Heat exchange system and air conditioner

Abstract

The utility model relates to the technical field of air conditioners, and provides a heat exchange system and an air conditioner, the heat exchange system comprises a compressor, an indoor unit and a hose, the indoor unit is provided with a first heat exchanger, and the first heat exchanger is connected with an outlet of the compressor for heating; and the hose is connected between the outlet of the first heat exchanger and the inlet of the compressor, is arranged outside the heat exchange system and is configured to cool the external device. When the system is in a heating mode, a high-temperature and high-pressure refrigerant output by the compressor flows into the first heat exchanger, heat is released through the first heat exchanger, and indoor heating is achieved. And meanwhile, after the first heat exchanger is used for heating, the low-temperature refrigerant at the outlet is guided to the external device through the hose, and the low-temperature refrigerant absorbs heat of the external device when flowing through the hose, so that the external device is cooled, multiple purposes are achieved, the diversified requirements of users in different scenes are met, and the use scenes of the air conditioning equipment are expanded.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of air conditioners, and particularly relates to a heat exchange system and an air conditioner. BACKGROUND

[0002] In the related art, air conditioners such as ceiling air conditioners are integrated heat exchangers, and can only select independent refrigeration or heating, so the use scenarios are single, and it is difficult to meet the flexible use requirements of users on air conditioning equipment in different environments and needs. CONTENT OF THE UTILITY MODEL

[0003] Embodiments of the application provide a heat exchange system and an air conditioner to solve the problem of single use scenario of the existing air conditioner.

[0004] In a first aspect, embodiments of the application provide a heat exchange system, comprising:

[0005] a compressor;

[0006] an indoor unit provided with a first heat exchanger, the first heat exchanger being connected to an outlet of the compressor for heating;

[0007] a hose connected between an outlet of the first heat exchanger and an inlet of the compressor and externally arranged on the heat exchange system, configured to cool an external device.

[0008] In some embodiments of the application, the outlet of the first heat exchanger is provided with a main path and a branch path connected in parallel with each other, the hose is arranged on the branch path, and a pulse throttle valve is arranged at a front end of the hose, the pulse throttle valve being used to reduce the refrigerant pressure of the branch path.

[0009] In some embodiments of the application, the branch path is further provided with:

[0010] a pressure detection device used to detect the refrigerant pressure of the branch path;

[0011] an on-off device used to control the opening and closing of the branch path.

[0012] In some embodiments of the application, a pulse jet valve is arranged at a front end of the first heat exchanger, the pulse jet valve being used to adjust the refrigerant flow through the first heat exchanger.

[0013] And / or, a one-way valve is arranged on the branch path, the one-way valve being used to control the refrigerant to flow only from the branch path to the compressor.

[0014] In some embodiments of the application, the indoor unit is further provided with:

[0015] a first air outlet, the first heat exchanger being arranged corresponding to the first air outlet;

[0016] A second air outlet, which is different from the first air outlet in direction;

[0017] A second heat exchanger, which is connected with the outlet of the compressor for refrigeration, and which corresponds to the second air outlet.

[0018] In some embodiments of the present application, the heat exchange system further comprises a mixing device, which has a mixing cavity, the inlet of the mixing cavity being connected with the outlets of the first heat exchanger and the second heat exchanger, and the outlet of the mixing cavity being connected with the inlet of the compressor.

[0019] In some embodiments of the present application, the heat exchange area of the first heat exchanger is smaller than that of the second heat exchanger.

[0020] In some embodiments of the present application, the front end of the second heat exchanger is provided with a condenser and a throttling device.

[0021] In some embodiments of the present application, the first air outlet is provided with a guide air duct, the guide air duct being provided with a fan, and the air outlet angle of the guide air duct being adjustable.

[0022] In some embodiments of the present application, the guide air duct is provided with a light sensor, which is used to indicate the air supply area of the guide air duct.

[0023] In some embodiments of the present application, the end of the guide air duct is provided with a temperature detection device.

[0024] In the second aspect, the embodiments of the present application further provide an air conditioner, which comprises the heat exchange system described in the above embodiments.

[0025] The heat exchange system provided by the embodiments of the present application comprises a compressor, an indoor unit and a hose. The indoor unit is provided with a first heat exchanger, which is connected with the outlet of the compressor for heating. The hose is connected between the outlet of the first heat exchanger and the inlet of the compressor, and the hose is externally arranged on the heat exchange system and configured to cool external devices. When the system is in a heating mode, high-temperature and high-pressure refrigerant output by the compressor flows into the first heat exchanger, and heat is released through the first heat exchanger to achieve indoor heating. At the same time, the low-temperature refrigerant at the outlet after heating by the first heat exchanger is guided to external devices through the hose, and the low-temperature refrigerant absorbs heat of the external devices when flowing through the hose, thereby achieving cooling of the external devices. Thus, one machine is used for multiple purposes, and the diversified needs of users in different scenarios are met, and the use scenarios of air conditioning equipment are expanded.

[0026] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0029] Figure 1 This is a schematic diagram of the heat exchange system provided in an embodiment of this application.

[0030] Figure 2 A schematic diagram of the structure of the indoor unit provided in the embodiment of this application.

[0031] Figure 3 This is a schematic diagram of the heat exchange system provided in the embodiments of this application.

[0032] Figure 4 A schematic diagram of the optical fitting of the air duct provided in the embodiment of this application.

[0033] Figure 5 This is a schematic diagram of the structure of an air conditioning device in the prior art.

[0034] Figure label:

[0035] 100. Compressor;

[0036] 200. Indoor unit; 210. First heat exchanger; 211. Main circuit; 212. Branch circuit; 213. Pulse throttle valve; 214. Pressure detection device; 215. Opening and closing device; 216. Pulse jet valve; 217. Check valve; 201. First air outlet; 202. Second air outlet; 220. Second heat exchanger; 203. Air duct; 204. Fan; 205. Photosensitive lamp; 206. Temperature detection device;

[0037] 300. Hose;

[0038] 400. Mixing device;

[0039] 500. Condenser;

[0040] 600. Throttling device. Detailed Implementation

[0041] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0042] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0044] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0045] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0046] In the related art, air conditioners such as ceiling air conditioners are integrated heat exchangers, and can only select cooling or heating, and the use scene is single. However, different users have different perceptions of temperature, for example, when most people feel that the air conditioner temperature is appropriate, the elderly and children may feel cold. The existing air conditioner is difficult to meet the flexible use requirements of users on the air conditioning equipment in different environments and needs.

[0047] Reference Figure 5 As shown in FIG. 1, the traditional ceiling air conditioner is installed in a ceiling type, and air is discharged in four directions. Because the structure is an integrated heat exchanger, the temperature of the air discharged in four directions is basically the same, and only cooling or heating can be selected. Once there are multiple temperature requirements in the room (for example, when some people feel hot and some people feel cold), the user experience cannot be met.

[0048] Embodiments of the present application provide a heat exchange system and an air conditioner to solve the problem of single use scene of the existing air conditioning equipment. The following will be described in conjunction with the accompanying drawings. Figures 1-4 The arrow direction in the figure is the flow direction of the refrigerant.

[0049] The heat exchange system provided by the embodiments of the present application, as shown in FIG. 2, includes a compressor 100, an indoor unit 200, and a hose 300. The indoor unit 200 is provided with a first heat exchanger 210, and the first heat exchanger 210 is connected with the outlet of the compressor 100 for heating. The hose 300 is connected between the outlet of the first heat exchanger 210 and the inlet of the compressor 100, and the hose 300 is externally arranged in the heat exchange system and is configured to cool the external device. Figures 1-3 It can be understood that in the embodiment, the compressor 100 is used to compress the low-temperature and low-pressure refrigerant into a high-temperature and high-pressure state to provide power for the entire heat exchange system. The indoor unit 200 is provided with a first heat exchanger 210, and when the high-temperature and high-pressure refrigerant flows through the first heat exchanger 210, the refrigerant releases heat to heat the indoor air. The hose 300 is connected to the outlet end of the first heat exchanger 210, that is, the low-temperature refrigerant after heating by the first heat exchanger 210 can be transported back to the compressor 100 through the hose 300 for the next cycle.

[0050] Optionally, the hose 300 can be PVC, rubber, silicone or other materials, and has good deformation ability. When not in use, the hose 300 can be neatly stored, and when needed, the hose 300 can be quickly arranged and placed on the external device to achieve rapid and effective cooling.

[0051]

[0052] ​The hose 300 of the embodiment has better deformation ability than traditional metal pipes, so that the hose 300 has very high flexibility and adaptability when arranged. For example, in summer, the surface temperature of furniture such as sofas and rocking chairs in the room is relatively high, and people sitting on them can easily feel hot and even have wet backs. By using the deformable property of the hose 300, the hose 300 can be cleverly arranged inside or at the bottom of the sofa or rocking chair, and under the premise of safety, the hose 300 can effectively reduce the surface temperature of the furniture and provide a cool and comfortable use experience. In winter, the hose 300 can also be used to cool the external device that needs to be cooled during the heating process of the air conditioning equipment.

[0053] In some embodiments, the hose 300 can be arranged on the external device. In other embodiments, the hose 300 can also be arranged opposite to the external device, that is, heat exchange is realized by heat radiation to cool the external device.

[0054] In some optional embodiments, the beverages and food on the dining table and the living room table can easily heat up due to high temperature, affecting the taste and eating experience. At this time, the low-temperature hose 300 can be arranged under the dining table and the living room table to form an effective cooling area. In this way, the beverages and food placed on the table can maintain a relatively low temperature, prolong the preservation time, and improve the eating experience. In other optional embodiments, the user can adjust the arrangement position and form of the hose 300 at any time according to actual needs to realize flexible arrangement of the hose 300 and cooling of other external devices.

[0055] When the system is in the heating mode, the high-temperature and high-pressure refrigerant output by the compressor 100 flows into the first heat exchanger 210, releases heat through the first heat exchanger 210, and realizes indoor heating. At the same time, the low-temperature refrigerant outlet from the heat exchanger after heating is guided to the external device through the hose 300, and the low-temperature refrigerant absorbs the heat of the external device when flowing through the hose 300, thereby realizing cooling of the external device. One machine realizes multiple uses, meets the diversified needs of users in different scenarios, and expands the use scenarios of the air conditioning equipment.

[0056] The refrigeration equipment of the embodiment breaks the limitation of traditional air conditioners that can only adjust the indoor air temperature, realizes direct cooling of furniture, articles, and the like, expands the function and application range of the air conditioner, realizes efficient use of energy by reasonably using the low-temperature refrigerant after heating of the first heat exchanger 210, and is energy-saving and environmentally friendly.

[0057] In an optional embodiment, the hose 300 is combined with a cooling device. Figure 1 and Figure 3As shown, the outlet of the first heat exchanger 210 is provided with a main line 211 and a branch line 212 connected in parallel. The hose 300 is provided in the branch line 212, and the front end of the hose 300 is provided with a pulse throttle valve 213. The pulse throttle valve 213 is used to reduce the refrigerant pressure in the branch line 212.

[0058] In this embodiment, the refrigerant flowing out of the first heat exchanger 210 is divided into two paths at the outlet: the main path 211 and the branch path 212. The main path 211 primarily delivers most of the refrigerant directly back to the compressor 100, maintaining the main heating cycle of the system. A small portion of the refrigerant enters the hose 300 through the branch path 212, cooling external devices via the hose 300. A pulse throttle valve 213 is installed in the branch path 212, located at the front end of the hose 300. Through throttling, it reduces the refrigerant pressure in the branch path 212, ensuring that the refrigerant flows into the hose 300 in a safe and stable low-pressure state, avoiding potential damage to the hose 300 caused by high-pressure refrigerant and preventing refrigerant leakage. Furthermore, the pulse throttle valve 213 allows for easy adjustment of the pulse opening time; the pulse opening time can be set sufficiently short as needed, and the opening cycle can be extended. The segmented pulse time design provides the system with additional reaction time, enabling rapid valve closure upon detection of a leak to prevent further leakage.

[0059] For example, if the pulse throttle valve 213 can reduce the refrigerant pressure to A, then the hose 300 can be customized to have a pressure-bearing capacity much higher than A, ensuring that the hose 300 will not be damaged due to pressure issues during normal use and guaranteeing the reliability of the hose 300's pressure bearing capacity.

[0060] In one alternative implementation, refer to Figure 1 and Figure 3 As shown, branch 212 is also equipped with a pressure detection device 214 and an opening and closing device 215. The pressure detection device 214 is used to detect the refrigerant pressure of branch 212; the opening and closing device 215 is used to control the on and off of branch 212.

[0061] In this embodiment, the pressure detection device 214 can monitor the refrigerant pressure in branch 212 in real time to ensure that the system operates within a safe range. Once an abnormal pressure is detected, the system can immediately issue an early warning and take corresponding measures to prevent accidents from occurring.

[0062] The opening and closing device 215 is located at the front end of the hose 300 and can control the opening and closing of the branch 212 according to the instructions of the control system or the manual adjustment by the user.

[0063] In one alternative implementation, refer to Figure 1 As shown, a pulse jet valve 216 is provided at the front end of the first heat exchanger 210. The pulse jet valve 216 is used to regulate the flow rate of the refrigerant flowing through the first heat exchanger 210.

[0064] In this embodiment, the pulse jet valve 216 controls the flow rate of refrigerant into the low-pressure heat exchanger by pulse-like opening and closing, thereby regulating the heating capacity. Optionally, the opening cycle of the pulse jet valve 216 can be adjusted according to a preset temperature, or the opening cycle of the pulse jet valve 216 can be determined according to the user's sensation for pulse regulation.

[0065] For example, when a user feels the temperature in the heated area is too low, the opening time of the pulse jet valve 216 can be increased (e.g., from 2 seconds on and 8 seconds off within the original 10 seconds to 5 seconds on and 5 seconds off), thereby increasing the refrigerant flow and improving the heating effect. Conversely, when a user feels too hot, the opening time of the pulse valve can be reduced to decrease the refrigerant flow and heating intensity. Adjusting the heating effect based on the user's actual comfort level ensures that the indoor temperature better meets the user's comfort needs. This real-time adjustment avoids the overheating or overcooling phenomena that can occur with traditional fixed temperature settings.

[0066] In one alternative implementation, refer to Figure 3 As shown, a one-way valve 217 is installed on branch 212. The one-way valve 217 controls the refrigerant flow to the compressor 100 only from branch 212. This effectively prevents refrigerant from the main line 211 from entering branch 212, ensuring that the refrigerant flow direction always meets design requirements. It avoids interference between different flow paths, enhances system stability, reduces potential failure risks caused by refrigerant backflow, and improves the reliability and service life of the heat exchange system.

[0067] In some embodiments of this application, combined with Figure 1 and Figure 2 As shown, the indoor unit 200 is also provided with a first air outlet 201, a second air outlet 202, and a second heat exchanger 220. The second air outlet 202 has a different orientation from the first air outlet 201. The first heat exchanger 210 is provided corresponding to the first air outlet 201. The second heat exchanger 220 is connected to the outlet of the compressor 100 for cooling, and the second heat exchanger 220 is provided corresponding to the second air outlet 202.

[0068] Traditional air conditioning equipment can only select either cooling or heating. In this embodiment, the first air outlet 201 is a warm air outlet, and the second air outlet 202 is a cold air outlet. By setting multiple air outlets and multiple heat exchangers, simultaneous cooling and heating can be achieved, meeting the temperature requirements of different areas. The air outlets with different orientations allow users to direct airflow according to their actual needs. Users can set different temperature modes according to their personal preferences and actual needs, realizing a personalized temperature control experience and improving comfort.

[0069] By setting up a first heat exchanger 210, a second heat exchanger 220, and a hose 300, multi-functional control of the cooling temperature field, the heating temperature field, and the cooling of external devices is achieved, greatly expanding the application scenarios of air conditioning equipment.

[0070] Optionally, the number of first air outlets 201 and second air outlets 202 can be one or more. Taking a four-way air outlet ceiling unit as an example, the number of first air outlets 201 can be one, and the other three can be second air outlets 202, so as not to affect the temperature of most of the room and to ensure the balance between the temperature fields.

[0071] In one alternative implementation, refer to Figure 1 As shown, the heat exchange system also includes a mixing device 400, which has a mixing chamber. The inlet of the mixing chamber is connected to the outlet of the first heat exchanger 210 and the second heat exchanger 220, and the outlet of the mixing chamber is connected to the inlet of the compressor 100.

[0072] In this embodiment, the refrigerants at the outlets of the first heat exchanger 210 and the second heat exchanger 220 are mixed in the mixing chamber. The mixed refrigerant flows out of the mixing chamber and into the compressor 100, completing the cycle. The design of the mixing chamber ensures that the refrigerants from different heat exchangers are uniformly mixed, avoiding fluctuations in refrigerant temperature and pressure. Uniform refrigerant mixing is beneficial to the stable operation of the compressor 100, reducing load fluctuations caused by uneven refrigerant distribution, reducing operating energy consumption, and achieving energy-saving operation. Furthermore, the mixing chamber design allows for smoother switching between cooling and heating modes, adapting to different operating conditions.

[0073] In one alternative implementation, refer to Figure 2 As shown, the heat exchange area of ​​the first heat exchanger 210 is smaller than that of the second heat exchanger 220.

[0074] Because the heat exchanger 210 has a small heat exchange area, it mainly plays a role in localized or auxiliary heating in the heating flow path. This design limits the impact of the heating flow path on the overall room temperature, focusing on the heating temperature field needs of specific areas. Due to the small heat exchange area of ​​the first heat exchanger 210, it does not significantly change the overall room temperature during heating, thus ensuring a balanced temperature field.

[0075] In one alternative implementation, refer to Figure 1As shown, the front end of the second heat exchanger 220 is provided with a condenser 500 and a throttling device 600. Part of the refrigerant from the outlet of the compressor 100 enters the heating flow path, and the other part enters the condenser 500 in the cooling flow path. The condenser 500 is used to cool the refrigerant from a gaseous state to a liquid state and release heat. The throttling device 600 is used to further reduce the temperature and pressure of the refrigerant to prepare it for entering the second heat exchanger 220.

[0076] In one optional implementation, combined with Figure 2 and Figure 4 As shown, the first air outlet 201 is provided with an air guide duct 203, and a fan 204 is installed inside the air guide duct 203. The air outlet angle of the air guide duct 203 is adjustable.

[0077] In this embodiment, the air guide duct 203 is used to guide the warm air flowing out of the first air outlet 201, ensuring that the warm air is distributed to the required area. A fan 204 is installed inside the air guide duct 203, which can enhance the airflow velocity at the air outlet and improve air delivery efficiency. The air guide duct 203 can be a omnidirectional duct, meaning its airflow direction can be adjusted by rotation in any direction. Users can manually rotate the air guide duct 203 to change the airflow direction, or remotely control the rotation of the air guide duct 203 via a multi-directional adjustment motor to achieve precise adjustment of the airflow direction, thereby adjusting the heating temperature field to the position required by the user.

[0078] In one optional implementation, combined with Figure 2 and Figure 4 As shown, the air duct 203 is equipped with a photosensitive lamp 205, which is used to indicate the air delivery area of ​​the air duct 203.

[0079] In this embodiment, the photosensitive lamp 205 is installed at an appropriate location in the air duct 203. The specific installation location can be determined through experimental optimization. The light emitted by the photosensitive lamp 205 can be projected onto the ground or wall to indicate the air delivery area of ​​the air duct 203. By fitting the air field with light, it helps users intuitively understand the location of the air field. Users can adjust the position of the light to specify the desired warm air temperature field location, achieving more precise and personalized temperature control.

[0080] In one alternative implementation, refer to Figure 4 As shown, a temperature detection device 206 is installed at the end of the air duct 203. The temperature monitoring device is used to monitor the air temperature at the end of the air duct 203 to ensure that the supply air temperature meets the set requirements. Based on the received temperature data, the heat exchange system can adjust the supply air parameters.

[0081] In some implementations, combined Figure 2 and Figure 4As shown, the indoor unit 200 is also equipped with an air outlet control scheme. When the user adjusts the air duct 203 of the first air outlet 201 so that the air duct 203 is directed toward a certain second air outlet 202, the air guide plate of the second air outlet 202 can be adjusted to the minimum angle. At the same time, the swing valve is adjusted so that the air outlet direction of the second air outlet 202 is away from the warm air flow field of the first air outlet 201, so as not to affect the stability of the warm air flow field of the first air outlet 201.

[0082] Secondly, this application also provides an air conditioner, which includes the heat exchange system described in the above embodiments.

[0083] It should be noted that the air conditioner in this embodiment may include, but is not limited to, wall-mounted, floor-standing, and ceiling-mounted air conditioning equipment.

[0084] The air conditioner in this embodiment, by applying the heat exchange system described in the previous embodiment, creates three temperature fields on a single unit, enhancing its practicality. The light-sensing fitting of the airflow field, combined with interlocking avoidance control between air vents, makes the multi-temperature airflow of the air conditioner more stable, and the mixing chamber integrates the refrigerant state, making the unit operate more smoothly.

[0085] It is understood that since the heat exchange system has the beneficial effects of the above embodiments, the air conditioner will have the corresponding beneficial effects of the above embodiments. The specific implementation method can be referred to the above embodiments, and this embodiment will not repeat the details.

[0086] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate this application and are not intended to limit this application. Although this application has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of this application do not depart from the spirit and scope of the technical solutions of this application and should all be covered within the protection scope of this application.

Claims

1. A heat exchange system, characterized in that, include: compressor; The indoor unit is equipped with a first heat exchanger, which is connected to the outlet of the compressor for heating. A flexible hose is connected between the outlet of the first heat exchanger and the inlet of the compressor, and is externally placed in the heat exchange system, configured to cool external devices.

2. The heat exchange system according to claim 1, characterized in that, The outlet of the first heat exchanger is provided with a main line and a branch line connected in parallel. The hose is provided in the branch line, and the front end of the hose is provided with a pulse throttle valve. The pulse throttle valve is used to reduce the refrigerant pressure in the branch line.

3. The heat exchange system according to claim 2, characterized in that, The branch road is also equipped with: A pressure detection device is used to detect the refrigerant pressure in the branch circuit; An on / off device is used to control the on / off state of the branch.

4. The heat exchange system according to claim 2, characterized in that, The first heat exchanger is provided with a pulse jet valve at its front end, which is used to regulate the flow rate of the refrigerant flowing through the first heat exchanger; And / or, a one-way valve is provided on the branch, the one-way valve being used to control the refrigerant to flow only from the branch to the compressor.

5. The heat exchange system according to any one of claims 1-4, characterized in that, The indoor unit is also equipped with: The first air outlet is provided, and the first heat exchanger is set accordingly to the first air outlet; The second air outlet has a different orientation than the first air outlet; The second heat exchanger is connected to the outlet of the compressor for refrigeration, and the second heat exchanger is configured corresponding to the second air outlet.

6. The heat exchange system according to claim 5, characterized in that, The heat exchange system further includes a mixing device having a mixing chamber, the inlet of which is connected to the outlets of the first heat exchanger and the second heat exchanger, and the outlet of which is connected to the inlet of the compressor.

7. The heat exchange system according to claim 5, characterized in that, The heat exchange area of ​​the first heat exchanger is smaller than that of the second heat exchanger; And / or, the front end of the second heat exchanger is provided with a condenser and a throttling device.

8. The heat exchange system according to claim 5, characterized in that, The first air outlet is provided with an air guide duct, and a fan is installed inside the air guide duct. The air outlet angle of the air guide duct is adjustable.

9. The heat exchange system according to claim 8, characterized in that, The air duct is equipped with a photosensitive lamp, which is used to indicate the air delivery area of ​​the air duct. And / or, a temperature detection device is provided at the end of the air duct.

10. An air conditioner, characterized in that, The air conditioner includes the heat exchange system according to any one of claims 1-9.

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