CN-224215501-U - Fresh air duct system, fresh air system and air conditioner

CN224215501UCN 224215501 UCN224215501 UCN 224215501UCN-224215501-U

Abstract

The application relates to a fresh air duct system, a fresh air system and an air conditioner, wherein the fresh air duct system comprises a shell and air She Guoke, an external air port and at least one first internal air port are arranged on the shell, a fan blade volute is arranged in the shell, a volute air duct is arranged in the fan blade volute, an exhaust air duct separated from the volute air duct is arranged between the outer wall of the volute and the inner wall of the shell, a second internal air port communicated with the volute air duct through a fourth air duct control valve is arranged on the shell, a first end of the volute air duct is communicated with the external air port through a first air duct control valve, a second end of the volute air duct is connected with the exhaust air duct and one of the at least one first internal air port through a second air duct control valve, the exhaust air duct is communicated with the external air port, and a third air duct control valve is arranged in the exhaust air duct. By controlling the on or off of each control valve, an air inlet channel or an air exhaust channel communicated with the external air port can be formed.

Inventors

SU HUA
CHI XIAOLONG
DU HUI
XU SHENG
CAO YING
ZHOU TAO

Assignees

珠海格力电器股份有限公司

Dates

Publication Date: 20260508
Application Date: 20250424

Claims (10)

1. The fresh air duct system is characterized by comprising a shell and air She Guoke, wherein an external air port and at least one first internal air port are arranged on the shell; the fan blade volute is positioned in the shell, a volute air channel is arranged in the fan blade volute, and an exhaust air channel separated from the volute air channel is arranged between the outer wall of the volute and the inner wall of the shell; The second end of the volute air channel is connected with one of the exhaust air channel and at least one first internal air port through a second air channel control valve; the second end of the volute air channel is communicated with an external air port by the air exhaust air channel, and a third air channel control valve is arranged in the air exhaust air channel; by controlling the conduction or closure of the first air duct control valve, the third air duct control valve, the four air duct control valves and each of the second air duct control valves, an air intake passage may be formed in a direction along the outer tuyere, the volute air duct and at least one first inner air port, or an air exhaust passage may be formed in a direction along the second inner tuyere, the volute air duct, the air exhaust air duct and the outer air port.
2. The fresh air duct system of claim 1, wherein the housing comprises a first housing and a second housing arranged in a double-layer and spaced apart relationship, the first housing and the second housing being in communication via a scroll through hole, the scroll duct and the exhaust duct each being disposed in the second housing, the scroll duct being disposed in the second housing and in communication with the scroll through hole; the air cavity is arranged at one side of the first shell and the second shell, is communicated with the space of the first shell through a first air channel control valve, and is communicated with the second end of the air exhaust air channel through a third control valve.
3. The fresh air duct system of claim 2, wherein the external tuyere comprises a first sub tuyere and a second sub tuyere which are symmetrically arranged; the first sub-tuyere is provided with at least one first guide plate, the second sub-tuyere is provided with at least one second guide plate, the number of the first guide plates is equal to that of the second guide plates, and the inclination angles of the first guide plates and the second guide plates are symmetrically arranged; and/or an air inlet partition plate is arranged in the first shell, and the center points of the first sub-air opening and the second sub-air opening are positioned on the extension line of the air inlet partition plate.
4. The fresh air duct system according to claim 2, wherein two necking deflectors are symmetrically arranged in the air cavity, and the two necking deflectors are arranged in an arc shape along the direction of the external air port to the interior of the first shell, so that the air inlet of the external air port is gathered and then blown into the first shell.
5. The fresh air duct system according to claim 2, wherein the first air duct control valve comprises a first air duct partition and a first driving mechanism, wherein a mounting hole is formed in the partition between the first housing and the second housing, the air duct partition is arranged in the mounting hole, the first driving mechanism can drive the first air duct partition to move in the mounting hole, the first air duct partition is moved into the first housing, the external air port is separated from the inner space of the first housing, the first air duct partition is moved into the second housing, and the external air port is communicated with the inner space of the first housing.
6. The fresh air duct system of claim 2, wherein the first internal tuyere comprises a fresh air direct-blowing tuyere and an air conditioner interface, and the second air duct control valve comprises: The first rotating partition plate corresponds to the position of the fresh air straight air outlet and can close or open the fresh air straight air outlet after rotating; a second rotating partition board corresponding to the air conditioner butt joint position and capable of closing or opening the air conditioner butt joint after rotating; A third rotary baffle plate corresponding to the position of the exhaust air duct and capable of closing or opening the exhaust air duct after rotation; And the second driving mechanism is used for driving the first rotating partition plate, the second rotating partition plate and the third rotating partition plate respectively.
7. The fresh air duct system of claim 6, wherein the third duct control valve comprises a third rotating partition and a third driving mechanism, the third rotating partition is arranged between the air cavity and the second port of the exhaust duct, and the third rotating partition can rotate to close or open the exhaust duct under the driving of the third driving mechanism.
8. The fresh air duct system of claim 2, further comprising a return air port; The air return port is arranged on the side surface of the first shell, and the air return port and the external air port are arranged on different side surfaces; The first shell is internally provided with a return air channel which is communicated with the volute through hole, and a return air channel control valve which controls the return air channel to be closed or opened is arranged in the return air channel.
9. A fresh air system comprising a centrifugal fan and a fresh air duct system according to any one of claims 1 to 8, the centrifugal fan being mounted in the fan blade volute.
10. An air conditioner, comprising the fresh air system according to claim 9, wherein the air inlet of the air conditioner is communicated with one of the first inner air inlets.

Description

Fresh air duct system, fresh air system and air conditioner Technical Field The application relates to the field of indoor units of central air conditioners, in particular to an air duct system, an indoor unit of a central air conditioner and an air conditioner. Background The fresh air conditioning unit combines multiple functions of air purification, temperature regulation, fresh air ventilation and the like, and can meet the pursuit of modern families on high-quality life. The development of the current fresh air conditioner is rapid, the current fresh air conditioner is a new development trend of the current air conditioner, the application of the current fresh air module is carried out on the wall-mounted machine and the air conditioner indoor unit, and the application of the current fresh air module on the wall-mounted machine and the air conditioner indoor unit is mainly unidirectional air supply, namely outdoor air is conveyed indoors, so that indoor air is fresh. However, if the indoor air is turbid, the indoor air is conveyed outwards, and the indoor air ventilation effect can be rapidly realized, for example, in a chess and card room or a room where people gather, once a plurality of people smoke the indoor air, the smoke of the indoor air is serious, and the requirement cannot be met only by conveying the air to the indoor. If the simultaneous outward air delivery is implemented in an existing fresh air conditioner, new pipes need to be added, and the arrangement of the pipes inside the fresh air conditioner will be very complex. Disclosure of utility model The application provides a fresh air duct system and an air conditioner, which are used for solving the technical problem that the arrangement of internal pipelines is complex when the internal of a fresh air conditioner is used for conveying air inwards and conveying air outwards simultaneously in the prior art. The utility model provides a fresh air duct system, which comprises: An outer shell and a wind She Guoke, wherein the outer shell is provided with an outer air port and at least one first inner air port; the fan blade volute is positioned in the shell, a volute air channel is arranged in the fan blade volute, and an exhaust air channel separated from the volute air channel is arranged between the outer wall of the volute and the inner wall of the shell; The second end of the volute air channel is connected with one of the exhaust air channel and at least one first internal air port through a second air channel control valve; the second end of the volute air channel is communicated with an external air port by the air exhaust air channel, and a third air channel control valve is arranged in the air exhaust air channel; by controlling the conduction or closure of the first air duct control valve, the third air duct control valve, the four air duct control valves and each of the second air duct control valves, an air intake passage may be formed in a direction along the outer tuyere, the volute air duct and at least one first inner air port, or an air exhaust passage may be formed in a direction along the second inner tuyere, the volute air duct, the air exhaust air duct and the outer air port. Optionally, the shell comprises a first shell and a second shell which are arranged in a double-layer manner and are mutually separated, the first shell and the second shell are communicated through a volute through hole, the volute air duct and the exhaust air duct are both arranged in the second shell, and the volute air duct is positioned in the second shell and is communicated with the volute through hole; the air cavity is arranged at one side of the first shell and the second shell, is communicated with the space of the first shell through a first air channel control valve, and is communicated with the second end of the air exhaust air channel through a third control valve. Optionally, the external tuyere comprises a first sub tuyere and a second sub tuyere which are symmetrically arranged; the first sub-tuyere is provided with at least one first guide plate, the second sub-tuyere is provided with at least one second guide plate, the number of the first guide plates is equal to that of the second guide plates, and the inclination angles of the first guide plates and the second guide plates are symmetrically arranged; and/or an air inlet partition plate is arranged in the first shell, and the center points of the first sub-air opening and the second sub-air opening are positioned on the extension line of the air inlet partition plate. Optionally, two necking guide plates are symmetrically arranged in the wind cavity, the outer wind gap points to the inner direction of the first shell, and the two necking guide plates are arranged in an arc shape, so that the air inlet of the outer wind gap is gathered and then blown into the first shell. Optionally, the first air duct control valve comprises a first air duct partition plate and a first drivi