CN209744561U - Indoor unit capable of continuously heating and air conditioner - Google Patents
Indoor unit capable of continuously heating and air conditioner Download PDFInfo
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- CN209744561U CN209744561U CN201920295957.1U CN201920295957U CN209744561U CN 209744561 U CN209744561 U CN 209744561U CN 201920295957 U CN201920295957 U CN 201920295957U CN 209744561 U CN209744561 U CN 209744561U
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- indoor unit
- air duct
- air
- control module
- electric auxiliary
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The utility model discloses an indoor set and air conditioner that can heat in succession, the indoor set includes: the air conditioner comprises a fan, an indoor heat exchanger, an electric auxiliary heat device, a first air channel and a second air channel, wherein the first air channel and the second air channel are arranged in a separated mode, the indoor heat exchanger is located in the first air channel, the electric auxiliary heat device is located in the second air channel, and the fan drives air flow to be sent out from the first air channel and/or the second air channel. The utility model has the advantages of continuous heating, comfortable use, low power consumption and the like.
Description
Technical Field
The utility model relates to an air conditioning technology field especially relates to indoor set and air conditioner that can heat in succession.
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. Two common defrosting treatment modes are adopted, one mode is stopping defrosting, and defrosting is carried out to melt the frost, and the mode is not feasible at lower temperature and has longer defrosting time; the other is thermal defrosting, that is, the reversing valve is adjusted to change the flow direction of the refrigerant between the indoor unit and the outdoor unit, so that the indoor unit and the outdoor unit are exchanged to achieve the defrosting effect. When the air conditioner uses the two treatment modes for defrosting, the indoor unit cannot realize continuous heating, and the indoor temperature is reduced in the defrosting period, so that the user comfort is poor.
In addition, when the outdoor environment temperature is low, the indoor unit is controlled by cold air prevention when the indoor unit is started, so that a user cannot obtain heat quickly, and the user experience is poor. After some indoor units with electric auxiliary heat quit the cold-proof air control, because when the temperature of the evaporator is lower than the indoor environment temperature, part of heat generated by the electric auxiliary heat is used for compensating the cooling energy of the evaporator, the cold and heat are offset, and the power consumption of the air conditioner is larger.
Therefore, how to design a connectable indoor unit and an air conditioner for heating is an urgent technical problem to be solved in the industry.
SUMMERY OF THE UTILITY MODEL
In order to solve the defect that prior art can't heat in succession during the defrosting, the utility model provides an indoor set and air conditioner that can heat in succession.
The utility model discloses a technical scheme be, the design indoor set includes: the air conditioner comprises a fan, an indoor heat exchanger, an electric auxiliary heat device, a first air channel and a second air channel, wherein the first air channel and the second air channel are arranged in a separated mode, the indoor heat exchanger is located in the first air channel, the electric auxiliary heat device is located in the second air channel, and the fan drives air flow to be sent out from the first air channel and/or the second air channel.
Preferably, the inside of the shell of the indoor unit is divided into an air inlet area and an air outlet area, the fan is installed in the air inlet area, and the air outlet area is separated to form a first air channel and a second air channel.
Preferably, a first valve for adjusting the opening and closing state of the first air duct is arranged in the first air duct, and the first air duct allows the air flow in the air inlet area to pass through when being opened.
Preferably, a second valve for adjusting the opening and closing state of the second air duct is arranged in the second air duct, and the second air duct allows the air flow in the air inlet area to pass through when being opened.
Preferably, the air inlet area and the air outlet area are arranged side by side from left to right.
Preferably, the first air duct and the second air duct are arranged in parallel up and down.
Preferably, the indoor unit further comprises a control module; the control module controls the first air duct, the second air duct and the electric auxiliary heating device to be switched on and off according to the running state and the running parameters of the indoor unit.
Preferably, in the heating mode, when the control module detects that the indoor unit is in a defrosting state, the first air duct is closed, and the second air duct and the electric auxiliary heating device are opened.
Preferably, in the heating mode, when the control module detects that the indoor unit is in the oil return state, the first air duct is closed, and the second air duct and the electric auxiliary heating device are opened.
Preferably, in the heating mode, when the control module detects that the actual pipe temperature of the indoor heat exchanger does not reach the preset condition, the first air duct is closed, and the second air duct and the electric auxiliary heating device are opened.
Preferably, in the heating mode, when the control module detects that the actual pipe temperature of the indoor heat exchanger reaches the preset condition for t minutes continuously, the first air duct is opened, and the second air duct and the electric auxiliary heating device are closed.
Preferably, in the heating mode, when the control module detects that the actual pipe temperature of the indoor heat exchanger reaches the preset condition for t minutes continuously, if the condensing pressure of the indoor unit is less than the preset pressure and the ambient temperature of the shell of the indoor unit is less than the preset temperature, the first air duct, the second air duct and the electric auxiliary heating device are opened.
Preferably, in the heating mode, when the control module detects that the actual pipe temperature of the indoor heat exchanger reaches the preset condition for t minutes continuously, if the condensing pressure of the indoor unit is not less than the preset pressure and/or the ambient temperature of the shell of the indoor unit is not less than the preset temperature, the first air duct is opened, and the second air duct and the electric auxiliary heating device are closed.
Preferably, the actual tube temperature of the indoor heat exchanger is: (inlet pipe temperature + outlet pipe temperature)/2, and the preset conditions are as follows: and (4) correcting the parameters of the environment temperature where the shell of the indoor unit is located.
Preferably, in the cooling mode, the control module opens the first air duct and closes the second air duct and the electric auxiliary heating device.
Preferably, in the air supply mode, the control module opens the first air duct and the second air duct and closes the electric auxiliary heating device.
The utility model also provides an air conditioner, including foretell indoor set.
Compared with the prior art, the utility model discloses well indoor heat exchanger and electric auxiliary heating device separate from each other from top to bottom and arrange, and fan drive air current is sent out from first wind channel and/or second wind channel, switches the wind channel of air supply, can select in a flexible way to adopt pure heat pump mode, heat pump to add power and assist hot mode, or pure electric auxiliary heating mode, realizes that the indoor set heats in succession during the defrosting, can blow off hot-blast when the low temperature starts, improves user's travelling comfort very fast.
Drawings
The invention is explained in more detail below with reference to exemplary embodiments and the accompanying drawings, in which:
Fig. 1 is a schematic structural view of an indoor unit of the present invention;
fig. 2 is a control flow chart of the indoor unit of the present invention.
Detailed Description
As shown in fig. 1, an indoor unit according to a preferred embodiment of the present invention includes: fan 3, indoor heat exchanger 4 and electric auxiliary heating device 5, the inside air inlet district and the air-out district of being divided into of shell of indoor set, fan 3 installs in the air inlet district, the air-out district is separated and is formed first wind channel 1 and second wind channel 2, indoor heat exchanger 4 is arranged in first wind channel 1, electric auxiliary heating device 5 is arranged in second wind channel 2, fan 3 drives the air current and sends out from first wind channel 1 and/or second wind channel 2, through the switching in wind channel, can realize that the indoor set also can heat in succession during the defrosting, can blow off hot-blastly when the low temperature starts very fast, improve user's travelling comfort. In addition, the indoor heat exchanger 4 and the electric auxiliary heating device 5 are arranged in a separated mode, the problem that cold and hot counteractions exist in indoor heating in the prior art can be effectively solved, air outlet wind resistance can be reduced, and power consumption of a motor of the indoor unit is reduced.
The switch switching structure of the first air duct 1 and the second air duct 2 is that a first valve 6 for adjusting the switch state of the first air duct 1 is arranged in the first air duct 1, the first valve 6 allows the airflow in the air inlet area to pass through the first air duct 1 when opened, a second valve 7 for adjusting the switch state of the second air duct 2 is arranged in the second air duct 2, and the second valve 7 allows the airflow in the air inlet area to pass through the second air duct 2 when opened. In the preferred embodiment, the air inlet area and the air outlet area are arranged side by side from left to right, and the first air duct 1 and the second air duct 2 are arranged side by side from top to bottom so as to reasonably and effectively utilize the inner space of the shell of the indoor unit.
preferably, the indoor unit further includes a control module, the control module controls the first air duct 1, the second air duct 2 and the electric auxiliary heating device 5 to be opened and closed according to the operation state and the operation parameters of the indoor unit, and the control mode of the control module is described in detail below.
As shown in fig. 2, in the heating mode, if the control module detects that the indoor unit is in the defrosting state, the first air duct 1 is closed, the second air duct 2 and the electric auxiliary heating device 5 are opened, at this time, the fan 3 drives the air flow to be sent out from the second air duct 2, and the air is heated by the electric auxiliary heating device 5 to send out hot air to the indoor unit, so that continuous heating in the defrosting state of the indoor unit is realized.
In the heating mode, if the control module detects that the indoor unit is in an oil return state, the first air duct 1 is closed, the second air duct 2 and the electric auxiliary heating device 5 are opened, at the moment, the fan 3 drives air flow to be sent out from the second air duct 2, the air is heated by the electric auxiliary heating device 5, and hot air is sent out to the indoor unit, so that continuous heating in the oil return state of the indoor unit is achieved.
Under the heating mode, if control module detects that indoor heat exchanger's actual pipe temperature does not reach the preset condition, close first wind channel 1, open second wind channel 2 and electric auxiliary heating device 5, the temperature of indoor heat exchanger 4 can't satisfy indoor hot-blast needs this moment, and it is hot-blast to send out to indoor through electric auxiliary heating device 5 heated air, can blow off hot-blastly very fast when the low temperature starts, improves user's travelling comfort. It should be noted that the actual tube temperature of the indoor heat exchanger 4 is: (inlet pipe temperature + outlet pipe temperature)/2, and the preset conditions are as follows: and (4) the ambient temperature of the shell of the indoor unit + the correction parameter X.
If the control module detects that the actual pipe temperature of the indoor heat exchanger 4 reaches the preset condition for t minutes continuously, the first air channel 1 is opened, the second air channel 2 and the electric auxiliary heat device 5 are closed, the temperature of the indoor heat exchanger 4 meets the requirement of indoor hot air, the air is heated by the indoor heat exchanger 4 and is sent out to the indoor, and the electric auxiliary heat device 5 is closed to reduce power consumption. After the first air duct 1 is opened and the second air duct 2 and the electric auxiliary heat device 5 are closed, whether the second air duct 2 and the electric auxiliary heat device 5 need to be opened or not is judged according to the condensing pressure and the ambient temperature of the indoor unit, if the condensing pressure of the indoor unit is smaller than the preset pressure Y and the ambient temperature of the shell of the indoor unit is smaller than the preset temperature Z, the first air duct 1, the second air duct 2 and the electric auxiliary heat device 5 are opened, air is heated by the indoor heat exchanger 4 and the electric auxiliary heat device 5 together to send hot air to the indoor, and the indoor temperature quickly reaches the set temperature of a user; if the condensing pressure of the indoor unit is not less than the preset pressure Y, or the ambient temperature of the shell of the indoor unit is not less than the preset temperature Z, or the condensing pressure of the indoor unit is not less than the preset pressure Y and the ambient temperature of the shell of the indoor unit is not less than the preset temperature Z, the open state of the first air duct 1 is maintained, the second air duct 2 and the electric auxiliary heating device 5 are maintained to be closed, and the indoor heat exchanger 4 is independently used for heating air.
In the cooling mode, the control module opens the first air channel 1, closes the second air channel 2 and the electric auxiliary heating device 5, utilizes the indoor heat exchanger 4 to cool air at the moment, and the fan 3 drives the airflow to be sent out from the first air channel 1.
Under the air supply mode, the control module opens the first air channel 1 and the second air channel 2, closes the electric auxiliary heating device 5, and the fan 3 drives the air flow to flow out from the first air channel 1 and the second air channel 2 at the moment so as to increase the air supply quantity and meet the indoor air quantity requirement.
The utility model also provides an air conditioner, including foretell indoor set.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (17)
1. A continuously heatable indoor unit comprising: fan, indoor heat exchanger and electric auxiliary heating device, its characterized in that still includes: the indoor heat exchanger is positioned in the first air duct, the electric auxiliary heating device is positioned in the second air duct, and the fan drives airflow to be sent out from the first air duct and/or the second air duct.
2. The indoor unit of claim 1, wherein the inside of the casing of the indoor unit is divided into an air inlet area in which the fan is installed and an air outlet area partitioned to form the first air path and the second air path.
3. The indoor unit of claim 2, wherein the first duct has a first valve for adjusting the opening/closing state thereof, and the first duct is opened to allow the air flow of the intake area to pass therethrough.
4. The indoor unit of claim 2, wherein the second duct has a second valve for adjusting the opening/closing state thereof, and the second duct is opened to allow the air flow of the intake area to pass therethrough.
5. The indoor unit of claim 2, wherein the air inlet area and the air outlet area are arranged side by side in a left-right direction.
6. The indoor unit of claim 2, wherein the first duct and the second duct are disposed in parallel up and down.
7. The indoor unit capable of continuous heating according to claim 1, further comprising a control module; the control module controls the first air duct, the second air duct and the electric auxiliary heating device to be switched on and off according to the running state and the running parameters of the indoor unit.
8. The indoor unit of claim 7, wherein in the heating mode, when the control module detects that the indoor unit is in a defrosting state, the control module closes the first air duct and opens the second air duct and the electric auxiliary heating device.
9. The indoor unit of claim 7, wherein in the heating mode, when the control module detects that the indoor unit is in the oil return state, the control module closes the first air duct and opens the second air duct and the electric auxiliary heating device.
10. The indoor unit capable of continuously heating according to claim 7, wherein in the heating mode, when the control module detects that the actual tube temperature of the indoor heat exchanger does not reach a preset condition, the control module closes the first air duct and opens the second air duct and the electric auxiliary heating device.
11. The indoor unit capable of continuously heating according to claim 7, wherein in the heating mode, when the control module detects that the actual tube temperature of the indoor heat exchanger reaches a preset condition for t minutes continuously, the control module opens the first air duct and closes the second air duct and the electric auxiliary heating device.
12. The indoor unit capable of continuously heating according to claim 11, wherein in the heating mode, when the control module detects that the actual tube temperature of the indoor heat exchanger reaches the preset condition for t minutes continuously, if the condensing pressure of the indoor unit is less than the preset pressure and the ambient temperature of the casing of the indoor unit is less than the preset temperature, the first air duct, the second air duct, and the electric auxiliary heating device are opened.
13. The indoor unit capable of continuously heating according to claim 11, wherein in the heating mode, when the control module detects that the actual tube temperature of the indoor heat exchanger reaches the preset condition for t minutes continuously, if the condensing pressure of the indoor unit is not less than the preset pressure and/or the ambient temperature of the casing of the indoor unit is not less than the preset temperature, the first air duct is opened, and the second air duct and the electric auxiliary heating device are closed.
14. A continuously heatable indoor unit as claimed in any one of claims 10 to 13, wherein the actual tube temperature of the indoor heat exchanger is: (inlet pipe temperature + outlet pipe temperature)/2, wherein the preset conditions are as follows: and (4) correcting the parameters of the ambient temperature where the shell of the indoor unit is located.
15. The indoor unit capable of continuous heating according to claim 7, wherein in the cooling mode, the control module opens the first air duct and closes the second air duct and the electric auxiliary heating device.
16. The indoor unit of claim 7, wherein in the air supply mode, the control module opens the first air duct and the second air duct and closes the electric auxiliary heating device.
17. An air conditioner, comprising: a continuously heatable indoor unit as claimed in any one of claims 1 to 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920295957.1U CN209744561U (en) | 2019-03-08 | 2019-03-08 | Indoor unit capable of continuously heating and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920295957.1U CN209744561U (en) | 2019-03-08 | 2019-03-08 | Indoor unit capable of continuously heating and air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN209744561U true CN209744561U (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920295957.1U Active CN209744561U (en) | 2019-03-08 | 2019-03-08 | Indoor unit capable of continuously heating and air conditioner |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737513A (en) * | 2019-03-08 | 2019-05-10 | 珠海格力电器股份有限公司 | Can continuous heating indoor unit and air conditioner |
| CN113970175A (en) * | 2020-07-24 | 2022-01-25 | 广东美的制冷设备有限公司 | Air conditioner, radiation control method and device thereof, and computer readable storage medium |
| CN114909758A (en) * | 2022-04-29 | 2022-08-16 | 珠海格力电器股份有限公司 | Intelligent air purification device and method based on degerming and VOCs and air purifier |
-
2019
- 2019-03-08 CN CN201920295957.1U patent/CN209744561U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737513A (en) * | 2019-03-08 | 2019-05-10 | 珠海格力电器股份有限公司 | Can continuous heating indoor unit and air conditioner |
| CN113970175A (en) * | 2020-07-24 | 2022-01-25 | 广东美的制冷设备有限公司 | Air conditioner, radiation control method and device thereof, and computer readable storage medium |
| CN114909758A (en) * | 2022-04-29 | 2022-08-16 | 珠海格力电器股份有限公司 | Intelligent air purification device and method based on degerming and VOCs and air purifier |
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