A type of vehicle air conditioner

Abstract

This application relates to air conditioning technology, and more particularly to a vehicle air conditioner. It includes a housing, a return air connection channel, left and right cooling units, and an outlet air connection channel. The housing has a left system air inlet channel and a right system air inlet channel; the first air inlet end of the return air connection channel is connected to the left system air inlet channel, and the second air inlet end is connected to the right system air inlet channel; the air inlet end of the left cooling unit is connected to the first air outlet end of the return air connection channel; the air inlet end of the right cooling unit is connected to the second air outlet end of the return air connection channel; the first air inlet end of the outlet air connection channel is connected to the air outlet end of the left cooling unit, the second air inlet end is connected to the air outlet end of the right cooling unit, the first air outlet end is connected to the left system outlet air channel, and the second air outlet end is connected to the right system outlet air channel. This utility model can not only simultaneously perform independent temperature control on two independent load heat sources, but also achieve redundancy compensation and powerful cooling control functions, improving the reliability of the vehicle air conditioner and its applicability to complex scenarios.

Description

Technical Field

[0001] This application relates to air conditioning refrigeration technology, and more particularly to a vehicle air conditioner. Background Technology

[0002] Currently, vehicle air conditioning systems are widely used in special vehicles, construction machinery, rail transit and other fields. In particular, in scenarios where temperature control is required for multiple independent spaces or equipment, higher requirements are placed on the reliability, flexibility and energy efficiency of the air conditioning system.

[0003] In existing technologies, dual-system vehicle air conditioning systems mostly use two sets of refrigeration systems to work in parallel or alternately to regulate the temperature of the same heat source. However, they cannot independently and differentiate the temperature control of two or more load heat sources at the same time, which limits their application in multi-heat source scenarios. In particular, when one of the refrigeration systems fails, the entire air conditioning system may completely fail and cannot continue to provide cooling services to the load, resulting in low system reliability.

[0004] Therefore, there is an urgent need for an in-vehicle air conditioner with redundancy compensation function and support for multi-mode operation to improve its reliability, flexibility and energy efficiency in complex in-vehicle environments. Utility Model Content

[0005] This utility model solves at least to some extent the above-mentioned technical problems and provides a vehicle air conditioner.

[0006] Embodiments of this disclosure provide a vehicle air conditioner, including:

[0007] Casing: forming a housing cavity, the first side of the casing is provided with a left system air inlet channel, and the second side opposite to the first side is provided with a right system air inlet channel;

[0008] Return air connection channel: located inside the housing cavity, its first air inlet end is connected to the left system air inlet channel, and its second air inlet end is connected to the right system air inlet channel;

[0009] Left cooling unit: located inside the housing cavity, its air inlet is connected to the first air outlet of the return air connecting channel;

[0010] Right cooling unit: located inside the housing cavity, its air inlet end is connected to the second air outlet end of the return air communication channel;

[0011] Air outlet connection channel: its first air inlet end is connected to the air outlet end of the left cooling unit, its second air inlet end is connected to the air outlet end of the right cooling unit, its first air outlet end is connected to the left system air outlet channel, and its second air outlet end is connected to the right system air outlet channel.

[0012] The technical solution provided in this application brings at least the following beneficial effects: The vehicle air conditioner is composed of two air conditioning units. The dual cooling systems operate independently and are centrally adjusted by a single electronic control unit. With the help of various sensors and air supply and return transmission mechanisms, the dual cooling systems can regulate the temperature of dual load heat sources. At the same time, the air ducts of the left and right systems are interconnected through the return air connection channel and the air supply connection channel, providing a structural basis for various subsequent operating modes (such as one-to-one, one-to-two, and two-to-one).

[0013] In other embodiments of this application, the vehicle air conditioner further includes a valve assembly, which includes a first side valve disposed in a connecting air passage between the air inlet end of the left cooling unit and the first air outlet end of the return air connecting channel, and / or a connecting air passage between the air outlet end of the left cooling unit and the first air inlet end of the air outlet connecting channel.

[0014] The technical solution provided in this application brings at least the following beneficial effects: when the left refrigeration system of the vehicle air conditioner malfunctions, it will not affect the operation of the right refrigeration system, and the right refrigeration system, which is working normally, can switch modes to simultaneously regulate the temperature of the two load heat sources.

[0015] In other embodiments of this application, the air valve assembly further includes a second side air valve, which is disposed in a connecting air passage between the air inlet end of the right cooling unit and the second air outlet end of the return air connecting channel, and / or a connecting air passage between the air outlet end of the right cooling unit and the second air inlet end of the air outlet connecting channel.

[0016] The technical solution provided in this application brings at least the following beneficial effects: when the right refrigeration system of the vehicle air conditioner malfunctions, it will not affect the operation of the left refrigeration system, and the normally operating left refrigeration system can switch modes to simultaneously regulate the temperature of the two load heat sources.

[0017] In other embodiments of this application, the damper assembly includes:

[0018] First air valve: located in the air inlet channel of the left system;

[0019] The third air valve is located in the air outlet channel of the left system.

[0020] The technical solution provided in this application brings at least the following beneficial effects: by setting a first air valve and a second air valve, the vehicle air conditioner can switch to a two-to-one mode to achieve a powerful cooling mode for the right cooling system and to achieve rapid cooling and regulation of the right cooling system in certain extreme scenarios.

[0021] In other embodiments of this application, the damper assembly includes:

[0022] Second air valve: located in the air inlet channel of the right system;

[0023] Fourth air valve: located in the air outlet channel of the right system.

[0024] The technical solution provided in this application brings at least the following beneficial effects: by setting a second air valve and a fourth air valve, the vehicle air conditioner can switch to a two-to-one mode to achieve a powerful cooling mode for the left cooling system and to achieve rapid cooling and regulation of the left cooling system in certain extreme scenarios.

[0025] In other embodiments of this application, the vehicle air conditioner includes a controller connected to the air valve assembly.

[0026] The technical solution provided in this application brings at least the following benefits: by controlling the opening and closing of the air valve assembly through the controller, the switching between multiple operation modes can be realized, thereby improving the applicability of the vehicle air conditioner to complex scenarios.

[0027] In other embodiments of this application, the left cooling unit includes:

[0028] First evaporator: Its air inlet end is connected to the first air outlet end of the return air communication channel;

[0029] First fan: Its air inlet is connected to the air outlet of the first evaporator;

[0030] First compressor: Its air inlet is connected to the air inlet of the first evaporator;

[0031] First condenser: its air inlet is connected to the air outlet of the first compressor, and its air outlet is connected to the outside atmosphere.

[0032] The technical solution provided in this application brings at least the following beneficial effects: it constructs a cooling unit for the left system, ensuring that the left system has a complete refrigeration cycle capability, and can operate independently or in coordination with the right system to achieve efficient temperature regulation of the load.

[0033] In other embodiments of this application, the right cooling unit includes:

[0034] Second evaporator: Its air inlet end is connected to the second air outlet end of the return air communication channel;

[0035] Second fan: Its air inlet is connected to the air outlet of the second evaporator;

[0036] The second compressor: its air inlet is connected to the air inlet of the second evaporator;

[0037] The second condenser has its air inlet end connected to the air outlet end of the second compressor, and its air outlet end is connected to the outside atmosphere.

[0038] The technical solution provided in this application brings at least the following beneficial effects: it constructs a cooling unit for the right system to ensure that the right system has a complete cooling cycle capability. On the one hand, it achieves efficient temperature regulation of the right load. On the other hand, it ensures that the two systems are completely independent in hardware, providing hardware support for redundancy and mode switching between systems.

[0039] In other embodiments of this application, the left system air outlet channel is located on the first side of the housing and is arranged in parallel with the left system air inlet channel.

[0040] The technical solution provided in this application brings at least the following benefits: optimizing the air duct layout, reducing wind resistance, improving air delivery efficiency, and facilitating interface connection with external loads, thereby enhancing the compactness and practicality of the overall structure.

[0041] In other embodiments of this application, the right system air outlet channel is located on the second side of the housing and is arranged in parallel with the right system air inlet channel.

[0042] The technical solution provided in this application brings at least the following benefits: symmetrical optimization of the right system air duct layout, ensuring that the two systems are structurally symmetrical and have balanced air volume, which facilitates airflow control during system coordinated operation and mode switching.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] 1) This invention achieves independent and coordinated temperature control for multiple loads. Through two completely independent refrigeration systems (left cooling unit and right cooling unit) and interconnected return air / outlet air connection channels, it can simultaneously perform one-to-one independent and precise temperature control on two independent load heat sources (such as two different compartments or equipment in a vehicle). This overcomes the limitation of traditional dual-system air conditioning that can only adjust for a single heat source, and greatly expands the application scenarios of vehicle air conditioning.

[0045] 2) Redundancy compensation is achieved, resulting in high reliability: When one of the refrigeration systems fails, the other system can automatically take over its load through the ventilation duct and switch to a single-system dual-load working mode, ensuring the continuity of air conditioning function and greatly improving the system's reliability and fault tolerance.

[0046] 3) Flexible operation mode and strong applicability: Through the coordinated control of the air valve assembly, multiple modes can be realized, including independent operation of dual systems (one-to-one), single system compensatory operation (one-to-two), and centralized cooling of dual systems (two-to-one). It can not only meet the independent temperature control requirements of multiple heat sources, but also cope with complex working conditions such as rapid cooling or energy saving.

[0047] The above description is merely an overview of the technical solution disclosed herein. In order to better understand the technical means of this disclosure and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this disclosure more apparent and understandable, specific embodiments of this disclosure are described below. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1 This is an external structural diagram of the vehicle air conditioner according to an embodiment of this application;

[0050] Figure 2 This is a schematic diagram illustrating the working principle of an in-vehicle air conditioner according to an embodiment of this application;

[0051] In the above figures:

[0052] 1. Left system air inlet duct; 2. Return air connecting duct; 3. First evaporator; 4. First fan; 5. Air outlet connecting duct; 6. Left system air outlet duct; 7. First compressor; 8. First condenser fan; 9. First condenser; 10. Right system air inlet duct; 11. Second evaporator; 12. Second fan; 13. Right system air outlet duct; 14. Second compressor; 15. Second condenser fan; 16. Second condenser; 100. Outer casing;

[0053] a. First air valve, b. First side air valve, c. First side air valve, d. Third air valve, e. Second air valve, f. Second side air valve, g. Second side air valve, h. Fourth air valve;

[0054] A. Left load air inlet, B. Left load air outlet, C. Right load air inlet, D. Right load air outlet, L. Left load, R. Right load. Detailed Implementation

[0055] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0056] The prefixes such as "first" and "second" used in this application embodiment are merely for distinguishing different descriptive objects and do not limit the position, order, priority, quantity, or content of the described objects. The use of ordinal numbers and other prefixes used to distinguish descriptive objects in this application embodiment does not constitute a limitation on the described objects. The description of the described objects is given in the claims or the context of the embodiments, and should not constitute unnecessary restrictions due to the use of such prefixes. Furthermore, in the description of this embodiment, unless otherwise stated, "multiple" means two or more.

[0057] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B; the term "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone.

[0058] In the embodiments provided in this application, it should be understood that the disclosed systems and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0059] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0060] Currently, dual-system air conditioning technology solutions for vehicles mainly focus on temperature regulation for the same heat source, and are designed from different perspectives. For example, from the perspective of increasing cooling capacity and reducing energy consumption, both cooling systems work simultaneously when increased cooling capacity is needed, while only one cooling system works when energy consumption needs to be reduced. Dual-system air conditioning based on this traditional solution cannot meet the requirement of independently regulating the temperature of two heat sources simultaneously.

[0061] In addition, considering that some vehicles cannot provide power around the clock, the market has designed a dual-cooling system solution with both electric drive and mechanical drive. Although this solution solves the problem that the air conditioner can be used in all weather conditions, the dual system has the shortcoming that it cannot compensate for each other. That is, if one system fails, the entire air conditioner will not work, which affects the continuity and reliability of the air conditioner function and greatly limits the applicability of the air conditioner to complex application scenarios.

[0062] This utility model provides a vehicle air conditioner that enables the independent operation of dual cooling systems and provides a redundancy compensation function. When one cooling system fails, the other cooling system takes over the two cooling systems to regulate the temperature, ensuring the continuity of the air conditioning function. In addition, it also provides a powerful cooling mode to improve the applicability of the vehicle air conditioner to complex application scenarios.

[0063] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. The terms "left," "right," "first," "second," etc., used in this embodiment are for descriptive convenience only and do not constitute a limitation on the specific structure.

[0064] like Figure 1As shown, the vehicle air conditioner includes a rectangular outer casing 100, which forms a housing cavity inside. A left system air inlet duct 1 and a left system air outlet duct 6 are located on the top left side of the outer casing 100, while a right system air inlet duct 10 and a right system air outlet duct 13 are symmetrically located on the right side, for connecting to two independent load heat sources respectively. A longitudinal partition is located in the middle of the housing cavity, roughly dividing the cavity into left and right parts. A return air connecting duct 2 and an outlet air connecting duct 5 are designed above and below the partition, respectively, connecting the left and right parts of the cavity. The left and right cooling units are respectively installed in the left and right parts of the cavity. The first air inlet of the return air connecting channel 2 is connected to the left system air inlet channel 1, and the second air inlet of the return air connecting channel 2 is connected to the right system air inlet channel 10; the air inlet of the left cooling unit is connected to the first air outlet of the return air connecting channel 2, and the air inlet of the right cooling unit is connected to the second air outlet of the return air connecting channel 2; the first air inlet of the air outlet connecting channel 5 is connected to the air outlet of the left cooling unit, the second air inlet of the air outlet connecting channel 5 is connected to the air outlet of the right cooling unit, the first air outlet of the air outlet connecting channel 5 is connected to the left system air outlet channel 6, and the second air outlet of the air outlet connecting channel 5 is connected to the right system air outlet channel 13.

[0065] The left side is an independent refrigeration system, and the right side is another refrigeration system, forming a dual refrigeration system model. In the standard one-to-one mode, the left refrigeration system is responsible for temperature regulation of the L load heat source, and the right refrigeration system is responsible for temperature regulation of the R load heat source.

[0066] like Figure 2 As shown, the left cooling unit includes a first evaporator 3, a first fan 4, and a first condenser 9, while the right cooling unit includes a second evaporator 11, a second fan 12, and a second condenser 16. Taking the left system as an example (in standard mode, the circulation of both systems is the same), the specific system supply and return air circulation sequence is as follows: The air conditioner uses the suction force of the first fan 4 to draw air out from port B of the load L, enters the air conditioning system through the left system air intake channel 1, and then passes through the return air connection channel 2. Heat exchange occurs in the first evaporator 3, transferring the heat from the air to the first condenser 9 before being discharged outdoors. Meanwhile, the cooled air inside the left system exits from the first evaporator 3 and enters the first fan 4. The fan blows out the temperature-controlled air, which then passes through the outlet air connection channel 5 and is sent to the load A inlet from the left system outlet air channel 6, thus regulating the temperature of the load L. The air, after heat exchange inside the load L, flows out from port B and re-enters the air conditioning system. This cycle repeats, achieving the temperature regulation of the load L. In standard mode, the left and right cooling systems circulate independently. Although the return air connection channel 2 and the outlet air connection channel 5 are connected, the air pressure on the left and right sides is roughly the same, so the airflow of the left and right systems will not cross each other and can dynamically maintain a relatively isolated state.

[0067] The technical solution provided in this application interconnects the air ducts of the left and right systems through the return air connection channel 2 and the outlet air connection channel 5, constructing a basic vehicle air conditioning structure with dual cooling systems, which can achieve independent operation between the two systems. In the prior art, if one system fails, the other system will also be interfered with, causing the entire air conditioning system to malfunction. However, in this air conditioning structure, when one system fails, the other system is not affected. Moreover, the input airflow of the two systems can be introduced simultaneously through the return air connection channel, and the cooled airflow can be output to the two systems simultaneously through the outlet air connection channel, thereby achieving temperature regulation of the faulty system and simultaneous temperature regulation of two load heat sources. In addition, this air conditioning structure provides a structural basis for various subsequent operating modes (such as one-to-one, one-to-two, and two-to-one).

[0068] In a specific illustrative embodiment, to address the issue of precise airflow control in the event of a left cooling unit malfunction, a damper assembly is installed at a key node of the air duct. The damper assembly includes a first side damper, which is disposed in the air passage connecting the air inlet of the left cooling unit and the first air outlet of the return air passage 2, and / or, the air passage connecting the air outlet of the left cooling unit and the first air inlet of the air outlet passage 2.

[0069] like Figure 2 As shown, for example, the first side air valve can be set in the air passage connecting the air inlet end of the left cooling unit and the first air outlet end of the return air passage 2, such as the first side air valve b; the first side air valve can be set in the air passage connecting the air outlet end of the left cooling unit and the first air inlet end of the air outlet passage 2, such as the first side air valve c; the first side air valve can be set in the air passage connecting the air inlet end of the left cooling unit and the first air outlet end of the return air passage 2, and in the air passage connecting the air outlet end of the left cooling unit and the first air inlet end of the air outlet passage 2, such as the first side air valves b and c.

[0070] In this embodiment, the first side air valve is simultaneously installed in the air passage connecting the air inlet end of the left cooling unit and the first air outlet end of the return air passage 2, and in the air passage connecting the air outlet end of the left cooling unit and the first air inlet end of the air outlet passage 2. That is, the first side air valve includes b and c.

[0071] In this embodiment, when the left system malfunctions and the air conditioner stops working, the air conditioner controller will receive an abnormal signal indicating that the left system has malfunctioned. At this time, it will automatically switch to a one-to-two redundant cooling mode (i.e., a single-side air conditioning cooling system is responsible for the temperature regulation mode of the left and right loads L\R).

[0072] Specifically, when the left system malfunctions and the air conditioner stops working, the air conditioning controller will switch the first side air valves b and c to the closed state, sealing off and isolating the cooling unit of the left system. At this time, the supply and return air circulation sequence is as follows: the supply and return air circulation sequence of the normally operating right system is consistent with the standard mode; the supply and return air of the left system is switched to use the suction force of the right system fan 12 to draw air from the load L outlet B through the left system air inlet channel 1. Since the first side air valve b is in the closed state, the air flows laterally into the right system through the return air connecting ventilation duct 2, undergoes heat exchange in the right system evaporator 11, and is blown out by the fan 12. It is divided into two paths in the outlet air connecting ventilation duct 5. One path flows into the left system and enters the load L inlet A through the left system outlet air duct 6 to achieve temperature regulation of the load L. The other path is the same circulation sequence of the normally operating right system as in the standard mode.

[0073] The technical solution proposed in this application enables the right system to automatically enter a redundancy compensation one-to-two mode when the left system fails, so as to continue to ensure the normal temperature regulation function of the air conditioner.

[0074] In a specific illustrative embodiment, the air valve assembly further includes a second side air valve, which is disposed in the air passage connecting the air inlet end of the right cooling unit and the second air outlet end of the return air passage 2, and / or the air passage connecting the air outlet end of the right cooling unit and the second air inlet end of the air outlet passage 5.

[0075] like Figure 2 As shown, for example, the second side air valve can be installed in the air passage connecting the air inlet of the right cooling unit and the second air outlet of the return air passage 2, such as the second side air valve f; the second side air valve can be installed in the air passage connecting the air outlet of the right cooling unit and the second air inlet of the air outlet passage 5, such as the second side air valve g; the second side air valve can be installed in the air passage connecting the air inlet of the right cooling unit and the second air outlet of the return air passage 2 and in the air passage connecting the air outlet of the right cooling unit and the second air inlet of the air outlet passage 5, such as the second side air valves f and g.

[0076] In this embodiment, the second side air valve is installed in the air passage connecting the air inlet end of the right cooling unit and the second air outlet end of the return air passage 2, and in the air passage connecting the air outlet end of the right cooling unit and the second air inlet end of the air outlet passage 5. That is, the second side air valve includes air valves f and g.

[0077] In this embodiment, when the right system malfunctions and the air conditioner stops working, the air conditioner controller will receive an abnormal signal indicating that the right system has malfunctioned. At this time, it will automatically switch to a one-to-two redundant cooling mode (i.e., a single-side air conditioning cooling system is responsible for the temperature regulation mode of the left and right loads L\R).

[0078] Specifically, when the right system malfunctions and the air conditioner stops working, the air conditioning controller will switch the second side air valves f and g to the closed state, sealing off and isolating the cooling unit of the right system. At this time, the supply and return air circulation sequence is as follows: the supply and return air circulation sequence of the normally operating left system is consistent with the standard mode; the supply and return air of the right system is switched to use the suction force of the fan 4 of the left system to draw the air from the outlet D of the load R through the air inlet channel 10 of the right system. Since the second side air valve f is in the closed state, the air flows laterally into the left system through the return air connection duct 2, undergoes heat exchange in the evaporator 3 of the left system, and is blown out by the fan 4. It is divided into two paths in the outlet air connection duct 5. One path flows into the right system and enters the inlet C of the load R through the right system outlet air channel 13 to achieve temperature regulation of the load R. The other path is the same circulation sequence of the normally operating left system as in the standard mode.

[0079] The technical solution of this application enables the left system to automatically enter a redundancy compensation one-to-two mode when the right system fails, so as to continue to ensure the normal temperature regulation function of the air conditioner.

[0080] In a specific illustrative embodiment, if both refrigeration systems are in normal working condition, one of the systems can be manually stopped to manually enter a one-to-two working mode, thereby achieving energy saving.

[0081] In a specific illustrative embodiment, the air valve assembly of the vehicle air conditioner includes:

[0082] First air valve a: Located in the left system air inlet channel 1;

[0083] Third air valve d: located in the left system air outlet channel 6.

[0084] If, under certain extreme circumstances, the load R requires rapid cooling and adjustment, it can be switched to a two-to-one mode, a high-efficiency cooling mode. By controlling the opening and closing of the first air valve a and the third air valve d, the left and right systems can centrally regulate the temperature of the single load heat source, the load R.

[0085] Specifically, when the load R is subjected to intensive cooling, the vehicle air conditioner switches to a two-to-one mode. The controller closes the first air valve a and the third air valve d, and seals the left system air intake passage and the left system air outlet passage. This establishes a cyclic connection between the cooling units of the left and right dual systems and the load R. The specific air supply and return sequence is as follows: using the suction of the left and right system fans 4 and 12, the air from the outlet D of the load R enters the return air connecting passage 2 through the right system air intake passage 10. After the heat exchange of the left and right dual system evaporators 3 and 11, it is blown out by the left and right dual system fans 4 and 12. After being collected in the outlet air connecting passage 5, it enters the inlet C of the load R through the right system outlet passage 13, thereby achieving intensive temperature regulation of the load R.

[0086] The technical solution of this application realizes the powerful cooling mode of vehicle air conditioning, which can achieve rapid cooling and adjustment of the load R under extreme conditions, and improve the applicability of vehicle air conditioning to complex environments.

[0087] In a specific illustrative embodiment, the air valve assembly of the vehicle air conditioner includes:

[0088] Second air valve e: Located in the right system air inlet channel 10;

[0089] Fourth air valve h: located in the right system air outlet channel 13.

[0090] If, under certain extreme circumstances, load L requires rapid cooling and adjustment, it can be switched to a two-to-one mode, a high-efficiency cooling mode. By controlling the opening and closing of the second air valve e and the fourth air valve h, the left and right systems can centrally regulate the temperature of a single load heat source, load L.

[0091] Specifically, when the load L is subjected to intensive cooling, the vehicle air conditioner switches to a two-to-one mode. The controller closes the second air valve e and the fourth air valve h, and closes the right system air intake channel and the right system air outlet channel. This establishes a cyclic connection between the cooling units of the left and right dual systems and the load L. The specific air supply and return sequence is as follows: using the suction of the left and right system fans 4 and 12, the air from the outlet B of the load L enters the return air connecting channel 2 through the left system air intake channel 1. After the heat exchange of the left and right dual system evaporators 3 and 11, it is blown out by the left and right dual system fans 4 and 12. After being collected in the outlet air connecting channel 5, it enters the inlet A of the load L through the left system air outlet channel 6, thus achieving intensive temperature regulation of the load L.

[0092] The technical solution of this application realizes the powerful cooling mode of vehicle air conditioning, which can achieve rapid cooling and adjustment of load L under extreme conditions, and improve the applicability of vehicle air conditioning to complex environments.

[0093] like Figure 1 , 2 As shown, in a specific illustrative embodiment, the vehicle air conditioner includes:

[0094] First evaporator 3: Its air inlet end is connected to the first air outlet end of the return air connecting channel 2;

[0095] First fan 4: Its air inlet is connected to the air outlet of the first evaporator 3;

[0096] First compressor 7: Its air inlet end is connected to the air inlet end of first evaporator 3;

[0097] First condenser 9: Its air inlet is connected to the air outlet of the first compressor 7, and its air outlet is connected to the outside atmosphere.

[0098] The cooling unit of the left system is constructed by the first evaporator 3, the first fan 4, the first compressor 7, and the first condenser 9, ensuring that the left system has a complete refrigeration cycle capability and can operate independently or in coordination with the right system to achieve efficient temperature regulation of the load.

[0099] In other embodiments of this application, the vehicle air conditioner also includes a first condensing fan 8, which is installed outside the first condenser 9 and connected to the first condenser 9 through a pipe. It uses the rotation of the impeller to draw in air, thereby dissipating heat for the first condenser 9 and enhancing the heat exchange efficiency.

[0100] In other embodiments of this application, the right cooling unit includes:

[0101] Second evaporator 11: Its air inlet end is connected to the second air outlet end of the return air connecting channel 2;

[0102] Second fan 12: Its air inlet is connected to the air outlet of the second evaporator 11;

[0103] The second compressor 14: its air inlet is connected to the air inlet of the second evaporator 11;

[0104] The second condenser 16 has its air inlet end connected to the air outlet end of the second compressor 14, and its air outlet end connected to the outside atmosphere.

[0105] The cooling unit of the right system is constructed by the second evaporator 11, the second fan 12, the second compressor 14, and the second condenser 16, ensuring that the right system has a complete refrigeration cycle capability. On the one hand, it achieves efficient temperature regulation of the right load, and on the other hand, it ensures that the two systems are completely independent in hardware, providing hardware support for redundancy and mode switching between systems.

[0106] In other embodiments of this application, the vehicle air conditioner also includes a second condenser fan 15, which is installed outside the second condenser 16 and connected to the second condenser 16 through a pipe. It uses the rotation of the impeller to draw in air, thereby dissipating heat for the second condenser 16 and enhancing the heat exchange efficiency.

[0107] like Figure 1 As shown, in a specific illustrative embodiment, the left system air outlet duct 6 is located on the first side of the housing 100 and is arranged side by side with the left system air inlet duct 1.

[0108] The technical solution provided in this application optimizes the air duct layout of the left system, reduces wind resistance, improves air delivery efficiency, and facilitates interface with external loads, thereby enhancing the compactness and practicality of the overall structure.

[0109] like Figure 1 As shown, in a specific illustrative embodiment, the right system air outlet duct 13 is located on the second side of the housing 100 and is arranged side by side with the right system air inlet duct 10.

[0110] The technical solution provided in this application symmetrically optimizes the air duct layout of the right system, ensuring that the two systems are structurally symmetrical and have balanced airflow, which facilitates airflow control during system collaborative operation and mode switching.

[0111] The above embodiments are only used to illustrate the technical solutions of this application and not to limit them; although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this application or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of this application, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in this application.

Claims

1. A vehicle air conditioner, characterized in that, include: Casing: forming a housing cavity, the first side of the casing is provided with a left system air inlet channel, and the second side opposite to the first side is provided with a right system air inlet channel; Return air connection channel: located inside the housing cavity, its first air inlet end is connected to the left system air inlet channel, and its second air inlet end is connected to the right system air inlet channel; Left cooling unit: located inside the housing cavity, its air inlet is connected to the first air outlet of the return air connecting channel; Right cooling unit: located inside the housing cavity, its air inlet end is connected to the second air outlet end of the return air communication channel; Air outlet connection channel: Its first air inlet is connected to the air outlet of the left cooling unit, its second air inlet is connected to the air outlet of the right cooling unit, and its first air outlet is connected to the left system air outlet channel. Its second air outlet is connected to the right system air outlet duct.

2. The vehicle air conditioner according to claim 1, characterized in that, It also includes a damper assembly, which includes a first side damper disposed in a connecting air passage between the air inlet end of the left cooling unit and the first air outlet end of the return air connecting channel, and / or a connecting air passage between the air outlet end of the left cooling unit and the first air inlet end of the air outlet connecting channel.

3. The vehicle air conditioner according to claim 2, characterized in that, The air valve assembly further includes a second side air valve, which is disposed in the air passage connecting the air inlet end of the right cooling unit and the second air outlet end of the return air passage, and / or the air passage connecting the air outlet end of the right cooling unit and the second air inlet end of the air outlet passage.

4. The vehicle air conditioner according to claim 2, characterized in that, The damper assembly includes: First air valve: located in the air inlet channel of the left system; The third air valve is located in the air outlet channel of the left system.

5. The vehicle air conditioner according to claim 2, characterized in that, The damper assembly also includes: Second air valve: located in the air inlet channel of the right system; Fourth air valve: located in the air outlet channel of the right system.

6. The vehicle air conditioner according to claim 2, 3, 4, or 5, characterized in that, Also includes: Controller: Connected to the air valve assembly.

7. The vehicle air conditioner according to claim 1 or 2, characterized in that, The left cooling unit includes: First evaporator: Its air inlet end is connected to the first air outlet end of the return air communication channel; First fan: Its air inlet is connected to the air outlet of the first evaporator; First compressor: Its air inlet is connected to the air inlet of the first evaporator; First condenser: its air inlet is connected to the air outlet of the first compressor, and its air outlet is connected to the outside atmosphere.

8. The vehicle air conditioner according to claim 1 or 3, characterized in that, The right cooling unit includes: Second evaporator: Its air inlet end is connected to the second air outlet end of the return air communication channel; Second fan: Its air inlet is connected to the air outlet of the second evaporator; The second compressor: its air inlet is connected to the air inlet of the second evaporator; The second condenser has its air inlet end connected to the air outlet end of the second compressor, and its air outlet end is connected to the outside atmosphere.

9. The vehicle air conditioner according to claim 1, characterized in that, The left system air outlet duct is located on the first side of the housing and is arranged in parallel with the left system air inlet duct.

10. The vehicle air conditioner according to claim 1, characterized in that, The right system air outlet duct is located on the second side of the housing and is arranged in parallel with the right system air inlet duct.

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