CN214501455U - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN214501455U CN214501455U CN202120371842.3U CN202120371842U CN214501455U CN 214501455 U CN214501455 U CN 214501455U CN 202120371842 U CN202120371842 U CN 202120371842U CN 214501455 U CN214501455 U CN 214501455U
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- heat exchanger
- air conditioner
- reversing port
- reversing
- outdoor heat
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Abstract
The utility model discloses an air conditioner, include: a compressor comprising an inlet and an outlet; the reversing device comprises a first reversing port, a second reversing port, a third reversing port and a fourth reversing port, wherein the first reversing port is connected with the outlet, the third reversing port is connected with the inlet, and when one of the first reversing port and the third reversing port is communicated with one of the second reversing port and the fourth reversing port, the other of the first reversing port and the third reversing port is communicated with the other of the second reversing port and the fourth reversing port; one end of the indoor heat exchanger is connected with the second reversing port; one end of the outdoor heat exchanger is connected with the fourth reversing port; a first throttling element connected between the other end of the indoor heat exchanger and the other end of the outdoor heat exchanger; and one end of the throttling device is connected with one end of the indoor heat exchanger, and the other end of the throttling device is connected with the other end of the outdoor heat exchanger. According to the utility model discloses an air conditioner can prevent that outdoor heat exchanger from frosting or slowing down the speed of frosting.
Description
Technical Field
The utility model belongs to the technical field of the air conditioner technique and specifically relates to an air conditioner is related to.
Background
When the air conditioner operates under low temperature, the outdoor heat exchanger is easy to frost. When the outdoor heat exchanger frosts to a certain degree, the air conditioner needs to melt the frost outside the outdoor side through defrosting action to ensure the operation effect of the air conditioner.
In the related art, defrosting is generally performed by switching an air conditioner to a cooling mode or turning on auxiliary heating. However, when the outdoor heat exchanger is frosted quickly, the air conditioner frequently enters the above-mentioned defrosting mode, thereby affecting the comfort of the air conditioner and shortening the service life of the air conditioner.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide an air conditioner, which can prevent the frosting of the outdoor heat exchanger or reduce the frosting speed, thereby reducing the number of times of defrosting of the air conditioner, and having high comfort and long service life.
According to the utility model discloses air conditioner, include: a compressor comprising an inlet and an outlet; the reversing device comprises a first reversing port, a second reversing port, a third reversing port and a fourth reversing port, the first reversing port is connected with the outlet, the third reversing port is connected with the inlet, and when one of the first reversing port and the third reversing port is communicated with one of the second reversing port and the fourth reversing port, the other of the first reversing port and the third reversing port is communicated with the other of the second reversing port and the fourth reversing port; one end of the indoor heat exchanger is connected with the second reversing port; one end of the outdoor heat exchanger is connected with the fourth reversing port; a first throttling element connected between the other end of the indoor heat exchanger and the other end of the outdoor heat exchanger; and one end of the throttling device is connected with the one end of the indoor heat exchanger, and the other end of the throttling device is connected with the other end of the outdoor heat exchanger.
According to the utility model discloses the air conditioner is through setting up throttling arrangement to make throttling arrangement's one end link to each other with indoor heat exchanger's one end, and throttling arrangement's the other end links to each other with outdoor heat exchanger's the other end, can effectively prevent outdoor heat exchanger frosting or slow down outdoor heat exchanger's frosting speed, thereby can effectively avoid the air conditioner to defrost the action or reduce the defrosting number of times, and then promoted the use travelling comfort of air conditioner, and prolonged the life of air conditioner.
According to some embodiments of the invention, the throttling arrangement comprises: a second throttling element, one end of which is connected with the one end of the indoor heat exchanger and the other end of which is connected with the other end of the outdoor heat exchanger; and the one-way device is connected with the second throttling element in series, and is configured to enable the refrigerant flowing through the second throttling element to flow to the outdoor heat exchanger in a one-way mode from the compressor.
According to some embodiments of the invention, the one-way device is connected between the other end of the second throttling element and the other end of the outdoor heat exchanger.
According to some embodiments of the invention, the one-way device is a one-way valve.
According to some embodiments of the invention, the one-way device is a solenoid valve.
According to some embodiments of the invention, the second throttling element is a capillary tube.
According to some embodiments of the invention, the throttling device comprises an electronic expansion valve.
According to some embodiments of the invention, the reversing device is a four-way reversing valve.
According to some embodiments of the invention, the air conditioner is a heat pump air conditioner.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of an air conditioner according to an embodiment of the present invention.
Reference numerals:
an air conditioner 1000; a compressor 1; an inlet 11; an outlet 12;
a reversing device 2; a first commutation port 21; a second commutation port 22;
a third commutation port 23; a fourth commutation port 24; an indoor heat exchanger 3;
an outdoor heat exchanger 4; a first throttling element 5; a throttle device 6;
a second throttling element 61; a one-way device 62.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.
The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.
The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.
The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.
The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.
Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.
An air conditioner 1000 according to an embodiment of the present invention is described below with reference to fig. 1.
Referring to fig. 1, an air conditioner 1000 according to an embodiment of the present invention includes a compressor 1, a reversing device 2, an indoor heat exchanger 3, an outdoor heat exchanger 4, a first throttling element 5, and a throttling device 6.
As shown in fig. 1, the compressor 1 includes an inlet 11 and an outlet 12. The reversing device 2 comprises a first reversing port 21, a second reversing port 22, a third reversing port 23 and a fourth reversing port 24, wherein the first reversing port 21 is connected with the outlet 12 of the compressor 1, and the third reversing port 23 is connected with the inlet 11 of the compressor 1. When one of the first and third diverting ports 21 and 23 communicates with one of the second and fourth diverting ports 22 and 24, the other of the first and third diverting ports 21 and 23 communicates with the other of the second and fourth diverting ports 22 and 24. One end of the indoor heat exchanger 3 is connected with a second reversing port 22 of the reversing device 2, and one end of the outdoor heat exchanger 4 is connected with a fourth reversing port 24 of the reversing device 2. The first throttling element 5 is connected between the other end of the indoor heat exchanger 3 and the other end of the outdoor heat exchanger 4, one end of the throttling means 6 is connected to the above-mentioned one end of the indoor heat exchanger 3, and the other end of the throttling means 6 is connected to the above-mentioned other end of the outdoor heat exchanger 4. The throttle device 6 is now connected in parallel with the series connection of the indoor heat exchanger 3 and the first throttle element 5.
When the air conditioner 1000 operates in the heating mode, a part of the high-temperature and high-pressure gaseous refrigerant compressed by the compressor 1 enters the reversing device 2 from the outlet 12 of the compressor 1 through the first reversing port 21 of the reversing device 2, then flows to the indoor heat exchanger 3 through the second reversing port 22, is condensed in the indoor heat exchanger 3 to release heat to be a normal-temperature and high-pressure refrigerant, is reduced in pressure by the first throttling element 5 to be in a low-temperature and low-pressure gas-liquid two-phase state, and then enters the outdoor heat exchanger 4. The other part of the high-temperature and high-pressure gaseous refrigerant compressed by the compressor 1 may flow to the throttling device 6, and the refrigerant flowing out of the throttling device 6 enters the outdoor heat exchanger 4. In the above process, since the other part of the refrigerant flowing through the throttle device 6 enters the outdoor heat exchanger 4 without condensing and releasing heat, the pressure and the temperature of the other part of the refrigerant entering the outdoor heat exchanger 4 are both high. The two portions of refrigerant absorb heat in the outdoor heat exchanger 4 and are evaporated and then return to the compressor 1 through the inlet 11.
Compared with the traditional method that the refrigerant discharged from the outlet 12 of the compressor 1 flows through the indoor heat exchanger 3 and is sent to the outdoor heat exchanger 4, in the application, a part of the refrigerant discharged from the outlet 12 of the compressor 1 is sent to the outdoor heat exchanger 4 through the throttling device 6, the total pressure and the overall temperature of all the refrigerants entering the outdoor heat exchanger 4 are higher, and therefore the evaporation temperature of the refrigerant in the outdoor heat exchanger 4 is improved. This can effectively prevent the frosting of outdoor heat exchanger 4 or slow down the frosting speed of outdoor heat exchanger 4 to can effectively avoid air conditioner 1000 to switch into the refrigeration mode or open supplementary electric heat and defrost or reduce the number of times of defrosting when the operation under the heating mode, and then promote the use travelling comfort of air conditioner 1000, and prolonged the life of air conditioner 1000. In addition, in the heating mode of the air conditioner 1000, since the refrigerant entering the indoor heat exchanger 3 is relatively reduced, the heat exchange amount of the indoor heat exchanger 3 is reduced, thereby reducing the system load of the air conditioner 1000.
From this, according to the utility model discloses air conditioner 1000 is through setting up throttling arrangement 6 to make throttling arrangement 6's one end link to each other with indoor heat exchanger 3's one end, and throttling arrangement 6's the other end links to each other with outdoor heat exchanger 4's the other end, can prevent effectively that outdoor heat exchanger 4 from frosting or slowing down outdoor heat exchanger 4's frosting speed, thereby can effectively avoid air conditioner 1000 to defrost action or reduce the defrosting number of times, and then promoted air conditioner 1000's use travelling comfort, and prolonged air conditioner 1000's life.
According to some embodiments of the present invention, the throttling device 6 comprises a second throttling element 61 and a one-way device 62. Wherein one end of the second throttling element 61 is connected to the one end of the indoor heat exchanger 3, the other end of the second throttling element 61 is connected to the other end of the outdoor heat exchanger 4, the check device 62 is connected in series with the second throttling element 61, and the check device 62 is configured to make the refrigerant flowing through the second throttling element 61 flow in one direction from the compressor 1 to the outdoor heat exchanger 4. When the air conditioner 1000 operates in the heating mode, a part of the refrigerant discharged from the outlet 12 of the compressor 1 may enter the outdoor heat exchanger 4 through the second throttling element 61 and the one-way device 62, thereby achieving the purpose of preventing or slowing down the frosting of the air conditioner 1000 in the heating mode; when the air conditioner 1000 operates in the cooling mode, due to the arrangement of the one-way device 62, the refrigerant flowing out of the outdoor heat exchanger 4 does not pass through the one-way device 62, and therefore does not directly flow to the compressor 1 through the second throttling element 61, so that the refrigerant flowing out of the outdoor heat exchanger 4 completely enters the indoor heat exchanger 3 through the first throttling element 5, and the operation effect of the air conditioner 1000 in the cooling mode is not affected. So set up, air conditioner 1000 both can realize avoiding frosting or slowing down frosting under the mode of heating, does not influence the refrigeration effect under the mode of refrigeration again.
Further, a check device 62 is connected between the other end of the second throttling element 61 and the other end of the outdoor heat exchanger 4. When the air conditioner 1000 operates in the cooling mode, since the one-way device 62 is located upstream of the second throttling element 61, it can be effectively ensured that the refrigerant flowing out of the outdoor heat exchanger 4 cannot flow through the second throttling element 61 through the one-way device 62, so that the refrigerant flowing out of the outdoor heat exchanger 4 can substantially flow to the indoor heat exchanger 3, which can further ensure that the cooling effect of the air conditioner 1000 is not affected. Of course, the present invention is not limited thereto, and for example, the check device 62 may be connected between the one end of the second throttling element 61 and the one end of the indoor heat exchanger 3.
Alternatively, as shown in FIG. 1, the one-way device 62 is a one-way valve. At this time, the cost of the check valve is low while the effect of preventing or slowing down the frosting in the heating mode of the air conditioner 1000 is ensured and the cooling effect of the air conditioner 1000 is not affected, so that the cost of the whole air conditioner 1000 can be reduced.
Or alternatively, the one-way device 62 is a solenoid valve. When the air conditioner 1000 operates in the heating mode, the electromagnetic valve may be controlled (for example, by using a remote controller of the air conditioner) to be opened, so that a part of the high-temperature and high-pressure refrigerant discharged from the outlet 12 of the compressor 1 may flow through the throttling device 6 and then enter the outdoor heat exchanger 4; when the air conditioner 1000 is operated in the cooling mode, the solenoid valve may be controlled (e.g., controlled by a remote controller) to be closed, so that the refrigerant discharged from the outdoor heat exchanger 4 does not flow to the compressor through the throttling device 6, but flows to the indoor heat exchanger 3. Of course, it can be understood that, when the air conditioner 1000 operates in the heating mode, a user may selectively control the opening and closing of the electromagnetic valve, for example, the user may selectively control the closing of the electromagnetic valve, so that all the refrigerant discharged from the compressor 1 may flow to the indoor heat exchanger 3, thereby improving the heating effect of the air conditioner 1000; when the air conditioner 1000 operates in the heating mode, a user may select the control solenoid valve to be opened, thereby achieving the purpose of preventing or slowing down the frosting of the outdoor heat exchanger 4. Thus, by providing the one-way device 62 as an electromagnetic valve, the air conditioner 1000 can avoid or slow down frost formation, and can flexibly select the on/off of the one-way device 62 according to actual needs, without affecting the effect of the cooling mode of the air conditioner 1000.
According to some alternative embodiments of the present invention, the second throttling element 61 is a capillary tube. Because the pipe diameter of the capillary tube is small, when the air conditioner 1000 operates in the heating mode, only a small part of the refrigerant discharged from the compressor 1 flows through the capillary tube, and most of the refrigerant discharged from the compressor 1 flows through the indoor heat exchanger 3, so that the aim of avoiding frosting or slowing down frosting in the heating mode of the air conditioner 1000 is fulfilled, and the heating effect of the air conditioner 1000 is not influenced.
According to other alternative embodiments of the present invention, the throttling means 6 comprise an electronic expansion valve. The opening degree of the electronic expansion valve may be controlled (e.g., by a remote control). Therefore, on one hand, the electronic expansion valve can be controlled to be opened and closed, so that the refrigerant flows through the throttling device 6 when the air conditioner 1000 is in the heating mode, and the refrigerant does not flow through the throttling device 6 when the air conditioner 1000 is in the cooling mode; on the other hand, the opening degree of the electronic expansion valve can be controlled, so that when the air conditioner 1000 operates in the heating mode, the amount of refrigerant flowing through the throttling device 6 can be flexibly adjusted according to actual conditions (such as outdoor temperature and the like), and further, the outdoor heat exchanger 4 of the air conditioner 1000 is not frosted or frosting is slowed down.
According to some embodiments of the present invention, the reversing device 2 is a four-way reversing valve. Therefore, the four-way reversing valve can change the flow direction of the refrigerant, so that the indoor heat exchanger 3 and the outdoor heat exchanger 4 of the air conditioner 1000 are switched between the condenser and the evaporator, and the switching between the cooling mode and the heating mode of the air conditioner 1000 is realized.
Optionally, the air conditioner 1000 is a heat pump air conditioner 1000. The heat pump air conditioner 1000 has a simple structure, is convenient to control, and has low cost. Of course, the present invention is not limited thereto.
Other configurations and operations of the air conditioner 1000 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description herein, references to the description of the term "some embodiments" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. An air conditioner, comprising:
a compressor comprising an inlet and an outlet;
the reversing device comprises a first reversing port, a second reversing port, a third reversing port and a fourth reversing port, the first reversing port is connected with the outlet, the third reversing port is connected with the inlet, and when one of the first reversing port and the third reversing port is communicated with one of the second reversing port and the fourth reversing port, the other of the first reversing port and the third reversing port is communicated with the other of the second reversing port and the fourth reversing port;
one end of the indoor heat exchanger is connected with the second reversing port;
one end of the outdoor heat exchanger is connected with the fourth reversing port;
a first throttling element connected between the other end of the indoor heat exchanger and the other end of the outdoor heat exchanger;
and one end of the throttling device is connected with the one end of the indoor heat exchanger, and the other end of the throttling device is connected with the other end of the outdoor heat exchanger.
2. The air conditioner according to claim 1, wherein said throttling means comprises:
a second throttling element, one end of which is connected with the one end of the indoor heat exchanger and the other end of which is connected with the other end of the outdoor heat exchanger;
and the one-way device is connected with the second throttling element in series, and is configured to enable the refrigerant flowing through the second throttling element to flow to the outdoor heat exchanger in a one-way mode from the compressor.
3. The air conditioner according to claim 2, wherein the one-way device is connected between the other end of the second throttling element and the other end of the outdoor heat exchanger.
4. The air conditioner according to claim 2, wherein said check means is a check valve.
5. The air conditioner according to claim 2, wherein said check means is a solenoid valve.
6. The air conditioner according to claim 2, wherein the second throttling element is a capillary tube.
7. The air conditioner of claim 1, wherein said throttling means comprises an electronic expansion valve.
8. The air conditioner according to any one of claims 1 to 7, wherein the reversing device is a four-way reversing valve.
9. An air conditioner according to any one of claims 1 to 7, wherein the air conditioner is a heat pump air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120371842.3U CN214501455U (en) | 2021-02-09 | 2021-02-09 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120371842.3U CN214501455U (en) | 2021-02-09 | 2021-02-09 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214501455U true CN214501455U (en) | 2021-10-26 |
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ID=78220109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120371842.3U Active CN214501455U (en) | 2021-02-09 | 2021-02-09 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214501455U (en) |
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2021
- 2021-02-09 CN CN202120371842.3U patent/CN214501455U/en active Active
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