Air distribution device for automobile air conditioner, and control method

Abstract

An air distribution device for an automobile air conditioner, the air distribution device being arranged in an air supply cavity of an automobile. An air intake port of the air supply cavity is provided with a blower (9) of an automobile air conditioner. The air distribution device for an automobile air conditioner comprises: a partitioned air intake assembly, a partitioned air discharge assembly, an indoor refrigeration heat exchanger (1), and an indoor heating heat exchanger (2), wherein the indoor refrigeration heat exchanger (1) and the indoor heating heat exchanger (2) are arranged in parallel in the air supply cavity; and the partitioned air intake assembly is arranged on an air intake side of the air supply cavity and forms a first air intake channel and a second air intake channel which respectively run through the indoor refrigeration heat exchanger (1) and the indoor heating heat exchanger (2). The partitioned air discharge assembly is arranged on an air discharge side of the air supply cavity, and air from an outlet of the first air intake channel and air from an outlet of the second air intake channel are mixed before flowing through the partitioned air discharge assembly. Further disclosed is a control method for the air distribution device for an automobile air conditioner. The indoor refrigeration heat exchanger (1) and the indoor heating heat exchanger (2) of the air distribution device for an automobile air conditioner are arranged in parallel, so that the flow resistance of an airflow passing through the refrigeration heat exchanger in an existing series arrangement of the indoor refrigeration heat exchanger and the indoor heating heat exchanger can be reduced, and energy consumption can be significantly reduced.

Description

Automotive air conditioning air distribution device and control method Technical Field

[0001] This application relates to the field of automotive air conditioning technology, and more specifically, to an automotive air conditioning air distribution device and control method. Background Technology

[0002] In an air conditioning system, the function of the air distribution unit is to control the ratio of airflow to cold and heat sources, mix them to achieve the target blowing temperature, and finally deliver the mixed air to the passenger compartment through different air outlets. The cold source in the air distribution unit is generally an evaporator (cooled by refrigerant) or a water cooler (cooled by water), while the heat source is generally a warm air core (heated by coolant) or a built-in condenser (heated by refrigerant).

[0003] In traditional vehicle air conditioning systems, considering the need for dehumidification in heating mode, the cold source is placed before the heat source. Air must first flow through the cold source (cooling and dehumidifying simultaneously), and then the proportion flowing through the heat source is adjusted by a mixing damper to ultimately achieve the desired airflow temperature. The mixing damper can be placed between or after the cold and heat sources, but regardless of the form, the required hot air must first be cooled by the cold source before entering the heat source; that is, the cold and heat sources are in series. This structure is determined by the fact that the airflow is cooled by the cold source before entering the heat source for heating. Subsequent reheating requires more energy, which is inconsistent with energy conservation trends.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] To address the problems in the prior art, the purpose of this application is to provide an automotive air conditioning air distribution device and control method. The indoor cooling heat exchanger and the indoor heating heat exchanger of the air distribution device are connected in parallel, which can reduce the resistance of airflow when passing through the cooling heat exchanger in the existing series structure and can greatly save energy loss. At the same time, the air distribution device has a more compact structure.

[0006] The first aspect of this application provides an automotive air conditioning air distribution device, which is disposed in the air supply cavity of an automotive vehicle, and the air inlet of the air supply cavity is provided with a blower of the automotive air conditioning system.

[0007] The automotive air conditioning system includes a zoned air intake assembly, a zoned air outlet assembly with multiple air outlets, an indoor cooling heat exchanger, and an indoor heating heat exchanger.

[0008] The indoor cooling heat exchanger and the indoor heating heat exchanger are arranged in parallel within the air supply cavity;

[0009] The partitioned air intake assembly is disposed on the air intake side of the air supply cavity and forms a first air intake channel and a second air intake channel respectively through the indoor cooling heat exchanger and the indoor heating heat exchanger.

[0010] The partitioned air outlet component is disposed on the air outlet side of the air supply cavity, and the outlet of the first air inlet channel and the outlet of the second air inlet channel are mixed and connected to the partitioned air outlet component.

[0011] According to a first aspect of this application, the partitioned air intake assembly includes a first partition and a mixing damper;

[0012] The first partition is disposed at the air inlet end of the indoor refrigeration heat exchanger and the indoor heating heat exchanger;

[0013] The air volume of the first air intake channel and the second air intake channel is controlled by the mixing damper.

[0014] According to a first aspect of this application, the partitioned air intake assembly includes a first partition and a mixing damper;

[0015] The first partition is disposed at the air outlet end of the indoor refrigeration heat exchanger and the indoor heating heat exchanger;

[0016] The air volume of the first air intake channel and the second air intake channel is controlled by the mixing damper.

[0017] According to a first aspect of this application, the partitioned air intake assembly includes a first partition and two mixing dampers;

[0018] The first partition is disposed between the indoor refrigeration heat exchanger and the indoor heating heat exchanger;

[0019] The two mixing dampers are respectively located in the first air inlet channel and the second air inlet channel.

[0020] According to a first aspect of this application, the partitioned air outlet assembly includes at least one second partition and at least one air outlet damper;

[0021] The at least one second partition is disposed on the air outlet side of the air supply cavity and divides the air outlet side of the air supply cavity into at least two air outlets;

[0022] The at least one air outlet damper controls the air volume of the at least two air outlets.

[0023] According to a first aspect of this application, the air inlet of the air supply cavity is provided with a first temperature sensor and a humidity sensor;

[0024] The air outlet of the indoor cooling heat exchanger is equipped with a second temperature sensor;

[0025] The air outlet of the indoor heating heat exchanger is equipped with a third temperature sensor.

[0026] Each air outlet of the partitioned air outlet assembly is equipped with a fourth temperature sensor.

[0027] According to a first aspect of this application, the hybrid damper is a plate damper, a fan damper, a sliding damper, or a butterfly damper.

[0028] A second aspect of this application provides a control method for an automotive air conditioning air distribution device, applicable to the aforementioned automotive air conditioning air distribution device, the control method comprising the following steps:

[0029] Obtain the target humidity h at the target air outlet of the zoned air outlet component. M ;

[0030] Obtain the inlet humidity h of the air supply cavity in and the humidity h at the air outlet of the indoor cooling heat exchanger c ;

[0031] Determine the target humidity h at the target air outlet of the zoned air outlet component. M Is it less than the inlet humidity h of the air supply cavity? in ;

[0032] If so, then the opening p of the mixing damper will be adjusted. a Set to: p a =(h M -h c ) / (h in -h c );

[0033] If not, then adjust the opening p of the mixing damper. a Set to 100%.

[0034] According to a second aspect of this application, the control method further includes the following steps:

[0035] Obtain the target temperature t of the target air outlet of the zoned air outlet component. M The inlet temperature t of the air supply cavity in The outlet temperature t of the indoor heating heat exchanger h and the opening p of the mixing damper a ;

[0036] Calculate the required temperature t at the outlet of the indoor cooling heat exchanger. c1 The t c1 =(t M -t h* p a ) / (1-p a );

[0037] Based on temperature t in and temperature t c1 Calculate the power of the indoor cooling heat exchanger;

[0038] The power control of the indoor cooling heat exchanger is obtained based on calculations, up to the temperature t at the outlet of the indoor cooling heat exchanger. c With temperature t c1 The difference between them is less than a set threshold.

[0039] According to a second aspect of this application, the control method further includes the following steps:

[0040] Obtain the target temperature t of the target air outlet of the zoned air outlet component. M The inlet temperature t of the air supply cavity in The outlet temperature t of the indoor cooling heat exchanger c and the opening p of the mixing damper a ;

[0041] Calculate the required temperature t at the outlet of the indoor heating heat exchanger. h1 The t h1 =t c +(t M -t c ) / p a ;

[0042] Based on temperature t in and temperature t h1 Calculate the power of the indoor heating heat exchanger;

[0043] The power of the indoor heating heat exchanger is calculated to control the temperature t at the outlet of the indoor heating heat exchanger. h With temperature t h1 The difference between them is less than a set threshold.

[0044] In this application, the indoor cooling heat exchanger and the indoor heating heat exchanger of the automotive air conditioning air distribution device are arranged in parallel. The airflow does not need to pass through the cooling heat exchanger before entering the heating heat exchanger, which can reduce the resistance when passing through the cooling heat exchanger. At the same time, since the airflow does not need to be cooled by the cooling heat exchanger before being heated by the heating heat exchanger, energy loss can be greatly saved. In addition, since the indoor cooling heat exchanger and the indoor heating heat exchanger do not need to be connected in series, there is no sequential order, and they can be arranged freely, ensuring the compactness of the air distribution device structure. Attached Figure Description

[0045] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without inventive effort. Furthermore, the drawings are merely illustrative diagrams of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0046] Figure 1 is a structural schematic diagram of the automotive air conditioning distribution device according to the first embodiment of this application;

[0047] Figure 2 is a structural schematic diagram of the automotive air conditioning distribution device according to the second embodiment of this application;

[0048] Figure 3 is a structural schematic diagram of the automotive air conditioning distribution device according to the third embodiment of this application;

[0049] Figure 4 is a structural schematic diagram of the automotive air conditioning distribution device according to the fourth embodiment of this application;

[0050] Figure 5 is a structural schematic diagram of an automotive air conditioning distribution device according to the fifth embodiment of this application; and

[0051] Figure 6 is a flowchart of the control method of the automotive air conditioning distribution device according to the fifth embodiment of this application. Detailed Implementation

[0052] The following specific examples illustrate the implementation methods of this application. Those skilled in the art can easily understand the other advantages and effects of this application from the content disclosed herein. This application can also be implemented or applied through other different specific embodiments, and various details in this application can be modified or changed according to different viewpoints and application systems without departing from the spirit of this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0053] The embodiments of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily implement the application. This application may be embodied in many different forms and is not limited to the embodiments described herein.

[0054] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics represented in connection with that embodiment or example, which are included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics represented 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 different embodiments or examples represented in this application, as well as features of different embodiments or examples.

[0055] To clearly illustrate this application, devices unrelated to the description are omitted, and the same or similar constituent elements throughout the specification are given the same reference numerals.

[0056] Throughout this specification, when it is said that a device is "connected" to another device, this includes not only "direct connection" but also "indirect connection" by placing other components in between. Furthermore, when it is said that a device "comprises" a certain constituent element, unless otherwise stated otherwise, this does not exclude other constituent elements, but rather implies that other constituent elements may be included.

[0057] When we say that a device is "above" another device, this can mean that it is directly above the other device, or it can mean that other devices are present in between. Conversely, when we say that a device is "directly" "above" another device, there are no other devices present in between.

[0058] Although the terms first, second, etc., are used in some instances herein to refer to various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, first interface and second interface, etc., are used. Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of features, steps, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition will only occur if the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0059] The technical terms used herein are for reference only to specific embodiments and are not intended to limit the scope of this application. The singular form used herein includes the plural form unless the statement explicitly indicates otherwise. The word "comprising" as used in the specification means to specify a particular characteristic, region, integer, step, operation, element, and / or component, and does not exclude the presence or addition of other characteristics, regions, integers, steps, operations, elements, and / or components.

[0060] Although not explicitly defined, all terms, including technical and scientific terms used herein, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Terms defined in commonly used dictionaries shall be further interpreted as having a meaning consistent with the relevant technical literature and the content of this present application, and shall not be over-interpreted as having an ideal or overly formulaic meaning unless otherwise defined.

[0061] The automotive air conditioning distribution device and control method of this application are further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments are not intended to limit the scope of protection of this application.

[0062] This application provides an automotive air conditioning air distribution device. Figure 1 is a schematic diagram of the structure of the automotive air conditioning air distribution device according to the first embodiment of this application. As shown in Figure 1, the automotive air conditioning air distribution device is disposed in the air supply cavity of the vehicle, and the air inlet of the air supply cavity is provided with a blower 9 of the automotive air conditioner; the air inlet of the air supply cavity is usually provided with an internal and external circulation damper, and the blower 9 at the air inlet of the air supply cavity and the internal and external circulation damper can adjust the air volume and temperature entering the air supply cavity.

[0063] The automotive air conditioning system includes a zoned air intake assembly, a zoned air outlet assembly with multiple air outlets, an indoor cooling heat exchanger 1, and an indoor heating heat exchanger 2. The indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2 are arranged in parallel within the air supply cavity. The zoned air intake assembly is located on the air intake side of the air supply cavity and forms a first air intake channel and a second air intake channel, respectively, through the indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2. The zoned air outlet assembly is located on the air outlet side of the air supply cavity, and the outlet of the first air intake channel and the outlet of the second air intake channel are mixed and connected to the zoned air outlet assembly.

[0064] The parallel connection of indoor cooling heat exchanger 1 and indoor heating heat exchanger 2 means that air does not need to pass through another heat exchanger before entering either indoor cooling heat exchanger 1 or indoor heating heat exchanger 2. Accordingly, the channel entering and exiting indoor cooling heat exchanger 1 constitutes the first air inlet channel, and the channel entering and exiting indoor heating heat exchanger 2 constitutes the second air inlet channel. In the first embodiment, the zoned air inlet assembly includes a first partition 31 and a mixing damper 32; the first partition 31 is disposed at the air inlet end of indoor cooling heat exchanger 1 and indoor heating heat exchanger 2, thereby forming a first air inlet channel and a second air inlet channel respectively passing through indoor cooling heat exchanger 1 and indoor heating heat exchanger 2. Accordingly, the mixing damper 32 is disposed at the air inlet end of indoor cooling heat exchanger 1 and indoor heating heat exchanger 2, and the air volume of the first air inlet channel and the second air inlet channel is controlled by the mixing damper 32. The mixing damper 32 can be a plate damper, a fan damper, a sliding damper, or a butterfly damper.

[0065] Figure 2 is a schematic diagram of the structure of the automotive air conditioning air distribution device according to the second embodiment of this application. The partitioned air intake assembly includes a first partition 31 and a mixing damper 32. Unlike the first embodiment, in the second embodiment, the first partition 31 is disposed at the air outlet of the indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2, thereby forming a first air intake channel and a second air intake channel respectively through the indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2. Correspondingly, the mixing damper 32 is disposed at the air outlet of the indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2, and controls the airflow of the first air intake channel and the second air intake channel. The mixing damper 32 can be a plate-type damper, a fan-type damper, a sliding damper, or a butterfly-type damper.

[0066] The indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2, combined with the zoned air outlet assembly, form a first air inlet channel and a second air inlet channel respectively through the indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2. The form is not limited to the first and second embodiments. Figure 3 is a structural schematic diagram of the automotive air conditioning air distribution device according to the third embodiment of this application. The zoned air inlet assembly includes a first partition 31 and two mixing dampers 33. The first partition 31 is disposed between the indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2, forming a first air inlet channel and a second air inlet channel respectively through the indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2. The two mixing dampers 33 are respectively disposed in the first air inlet channel and the second air inlet channel. In the third embodiment, the two mixing dampers 33 are respectively disposed at the air outlets of the indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2. The mixing dampers 33 can be plate dampers, fan dampers, sliding dampers, or butterfly dampers.

[0067] In some other embodiments, the two mixing dampers 33 may be respectively disposed at the air inlets of the indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2, or the two mixing dampers 33 may be respectively disposed at the air inlet of the indoor cooling heat exchanger 1 and the air outlet of the indoor heating heat exchanger 2, or the two mixing dampers 33 may be respectively disposed at the air outlet of the indoor cooling heat exchanger 1 and the air inlet of the indoor heating heat exchanger 2.

[0068] In this application, the first and second air inlet channels of the indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2 are two independent channels, with a significant degree of mutual influence on airflow. Only one mixing damper is used for control (first and second embodiments). When the opening of the mixing damper is adjusted, the airflow in both channels is affected simultaneously, compromising the accuracy of completely independent airflow adjustment. Correspondingly, in the third embodiment, both the first and second air inlet channels have independent mixing damper controls. The airflow in the two channels is highly independent, allowing for independent damper adjustment according to the specific needs of each channel. This achieves independent airflow control without interference, better meeting the different airflow requirements of the heating and cooling channels.

[0069] The partitioned air outlet assembly of the automotive air conditioning air distribution device includes at least one second partition 41 and at least one air outlet damper 42. The at least one second partition 41 is disposed on the air outlet side of the air supply cavity and divides the air outlet side of the air supply cavity into at least two air outlets. The at least one air outlet damper 42 controls the airflow of the at least two air outlets. The air outlet damper 42 can be a plate-type damper, a fan-type damper, a sliding damper, or a butterfly-type damper. One air outlet damper can control two air outlet channels corresponding to two air outlets. In this case, the number of air outlet dampers is less than the number of air outlets. In some embodiments, the number of air outlet dampers can be equivalent to the number of air outlets, that is, each air outlet damper controls the airflow of one air outlet channel.

[0070] Figure 4 is a schematic diagram of the structure of the automotive air conditioning air distribution device according to the fourth embodiment of this application. The partitioned air outlet component divides the air outlet side of the air supply cavity into three air outlets. Air outlet E1 can be a defrost damper, air outlet E2 is a face damper, and air outlet E3 is a foot damper.

[0071] Figure 5 is a schematic diagram of the structure of the automotive air conditioning air distribution device according to the fifth embodiment of this application. A first temperature sensor and a humidity sensor are provided at the air inlet of the air supply cavity, respectively used to monitor the temperature t at the air inlet of the air supply cavity. in and humidity h in A second temperature sensor is installed at the air outlet of the indoor cooling heat exchanger 1 to monitor the temperature t at the air outlet of the indoor cooling heat exchanger 1. c A third temperature sensor is installed at the air outlet of the indoor heating heat exchanger 2 to monitor the temperature t at the air outlet of the indoor heating heat exchanger 2. oIt should be noted that placing temperature sensors at the air outlet of indoor cooling heat exchanger 1 / indoor heating heat exchanger 2 can be broadly understood as placing temperature sensors in the medium passage of either indoor cooling heat exchanger 1 or indoor heating heat exchanger 2 to calculate the temperature of the air outlet of the heat exchanger. In automotive air conditioning systems, when air containing water vapor flows through the indoor cooling heat exchanger, the surface temperature of the indoor cooling heat exchanger is lower than the dew point temperature of the air. Water vapor in the air will condense into water droplets on the surface of the indoor cooling heat exchanger and be discharged through the drainage system, thereby reducing the humidity of the airflow passing through the indoor cooling heat exchanger and achieving dehumidification. Indoor heating heat exchanger 2 does not have a dehumidification function; therefore, the humidity of the air at the air outlet of indoor heating heat exchanger 2 is considered to be the same as the humidity h of the air at the air inlet of the air supply cavity. in Each air outlet of the zoned air outlet assembly is equipped with a fourth temperature sensor to monitor the temperature t at each outlet. o .

[0072] This application also provides a control method for an automotive air conditioning air distribution device, applicable to the aforementioned automotive air conditioning air distribution device. Figure 6 is a flowchart of the control method for the automotive air conditioning air distribution device according to the fifth embodiment of this application. As shown in Figure 6, the control method includes the following steps:

[0073] S100 Step: Obtain the target humidity h at the target air outlet of the zoned air outlet component. M The target air outlet here refers to the air outlet in the zoned air outlet assembly that is in operation. Usually, depending on the operating mode of the car air conditioner, the air outlet in operation will be different. For example, when the dehumidification function is activated, the target air outlet is the dehumidification damper.

[0074] S300 Step: Obtain the humidity h at the air inlet of the air supply cavity. in and the humidity h at the air outlet of the indoor cooling heat exchanger c Here, the humidity h at the air outlet of the indoor cooling heat exchanger is... c According to the principle of refrigeration, the moisture content of the air after passing through the indoor refrigeration heat exchanger will reach a saturated state (after cooling and contraction, the air's moisture-holding capacity decreases significantly, and condensate will be released from the drainage mechanism, commonly known as dehumidification). Its absolute humidity can be obtained directly from the table (saturated water vapor density table) based on its temperature.

[0075] S300 Step: Based on the humidity h at the air inlet of the air supply cavity in Humidity h at the air outlet of the indoor cooling heat exchanger c and target humidity h M Determine the opening p of the mixing damper 32 a The S300 steps may specifically include the following steps:

[0076] Step S310: Determine the target humidity h at the target air outlet of the zoned air outlet component. M Is it less than the inlet humidity h of the air supply cavity? in ;

[0077] If so, proceed with step S321: adjust the opening p of the mixing damper 32. a Set to: p a =(h M -h c ) / (h in -h c );

[0078] If not, proceed to step S322: adjust the opening p of the mixing damper. a It should be noted that the opening degree p of the mixing damper is set to 100%. a Between 0% and 100%, the opening p of the mixing damper a The percentage represents the percentage of airflow directed to the indoor heating heat exchanger, such as the opening degree p of the mixing damper. a When the airflow is 0%, 0% of the airflow flows to the indoor heating heat exchanger, meaning 100% of the airflow flows to the indoor cooling heat exchanger; the opening degree p of the mixing damper... a When the airflow is at 100%, 100% of the air volume flows to the indoor heating heat exchanger. Therefore, the opening degree in this step varies slightly depending on the location of the mixing damper.

[0079] The automotive air conditioning air distribution device of this application controls the air volume ratio of the indoor cooling heat exchanger 1 (first air inlet channel) and the indoor heating heat exchanger 2 (second air inlet channel) through the mixing damper 32, thereby controlling the total dehumidification capacity and the absolute humidity of the air blown out from each air outlet.

[0080] In step S300, the opening p of the mixing damper is determined. a Subsequently, the control method also includes the following steps:

[0081] S410 Step: Obtain the target temperature t of the target air outlet of the zoned air outlet component. M The inlet temperature t of the air supply cavity in The outlet temperature t of the indoor heating heat exchanger h and the opening p of the mixing damper a ;

[0082] Step S510: Calculate the required temperature t at the outlet of the indoor cooling heat exchanger. c1 , t c1 =(t M -t h* p a ) / (1-p a ), where Pa ≠ 100%;

[0083] S610 Step: Based on temperature t in and temperature t c1 Calculate the power of the indoor cooling heat exchanger;

[0084] S710 Step: Based on the calculated power of the indoor cooling heat exchanger, control the indoor cooling heat exchanger until the temperature t at the outlet of the indoor cooling heat exchanger is reached. c With temperature t c1 The difference between them is less than a set threshold, which can be an empirical value that can be determined according to customer needs, such as 0.1 degrees.

[0085] In the above embodiments, the temperature of the target air outlet is adjusted by regulating the power of the indoor cooling heat exchanger. In other embodiments, the opening degree p of the mixing damper is determined in step S300. a Subsequently, the control method also includes the following steps:

[0086] S420 Step: Obtain the target temperature t at the target air outlet of the zoned air outlet component. M The inlet temperature t of the air supply cavity in The outlet temperature t of the indoor cooling heat exchanger c and the opening p of the mixing damper a ;

[0087] S520 Step: Calculate the required temperature t at the outlet of the indoor heating heat exchanger. h1 The t h1 =t c +(t M -t c ) / pa, where Pa ≠ 0%;

[0088] S620 Steps: Based on temperature t in and temperature t h1 Calculate the power of the indoor heating heat exchanger;

[0089] S720 Step: Based on the calculated power of the indoor heating heat exchanger, control the indoor heating heat exchanger until the temperature t at the outlet of the indoor heating heat exchanger is reached. h With temperature t h1 The difference between them is less than a set threshold. Similarly, the set threshold in step S720 can be an empirical value, which can be determined according to customer needs, such as 0.1 degrees. In this embodiment, the temperature of the target air outlet is adjusted by adjusting the power of the indoor heating heat exchanger. In actual use, the indoor heating heat exchanger or the indoor cooling heat exchanger can be selected to adjust the temperature of the target air outlet according to the ambient temperature.

[0090] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

[0091] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.

Claims

1. A car air conditioning air distribution device, characterized in that, The automotive air conditioning air distribution device is installed inside the air supply cavity of the vehicle, and the air inlet of the air supply cavity is equipped with the blower of the automotive air conditioning system. The automotive air conditioning system includes a zoned air intake assembly, a zoned air outlet assembly with multiple air outlets, an indoor cooling heat exchanger, and an indoor heating heat exchanger. The indoor cooling heat exchanger and the indoor heating heat exchanger are arranged in parallel within the air supply cavity; The partitioned air intake assembly is disposed on the air intake side of the air supply cavity and forms a first air intake channel and a second air intake channel respectively through the indoor cooling heat exchanger and the indoor heating heat exchanger. The partitioned air outlet component is disposed on the air outlet side of the air supply cavity, and the outlet of the first air inlet channel and the outlet of the second air inlet channel are mixed and connected to the partitioned air outlet component.

2. The automotive air conditioning air distribution device according to claim 1, characterized in that, The partitioned air intake assembly includes a first partition and a mixing damper; The first partition is disposed at the air inlet end of the indoor refrigeration heat exchanger and the indoor heating heat exchanger; The air volume of the first air intake channel and the second air intake channel is controlled by the mixing damper.

3. The automotive air conditioning air distribution device according to claim 1, characterized in that, The partitioned air intake assembly includes a first partition and a mixing damper; The first partition is disposed at the air outlet end of the indoor refrigeration heat exchanger and the indoor heating heat exchanger; The air volume of the first air intake channel and the second air intake channel is controlled by the mixing damper.

4. The automotive air conditioning air distribution device according to claim 1, characterized in that, The partitioned air intake assembly includes a first baffle and two mixing dampers; The first partition is respectively disposed between the indoor refrigeration heat exchanger and the indoor heating heat exchanger; The two mixing dampers are respectively located in the first air inlet channel and the second air inlet channel.

5. The automotive air conditioning air distribution device according to claim 1, characterized in that, The partitioned air outlet assembly includes at least one second partition and at least one air outlet damper; The at least one second partition is disposed on the air outlet side of the air supply cavity and divides the air outlet side of the air supply cavity into at least two air outlets; The at least one air outlet damper controls the air volume of the at least two air outlets.

6. The automotive air conditioning air distribution device according to claim 2 or 3, characterized in that, The air inlet of the air supply cavity is equipped with a first temperature sensor and a humidity sensor; The air outlet of the indoor cooling heat exchanger is equipped with a second temperature sensor; The air outlet of the indoor heating heat exchanger is equipped with a third temperature sensor. Each air outlet of the partitioned air outlet assembly is equipped with a fourth temperature sensor.

7. The automotive air conditioning air distribution device according to claim 2 or 3, characterized in that, The hybrid damper is a plate damper, a fan damper, a sliding damper, or a butterfly damper.

8. A control method for an automotive air conditioning air distribution device, characterized in that, The control method applicable to the automotive air conditioning air distribution device according to claim 6 includes the following steps: Obtain the target humidity h at the target air outlet of the zoned air outlet component. M ; Obtain the inlet humidity h of the air supply cavity in and the humidity h at the air outlet of the indoor cooling heat exchanger c ; Determine the target humidity h at the target air outlet of the zoned air outlet component. M Is it less than the inlet humidity h of the air supply cavity? in ; If so, then the opening p of the mixing damper will be adjusted. a Set to: p a =(h M -h c ) / (h in -h c ); If not, then adjust the opening p of the mixing damper. a Set to 100%.

9. The control method for the automotive air conditioning air distribution device according to claim 8, characterized in that, The control method further includes the following steps: Obtain the target temperature t of the target air outlet of the zoned air outlet component. M The inlet temperature t of the air supply cavity in The outlet temperature t of the indoor heating heat exchanger h and the opening p of the mixing damper a ; Calculate the required temperature t at the outlet of the indoor cooling heat exchanger. c1 The t c1 =(t M -t h* p a ) / (1-p a ); Based on temperature t in and temperature t c1 Calculate the power of the indoor cooling heat exchanger; The power control of the indoor cooling heat exchanger is obtained based on calculations, up to the temperature t at the outlet of the indoor cooling heat exchanger. c With temperature t c1 The difference between them is less than a set threshold.

10. The control method for the automotive air conditioning air distribution device according to claim 8, characterized in that, The control method further includes the following steps: Obtain the target temperature t of the target air outlet of the zoned air outlet component. M The inlet temperature t of the air supply cavity in The outlet temperature t of the indoor cooling heat exchanger c and the opening p of the mixing damper a ; Calculate the required temperature t at the outlet of the indoor heating heat exchanger. h1 The t h1 =t c +(t M -t c ) / p a ; Based on temperature t in and temperature t h1 Calculate the power of the indoor heating heat exchanger; The power of the indoor heating heat exchanger is calculated to control the temperature t at the outlet of the indoor heating heat exchanger. h With temperature t h1 The difference between them is less than a set threshold.

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