Fresh air machine

Abstract

The utility model discloses a fresh air machine which comprises a machine shell, a fan cover and a fan cover. The controller is electrically connected with the fresh air fan and the exhaust fan; the filter screens are mounted at the return air inlet and the fresh air inlet of the machine shell; an opening and a limiting pin are arranged on the bottom face of the machine shell, a cover plate covers the opening, a limiting hole is formed in the cover plate, and the limiting hole and the limiting pin are connected in a matched and inserted mode so that the machine shell can be detachably connected with the cover plate in a limiting mode. The filter is novel in structure, convenient to disassemble and assemble the cover plate, convenient to overhaul devices in the shell and replace the filter screen, replaces a screw fixing mode, and is labor-saving and convenient to operate.

Description

Technical Field

[0001] This utility model belongs to the field of fresh air machine technology, and in particular relates to a fresh air machine. Background Technology

[0002] A fresh air system is an air purification device that circulates indoor air. On the one hand, it expels polluted indoor air to the outside, and on the other hand, it introduces fresh outdoor air into the room after sterilization, disinfection, and filtration, thus providing fresh air for the indoor environment.

[0003] Existing fresh air systems have their casings sealed with covers that are secured with screws. Disassembly and assembly require tools, making it inconvenient to inspect internal components or replace filters.

[0004] Existing patent document (publication number: CN213810937U) discloses "a humidifying fresh air machine", whose technical solution is a top cover plate fixed with screws by a riveting process on the top of the shell, which also has the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this utility model is to solve the above-mentioned technical problems existing in the prior art and provide a new air blower with a novel structure, convenient disassembly and assembly of the cover plate, which facilitates the maintenance of internal components and replacement of the filter screen, replacing the screw fixing method, and making operation labor-saving and convenient.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A fresh air ventilator includes: a housing, within which a fresh air fan and an exhaust fan are housed; a controller electrically connected to the fresh air fan and the exhaust fan; and a filter installed at the return air inlet and fresh air inlet of the housing. The housing is characterized by an opening and a limiting pin on its bottom surface, with a cover plate covering the opening. The cover plate has limiting holes that engage with the limiting pin, allowing the housing to be detachably connected to the limiting cover plate. This fresh air ventilator features a novel structure, and the cover plate is easy to install and remove, facilitating the inspection of internal components and filter replacement, replacing screw fixings, and simplifying operation.

[0008] Furthermore, the limiting hole includes a first hole and a second hole, which are connected. The cross-sectional diameter of the first hole is smaller than that of the second hole. The limiting pin includes a mounting part and a limiting part, with the limiting part located on the mounting part. The cross-sectional diameter of the mounting part is smaller than that of the limiting part. The mounting part corresponds to the first hole, and the limiting part corresponds to the second hole. During installation, the limiting part is passed through the second hole, and then the cover plate is moved laterally so that the mounting part enters the first hole. The limiting part cannot pass through the first hole, and the cover plate will not fall off freely, thus limiting the cover plate to the bottom surface of the casing. Disassembly is also simple, facilitating the inspection and maintenance of internal components and the replacement of filters. It replaces the screw fixing method, making operation labor-saving and convenient.

[0009] Furthermore, the casing is equipped with a smoke sensor and a buzzer alarm, with the controller electrically connected to the buzzer alarm. The smoke sensor can detect the smoke concentration in the environment in real time and send the detected data to the controller. The controller compares this data with a preset smoke concentration threshold. When the threshold is exceeded, the controller controls the buzzer alarm to sound an alarm, attracting attention and enriching the functionality.

[0010] Furthermore, the controller communicates with a mobile terminal via a GSM module, enabling it to send alarm information to the mobile terminal and achieve remote monitoring.

[0011] Furthermore, the casing features symmetrically distributed vertical slots corresponding to the filter screen. Inserting the filter screen into these slots secures it in place, simplifying operation and facilitating disassembly. This replaces screw fastening, saving effort and providing a more convenient solution.

[0012] Furthermore, the housing is connected to a protective cover by screws, and the controller is installed inside the protective cover, creating an independent working environment for the controller, protecting it from other factors and making it less prone to failure. The protective cover is securely fixed, easy to disassemble, and convenient for individual maintenance of the controller.

[0013] Furthermore, the housing is equipped with an L-shaped mounting block with mounting through holes. Bolts are inserted into the mounting through holes to hoist the entire unit, making installation convenient.

[0014] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0015] 1. During installation, pass the limiting part of the limiting pin through the second hole of the cover plate, and then move the cover plate laterally so that the mounting part of the limiting pin enters the first hole of the cover plate. The limiting part cannot pass through the first hole, and the cover plate will not fall off freely, thus limiting the cover plate to the bottom surface of the housing. Disassembly is also simple, which facilitates the inspection of internal components and replacement of filters. It replaces the screw fixing method and is labor-saving and convenient to operate.

[0016] 2. The smoke sensor can detect the smoke concentration in the environment in real time and send the detected data to the controller. The controller compares the data with a preset smoke concentration threshold. When the threshold is exceeded, the controller controls the buzzer alarm to sound an alarm, attracting people's attention and enriching the functionality. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the structure of a fresh air unit according to the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the casing in this utility model;

[0020] Figure 3 This is a schematic diagram of the cover plate in this utility model;

[0021] Figure 4 This is a schematic diagram of the connection between the controller and the smoke sensor in this utility model.

[0022] In the diagram: 1-House; 2-Filter; 3-Controller; 4-Fresh air fan; 5-Exhaust fan; 6-Vertical slot; 7-Opening; 8-Limit pin; 9-Cover plate; 10-Limit hole; 11-First hole; 12-Second hole; 13-Mounting part; 14-Limiting part; 15-L-shaped mounting block; 16-Mounting through hole; 17-Protective cover; 18-Smoke sensor; 19-Buzzer alarm; 20-GSM module. Detailed Implementation

[0023] like Figures 1 to 4 As shown, this utility model discloses a fresh air blower, comprising: a housing 1, a filter 2, and a controller 3. The housing 1 is equipped with a fresh air fan 4 and an exhaust fan 5. The controller 3 is electrically connected to the fresh air fan 4 and the exhaust fan 5. The filter 2 is installed at the return air inlet and the fresh air inlet of the housing 1. Vertical slots 6 corresponding to the filter 2 are symmetrically distributed inside the housing 1. The filter 2 is inserted into the vertical slots 6 to achieve limiting and fixing. The operation is simple and the disassembly is convenient. It replaces the screw fixing method, saving effort and convenience.

[0024] An opening 7 and a limiting pin 8 are provided on the bottom surface of the housing 1. A cover plate 9, which is U-shaped, covers the opening 7. The opening 7 serves as an inspection port, and the cover plate 9 seals it to prevent foreign objects from entering the housing 1, thus protecting the internal components. The cover plate 9 is provided with a limiting hole 10, which includes a first hole 11 and a second hole 12. The first hole 11 and the second hole 12 are connected. The cross-sectional diameter of the first hole 11 is smaller than that of the second hole 12. The limiting pin 8 includes a mounting part 13 and a limiting part 14. The limiting part 14 is located on the mounting part 13, and the cross-sectional diameter of the mounting part 13 is smaller than that of the limiting part 14. The mounting part 13 corresponds to the first hole 11, and the limiting part 14 corresponds to the second hole 12.

[0025] During installation, the limiting part 14 passes through the second hole 12, and then the cover plate 9 is moved laterally so that the mounting part 13 enters the first hole 11. The limiting part 14 cannot pass through the first hole 11, and the cover plate 9 will not fall off freely, thus limiting the cover plate 9 to the bottom surface of the housing 1. Disassembly is also simple, which facilitates the inspection and maintenance of the internal components of the housing 1 and the replacement of the filter screen 2. It replaces the screw fixing method, making operation labor-saving and convenient.

[0026] L-shaped mounting blocks 15 are symmetrically distributed on the housing 1. The L-shaped mounting blocks 15 are provided with mounting through holes 16. Bolts are inserted into the mounting through holes 16 to hoist the whole unit, making installation convenient.

[0027] The housing 1 is connected to a protective cover 17 by screws. The controller 3 is installed inside the protective cover 17, creating an independent working environment for the controller 3, which is not easily affected by other factors and is less likely to malfunction. The protective cover 17 is securely fixed, easy to disassemble, and convenient for individual maintenance of the controller 3.

[0028] A smoke sensor 18 and a buzzer alarm 19 are provided on the side of the housing 1. The smoke sensor 18 is electrically connected to the controller 3, and the controller 3 is electrically connected to the buzzer alarm 19. The smoke sensor 18 can detect the smoke concentration in the environment in real time and send the detected data to the controller 3. The controller 3 compares the data with a preset smoke concentration threshold. When the threshold is exceeded, the controller 3 controls the buzzer alarm 19 to sound an alarm to attract attention and enrich the functionality.

[0029] The controller 3 communicates with the mobile terminal via the GSM module 20, and can send alarm information to the mobile terminal to achieve remote monitoring.

[0030] The smoke sensor 18 can be a TX6190, the buzzer alarm 19 can be a passive buzzer, the controller 3 can be a PLC controller 3, and the GSM module 20 can be a TC35_GTM900 module, which are existing technologies and will not be described in detail here.

[0031] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A fresh air ventilator, comprising: The housing contains a fresh air fan and an exhaust fan. The controller is electrically connected to the fresh air fan and the exhaust fan; A filter screen is installed at the return air inlet and the fresh air inlet of the housing; Its features are: The bottom surface of the housing is provided with an opening and a limiting pin. The opening is covered with a cover plate, and the cover plate is provided with a limiting hole. The limiting hole and the limiting pin are engaged to allow the housing to be detachably connected to the cover plate.

2. The fresh air machine of claim 1, wherein: The limiting hole includes a first hole and a second hole, the first hole and the second hole are connected, the cross-sectional diameter of the first hole is smaller than the cross-sectional diameter of the second hole, the limiting pin includes a mounting part and a limiting part, the limiting part is disposed on the mounting part, the cross-sectional diameter of the mounting part is smaller than the cross-sectional diameter of the limiting part, the mounting part corresponds to the first hole, and the limiting part corresponds to the second hole.

3. The fresh air machine of claim 1, wherein: The casing is equipped with a smoke sensor and a buzzer alarm. The smoke sensor is electrically connected to the controller, and the controller is electrically connected to the buzzer alarm.

4. The fresh air machine of claim 1, wherein: The controller communicates with the mobile terminal via a GSM module.

5. The fresh air machine of claim 1, wherein: The housing has symmetrically distributed vertical slots corresponding to the filter screen.

6. The fresh air machine of claim 1, wherein: The housing is connected to a protective cover by screws, and the controller is installed inside the protective cover.

7. The fresh air machine of claim 1, wherein: The housing is provided with an L-shaped mounting block, and the L-shaped mounting block is provided with a mounting through hole.

Images