Air conditioner indoor unit

Abstract

The present invention discloses an air conditioner indoor unit, comprising: a housing, an indoor heat exchanger, an air flow driving member, and a heating assembly. A heat exchange air duct and a radiation heating cavity are provided inside the housing. The heat exchange air duct has an air return opening and an air supply opening, and the radiation heating cavity has a radiation opening. The indoor heat exchanger is disposed inside the heat exchange air duct. The air flow driving member is used for driving air flow to flow from the air return opening to the air supply opening. The heating assembly is disposed inside the radiation heating cavity, and the heating assembly is configured to be adapted to radiate heat from the radiation opening to the outside of the housing. The air conditioner indoor unit according to the embodiment of the present invention can provide a faster heating speed.

Description

Technical Field

[0001] The present invention relates to the technical field of air treatment, and particularly to an air conditioner indoor unit. Background Art

[0002] When the air conditioner starts heating, the heating efficiency is low at the start of the air conditioner, and the air conditioner indoor unit cannot quickly provide hot air. There is a cold air prevention stage in the heating system, resulting in a slow heating speed and unable to meet the needs of users. Summary of the Invention

[0003] An object of the present invention is to provide an air conditioner indoor unit that can provide a faster heating speed.

[0004] The air conditioner indoor unit according to an embodiment of the present invention includes: a housing, an indoor heat exchanger, an air flow driving member, and a heating assembly. The housing has a heat exchange air duct and a radiation heating cavity. The heat exchange air duct has an air return opening and an air supply opening. The radiation heating cavity has a radiation opening. The indoor heat exchanger is disposed in the heat exchange air duct. The air flow driving member is used to drive air flow from the air return opening to the air supply opening. The heating assembly is disposed in the radiation heating cavity, and the heating assembly is configured to be suitable for radiating heat from the radiation opening to the outside of the housing.

[0005] The air conditioner indoor unit according to an embodiment of the present invention can provide a faster heating speed.

[0006] In addition, the air conditioner indoor unit according to the above embodiment of the present invention may further have the following additional technical features:

[0007] In some embodiments, the radiation heating cavity has a ventilation opening, and the ventilation opening is suitable for communicating with the heat exchange air duct.

[0008] In some embodiments, a radiation air guiding plate is provided at the ventilation opening. The radiation air guiding plate is movable between an open position and a closed position. The radiation air guiding plate opens the ventilation opening in the open position to communicate the radiation heating cavity with the heat exchange air duct, and the radiation air guiding plate closes the ventilation opening in the closed position to separate the radiation heating cavity from the heat exchange air duct.

[0009] In some embodiments, the radiation air guiding plate is configured to be rotatable between the open position and the closed position, and the radiation air guiding plate inclines towards the ventilation opening relative to the air outlet direction of the heat exchange air duct in the open position.

[0010] In some embodiments, when the radiation air guiding plate is in the open position, in the cross-section of the air conditioner indoor unit: the axis of the heating assembly and the upstream side of the ventilation opening are on a first straight line, and one end of the radiation air guiding plate extends out of the first straight line and has a first distance from the first straight line.

[0011] In some embodiments, when the radiation air deflector is in the open position, in the cross-section of the indoor unit of the air conditioner: the axis of the heating assembly and the downstream side of the air vent are on a second straight line, and the other end of the radiation air deflector extends beyond the second straight line and has a second spacing from the second straight line.

[0012] In some embodiments, both the first spacing and the second spacing are in the range of 3 millimeters to 10 millimeters.

[0013] In some embodiments, the inner wall surface of the heat exchange air duct is provided with a recess, the recess is located upstream of the air vent, and when the radiation air deflector is in the closed position, it is embedded in the recess and the surface of the radiation air deflector is flush with the inner wall surface of the heat exchange air duct.

[0014] In some embodiments, the air flow driving member is a cross-flow fan, and the air vent is provided on the air duct wall opposite to the volute tongue in the air outlet section of the heat exchange air duct.

[0015] In some embodiments, the housing includes a plastic outer shell and a reflector cover, the reflector cover is connected to the bottom of the plastic outer shell, a radiation heating cavity is formed inside the reflector cover, and the reflector cover is configured to be suitable for reflecting the heat of the heating assembly and radiating it from the radiation port to the outside of the housing. Among them, the minimum spacing A between the reflector cover and the plastic outer shell is not less than 3 millimeters.

[0016] In some embodiments, the radiation port is arranged adjacent to the air supply port.

[0017] In some embodiments, the radiation heating cavity is arranged at the bottom of the housing, and the radiation port opens downward.

[0018] In some embodiments, a protective net is provided at the radiation port, and the protective net covers the radiation port.

[0019] In some embodiments, the heating assembly includes a heating tube and a radiator, and the radiator is connected to the heating tube. Description of the Drawings

[0020] Figure 1 is a schematic diagram of an indoor unit of an air conditioner according to an embodiment of the present invention.

[0021] Figure 2 is a schematic diagram of an indoor unit of an air conditioner according to an embodiment of the present invention.

[0022] Figure 3 is a schematic diagram of an indoor unit of an air conditioner according to an embodiment of the present invention.

[0023] Figure 4It is a partial enlarged schematic view of an air conditioner indoor unit according to an embodiment of the present invention.

[0024] Reference numerals: air conditioner indoor unit 100, heat exchange air duct 101, air return opening 102, air supply opening 103, radiation heating cavity 104, radiation opening 105, ventilation opening 106, depression 107, housing 11, plastic outer shell 111, reflector 112, protection net 113, minimum distance A, indoor heat exchanger 12, air flow driving member 13, heating assembly 14, radiation air guide plate 15, first straight line L1, first distance B, second straight line L2, second distance C. Detailed implementation manners

[0025] When the air conditioner is turned on and operates for heating, the temperature of the indoor heat exchanger 12 needs to be slowly increased. At the beginning of the air conditioner operating for heating, if the indoor fan is turned on at this time, the air flow sent out by the air conditioner is cold air, which will affect the comfort of the user. In order to avoid discomfort caused to the user by sending cold air when starting up, the anti-cold air mode can be operated at the beginning of the air conditioner operation, that is, the indoor fan is not turned on at the beginning of the air conditioner operation.

[0026] However, from the user's perspective, if the anti-cold air mode is operated after the user turns on the air conditioner, the user not only does not feel the temperature increase, but also the air conditioner does not seem to give feedback; and at the beginning of the air conditioner being turned on, directly sending air to the user may affect the comfort of the user and cannot meet the heating needs of the user.

[0027] For this reason, the present invention provides an air conditioner with a radiation heating function. When the air conditioner cannot meet the heating needs of the user, heating can be performed through a radiation heating structure, so as to quickly increase the indoor temperature and meet the heating needs of the user.

[0028] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0029] Combined with Figures 1 to 4 , the air conditioner indoor unit 100 according to an embodiment of the present invention includes a housing 11, an indoor heat exchanger 12, an air flow driving member 13, and a heating assembly 14. Among them, the indoor heat exchanger 12 can be used to adjust the indoor environmental temperature, and the heating assembly 14 can directly heat the indoor environment.

[0030] Specifically, there is a heat exchange air duct 101 inside the housing 11. The heat exchange air duct 101 has a return air outlet 102 and a supply air outlet 103. The indoor heat exchanger 12 is arranged inside the heat exchange air duct 101. The air flow driving member 13 is used to drive the air flow to flow from the return air outlet 102 to the supply air outlet 103. Under the driving action of the air flow driving member 13, the air flow can return from the return air outlet 102 and enter the heat exchange air duct 101. If the supply air outlet 103 is in an open state, the air flow will be sent out from the supply air outlet 103. Among them, the indoor heat exchanger 12 is arranged inside the heat exchange air duct 101. When the air conditioner indoor unit 100 operates for heating (or cooling), when the air flow passes through the indoor heat exchanger 12, it will exchange heat with the indoor heat exchanger 12, so that the heat-exchanged air flow can be provided through the supply air outlet 103, achieving the purpose of adjusting the indoor environmental temperature.

[0031] In addition, there is also a radiation heating cavity 104 inside the housing 11. The radiation heating cavity 104 has a radiation opening 105. The heating component 14 is arranged inside the radiation heating cavity 104, and the heating component 14 is configured to be suitable for radiating heat from the radiation opening 105 to the outside of the housing 11. When the heating component 14 is turned on, the heating component 14 can radiate heat to the outside of the housing 11 (indoors) through the radiation opening 105 to meet the needs of users. Especially when the heat provided by the heat exchange air duct 101 cannot meet the needs of users, or when the indoor heat exchanger 12 does not operate, the heating component 14 can be used for heat supplement.

[0032] For the air conditioner indoor unit 100 according to the embodiment of the present invention, by providing the radiation heating cavity 104 and the heating component 14, the needs of users can be met. When the heat provided by the heat exchange air duct 101 is insufficient or the heat exchange air duct 101 is in the anti-cold wind stage, the heating component 14 can provide radiant heating to the indoor environment, so that the indoor environmental temperature can be quickly adjusted and the comfort of the indoor environment can be improved.

[0033] The heating component 14 in the present invention can be used in the anti-cold wind stage of the air conditioner. At this time, the heat exchange air duct 101 does not provide heat or the heat provided is insufficient. At this time, the heating component 14 can be used for heat supplement, so that the indoor temperature can be quickly increased. Of course, the technical solution to be protected by the present invention is not limited to this. The heating component 14 in the present invention can also be applied to other situations. For example, when the heat provided by the heat exchange air duct 101 is insufficient (such as during defrosting or other modes), the heating component 14 can be used to provide radiant heat to supplement the heat to the indoor environment and directly heat the indoor air through the heating component 14, so that the temperature of the indoor environment can be better maintained.

[0034] Among them, the heating component 14 in the present invention can be arranged to directly radiate heat to the radiation port 105; it can also be arranged to reflect the heat of the heating component 14 towards the radiation port 105 through the reflection of the inner surface of the radiation heating cavity 104; it can also be arranged that while the heating component 14 directly radiates heat to the radiation port 105, the inner surface of the radiation heating cavity 104 reflects the heat of the heating component 14 towards the radiation port 105.

[0035] Among them, the heating component 14 in the present invention can be arranged as a radiation heating structure. For example, the heating component 14 can include a carbon fiber electric heating tube, a quartz electric heating tube, etc.

[0036] The heating component 14 in the present invention can independently heat the room, that is, radiate heat to the room through the heating component 14, so as to heat the indoor environment. At this time, the radiation heating cavity 104 where the heating component 14 is located can be completely separated from the heat exchange air duct 101; in addition, the air flow driving member 13 of the heat exchange air duct 101 can be used to drive the air flow to circulate in the radiation heating cavity 104, so that the air flow can exchange heat with the heating component 14, improving the heat exchange efficiency and effect. At this time, the radiation heating cavity 104 can be communicated with the heat exchange air duct 101; in addition, a driving structure can be separately provided to drive the air flow in the radiation heating cavity 104 to circulate, so that the indoor temperature can be adjusted separately through the heating component 14. In this regard, the present invention provides different implementation manners.

[0037] Combined with Figures 1 to 4 , in some embodiments of the present invention, the radiation heating cavity 104 has a ventilation port 106, and the ventilation port 106 is adapted to be communicated with the heat exchange air duct 101. Among them, the ventilation port 106 being adapted to be communicated with the heat exchange air duct 101 includes at least the following solutions: it can be arranged that the ventilation port 106 of the radiation heating cavity 104 is always communicated with the heat exchange air duct 101, that is to say, the radiation heating cavity 104 is always communicated with the heat exchange air duct 101; it can also be arranged that the ventilation port 106 of the radiation heating cavity 104 is selectively communicated with and not communicated with the heat exchange air duct 101, that is to say, under certain conditions, the ventilation port 106 of the radiation heating cavity 104 is communicated with the heat exchange air duct 101. At this time, since the radiation heating cavity 104 is communicated with the heat exchange air duct 101 through the ventilation port 106, the air flow in the heat exchange air duct 101 can be sent out through the radiation heating cavity 104. When the air flow passes through the radiation heating cavity 104, it can be heated by the heating component 14, so as to increase the temperature of the air flow sent to the room. And under some conditions, the ventilation port 106 of the radiation heating cavity 104 is not communicated with the heat exchange air duct 101. At this time, when the heating component 14 is started, the heating component 14 can radiate heat outwards.

[0038] Since the radiation heating chamber 104 in the present invention has a ventilation opening 106, the radiation heating chamber 104 can communicate with the heat exchange air duct 101 through the ventilation opening 106, and the air flow will pass through the radiation heating chamber 104 during the flowing process. Compared with relying solely on radiation heating, after communicating with the heat exchange air duct 101, the heat of the heating component 14 can quickly flow to all corners of the room under the action of the air flow, thereby effectively improving the uniformity of the indoor environmental temperature and improving the heating and temperature maintaining effects on the indoor environment.

[0039] Optionally, the opening and closing condition of the ventilation opening 106 can be adjusted by setting a radiation air deflector 15. Specifically, in some embodiments of the present invention, a radiation air deflector 15 is provided at the ventilation opening 106. The radiation air deflector 15 is movable between an open position and a closed position. The radiation air deflector 15 opens the ventilation opening 106 in the open position to communicate the radiation heating chamber 104 with the heat exchange air duct 101, and the radiation air deflector 15 closes the ventilation opening 106 in the closed position to separate the radiation heating chamber 104 from the heat exchange air duct 101. During use, the radiation air deflector 15 can be opened and closed as needed. When it is necessary to heat the air flow in the heat exchange air duct 101 through the radiation heating chamber 104 and the heating component 14, the radiation air deflector 15 can be opened, so that the air flow in the heat exchange air duct 101 can be heated by the heating component 14 and sent out through the radiation port 105 after being heated; when it is not necessary to heat the air flow in the heat exchange air duct 101 through the radiation heating chamber 104 and the heating component 14, the radiation air deflector 15 can be closed, and the air flow in the heat exchange air duct 101 no longer passes through the radiation heating chamber 104.

[0040] Therefore, by setting the radiation air deflector 15 at the ventilation opening 106, different heating forms can be realized by opening and closing the radiation air deflector 15. It can be selected according to actual needs to meet the different working requirements of the air conditioner indoors and meet the requirements of users for the indoor unit 100 of the air conditioner.

[0041] For example, when the radiation air deflector 15 is closed, the heat exchange air duct 101 is separated from the radiation heating chamber 104. During the operation of the air flow driving member 13, the air flow in the heat exchange air duct 101 circulates in the heat exchange air duct 101, enters the heat exchange air duct 101 from the return air opening 102 of the heat exchange air duct 101, exchanges heat with the indoor heat exchanger 12 in the heat exchange air duct 101, and is sent to the room through the air supply opening 103, thereby adjusting the temperature of the indoor heat exchanger 12. At this time, the heating component 14 can be in an open or closed state. If the heating component 14 is in an open state, at this time, the heating component 14 radiates heat to the room through the radiation port 105, so as to heat the room under the combined action of the heat exchange channel, the radiation heating chamber 104, and the heating component 14.

[0042] For another example, when the radiation air deflector 15 is opened, the heat exchange air duct 101 communicates with the radiation heating chamber 104. During the operation of the air flow driving member 13, the air flow in the heat exchange air duct 101 can circulate in the heat exchange air duct 101 and enter the radiation heating chamber 104. Among them, when the air supply opening 103 of the heat exchange air duct 101 is opened, the air flow can enter the heat exchange air duct 101 from the air return opening 102. After exchanging heat with the indoor heat exchanger 12 in the heat exchange air duct 101, a part of the air flow can be sent to the room through the air supply opening 103, and the other part of the air flow can enter the radiation heating chamber 104 and be sent to the room through the radiation opening 105. At this time, if the heating component 14 is in the open state, the heating component 14 will heat the air flow flowing through the radiation heating chamber 104, so as to heat the room through the combined action of the heat exchange channel, the radiation heating chamber 104, and the heating component 14; when the air supply opening 103 of the heat exchange air duct 101 is closed, the air flow can enter the heat exchange air duct 101 from the air return opening 102. After exchanging heat with the indoor heat exchanger 12 in the heat exchange air duct 101, since the air supply opening 103 is closed, the air flow can enter the radiation heating chamber 104 and be sent to the room through the radiation opening 105. At this time, if the heating component 14 is in the open state, the heating component 14 will heat the air flow flowing through the radiation heating chamber 104, so as to heat the room through the combined action of the heat exchange channel, the radiation heating chamber 104, and the heating component 14.

[0043] In addition, a proportional adjustment structure can be provided in the present invention. Through the proportional adjustment structure, the proportion of the air flow entering the radiation heating chamber 104 and being sent to the air supply opening 103 in the air duct can be adjusted, so as to be adjusted according to actual needs. Optionally, the radiation air deflector 15 in the present invention can be configured as such a proportional adjustment structure. For example, part of the air flow sent into the heat exchange air duct 101 from the air return opening 102 is sent out through the air supply opening 103 by the radiation air deflector 15, and the other part of the air flow enters the radiation heating chamber 104 and is sent out from the radiation opening 105. At this time, through the adjustment of the radiation air deflector 15, the proportion of the air flow sent out from the air supply opening 103 and the air flow sent out from the radiation opening 105 can be adjusted, so as to further facilitate the adjustment of the indoor heat exchanger 12.

[0044] Optionally, the radiation air deflector 15 is configured to be rotatable between an open position and a closed position, and the radiation air deflector 15 is inclined toward the ventilation opening 106 relative to the air outlet direction of the heat exchange air duct 101 in the open position. The opening and closing of the radiation air deflector 15 can be realized by rotation, which simplifies the control of the radiation air deflector 15. In addition, when the radiation air deflector 15 is opened, the radiation air deflector 15 will have a guiding effect. When the air flow in the heat exchange channel passes through the radiation air deflector 15, it will flow toward the radiation heating chamber 104 under the guiding effect of the radiation air deflector 15, so that more air flow can be introduced into the radiation heating chamber 104, thereby improving the heating effect of the heating component 14.

[0045] Among them, the rotation center axis of the radiation air deflector 15 is adjacent to the downstream side of the ventilation opening 106. During the rotation of the re-radiation air deflector 15, when the radiation air deflector 15 is in the open position, it will be inclined towards the ventilation opening 106 in the air outlet direction of the heat exchange channel. Among them, a predetermined distance is spaced between the rotation center axis and the edge of the radiation air deflector 15, and a groove can be provided on the downstream side of the ventilation opening 106. In this way, during the rotation of the radiation air deflector 15, the groove will provide a space for the radiation air deflector 15 to facilitate the smooth rotation of the radiation air deflector 15. Among them, the inner surface of the groove can be set to an arc shape adapted to the shape of the radiation air deflector 15, which can facilitate the relative sealing between the radiation air deflector 15 and the groove and improve the air guiding effect of the radiation air deflector 15 on the air flow.

[0046] Optionally, when the radiation air deflector 15 is in the open position, in the cross-section of the indoor unit 100 of the air conditioner: the axis of the heating component 14 and the upstream side of the ventilation opening 106 are located on the first straight line L1, and one end of the radiation air deflector 15 extends out of the first straight line L1 and has a first distance B from the first straight line L1. At this time, one end of the radiation air deflector 15 can block the upstream side of the ventilation opening 106.

[0047] Optionally, when the radiation air deflector 15 is in the open position, in the cross-section of the indoor unit 100 of the air conditioner: the axis of the heating component 14 and the downstream side of the ventilation opening 106 are located on the second straight line L2, and the other end of the radiation air deflector 15 extends out of the second straight line L2 and has a second distance C from the second straight line L2. At this time, the other end of the radiation air deflector 15 can block the downstream side of the ventilation opening 106. Through the blocking effect of the radiation air deflector 15, light leakage from the ventilation opening can be reduced or avoided.

[0048] Among them, the upstream side and the downstream side of the ventilation opening 106 are relative to the air outlet direction in the heat exchange air duct 101. During the air flow process in the heat exchange air duct 101, the air flow will first pass through the upstream side of the ventilation opening 106 and then through the downstream side of the ventilation opening 106.

[0049] Through the blocking effect of the radiation air deflector 15, if the heat radiated by the heating component 14 passes through the ventilation opening 106, it will be blocked by the radiation air deflector 15. Therefore, the heat of the heating component 14 will not be directly radiated to the duct wall of the heat exchange air duct 101. Thus, it is possible to reduce or avoid the heat radiated by the heating component 14 from directly acting on the inside of the heat exchange air duct 101, reduce the temperature rise of the wall surface in the heat exchange air duct 101, avoid the plastic material in the indoor unit 100 of the air conditioner from being easily aged due to too high temperature, extend the service life of the indoor unit 100 of the air conditioner, extend the usage period of the indoor unit 100 of the air conditioner, and reduce the maintenance cost of the indoor unit 100 of the air conditioner.

[0050] Furthermore, both the first spacing B and the second spacing C are in the range of 3 mm to 10 mm. For example, the first spacing B and the second spacing C are set to 3 mm, 5 mm, 7 mm, 10 mm, etc. Thereby, the light-shielding effect of the radiation air deflector 15 on the ventilation opening 106 can be further improved. Specifically, generally, as long as there are the first spacing B and the second spacing C, the light passing through the ventilation opening 106 can be blocked by the radiation air deflector 15. However, in the actual production process, due to reasons such as insufficient assembly accuracy, the assembly errors may accumulate. When the first spacing B and the second spacing C are too small, the insufficient assembly accuracy will cause light to leak out from the radiation air deflector 15, thereby weakening the light-shielding effect of the radiation air deflector 15. Therefore, by setting the first spacing B and the second spacing C to be greater than 3 mm, the light leakage prevention effect of the radiation air deflector 15 can be improved. In addition, when the first spacing B and the second spacing C are too large, the space occupied by the radiation air deflector 15 is too large, which easily leads to the radiation air deflector 15 occupying too much space. Therefore, in the present invention, the upper limits of the first spacing B and the second spacing C are restricted. By setting the first spacing B and the second spacing C in the range of 3 mm to 10 mm, the light leakage prevention performance of the radiation air deflector 15 can be effectively improved, and moreover, the ineffective space occupied by the radiation air deflector 15 can be reduced, effectively improving the performance of the air conditioner indoor unit.

[0051] Of course, in some cases (such as high assembly accuracy, the total size of the air conditioner indoor unit is large enough, etc.), the first spacing B and the second spacing C in the present invention can also be set to be less than 3 mm (such as 1 mm) or greater than 10 mm (such as 15 mm), and moreover, the first spacing B and the second spacing C can be set to be the same or different.

[0052] Optionally, the inner wall surface of the heat exchange air duct 101 is provided with a recess 107. The recess 107 is located upstream of the ventilation opening 106. When the radiation air deflector 15 is in the closed position, it is embedded in the recess 107 and the surface of the radiation air deflector 15 is flush with the inner wall surface of the heat exchange air duct 101. At this time, when the radiation air deflector 15 is closed, the end of the radiation air deflector 15 is embedded in the recess 107, and the radiation air deflector 15 is generally flush with the inner wall surface of the heat exchange air duct 101. In this way, the obstruction of the radiation air deflector 15 to the air flow can be reduced or avoided, the air flow in the heat exchange air duct 101 can pass more smoothly, the stability of the air flow flowing in the heat exchange air duct 101 can be improved, and the air supply volume can be increased.

[0053] Among them, the radiation air deflector 15 being flush with the inner wall surface of the heat exchange air duct 101 may include: the radiation air deflector 15 and the inner wall surface of the heat exchange air duct 101 being on the same plane or the same curved surface; or the thickness of the end of the radiation air deflector 15 being substantially the same as the depth of the recess 107. Among them, due to reasons such as processing accuracy, the radiation air deflector 15 may not be completely flush with the inner wall surface of the heat exchange air duct 101 in the closed position, and in the case where the radiation air deflector 15 is not completely flush with the inner wall surface of the heat exchange air duct 101 due to reasons such as processing errors, it also falls within the scope to be protected by this application.

[0054] In some embodiments of the present invention, the air flow driving member 13 is a cross-flow fan. Among them, in the air outlet section of the heat exchange air duct 101, the air volume at the air duct side wall connected to the volute tongue is small, while relatively speaking, the air volume at the air duct wall opposite to the volute tongue is large. Therefore, the present invention can set the ventilation opening 106 on the air duct wall opposite to the volute tongue in the air outlet section of the heat exchange air duct 101. In this way, during use, the air flow in the heat exchange air duct 101 can more easily enter the radiation heating cavity 104 through the ventilation opening 106, thereby increasing the air volume of the air sent into the radiation heating cavity 104 and improving the performance of the air conditioner.

[0055] Optionally, the housing 11 includes a plastic outer shell 111 and a reflector 112. By providing the plastic outer shell 111, the weight and cost of the indoor unit 100 of the air conditioner can be reduced. The reflector 112 is connected to the bottom of the plastic outer shell 111. A radiation heating cavity 104 is formed inside the reflector 112, and the reflector 112 is configured to be suitable for reflecting the heat of the heating component and radiating it out of the housing 11 from the radiation opening 105. Among them, the minimum distance A between the reflector 112 and the plastic outer shell 111 is not less than 3 millimeters. By separating the plastic outer shell 111 from the reflector 112, it is possible to prevent the high temperature on the reflector 112 from affecting the plastic outer shell 111, thereby avoiding the problem that the plastic outer shell 111 is prone to aging due to high temperature, improving the stability of the indoor unit 100 of the air conditioner, and extending the service life of the indoor unit 100 of the air conditioner.

[0056] In the indoor unit 100 of the air conditioner, the air outlet 103 is used to send air into the room. Therefore, the installation position of the air outlet 103 is generally at a position where it is easier to adjust the indoor environmental temperature. Optionally, in the present invention, the radiation opening 105 is arranged adjacent to the air outlet 103, so that the heat radiated by the heating component 14 can be more easily transported in a predetermined direction, thereby improving the adjustment effect of the heating component 14 on the indoor environmental temperature.

[0057] Optionally, during use, the heat radiated by the heating component 14 may generate static electricity or the like. Therefore, in the present invention, the radiation heating cavity 104 is provided at the bottom of the housing 11, and the radiation port 105 is opened downward. In this way, the heat radiated outward by the heating component 14 will be sent below the air conditioner indoor unit 100, thereby avoiding the heating component 14 from directly radiating heat to the user or the user, and effectively improving the comfort of the air conditioner indoor unit 100.

[0058] Optionally, a protective net 113 is provided at the radiation port 105, and the protective net 113 covers the radiation port 105. By providing the protective net 113, the radiation heating cavity 104 and the heating component 14 located in the radiation heating cavity 104 can be protected. Moreover, due to the blocking of the protective net 113, people are prevented from directly touching the heating component 14, and other objects are also prevented from directly touching the heating component 14, avoiding problems such as scalding, and effectively improving the safety and stability of the air conditioner indoor unit 100.

[0059] Optionally, the heating component 14 includes a heating tube and a radiator, and the radiator is connected to the heating tube. Thereby, the contact area between the heating component 14 and the air flow can be increased, so as to facilitate faster heat exchange between the air flow and the heating component 14, thereby improving the heat exchange efficiency between the air and the heating component 14, and avoiding the heating component 14 from getting too hot, or the heat generated by the heating component 14 not being sent out in time.

[0060] Especially when there is an air flow passing through the heating component 14, the setting of the radiator can greatly improve the air flow, thereby effectively improving the heating efficiency of the heating component 14 and quickly increasing the heat delivered to the indoor environment.

[0061] Combined with Figures 1 to 4, the air conditioner indoor unit 100 of the present invention uses a heating component 14 (such as a heating structure including a radiant electric heating tube) to solve the problem of slow heating in the heating mode, and places the heating component 14 near the air outlet of the air conditioner. In addition, the radiant heating cavity 104 can be communicated with the heat exchange air duct 101, and by blowing air through the main air duct of the air conditioner, the temperature rise inside the radiation device can be reduced. The reliability of the product is improved. The air conditioner indoor unit 100 is provided with a radiant heating cavity 104, and a heating component 14 and a reflector 112 are arranged inside. The reflector 112 emits the heat of the heating component 14 outside the radiant heating cavity 104, so as to realize radiant heating of the room. The radiant heating cavity 104 and the heat exchange air duct 101 are communicated through a connection channel (vent 106), and both ends of the connection channel are respectively connected to the heat exchange air duct 101 and the radiant heating cavity 104; a switch door is provided to open and close the heat exchange air duct 101. When the heat exchange air duct 101 is opened, it can be formed into a form that guides the air flow in the heat exchange air duct 101 to enter the radiant heating cavity 104. The connection channel and the positions where the radiant heat can reach are strengthened to prevent the radiant heat from damaging the housing 11. A heat dissipation device is arranged in the radiant heating cavity 104. The heat dissipation device can absorb the radiant heat and send the heat to the room when the air flow passes through.

[0062] Combined with the attached drawings, Figure 1 For this technical solution, the air conditioner indoor unit 100 has a heat exchange air duct 101 and a radiant heating cavity 104. Among them, the heat exchange air duct 101 is the main air duct of the air conditioner and has an air outlet 103 for the air conditioner indoor unit 100 to supply air. The radiant heating cavity 104 is a radiant heating air duct, mainly dissipates heat in the radiant heating cavity 104 and blows out hot air;

[0063] Figure 2 When the air conditioner just starts heating and the heat exchange system is in the stage of blowing cold air, the radiant heating device can be turned on at this time. The heating component 14 works to generate radiant energy, generate heat for surrounding objects and products, and at the same time the radiant air deflector 15 is opened, and the fan runs to blow air through the radiant heating cavity 104. It can cool the internal structural parts of the radiation device, and at the same time blow the hot air out of the air outlet through heat convection to heat the room.

[0064] Figure 3 When the air conditioner is in the heating state and the heat exchange system has completed heating up and can blow hot air, the radiant heating can be turned off at this time. The air duct conversion radiant air deflector 15 fits against the wall of the radiant heating cavity 104, and the hot air is blown out from the air outlet of the heat exchange air duct 101.

[0065] Figure 4It is a partial enlarged view of the radiation device. The reflector 112 is made of sheet metal material and can withstand high temperatures of over two hundred degrees without deformation. The sheet metal temperature of the distance from the heating component 14 is the highest, and the minimum distance A between the surrounding fixed plastic parts and the sheet metal is preferably A≥3mm. To ensure the deformation of the plastic parts and the overall dimensions of the machine, it is preferably 10≥A≥5mm. The connection lines of the heating component 14 with the upstream side and the downstream side of the ventilation opening 106 of the radiation heating cavity 104, and the distances B and C between the two most distal ends when the radiation air guide plate 15 is opened at the maximum angle. Preferably, B≥0mm and C≥0mm. Considering the manufacturing and assembly deviations, to prevent the radiation rays from passing over the radiation air guide plate 15 and directly irradiating other high-temperature-intolerant plastic parts, resulting in deformation problems, 10≥B≥3mm and 10≥C≥3mm.

[0066] Relatively speaking, when the air conditioner in the related art just starts the heating mode, there will be a cold air prevention stage. At this time, to prevent the cold air inside the air conditioner from blowing out, the fan stops running, and the fan runs again after the heat exchange system pipeline warms up to realize heating and air supply. In the cold air prevention stage, by adding a radiation heating device, radiation is the fastest way in heat transfer, which can quickly heat, heat the object outside the radiation opening, and make the human body feel warm quickly. Add a radiation heating device, and the device is connected to the main air duct of the air conditioner to realize rapid heating. According to experimental tests, after the air conditioner is turned on for heating operation, with the radiation device, the bare skin can obviously feel the warm feeling within 40S. The user experience is much better than that of the original air conditioner.

[0067] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0068] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. An air conditioner indoor unit, characterized in that, Comprising: A housing, within which there is a heat exchange air duct and a radiation heating chamber. The heat exchange air duct has an air return opening and an air supply opening, and the radiation heating chamber has a radiation opening; An indoor heat exchanger, which is arranged within the heat exchange air duct; An air flow driving member, which is used to drive air flow to flow from the air return opening to the air supply opening, and the air flow driving member is a cross-flow fan; A heating assembly, which is arranged within the radiation heating chamber, and the heating assembly is configured to be independently adapted to radiate heat from the radiation opening to the outside of the housing. In this independent working state, the radiation heating chamber where the heating assembly is located is completely separated from the heat exchange air duct; The radiation heating chamber has a ventilation opening, which is adapted to communicate with the heat exchange air duct. A radiation air deflector is provided at the ventilation opening, and the radiation air deflector is movable between an open position and a closed position. The radiation air deflector opens the ventilation opening in the open position to communicate the radiation heating chamber with the heat exchange air duct, and the radiation air deflector closes the ventilation opening in the closed position to separate the radiation heating chamber from the heat exchange air duct. The radiation air deflector is configured to be rotatable between the open position and the closed position, and the radiation air deflector inclines towards the ventilation opening relative to the air outlet direction of the heat exchange air duct in the open position.

2. The air conditioner indoor unit according to claim 1, characterized in that, When the radiation air deflector is in the open position, in the cross-section of the indoor unit of the air conditioner: The axis of the heating assembly and the upstream side of the ventilation opening are located on a first straight line, and one end of the radiation air deflector extends out of the first straight line and has a first distance from the first straight line; The axis of the heating assembly and the downstream side of the ventilation opening are located on a second straight line, and the other end of the radiation air deflector extends out of the second straight line and has a second distance from the second straight line.

3. The air conditioner indoor unit according to claim 2, characterized in that, Both the first distance and the second distance are in the range of 3 millimeters to 10 millimeters.

4. The air conditioner indoor unit according to claim 1, characterized in that, A recess is provided on the inner wall surface of the heat exchange air duct, and the recess is located upstream of the ventilation opening. The radiation air deflector is embedded in the recess in the closed position and the surface of the radiation air deflector is flush with the inner wall surface of the heat exchange air duct.

5. The indoor air conditioner according to claim 1, characterized in that, The ventilation opening is provided on the air duct wall opposite to the volute tongue in the air outlet section of the heat exchange air duct.

6. The air conditioner indoor unit according to any one of claims 1-5, characterized in that, The housing includes: A plastic outer shell; A reflector, which is connected to the bottom of the plastic outer shell. The radiation heating chamber is formed within the reflector, and the reflector is configured to be adapted to reflect the heat of the heating assembly and radiate it to the outside of the housing from the radiation opening, wherein the minimum distance A between the reflector and the plastic outer shell is not less than 3 millimeters.

7. The indoor unit of the air conditioner according to any one of claims 1 - 5, characterized in that The radiation opening is arranged adjacent to the air supply opening; and / or The radiation heating chamber is arranged at the bottom of the housing, and the radiation opening is open downward.

8. The air conditioner indoor unit according to any one of claims 1-5, characterized in that, A protective net is provided at the radiation opening, and the protective net covers the radiation opening.

9. The air conditioner indoor unit according to claim 1, wherein The heating assembly includes: A heating tube; A radiator, which is connected to the heating tube.

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