CN211926004U - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- CN211926004U CN211926004U CN202020585738.XU CN202020585738U CN211926004U CN 211926004 U CN211926004 U CN 211926004U CN 202020585738 U CN202020585738 U CN 202020585738U CN 211926004 U CN211926004 U CN 211926004U
- Authority
- CN
- China
- Prior art keywords
- pipe
- coil
- air conditioner
- defrosting
- connection pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides an air conditioner. Relates to the technical field of air conditioners. The air conditioner includes: the air conditioner comprises a connecting assembly, a plurality of coils and a capillary tube, wherein the plurality of coils are arranged in parallel, the connecting assembly comprises a first connecting tube, the first connecting tube is connected with the liquid outlet of one of the coils, the capillary tube is connected with the liquid outlet of one of the coils, the coil tube corresponding to the first connecting tube is positioned below the coil tube connected with the capillary tube, the first connecting tube is used for running when the air conditioner is defrosted, and the flow of a heat exchange medium in the first connecting tube is larger than that of the heat exchange medium in the capillary tube in the same time. The utility model provides an air conditioner, the flow of the heat transfer medium in the first connecting tube that switches on with the coil pipe of below is greater than the flow of the heat transfer medium in the capillary, makes the flow that is located the coil pipe of below in the heat transfer medium be greater than the flow of the coil pipe that is located the top for the defrosting speed of below coil pipe has shortened the defrosting time of below coil pipe, thereby has shortened the defrosting time of whole air conditioner.
Description
Technical Field
The utility model relates to an air conditioner technical field particularly, relates to an air conditioner.
Background
When the air conditioner defrosts, the four-way valve is powered off, the air conditioning system runs according to the refrigeration flow direction, and at the moment, high-temperature gaseous refrigerant enters the outdoor heat exchanger from the compressor to melt frost on the surface of the outdoor heat exchanger. When the unit defrosts, the defrosting time is long due to the long time, and the heating effect and the energy efficiency are reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem how to improve the defrosting speed of air conditioner, shorten the time of defrosting.
In order to solve the above problems, the present invention provides an air conditioner.
The embodiment of the utility model provides an in provide an air conditioner includes: coupling assembling, a plurality of coil pipe and capillary, it is a plurality of the coil pipe sets up side by side, coupling assembling includes first connecting pipe, first connecting pipe and one of them the liquid outlet of coil pipe is connected, capillary and one of them the liquid outlet of coil pipe is connected, with first connecting pipe corresponds the coil pipe be located with the capillary is connected the below of coil pipe, first connecting pipe is used for the operation during the air conditioner defrosting, in the same time, heat medium's in the first connecting pipe flow is greater than heat medium's in the capillary flow.
The utility model provides an air conditioner, when the air conditioner was in under the defrosting mode, because the coil pipe that is located the top melts water and can constantly down flow at the in-process of changing the frost, under the equal condition of heat transfer medium's flow, the coil pipe that is located the below changes the frost speed slower. The flow of the heat exchange medium in the first connecting pipe communicated with the coil pipe below is larger than that of the heat exchange medium in the capillary pipe, so that the flow of the heat exchange medium in the coil pipe below is larger than that of the coil pipe above, the defrosting speed of the coil pipe below is increased, the defrosting time of the coil pipe below is shortened, and the defrosting time of the whole air conditioner is shortened.
In an alternative embodiment, the first connecting tube has a tube diameter larger than that of the capillary tube.
In an optional embodiment, the connection assembly further includes a second connection pipe, the second connection pipe is connected in parallel with the first connection pipe, and a switch valve is disposed on the first connection pipe and is configured to be opened when the air conditioner operates in a defrosting mode, so that the first connection pipe is conducted with the liquid outlet of the coil pipe; the switch valve is also used for closing when the air conditioner exits the defrosting mode, so that the first connecting pipe and the liquid outlet of the coil pipe are cut off.
In an alternative embodiment, the tube diameter of the second connecting tube is equal to the tube diameter of the capillary tube.
In an alternative embodiment, the on-off valve is configured to open after receiving a defrosting command.
In an optional implementation manner, the air conditioner further includes a temperature sensor, the temperature sensor is disposed at the liquid outlet of the coil corresponding to the first connection pipe, and is configured to detect an outlet pipe temperature value of a heat exchange medium of the liquid outlet, and when the outlet pipe temperature value is greater than a preset temperature value, the switch valve is closed.
In optional embodiment, coupling assembling still includes the third connecting pipe, the one end of third connecting pipe with correspond the coil pipe the liquid outlet is connected, the other end with first connecting pipe reaches the second connecting pipe is connected, temperature sensor sets up on the third connecting pipe.
In an alternative embodiment, the tube diameter of the third connecting tube is equal to the tube diameter of the capillary tube.
In an optional embodiment, the connection assembly further includes a fourth connection pipe, the air conditioner further includes a branching body, and one end of the capillary pipe, which is far away from the coil pipe, is connected with the branching body through the fourth connection pipe and the branching body.
In an alternative embodiment, the tube diameter of the fourth connecting tube is equal to the tube diameter of the capillary tube.
In an alternative embodiment, the roughness of the inner wall of the first connecting tube is less than the roughness of the inner wall of the capillary tube.
Drawings
FIG. 1 is a schematic diagram of a conventional air conditioner;
fig. 2 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention.
Description of reference numerals:
100-an air conditioner; 110-a compressor; 120-a condenser; 130-an evaporator; 140-a throttle valve; 150-a four-way valve; 151-first valve port; 152-a second valve port; 153-third valve port; 154-fourth valve port; 160-gas-liquid separator; 10-a connecting assembly; 11-a first connection pipe; 12-a second connecting tube; 13-a switching valve; 14-a temperature sensor; 15-a third connecting tube; 16-a fourth connecting tube; 17-a first joint; 18-a second linker; 20-coil pipe; 21-a liquid outlet; 30-a capillary tube; 40-a shunt body; 10 a-an air conditioner; 11 a-a shunt body; 12 a-a temperature sensor; 13 a-coiled tubing; 14 a-a capillary; 15 a-outlet.
Detailed Description
When the air conditioner 10a is defrosting, the four-way valve is powered off, the air conditioner 10a runs according to the cooling flow direction, and at the moment, high-temperature gaseous refrigerant enters the outdoor heat exchanger from the compressor to melt the frost on the surface of the outdoor heat exchanger. When the unit defrosts, the defrosting time is long due to the long time, and the heating effect and the energy efficiency are reduced.
For example, fig. 1 provides an air conditioner 10a, where the air conditioner 10a includes a branching body 11a, a temperature sensor 12a, a plurality of coils 13a and a plurality of capillaries 14a, the plurality of coils 13a are arranged in parallel, the plurality of capillaries 14a are connected to the liquid outlets 15a of the plurality of coils 13a in a one-to-one correspondence manner, and the temperature sensor 12a is disposed at the liquid outlet 15a of the coil 13a located at the lowest position. One end of the plurality of capillaries 14a remote from the coil 13a is connected to the branching body 11 a. When the air conditioner 10a is defrosting, the temperature sensor 12a detects an outlet pipe temperature value of the heat exchange medium at the liquid outlet 15a of the coil 13a located at the lowest position, and when the outlet pipe temperature value is greater than a preset temperature value, it can be determined that defrosting is completed, and the defrosting mode is exited. In the defrosting process, because the melted water of the defrosting above flows from top to bottom, the defrosting of the coil pipe 13a located above is often completed, and the defrosting of the coil pipe 13a located at the lowest is also completed. Whether the defrosting mode is exited or not is determined by the fact that defrosting of the coil 13a located at the lowest position is completed, and the defrosting mode can be exited only after defrosting of the coil 13a located at the lowest position is completed, so that the defrosting speed of the structure is low, and defrosting time is long.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 2, the present embodiment provides an air conditioner 100, the air conditioner 100 provided in the present embodiment includes a compressor 110, a condenser 120, an evaporator 130, a throttle valve 140, a four-way valve 150, and a gas-liquid separator 160, the four-way valve 150 has a first valve port 151, a second valve port 152, a third valve port 153, and a fourth valve port 154, an outlet of the compressor 110 is connected to the first valve port 151, the second valve port 152 is connected to the condenser 120, the third valve port 153 is connected to the evaporator 130, the fourth valve port 154 is connected to the gas-liquid separator 160, an inlet of the compressor 110 is connected to the gas-liquid separator 160, and the throttle valve 140 is disposed between the condenser 120 and the evaporator 130.
Referring to fig. 3, the air conditioner 100 of the present embodiment can increase defrosting speed and shorten defrosting time during defrosting.
In the present embodiment, the air conditioner 100 further includes: the air conditioner comprises a connecting assembly 10, a plurality of coil pipes 20 and a capillary tube 30, wherein the plurality of coil pipes 20 are arranged in parallel, the connecting assembly 10 comprises a first connecting pipe 11, the first connecting pipe 11 is connected with a liquid outlet 21 of one of the coil pipes 20, the capillary tube 30 is connected with the liquid outlet 21 of one of the coil pipes 20, the coil pipe 20 corresponding to the first connecting pipe 11 is located below the coil pipe 20 connected with the capillary tube 30, the first connecting pipe 11 is used for running when the air conditioner 100 is defrosted, and in the same time, the flow rate of a heat exchange medium in the first connecting pipe 11 is larger than that of a heat exchange medium in the capillary tube 30. In the present embodiment, the coil 20 connected to the first connection pipe 11 is located below the coil 20 connected to the capillary tube 30, and when the air conditioner 100 is in the defrosting mode, since the melted water flows down continuously during defrosting of the coil 20 located above, the defrosting speed of the coil 20 located below is slow when the flow rate of the heat exchange medium is the same. In this embodiment, in the same time, the flow rate of the heat exchange medium in the first connecting pipe 11 connected to the coil 20 located below is greater than the flow rate of the heat exchange medium in the capillary 30 connected to the coil 20 located above, so that the flow rate of the heat exchange medium in the coil 20 located below is greater than the flow rate of the heat exchange medium in the coil 20 located above, the defrosting speed of the coil 20 located below is increased, the defrosting time of the coil 20 located below is shortened, and the defrosting time of the whole air conditioner 100 is shortened.
It should be noted that, because the upper coil 20 melts water and continuously flows downwards in the defrosting process, in the plurality of coils 20, the defrosting speed of the coil 20 is gradually reduced along with the continuous reduction of the height in the order from top to bottom, and in two adjacent coils 20, the defrosting speed of the lower coil 20 is slower than that of the upper coil 20, and the defrosting speed of the lower coil 20 can be increased by increasing the flow of the lower coil 20, so that the defrosting speed of the lower coil 20 is substantially the same as that of the upper coil 20.
In this embodiment, the first connecting pipe 11 is connected to the coil 20 located at the lowermost position among the plurality of coils 20, and after the air conditioner 100 enters the defrosting mode, the defrosting speed of the coil 20 located at the lowermost position is the slowest, and the first connecting pipe 11 is connected to the coil 20 located at the lowermost position, so that the flow rate of the heat exchange medium inside the coil 20 located below can be increased in the defrosting process, the defrosting speed of the coil 20 located at the lowermost position is increased, and the defrosting speed of the coil 20 located at the lowermost position can be kept consistent with the defrosting speed of the coil 20 located above.
It should be noted that, in another embodiment of the present invention, the coil 20 located below may be connected to the first connecting pipe 11, the coil 20 located above may be connected to the capillary 30, and the coil 20 located below may be connected to the first connecting pipe 11. That is, in the plurality of coils 20 arranged in parallel, the tube diameter of the capillary tube 30 connected to the coil 20 may be continuously increased as the height is continuously decreased in the order from top to bottom, and the tube diameter of the first connection tube 11 connected to the coil 20 located at the lowermost position may be the largest.
In this embodiment, the coil 20 may be the coil 20 in the evaporator 130, or may be the coil 20 in the condenser 120.
In the present embodiment, the first connection pipe 11 is a copper pipe.
In the present embodiment, the tube diameter of the first connection tube 11 is larger than that of the capillary tube 30. The resistance of the heat exchange medium flowing through the first connecting pipe 11 is smaller than the resistance flowing through the capillary 30, so that the flow rate of the first connecting pipe 11 is larger than that of the capillary 30, the defrosting speed of the lower coil 20 is increased, and the defrosting time of the whole air conditioner 100 is shortened.
It should be noted that, in the present embodiment, the pipe diameter of the first connection pipe 11 is larger than the pipe diameter of the capillary 30, but not limited thereto, in other embodiments of the present invention, the roughness of the inner wall of the first connection pipe 11 may be smaller than the roughness of the inner wall of the capillary 30. When the roughness of the inner wall of the first connection pipe 11 is less than that of the inner wall of the capillary tube 30, the resistance of the heat exchange medium flowing through the first connection pipe 11 is less than that flowing through the capillary tube 30, so that the flow rate of the first connection pipe 11 is greater than that of the capillary tube 30, the defrosting speed of the lower coil tube 20 is increased, and the defrosting time of the whole air conditioner 100 is shortened.
In this embodiment, the connection assembly 10 further includes a second connection pipe 12, the second connection pipe 12 is connected in parallel to the first connection pipe 11, a switch valve 13 is disposed on the first connection pipe 11, and the switch valve 13 is configured to be opened when the air conditioner 100 operates in the defrosting mode, so that the first connection pipe 11 is conducted with the liquid outlet 21 of the coil 20; the on-off valve 13 is also used to close when the air conditioner 100 exits the defrosting mode, so that the first connection pipe 11 is blocked from the liquid outlet 21 of the coil 20.
In this embodiment, the switch valve 13 is disposed on the first connecting pipe 11, after the air conditioner 100 enters the defrosting mode, the switch valve 13 is opened, the first connecting pipe 11 is conducted with the liquid outlet 21 of the coil 20, the heat exchange medium in the coil 20 flows out from the first connecting pipe 11, when the air conditioner 100 exits the defrosting mode, the switch valve 13 is closed, the first connecting pipe 11 is cut off from the liquid outlet 21 of the coil 20, the second connecting pipe 12 is conducted with the liquid outlet 21 of the coil 20, and the heat exchange medium in the coil 20 flows out from the second connecting pipe 12.
When the air conditioner 100 is in a normal operation mode, for example, the air conditioner 100 is in a heating mode or a cooling mode, the switching valve 13 is closed. That is, when the air conditioner 100 is in the non-defrost mode, the switching valve 13 is closed. When the air conditioner 100 enters the defrosting mode, the switching valve 13 is opened.
In the present embodiment, the pipe diameter of the second connection pipe 12 is smaller than that of the first connection pipe 11. When the air conditioner 100 enters the defrosting mode, the switch valve 13 is opened, the liquid outlet 21 of the coil pipe 20 is communicated with the first connecting pipe 11, because the pipe diameter of the first connecting pipe 11 is larger than that of the second connecting pipe 12, the resistance of the first connecting pipe 11 is smaller than that of the second connecting pipe 12, after entering the defrosting mode, most of the heat exchange medium flowing out of the liquid outlet 21 flows out of the first connecting pipe 11 with smaller resistance, the resistance of the heat exchange medium passing through is reduced by switching the second connecting pipe 12 with smaller pipe diameter to the first connecting pipe 11 with larger pipe diameter, the flow of the heat exchange medium in the coil pipe 20 is increased, and thus the defrosting speed of the heat exchange medium in the coil pipe 20 is increased.
In this embodiment, the diameters of the second connecting pipe 12 and the capillary 30 are equal, and when the air conditioner 100 enters a normal heating mode or a cooling mode after exiting a defrosting mode, the second connecting pipe 12 is connected to the coil 20, so that the coil 20 connected to the second connecting pipe 12 can be in the same working state as the coil 20 connected to the capillary 30 in other modes, and the air conditioner 100 can work normally in a non-defrosting mode.
In the present embodiment, the on-off valve 13 is configured to open after receiving a defrosting instruction. After the air conditioner 100 receives the defrosting command, the switch valve 13 is opened, and the liquid outlet 21 of the coil 20 is communicated with the first connecting pipe 11, so that the heat exchange medium flows through the first connecting pipe 11 with smaller resistance, the flow of the heat exchange medium in the coil 20 is increased, and the defrosting speed of the coil 20 is accelerated.
In the present embodiment, the air conditioner 100 enters the defrosting mode after receiving the defrosting command, and performs defrosting processing on the coil 20. Here, the defrosting mode refers to the entire process from the opening of the on-off valve 13 to the closing of the on-off valve 13. The on-off valve 13 is opened to indicate that the air conditioner 100 enters the defrost mode, and the on-off valve 13 is closed to indicate that the air conditioner 100 exits the defrost mode. The defrosting instruction can be an instruction sent by a user or an instruction sent automatically by the air conditioner.
In this embodiment, the air conditioner 100 further includes a temperature sensor 14, the temperature sensor 14 is disposed at the liquid outlet 21 of the coil 20 corresponding to the first connecting pipe 11, and is configured to detect an outlet pipe temperature value of the heat exchange medium of the liquid outlet 21, and when the outlet pipe temperature value is greater than a preset temperature value, the switch valve 13 is closed.
In this embodiment, when the outlet tube temperature value of the heat exchange medium at the liquid outlet 21 detected by the temperature sensor 14 is greater than the preset temperature value, it indicates that the outlet tube temperature value of the heat exchange medium flowing out of the coil 20 is relatively high, and the heat requirement required in the defrosting process on the coil 20 is relatively low, which indicates that defrosting of the coil 20 is substantially completed. When the defrosting of the coil pipe 20 connected to the first connection pipe 11 is completed, the defrosting mode may be exited and the switching valve 13 may be controlled to be closed.
In the present embodiment, in the sequence of the plurality of coils 20 from top to bottom, the defrosting speed of the coil 20 below is slower, and after the defrosting of the coil 20 at the lowest position is completed, the whole air conditioner 100 may be considered to have been defrosted. Therefore, it is sufficient to determine whether or not the defrosting of the air conditioner 100 is completed, and whether or not the defrosting of the lowermost coil 20 is completed.
In the present embodiment, the temperature sensor 14 and the on-off valve 13 may be electrically connected, and the on-off valve 13 is directly controlled to close by a simple logic circuit when the outlet pipe temperature value detected by the temperature sensor 14 is less than a preset temperature value. Alternatively, both the temperature sensor 14 and the switch valve 13 may be electrically connected to the controller, and when the temperature sensor 14 transmits the detected outlet pipe temperature value to the controller, the controller controls the switch valve 13 to close when the outlet pipe temperature value is greater than a preset temperature value.
In this embodiment, the connection assembly 10 further includes a third connection pipe 15, one end of the third connection pipe 15 is connected to the liquid outlet 21 of the corresponding coil 20, the other end is connected to the first connection pipe 11 and the second connection pipe 12, and the temperature sensor 14 is disposed on the third connection pipe 15.
In this embodiment, the third connecting pipe 15 is disposed between the liquid outlet 21 of the coil 20 and the first connecting pipe 11 and the second connecting pipe 12, and is mainly used for installing the temperature sensor 14.
In this embodiment, the connection assembly 10 further includes a first joint 17, the first joint 17 has a first interface (not shown), a second interface (not shown) and a third interface (not shown) that are communicated with each other, the first interface (not shown) is communicated with the liquid outlet 21 of the corresponding coil 20, the second interface (not shown) is communicated with the third connection pipe 15, and the third interface (not shown) is communicated with the second connection pipe 12.
In the present embodiment, the pipe diameter of the third connection pipe 15 is smaller than that of the first connection pipe 11. When the air conditioner 100 is in the non-defrosting mode, the third connection pipe 15 is communicated with the second connection pipe 12, so that the air conditioner 100 can normally operate in the non-defrosting mode.
In this embodiment, the tube diameters of the capillary tubes 30 of the third connecting tube 15 are equal, and when the air conditioner 100 is in the non-defrosting mode, the heat exchange medium flowing out of the liquid outlet 21 of the coil 20 flows out after passing through the third connecting tube 15 and the second connecting tube 12, so that the normal operation of the air conditioner 100 in the non-defrosting mode can be ensured.
In this embodiment, the connection assembly 10 further includes a fourth connection pipe 16, the air conditioner 100 further includes a branching body 40, one end of the capillary 30 away from the coil 20 is connected to the branching body 40, and the fourth connection pipe 16 connects the first connection pipe 11, the second connection pipe 12 and the branching body 40.
It should be noted that, in this embodiment, the connection assembly 10 further includes the fourth connecting pipe 16, but is not limited thereto, in other embodiments of the present invention, the connection assembly 10 may not include the fourth connecting pipe 16, one end of the second connecting pipe 12 away from the third connecting pipe 15 and one end of the first connecting pipe 11 away from the third connecting pipe 15 are directly connected to the shunt body 40, and the same scheme as this embodiment can achieve the effect of this embodiment, which is all within the protection scope of the present invention.
In this embodiment, the connection assembly 10 further includes a second joint 18, the second joint 18 has a fourth interface (not shown), a fifth interface (not shown) and a sixth interface (not shown) which are communicated with each other, the fourth interface is communicated with the second connection pipe 12, the fifth interface is connected with the first connection pipe 11, and the sixth interface is communicated with the fourth connection pipe 16.
In the present embodiment, the pipe diameter of the fourth connecting pipe 16 is smaller than that of the first connecting pipe 11. When the air conditioner 100 is in the non-defrosting mode, the third connecting pipe 15, the second connecting pipe 12 and the fourth connecting pipe 16 are sequentially communicated, so that the air conditioner 100 can normally operate in the non-defrosting mode.
In this embodiment, the diameter of the fourth connecting pipe 16 is equal to the diameter of the capillary 30, and when the air conditioner 100 is in the non-defrosting mode, the heat exchange medium flowing out of the liquid outlet 21 of the coil 20 sequentially passes through the second connecting pipe 12, the second connecting pipe 12 and the fourth connecting pipe 16 and then flows out, so that the normal operation of the air conditioner 100 in the non-defrosting mode can be ensured.
In this embodiment, in the non-defrost mode, the on-off valve 13 is closed, and the liquid outlet 21 of the coil 20 is communicated with the fourth connection pipe 16 through the second connection pipe 12. The lengths of the second connecting pipe 12 and the fourth connecting pipe 16 need to be adjusted according to the condition of the air conditioner 100 when the air conditioner 100 is developed, so that the total resistance of the second connecting pipe 12 and the fourth connecting pipe 16 should ensure the flow rate of the heat exchange medium in the non-defrosting mode, the air conditioner 100 can exert the optimal heat exchange effect, and the unit capacity is improved. In the adjusting process, the outlet pipe temperature of each path of the outdoor air conditioner 100 in the heating mode of the air conditioner 100 is tested, and the outlet pipe temperature value at the liquid outlet 21 of the lowermost coil 20 is ensured to be consistent with the outlet pipe temperature values of other coils 20. When the temperature of the outlet pipe of the lowest coil pipe 20 is high, the total length of the second connecting pipe 12 and the fourth connecting pipe 16 is shortened, the resistance of the outlet pipe of the coil pipe 20 is reduced, the flow of the heat exchange medium is increased, and the temperature of the outlet pipe is reduced. When the outlet pipe temperature value of the lowermost coil pipe 20 is low, the total length of the second connecting pipe 12 and the fourth connecting pipe 16 needs to be increased, the outlet pipe resistance of the path is increased, the flow rate of the heat exchange medium of the path is reduced, and the outlet pipe temperature value is increased.
In the defrosting mode, the on-off valve 13 is opened, and the liquid outlet 21 of the coil 20 is communicated with the fourth connection pipe 16 through the first connection pipe 11. The length of the fourth connection pipe 16 should ensure the heat exchange medium flow of the coil 20 located at the bottom during defrosting, so that the defrosting time at the bottom is just the latest time of all the coils 20, if defrosting is too fast, the coil 20 located at the top will not be defrosted when exiting the defrosting mode, and other coils 20 will not defrost well, and if defrosting is too slow, the defrosting time will be lengthened, and the using effect will be affected.
It is also necessary to verify the defrosting experiment, and measure the outlet pipe temperature of each coil 20 of the air conditioner 100 during defrosting, so as to ensure that the lowest outlet pipe temperature is slightly lower than that of the other coils 20. When the defrosting mode is exited, and the temperature of the outlet pipe of the coil pipe 20 at the bottom is higher than that of the other coil pipes 20, it is indicated that the defrosting speed of the coil pipe 20 at the bottom is too high, and at this time, the length of the fourth connecting pipe 16 needs to be lengthened, so that the resistance of the whole connecting assembly 10 is increased, the flow rate is reduced, and the defrosting speed of the last route is reduced.
When the defrosting mode is exited, and the outlet pipe temperature of the coil pipe 20 at the bottom is low, it is described that the defrosting of the coil pipe 20 at the bottom is slow, the length of the fourth connecting pipe 16 needs to be reduced, the resistance of the whole connecting assembly 10 is reduced, the flow of the heat exchange medium of the coil pipe 20 at the bottom is increased, and the defrosting speed is accelerated.
The working principle of the air conditioner 100 provided by the embodiment is as follows: in this embodiment, after receiving the defrosting command, the switch valve 13 is opened, the liquid outlet 21 of the coil 20 is communicated with the fourth connecting pipe 16 through the first connecting pipe 11, and the heat exchange medium flows to the fourth connecting pipe 16 through the first connecting pipe 11 and is then discharged, so as to defrost the liquid. When the ambient temperature value detected by the temperature sensor 14 is greater than the preset temperature value, indicating that defrosting is completed, the switch valve 13 is closed, the first connecting pipe 11 is cut off from the corresponding liquid outlet 21 of the coil 20, so that the liquid outlet 21 of the lowermost coil 20 is communicated with the fourth connecting pipe 16 through the second connecting pipe 12, and the air conditioner 100 completes the work in other modes.
In summary, in the air conditioner 100 provided in this embodiment, in the defrosting mode, since the pipe diameter of the first connecting pipe 11 is smaller than the pipe diameter of the capillary 30, the flow rate of the heat exchange medium of the lowermost coil 20 is greater than that of the upper coil 20, so as to accelerate the defrosting speed of the lower coil 20, and the defrosting speed of the lowermost coil 20 can be kept consistent with that of the upper coil 20.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.
Claims (10)
1. An air conditioner, comprising: coupling assembling (10), a plurality of coil pipe (20) and capillary (30), it is a plurality of coil pipe (20) set up side by side, coupling assembling (10) include first connecting pipe (11), first connecting pipe (11) and one of them liquid outlet (21) of coil pipe (20) are connected, capillary (30) and one of them liquid outlet (21) of coil pipe (20) are connected, with first connecting pipe (11) correspond coil pipe (20) be located with capillary (30) are connected the below of coil pipe (20), first connecting pipe (11) are used for operating when air conditioner (100) defrosting, in the same time, the flow of heat transfer medium in first connecting pipe (11) is greater than the flow of heat transfer medium in capillary (30).
2. The air conditioner according to claim 1, wherein the first connection pipe (11) has a pipe diameter larger than that of the capillary tube (30).
3. The air conditioner according to claim 2, wherein the connection assembly (10) further comprises a second connection pipe (12), the second connection pipe (12) is connected in parallel with the first connection pipe (11), a switch valve (13) is disposed on the first connection pipe (11), the switch valve (13) is used for opening when the air conditioner (100) operates in a defrosting mode to enable the first connection pipe (11) to be communicated with the liquid outlet (21) of the coil (20); the switch valve (13) is also used for closing when the air conditioner (100) exits the defrosting mode, so that the first connecting pipe (11) is cut off from the liquid outlet (21) of the coil (20).
4. The air conditioner according to claim 3, wherein the pipe diameter of the second connection pipe (12) is equal to the pipe diameter of the capillary tube (30).
5. The air conditioner according to claim 3, wherein the air conditioner (100) further comprises a temperature sensor (14), the temperature sensor (14) is disposed at the liquid outlet (21) of the coil (20) corresponding to the first connection pipe (11) and is used for detecting an outlet pipe temperature value of the heat exchange medium of the liquid outlet (21), and when the outlet pipe temperature value is greater than a preset temperature value, the on-off valve (13) is closed.
6. The air conditioner according to claim 5, wherein the connection assembly (10) further comprises a third connection pipe (15), one end of the third connection pipe (15) is connected to the corresponding liquid outlet (21) of the coil (20), the other end is connected to the first connection pipe (11) and the second connection pipe (12), and the temperature sensor (14) is disposed on the third connection pipe (15).
7. The air conditioner according to claim 6, wherein the pipe diameter of the third connection pipe (15) is equal to the pipe diameter of the capillary tube (30).
8. The air conditioner according to claim 3, wherein the connection assembly (10) further comprises a fourth connection pipe (16), the air conditioner (100) further comprises a branching body (40), one end of the capillary tube (30) away from the coil (20) is connected with the branching body (40), and the first connection pipe (11) and the second connection pipe (12) are connected with the branching body (40) through the fourth connection pipe (16).
9. The air conditioner according to claim 8, wherein a pipe diameter of the fourth connection pipe (16) is equal to a pipe diameter of the capillary tube (30).
10. Air conditioner according to claim 1, characterized in that the roughness of the inner wall of the first connection pipe (11) is less than the roughness of the inner wall of the capillary tube (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020585738.XU CN211926004U (en) | 2020-04-17 | 2020-04-17 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020585738.XU CN211926004U (en) | 2020-04-17 | 2020-04-17 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211926004U true CN211926004U (en) | 2020-11-13 |
Family
ID=73328587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020585738.XU Active CN211926004U (en) | 2020-04-17 | 2020-04-17 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211926004U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339937A (en) * | 2021-05-17 | 2021-09-03 | 广东Tcl智能暖通设备有限公司 | Defrosting control method and device for air conditioner, air conditioner and storage medium |
-
2020
- 2020-04-17 CN CN202020585738.XU patent/CN211926004U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339937A (en) * | 2021-05-17 | 2021-09-03 | 广东Tcl智能暖通设备有限公司 | Defrosting control method and device for air conditioner, air conditioner and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2295877B1 (en) | Air conditioner | |
| JP5646767B2 (en) | Refrigeration system | |
| CN111811112B (en) | Intelligent oil return multi-split air conditioner system | |
| CN104236155B (en) | Have that coolant is supercool, the defrosting air conditioning system of heat-production functions and control method thereof | |
| CN214276219U (en) | Heat exchanger and air conditioner | |
| CN217357661U (en) | Heat exchanger and air conditioner | |
| CN104879940A (en) | Air-conditioner system and control method thereof | |
| CN103411340A (en) | Outdoor heat exchanging device and defrosting method thereof | |
| CN103307820B (en) | Air-cooled outdoor air conditioner system | |
| EP3967951A1 (en) | Heat exchanger and heat pump apparatus | |
| CN211926004U (en) | Air conditioner | |
| CN206644706U (en) | Cup holder device and automobile | |
| CN105485988A (en) | Air conditioner system and defrosting control method thereof | |
| CN208186923U (en) | air conditioner | |
| CN206771795U (en) | Air-conditioning system | |
| CN105650822A (en) | Air conditioner for heat pump and defrosting method of air conditioner for heat pump | |
| EP2623872B1 (en) | Heat exchanger and air conditioner comprising the same | |
| CN205373132U (en) | Indoor temperature regulation and control system and air conditioner | |
| CN113124513B (en) | Air conditioning system and control method thereof | |
| CN106839211B (en) | Multi-split air conditioner and control method thereof in heating mode operation | |
| CN113932323B (en) | Outdoor unit of air conditioner | |
| CN209165862U (en) | The idle call circulatory system and air-conditioning | |
| CN202562152U (en) | Defrosting device applied to dehumidifier | |
| CN205448434U (en) | Adopt hot water to carry out air conditioner that defrosts | |
| CN205448416U (en) | Air conditioner of quick -witted steam defrosting in adoption air conditioning |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220930 Address after: 315191 No. 1166 Mingguang North Road, Jiangshan Town, Ningbo, Zhejiang, Yinzhou District Patentee after: NINGBO AUX ELECTRIC Co.,Ltd. Patentee after: AUX AIR CONDITIONING LIMITED BY SHARE Ltd. Address before: 315000 No.1166 Mingguang North Road, Jiangshan Town, Yinzhou District, Ningbo City, Zhejiang Province Patentee before: NINGBO AUX ELECTRIC Co.,Ltd. Patentee before: Ningbo Oxfam intelligent commercial air conditioning manufacturing Co.,Ltd. |
|
| TR01 | Transfer of patent right |