阅读说明：本技术 室内机和空调器 (Indoor unit and air conditioner ) 是由 刘喜岳 李跃飞 吴彦东 于 2019-11-04 设计创作，主要内容包括：本发明提供了一种室内机和空调器,其中,室内机包括：壳体,壳体内形成有风道；风机组件,设于风道内,且风机组件包括蜗壳以及设于蜗壳内的风机,其中,风道的进风口处设有与蜗壳的蜗舌对应设置的第一挡板。通过本发明的技术方案,可有效降低噪声,减少振动,增大换热效率和送风效率,且对进风量影响较小,有利于提高室内机出风的舒适度。(The invention provides indoor units and an air conditioner, wherein each indoor unit comprises a shell, an air duct is formed in each shell, a fan assembly is arranged in each air duct and comprises a volute and a fan arranged in each volute, and a th baffle plate arranged corresponding to a volute tongue of each volute is arranged at an air inlet of each air duct.)

An indoor unit , comprising:

the air duct is formed in the shell;

a fan assembly arranged in the air duct and comprising a volute and a fan arranged in the volute,

and an th baffle plate corresponding to the volute tongue of the volute is arranged at the air inlet of the air duct.

2. The indoor unit according to claim 1, further comprising:

the middle clapboard is arranged in the shell, the shell forms an air cavity and a heat exchange cavity through the middle clapboard,

the fan assembly is arranged in the air cavity, and an opening corresponding to the air outlet of the volute is formed in the middle partition plate.

3. The indoor unit according to claim 2, further comprising:

the heat exchanger is arranged in the heat exchange cavity, and the air flowing into the volute from the air inlet of the air duct is discharged outwards from the air outlet of the air duct after being subjected to heat exchange by the heat exchanger;

and the water receiving tray is arranged in the heat exchange cavity, and is arranged below the heat exchanger.

4. The indoor unit of claim 2, wherein end faces of the scroll casing are provided with scroll casing air inlets, and air in the air chamber flows into the fan through the scroll casing air inlets.

5. The indoor unit of claim 4, wherein the length of the th baffle is less than the minimum distance between the volute inlet and the median septum projected on the end face of the volute.

6. The indoor unit of claim 4, wherein the diameter of the wind wheel in the fan is larger than the diameter of the volute inlet.

7. The indoor unit of claim 2, wherein the ratio of the minimum distance between the outer edge of the wind wheel in the fan and the projection of the middle partition plate on the end face of the volute to the diameter of the wind wheel is in the range of 0.2-0.7.

8. The indoor unit of claim 2, wherein the air inlet of the air duct is disposed on the bottom plate of the casing, the end of the th baffle is connected to the middle partition plate, and the other end of the th baffle extends from the heat exchange chamber to the direction of the air chamber.

9. The indoor unit of claim 8, wherein the th baffle is disposed perpendicular to an air intake direction.

10. The indoor unit according to claim 2, further comprising:

and the end of the second baffle plate is connected with the side plate of the air cavity far away from the middle partition plate , and the other end of the second baffle plate extends from the air cavity to the direction of the heat exchange cavity.

11. The indoor unit according to claim 10, wherein the air chamber has a rectangular parallelepiped shape, and a sum of a height of the air chamber, a length of the th flap, and a length of the second flap is a length of the air chamber.

12. The indoor unit of claim 1, wherein the fan is a centrifugal fan, and the air inlet of the air duct is formed in a side plate of the casing corresponding to the circumferential direction of the centrifugal fan.

An air conditioner of the type , comprising:

an outdoor unit;

the indoor unit of any of claims 1 to 12, wherein the indoor unit is connected to the outdoor unit by piping.

Technical Field

The invention relates to the technical field of air conditioners, in particular to an indoor unit and air conditioners.

Background

At present, a centrifugal fan is often adopted in an air conditioning system as a ventilation device, and after air enters through an air duct of the air conditioning system, the air is sent to an evaporator by the centrifugal fan to exchange heat, and then air outlet airflow is generated. However, in the existing air conditioning system, the noise generated in the air flowing process is large, and particularly when the fan rotates at a high speed, the noise decibel rises suddenly, which is not beneficial to the use of users; if adopt and fall the device of making an uproar and will cause the decay of return air amount of wind, influence air conditioning efficiency again.

Disclosure of Invention

The present invention is directed to solving at least the technical problems identified in the prior art or related art .

To this end, of the present invention are directed to providing indoor units.

Another objects of the invention are to provide kinds of air conditioners.

In order to achieve the above object, the technical solution of the aspect of the invention provides a indoor unit, which includes a housing, an air duct formed in the housing, and a fan assembly disposed in the air duct and including a volute and a fan disposed in the volute, wherein a th baffle disposed corresponding to a volute tongue of the volute is disposed at an air inlet of the air duct.

According to the technical scheme of the aspect of the invention, the indoor unit comprises a shell and a fan assembly, wherein an air duct is formed in the shell, and the fan assembly is arranged in the air duct to suck air through the fan assembly and supply the air to a target position.

It can be understood that the volute tongue of the volute is of a special structure, and the volute has a large size change at the position, so that the inlet air is blocked by to a certain degree, and noise is easily generated in the air inlet process.

In addition, the indoor unit in the above technical solution provided by the present invention may further have the following additional technical features:

in the above technical scheme, the indoor unit further comprises a middle partition plate arranged in the casing, the casing forms an air cavity and a heat exchange cavity through the middle partition plate, wherein the fan assembly is arranged in the air cavity, and an opening corresponding to the air outlet of the volute is formed in the middle partition plate.

The fan assembly is arranged in the air cavity, and the middle partition plate is provided with an opening which is correspondingly arranged with an air outlet of the volute, so that the air cavity is connected with the opening of the middle partition plate through the air outlet of the volute, the air cavity is communicated with the heat exchange cavity, the part of the air cavity except the air outlet of the volute is sealed with the heat exchange cavity, and the air in the air cavity can flow into the heat exchange cavity for heat exchange only through the fan assembly.

In the above technical solution, the indoor unit further includes: the heat exchanger is arranged in the heat exchange cavity, and the air flowing into the volute from the air inlet of the air duct is discharged outwards from the air outlet of the air duct after being subjected to heat exchange by the heat exchanger.

Specifically, air flowing into the volute from the air inlet of the air duct forms airflow with constant flow rate and flow direction under the action of the fan assembly, the airflow flows into the heat exchanger from the air outlet of the volute, and after the heat exchange with the heat exchanger, the airflow is sent out from the air outlet of the shell at the corresponding flow rate and flow direction to adjust the outside air.

In addition, the indoor unit further includes: the water receiving tray is arranged in the heat exchange cavity and is arranged below the heat exchanger.

In this technical scheme, through be equipped with the water collector in the heat transfer chamber, and the below of heat exchanger is located to the water collector to water droplet that the heat exchanger heat transfer in-process produced is connect greatly, prevents that water droplet from leaking the influence environment to the casing is outer. It can be understood that the water vapor in the air is easy to cool and condense into liquid water drops in the heat exchange process, thereby causing water leakage.

In the above technical scheme, end faces of the volute are provided with volute air inlets, and air in the air cavity flows into the fan through the volute air inlets.

In the technical scheme, the end faces of the volute are provided with the volute air inlets, so that when air in the air cavity enters the volute air inlets, orderly air flow is formed under the action of the fan, the air entering the volute is prevented from jumping to other directions, noise generated at the air inlets is further reduced by , vibration generated by air flow disturbance can be reduced, and the stability of the fan assembly is favorably enhanced.

In the above technical solution, the length of the th baffle is less than the minimum distance between the volute air inlet and the projection of the middle partition plate on the end surface of the volute.

In the technical scheme, the length of the th baffle is smaller than the minimum distance between the volute air inlet and the middle partition board, more accurately, the length of the th baffle is smaller than the projection of the volute air inlet and the middle partition board on the end surface of the volute, so that the blocking effect of the th baffle on the inlet air flow of the volute air inlet is reduced, the influence on the inlet air flow is reduced, meanwhile, the air flow of the volute air inlet can be prevented from flowing to the volute tongue of the volute, and the noise is reduced.

In the technical scheme, the diameter of the wind wheel in the fan is larger than that of the volute air inlet.

In the technical scheme, the diameter of the wind wheel in the fan is set to be larger than that of the volute air inlet, so that the rotating surface of the wind wheel can completely cover the volute air inlet, the air flow flowing into the fan from the volute air inlet is completely stirred by the wind wheel, a rotary air flow is formed and flows into the heat exchange cavity from the volute air outlet, and the air flow flowing into the volute air inlet without the action of the fan and the rotary air flow are prevented from generating disturbance and forming noise.

In the technical scheme, the ratio of the minimum distance between the outer edge of the wind wheel in the fan and the projection of the middle partition board on the end face of the volute to the diameter of the wind wheel is 0.2-0.7.

In the technical scheme, the ratio of the minimum distance between the projection of the outer edge of the wind wheel on the fan and the projection of the middle partition board on the outer edge of the wind wheel to the diameter of the wind wheel is within the range of 0.2-0.7 by limiting the wind wheel on the end surface of the volute, so that the space inside the wind cavity is fully utilized, and the airflow at the air outlet of the volute flows to the heat exchange cavity at a preset speed and direction. It can be understood that if the ratio is too large, the partition board in the convergence of the wind wheels is further, the volute tongue of the volute is longer in size, and the noise amount is obviously increased; if the ratio is too small, the wind wheel is close to the middle partition plate, the size of the volute tongue of the volute is too small, the direction of the airflow at the air outlet of the volute is not easy to control, and the air outlet direction of the indoor unit is affected.

In the above technical solution, the air inlet of the air duct is arranged on the bottom plate of the housing, the end of the th baffle is connected with the middle partition plate, and the other end of the th baffle extends from the heat exchange cavity to the direction of the air cavity.

It can be understood that the indoor unit is set at higher indoor position, the air flow is relatively smooth, through setting end of baffle plate is connected with middle baffle plate, another end is extended from heat exchange cavity to wind cavity, the air flow of air inlet is limited to volute tongue of volute to reduce noise, at the same time, baffle plate can be formed with middle baffle plate or shell , it is favourable for simplifying processing flow.

In the technical scheme, the th baffle is perpendicular to the air inlet direction of air.

In the technical scheme, the th baffle is arranged perpendicular to the air inlet direction of the air to enhance the blocking effect of the th baffle on the air in the air inlet, and the guiding effect of the th baffle on the air in the air inlet is relatively weakened, so that the disturbance between the air flows at the air inlet is further reduced by steps, and the flow of the air to the volute tongue of the volute is also reduced.

In the technical scheme, the indoor unit further comprises a second baffle, wherein an end of the second baffle is connected with a side plate of the air cavity far away from the middle partition , and the other end of the second baffle extends from the air cavity to the direction of the heat exchange cavity.

In the technical scheme, a side plate on the side far away from the middle partition plate in the air cavity is provided with a second baffle plate so as to limit the airflow of the air inlet in the step and reduce noise and vibration, specifically, the end of the second baffle plate is connected with the side plate on the side far away from the middle partition plate in the air cavity, and the right wind shape at the other end extends towards the direction of the heat exchanger so that the second baffle plate corresponds to the -th baffle plate and cooperates with the -th baffle plate to limit the airflow from the air inlet of the air channel, so that the airflow directly flowing into the volute is increased, and the airflow entering the air channel but not flowing into the volute is reduced.

In the technical scheme, the wind cavity is cuboid, and the sum of the height of the wind cavity, the length of the th baffle and the length of the second baffle is the length of the wind cavity.

According to the technical scheme, the wind cavity is rectangular, the sum of the height of the wind cavity, the length of the baffle and the length of the second baffle is limited to be equal to the length of the wind cavity, namely the length of the wind inlet of the wind cavity is equal to the height of the wind cavity, so that the wind inlet area can cover the whole volute to increase the wind inlet volume.

In the above technical scheme, the fan is a centrifugal fan, and the air inlet of the air duct is arranged on the side plate corresponding to the circumferential direction of the centrifugal fan in the shell.

The air inlet of the air duct is arranged on a side plate in the shell corresponding to the circumferential direction of the centrifugal fan, so that air at different heights in a room can be enabled to circularly flow, and the air adjusting range of the indoor unit can be expanded.

The invention provides air conditioners in the second technical scheme, which comprises an outdoor unit and the indoor unit of item in the technical scheme of , wherein the indoor unit is connected with the outdoor unit through a pipeline.

According to a second aspect of the present invention, the outdoor unit and the indoor unit of any item in the aspect are included, and the indoor unit and the outdoor unit are connected by a pipeline, so that the present invention has all the advantages of the indoor unit of any item in the aspect, and details are not repeated here.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

figure 1 shows a schematic view of an indoor unit according to embodiments of the invention;

figure 2 shows a schematic view of an indoor unit according to embodiments of the invention;

figure 3 shows a schematic view of an indoor unit according to embodiments of the invention;

fig. 4 shows a wind volume attenuation line graph of the indoor unit according to embodiments of the present invention;

figure 5 shows a schematic view of an indoor unit according to embodiments of the invention;

fig. 6 shows a noise comparison list of the indoor unit according to embodiments of the present invention.

Wherein the correspondence between reference numbers and components in fig. 1 to 3 and 5 is as follows:

the heat exchanger comprises a shell 1, an th baffle 11, a 12 middle partition plate, a 13 second baffle, a 14 th air inlet, a 15 th air outlet, a 16 th air cavity, a 17 th heat exchange cavity, a 2 nd fan assembly, a 21 st volute, a 211 th volute tongue, a 212 th volute air outlet, a 213 th volute air inlet, a 22 nd centrifugal fan, a 3 rd heat exchanger and a 4 th water pan.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understandable, the present invention is described in detail in below with reference to the accompanying drawings and detailed description.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

An indoor unit and an air conditioner according to embodiments of the present invention will be described with reference to fig. 1 to 6.