Automobile air conditioner air distribution device and control method

Abstract

The invention provides an automobile air conditioner air distribution device and a control method, the automobile air conditioner air distribution device is arranged in an air supply cavity of an automobile, and an air blower of an automobile air conditioner is arranged at an air inlet of the air supply cavity; the automobile air conditioner air distribution device comprises a partition air inlet assembly, a partition air outlet assembly, an indoor refrigeration heat exchanger and an indoor heating heat exchanger. The indoor refrigeration heat exchanger and the indoor heating heat exchanger are arranged in the air supply cavity in parallel; the partition air inlet assembly is arranged on the air inlet side of the air supply cavity, and a first air inlet channel and a second air inlet channel which pass through the indoor refrigeration heat exchanger and the indoor heating heat exchanger correspondingly are formed. The partition air outlet assembly is arranged on the air outlet side of the air supply cavity, and an outlet of the first air inlet channel and an outlet of the second air inlet channel communicate with the partition air outlet assembly after air mixing. The indoor refrigeration heat exchanger and the indoor heating heat exchanger of the air distribution device are arranged in parallel, impedance generated when airflow passes through the refrigeration heat exchanger in an existing series connection structure of the indoor refrigeration heat exchanger and the indoor heating heat exchanger can be reduced, and energy loss can be greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile air conditioners, and in particular to an automobile air conditioner air distribution device and a control method. Background Art

[0002] In the air conditioning system, the function of the air distribution device is to control the ratio of air flow through the cold source and the heat source, achieve the target blowing temperature through mixing, and finally send the mixed air to the passenger compartment through different air outlets. The cold source in the air distribution device generally uses an evaporator (refrigerant cooling) or a water cooler (water cooling), and the heat source generally uses a heater core (coolant heating) or a built-in condenser (refrigerant heating).

[0003] In traditional vehicle air conditioning systems, dehumidification is also required in heating mode, so the cold source is placed before the heat source. The air must first flow through the cold source (dehumidification while cooling), and then the mixing damper adjusts the proportion of air flowing through the heat source to finally reach the desired temperature of the blown air flow. The mixing damper can be placed between the cold source and the heat source, or after the cold source and the heat source. However, no matter what form it takes, the required hot air must first be cooled by the cold source before entering the heat source, that is, the cold source and the heat source are in series. The above structure is determined by the fact that the airflow is first cooled by the cold source before entering the heat source for heating. The subsequent reheating requires more energy consumption, which is not in line with the energy-saving trend.

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

[0005] In view of the problems in the prior art, the purpose of the present invention is to provide an automobile air conditioning air distribution device and a control method. The indoor cooling heat exchanger and the indoor heating heat exchanger of the air distribution device are arranged in parallel, which can reduce the impedance of the airflow passing through the cooling heat exchanger in the existing series structure of the two, and can greatly save energy loss. At the same time, the structure of the air distribution device is more compact.

[0006] A first aspect of the present invention provides an automobile air conditioning air distribution device, wherein the automobile air conditioning air distribution device is arranged in an air supply cavity of an automobile, and a blower of the automobile air conditioning is arranged at an air inlet of the air supply cavity;

[0007] The automobile air conditioning air distribution device comprises a partitioned air inlet assembly, a partitioned air outlet assembly provided with a plurality of 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 in the air supply chamber;

[0009] The partitioned air inlet assembly is arranged on the air inlet side of the air supply cavity and forms a first air inlet channel and a second air inlet channel passing through the indoor cooling heat exchanger and the indoor heating heat exchanger respectively;

[0010] The partitioned air outlet component is arranged at 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 connected to the partitioned air outlet component after air mixing.

[0011] According to a first aspect of the present invention, the partitioned air intake assembly comprises a first baffle and a mixing damper;

[0012] The first partition plate is arranged at the air inlet end of the indoor cooling heat exchanger and the indoor heating heat exchanger;

[0013] The air volume of the first air inlet passage and the second air inlet passage is controlled by the mixing air door.

[0014] According to a first aspect of the present invention, the partitioned air intake assembly comprises a first baffle and a mixing damper;

[0015] The first partition plate is arranged at the air outlet ends of the indoor cooling heat exchanger and the indoor heating heat exchanger;

[0016] The air volume of the first air inlet passage and the second air inlet passage is controlled by the mixing air door.

[0017] According to a first aspect of the present invention, the partitioned air intake assembly comprises a first baffle and two mixing dampers;

[0018] The first partition is arranged between the indoor cooling heat exchanger and the indoor heating heat exchanger;

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

[0020] According to the first aspect of the present invention, the partitioned air outlet assembly includes at least one second partition plate and at least one air outlet door;

[0021] The at least one second partition is arranged 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 the present invention, 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 refrigeration heat exchanger is provided with a second temperature sensor;

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

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

[0027] According to a first aspect of the present invention, the mixing damper is a plate-type damper, a fan-type damper, a sliding damper or a butterfly-type damper.

[0028] A second aspect of the present invention provides a control method for an automobile air conditioning air distribution device, which is applicable to the automobile air conditioning air distribution device, and the control method comprises the following steps:

[0029] Get the target humidity h of the target outlet of the partitioned air outlet component M ;

[0030] Get the air inlet humidity h of the air supply cavity in And the outlet humidity of the indoor refrigeration heat exchanger h c ;

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

[0032] If so, adjust the opening of the mixing door to p a Set to: p a =(h M -h c ) / (h in -h c );

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

[0034] According to the second aspect of the present invention, the control method further comprises the following steps:

[0035] Get the target temperature t of the target outlet of the partitioned air outlet component M , the air inlet temperature of the air supply chamber t in , the outlet temperature of the indoor heating heat exchanger t h and the opening of the mixing door p a ;

[0036] Calculate the temperature t that the air outlet of the indoor refrigeration heat exchanger needs to reach c1 , the t c1 =(t M -t h* p a ) / (1-p a );

[0037] According to the temperature t in and temperature t c1 Calculate the power of the indoor refrigeration heat exchanger;

[0038] According to the power of the indoor refrigeration heat exchanger obtained by calculation, the indoor refrigeration heat exchanger is controlled until the temperature t of the air outlet of the indoor refrigeration heat exchanger is c With temperature t c1 The difference between them is less than a set threshold.

[0039] According to the second aspect of the present invention, the control method further comprises the following steps:

[0040] Get the target temperature t of the target outlet of the partitioned air outlet component M , the air inlet temperature of the air supply chamber t in , the outlet temperature of the indoor refrigeration heat exchanger t c and the opening of the mixing door p a ;

[0041] Calculate the temperature t that the air outlet of the indoor heating heat exchanger needs to reach h1 , the t h1 =t c +(t M -t c ) / p a ;

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

[0043] According to the power of the indoor heating heat exchanger obtained by calculation, the indoor heating heat exchanger is controlled until the temperature t of the air outlet of the indoor heating heat exchanger is h With temperature t h1 The difference between them is less than a set threshold.

[0044] The indoor cooling heat exchanger and the indoor heating heat exchanger of the automobile air conditioning air distribution device of the present invention are arranged in parallel, and the airflow does not need to pass through the cooling heat exchanger in advance and then enter the heating heat exchanger, which can reduce the impedance 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 and then 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 order of precedence and they can be arranged freely, ensuring the compactness of the structure of the air distribution device. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes and advantages of the present invention will become more apparent. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. In addition, the drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same figure numbers in the figures represent the same or similar parts, and their repeated descriptions will be omitted. Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0046] Figure 1 It is a structural schematic diagram of an automobile air conditioning air distribution device according to a first embodiment of the present invention;

[0047] Figure 2 It is a structural schematic diagram of an automobile air conditioning air distribution device according to a second embodiment of the present invention;

[0048] Figure 3 It is a structural schematic diagram of an automobile air conditioning air distribution device according to a third embodiment of the present invention;

[0049] Figure 4 It is a structural schematic diagram of an automobile air conditioning air distribution device according to a fourth embodiment of the present invention;

[0050] Figure 5 A schematic structural diagram of an automobile air conditioning air distribution device according to a fifth embodiment of the present invention; and

[0051] Figure 6 This is a flow chart of a control method for an automobile air conditioning air distribution device according to a fifth embodiment of the present invention. DETAILED DESCRIPTION

[0052] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in the present invention. The present invention can also be implemented or applied through other different specific embodiments, and the details in the present invention can also be modified or changed according to different viewpoints and application systems without departing from the spirit of the present invention. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0053] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention. The present invention can be embodied in many different forms and is not limited to the embodiments described herein.

[0054] In the representation of the present invention, the reference terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. Moreover, the specific features, structures, materials or characteristics represented may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples represented in the present invention and the features of different embodiments or examples, unless they are contradictory.

[0055] In order to clearly describe the present invention, components not related to the description are omitted, and the same reference numerals are given to the same or similar components throughout the specification.

[0056] Throughout the specification, when a device is said to be "connected" to another device, this includes not only the case of "direct connection" but also the case of "indirect connection" by placing other elements therebetween. In addition, when a device is said to "include" a certain component, unless otherwise stated, it does not exclude other components, but means that other components may be included.

[0057] When a device is said to be "on" another device, it may be directly on the other device, but there may also be other devices between it. In contrast, when a device is said to be "directly" on another device, there are no other devices between it.

[0058] Although the terms first, second, etc. are used to represent various elements in some examples, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, the first interface and the second interface, etc. are represented. Moreover, as used in this article, the singular forms "one", "one" and "the" are intended to also include plural forms, unless there is an opposite indication in the context. It should be further understood that the terms "comprising" and "including" indicate the existence of features, steps, operations, elements, components, projects, kinds, and / or groups, but do not exclude the existence, occurrence or addition of one or more other features, steps, operations, elements, components, projects, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Only when the combination of elements, functions, steps or operations is inherently mutually exclusive in some way, will there be an exception to this definition.

[0059] The technical terms used herein are only used to refer to specific embodiments and are not intended to limit the present invention. The singular form used herein also includes the plural form as long as the sentence does not clearly indicate the opposite meaning. The meaning of "including" used in the specification is to specify specific characteristics, regions, integers, steps, operations, elements and / or components, and does not exclude the existence or addition of other characteristics, regions, integers, steps, operations, elements and / or components.

[0060] Although not defined differently, all terms, including technical and scientific terms used herein, have the same meaning as those generally understood by those skilled in the art to which the present invention belongs. Terms defined in commonly used dictionaries are additionally interpreted as having meanings consistent with the content of relevant technical literature and current disclosures, and unless defined, shall not be overly interpreted as ideal or very formal meanings.

[0061] The automobile air conditioning air distribution device and control method of the present invention are further described below in conjunction with the accompanying drawings and specific embodiments. It can be understood that the various specific embodiments are not intended to limit the protection scope of the present invention.

[0062] The present invention provides an automobile air conditioning air distribution device. Figure 1 It is a structural schematic diagram of the automobile air conditioning air distribution device of the first embodiment of the present invention. Specifically, the automobile air conditioning air distribution device is arranged in the air supply chamber of the automobile, and the air inlet of the air supply chamber is provided with a blower 9 of the automobile air conditioner; the air inlet of the air supply chamber is usually provided with an internal and external circulation damper, and the blower 9 at the air inlet of the air supply chamber and the internal and external circulation damper can adjust the air volume and temperature entering the air supply chamber.

[0063] The automobile air conditioning air distribution device comprises a partitioned air inlet component, a partitioned air outlet component provided with a plurality of 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 in an air supply cavity; a first air inlet channel and a second air inlet channel are formed by the partitioned air inlet component arranged on the air inlet side of the air supply cavity and passing through the indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2 respectively; the partitioned air outlet component is arranged 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 connected to the partitioned air outlet component after air mixing.

[0064] The parallel connection of the indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2 means that before entering the indoor cooling heat exchanger 1 or the indoor heating heat exchanger 2, it is not necessary to pass through another heat exchanger. Accordingly, the channel entering and exiting the indoor cooling heat exchanger 1 constitutes a first air inlet channel, and the channel entering and exiting the indoor heating heat exchanger 2 constitutes a second air inlet channel. In the first embodiment, the partition air inlet assembly includes a first partition 31 and a mixing damper 32; the first partition 31 is arranged at the air inlet end of the indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2; thereby forming a first air inlet channel and a second air inlet channel passing through the indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2 respectively, and accordingly, the mixing damper 32 is arranged at the air inlet end of the indoor cooling heat exchanger 1 and the 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 The structure diagram of the air distribution device of the automobile air conditioner of the second embodiment of the present invention, wherein the partition air inlet assembly includes a first partition plate 31 and a mixing damper 32. Different from the first embodiment, the first partition plate 31 of the second embodiment is arranged at the air outlet end of the indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2, thereby forming a first air inlet channel and a second air inlet channel passing through the indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2 respectively. Correspondingly, the mixing damper 32 is arranged at the air outlet end of the indoor cooling heat exchanger 1 and the 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.

[0066] The indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2 are combined with the partitioned air outlet assembly to form a first air inlet channel and a second air inlet channel passing through the indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2 respectively, which are not limited to the first embodiment and the second embodiment. Figure 3 The schematic diagram of the structure of the automobile air conditioning air distribution device of the third embodiment of the present invention, wherein the partitioned air intake assembly includes a first partition 31 and two mixing dampers 33; the first partition 31 is arranged between the indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2 to form a first air intake channel and a second air intake channel passing through the indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2 respectively, and the two mixing dampers 33 are respectively arranged in the first air intake channel and the second air intake channel. In the third embodiment, the two mixing dampers 33 are respectively arranged 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-type dampers, fan-type dampers, sliding dampers or butterfly-type dampers.

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

[0068] In the present invention, the first air inlet channel and the second air inlet channel respectively passing through the indoor cooling heat exchanger 1 and the indoor heating heat exchanger 2 are two independent channels, and the airflows have a large degree of mutual influence. Only one mixing damper is used for control (the first embodiment and the second embodiment). When the opening of the mixing damper is adjusted, the airflows of the two channels are affected at the same time, and the accuracy of the completely independent adjustment of the airflows of the two channels is affected. Accordingly, in the third embodiment, the first air inlet channel and the second air inlet channel are both independently controlled by the mixing damper. The airflows of the two channels are highly independent of each other. The dampers can be adjusted separately according to the specific needs of each channel to achieve independent control of the airflows of the two channels without interfering with each other, which can better meet the different requirements of the heating channel and the cooling channel for the airflow.

[0069] The partitioned air outlet assembly of the automobile air conditioning air distribution device includes at least one second partition plate 41 and at least one air outlet damper 42; at least one second partition plate 41 is arranged 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; at least one air outlet damper 42 controls the air volume of 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. At this time, 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 air volume of one air outlet channel.

[0070] Figure 4 It is a structural schematic diagram of the automobile air conditioning air distribution device of the fourth embodiment of the present invention, wherein the partitioned air outlet assembly divides the air outlet side of the air supply cavity into three air outlets, the air outlet E1 can be a defrost damper, the air outlet E12 is a face-blowing damper, and the air outlet E3 is a foot-blowing damper.

[0071] Figure 5 FIG. 1 is a schematic structural diagram of an automobile air conditioning air distribution device according to a fifth embodiment of the present invention, wherein 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 of the air inlet of the air supply cavity. in and humidity in The air outlet of the indoor refrigeration heat exchanger 1 is provided with a second temperature sensor for monitoring the temperature t of the air outlet of the indoor refrigeration heat exchanger 1. cThe air outlet of the indoor heating heat exchanger 2 is provided with a third temperature sensor for monitoring the temperature t of the air outlet of the indoor heating heat exchanger 2. o It should be noted that setting a temperature sensor at the air outlet of the indoor cooling heat exchanger 1 / the air outlet of the indoor heating heat exchanger 2 can be broadly understood as setting a temperature sensor in the medium passage of the indoor cooling heat exchanger 1 or the indoor heating heat exchanger 2, which is used to calculate the temperature of the air outlet of the heat exchanger. In the automobile air-conditioning system, 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, and the 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 air flow passing through the indoor cooling heat exchanger and achieving the purpose of dehumidification. The indoor heating heat exchanger 2 has no dehumidification function. Therefore, it is considered that the humidity of the air at the air outlet of the indoor heating heat exchanger 2 is the humidity of the air at the air inlet of the air supply chamber h in Each air outlet of the partitioned air outlet assembly is provided with a fourth temperature sensor for monitoring the temperature t of each air outlet. o .

[0072] The present invention also provides a control method for an automobile air conditioning air distribution device, which is applicable to the above-mentioned automobile air conditioning air distribution device. Figure 6 This is a flow chart of a control method for an automobile air conditioning air distribution device according to a fifth embodiment of the present invention. The control method comprises the following steps:

[0073] Step S100: Obtain the target humidity h of the target air outlet of the partitioned air outlet component M The target air outlet here is the air outlet in the partition air outlet component that is in a working state. Usually, the air outlet in a working state is different depending on the operating mode of the automobile air conditioner. For example, when it is in the dehumidification function, the target air outlet is the dehumidification damper.

[0074] Step S300: Obtain the air inlet humidity h of the air supply cavity in And the outlet humidity of the indoor refrigeration heat exchanger h c Here, the outlet humidity of the indoor refrigeration heat exchanger is h c According to the principle of refrigeration, the water content of the air after passing through the indoor refrigeration heat exchanger will reach a saturated state (the air's water content will drop significantly after contraction, and condensed water will precipitate and be discharged from the drainage mechanism, commonly known as dehumidification). Its absolute humidity can be directly obtained by looking up the table (saturated water vapor density table) according to its temperature;

[0075] Step S300: According to the humidity h at the air inlet of the air supply chamber in , Indoor refrigeration heat exchanger outlet humidity h c And the target humidity h M Determine the opening degree p of the mixing damper 32 a, step S300 may specifically include the following steps:

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

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

[0078] If not, then execute step S322: adjust the opening of the mixing air door to a Set to 100%. It should be noted that the opening of the mixing damper p a Between 0 and 100%, the opening of the mixing damper p a The percentage of air volume flowing to the indoor heating heat exchanger is the percentage of air volume flowing to the indoor heating heat exchanger, such as the opening degree of the mixing damper p a When it is 0%, 0% of the air volume flows to the indoor heating heat exchanger, that is, 100% of the air volume flows to the indoor cooling heat exchanger; the opening of the mixing damper p a When the air volume is 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 position of the mixing damper.

[0079] The automobile air conditioning air distribution device of the present invention controls the air volume ratio passing through 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 amount and the absolute humidity of the air blown out of each air outlet.

[0080] In step S300, the opening degree p of the mixing air door is determined. a After that, the control method further comprises the following steps:

[0081] Step S410: Obtain the target temperature t of the target air outlet of the partitioned air outlet component M , the air inlet temperature of the air supply chamber t in , the outlet temperature of the indoor heating heat exchanger t h and the opening of the mixing door p a ;

[0082] Step S510: Calculate the temperature t that the air outlet of the indoor refrigeration heat exchanger needs to reach c1 , t c1 =(t M -t h* p a ) / (1-pa ), where Pa≠100%;

[0083] Step S610: According to the temperature t in and temperature t c1 Calculate the power of the indoor refrigeration heat exchanger;

[0084] Step S710: Control the indoor refrigeration heat exchanger according to the power of the indoor refrigeration heat exchanger obtained by calculation until the temperature t of the air outlet of the indoor refrigeration heat exchanger reaches c With temperature t c1 The difference between them is less than a set threshold, which may be an empirical value that can be determined according to customer needs, such as 0.1 degrees.

[0085] In the above embodiment, the temperature of the target air outlet is adjusted by adjusting the power of the indoor refrigeration heat exchanger. In other embodiments, the opening degree p of the mixing air door is determined in step S300. a After that, the control method further comprises the following steps:

[0086] Step S420: Obtain the target temperature t of the target air outlet of the partitioned air outlet component M , the air inlet temperature of the air supply chamber t in , the outlet temperature of the indoor refrigeration heat exchanger t c and the opening of the mixing door p a ;

[0087] Step S520: Calculate the temperature t that the air outlet of the indoor heating heat exchanger needs to reach h1 , the t h1 =t c +(t M -t c ) / pa, where Pa≠0%;

[0088] Step S620: According to the temperature t in and temperature t h1 Calculate the power of the indoor heating heat exchanger;

[0089] Step S720: Control the indoor heating heat exchanger according to the power of the indoor heating heat exchanger obtained by calculation until the temperature t of the air outlet of the indoor heating heat exchanger reaches h With temperature t h1 The difference between them is less than a set threshold. Similarly, the set threshold of 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 according to the ambient temperature to adjust the temperature of the target air outlet.

[0090] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

[0091] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. An automobile air conditioning air distribution device, characterized in that: The automobile air conditioning air distribution device is arranged in the air supply cavity of the automobile, and the air inlet of the air supply cavity is provided with a blower of the automobile air conditioning; The automobile air conditioning air distribution device comprises a partitioned air inlet assembly, a partitioned air outlet assembly provided with a plurality of 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 in the air supply chamber; The partitioned air inlet assembly is arranged on the air inlet side of the air supply cavity and forms a first air inlet channel and a second air inlet channel passing through the indoor cooling heat exchanger and the indoor heating heat exchanger respectively; The partitioned air outlet component is arranged at 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 connected to the partitioned air outlet component after air mixing.

2. The automobile air conditioning air distribution device according to claim 1, characterized in that: The partitioned air intake assembly includes a first partition plate and a mixing air door; The first partition plate is arranged at the air inlet end of the indoor cooling heat exchanger and the indoor heating heat exchanger; The air volume of the first air inlet passage and the second air inlet passage is controlled by the mixing air door.

3. The automobile air conditioning air distribution device according to claim 1, characterized in that: The partitioned air intake assembly includes a first partition plate and a mixing air door; The first partition plate is arranged at the air outlet ends of the indoor cooling heat exchanger and the indoor heating heat exchanger; The air volume of the first air inlet passage and the second air inlet passage is controlled by the mixing air door.

4. The automobile air conditioning air distribution device according to claim 1, characterized in that: The partitioned air intake assembly includes a first partition plate and two mixing air doors; The first partition is respectively arranged between the indoor cooling heat exchanger and the indoor heating heat exchanger; The two mixing dampers are respectively arranged in the first air inlet passage and the second air inlet passage.

5. The automobile air conditioning air distribution device according to claim 1, characterized in that: The partitioned air outlet assembly includes at least one second partition plate and at least one air outlet door; The at least one second partition is arranged 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 automobile air conditioning air distribution device according to claim 2 or 3, characterized in that: The air inlet of the air supply chamber is provided with a first temperature sensor and a humidity sensor; The air outlet of the indoor refrigeration heat exchanger is provided with a second temperature sensor; The air outlet of the indoor heating heat exchanger is provided with a third temperature sensor; Each air outlet of the partitioned air outlet assembly is provided with a fourth temperature sensor.

7. The automobile air conditioning air distribution device according to claim 2 or 3, characterized in that: The mixing damper is a plate-type damper, a fan-type damper, a sliding damper or a butterfly-type damper.

8. A control method for an automobile air conditioning air distribution device, characterized in that: Applicable to the automobile air conditioning air distribution device according to claim 6, the control method comprises the following steps: Get the target humidity h of the target outlet of the partitioned air outlet component M ; Get the air inlet humidity h of the air supply cavity in And the outlet humidity of the indoor refrigeration heat exchanger h c ; Determine the target humidity h of the target outlet of the partitioned air outlet component M Is it less than the humidity h at the air inlet of the air supply chamber? in ; If so, adjust the opening of the mixing door to p a Set to: p a =(h M -h c ) / (h in -h c ); If not, adjust the opening of the mixing air door to a Set to 100%.

9. The control method of the automobile air conditioning air distribution device according to claim 8, characterized in that: The control method further comprises the following steps: Get the target temperature t of the target outlet of the partitioned air outlet component M , the air inlet temperature of the air supply chamber t in , the outlet temperature of the indoor heating heat exchanger t h and the opening of the mixing door p a ; Calculate the temperature t that the air outlet of the indoor refrigeration heat exchanger needs to reach c1 , the t c1 =(t M -t h* p a ) / (1-p a ); According to the temperature t in and temperature t c1 Calculate the power of the indoor refrigeration heat exchanger; According to the power of the indoor refrigeration heat exchanger obtained by calculation, the indoor refrigeration heat exchanger is controlled until the temperature t of the air outlet of the indoor refrigeration heat exchanger is c With temperature t c1 The difference between them is less than a set threshold.

10. The control method of the automobile air conditioning air distribution device according to claim 8, characterized in that: The control method further comprises the following steps: Get the target temperature t of the target outlet of the partitioned air outlet component M , the air inlet temperature of the air supply chamber t in , the outlet temperature of the indoor refrigeration heat exchanger t c and the opening of the mixing door p a ; Calculate the temperature t that the air outlet of the indoor heating heat exchanger needs to reach h1 , the t h1 =t c +(t M -t c ) / p a ; According to the temperature t in and temperature t h1 Calculate the power of the indoor heating heat exchanger; According to the power of the indoor heating heat exchanger obtained by calculation, the indoor heating heat exchanger is controlled until the temperature t of the air outlet of the indoor heating heat exchanger is h With temperature t h1 The difference between them is less than a set threshold.

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