CN211953032U - Air conditioner indoor unit and air conditioner adopting same - Google Patents
Air conditioner indoor unit and air conditioner adopting same Download PDFInfo
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- CN211953032U CN211953032U CN202020375893.9U CN202020375893U CN211953032U CN 211953032 U CN211953032 U CN 211953032U CN 202020375893 U CN202020375893 U CN 202020375893U CN 211953032 U CN211953032 U CN 211953032U
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Abstract
The utility model relates to an air-conditioning indoor unit and an air conditioner adopting the same.A electric auxiliary heating device is arranged in the indoor unit, and one section or a plurality of sections of bending structures are formed on the surface of the air flowing through the indoor unit, so that the heat exchange area is increased; when the indoor unit operates in a heating mode, the heating quantity of the electric auxiliary heating device is adjusted according to the indoor environment temperature and the rotating speed of an indoor fan, so that the rapid heating is realized; when the indoor unit operates in the defrosting mode, the electric auxiliary heating device and the indoor fan work in a matched mode, the phenomenon that the electric auxiliary heating device is dried when the indoor unit of the air conditioner operates in the heating mode can be avoided, and the indoor unit can continuously supply heat during the defrosting period.
Description
Technical Field
The utility model relates to an air conditioning equipment technical field especially relates to an indoor set of air conditioner and adopt its air conditioner.
Background
When the air conditioner is in heating operation in winter, the surface temperature of the evaporator can reach below zero, the surface of the evaporator can be frosted, the air flow is blocked due to a thick frost layer, and the heating capacity of the air conditioner is affected, so that the air conditioner needs defrosting treatment after long-time heating operation. The conventional defrosting mode in the existing air conditioner is characterized in that the flow direction of a refrigerant is switched through the four-way valve, the inner fan is stopped, the electric auxiliary heating PTC is closed, the heat exchanger of the indoor unit cannot continuously supply heat for a room, the temperature of the room is reduced quickly, the thermal comfort of the room is reduced, and when the ordinary air conditioner operates in a heating mode, the ventilation quantity of the electric auxiliary heating PTC is less, and the phenomenon of dry burning is easy to occur.
SUMMERY OF THE UTILITY MODEL
The utility model provides an air-conditioning indoor unit and an air conditioner adopting the same.A section or a plurality of sections of bending structures are formed on the surface of the air flowing through the indoor unit by arranging an electric auxiliary heating device in the indoor unit, so that the heat exchange area is increased, and the heat exchange effect is improved; when the indoor unit operates in a heating mode, the electric auxiliary heating device is matched with the indoor fan to work, so that the dry burning phenomenon of the electric auxiliary heating device can be avoided; the electric auxiliary heating device can continuously supply heat when the indoor unit runs in a heating mode and works in cooperation with the indoor fan, and is specific:
an air-conditioning indoor unit is provided with an electric auxiliary heating device, and the electric auxiliary heating device is provided with one or more sections of bending structures on the surface through which air flows.
Preferably, the plurality of bends of the electrically assisted thermal device may be continuous or discontinuous.
Preferably, the electric auxiliary heating device is serrated.
Preferably, the electric auxiliary heating device comprises an electric auxiliary heating sheet which is in a sawtooth shape.
Preferably, the electric auxiliary heating device is composed of a semiconductor heating ceramic.
Preferably, the air-conditioning indoor unit further comprises a wind sweeping blade and an indoor fan, the electric auxiliary heating device is arranged between the indoor fan and the wind sweeping blade, and the windward side of the electric auxiliary heating device is perpendicular to the airflow direction.
Preferably, the indoor unit of an air conditioner further includes a protector movably or fixedly disposed between the electric supplementary heat device and the wind-sweeping vane.
Preferably, the indoor unit of the air conditioner further comprises an indoor heat exchanger and an indoor fan, the electric auxiliary heating device is arranged between the indoor heat exchanger and the indoor fan, and the electric auxiliary heating device and the indoor heat exchanger are identical in bending shape and are arranged opposite to the indoor heat exchanger.
Preferably, the electric auxiliary heating device comprises an electric heating assembly, the electric heating assembly comprises an insulator and an electric heating body, and the electric heating body is spirally arranged on the outer side of the insulator.
The utility model also provides an air conditioner, its adoption the utility model provides an indoor unit of air conditioner.
The utility model provides an air-conditioning indoor unit and an air conditioner adopting the same.A electric auxiliary heating device is arranged in the indoor unit, and a bending structure is formed on the surface of the air flowing through the indoor unit, so that the heat exchange area is increased, and the heat exchange effect is improved; the electric auxiliary heating device is matched with the indoor fan to work when the indoor unit operates in a heating mode, so that the phenomenon of dry burning of the electric auxiliary heating device can be avoided, the indoor unit continuously supplies heat during defrosting, and the comfort level of a use object of the indoor unit is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely some embodiments of the present disclosure, and other drawings may be derived from those drawings by those of ordinary skill in the art without inventive effort.
FIG. 1 is a schematic view of an electrically assisted PTC structure in embodiment 1 of the present invention;
fig. 2 is a schematic structural view of an air conditioning indoor unit in embodiment 1 of the present invention;
fig. 3 is a schematic structural view of an air conditioning indoor unit in embodiment 1 of the present invention 2;
fig. 4 is a schematic view of the air-conditioning indoor unit in embodiment 2 of the present invention;
fig. 5 is a schematic view of an electric heating net structure in embodiment 2 of the present invention;
fig. 6 is a schematic structural view of an electric heating assembly in embodiment 2 of the present invention;
in the figure:
1-indoor heat exchanger; 2-an indoor fan; 3-electrically assisted thermal PTC; 31-electric auxiliary heating sheet; 4-a wind sweeping blade; 5-an infrared detection device; 6-a guard device; 7-an electric heating net; 71-an electrical heating assembly; 711-high temperature insulating tube; 712-electric heating wire.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and "a plurality" typically includes at least two, but does not exclude the presence of at least one.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.
The utility model provides an air-conditioning indoor unit and an air conditioner adopting the same.A electric auxiliary heating device is arranged in the indoor unit, and a bending structure is formed on the surface of the air flowing through the indoor unit, so that the heat exchange area is increased, and the heat exchange effect is improved; when the indoor unit operates in a defrosting mode, the electric auxiliary heating device and the indoor fan work in a matching mode, so that the problem of dry burning of the electric auxiliary heating device when the indoor unit of the air conditioner operates in a heating mode in the prior art can be solved; the indoor unit can achieve continuous heating during defrosting.
Example 1:
as shown in fig. 1 to 3, the present embodiment provides an indoor unit of an air conditioner, which belongs to an indoor part of an air conditioning system, that is, the indoor unit of the air conditioner is installed indoors, and can adjust the indoor ambient temperature. The indoor unit of the air conditioner is internally provided with an indoor fan 2 and an electric auxiliary heating device, wherein one or more sections of bent structures are formed on the surface of the electric auxiliary heating device through which air flows so as to increase the heat exchange area, specifically, a radiator in the electric auxiliary heating device can be bent into a zigzag or corrugated shape from a flat plate shape, or a plurality of flat plate-shaped radiators are arranged into a zigzag space structure, so that the contact area between the air and the heat dissipation surface of the electric auxiliary heating device can be increased, the heat exchange is facilitated, the more the bent structures are, and the better the heat exchange effect is.
Preferably, the multi-section bending of the electric auxiliary heating device can be continuous or discontinuous, and in the embodiment, the electric auxiliary heating device is preferably arranged into a multi-section continuous bending structure, so that the bending structure is increased, the contact area between the air flow and the surface of the electric auxiliary heating device is further increased, and the heat exchange effect is enhanced.
Preferably, the electric auxiliary heating device is serrated.
Preferably, the electric auxiliary heating device comprises an electric auxiliary heating sheet which is in a sawtooth shape.
The electric auxiliary heating device in the embodiment is the electric auxiliary heating PTC3, and can exchange heat for the air flow passing through the electric auxiliary heating PTC3 comprises electric auxiliary heating pieces 31, the electric auxiliary heating pieces 31 are arranged into a zigzag space structure, and the electric auxiliary heating pieces 31 are in a zigzag shape, namely, the side surfaces of the electric auxiliary heating pieces 31 are in a zigzag shape, so that the side surface area of the electric auxiliary heating pieces 31 can be further increased, and the heat exchange effect of the electric auxiliary heating pieces 31 is further enhanced.
Preferably, the electric auxiliary heating device is made of semiconductor heating ceramic, that is, the electric auxiliary heating PTC3 in this embodiment is a PTC with semiconductor heating ceramic, and the surface temperature of the electric auxiliary heating device is much lower than that of the electric heating pipe type electric auxiliary heating device, so that the safety of the indoor unit during abnormal operation can be greatly improved.
Preferably, the electric auxiliary heating device further comprises a temperature detection element, and when the temperature detection element detects that the surface temperature of the electric auxiliary heating device is higher than a first preset temperature value, the electric auxiliary heating device is automatically powered off, wherein the first preset temperature value is preferably 200-240 ℃, in the embodiment, the first preset temperature value is further preferably 220 ℃, so that a dry burning phenomenon caused by the continuous operation of the electric auxiliary heating device after the indoor fan 2 is shut down due to a fault is avoided, or the deformation of blades of the indoor fan 2 and a shell of the indoor unit caused by the overhigh temperature of the electric auxiliary heating device is prevented, and the safety performance of the indoor unit is improved.
Preferably, the air-conditioning indoor unit further comprises a wind sweeping blade 4 and an indoor fan 2, the electric auxiliary heating device is arranged between the indoor fan 2 and the wind sweeping blade 4, and the windward side of the electric auxiliary heating device is perpendicular to the airflow direction.
As shown in fig. 2, the indoor unit of an air conditioner in this embodiment further includes a casing, an air inlet is formed at an upper portion of the casing, an air outlet is formed at a lower portion of the casing, an air duct is formed between the air inlet and the air outlet, an indoor heat exchanger 1 and an indoor fan 2 are sequentially disposed in an air duct area through which air flows, and the indoor fan 2 in this embodiment is a cross-flow fan; the air sweeping blades 4 are arranged at the air outlet of the indoor unit of the air conditioner and are responsible for the distribution of the air outlet direction; the electric auxiliary heating device is arranged between the indoor fan 2 and the wind sweeping blade 4 and is close to the air outlet in the air channel, the air speed is large, the air quantity is large and concentrated, the heat exchange performance of the electric auxiliary heating device on air flow can be fully exerted, in addition, the windward side of the electric auxiliary heating device is perpendicular to the air flow direction, the air flow can be fully released from the surface of the electric auxiliary heating device, and the heat exchange effect is enhanced.
The air flow is guided to a designated position by the air sweeping blades 4 and the air guide plate.
Preferably, the air-conditioning indoor unit further comprises an infrared detection device 5, the infrared detection device 5 is arranged on the lower side of the shell of the air-conditioning indoor unit, specifically, the infrared detection device 5 is arranged on the upper edge of an air outlet formed in the shell, so that the position of an air-conditioning user object can be accurately detected, and the function of accurately supplying air to the user object or avoiding the air supply of the user object to the indoor unit can be realized.
Preferably, the air conditioning indoor unit further comprises a guard 6, the guard 6 being movably or fixedly disposed between the electric auxiliary heating device and the sweeping blade 4.
As shown in fig. 3, the protection device 6 is a protection net, and preferably, the protection net is fixedly disposed between the electric auxiliary heating device and the wind sweeping blade 4, so as to effectively prevent the user from touching the high-temperature electric auxiliary heating device, and prevent the user from being scalded by the electric auxiliary heating device.
As shown in fig. 2, it is further preferable that the protection device 6 is movably disposed between the electric auxiliary heating device and the wind sweeping blade 4, and at the lower edge of the air outlet, specifically, the protection device 6 is drivingly connected to the driving device, when the infrared detection device 5 detects that the air conditioner user is close to the air outlet of the indoor unit, the driving device drives the protection device 6 to rise upward from the lower edge of the air outlet and block the air conditioner user in front of the electric auxiliary heating device, so as to prevent the air conditioner user from being scalded by touching the high-temperature electric auxiliary heating device by mistake, and improve the safety of the indoor unit, wherein the driving device is a stepping motor.
The indoor unit of the air conditioner further comprises a throttling device, wherein the throttling device is an electronic expansion valve and is used for adjusting the heat degree of the refrigerant at the outlet of the indoor heat exchanger 2.
The air-conditioning indoor unit further comprises a return air temperature sensing device, wherein the return air temperature sensing device in the embodiment is a return air temperature sensing bag and can detect the temperature of the environment where the air-conditioning indoor unit is located.
The air-conditioning indoor unit further comprises a control module, and the control module can control the operation mode and the operation parameters of the air-conditioning indoor unit. Specifically, when the indoor set operation mode of heating, control module control indoor fan 2 and electric auxiliary heating device all are in the state of opening to adjust the calorific capacity of electric auxiliary heating device according to indoor set present ambient temperature and indoor fan 2's rotational speed, be favorable to maintaining indoor ambient temperature, and make great amount of wind through electric auxiliary heating device, avoid letting electric auxiliary heating device dry combustion method, the mode that control module adjustment electric auxiliary heating device calorific capacity in this embodiment does: the current through the electric auxiliary heating device is varied. In addition, when the heating mode is started at a low temperature, the electric auxiliary heating device and the air exchange heat to send out hot air to the environment where the indoor unit is located, so that the ambient temperature is quickly improved, and the comfort of a user is improved.
When the air conditioner carries out hot defrosting, the rotating speed of an indoor fan is reduced, the opening degree of an electronic expansion valve is increased, and a high-temperature refrigerant passes through the electronic expansion valve quickly after passing through an evaporator and then is defrosted in a condenser. Therefore, when the indoor unit operates in the defrosting mode, the control module controls the indoor fan 2 and the electric auxiliary heating device to be in the open state, the rotating speed of the indoor fan 2 is reduced, the heat loss of the refrigerant can be reduced, a certain amount of air still passes through the electric auxiliary heating device in the indoor unit, the dry burning phenomenon of the electric auxiliary heating device is avoided, and continuous heat supply of the indoor unit in the defrosting mode can be realized.
The embodiment provides an air-conditioning indoor unit, wherein an electric auxiliary heating device is arranged in the air-conditioning indoor unit, and an electric auxiliary heating sheet of the electric auxiliary heating device is in a zigzag shape, so that the heat exchange area of the electric auxiliary heating device is further increased, and the heat exchange effect is enhanced; when the indoor unit operates in a heating mode, the heating quantity of the electric auxiliary heating device is adjusted according to the indoor environment temperature and the rotating speed of an indoor fan, so that the rapid heating is realized; when the indoor unit operates in the defrosting mode, the rotating speed of the indoor fan is reduced, so that a certain amount of air in the indoor unit passes through the electric auxiliary heating device, the phenomenon of dry burning of the electric auxiliary heating device is avoided, heat can be continuously supplied to the indoor, and the comfort of a user is improved.
Example 2:
as shown in fig. 4 to 6, the present embodiment provides another air conditioning indoor unit, and compared to embodiment 1, the present embodiment has the following differences:
as shown in fig. 5 and 6, preferably, the electric auxiliary heating device in the present embodiment is disposed between the indoor heat exchanger 1 and the indoor fan 2, and the electric auxiliary heating device and the indoor heat exchanger 1 have the same bending shape and are disposed opposite to the indoor heat exchanger 1. Specifically, the electric auxiliary heating device in this embodiment is the electric heating net 7, and the structure of this electric heating net 7 is the bending type, and the bending type of electric heating net 7 is the same with the shape of buckling of indoor heat exchanger 1, because indoor heat exchanger 1 is the three-folding type in this embodiment, consequently, electric heating net 7 in this embodiment is also the three-folding type for electric heating net 7 can be relative indoor heat exchanger 1 parallel arrangement, reduces the space that electric heating net 7 occupy, makes the structure of indoor set compacter.
Preferably, the electric auxiliary heating device comprises an electric heating assembly 71, that is, the electric heating net 7 comprises the electric heating assembly 71, a plurality of electric heating assemblies 71 are arranged in parallel in the electric heating net 7 of the embodiment, each electric heating assembly 71 comprises an insulator and an electric heater, and the electric heaters are spirally arranged outside the insulators, so that the contact area between each electric heater and air is increased, and the heat exchange effect of the electric auxiliary heating device is greatly enhanced.
Further preferably, the insulator is a high-temperature insulating tube 711, the electric heater is an electric heating wire 712, and the electric heating wire 712 is spirally arranged outside the high-temperature insulating tube 711, so that the contact area between the electric heating wire 712 and air is increased, and heat exchange is facilitated.
After air enters the indoor unit from the air inlet, the air exchanges heat through the indoor heat exchanger 1, is heated through the electric heating net 7, passes through the indoor fan 2, and is guided to a designated position by the air sweeping blades 4 and the air deflectors.
Preferably, the electric heating net 7 is made of a material with a high waterproof grade, so that the electric heating net 7 can be prevented from being damaged due to the fact that condensed water drops onto the electric heating net 7 when the indoor unit operates in a refrigeration mode.
As shown in fig. 4, in the present embodiment, since the electric auxiliary heating device is installed between the indoor heat exchanger 1 and the indoor fan 2, and the position is hidden, and the user of the indoor unit cannot easily touch the electric auxiliary heating device, the indoor unit of the present embodiment does not need to be provided with the protection device 6. In this embodiment, it is preferable that the infrared detection device 5 is not provided, and the structure of the indoor unit of the air conditioner can be simplified.
The rest of the indoor unit of this embodiment is the same as that of embodiment 1, and will not be described herein again.
The embodiment provides an indoor unit of an air conditioner, wherein an electric heating net with a bending structure is arranged in the indoor unit, and the electric heating net comprises a high-temperature insulating pipe and an electric heating wire spirally wound on the outer side of the high-temperature insulating pipe, so that the heat exchange area of the electric heating net is increased, and the heat exchange effect is enhanced; when the indoor unit operates in a heating mode, rapid temperature rise can be realized; when the indoor set operation defrosting mode, can avoid the electric auxiliary heating device dry combustion method phenomenon, and can last to indoor heat supply, promoted the travelling comfort of use object.
Example 3:
the embodiment provides an air conditioner, and by adopting the air conditioner indoor unit provided in embodiment 1 or embodiment 2, the electric auxiliary heating device has a large heat exchange area and a good heat exchange effect; when the air conditioner operates in a heating mode, the rapid temperature rise can be realized; when the defrosting mode is operated, the electric auxiliary heating device and the indoor fan work in a matched mode, so that the phenomenon of dry burning of the electric auxiliary heating device can be avoided, and heat can be continuously provided for the indoor space.
In summary, the present embodiment provides an indoor unit of an air conditioner and an air conditioner using the same, wherein an electric auxiliary heating device is disposed in the indoor unit, and one or more sections of bending structures are formed on the surface of the indoor unit through which air flows, so as to increase the heat exchange area; when the indoor unit operates in a heating mode, the heating quantity of the electric auxiliary heating device is adjusted according to the indoor environment temperature and the rotating speed of an indoor fan, so that the rapid heating is realized; when the indoor unit operates in a defrosting mode, the electric auxiliary heating device and the indoor fan work in a matched mode, the problem that the electric auxiliary heating device in the prior art is dried when the indoor unit of the air conditioner operates in a heating mode can be solved, and the problem that the indoor unit can continuously supply heat during defrosting can be solved.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. An air-conditioning indoor unit is provided with an electric auxiliary heating device, and is characterized in that the electric auxiliary heating device is provided with one or more sections of bending structures on the surface through which air flows.
2. The indoor unit of air conditioner as claimed in claim 1, wherein the multi-stage bent structure of the electric auxiliary heating device may be continuous or discontinuous.
3. The indoor unit of claim 2, wherein the electric supplementary heating means is serrated.
4. The indoor unit of an air conditioner according to claim 3, wherein the electric supplementary heat means includes electric supplementary heat pieces, and the electric supplementary heat pieces are zigzag-shaped.
5. The indoor unit of air conditioner according to claim 4, wherein said electric auxiliary heating means is composed of a semiconductor heating ceramic.
6. The indoor unit of claim 5, further comprising a wind sweeping blade and an indoor fan, wherein the electric auxiliary heating device is disposed between the indoor fan and the wind sweeping blade, and a windward side of the electric auxiliary heating device is perpendicular to an airflow direction.
7. The indoor unit of claim 6, further comprising a guard device movably or fixedly disposed between the electric auxiliary heating device and the sweeping blade.
8. The indoor unit of claim 2, further comprising an indoor heat exchanger and an indoor fan, wherein the electric auxiliary heating device is disposed between the indoor heat exchanger and the indoor fan, and the electric auxiliary heating device and the indoor heat exchanger have the same bent shape and are disposed opposite to the indoor heat exchanger.
9. The indoor unit of an air conditioner according to claim 8, wherein the electric auxiliary heating means comprises an electric heating unit including an insulator and an electric heater spirally disposed outside the insulator.
10. An air conditioner characterized in that the air conditioner employs the indoor unit of the air conditioner as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020375893.9U CN211953032U (en) | 2020-03-23 | 2020-03-23 | Air conditioner indoor unit and air conditioner adopting same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020375893.9U CN211953032U (en) | 2020-03-23 | 2020-03-23 | Air conditioner indoor unit and air conditioner adopting same |
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| CN211953032U true CN211953032U (en) | 2020-11-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114674071A (en) * | 2020-12-24 | 2022-06-28 | 广东美的制冷设备有限公司 | Electric heater control method and device, air conditioner and storage medium |
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2020
- 2020-03-23 CN CN202020375893.9U patent/CN211953032U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114674071A (en) * | 2020-12-24 | 2022-06-28 | 广东美的制冷设备有限公司 | Electric heater control method and device, air conditioner and storage medium |
| CN114674071B (en) * | 2020-12-24 | 2024-01-23 | 广东美的制冷设备有限公司 | Electric heater control method and device, air conditioner and storage medium |
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