CN219083270U - Indoor unit of air conditioner - Google Patents
Indoor unit of air conditioner Download PDFInfo
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- CN219083270U CN219083270U CN202320003119.9U CN202320003119U CN219083270U CN 219083270 U CN219083270 U CN 219083270U CN 202320003119 U CN202320003119 U CN 202320003119U CN 219083270 U CN219083270 U CN 219083270U
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- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Abstract
The utility model relates to the technical field of refrigeration engineering, in particular to an air conditioner indoor unit. The electric heating device is arranged on the air outlet side of the cross-flow fan and is positioned on the rear side of the air guide component. When the air conditioner is used for refrigerating, the electric heating device is positioned at the air outlet side of the cross-flow fan, the cold radiation effect of the heat exchanger at the air suction side is smaller, the temperature of the electric heating device is higher than the temperature of the heat exchanger and is close to the room temperature, and the temperature of air at the air outlet side is lower because the air is condensed by the heat exchanger and is lower than the temperature of the electric heating device, so that the condition that the electric heating device generates condensed water under the refrigeration in summer is avoided. The electric heating device has two states. When the air conditioner is in the first state, the air conditioner is suitable for heating in winter, and the electric heating device is positioned in the middle of the air outlet side air duct and can heat the air in the air duct; when the air conditioner is in the second state, the air conditioner is suitable for refrigerating in summer, and the electric heating device is positioned on one side of the air outlet side air duct, so that the influence of the electric heating device on the air outlet quantity and the air speed can be reduced to a large extent.
Description
Technical Field
The utility model relates to the technical field of refrigeration engineering, in particular to an air conditioner indoor unit.
Background
In the prior art, because the starting time of the air conditioning system is longer, in the indoor heating mode in winter, the situation that the heating feedback time is longer or the temperature rise is slower may occur, so that the electric heating device is often utilized to provide the supplementary heat. The electric heating device is generally arranged near the heat exchanger of the indoor unit of the air conditioner. For example, an electrical heating device for an on-hook air conditioning indoor unit is typically mounted between a heat exchanger and a cross-flow fan.
In the use process of actual electric heating, when the air conditioner is in cold operation, indoor air passes through the air inlet of the air conditioner, and becomes cold air after heat exchange of the heat exchanger, and part of cold air can be blown out from the air outlet along with the through-flow fan after passing through the electric heating device. Because the temperature of air at the suction side is higher, the temperature is lower under the low-temperature radiation of the surrounding heat exchangers in the state that the electric heating device does not work, and condensation can be generated when cold air is encountered.
When the air conditioner is used in summer, the air conditioner is frequently started to use for refrigeration, so that more and more condensed water at the electric heating device can be caused, and when the air speed of the air conditioner is high, the condensed water on the electric heating device is directly blown out and drops into a room, so that the use experience of the air conditioner of a user is influenced. Meanwhile, condensed water exists on the electric heating device for a long time, so that metal parts of the electric heating device are possibly oxidized and corroded, the service life of the electric heating device is shortened, and certain potential safety hazards exist. The electric heating device is easy to be in a wet state for a long time, mildew is formed, and wind blown out by the air conditioner has mildew.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the utility model provides an air conditioner indoor unit capable of avoiding condensed water from adhering to an electric heating device in a summer refrigerating mode.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides an air conditioner indoor unit, which comprises an air duct, a cross-flow fan, a heat exchanger, an air guide assembly and an electric heating device, wherein the cross-flow fan is positioned in the air duct;
the electric heating device is positioned in the air duct at the air outlet side of the cross-flow fan and is positioned at the rear side of the air guide component; the electric heating device driving device is in driving connection with the electric heating device, the electric heating device comprises an electric heater, the electric heater has two states under the driving of the electric heating device driving device, and the first state is that the electric heater is positioned in the middle of an air outlet side air duct of the cross-flow fan; the second state is that the electric heater is positioned at one side of the air outlet side air channel of the cross-flow fan.
Further is: the electric heater is flat; when the electric heater is in the first state, the electric heater is perpendicular to the wind direction of the air outlet; when the electric heater is in the second state, the electric heater is positioned at the edge of the air outlet side air channel of the cross-flow fan and is parallel to the air outlet direction.
Further is: the electric heater comprises a plurality of electric heating columns which are arranged at intervals and extend along the width direction of the air conditioner indoor unit, and a plurality of radiating fins which are perpendicular to the extending direction of the electric heating columns and are arranged on the electric heating columns at intervals; the electric heater is characterized in that rotary shafts are fixedly arranged at the lower parts of two ends of the electric heater, the electric heater is rotationally connected with the air duct through the rotary shafts, the electric heater driving device is a first stepping motor, and an output shaft of the first stepping motor is fixedly connected with the rotary shafts.
Further is: the electric heater is arc-shaped, and the axis of the electric heater is coincident with the axis of the cross-flow fan; when the electric heating device is in the first state, the electric heater is positioned in the air outlet side air duct at the front lower part of the cross-flow fan; when the electric heating device is in the second state, the electric heater is positioned in the air duct at the rear lower part of the cross-flow fan.
Further is: the electric heater comprises a plurality of electric heating columns which are arranged at intervals and extend along the width direction of the air conditioner indoor unit, and a plurality of radiating fins which are perpendicular to the extending direction of the electric heating columns and are arranged on the electric heating columns at intervals; connecting rods are arranged at both ends of the electric heater; the electric heating device driving device is a second stepping motor, one end of the connecting rod is fixedly connected with the electric heater, the other end of the connecting rod is fixedly connected with a rotating shaft of the second stepping motor, and the second stepping motor is fixedly connected with the air duct.
The beneficial effects of the utility model are as follows:
the utility model provides an air conditioner indoor unit, wherein an electric heating device is arranged on the air outlet side of a cross-flow fan and is positioned on the rear side of an air guide component. When the air conditioner is in the refrigeration mode, the electric heating device is positioned at the air outlet side of the cross-flow fan, and the effect of cold radiation of the heat exchanger at the air suction side is smaller, so that the temperature of the electric heating device is higher than the temperature of the heat exchanger and is relatively close to the indoor temperature, and at the moment, the temperature of air at the air outlet side is lower because the air is condensed by the heat exchanger at the air suction side, and is lower than the temperature of the electric heating device, so that the condition that the electric heating device frequently generates condensed water in the refrigeration mode in summer is avoided.
The electric heating device has two states under the drive of the electric heating device driving device. When the air conditioner is in the first state, the air conditioner is suitable for heating in winter, and the electric heating device is positioned in the middle of the air outlet side air duct and can heat air in the air duct to play a role in compensating heat. When the air conditioner is in the second state, the air conditioner is suitable for refrigerating in summer, and the electric heating device is positioned on one side of the air outlet side air duct, so that the influence of the electric heating device on the air outlet quantity and the air speed can be reduced to a greater extent. By adopting the utility model, on one hand, the condensed water generated on the electric heating device during refrigeration in summer can be avoided, and on the other hand, the auxiliary heating function in winter is also realized.
Drawings
FIG. 1 is a schematic view showing a first state of an electric heating apparatus according to a first embodiment of the present utility model;
FIG. 2 is a schematic view showing a second state of the electric heating apparatus according to the first embodiment of the present utility model;
FIG. 3 is a front view of an electric heating device according to a first embodiment of the present utility model;
FIG. 4 is a schematic view showing a first state of an electric heating apparatus according to a second embodiment of the present utility model;
FIG. 5 is a schematic view showing a second state of an electric heating apparatus according to a second embodiment of the present utility model;
fig. 6 is a front view of an electric heating apparatus according to a second embodiment of the present utility model.
Marked in the figure as: the heat exchanger comprises a cross-flow fan 1, a heat exchanger 2, an air guide assembly 3, an electric heating device 4, an electric heater 41, an electric heating column 411, radiating fins 412, a rotating shaft 42, a connecting rod 43, a first stepping motor 5 and a second stepping motor 6.
Detailed Description
The following description of the specific embodiments of the present utility model will be given with reference to the accompanying drawings, so as to further understand the concept of the present utility model, the technical problems to be solved, the technical features constituting the technical solutions, and the technical effects to be brought about. However, the description of these embodiments is illustrative, and does not constitute a specific limitation on the present utility model.
The utility model provides an air conditioner indoor unit, which comprises an air duct, a cross-flow fan 1 positioned in the air duct, a heat exchanger 2 positioned in an air suction side air duct of the cross-flow fan 1, an air guide assembly 3 positioned in an air outlet side air duct of the cross-flow fan 1 and an electric heating device 4 positioned in the air duct, wherein the air guide assembly is arranged on the air outlet side air duct of the cross-flow fan 1; the electric heating device driving device is arranged in the air duct at the air outlet side of the cross-flow fan 1 and is positioned at the rear side of the air guide component 3; the electric heating device driving device is in driving connection with the electric heating device 4, the electric heating device comprises an electric heater 41, the electric heater 41 has two states under the driving of the electric heating device driving device, and the first state is that the electric heater 41 is positioned in the middle of an air outlet side air channel of the cross-flow fan 1; the second state is that the electric heater 41 is located at the air outlet side air duct side of the cross flow fan 1.
In the prior art, the electric heating device 4 is usually installed between the evaporator 2 and the cross-flow fan 1, and thus the temperature of the air on the air suction side of the cross-flow fan 1 is low, so that the temperature of the electric heating device 4 is low under the low-temperature radiation of the surrounding heat exchanger 2 in a non-working state, and condensation is generated when the electric heating device encounters cold air. According to the utility model, by changing the installation position of the electric heating device 4, the electric heating device 4 is installed on the air outlet side of the cross-flow fan 1 and is positioned at the rear side of the air guide component 3, after the arrangement, the electric heating device 4 is far away from the heat exchanger 2, the cold radiation effect of the heat exchanger 2 at the air suction side of the cross-flow fan 1 is small, the temperature of the electric heating device 4 is higher than the temperature of the heat exchanger 2 and is relatively close to the indoor temperature, and at the moment, the air temperature at the air outlet side of the cross-flow fan 1 is lower due to the fact that the air temperature is condensed by the heat exchanger 2 at the air suction side, and is lower than the temperature of the electric heating device, so that the condition that condensed water is often generated by the electric heating device 4 in a refrigerating mode in summer is avoided.
After the electric heating device 4 is arranged on the air outlet side of the cross-flow fan 1, under the condition of heating in winter, the electric heating device 4 is positioned in the middle of the air outlet side air channel of the cross-flow fan 1 so as to exert the effect of compensating the heated air to the greatest extent; when the air conditioner is used for refrigerating in summer, the electric heating device is positioned on one side of the air outlet side air channel of the cross-flow fan 1, so that the influence of the electric heating device 4 on the air outlet quantity and the air outlet speed of the air conditioner is reduced to the greatest extent.
The structure of the electric heating device driving device capable of controlling the electric heating device 4 to be in the first state and the second state is various, for example, a chute is arranged at two ends of the air duct in the width direction, and two ends of the electric heating device 4 are provided with protrusions which are in sliding connection with the chute; the electric heating device driving device comprises a stepping motor and a connecting rod, and the stepping motor is matched with the connecting rod to realize that the bulge slides in the chute, so that a first state and a second state are realized.
In the present utility model, the shape of the electric heating device 4 is various. In the first embodiment of the present utility model, as shown in fig. 1, 2 and 3, the electric heating device 4 includes an electric heater 41 having a flat shape; when the electric heating device 4 is in the first state, the electric heater 41 is perpendicular to the wind direction of the air outlet; when the electric heating device 4 is in the second state, the electric heater 41 is located at the edge of the air outlet side air duct of the cross-flow fan 1 and is parallel to the air outlet direction.
The electric heater 41 is flat, and when the electric heater is in the first state perpendicular to the wind direction of the air outlet, the contact area between the electric heating element and the air outlet is the largest, so that the air can be heated to the greatest extent; when the electric heating column 411 is in the second state parallel to the air outlet direction and positioned at the edge of the air outlet side air channel of the cross-flow fan 1, the electric heating column has a flat shape, and when the electric heating column is parallel to the air outlet direction, the electric heating column has less influence on the air outlet speed and the air outlet quantity.
The structure of the electric heater 41 is varied, and in the embodiment of the present utility model, as shown in fig. 3, the electric heater 41 includes a plurality of electric heating columns 411 arranged at intervals and extending in the width direction of the indoor unit of the air conditioner, and a plurality of heat radiating fins 412 arranged on the electric heating columns 411 perpendicular to the extending direction of the electric heating columns 411 at intervals. The electric heating columns 411 are arranged at intervals, so that influence on air output is reduced, and air flow is smoother. In the present utility model, in order to achieve the first state and the second state of the flat electric heater 41, as shown in fig. 3, a rotating shaft 42 is fixedly disposed at the lower parts of both ends of the electric heater 41, the electric heater 41 is rotatably connected with the air duct through the rotating shaft 42, the electric heater driving device is a first stepping motor 5, the output shaft of the first stepping motor 5 is fixedly connected with the rotating shaft 42, the base or the housing of the first stepping motor 5 is fixedly connected with the air duct, and the output shaft of the stepping motor 5 rotates to drive the rotating shaft 42 to rotate, thereby driving the electric heater 41 to rotate. The rotary shafts 42 are disposed at the lower portions of both ends of the electric heater 41, so that the electric heater 41 can be located at the air outlet side air duct side of the cross-flow fan 1 in the second state.
The present utility model also provides another embodiment, as shown in fig. 4 and 5, the electric heating device 4 includes an electric heater 41 with a circular arc shape, and the axis of the electric heater 41 coincides with the axis of the through-flow fan 1; when the electric heating device 4 is in the first state, the electric heater 41 is positioned in the air outlet side air duct at the front lower part of the cross-flow fan 1; when the electric heating device 4 is in the second state, the electric heater 41 is located in the rear lower air duct of the cross flow fan 1. The cross-flow fan 1 is generally cylindrical, and when the refrigerator is cooled in winter, the arc-shaped electric heater 41 can effectively increase the contact area between the electric heater 41 and the wind flow, so that the auxiliary heating effect is enhanced. When the cooling in summer is needed, the electric heating device is rotated to the rear lower part of the cross-flow fan, so that the influence on the air outlet speed and the air outlet quantity is reduced to the greatest extent.
The structure of the electric heater 41 is varied, and as shown in fig. 6, the electric heater 41 includes a plurality of electric heating columns 411 arranged at intervals and extending in the width direction of the air conditioning indoor unit, and a plurality of heat radiating fins 412 arranged on the electric heating columns 411 at intervals and perpendicular to the extending direction of the electric heating columns 411; the electric heating columns 411 are arranged at intervals, so that influence on air output is reduced, and air flow is smoother. In the present utility model, as shown in fig. 6, in order to make the axis of the electric heater 41 coincide with the axis of the cross-flow fan 1 and realize the first state and the second state of the electric heater 41 having the arc shape, connecting rods 43 are provided at both ends of the electric heater 41; the electric heating device driving device is a second stepping motor 6, one end of a connecting rod 43 is fixedly connected with the electric heater 41, the other end of the connecting rod 43 is fixedly connected with a rotating shaft of the second stepping motor 6, and the second stepping motor 6 is fixedly connected with the air duct.
It should be understood by those skilled in the art that one end of the connecting rod 43 is fixedly connected to the electric heater 41, the other end of the connecting rod 43 is fixedly connected to the rotating shaft of the second stepping motor 6, and in order to ensure that the axis of the electric heater 41 coincides with the axis of the cross-flow fan 1, the rotating shaft of the connecting rod 43 should coincide with the rotating shaft of the cross-flow fan 1.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; while the utility model has been described in detail with reference to the foregoing embodiments, it will be appreciated by those skilled in the art that variations may be made in the techniques described in the foregoing embodiments, or equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (5)
1. The indoor unit of the air conditioner comprises an air duct, a cross-flow fan (1) positioned in the air duct, a heat exchanger (2) positioned in an air suction side air duct of the cross-flow fan (1), an air guide assembly (3) positioned in an air outlet side air duct of the cross-flow fan (1) and an electric heating device (4) positioned in the air duct;
the method is characterized in that: the air conditioner also comprises an electric heating device driving device, wherein the electric heating device (4) is positioned in the air duct at the air outlet side of the cross-flow fan (1) and is positioned at the rear side of the air guide component (3); the electric heating device driving device is in driving connection with the electric heating device (4), the electric heating device comprises an electric heater (41), the electric heater (41) is in two states under the driving of the electric heating device driving device, and the first state is that the electric heater (41) is positioned in the middle of an air outlet side air duct of the cross-flow fan (1); the second state is that the electric heater (41) is positioned at one side of the air outlet side air channel of the cross-flow fan (1).
2. An air conditioning indoor unit according to claim 1, wherein: the electric heater (41) is flat; when the electric heater (41) is in the first state, the electric heater (41) is perpendicular to the wind direction of the air outlet; when the electric heater (41) is in the second state, the electric heater (41) is positioned at the edge of the air outlet side air channel of the cross-flow fan (1) and is parallel to the air outlet direction.
3. An air conditioning indoor unit according to claim 2, wherein: the electric heater (41) comprises a plurality of electric heating columns (411) which are arranged at intervals and extend along the width direction of the air conditioner indoor unit, and a plurality of radiating fins (412) which are perpendicular to the extending direction of the electric heating columns (411) and are arranged on the electric heating columns (411) at intervals; the lower parts of two ends of the electric heater (41) are fixedly provided with rotating shafts (42), the electric heater (41) is rotationally connected with the air duct through the rotating shafts (42), the electric heating device driving device is a first stepping motor (5), and an output shaft of the first stepping motor (5) is fixedly connected with the rotating shafts (42).
4. An air conditioning indoor unit according to claim 1, wherein: the electric heater (41) is arc-shaped, and the axis of the electric heater (41) is coincident with the axis of the cross-flow fan (1); when the electric heating device (4) is in the first state, the electric heater (41) is positioned in the air outlet side air duct at the front lower part of the cross-flow fan (1); when the electric heating device (4) is in the second state, the electric heater (41) is positioned in the air duct at the rear lower part of the cross-flow fan (1).
5. An air conditioning indoor unit according to claim 4, wherein: the electric heater (41) comprises a plurality of electric heating columns (411) which are arranged at intervals and extend along the width direction of the air conditioner indoor unit, and a plurality of radiating fins (412) which are perpendicular to the extending direction of the electric heating columns (411) and are arranged on the electric heating columns (411) at intervals; connecting rods (43) are arranged at two ends of the electric heater (41); the electric heating device driving device is a second stepping motor (6), one end of a connecting rod (43) is fixedly connected with the electric heater (41), the other end of the connecting rod (43) is fixedly connected with a rotating shaft of the second stepping motor (6), and the second stepping motor (6) is fixedly connected with the air duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320003119.9U CN219083270U (en) | 2023-01-03 | 2023-01-03 | Indoor unit of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320003119.9U CN219083270U (en) | 2023-01-03 | 2023-01-03 | Indoor unit of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219083270U true CN219083270U (en) | 2023-05-26 |
Family
ID=86398468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320003119.9U Active CN219083270U (en) | 2023-01-03 | 2023-01-03 | Indoor unit of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219083270U (en) |
-
2023
- 2023-01-03 CN CN202320003119.9U patent/CN219083270U/en active Active
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