Wall-mounted fan and fresh air system

Abstract

The utility model relates to the field of fresh air, and discloses a wall-mounted fan and a fresh air system, the structure is miniaturized, the original ground space of an old machine room is not occupied, the rotating speed of the fan can be adjusted through a control box, and energy consumption is reduced as much as possible while reliable operation of the machine room is guaranteed. The wall-mounted fan comprises a fresh air fan, the fresh air fan comprises a machine shell, a power distribution box, a dust removal module and a fan body, the power distribution box, the dust removal module and the fan body are located in the machine shell, and the machine shell comprises a first side plate and a second side plate which are oppositely arranged in the first direction; the first side plate comprises an air inlet, and the second side plate comprises an air outlet; the air inlet, the dust removal module, the fan and the air outlet are arranged in the first direction; the fan and the dust removal module are electrically connected with the distribution box; and the control box is electrically connected with the power distribution box and used for supplying power to the fresh air fan and adjusting the rotating speed of the fan.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fresh air technology field, especially a wall -hanging fan and fresh air system. BACKGROUND

[0002] With the requirement of old machine room reconstruction electricity zero growth of domestic mobile, communication, telecom and other head operators in some areas, each region carries out extensive exploration to energy saving and low PUE (Power Usage Effectiveness, power usage efficiency) scheme. Especially for the communication base station type machine room with small heat density, the introduction of natural cold wind in the transition season and winter can significantly reduce the power consumption. However, the old machine room usually does not have enough ground space to place special fresh air equipment. Therefore, the wall -hanging fresh air machine emerges as the times require in this background. UTILITARIAN CONTENT

[0003] The utility model discloses a wall -hanging fan and fresh air system, small -sized structure does not occupy the old machine room originally ground space still can realize the fan rotating speed adjustment through the control box, guarantees the reliable operation of machine room while the energy consumption of possibly reducing.

[0004] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0005] Firstly, the utility model provides a wall -hanging fan, comprising:

[0006] Fresh air fan, including the distribution box, dust removal module and fan in the shell, the shell includes the first side plate and second side plate relatively arranged along the first direction;The first side plate includes the air inlet, and the second side plate includes the air outlet;The air inlet, the dust removal module, the fan and the air outlet are arranged along the first direction;The fan and the dust removal module are electrically connected with the distribution box;

[0007] Control box, electrically connected with the distribution box, for the fresh air fan power supply, also be used for adjusting the rotating speed of the fan.

[0008] The wall -hanging fan adopts wall -hanging mode installation and does not occupy the precious ground space, and is especially suitable for the old machine room or other space limited environment. The wall -hanging fan includes fresh air fan and control box, wherein the fresh air fan introduces outdoor fresh air into the room, and the circulation direction is: outdoor fresh air is purified after passing through the dust removal module, and then is sent into the room after passing through the fan. The air inlet, the dust removal module, the fan and the air outlet are arranged in a straight line, which helps to reduce the size of the fresh air fan in the first direction, so that the wall -hanging fan is more miniaturized, and the occupied space is reduced. The control box is electrically connected with the distribution box of the fresh air fan, can power supply the fresh air fan and can control the rotating speed of the fan, realizes the purpose of energy saving and consumption reduction.

[0009] In some embodiments, the control box comprises:

[0010] a box body;

[0011] a first temperature and humidity sensor located outside the box body for collecting outdoor temperature and humidity information;

[0012] a second temperature and humidity sensor for collecting indoor temperature and humidity information;

[0013] a controller located inside the box body and electrically connected with the first temperature and humidity sensor, the second temperature and humidity sensor and the power distribution box, for controlling the rotation speed of the fan according to the outdoor temperature and humidity information and the indoor temperature and humidity information.

[0014] The controller in the control box can automatically adjust the rotation speed of the fan according to the outdoor temperature and humidity information fed back by the first temperature and humidity sensor and the indoor temperature and humidity information fed back by the second temperature and humidity sensor, realize intelligent control, adjust on demand, intelligently control the amount of introduced fresh air, and ensure reliable operation of the machine room while reducing energy consumption as much as possible.

[0015] In some embodiments, the dust removal module is an electrostatic dust removal module. The electrostatic dust removal module has a wide application prospect in the field of air purification due to its high efficiency, energy saving, easy maintenance and environmental protection. Especially in the background of energy saving and consumption reduction demand of old machine room reconstruction, the electrostatic dust removal module provides reliable technical support for improving indoor air quality.

[0016] In some embodiments, the fresh air fan comprises a forward-reverse fan.

[0017] In some embodiments, the number of fans is the same as the number of air outlets and is correspondingly arranged. The fan and the air outlet are one-to-one correspondingly arranged, ensuring that each air outlet has a corresponding fan, thereby realizing more uniform and efficient air flow.

[0018] In some embodiments, the fresh air fan comprises at least two fans. One fresh air fan has multiple fans, the increase in the number of fans reduces the diameter size of a single fan, and the load of a single fan is relatively small, reducing the wear of a single device and prolonging the service life of the device, while reducing maintenance costs.

[0019] In some embodiments, the first side plate is connected with a wall hanging ear, so that the wall hanging fan does not need to be additionally provided with a support when installed, and can be directly hung through the wall hanging ear.

[0020] In some embodiments, the first side plate comprises a first side edge, a second side edge, a third side edge and a fourth side edge; wherein the first side edge and the third side edge are oppositely arranged, and the second side edge and the fourth side edge are oppositely arranged and connected between the first side edge and the third side edge.

[0021] The first side edge is connected with a plurality of wall hanging ears arranged along the extension direction of the first side edge.

[0022] Alternatively, the second side edge and the fourth side edge are symmetrically connected with wall hanging ears.

[0023] The first side plate of the shell is located on the side of the fresh air fan facing the mounting surface, such as a wall surface. The wall hanging ears can be configured on one side or symmetrically. Users can select the most suitable wall hanging ear configuration method according to the actual installation environment to flexibly cope with different wall conditions and installation requirements.

[0024] In some embodiments, the fresh air fan further comprises:

[0025] A wind tube, the wind tube comprising an inlet side and an outlet side, the radial dimension of the inlet side being greater than the radial dimension of the outlet side; the inlet side being connected to the second side plate and covering the air outlet.

[0026] The wind tube can accelerate the airflow of the air outlet, thereby increasing the blowing distance of the fan and having a certain noise reduction effect.

[0027] In some embodiments, the fresh air fan is a plurality of fresh air fans, and the plurality of fresh air fans are electrically connected to the control box. One control box simultaneously connects a plurality of fresh air fans, which has the advantages of strong expansion, centralized control, high efficiency and energy saving, convenient installation, etc.

[0028] In a second aspect, the utility model also provides a kind of fresh air system, including the wall hanging fan as any one of the first aspect.

[0029] The above-mentioned fresh air system uses wall hanging fan, which does not occupy the original ground space of old machine room and can realize fan speed regulation through control box, ensuring reliable operation of fresh air system while reducing energy consumption as much as possible. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 A structural schematic diagram of the wall hanging fan provided for the embodiments of the utility model is shown in the figure.

[0031] Figure 2 A three-dimensional view of the fresh air fan in the wall hanging fan provided for the embodiments of the utility model is shown in the figure.

[0032] Figure 3 A three-dimensional view of the control box in the wall hanging fan provided for the embodiments of the utility model is shown in the figure.

[0033] Figure 4 A structural schematic diagram of another wall hanging fan provided for the embodiments of the utility model is shown in the figure.

[0034] Figure 5 A three-dimensional view of a fresh air fan in another wall-mounted fan according to an embodiment of the present application is provided;

[0035] Figure 6 A three-dimensional view of a fresh air fan in another wall-mounted fan according to an embodiment of the present application is provided;

[0036] Figure 7 A structural schematic view of another wall-mounted fan according to an embodiment of the present application is provided;

[0037] Figure 8 A three-dimensional view of a fresh air fan in another wall-mounted fan according to an embodiment of the present application is provided;

[0038] Figure 9 A control principle diagram of a wall-mounted fan according to an embodiment of the present application is provided;

[0039] Figure 10 A structural schematic view of another wall-mounted fan according to an embodiment of the present application is provided;

[0040] Icon: 1-fresh air fan; 2-control box; 11-casing; 12-distribution box; 13-dust removal module; 14-fan; 15-wall hanging ear; 16-air duct; 111-first side plate; 112-second side plate; 1111-first side edge; 1114-fourth side edge; 21-box body; 22-first temperature and humidity sensor; 23-second temperature and humidity sensor; 24-controller; 25-display panel. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. In the description of the embodiments of the present application, unless otherwise specified, " / " represents the meaning of or, for example, A / B can represent A or B; the "and / or" in the text only represents the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0042] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0043] Firstly, such as Figures 1 to 3 As shown, this utility model embodiment provides a wall-mounted fan, including:

[0044] The fresh air fan 1 includes a housing 11 and a power distribution box 12, a dust removal module 13, and a fan 14 located inside the housing 11. The housing 11 includes a first side plate 111 and a second side plate 112 arranged opposite to each other along a first direction. The first side plate 111 includes an air inlet, and the second side plate 112 includes an air outlet. The air inlet, the dust removal module 13, the fan 14, and the air outlet are arranged along the first direction. The fan 14 and the dust removal module 13 are both electrically connected to the power distribution box 12.

[0045] The control box 2 is electrically connected to the distribution box 12 and is used to supply power to the fresh air fan 1 and to adjust the speed of the fan 14.

[0046] The aforementioned wall-mounted fan, installed on a wall, does not occupy valuable floor space, making it particularly suitable for older server rooms or other environments with limited space. The wall-mounted fan consists of a fresh air fan 1 and a control box 2. The fresh air fan 1 introduces fresh outdoor air into the room, with the airflow direction as follows: the fresh outdoor air is purified by the dust removal module 13 and then delivered into the room by the fan 14. The air inlet, dust removal module 13, fan 14, and air outlet are arranged in a straight line, which helps to reduce the size of the fresh air fan 1 in the first direction, thus making the wall-mounted fan more compact and reducing its space occupation. The control box 2 is electrically connected to the power distribution box 12 of the fresh air fan 1, providing power to the fresh air fan 1 and controlling the speed of the fan 14, achieving energy saving and consumption reduction.

[0047] One possible way to achieve this is, such as Figure 2 As shown, the casing 11 of the fresh air fan 1 is cubic in shape. It can be understood that this is to illustrate the internal structure of the casing 11. Figure 2 The side panel of the housing 11 is omitted. The housing 11 includes a first side panel 111 and a second side panel 112. The first side panel 111 usually faces the mounting surface, such as a wall, and is defined as the rear side panel of the housing 11. The second side panel 112 usually faces away from the mounting surface, such as a wall, and is defined as the front side panel of the housing 11. The dimension of the housing 11 from the front side panel to the rear side panel is defined as the thickness dimension. The air inlet is located on the first side panel 111. Due to the viewing angle, Figure 2The dust removal module 13 is located inside the casing 11 and is used to purify the outdoor fresh air entering from the air inlet to ensure that the air entering the indoor is clean. The fan 14 is located on the side of the dust removal module away from the air inlet and is used to drive the purified air to the air outlet. The air outlet is located on the second side plate 112. Along the thickness direction of the fresh air fan 1, the air inlet, the dust removal module 13, the fan 14 and the air outlet are arranged in a straight line in sequence, realizing the short distance design of the air duct, thereby reducing the thickness size of the entire fresh air fan 1, so that the fresh air fan 1 meets the miniaturization requirement.

[0048] In the fresh air fan 1, the casing 11 provides physical protection for the internal devices of the fresh air fan 1. The power distribution box 12 provides power distribution and protection for the fan 14 and other electrical equipment. The dust removal module 13 preliminarily purifies the entering air to remove dust, particulate matter and other pollutants, thereby improving the air quality.

[0049] The wall-mounted fan provided by the embodiment is installed in a wall-mounted manner and does not occupy ground space. Outdoor air is sucked into the fresh air fan 1 through the pipeline from the air inlet. The air first passes through the dust removal module 13 to remove dust and particulate matter therein, thereby ensuring that the air entering the indoor is clean. The purified air is driven by the fan 14 and is sent into the indoor through the air outlet. The control box 2 adjusts the rotating speed of the fan 14 and the working state of the dust removal module 13 to ensure the best air quality and energy efficiency ratio.

[0050] In some embodiments, the control box 2 includes:

[0051] a box body 21;

[0052] a first temperature and humidity sensor 22 located outside the box body 21 and used to collect outdoor temperature and humidity information;

[0053] a second temperature and humidity sensor 23 used to collect indoor temperature and humidity information;

[0054] a controller 24 located inside the box body 21 and electrically connected with the first temperature and humidity sensor 22, the second temperature and humidity sensor 23 and the power distribution box 12, and used to control the rotating speed of the fan 14 according to the outdoor temperature and humidity information and the indoor temperature and humidity information.

[0055] The controller 24 in the control box 2 can automatically adjust the rotating speed of the fan 14 according to the outdoor temperature and humidity information fed back by the first temperature and humidity sensor 22 and the indoor temperature and humidity information fed back by the second temperature and humidity sensor 23, thereby realizing intelligent control, adjusting on demand, intelligently controlling the amount of introduced fresh air, ensuring reliable operation of the machine room while reducing energy consumption as much as possible.

[0056] In one possible implementation, the control box 2 is wall-mounted and includes air switches, a controller 24, a display panel 25, sensors, and other power distribution control devices. The air switches are used to protect the circuit from overload or short circuit. The controller 24 is responsible for the control logic of the overall system, including the speed adjustment of the fan 14, the start of the dust removal module 13, and the like. The display panel 25 displays the current system status, temperature, humidity, and other information, facilitating user monitoring and operation. The display panel 25 can be a touch panel or a display panel 25 with keys. The sensors are used to monitor indoor and outdoor air quality, temperature, humidity, and other parameters, providing data support for the control system.

[0057] The sensors include a first temperature and humidity sensor 22 and a second temperature and humidity sensor 23. The first temperature and humidity sensor 22 is located outside the box body 21 and is signal-connected with the controller 24, for collecting outdoor temperature and humidity information and sending the outdoor temperature and humidity information to the controller 24. The second temperature and humidity sensor 23 is located outside the box body 21 and is signal-connected with the controller 24, for collecting indoor temperature and humidity information and sending the indoor temperature and humidity information to the controller 24. Of course, the second temperature and humidity sensor 23 can also be located inside the box body 21 or fixed on the box body 21.

[0058] The control box 2 supplies power to the fan 14 and the dust removal module 13 of the indoor fresh air fan 1, and adjusts the speed of the fan 14 of the indoor fresh air module through a signal line, ensuring that the amount of introduced fresh air meets the demand. The control box 2 can also automatically adjust the operating mode according to the data feedback from the sensors to optimize energy efficiency and air quality.

[0059] The small wall-mounted fan provided in this embodiment not only meets the space limitations and energy saving requirements of old machine rooms, but also improves indoor air quality through efficient air purification and intelligent control systems, contributing to green and low-carbon development.

[0060] In some embodiments, the dust removal module 13 is an electrostatic dust removal module. Electrostatic dust removal modules have a wide range of applications in the field of air purification due to their high efficiency, energy saving, easy maintenance, and environmental protection. In particular, in the context of the demand for energy saving and consumption reduction in old machine room renovation, electrostatic dust removal modules provide reliable technical support for improving indoor air quality.

[0061] The electrostatic dust removal module has the characteristics of high-efficiency dust removal, specifically: the electrostatic dust removal module can effectively remove fine particulate matter (such as PM2.5) in the air, which is usually difficult to completely capture by traditional filter screens. Electrostatic dust removal uses a high-voltage electric field to charge the particulate matter, which is then adsorbed by a collection plate, thereby achieving high-efficiency purification. Compared with other types of dust removal equipment, the electrostatic dust removal module has higher purification efficiency, can handle large air flow, and maintains high cleanliness.

[0062] The electrostatic dust removal module has the characteristics of low energy consumption, specifically, the electrostatic dust removal module consumes less power during operation, compared with the traditional mechanical filter, it does not need to replace the filter element frequently or perform complex cleaning operations, so it is more energy-saving and environmentally friendly in the long run; since the electrostatic dust removal module has already purified the air, reducing the amount of dust that needs to be processed by the subsequent fan 14, thereby reducing the working load of the fan 14, further saving energy.

[0063] The electrostatic dust removal module has the characteristics of simple maintenance, specifically, the electrostatic dust removal module has no vulnerable parts inside, has a long service life, reduces the replacement frequency and maintenance cost; only needs to clean the dust accumulated on the collection plate regularly, which can restore its working efficiency, the cleaning process is simple and fast, and will not affect the normal operation of the system. In one embodiment, the fan can be reversed to periodically reverse dust removal for the electrostatic dust removal module.

[0064] The electrostatic dust removal module has the characteristics of no secondary pollution, specifically, unlike some chemical filtration methods, the electrostatic dust removal module does not use any chemicals and does not produce harmful byproducts, ensuring the purity of the air; the pollutants are separated from the air by physical means, without introducing new pollutants, ensuring the safety of indoor air quality.

[0065] In some embodiments, the number of fans 14 is the same as the number of air outlets and is correspondingly arranged. The fan 14 is arranged one-to-one with the air outlet, ensuring that each air outlet has a corresponding fan 14, thereby achieving more uniform and efficient air flow.

[0066] It should be noted that each air outlet is equipped with an independent fan 14, which can individually adjust the speed of each fan 14 according to actual needs, ensuring that the air flow of each area is consistent and achieving precise control. Since each air outlet has a corresponding fan 14, it can effectively avoid poor ventilation in some areas or the formation of air flow dead angles, ensuring that the air in the entire space can flow uniformly. According to actual needs, only the necessary fans 14 are started, reducing unnecessary energy consumption and achieving on-demand air supply. For example, when more fresh air is needed in a specific area, the speed of the fan 14 in that area can be increased without the need to increase the power of all fans 14.

[0067] In some embodiments, the fresh air fan 1 includes at least two fans 14. One fresh air fan 1 has multiple fans 14, the increase in the number of fans 14 reduces the diameter size of a single fan 14, and the load of a single fan 14 is relatively small, reducing the wear and tear of a single device and prolonging the service life of the device, while reducing maintenance costs.

[0068] As Figure 4 and Figure 5As shown, the fresh air fan 1 includes two fans 14, which are arranged in a second direction perpendicular to the first direction. The first direction is the thickness direction of the fresh air fan 1, and the second direction is the length direction of the fresh air fan 1.

[0069] In some embodiments, as shown in Figure 5 and Figure 6 As shown, the first side plate 111 is connected with the wall hanging lug 15, so that the wall-mounted fan does not need to be additionally provided with a support when installed, and can be directly hung by the wall hanging lug 15.

[0070] In some embodiments, the first side plate 111 includes a first side edge 1111, a second side edge, a third side edge, and a fourth side edge 1114; wherein the first side edge 1111 and the third side edge are oppositely arranged, and the second side edge and the fourth side edge 1114 are oppositely arranged and connected between the first side edge 1111 and the third side edge.

[0071] The first side edge 1111 is connected with a plurality of wall hanging lugs 15, which are arranged in a second direction perpendicular to the first direction.

[0072] Alternatively, the second side edge and the fourth side edge 1114 are symmetrically connected with the wall hanging lug 15.

[0073] In one possible implementation, as shown in Figure 5 The first side edge 1111 is connected with two wall hanging lugs 15, which are fixed on the first side plate 111 and arranged in a second direction to ensure that the wall-mounted fan is balanced after being hung.

[0074] In one possible implementation, as shown in Figure 6 The second side edge and the fourth side plate are both connected with the wall hanging lug 15, and the two wall hanging lugs 15 are symmetrically fixed on the first side plate 111 to ensure that the wall-mounted fan is balanced after being hung.

[0075] The first side plate 111 of the shell 11 is located on the side of the fresh air fan 1 facing the installation surface such as a wall surface, and the wall hanging lug 15 can be configured on one side or symmetrically. Users can choose the most suitable configuration of the wall hanging lug 15 according to the actual installation environment, and flexibly cope with different wall conditions and installation requirements.

[0076] Among them, the scheme of one-side configuration is that the first side edge 1111 is connected with a plurality of wall hanging lugs 15, which are arranged in a second direction perpendicular to the first direction. This way is suitable for the case where the fresh air fan 1 needs to be mainly hung on one side, simplifying the installation process and ensuring stability.

[0077] The symmetrically configured solution is that the second side edge and the fourth side edge 1114 of the first side plate 111 are symmetrically connected with the wall hanging lug 15. Such a symmetric design can provide more uniform suspension force distribution, which is suitable for scenarios that require fixing on both sides to enhance stability and load-bearing capacity.

[0078] In some embodiments, as shown in Figure 7 and Figure 8 The fresh air fan 1 further comprises:

[0079] The air duct 16 comprises an inlet side and an outlet side, the radial dimension of the inlet side is greater than that of the outlet side; the inlet side is connected to the second side plate 112 and covers the air outlet. The air duct 16 is used to enhance the airflow speed and ensure that fresh air can be quickly and uniformly distributed to the entire room.

[0080] The air duct 16 can accelerate the airflow of the air outlet, thereby increasing the blowing distance of the fan 14, while having a certain noise reduction effect.

[0081] In some embodiments, the wall-mounted fan comprises an enabled mode and a prohibited mode;

[0082] When the outdoor humidity and the outdoor dry-bulb temperature collected by the first temperature and humidity sensor satisfy:

[0083] In the case that the outdoor humidity is less than or equal to the set humidity value, the outdoor dry-bulb temperature is less than or equal to the set temperature value, and the wall-mounted fan has no related alarm, the wall-mounted fan enters the enabled mode;

[0084] When the outdoor humidity and the outdoor dry-bulb temperature collected by the first temperature and humidity sensor satisfy:

[0085] In the case that the outdoor humidity is greater than the set humidity value and lasts for a certain time, or the outdoor dry-bulb temperature is greater than or equal to the set temperature value, or the wall-mounted fan has no related alarm, the wall-mounted fan enters the prohibited mode.

[0086] The wall-mounted fan provided by the embodiment has an enabled mode and a prohibited mode, and the specific working principle is as shown in Figure 9 The conditions for the wall-mounted fan to enter the enabled mode are that the outdoor humidity is less than or equal to the set humidity value, the outdoor dry-bulb temperature is less than or equal to the set temperature value, and there is no related alarm. The conditions for the wall-mounted fan to enter the prohibited mode are that the outdoor humidity is greater than the set humidity value and lasts for a certain time, or the outdoor dry-bulb temperature is greater than or equal to the set temperature value, or there is no related alarm.

[0087] When the fan 14 enters the enabled mode, the fan 14 speed is adjusted according to the indoor demand. When there is no demand in the room, the fan 14 operates at the minimum speed. When there is demand in the room, the fan 14 automatically adjusts the speed according to the demand.

[0088] Further, the set temperature value and the set humidity value are usually pre-configured according to specific application scenarios and user needs. For example, in a data center, lower temperature and humidity thresholds can be set to ensure the safe operation of equipment. The duration can be understood as: for the case where the outdoor humidity exceeds the set value, the system checks whether this state has lasted for a period of time (for example, 5 minutes or more) to avoid frequent mode switching due to temporary fluctuations. Related alarms can include but are not limited to power failures, sensor failures, or other abnormal situations affecting the normal operation of the system. Once an alarm is detected, the fan 14 will immediately enter the prohibited mode to protect the safety of equipment and personnel. The minimum speed can be understood as: even in the absence of indoor demand, the fan 14 will still maintain a certain minimum speed to prevent potential problems caused by complete stop, such as condensate accumulation or poor air flow.

[0089] For ease of understanding, an example is given: assuming the set humidity value is 60% and the set temperature value is 25℃: if the outdoor humidity is 58% and the dry-bulb temperature is 24℃, and there are no alarms, the fan 14 enters the enabled mode and adjusts the speed according to the indoor demand. If the outdoor humidity continues to be higher than 60% for more than 5 minutes, or the dry-bulb temperature rises to 26℃, or the system detects a sensor failure, the fan 14 enters the prohibited mode and stops running. This logic design ensures that the fan 14 can operate efficiently and safely in various environments while maximizing the needs of the indoor environment.

[0090] In some embodiments, the fresh air fan includes a reversible fan. A reversible fan is a fan device that can change its rotation direction as needed. Its main feature is that the rotation direction of the fan can be switched by a control circuit, thereby achieving different ventilation effects.

[0091] To reduce the maintenance frequency of the electrostatic dust removal module, the wall-mounted fan introduces a regular reverse operation mechanism:

[0092] When the wall-mounted fan is in the enabled mode, the system will automatically start a short reverse operation program at a preset time interval (such as every 48 hours). During the reverse operation, the fan will rotate in the opposite direction at a lower speed for about 5 minutes, using the reverse airflow impact to remove dust accumulated on the surface of the electrostatic dust removal module, thereby effectively reducing the electrostatic adsorption effect and reducing the maintenance needs.

[0093] This design not only improves the self-cleaning ability of the wall-mounted fan, but also prolongs the service life of the electrostatic dust removal module and reduces the need for manual cleaning.

[0094] The wall-mounted fan provided by the embodiment does not occupy the original space of the old machine room and can realize stepless adjustment of the fan through indoor and outdoor temperature sensors, intelligently control the amount of introduced fresh air, ensure reliable operation of the machine room, and reduce energy consumption as much as possible.

[0095] In some embodiments, as shown in Figure 10 The fresh air fan 1 is multiple, and the multiple fresh air fans 1 are electrically connected with the control box 2. One control box 2 is connected with multiple fresh air fans 1 at the same time, has the advantages of strong expansibility, centralized control, high efficiency and energy saving, convenient installation and the like.

[0096] In the second aspect, the embodiment of the utility model further provides a fresh air system, including any kind of wall-mounted fan in the first aspect embodiment.

[0097] The above-mentioned fresh air system adopts the wall-mounted fan, does not occupy the original ground space of the old machine room, and can realize speed adjustment of the fan 14 through the control box 2, ensures reliable operation of the fresh air system, and reduces energy consumption as much as possible.

[0098] Obviously, those skilled in the art can make various modifications and variations to the embodiments of the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model belong to the scope of the claims of the utility model and equivalent technologies, the utility model also intends to include these modifications and variations.

Claims

1. A wall-mounted fan, characterized by, The application relates to a new air fan, a control box and a wall-mounted fan. The new air fan comprises a shell, a power distribution box, a dust removal module and a fan in the shell, the shell comprises a first side plate and a second side plate oppositely arranged along a first direction, the first side plate comprises an air inlet, the second side plate comprises an air outlet, the air inlet, the dust removal module, the fan and the air outlet are arranged along the first direction, and the fan and the dust removal module are electrically connected with the power distribution box. The control box is electrically connected with the power distribution box, is used for supplying power for the new air fan, and is also used for adjusting the rotating speed of the fan.

2. The wall-mounted fan of claim 1, wherein, The control box comprises a box body, a first temperature and humidity sensor arranged outside the box body and used for collecting outdoor temperature and humidity information, a second temperature and humidity sensor used for collecting indoor temperature and humidity information, and a controller arranged inside the box body and electrically connected with the first temperature and humidity sensor, the second temperature and humidity sensor and the power distribution box, and used for controlling the rotating speed of the fan according to the outdoor temperature and humidity information and the indoor temperature and humidity information. The dust removal module is an electrostatic dust removal module. The number of the fans is the same as that of the air outlets and the fans are arranged at corresponding positions. The new air fan comprises forward and reverse rotation fans. The first side plate is connected with wall hanging ears.

3. The wall-mounted fan of claim 1, wherein, The first side plate comprises a first side edge, a second side edge, a third side edge and a fourth side edge, the first side edge and the third side edge are oppositely arranged, the second side edge and the fourth side edge are oppositely arranged and connected between the first side edge and the third side edge.

4. The wall-mounted fan of claim 1, wherein, The first side edge is connected with a plurality of wall hanging ears which are arranged at intervals along the extension direction of the first side edge.

5. The wall-mounted fan of claim 1, wherein, Alternatively, the second side edge and the fourth side edge are symmetrically connected with wall hanging ears.

6. The wall-mounted fan of claim 1, wherein, The new air fan further comprises a wind tube, the wind tube comprises an inlet side and an outlet side, the radial dimension of the inlet side is larger than that of the outlet side, the inlet side is connected with the second side plate and covers the air outlet.

7. The wall-mounted fan of claim 6, wherein, A plurality of the new air fans are electrically connected with the control box. The application further relates to a wall-mounted fan comprising the new air fan. ​ 8. The wall-mounted fan of any one of claims 1-7, wherein, ​ ​ 9. The wall-mounted fan of any one of claims 1-7, wherein, ​ 10. A fresh air system characterized in that, ​

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