CN210035696U - Air conditioner indoor unit and multi-split air conditioning system - Google Patents
Air conditioner indoor unit and multi-split air conditioning system Download PDFInfo
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- CN210035696U CN210035696U CN201920873785.1U CN201920873785U CN210035696U CN 210035696 U CN210035696 U CN 210035696U CN 201920873785 U CN201920873785 U CN 201920873785U CN 210035696 U CN210035696 U CN 210035696U
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Abstract
The utility model relates to an indoor set of air conditioner and many online air conditioning systems, the indoor set of air conditioner include the main casing body, fan and heat transfer module, and the main casing body has the fan and holds chamber, first wind channel and second wind channel, and the fan is located the fan and holds the intracavity, and heat transfer module is located first wind channel, and first wind channel holds chamber intercommunication or disconnection with the fan with the second wind channel is alternative respectively. When the air-conditioning indoor unit is in an air supply mode, the air flow is discharged out of the main shell through the second air duct, so that the air is driven to flow circularly. Because the air flow only flows out of the main shell through the second air duct and does not pass through the heat exchange module in the first air duct, the pressure in the heat exchange module is prevented from being reduced and having pressure difference with other air-conditioning indoor units in the heating mode, and further, the refrigerant is prevented from accumulating in the air-conditioning indoor units in the air supply mode, and therefore the phenomena that the air-conditioning indoor units blow hot air in the air supply mode, the heating effect of the air-conditioning indoor units in the heating mode is poor and the like are avoided.
Description
Technical Field
The utility model relates to an air conditioning technology field especially relates to an indoor set of air conditioner and multi-split air conditioning system.
Background
With the progress of science and technology and the development of society, air conditioning systems for adjusting indoor environmental temperature are widely applied to life and production of people. The multi-split air conditioning system can be connected with and control two or more indoor units only through one outdoor unit, has the characteristics of more convenience in installation, more flexibility in control, more environmental friendliness, more energy conservation and the like, and is gradually popular with people.
However, in special circumstances (e.g. cold and warm transition seasons), different indoor units located in different rooms may be set to different operation modes by users according to different needs. Wherein, part of the indoor units are in an air supply mode to enable indoor air to be in a circulating flow state, so that the comfort of the indoor environment is improved; meanwhile, part of the indoor units are in a heating mode to increase the indoor temperature.
In the indoor unit in the air supply mode, the valve of the heat exchange device still has a certain opening degree so as to be used for returning lubricating oil and a refrigerant. However, when the indoor unit is in the air supply mode, the pressure in the heat exchanger is lower than the pressure in the heat exchanger of the indoor unit in the heating mode due to the airflow flowing through the heat exchanger, so that more refrigerants flow to the indoor unit in the air supply mode under the action of the pressure difference, and the refrigerant is accumulated in the heat exchanger of the indoor unit in the air supply mode, and the refrigerant accumulated in the heat exchanger releases heat, so that the indoor unit in the air supply mode blows out hot air, and the heating effect of the indoor unit in the heating mode is poor, and finally, the user comfort and the energy-saving and environment-friendly performance of the air conditioning system are reduced.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide an air conditioning indoor unit and a multi-split air conditioning system having good simultaneous heating and air supply effects, aiming at the problem that the heating effect and the air supply effect are poor when the multi-split air conditioning system has a heating mode and an air supply mode at the same time.
An air-conditioning indoor unit comprises a main shell, a fan and a heat exchange module, wherein the main shell is provided with a fan accommodating cavity, a first air duct and a second air duct, the fan is positioned in the fan accommodating cavity, the heat exchange module is positioned in the first air duct, and the first air duct and the second air duct are respectively and selectively communicated with or disconnected from the fan accommodating cavity;
the air conditioner indoor unit can be selectively in an air supply mode or a heating mode;
when the indoor unit of the air conditioner is in the air supply mode, the first air duct is disconnected from the fan accommodating cavity, and the second air duct is communicated with the fan accommodating cavity;
when the indoor unit of the air conditioner is in the heating mode, the first air duct is communicated with the fan accommodating cavity.
When the air-conditioning indoor unit is in the air supply mode, the air flow is discharged out of the main shell through the second air duct, so that the purposes of driving the air to circularly flow and not changing the ambient temperature are achieved. Because the air flow only flows out of the main shell through the second air duct and does not pass through the heat exchange module in the first air duct, the pressure in the heat exchange module can be prevented from being reduced due to the flowing of the air flow and having pressure difference with other air-conditioning indoor units in the heating mode, and further, the refrigerant is prevented from accumulating in the air-conditioning indoor units in the air supply mode, and the phenomena that the air-conditioning indoor units blow hot air in the air supply mode, the heating effect of the air-conditioning indoor units in the heating mode is poor and the like are avoided.
In one embodiment, the first air duct and the second air duct are located on the same side of the fan accommodating cavity.
In one embodiment, the air-conditioning indoor unit comprises a first air valve capable of being opened and closed and a second air valve capable of being opened and closed; the first air valve is arranged at the joint of the first air channel and the fan accommodating cavity and is used for communicating or disconnecting the first air channel and the fan accommodating cavity; the second air valve is arranged at the joint of the second air channel and the fan accommodating cavity and used for communicating or disconnecting the second air channel and the fan accommodating cavity.
In one embodiment, the indoor unit of the air conditioner further comprises a functional module, and the functional module is located in the second air duct.
In one embodiment, the functional module is an electrically assisted thermal module.
In one embodiment, the heating mode comprises a first heating mode and a second heating mode;
when the indoor unit of the air conditioner is in the first heating mode, the electric auxiliary heating module is in a closed state, and the second air duct is disconnected with the fan accommodating cavity;
when the indoor unit of the air conditioner is in the second heating mode, the electric auxiliary heating module is in an open state, and the second air duct is communicated with the fan accommodating cavity.
In one embodiment, the functional module is a humidifying module.
In one embodiment, the air supply mode comprises a first air supply mode and a second air supply mode;
when the indoor unit of the air conditioner is in the first air supply mode, the humidifying module is in an open state;
and when the indoor unit of the air conditioner is in the second air supply mode, the humidifying module is in a closed state.
A multi-split air conditioning system comprises at least two air conditioning indoor units.
In one embodiment, the multi-split air conditioning system further includes an air conditioner outdoor unit, and each of the air conditioner indoor units is connected to the air conditioner outdoor unit.
Drawings
Fig. 1 is a schematic structural view of an indoor unit of an air conditioner of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, the present invention relates to a multi-split air conditioning system (not shown), which includes an outdoor unit (not shown) and at least two indoor units 100 connected to the outdoor unit, wherein each indoor unit 100 is respectively disposed in a room to adjust the temperature in the room, and the indoor units 100 in different rooms can be respectively in different modes to respectively control the indoor temperatures in different rooms.
Referring to fig. 1, each indoor unit 100 includes a main casing 20, a fan 40, and a heat exchange module 60. The main housing 20 is a hollow shell structure, and the main housing 20 has a fan accommodating cavity 21, a first air duct 23, and a second air duct 25.
Wherein, the fan holds the air inlet end and the external environment intercommunication of chamber 21, and fan 40 is located the fan and holds the intracavity 21. First wind channel 23 is located fan and holds chamber 21 one side, and the air inlet end of first wind channel 23 optionally holds the air-out end intercommunication or the disconnection in chamber 21 with the fan, and the air-out end and the external environment intercommunication of first wind channel 23, heat exchange module 60 are located first wind channel 23. The second air duct 25 is located on one side of the fan accommodating cavity 21 where the first air duct 23 is arranged, the air inlet end of the second air duct 25 is selectively communicated or disconnected with the air outlet end of the fan accommodating cavity 21, and the air outlet end of the second air duct 25 is communicated with the external environment.
Further, the indoor unit 100 of the air conditioner includes a first air valve capable of opening and closing and a second air valve capable of opening and closing (not shown). Wherein, first blast gate is installed in the junction of first wind channel 23 and fan holding chamber 21 for the intercommunication or break off first wind channel 23 and fan holding chamber 21. The second air valve is arranged at the joint of the second air duct 25 and the fan accommodating cavity 21 and used for communicating or disconnecting the second air duct 25 and the fan accommodating cavity 21.
Therefore, the multi-split air conditioning system can control the communication state of the first air duct 23, the second air duct 25 and the fan accommodating cavity 21 by controlling the opening and closing states of the first air valve and the second air valve. When the first air valve is in an open state, the first air duct 23 is communicated with the fan accommodating cavity 21, and when the first air valve is in a closed state, the first air duct 23 is disconnected from the fan accommodating cavity 21. When the second air valve is in an open state, the second air duct 25 is communicated with the fan accommodating cavity 21, and when the second air valve is in a closed state, the second air duct 25 is disconnected from the fan accommodating cavity 21.
Further, the indoor unit 100 may be selectively placed in a blowing mode or a heating mode. When the air conditioning indoor unit 100 is in the air blowing mode, the indoor air can be driven to circulate without changing the ambient temperature. When the air conditioning indoor unit 100 is in the heating mode, the ambient temperature may be increased.
Specifically, when the air conditioning indoor unit 100 is in the air supply mode, the first air valve is in the closed state, and the air inlet end of the first air duct 23 is disconnected from the air outlet end of the fan accommodating chamber 21; the second air valve is in an open state, and the air inlet end of the second air duct 25 is communicated with the air outlet end of the fan accommodating cavity 21.
In this way, when the air conditioning indoor unit 100 is in the air supply mode, the fan 40 in the fan accommodating cavity 21 can draw air in the external environment into the fan accommodating cavity 21 to form an air flow, and the air flow is discharged out of the main casing 20 through the second air duct 25, so as to achieve the purpose of driving the air to flow circularly without changing the ambient temperature. Since the air flow only flows out of the main casing 20 through the second air duct 25 and does not flow through the heat exchange module 60 in the first air duct 23, the pressure in the heat exchange module 60 is prevented from being reduced due to the air flow and from being different from that of the other air-conditioning indoor units 100 in the heating mode, and further, the refrigerant is prevented from accumulating in the air-conditioning indoor units 100 in the air supply mode, thereby preventing the air-conditioning indoor units 100 from blowing out hot air in the air supply mode and from deteriorating the heating effect of the air-conditioning indoor units 100 in the heating mode.
When the air conditioning indoor unit 100 is in the heating mode, the first air valve is in the open state, and the first air duct 23 is communicated with the fan accommodating chamber 21, so that the air flow generated by the fan 40 can enter the first air duct 23 and exchange heat with the heat exchange module 60, and then is discharged out of the main casing 20 through the first air duct 23.
In some embodiments, the air conditioning indoor unit 100 further includes a functional module 80, and the functional module 80 is located in the second air duct 25. In one embodiment, the functional module 80 is an electrically assisted thermal module that uses electrical energy to heat the airflow passing through it. When the first air duct 23 is provided with the electric auxiliary heating module therein, the heating mode includes a first heating mode and a second heating mode.
Specifically, when the air conditioning indoor unit 100 is in the first heating mode, the electric auxiliary heating module is in the closed state, the first air valve is in the open state, and the first air duct 23 is communicated with the fan accommodating chamber 21. The second air valve is in a closed state, and the second air duct 25 is disconnected from the fan accommodating chamber 21. At this time, since only the first air duct 23 communicates with the fan accommodating chamber 21, the air flow entering the first air duct 23 from the fan accommodating chamber 21 obtains heat from the heat exchange module 60, and finally flows out of the first air duct 23 to heat the external environment.
When the air conditioning indoor unit 100 is in the second heating mode, the first air duct 23 is in the open state, and the first air duct 23 is communicated with the fan accommodating chamber 21. The electric auxiliary heating module is in an opening state, the second air valve is also in an opening state, and the second air channel 25 is communicated with the fan accommodating cavity 21. At this moment, the first air duct 23 and the second air duct 25 are both communicated with the fan accommodating cavity 21, and the heat exchange module 60 and the electric auxiliary heating module heat air flow simultaneously, so that the heating effect is further improved.
It can be understood that when the first air duct 23 is not provided with the electric auxiliary heating module, and when the air conditioning indoor unit 100 is in the heating mode, the first air duct 23 is communicated with the fan accommodating cavity 21, and the second air duct 25 is disconnected from the fan accommodating cavity 21, so that all air flows obtain heat from the heat exchange module 60.
In another embodiment, the functional module 80 is a humidifying module for increasing the ambient humidity.
Specifically, when the humidification module is disposed in the second air duct 25, the air supply mode includes a first air supply mode and a second air supply mode. When the air conditioning indoor unit 100 is in the first air supply mode, the humidification module is in the on state, and thus the airflow flowing out of the second air duct 25 has a relatively high humidity, so that the humidity in the external environment can be increased, and a more comfortable environment can be created. When the air conditioning indoor unit 100 is in the second air supply mode, the humidification module is in the off state, so that the humidity of the air flow flowing out of the second air duct 25 is not increased.
The control method of the air-conditioning indoor unit 100 includes the following steps:
when the air conditioning indoor unit 100 is in the air supply mode, the first air duct 23 and the fan accommodating chamber 21 are disconnected, and the second air duct 25 and the fan accommodating chamber 21 are communicated.
Specifically, when the air conditioning indoor unit 100 is in the air supply mode, the first air valve is closed to disconnect the first air duct 23 from the fan accommodating chamber 21, and the second air valve is opened to communicate the second air duct 25 with the fan accommodating chamber 21. Like this, fan 40 in the fan holds the chamber 21 can form the air current with the air suction in the external environment fan holds the chamber 21, and the air current passes through second wind channel 25 discharge main casing body 20 to the realization drives the air circulation and flows and does not change ambient temperature's purpose.
When the air conditioning indoor unit 100 is in the heating mode, the first air duct 23 communicates with the fan accommodating chamber 21.
Specifically, when the air conditioning indoor unit 100 is in the heating mode, the first air valve is opened to communicate the first air duct 23 with the fan accommodating chamber 21, so that the air flow generated by the fan 40 can enter the first air duct 23, exchange heat with the heat exchange module 60, and then be discharged out of the main casing 20 through the first air duct 23.
Further, the heating mode includes a first heating mode and a second heating mode. When the air conditioning indoor unit 100 is in the heating mode, the step of communicating the first air duct 23 with the fan accommodating chamber 21 specifically includes the following steps:
when the air conditioning indoor unit 100 is in the first heating mode, the electric auxiliary heating module is in the off state, and the second air duct 25 is disconnected from the fan accommodating chamber 21.
Specifically, when the air conditioning indoor unit 100 is in the first heating mode, the electric auxiliary heating module is in the closed state, the first air valve is in the open state, and the first air duct 23 is communicated with the fan accommodating chamber 21. The second air valve is in a closed state, and the second air duct 25 is disconnected from the fan accommodating chamber 21. At this time, since only the first air duct 23 communicates with the fan accommodating chamber 21, the air flow entering the first air duct 23 from the fan accommodating chamber 21 obtains heat from the heat exchange module 60, and finally flows out of the first air duct 23 to heat the external environment.
When the air conditioning indoor unit 100 is in the second heating mode, the electric auxiliary heating module is in an open state, and the second air duct 25 is communicated with the fan accommodating chamber 21.
When the air conditioning indoor unit 100 is in the second heating mode, the first air duct 23 is in the open state, and the first air duct 23 is communicated with the fan accommodating chamber 21. The electric auxiliary heating module is in an opening state, the second air valve is also in an opening state, and the second air channel 25 is communicated with the fan accommodating cavity 21. At this moment, the first air duct 23 and the second air duct 25 are both communicated with the fan accommodating cavity 21, and the heat exchange module 60 and the electric auxiliary heating module heat air flow simultaneously, so that the heating effect is further improved.
In the air-conditioning indoor unit 100, the multi-split air-conditioning system and the control method, because the main casing 20 of the air-conditioning indoor unit 100 has the double-air-duct structure with the first air duct 23 and the second air duct 25, when one air-conditioning indoor unit 100 in the multi-split air-conditioning system is in the air supply mode, the air flow only flows out through the second air duct 25 without passing through the first air duct with the heat exchange module 60, so that the other air-conditioning indoor unit 100 in the heating mode is not affected by the air-conditioning indoor unit 100 in the air supply mode, the heating effect of the air-conditioning indoor unit 100 is ensured, and the air-conditioning indoor unit 100 in the air supply mode does not blow out hot air, so that the comfort of a user is ensured, and the normal operation of the whole multi-split air-.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. An air-conditioning indoor unit (100), wherein the air-conditioning indoor unit (100) comprises a main casing (20), a fan (40) and a heat exchange module (60), the main casing (20) is provided with a fan accommodating cavity (21), a first air duct (23) and a second air duct (25), the fan (40) is located in the fan accommodating cavity (21), the heat exchange module (60) is located in the first air duct (23), and the first air duct (23) and the second air duct (25) are respectively and selectively communicated with or disconnected from the fan accommodating cavity (21);
the air-conditioning indoor unit (100) can be selectively in an air supply mode or a heating mode;
when the indoor unit (100) of the air conditioner is in the air supply mode, the first air duct (23) is disconnected from the fan accommodating cavity (21), and the second air duct (25) is communicated with the fan accommodating cavity (21);
when the air-conditioning indoor unit (100) is in the heating mode, the first air duct (23) is communicated with the fan accommodating cavity (21).
2. The indoor unit (100) of claim 1, wherein the first air duct (23) and the second air duct (25) are located on the same side of the fan accommodating chamber (21).
3. The air conditioning indoor unit (100) of claim 1, wherein the air conditioning indoor unit (100) comprises a first air valve capable of being opened and closed and a second air valve capable of being opened and closed; the first air valve is arranged at the joint of the first air channel (23) and the fan accommodating cavity (21) and is used for communicating or disconnecting the first air channel (23) and the fan accommodating cavity (21); the second air valve is arranged at the joint of the second air duct (25) and the fan accommodating cavity (21) and used for communicating or disconnecting the second air duct (25) and the fan accommodating cavity (21).
4. The air conditioning indoor unit (100) of claim 1, wherein the air conditioning indoor unit (100) further comprises a functional module (80), and the functional module (80) is located in the second air duct (25).
5. The air conditioning indoor unit (100) of claim 4, wherein the functional module (80) is an electric auxiliary thermal module.
6. The air conditioning indoor unit (100) according to claim 5, wherein the heating mode includes a first heating mode and a second heating mode;
when the air-conditioning indoor unit (100) is in the first heating mode, the electric auxiliary heating module is in a closed state, and the second air duct (25) is disconnected from the fan accommodating cavity (21);
when the air-conditioning indoor unit (100) is in the second heating mode, the electric auxiliary heating module is in an open state, and the second air duct (25) is communicated with the fan accommodating cavity (21).
7. The air conditioning indoor unit (100) of claim 5, wherein the functional module (80) is a humidifying module.
8. The indoor unit (100) of claim 7, wherein the air supply modes include a first air supply mode and a second air supply mode;
when the indoor unit (100) of the air conditioner is in the first air supply mode, the humidifying module is in an open state;
when the air-conditioning indoor unit (100) is in the second air supply mode, the humidifying module is in a closed state.
9. A multi-split air conditioning system, characterized in that it comprises at least two air conditioning indoor units (100) according to any one of claims 1 to 8.
10. A multi-split air conditioning system as claimed in claim 9, further comprising an outdoor unit, wherein each of the indoor units is connected to the outdoor unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920873785.1U CN210035696U (en) | 2019-06-10 | 2019-06-10 | Air conditioner indoor unit and multi-split air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920873785.1U CN210035696U (en) | 2019-06-10 | 2019-06-10 | Air conditioner indoor unit and multi-split air conditioning system |
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| CN210035696U true CN210035696U (en) | 2020-02-07 |
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| CN201920873785.1U Active CN210035696U (en) | 2019-06-10 | 2019-06-10 | Air conditioner indoor unit and multi-split air conditioning system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207279A (en) * | 2019-06-10 | 2019-09-06 | 珠海格力电器股份有限公司 | Air conditioner indoor unit, multi-online air-conditioning system and control method |
| CN114158233A (en) * | 2020-09-08 | 2022-03-08 | 维谛技术有限公司 | Indirect evaporative cooling air conditioning unit and operation control method and device thereof |
| CN114158233B (en) * | 2020-09-08 | 2024-05-31 | 维谛技术有限公司 | Indirect evaporative cooling air conditioning unit, and operation control method and device thereof |
-
2019
- 2019-06-10 CN CN201920873785.1U patent/CN210035696U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207279A (en) * | 2019-06-10 | 2019-09-06 | 珠海格力电器股份有限公司 | Air conditioner indoor unit, multi-online air-conditioning system and control method |
| CN114158233A (en) * | 2020-09-08 | 2022-03-08 | 维谛技术有限公司 | Indirect evaporative cooling air conditioning unit and operation control method and device thereof |
| CN114158233B (en) * | 2020-09-08 | 2024-05-31 | 维谛技术有限公司 | Indirect evaporative cooling air conditioning unit, and operation control method and device thereof |
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