CN208170625U - The cabinet type new blower of civilian dress type - Google Patents

Abstract

The utility model provides a conveniently installed cabinet-type fresh air fan. A filter element is arranged under the fresh air outlet; a first partition and a second partition are arranged under the filter element installation compartment; There is an air exhaust port behind the warehouse; the fan installation plate is fixedly connected to the bottom of the second partition, and the fan installation board divides the lower part of the cabinet into the fan chamber and the mixed air chamber, and the upper part of the second partition is provided with a second air vent. There is a vent 1 on the position opposite to the vent 2 on the first partition; there is an air outlet switching valve next to the vent 1, and the air outlet switching valve has two positions: the air outlet position and the storage position; the bottom casing of the mixed air chamber There is an indoor air inlet on the bottom plate; an outdoor air inlet on the side panel at the bottom of the air mixing chamber; an air inlet switching valve is installed at the angle between the indoor air inlet and the outdoor air inlet, and the air inlet switching valve has indoor air position and outdoor air position. The three positions of the middle position and the middle position, the internal layout of this scheme is simple, the control logic is simple, the suction force distance of the fan is short, and the force is large.

Description

Convenience type cabinet type fresh air machine

technical field

The utility model designs an air purification device, in particular to a fresh fan.

Background technique

The fresh air fan is an effective fresh air system air purification equipment, which can circulate the indoor air. On the one hand, the indoor dirty air is discharged outside, and on the other hand, the fresh outdoor air is sterilized, disinfected, filtered and other measures, and then re-entered. When entering the room, let the room have fresh and clean air all the time. The fresh air fan uses the patented fresh air convection technology to achieve convection of the indoor air through independent air supply and induction, thereby maximizing the indoor air replacement. The new The built-in multifunctional purification system of the fan ensures that the air entering the room is clean and healthy.

The fresh air system needs to install air ducts, filters and other devices. Generally, the corresponding devices need to be arranged during the construction or decoration of the building. If you want to install a fresh air system in a room that has been decorated, the pipes can only be arranged for open pipes. Seriously affect the beauty of the house, and the fresh air system is very large, generally not suitable for home use. The cabinet fan developed by our company solves the problem that the fresh air equipment is large and the old house is not suitable for installation. The cabinet fan only needs to open a ventilation hole on the ordinary wall, and install the ventilation pipe of the cabinet fan to complete the fan installation. Compared with the original fresh air system, the volume of the cabinet fan is also greatly reduced. It is suitable for any ordinary family or small space, and can be purchased and installed at any time. The cabinet-type fan developed by our company filed an application with the State Intellectual Property Office on October 20, 2017. The application number is: zl201721373732.0, which records a cabinet-type fan. The plan is for indoor air purification, Air inlets for exhausting indoor air are respectively designed; air inlets for absorbing outdoor air and air outlets for exhausting air to the room are respectively designed, a total of four air outlets. In terms of power, a main fan is installed on the air path for air purification; a dedicated auxiliary motor is installed on the air air path for exhaust. The cabinet-type fan with this structure uses a lot of components, and there are many directions of air intake. The structure is still relatively complicated, and the operating power of the two motors is relatively large. The outdoor air inlet is located at the lower part of the cabinet, so the structure of the cabinet fresh air fan needs to be optimized.

Contents of the invention

In order to overcome the problems of complex structure, high power and small air output of the existing fresh air blower, the utility model provides a portable cabinet type fresh air blower with simple internal layout, small equipment volume and guaranteed wind output.

For realizing the above-mentioned purpose of the invention, the technical means adopted by the utility model are:

A convenient cabinet-type fresh air fan, including a casing, the top of the casing is a fresh air outlet, and a high-efficiency filter element installation compartment is arranged in the fresh air outlet; a medium-efficiency filter element installation compartment is arranged under the high-efficiency filter element installation compartment, and a There are a first partition and a second partition; the first partition and the second partition form an air passage switching chamber, and an air outlet is provided on the casing wall after the air passage switching chamber; the bottom of the second partition is fixed with a The fan installation plate, the fan installation plate divides the lower part of the casing into the fan compartment and the mixed air compartment, and the upper part of the fan compartment of the second partition is provided with the second ventilator; the position opposite to the second ventilator is provided with a vent Port 1; there is an air outlet switching valve next to the air outlet 1, and the air outlet switching valve has two positions: the air outlet position and the storage position; There is an outdoor air inlet; there is an air inlet switching valve at the angle between the indoor air inlet and the outdoor air inlet, and the air inlet switching valve has three positions: indoor air position, outdoor air position, and middle position.

The utility model provides a convenient cabinet-type fresh air fan with a simple internal layout and a small equipment volume. The indoor air inlet and the outdoor air inlet are located directly behind the fan, and the suction force distance of the fan is short and the force is large. The structure of this scheme only uses two switching valves to realize the switching of four working modes, and the control logic is simple.

The preferred version of the utility model:

Preferably, the first partition includes a horizontal portion and a downwardly inclined inclined portion, the inclined portion and the horizontal portion are integrated, the horizontal portion is fixed above the air outlet, and the inclined portion is fixed on the opposite side of the air outlet On the casing, the vent one is arranged on the inclined part.

Preferably, the air outlet switching valve is a valve plate that rotates around the connecting shaft next to the vent one; the second partition is provided with protruding ribs, and the protruding ribs cooperate with it when the air outlet switching valve is in the position.

Preferably, from the top of the protruding rib to the air outlet is a slope structure from inside to outside.

Preferably, a primary filter element is provided at the air inlet of the fan in the mixing chamber.

Description of drawings

Fig. 1 is a structural diagram of the utility model;

Figure 2 is a diagram of the air direction in the fresh air mode;

Figure 3 is a diagram of the air trend in the fresh air + purification mode;

Fig. 4 is the air trend diagram of purification mode;

Figure 5 is a diagram of the air direction in the exhaust mode;

Fig. 6 is the installation status diagram of the utility model.

In the figure, the fresh air outlet 1, the casing 2, the high-efficiency filter installation compartment 3, the medium-efficiency filter installation compartment 4, the first partition 5, the second partition 6, the air outlet 7, the mixed air compartment 8, and the primary filter element 9 , outdoor air inlet 10, indoor air inlet 11, air inlet switching valve 12, vent one 13, air outlet switching valve 14, sudden aid 15, air path switching compartment 16, vent two 17, machine compartment 18, fan mounting plate 19.

Detailed ways

The portable cabinet type fresh air fan provided by the utility model is more convenient to install than the existing fresh air system. This design does not need to pre-install the air supply pipe in the house, and can be purchased and installed at any time. The layout structure inside the portable cabinet type fresh air fan is designed as a combined air path. The cabinet body can be smaller.

The internal layout and structure of the new fan of the utility model are:

As shown in Figure 1-6, a portable cabinet-type fresh air fan includes a casing 2. The top of the casing 2 is the fresh air outlet 1, and the fresh air outlet 1 is provided with a high-efficiency filter element installation compartment 3; There is a medium-efficiency filter element installation warehouse 4, and the first partition plate 5 and the second partition plate 6 are arranged under the medium-efficiency filter element installation warehouse 4; After the switching chamber 16, the casing wall is provided with an air outlet 7; the bottom of the second partition 6 is fixedly connected with a fan mounting plate 19, and the fan mounting plate 19 divides the lower part of the casing 2 into a fan chamber 18 and a mixing chamber 8. The upper part of the fan compartment of the second partition 6 is provided with a vent 2 17; the position opposite to the vent 17 on the first partition 5 is provided with a vent 13; next to the vent 13 is provided with an air outlet switching valve 14, The air outlet switching valve 14 has two positions: the air outlet position and the storage position; the chassis 2 at the bottom of the mixing chamber is equipped with an indoor air inlet 11; the side plate of the bottom casing 2 of the mixing chamber is equipped with an outdoor air inlet 10; An air inlet switching valve 12 is arranged at an angle with the outdoor air inlet 10, and the air inlet switching valve 12 has three positions: an indoor air position, an outdoor air position, and a middle position.

Since the components shown in Figures 2-6 are consistent with those shown in Figure 1, no markings will be made after the defined component numbers in Figure 1.

In the utility model, one switching valve realizes the switching of the air flow direction in the machine, and one switching valve realizes the switching of the air intake form. This solution is a comprehensive function of the wind path, the layout of the machine is simple. The position of the fan is close to the air inlet, and the air path is very direct. The suction distance of the fan is short and the force is large, so as to avoid the loss of suction. This scheme only uses one fan to operate, and can guarantee the wind power. One, realize the switching of four working modes, the control logic is simple.

Between the first dividing plate 5 and the second dividing plate 6 is the wind path switching storehouse 16, the range between them promptly is provided with the size limit range of air outlet 7, is again the air of vent one 13 and vent two 17. flow distance. Usually the air outlet 7 will not limit the ventilation rate, if the air outlet 7 is set small, it may affect the air outlet, and the pressure on the air outlet will increase, and the distance between the first air outlet 13 and the second air outlet 17 should be designed smaller to reduce wind loss. Therefore, the first partition 5 is designed to be arranged obliquely downward from the side of the air outlet, and the first vent is arranged at the lower part of the first partition. Such setting promptly protects the reasonable size of the air outlet, and shortens the distance between the first air outlet and the second air outlet.

The air outlet switching valve 14 is a valve plate that rotates around the connecting shaft next to the air outlet 13. The second partition 6 is provided with a protruding rib 15, and the protruding aid 15 cooperates with it when the air outlet switching valve is in the position. , to block the air flow of the air path switching bin 16. The protruding ribs 15 can effectively avoid the excessive swing range of the air outlet switching valve 14, and at the same time ensure the tightness of the blocking state of the air path switching chamber 16.

The protruding rib 15 of the second partition to the side of the air outlet 7 is a slope structure from inside to outside. The advantage of this structure is to reduce the exhaust resistance, reduce the exhaust wind speed, and reduce the noise.

Preferably, a primary filter element 9 is provided at the air inlet of the fan in the mixing chamber 8 . The fan may be accompanied by some impurities when the outdoor wind enters, which may cause some damage to the fan. Installing a primary filter element can prevent damage to the fan by large particles.

The following is a detailed introduction to the air path of this scheme in conjunction with the accompanying drawings 2-5. The air flow path of each working mode of the new fan is:

Fresh air mode: In this working mode, the body introduces outdoor air and filters it into the room. As shown in Figure 2, the air inlet switching valve inside the machine body is in a horizontal state, at the indoor air position, and blocks the indoor air inlet, and the air outlet switching valve is in the position of the bin to block the air path switching bin. When the fan is running, the air enters the air mixing bin and the fan bin from the outdoor air inlet, and then enters the upper part of the body through the first vent and the second vent for filtering.

Fresh air + purification mode: In this working mode, the body simultaneously introduces outdoor air and indoor dirty air, and then enters the room through the top air outlet after being filtered. As shown in Figure 3, the air inlet switching valve inside the body is in the middle position, at an angle of 45 degrees, and the air outlet switching valve is in the position to block the air path switching bin. When the fan is running, it absorbs indoor dirty air and outdoor fresh air at the same time, and then the mixed air passes through vent 1 and vent 2 as in the fresh air mode, and is filtered and discharged from the top fresh air outlet.

Purification mode: In this working mode, the fresh air fan is to filter indoor polluted air. As shown in Figure 4, the air inlet switching valve is at the outdoor air position, which is in a vertical state to block the outdoor air inlet, and the air outlet switching valve is at the position , The indoor polluted air is filtered in the body through the suction of the fan and then returns to the room.

Exhaust mode: As shown in Figures 5 and 6, in this operating mode, the fresh air blower exhausts the indoor air to the outside. Of course, the exhaust air does not need to be filtered. The control logic opens the indoor air inlet, so that the air outlet switching valve turns To the position of the air outlet, the fan sucks the indoor air, and the air flows from the air path switching chamber to the air outlet.

Claims (5)

1. A portable cabinet-type fresh air fan, including a casing, the top of the casing is a fresh air outlet, and a high-efficiency filter element installation compartment is installed in the fresh air outlet; a medium-efficiency filter element installation compartment is provided under the high-efficiency filter element installation compartment, and a medium-efficiency filter element installation compartment There is a first partition and a second partition below; the first partition and the second partition form an air passage switching chamber, and an air outlet is provided on the casing wall behind the air passage switching chamber; the bottom of the second partition is fixed The fan installation plate is connected with the fan installation plate, which divides the lower part of the cabinet into the fan compartment and the mixed air compartment. There is an air outlet 1 at the opposite position; there is an air outlet switching valve next to the air outlet 1, and the air outlet switching valve has two positions: the air outlet position and the storage position; the bottom plate of the mixed air chamber is equipped with an indoor air inlet; The side panel of the bottom casing is provided with an outdoor air inlet; an air inlet switching valve is provided at the angle between the indoor air inlet and the outdoor air inlet, and the air inlet switching valve has three positions: indoor air position, outdoor air position, and middle position. 2. The portable cabinet-type fresh air blower according to claim 1, characterized in that: the first partition comprises a horizontal part and a downwardly inclined inclined part, the inclined part and the horizontal part are integrally structured, and the horizontal part is fixedly connected to the exhaust air Above the air outlet, the inclined part is fixedly connected to the casing on the other side opposite to the air exhaust port, and the first air vent is arranged on the inclined part. 3. The portable cabinet-type fresh air blower as claimed in claim 1, characterized in that: the air outlet switching valve is a valve plate that rotates around the connecting shaft next to the vent opening; the second partition is provided with protruding ribs, The rib cooperates with the air outlet switching valve when it is in the warehouse position. 4. The portable cabinet type fresh air blower according to claim 3, characterized in that: from the top of the protruding rib to the air outlet, there is a slope structure from inside to outside. 5. The portable cabinet-type fresh air blower as claimed in claim 1, characterized in that: the air inlet of the blower in the mixing chamber is provided with a primary filter element.