Air conditioning system capable of reducing frosting through heating and air conditioner with air conditioning system

Abstract

The utility model discloses an air-conditioning system capable of reducing frosting through heating and an air conditioner with the air-conditioning system, relates to the technical field of air-conditioning systems, and can prevent an outdoor heat exchanger from frosting or prolong the time required by frosting of an outdoor unit. An air conditioning system capable of reducing frosting through heating comprises a compressor, a four-way valve, an indoor heat exchanger, an outdoor heat exchanger, a gas-liquid separator and a heating pipeline. Two ends of the heating pipeline are respectively connected with the input end of the indoor heat exchanger and the input end of the outdoor heat exchanger. And the heating pipeline can directly introduce a high-temperature refrigerant output by the compressor into the input end of the outdoor heat exchanger. The high-temperature refrigerant output by the compressor is directly transferred to the input end of the outdoor heat exchanger through the temperature rising pipeline, the inlet pipe temperature of the outdoor heat exchanger is increased, then the outdoor heat exchanger can be prevented from frosting, or the frosting speed of the outdoor heat exchanger is reduced, and the heating time is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning systems, and in particular to an air conditioning system capable of heating and reducing frost, and an air conditioner having the same. Background Art

[0002] When existing air conditioners are heating, they cannot accurately estimate the risk of frost and frost is likely to form quickly. At this time, the air conditioner will suspend heating to remove the frost, causing the heating capacity to decrease and affecting the user experience. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide an air-conditioning system for heating and reducing frosting and an air-conditioning having the same, which can prevent frost on an outdoor heat exchanger or extend the time required for frost formation on an outdoor unit.

[0004] According to the first aspect of the utility model, there is provided an air-conditioning system for heating and reducing frost, comprising a compressor, a four-way valve, an indoor heat exchanger, an outdoor heat exchanger, a gas-liquid separator and a heating pipeline, wherein both ends of the heating pipeline are respectively connected to an input end of the indoor heat exchanger and an input end of the outdoor heat exchanger, and the heating pipeline can directly introduce the high-temperature refrigerant output by the compressor into the input end of the outdoor heat exchanger.

[0005] According to an embodiment of the utility model, an air conditioning system for heating and reducing frosting has at least the following beneficial effects: an air conditioning system for heating and reducing frosting includes a compressor, a four-way valve, an indoor heat exchanger, an outdoor heat exchanger, a gas-liquid separator, and a heating pipeline. The two ends of the heating pipeline are respectively connected to the input end of the indoor heat exchanger and the input end of the outdoor heat exchanger. The heating pipeline can directly introduce the high-temperature refrigerant output by the compressor into the input end of the outdoor heat exchanger. The high-temperature refrigerant output by the compressor is directly transferred to the input end of the outdoor heat exchanger through the heating pipeline, increasing the inlet pipe temperature of the outdoor heat exchanger, thereby avoiding frosting of the outdoor heat exchanger, or reducing the speed of frosting of the outdoor heat exchanger, thereby improving the heating time.

[0006] According to the utility model, a heating and frosting-reducing air-conditioning system also includes a pipeline control system, which can control the switch of the air-conditioning system and the switch of the heating pipeline.

[0007] According to the utility model, an air-conditioning system for heating and reducing frost, the pipeline control system includes a first electronic expansion valve and a second electronic expansion valve, the first electronic expansion valve is arranged between the indoor heat exchanger and the outdoor heat exchanger, and the second electronic expansion valve is arranged on the heating pipeline. The first electronic expansion valve can adjust the switch and flow size of the air-conditioning system, and the second electronic expansion valve can adjust the switch and flow size of the heating pipeline.

[0008] According to the utility model of an air conditioning system for heating and reducing frosting, the pipeline control system also includes an exhaust pressure sensor, which is arranged at the output end of the compressor and is used to detect the exhaust pressure of the compressor.

[0009] According to the utility model, a heating and frosting-reducing air-conditioning system, the pipeline control system also includes an outdoor air inlet temperature sensing package, an outdoor air inlet humidity sensor and an outdoor inlet pipe temperature sensing package, the outdoor air inlet temperature sensing package and the outdoor air inlet humidity sensor are both arranged on the outdoor heat exchanger, and the outdoor inlet pipe temperature sensing package is arranged on the outdoor heat exchanger and is located at the input end of the outdoor heat exchanger.

[0010] According to a second aspect of the present invention, an air conditioner is provided, comprising an air conditioning system for heating and reducing frost according to the first aspect.

[0011] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0013] Figure 1 This is a schematic diagram of the pipeline of a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0014] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0015] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0016] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0017] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0018] Reference Figure 1 A heating and frosting-reducing air conditioning system includes a compressor 10, a four-way valve 20, an indoor heat exchanger 30, an outdoor heat exchanger 40, a gas-liquid separator 50, and a heating pipeline 60. The two ends of the heating pipeline 60 are respectively connected to the input end of the indoor heat exchanger 30 and the input end of the outdoor heat exchanger 40. The heating pipeline 60 can directly introduce the high-temperature refrigerant output by the compressor 10 into the input end of the outdoor heat exchanger 40.

[0019] It is worth noting that in an air-conditioning system of the utility model for heating and reducing frost, the pipeline connection in the heating mode is: the output end of the compressor 10 is connected to the indoor heat exchanger 30 through the four-way valve 20, the output end of the indoor heat exchanger 30 is connected to the outdoor heat exchanger 40, the output end of the outdoor heat exchanger 40 is connected to the four-way valve 20 and then connected to the gas-liquid separator 50 through another pipeline output end of the four-way valve 20, and the gas-liquid separator 50 is connected to the input end of the compressor 10.

[0020] It can be understood that the high-temperature refrigerant output by the compressor 10 is directly transferred to the input end of the outdoor heat exchanger 40 through the heating pipeline 60, thereby increasing the inlet pipe temperature of the outdoor heat exchanger 40, thereby avoiding frosting of the outdoor heat exchanger 40, or reducing the frosting speed of the outdoor heat exchanger 40, thereby improving the heating time.

[0021] Reference Figure 1 , a heating and frosting-reducing air conditioning system further includes a pipeline control system 70. The pipeline control system 70 can control the switch of the air conditioning system and the switch of the heating pipeline 60.

[0022] It is understandable that in some embodiments of the present invention, the heating pipeline and the temperature-raising pipeline 60 of the air conditioner are regulated by the pipeline control system 70 .

[0023] Reference Figure 1The pipeline control system 70 includes a first electronic expansion valve 71 and a second electronic expansion valve 72. The first electronic expansion valve 71 is arranged between the indoor heat exchanger 30 and the outdoor heat exchanger 40. The second electronic expansion valve 72 is arranged on the heating pipeline 60. The first electronic expansion valve 71 can adjust the switch and flow size of the air conditioning system. The second electronic expansion valve 72 can adjust the switch and flow size of the heating pipeline 60.

[0024] It can be understood that the power of the heating pipeline of the air-conditioning system can be adjusted by adjusting the opening of the first electronic expansion valve 71, and the power of the heating pipeline 60 can be adjusted by adjusting the opening of the second electronic expansion valve 72, thereby ensuring the heating effect while avoiding rapid frosting of the outdoor heat exchanger 40.

[0025] Reference Figure 1 The pipeline control system 70 further includes an exhaust pressure sensor 73. The exhaust pressure sensor 73 is disposed at the output end of the compressor 10. The exhaust pressure sensor 73 is used to detect the exhaust pressure of the compressor 10. When the exhaust pressure detected by the exhaust pressure sensor 73 is not greater than the set value, the frequency of the compressor 10 is not allowed to be reduced.

[0026] It can be understood that in some embodiments of the present invention, the data detected by the exhaust pressure sensor 73 can be fed back to the control of the heating pipeline, and a pressure parameter can be set by technical personnel in this field as needed. When the exhaust pressure detected by the exhaust pressure sensor 73 is not greater than the set pressure parameter, the compressor 10 is not allowed to reduce the frequency, thereby improving the heating management effect.

[0027] Reference Figure 1 The pipeline control system 70 further includes an outdoor air inlet temperature sensing package 74, an outdoor air inlet humidity sensor 75, and an outdoor inlet pipe temperature sensing package 76. The outdoor air inlet temperature sensing package 74 and the outdoor air inlet humidity sensor 75 are both disposed on the outdoor heat exchanger 40. The outdoor inlet pipe temperature sensing package 76 is disposed on the outdoor heat exchanger 40 and is located at the input end of the outdoor heat exchanger 40.

[0028] It is understandable that the outdoor air inlet temperature sensing package 74 can detect the outdoor fan air inlet temperature, the outdoor air inlet humidity sensor 75 can detect the outdoor air inlet relative humidity, and the outdoor inlet pipe temperature sensing package 76 can detect the refrigerant inlet pipe temperature of the outdoor heat exchanger 40. The outdoor dew point temperature can be converted according to the outdoor fan air inlet temperature and the outdoor air inlet relative humidity (the conversion method is shown in Table 1). When the outdoor dew point temperature is greater than or equal to the refrigerant inlet pipe temperature of the outdoor heat exchanger 40, the operating frequency of the compressor 10 is reduced. When the exhaust pressure of the compressor 10 detected by the exhaust pressure sensor 73 is less than or equal to the set value, it is not allowed to reduce the operating frequency of the compressor 10. When the outdoor dew point temperature is less than the refrigerant inlet pipe temperature of the outdoor heat exchanger 40, the operating frequency of the compressor 10 is restored to normal control.

[0029]

[0030] Furthermore, in this embodiment, when it is detected that the outdoor dew point temperature is greater than or equal to the refrigerant inlet pipe temperature of the outdoor heat exchanger 40, and the exhaust pressure of the compressor 10 is greater than the set value and the operating frequency of the compressor 10 is less than the minimum operating frequency of the compressor 10, the second electronic expansion valve 72 is opened to deliver the high-temperature refrigerant output by the compressor 10 to the outdoor heat exchanger 40, thereby increasing the inlet pipe temperature of the outdoor heat exchanger 40, thereby extending the frosting time of the outdoor heat exchanger 40, or avoiding frosting of the outdoor heat exchanger 40.

[0031] Furthermore, the second aspect of the present invention is an air conditioner, comprising the first aspect of the air conditioner system for heating and reducing frost.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An air conditioning system for heating and reducing frosting, characterized in that: include: A compressor (10), a four-way valve (20), an indoor heat exchanger (30), an outdoor heat exchanger (40), a gas-liquid separator (50) and a heating pipeline (60), wherein the two ends of the heating pipeline (60) are respectively connected to the input end of the indoor heat exchanger (30) and the input end of the outdoor heat exchanger (40), and the heating pipeline (60) can directly introduce the high-temperature refrigerant output by the compressor (10) into the input end of the outdoor heat exchanger (40).

2. The air conditioning system for heating and reducing frosting according to claim 1, characterized in that: It also includes a pipeline control system (70), and the pipeline control system (70) can control the switch of the air conditioning system and the switch of the temperature increase pipeline (60).

3. The air conditioning system for heating and reducing frosting according to claim 2, characterized in that: The pipeline control system (70) comprises a first electronic expansion valve (71) and a second electronic expansion valve (72); the first electronic expansion valve (71) is arranged between the indoor heat exchanger (30) and the outdoor heat exchanger (40); the second electronic expansion valve (72) is arranged on the heating pipeline (60); the first electronic expansion valve (71) can adjust the switch and flow rate of the air-conditioning system; the second electronic expansion valve (72) can adjust the switch and flow rate of the heating pipeline (60).

4. The air conditioning system for heating and reducing frosting according to claim 3, characterized in that: The pipeline control system (70) further comprises an exhaust pressure sensor (73), wherein the exhaust pressure sensor (73) is arranged at the output end of the compressor (10), and the exhaust pressure sensor (73) is used to detect the exhaust pressure of the compressor (10).

5. The air conditioning system for heating and reducing frosting according to claim 3, characterized in that: The pipeline control system (70) further comprises an outdoor air inlet temperature sensing package (74), an outdoor air inlet humidity sensor (75) and an outdoor inlet pipe temperature sensing package (76); the outdoor air inlet temperature sensing package (74) and the outdoor air inlet humidity sensor (75) are both arranged on the outdoor heat exchanger (40); and the outdoor inlet pipe temperature sensing package (76) is arranged on the outdoor heat exchanger (40) and is located at the input end of the outdoor heat exchanger (40).

6. An air conditioner, characterized in that: An air conditioning system for heating and reducing frosting comprising the heating and reducing frosting system as described in any one of claims 1 to 5.

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