organic matter detection sensor.

Through setting up the box body that can match with end box for external air sensor can install in the frequent position of personnel activities such as living room and bedroom, thereby can more accurately, detect out indoor air quality more fast, with the precision that effectively improves air detection.

In some embodiments, a temperature and humidity sensor is disposed on the main control PCB, and the temperature and humidity sensor faces the top cover.

Through setting up a plurality of sensors and integrating in the box body for can provide more comprehensive detection demand, the whole small installation and the placing of being convenient for of product simultaneously effectively extend the practicality and the application scope of product.

In some embodiments, the side edge of the box body corresponding to the opening is provided with an outwardly extending sealing edge, and the sealing edge is matched with the top cover.

The setting of banding effectively avoids the box body to imbed to be too dark in the end box, and then can realize quick location and laminating when being convenient for embedded installation, the steady combination of end box and box body of being convenient for simultaneously.

In some embodiments, the top cover comprises a cover frame, a plurality of limiting protrusions are arranged on the inner side of the cover frame, and the cover frame correspondingly covers the edge sealing, so that a preset space is reserved between the top cover and the opening.

The cover frame corresponds the setting of lid and closes the banding, effectively guarantees the leakproofness of box body, provides powerful support for the protection of spare part in the box body, and the top cap is in place with the opening reservation in addition, for external air flow and stay provide the space for each sensor can fully contact air, thereby effectively provides the accuracy of air detection.

In some embodiments, the cover frame is provided with a plurality of ventilation holes.

In some embodiments, a wiring row is arranged on one side of the main control PCB, which is far away from the sensing PCB;

the mounting groove is close to the groove wall of the wiring row and is provided with a wiring gap, and the wiring row faces and extends to the wiring gap.

In some embodiments, the mounting groove is provided with a positioning protrusion facing the mounting groove corresponding to a groove wall adjacent to the winding displacement gap, one side of the positioning protrusion, which is close to the opening, is connected with the edge sealing, and is provided with a screw hole, and the box body penetrates through the screw hole through a screw and is fixed on the bottom box.

The bellied setting of location is provided convenience for the installation location of sensing PCB board and master control PCB board, makes sensing PCB board and master control PCB board can stabilize the card simultaneously and locate in the mounting groove, runs through the screw in addition and makes box body and end box firmly connect, has further improved the practical reliability of product.

In some embodiments, a fixing protrusion is arranged on one side of the edge sealing, a first fixing hole is formed in the fixing protrusion, a second fixing hole corresponding to the first fixing hole is formed in the cover frame, and the first fixing hole and the second fixing hole penetrate and are fixed through the same screw;

one side of the cover frame, which is far away from the fixing protrusion, is connected with the edge sealing through a buckle structure, so that the top cover and the box body can be in cover connection.

The setting of fixed protruding makes things convenient for the location when the top cap is installed, simultaneously provides the condition for the detachable connection of box body and cover frame, provides convenience for subsequent maintenance and spare part's change.

According to another aspect of the present utility model, there is further provided a fresh air system, including a fan module, further including:

the external air sensor of any of the above embodiments, wherein the external air sensor is electrically connected with the fan module.

The fresh air system can monitor the air quality index of the area where the indoor personnel move more frequently more accurately, and then can adjust the supply quantity and quality of the indoor air according to the real-time data, so that the purpose of keeping the indoor air fresh and comfortable is achieved.

Compared with the prior art, the external air sensor provided by the utility model has the following beneficial effects:

1. according to the external air sensor provided by the utility model, the box body which can be matched with the bottom box is arranged, so that the external air sensor can be installed at a position where personnel such as a living room and a bedroom move frequently, and the indoor air quality can be detected more accurately and more rapidly, and the air detection precision is effectively improved.

2. According to the external air sensor provided by the utility model, the plurality of sensors are integrated in the box body, so that the overall universality of the product can be improved, the comprehensive detection requirement can be provided, meanwhile, the product is small in overall size and convenient to install and place, and the practicability and application range of the product are effectively expanded.

3. According to the external air sensor provided by the utility model, through the arrangement that the box body can be movably connected with the bottom box and the detachable cover of the box body and the top cover, convenience is provided for the maintenance and replacement of the sensor in the later period.

Drawings

The above features, technical features, advantages and implementation of the present utility model will be further described in the following description of preferred embodiments with reference to the accompanying drawings in a clear and easily understood manner.

FIG. 1 is a schematic diagram of the front view of an external air sensor according to a preferred embodiment of the present utility model;

fig. 2 is an exploded view of an external air sensor according to a preferred embodiment of the present utility model.

Reference numerals illustrate:

the box body 10, the location arch 11, banding 12, winding displacement breach 13, fixed arch 14, screw 15, top cap 20, cover frame 21, ventilation hole 22, second fixed orifices 23, spacing arch 24, sensing PCB board 30, sensing component 31, main control PCB board 40, temperature and humidity sensor 41, wiring row 42.

Detailed Description

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will explain the specific embodiments of the present utility model with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.

For simplicity of the drawing, only the parts relevant to the utility model are schematically shown in each drawing, and they do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

In this context, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, in the description of the present application, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

In an embodiment, referring to fig. 1 and 2 of the drawings, the external air sensor provided by the utility model comprises a box body 10, a sensing component 31, a sensing PCB 30 and a main control PCB 40, wherein an opening is formed in one side of the box body 10, a mounting groove is formed in the box body, a top cover 20 is arranged on the opening in a covering manner, the box body 10 is correspondingly embedded in a bottom box, the bottom box is arranged in a wall body, the sensing PCB 30 is arranged in the box body 10, the sensing component 31 is arranged on one side of the PCB, far away from the bottom of the mounting groove, and is used for monitoring indoor air quality, the main control PCB 40 is arranged on one side of the sensing PCB 30, close to the bottom of the mounting groove, and the main control PCB 40 is connected with the sensing PCB 30.

Specifically, the end box and box body 10 looks adaptation, wherein the model of end box can be 86 type terminal box, can install on the wall body in the frequent key region of personnel activities such as living room and bedroom, and then make the sensing subassembly 31 in the box body 10 can carry out the direct detection to the air quality in the frequent key region of personnel activities such as living room and bedroom, effectively reduced the high efficiency of air detection and improve the accuracy of detected data, main control PCB board 40 is installed in proper order from the tank bottom of mounting groove to the opening in the box body 10, sensing PCB board 30, sensing subassembly 31 and top cap 20, the setting that sensing subassembly 31 is closest to top cap 20, in order to ensure that the air can contact sensing subassembly 31 more soon, in order to improve the sensitivity of the air detection of product.

In one embodiment, referring to fig. 2 of the specification, the sensing assembly 31 further includes a particulate matter detecting sensor, a carbon dioxide detecting sensor, and a volatile organic matter detecting sensor, and the sensing PCB 30 is provided with a plurality of sockets, where the plurality of sockets respectively correspond to the particulate matter detecting sensor, the carbon dioxide detecting sensor, and the volatile organic matter detecting sensor.

Specifically, particulate matter detection sensor, carbon dioxide detection sensor and volatile organic compounds detection sensor neatly arrange in the side that is close to top cap 20 on sensing PCB board 30, all sensors pass through the grafting mouth and connect grafting on sensing PCB board 30 for every sensor can independently detachably set up, so that later maintenance and change, thereby effectively improve air sensor's life, it is pointed out that sensing assembly 31 can also include any one or more of anion sensor, carbon monoxide detection sensor, formaldehyde detection sensor and ozone detection sensor etc. thereby effectively further strengthen air detection's comprehensively, in addition all sensors are orderly neatly integrated on sensing PCB board 30, make the installation space in the mounting groove obtain make full use of, and then provide the guarantee for the whole small in size of product, the function is all provided.

In one embodiment, referring to fig. 2 of the specification, a temperature and humidity sensor 41 is disposed on the main control PCB 40, the temperature and humidity sensor 41 faces the top cover 20, and the temperature and humidity sensor 41 is used for detecting temperature and humidity in air.

In one embodiment, referring to fig. 2 of the drawings, the sides of the corresponding opening of the case 10 are provided with outwardly extending sealing edges 12, and the sealing edges 12 are adapted to the top cover 20.

Specifically, the extending direction of the sealing edge 12 and the direction of the opening can be perpendicular to be matched with the wall body at the installation position, meanwhile, the box body 10 is effectively prevented from being embedded into the bottom box too deeply, rapid positioning and fitting can be achieved during embedded installation, and meanwhile, the bottom box and the box body 10 are convenient to stably combine.

In one embodiment, referring to fig. 2 of the specification, on the basis of the above embodiment, the top cover 20 includes a cover frame 21, a plurality of limiting protrusions 24 are disposed on the inner side of the cover frame 21, and the cover frame 21 covers the sealing edge 12 correspondingly, so that a preset space is reserved between the top cover 20 and the opening.

Specifically, cover frame 21 corresponds the lid and closes banding 12 to the inboard of cover frame 21 all contacts with banding 12 fully, and both are pressed each other and are pressed the laminating, effectively guarantee the leakproofness of box body 10, the protection of spare part in the box body 10 provides powerful support, spacing arch 24 dispersedly sets up in four sides of cover frame 21 in addition, make top cap 20 and opening when in place can remain the space of predetermineeing, predetermine the space and flow and stop for external air, make each sensor can fully contact air, thereby effectively provide the accuracy of air detection.

In one embodiment, referring to fig. 1 and 2 of the specification, the cover frame 21 is provided with a plurality of ventilation holes 22.

Specifically, the ventilation holes 22 are preferably disposed on the side edges of the cover frame 21 corresponding to the sensor assembly 31, and meanwhile, the ventilation holes 22 may be strip-shaped holes, circular holes, or holes of other shapes, which is not limited herein, and the ventilation holes 22 effectively increase the air quantity passing through each sensor in the box body 10, so that each sensor can fully contact with air, and further, the detection precision of the air detector is effectively improved, and it should be noted that a plurality of flow holes corresponding to the box body 10 can also be opened for air to flow.

In one embodiment, referring to fig. 1 and 2 of the specification, a wiring row 42 is disposed on a side of the main control PCB 40 away from the sensor PCB 30, a wiring gap 13 is disposed on a wall of the mounting groove, which is close to the wiring row 42, and the wiring row 42 faces and extends to the wiring gap 13.

Specifically, the wire arrangement notch 13 corresponds to a wire opening in the bottom box, the wire arrangement 42 is connected with the air treatment control system through a communication wire, power is provided for operation and adjustment of each sensor, accurate data can be transmitted to the external air treatment control system in real time, and parameters of each sensor are adjusted according to actual requirements through the external air treatment control system.

In one embodiment, referring to fig. 2 of the specification, on the basis of the above embodiment, the installation groove is provided with a positioning protrusion 11 facing the installation groove corresponding to the groove wall adjacent to the winding displacement notch 13, one side of the positioning protrusion 11 close to the opening is connected with the edge seal 12, and a screw hole 15 is formed, and the box body 10 penetrates through the screw hole 15 through a screw and is fixed on the bottom box.

Specifically, the number of the positioning protrusions 11 can be two, and the positioning protrusions are symmetrically arranged on the adjacent groove walls of the winding displacement notch 13 respectively, so that the sensing PCB 30 and the main control PCB 40 can be mounted in the mounting groove at a preset angle, convenience is provided for mounting and positioning the sensing PCB 30 and the main control PCB 40, meanwhile, the sensing PCB 30 and the main control PCB 40 can be stably clamped in the mounting groove, and in addition, the box body 10 and the bottom box are firmly connected through the screw penetrating screw holes 15, so that the practical reliability of the product is further improved.

In one embodiment, referring to fig. 2 of the specification, a fixing protrusion 14 is provided on one side of the sealing edge 12, a first fixing hole is provided on the fixing protrusion 14, a second fixing hole 23 corresponding to the first fixing hole is provided on the cover frame 21, the first fixing hole and the second fixing hole 23 are penetrated and fixed by the same screw, and one side of the cover frame 21 away from the fixing protrusion 14 is connected with the sealing edge 12 through a fastening structure, so that the top cover 20 and the box body 10 can be connected in a covering manner.

Specifically, the setting of the fixing protrusion 14 facilitates the positioning of the top cover 20 during installation, and meanwhile, the first fixing hole and the second fixing hole 23 penetrate through the same screw to further strengthen the covering connection between the top cover 20 and the box body 10, and correspondingly, the other side of the cover frame 21 is movably connected with the top cover 20 through a fastening structure, so that conditions are provided for detachable connection of the box body 10 and the cover frame 21, and convenience is provided for subsequent maintenance and replacement of parts.

The utility model further provides a fresh air system which not only comprises a fan module, but also comprises the external air sensor in any embodiment, wherein the external air sensor is electrically connected with the fan module.

Specifically, the external air sensor in any of the embodiments is installed at a position where personnel activities such as living room and bedroom are frequent, so that air quality indexes such as temperature, humidity, harmful gas concentration (such as carbon dioxide and volatile organic compounds) and the like of an area where the personnel activities are frequent can be monitored more accurately. The data are transmitted to the fan module, and then the fresh air system analyzes the data to judge whether the indoor air meets the health and comfort standards, and then the fresh air system can adjust the supply quantity and quality of the indoor air according to the real-time data, so that the aim of keeping the indoor air fresh and comfortable is fulfilled.

It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims

1. An external air sensor, comprising:

2. The external air sensor of claim 1, wherein,

the sensing assembly further comprises a particulate matter detection sensor, a carbon dioxide detection sensor and a volatile organic matter detection sensor;

3. The external air sensor of claim 2, wherein,

and a temperature and humidity sensor is arranged on the main control PCB, and the temperature and humidity sensor faces the top cover.

4. An external air sensor according to any of claims 1-3, wherein,

the box body corresponds the open-ended side is provided with the banding of outside extension, the banding with top cap looks adaptation.

5. The external air sensor of claim 4, wherein,

the top cover comprises a cover frame, a plurality of limiting protrusions are arranged on the inner side of the cover frame, and the cover frame correspondingly covers the edge sealing, so that a preset space is reserved between the top cover and the opening.

6. The external air sensor of claim 5, wherein,

the cover frame is provided with a plurality of ventilation holes.

7. The external air sensor according to claim 5 or 6, wherein,

a wiring row is arranged on one side, far away from the sensing PCB, of the main control PCB;

8. The external air sensor of claim 7, wherein,

the mounting groove corresponds with the adjacent cell wall of winding displacement breach is provided with the orientation towards the mounting groove is protruding, the location protruding be close to one side of opening with the banding is connected, and has seted up the screw, the box body runs through the screw and is fixed in on the end box.

9. The external air sensor of claim 7, wherein,

one side of the edge sealing is provided with a fixing protrusion, a first fixing hole is formed in the fixing protrusion, a second fixing hole corresponding to the first fixing hole is formed in the cover frame, and the first fixing hole and the second fixing hole penetrate and are fixed through the same screw;

10. The utility model provides a new trend system, includes fan module, its characterized in that still includes:

the external air sensor of any of claims 1-9, wherein the external air sensor is electrically connected to the blower module.