Air duct diversion structure, air control system for vehicle air conditioner and air control method

Abstract

The present invention provides an air duct diversion structure, an air control system and an air control method for an automotive air conditioner. The air duct diversion structure includes: a housing and a diversion component disposed within the housing. The housing is a cavity structure, and the cavity structure includes an air inlet duct provided with an air inlet and an air outlet, a distribution cavity connected to the air outlet side of the air inlet duct, and a plurality of sub-outlet ducts connected to the air outlet side of the distribution cavity. The diversion component is disposed within the distribution cavity to adjust the distribution amount of the total air entering the distribution cavity from the air inlet duct to the plurality of sub-outlet ducts as required. The diversion component includes an upper perforated plate and a lower perforated plate disposed opposite to each other in the up and down direction along the air inlet direction. The upper perforated plate and the lower perforated plate can be controlled to slide independently or be controlled to slide towards or away from each other simultaneously. When the upper perforated plate or the lower perforated plate slides in a direction away from each other, at least the flow path of part of the air flowing from the air inlet into the plurality of sub-outlet ducts is changed.

Description

Technical Field

[0001] The present invention relates to an automotive air conditioner, and more particularly, to an air duct shunt structure, an air control system for an automotive air conditioner, and an air control method. Background Art

[0002] With the development of modern automotive technology, the comfort of the passenger compartment has attracted more and more attention, and the quality of the air conditioning system has been listed as an important evaluation index. When supplying air to the passenger compartment, the structure of the air conditioning duct directly affects this comfort index. The driver is the person with the greatest workload during vehicle driving, so the air supply volume at the air outlet of the driving area air conditioner should be larger. The driver usually adjusts the temperature in the vehicle interior to meet his work comfort, but this will cause passengers in other positions to feel too cold; since the wind speed and temperature distribution entering the passenger compartment from the air outlet need to be uniform, especially in severe cold regions, the defrosting effect directly affects the driver's vision; due to the limited space reserved for the air duct in the vehicle, there are often problems such as insufficient cross-sectional size in some areas and uneven air volume distribution at the face air outlet. Summary of the Invention

[0003] In view of this, the present invention provides an air duct shunt structure, an air control system for an automotive air conditioner, and an air control method to solve at least one of the above problems. Specifically:

[0004] The first aspect of the present invention discloses an air duct shunt structure, which includes:

[0005] A housing and a shunt component disposed in the housing,

[0006] The housing is a cavity structure, and the cavity structure includes an air inlet duct provided with an air inlet and an air outlet, a distribution cavity connected to the air outlet side of the air inlet duct, and a plurality of sub-air outlet ducts connected to the air outlet side of the distribution cavity;

[0007] The shunt component is disposed in the distribution cavity to adjust the distribution amount of the total air entering the distribution cavity from the air inlet duct to the plurality of sub-air outlet ducts as needed;

[0008] The shunt component includes an upper porous plate and a lower porous plate disposed opposite to each other up and down along the air inlet direction, and the upper porous plate and the lower porous plate can be controlled to slide independently or be controlled to slide towards or away from each other simultaneously;

[0009] When the upper porous plate or the lower porous plate slides in a direction away from each other, at least the flow path of part of the air flowing from the air inlet into the plurality of sub-air outlet ducts is changed.

[0010] Further optionally, the shunt component further includes: an upper adjustment shaft and a lower adjustment shaft,

[0011] The upper adjusting shaft meshes with the teeth provided on the lower side surface of the upper perforated plate, and the position of the upper perforated plate in a cross-sectional direction of the cavity structure is adjusted by the upper adjusting shaft.

[0012] The lower adjusting shaft meshes with the teeth provided on the upper side surface of the lower perforated plate, and the position of the lower perforated plate in a cross-sectional direction of the cavity structure is adjusted by the lower adjusting shaft.

[0013] Further optionally, the flow splitting structure further includes: a driving mechanism and a transmission mechanism.

[0014] The driving mechanism is connected to the transmission mechanism and is used to drive the transmission mechanism.

[0015] The transmission mechanism is respectively connected to the upper adjusting shaft and the lower adjusting shaft and is used to drive the upper adjusting shaft and the lower adjusting shaft to rotate respectively.

[0016] Further optionally, both the upper perforated plate and the lower perforated plate are arc-shaped plates, and a plurality of regular through holes are uniformly distributed on the surface of the arc-shaped plates.

[0017] A second aspect of the present invention discloses an air control system for air volume distribution of an automotive air conditioner, and the air control system includes any one of the above-described air duct flow splitting structures.

[0018] Further optionally, the air control system further includes: an air volume detector, an air volume adjustment switch, and a controller.

[0019] The air duct flow splitting structure is connected to the outlet of the main air supply duct of the automotive air conditioner through the air inlet of the cavity structure, and is respectively connected to a plurality of sub-outlet ducts of the automotive air conditioner through the plurality of sub-outlet ducts. Among them, the air supply to the vehicle interior through the plurality of sub-outlet ducts includes: one driver's air outlet and a plurality of passenger air outlets.

[0020] The air volume detector corresponds to the plurality of sub-outlet ducts one by one, and is used to detect the plurality of sub-outlet ducts, and feed back the current actual air volume value of each sub-outlet duct among the plurality of sub-outlet ducts to the controller.

[0021] The air volume adjustment switch corresponds to the plurality of sub-outlet ducts one by one, and is used to send a current required air volume instruction for each sub-outlet duct to the controller in response to the adjustment by the user.

[0022] The controller can control the current required total air volume according to the current required air volume instruction and the current actual air volume value, and adjust the air duct flow splitting structure to control the air volume distributed to each sub-outlet duct.

[0023] Further optionally, the air control system further includes: a blower, which is used to supply air to the vehicle interior through the flow splitting structure.

[0024] Wherein, the controller obtains the current required total air volume according to the current required air volume command of each sub-air outlet, and adjusts the blower to supply air based on the current required total air volume to control the current actual total air volume.

[0025] Further optionally, the air volume control system further includes: an air outlet grille and an angle sensor arranged on the side of each sub-air outlet,

[0026] The air outlet grille is used to adjust the wind direction of the cavity outlet;

[0027] The angle sensor is used to detect the opening angle of the air outlet grille;

[0028] Wherein, the angle information of the air outlet grille is collected by the position sensor and sent to the controller. When the controller determines that any air outlet grille is closed, the controller adjusts the current required total air volume and the air duct diversion structure stops distributing air volume to the sub-air outlet of the closed air outlet grille.

[0029] Further optionally, the air volume control system distributes the air volume of the multiple sub-air outlets according to an initial air volume distribution rule,

[0030] Wherein the initial air volume distribution principle is: when the vehicle air conditioner is started, the initial driver air volume distributed to the driver's air outlet is higher than the initial occupant air volume distributed to each occupant air outlet among the multiple occupant air outlets, and the initial occupant air volume of each occupant air outlet is the same, and the initial driver air volume - the initial occupant air volume = a preset air volume difference.

[0031] The third aspect of the present invention discloses an air volume control method for vehicle air conditioner air volume distribution. The air volume control method uses any one of the above-mentioned air duct diversion structures, and includes:

[0032] When the vehicle air conditioner is started, the total air volume of the air conditioner is initially distributed according to the initial air volume distribution rule: the air duct diversion structure is used to distribute the current total air volume, so that the initial driver air volume distributed to the driver's air outlet is higher than the initial occupant air volume distributed to each occupant air outlet, wherein the initial occupant air volume of each occupant air outlet is the same, and the initial driver air volume - the initial occupant air volume = a preset air volume difference;

[0033] During the operation of the vehicle air conditioner, when adjusting the air volume of the driver's air outlet and / or each occupant air outlet, adjust the current actual total air volume and the air duct diversion structure so that the air volume of the driver's air outlet and each occupant air outlet reaches the user's demand.

[0034] Further optionally, the adjusting the current actual total air volume and the air duct diversion structure includes:

[0035] Calculate the current total required air volume based on the current required air volume of the driver's air outlet and the current required air volumes of the respective occupant air outlets;

[0036] Adjust the blower in the vehicle air conditioner to adjust the current actual total air volume to the current required total air volume;

[0037] Change the flow paths of part of the air flowing from the air inlet into the multiple sub-air ducts by adjusting the air duct diversion structure.

[0038] Advantageous effects: The present invention can adjust the air volume of each air outlet by designing the internal structure of the air duct and controlling the rotation of the adjustment shaft by a motor to adjust the position of the perforated plate. This invention can adaptively adjust the position of the perforated plate and thus control the air volume of each air outlet under different blower air volumes and different opening and closing states of the air outlets. The electric gear perforated plate has two upper and lower perforated plates that are symmetric left and right, and the right perforated plate is lower, so the air volume flowing through the right perforated plate is the largest, and the corresponding air outlet position here is the driver's cab; several air guiding holes are opened on the perforated plate, so that it can not only adaptively meet the different air volume and different temperature requirements of the driver's cab and the passenger compartment, but also ensure the air volume requirements of other air outlets except the driver's cab; therefore, it can meet the comfort of both the driver's cab and the passenger compartment without reducing the temperature inside the vehicle and can also achieve the purpose of energy saving, which is of great significance for new energy vehicles; when defrosting in winter in cold regions, it improves the uniformity of the air volume of each defrosting air outlet and is also beneficial to improving the defrosting effect. Description of the Drawings

[0039] By referring to the accompanying drawings and describing its exemplary embodiments in detail, the above and other objects, features and advantages of the present disclosure will become more apparent. The following described drawings are only some embodiments of the present disclosure, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0040] Figure 1 Schematic diagram of the air duct diversion structure in an embodiment of the present invention (one);

[0041] Figure 2 Schematic diagram of the air duct diversion structure in an embodiment of the present invention (two);

[0042] Figure 3 Partial schematic diagram of the cooperation between the adjustment shaft and the perforated plate in an embodiment of the present invention;

[0043] Figure 4 Schematic diagram of the perforated plate in an embodiment of the present invention;

[0044] Figure 5 Logic diagram of the air volume control method in an embodiment of the present invention.

[0045] In the figure: 101 - upper adjustment shaft; 102 - lower adjustment shaft; 201 - lower perforated plate; 202 - upper perforated plate; 3 - air inlet duct; 401 - first passenger air outlet; 402 - second passenger air outlet; 403 - driver's air outlet; 501 - air volume detector; 601 - first passenger air outlet grille; 602 - second passenger air outlet grille; 603 - driver's air outlet grille. Detailed implementation manners

[0046] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. Like reference numerals in the figures denote like or similar parts, and thus their repetitive description will be omitted.

[0047] In addition, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of this disclosure. However, those skilled in the art will realize that the technical solutions of this disclosure can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of this disclosure.

[0048] The block diagrams shown in the accompanying drawings are only functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0049] It should be understood that although terms such as first, second, and third may be used herein to describe various structures, these structures should not be limited by these terms. These terms are used to distinguish one structure from another. Thus, the first structure discussed below can be referred to as the second structure without departing from the teachings of the concept of this disclosure. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0050] Those skilled in the art can understand that the drawings are only schematic diagrams of example embodiments, and the modules or processes in the drawings are not necessarily essential for implementing this disclosure, and thus cannot be used to limit the protection scope of this disclosure.

[0051] Currently, in automotive air conditioners, due to structural and spatial limitations, the air volume uniformity at each air outlet of the HVAC (Heating, Ventilation, and Air Conditioning) duct is poor; the air volume and air distribution uniformity at each air outlet of the HVAC duct cannot be automatically adjusted within a certain range; moreover, due to the fixation of the main duct structure, when some air outlets are in the closed state, the air volume uniformity at each air outlet cannot be guaranteed; the different air volume and temperature comfort requirements of the driver's cabin and the passenger cabin cannot be effectively adjusted; during winter defrosting, due to different air volumes at each defrost air outlet, the defrosting effect is poor. The present invention provides a duct diversion structure near the air outlet of the automotive air conditioner duct. There is a set of electric gear perforated plates in the duct diversion structure, and air volume detectors are arranged at positions near each air outlet in the air conditioner duct. By transmitting the signal of the switch gear of the air outlet, the air volume detection signal of each air outlet, and the signal output by the independent air volume adjustment key of each air outlet to the controller for analysis and feedback control, the air volume at the air outlet is intelligently regulated to meet the needs of the driver and passengers. At the initial startup, it is set that the air volume at the driver's air outlet is higher than that at other air outlets, which can preferentially ensure the driver's experience.

[0052] To further illustrate the present invention, the following specific embodiments are provided.

[0053] Example 1 in real time

[0054] As Figures 1-4 shown, in this embodiment, a duct diversion structure is provided, which includes: a housing and a diversion component arranged in the housing. The housing is a cavity structure, and the cavity structure includes an air inlet duct 3 provided with an air inlet and an air outlet, a distribution cavity connected to the air outlet side of the air inlet duct, and a plurality of sub-air outlet ducts connected to the air outlet side of the distribution cavity; the diversion component is arranged in the distribution cavity to adjust the distribution amount of the total air entering the distribution cavity from the air inlet duct to the plurality of sub-air outlet ducts as needed; the diversion component includes an upper perforated plate 202 and a lower perforated plate 201 arranged oppositely up and down along the air inlet direction. The upper perforated plate and the lower perforated plate can be controlled to slide independently or be controlled to slide towards or away from each other simultaneously; when the upper perforated plate or the lower perforated plate slides away from each other, at least the flow path of part of the air flowing from the air inlet into the plurality of sub-air outlet ducts changes. Based on the duct diversion structure, the corresponding air volume can be distributed to each air outlet according to the preset demand when the air conditioner is started, and the distribution of the air volume can be changed through the diversion component to meet the different needs of the driver and passengers at any time.

[0055] In some optional implementation manners, such as Figures 1-2As shown, the flow splitting component further includes: an upper adjusting shaft 101 and a lower adjusting shaft 102. The upper adjusting shaft meshes with the teeth provided on the lower side of the upper perforated plate, and the position of the upper perforated plate in a cross-sectional direction of the cavity structure is adjusted through the upper adjusting shaft; the lower adjusting shaft meshes with the teeth provided on the upper side of the lower perforated plate, and the position of the lower perforated plate in a cross-sectional direction of the cavity structure is adjusted through the lower adjusting shaft. Optionally, both sides of the perforated plate are connected to the inner side wall of the cavity structure through slide rails, enabling sliding along a preset direction, and the position of the perforated plate on the slide rails is adjusted through the adjusting shaft. As Figure 2 As described, it is a partial structure of the perforated plate, and teeth are provided below this part of the perforated plate, which mesh with the teeth on the adjusting shaft.

[0056] In addition, the flow splitting component can be further improved. At this time, in some other alternative ways, an adjusting rod (not shown in the figure) along the air supply direction is provided. One end of the adjusting rod is fixedly connected to the perforated plate, and the other end is connected to a power mechanism. Through the adjusting rod, the upper perforated plate and the lower perforated plate can be moved simultaneously or separately along the air supply direction.

[0057] In some alternative implementation manners, the flow splitting structure further includes: a driving mechanism and a transmission mechanism. The driving mechanism is connected to the transmission mechanism for driving the transmission mechanism; the transmission mechanism is respectively connected to the upper adjusting shaft and the lower adjusting shaft, and drives the upper adjusting shaft and the lower adjusting shaft to rotate respectively through the transmission mechanism.

[0058] In some alternative implementation manners, as Figures 3-4 shown, both the upper perforated plate and the lower perforated plate adopt arc-shaped plates, and a plurality of regular through holes 7 are uniformly distributed on the surface of the arc-shaped plates. As Figure 4 shown, the shape of the through hole can be circular, square, triangular, oval, etc.

[0059] Embodiment 2

[0060] As Figures 1-5 shown, in this embodiment, an air control system for an automotive air conditioner is provided. The air control system includes any one of the air duct flow splitting structures in Embodiment 1. In addition, the air control system is further provided with an air volume detector, an air volume adjustment switch, and a controller.

[0061] The air duct flow splitting structure is connected to the air supply main duct outlet of the automotive air conditioner through the air inlet of the cavity structure, and is connected to a plurality of sub-air outlets of the automotive air conditioner in one-to-one correspondence through the plurality of sub-air ducts. Among them, the air supply to the vehicle interior through the plurality of sub-air outlets includes: one main driver air outlet and a plurality of occupant air outlets.

[0062] The air volume detector 501 corresponds to each of the multiple sub-air outlets, and is used to detect the multiple sub-air outlets, and feed back the current actual air volume value of each sub-air outlet in the multiple sub-air outlets to the controller.

[0063] The air volume adjustment switch corresponds to each of the multiple sub-air outlets, and is used to send the current required air volume instruction of each sub-air outlet to the controller in response to the user's adjustment. The air volume adjustment switch has multiple gears. Optionally, the air volume of each air outlet can be adjusted individually. It is required that the air volume adjustment control range of each air outlet is 40% - 100%, which can be adjusted in four gears, namely 40%, 60%, 80%, and 100%. That is, the minimum air volume of each air outlet can only be adjusted to 40% of the maximum air volume corresponding to when the air outlet grille is fully open.

[0064] The controller can control the current required total air volume according to the current required air volume instruction and the current actual air volume value, and adjust the air duct diversion structure to control the air volume distributed to each sub-air outlet.

[0065] In some alternative implementation manners, the air control system further includes: a blower for sending air into the vehicle through the diversion structure. The controller obtains the current required total air volume according to the current required air volume instruction of each sub-air outlet, and adjusts the blower to send air based on the current required total air volume to control the current actual total air volume. Optionally, there are three manually adjustable blower gears (speeds), and the corresponding controlled air volume ranges are 0 - 200m 3 / h, 150 - 350m 3 / h, 300 - 500m 3 / h.

[0066] In some alternative implementation manners, the air control system further includes: an air outlet grille and an angle sensor (not shown in the figure) provided on the side of each sub-air outlet. The air outlet grille can adjust the wind direction of the cavity outlet; the angle sensor is used to detect the opening angle of the air outlet grille. The angle information of the air outlet grille is collected by the position sensor and sent to the controller. When the controller determines that any air outlet grille is closed, the controller adjusts the current required total air volume and the air duct diversion structure to stop distributing air volume to the sub-air outlet of the closed air outlet grille. For example, when three air outlets are used, it includes the driver's air outlet grille 603 provided at the driver's air outlet 403, the first passenger air outlet grille 601 provided at the first passenger air outlet 401, and the second passenger air outlet grille 602 provided at the second passenger air outlet 402.

[0067] In some alternative implementation manners, the air control system distributes the air volume of the multiple sub-air outlets according to an initial air volume distribution rule. The initial air volume distribution principle is as follows: when the vehicle air conditioner is started, the initial air volume for the driver's outlet is higher than the initial air volume for each occupant outlet among the multiple occupant outlets, and the initial air volume for each occupant outlet is the same. The initial air volume for the driver's outlet - the initial air volume for the occupant outlet = a preset air volume difference. For example, when there is one driver's outlet and two occupant outlets, the air volume distribution ratio adopted can be set as X = Q 总 *32%, Y = Q 总 *32%, Z = Q 总 *36%, where X and Y are the current required air volume values for the two occupant outlets, Z is the current required air volume value for the driver's outlet, and Q 总 is the total air volume at the initial moment, and the default distribution is performed according to the above distribution ratio at the initial moment.

[0068] In this embodiment, an air volume detector for detecting the air volume size and a sensor for detecting the opening and closing of the air outlet grille are provided at each air outlet, and an independent control key for each air outlet is provided on the control panel. The signals output by these devices are transmitted to the controller, and the controller intelligently regulates the fan speed, motor, etc. according to the set program, so that the air volume and thermal comfort of each air outlet reach the state required by the occupants.

[0069] Embodiment 3

[0070] In this embodiment, an air control method for a vehicle air conditioner is provided. The air control method uses any one of the air duct diversion structures in Embodiment 1 or adopts any one of the air control systems in Embodiment 2.

[0071] In this air control method: when the vehicle air conditioner is started, the total air volume of the air conditioner is initially distributed according to the initial air volume distribution rule; during the operation of the vehicle air conditioner, when adjusting the air volume of the driver's outlet and / or each occupant outlet, the current actual total air volume and the air duct diversion structure are adjusted to make the air volume of the driver's outlet and each occupant outlet reach the user's demand. Optionally, the initial air volume distribution rule: the current total air volume is distributed by using the air duct diversion structure, so that the initial air volume for the driver's outlet is higher than the initial air volume for each occupant outlet, where the initial air volume for each occupant outlet is the same, and the initial air volume for the driver's outlet - the initial air volume for the occupant outlet = a preset air volume difference.

[0072] Further, the adjustment of the current actual total air volume and the air duct diversion structure includes: calculating the current required total air volume according to the current required air volume of the driver's air outlet and the current required air volume of each occupant's air outlet; adjusting the blower in the automotive air conditioner to adjust the current actual total air volume to the current required total air volume; and changing the flow path of part of the air flowing from the air inlet into the multiple sub-air ducts by adjusting the air duct diversion structure.

[0073] To further illustrate the air control method of the automotive air conditioner in the present invention, in combination with Figures 1-5 as shown, the following specific working process is also provided.

[0074] In usage scenario 1

[0075] When the blower is turned on, the blower gear is automatically adjusted to the maximum, the air volume of each air outlet is adjusted to the maximum, and each air outlet grille is automatically opened to the maximum opening degree, which is beneficial to quickly reaching the set temperature in the vehicle interior; of course, the occupants and the driver can also manually adjust the air outlet grille angle (only changing the wind direction without changing the air volume) and the opening and closing state, the air volume adjustment keys of each air outlet, and the blower gear (speed) according to the actual air volume and heat comfort requirements. At this time, there are three gears for the manually adjustable blower gear (speed), and the controllable air volume ranges are 0 - 200 m 3 / h, 150 - 350 m 3 / h, 300 - 500 m 3 / h. When all the air outlet grilles are opened and the blower gear is fixed, when adjusting the air volume of one or more air outlets, according to the air volume values displayed on the air volume adjustment keys of each air outlet, they are converted into electrical signals and fed back to the controller. Then, the controller program will automatically calculate the required total air volume at this time according to the preset air volume relationship. If the calculated total air volume is less than the lowest value of the air volume that can be controlled by this gear, the controller will automatically lower the blower gear by one level until the calculated total air volume is greater than or equal to the lowest value that can be controlled by this gear. At this time, the controller will automatically output a signal and act on the blower to control the blower speed to reach the required air volume value. At the same time, the controller controls the adjustment shaft to synchronously adjust the positions of the upper and lower perforated plates, thereby adjusting the air volume of each air outlet. If the requirements are still not met, the opening and closing states of each air outlet grille, the air volume of each air outlet, and the blower gear (speed) can be adjusted in a loop on this basis. When the air volume of the air outlet cannot be adjusted to the required air volume, at this time, only the operation of closing the air outlet grille can be implemented.

[0076] Usage scenario 2

[0077] When the fan is turned on, all the air outlet grilles are fully opened, the fan speed is fixed without adjusting the air volume of each air outlet, the controller controls the adjusting shaft at this time to adjust the position of the perforated plate, and then adjusts the air volume of each air outlet. If the requirements are still not met, the opening and closing states of each air outlet grille, the air volume of each air outlet, and the fan speed can be further adjusted on this basis. When the air volume of the air outlet cannot be adjusted to the required air volume, only the operation of closing the air outlet grille can be implemented at this time.

[0078] Usage Scenario 3

[0079] When the fan is turned on and no air outlet grille is closed, manually adjust the fan speed. At this time, the controller controls the adjusting shaft to adjust the position of the perforated plate, and then adjusts the air volume of each air outlet. If the requirements are not met, the air volume of each air outlet can be further adjusted on this basis. The adjustment method follows Usage Scenario 1. If the requirements are still not met, the opening and closing states of each air outlet grille, the air volume of each air outlet, and the fan speed can be adjusted in a loop again on this basis. When the air volume of the air outlet cannot be adjusted to the required air volume, only the operation of closing the air outlet grille can be implemented at this time.

[0080] Usage Scenario 4

[0081] When the fan is turned on and one or more air outlet grilles are closed, the controller controls the adjusting shaft at this time to adjust the position of the perforated plate, and then adjusts the air volume of each air outlet. If the requirements are not met, the fan speed can be adjusted on this basis. When adjusting the fan speed, the controller controls the adjusting shaft again to adjust the position of the perforated plate, and then adjusts the air volume of each air outlet. If the requirements are not met, the air volume of each air outlet can be further adjusted on this basis. The adjustment method is the same as that in Embodiment 1. If the requirements are still not met, the opening and closing states of each air outlet grille, the air volume of each air outlet, and the fan speed can be adjusted in a loop again on this basis. When the air volume of the air outlet cannot be adjusted to the required air volume, only the operation of closing the air outlet grille can be implemented at this time.

[0082] In summary, in the present invention, a set of electrically adjustable shafts and toothed perforated plates that can move up and down are provided near the air outlet of the automotive air-conditioning duct. The perforated plates are distributed vertically. This structure can better ensure that the air volume at the driver's air outlet is higher than that at other air outlets, meeting the comfort requirements of both the driver's cab and the passenger compartment while avoiding energy waste. Each air outlet can independently adjust the air volume and keep the air volume at other air outlets unchanged. According to other manual adjustment settings, the system can adaptively adjust the air volume and comfort level of each air outlet as needed. When one or more air grilles are manually closed, the system can redefine the position of the perforated plate based on the detected feedback data to make the air volume at other unclosed air outlets reach the original air outlet state.

[0083] The exemplary embodiments of the present disclosure have been specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structures, arrangements, or implementation methods described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. An air duct diversion structure, characterized in that, It includes: a housing and a flow splitting component disposed within the housing, the housing being a cavity structure, the cavity structure including an air inlet duct provided with an air inlet and an air outlet, a distribution cavity connected to the air outlet side of the air inlet duct, and a plurality of sub-outlet ducts connected to the air outlet side of the distribution cavity; the flow splitting component is disposed within the distribution cavity to adjust the distribution amount of the total air entering the distribution cavity from the air inlet duct to the plurality of sub-outlet ducts as needed; the flow splitting component includes an upper perforated plate and a lower perforated plate disposed opposite to each other in the up and down direction along the air inlet direction, and the upper perforated plate and the lower perforated plate can be individually controlled to slide or be simultaneously controlled to slide towards or away from each other; when the upper perforated plate or the lower perforated plate slides in a direction away from each other, at least the flow path of part of the air flowing from the air inlet into the plurality of sub-outlet ducts is changed; the flow splitting component further includes: an upper adjustment shaft and a lower adjustment shaft, the upper adjustment shaft, meshing with teeth provided on the lower side surface of the upper perforated plate, adjusts the position of the upper perforated plate in a cross-sectional direction of the cavity structure through the upper adjustment shaft, the lower adjustment shaft, meshing with teeth provided on the upper side surface of the lower perforated plate, adjusts the position of the lower perforated plate in a cross-sectional direction of the cavity structure through the lower adjustment shaft.

2. The air duct diversion structure according to claim 1, wherein The flow splitting structure further includes: a driving mechanism and a transmission mechanism, the driving mechanism, connected to the transmission mechanism, for driving the transmission mechanism; the transmission mechanism, respectively connected to the upper adjustment shaft and the lower adjustment shaft, for respectively driving the upper adjustment shaft and the lower adjustment shaft to rotate.

3. The air duct diversion structure according to claim 2, wherein Both the upper perforated plate and the lower perforated plate are arc-shaped plates, and a plurality of regular through holes are uniformly distributed on the surface of the arc-shaped plates.

4. An air control system for an automotive air conditioner, characterized in that: The air duct flow splitting structure according to any one of claims 1-3 is adopted.

5. The air control system of the automotive air conditioner according to claim 4, characterized in that, The air control system further includes an air volume detector, an air volume adjustment switch, and a controller, the air duct flow splitting structure is connected to the air supply main duct outlet of the vehicle air conditioner through the air inlet of the cavity structure, and is connected to a plurality of sub-outlets of the vehicle air conditioner through the plurality of sub-outlet ducts one by one, wherein the air supply to the vehicle interior through the plurality of sub-outlets includes: a main driver outlet and a plurality of occupant outlets; the air volume detector, corresponding to the plurality of sub-outlets one by one, for detecting the plurality of sub-outlets, and feeding back the current actual air volume value of each sub-outlet among the plurality of sub-outlets to the controller; the air volume adjustment switch, corresponding to the plurality of sub-outlets one by one, for sending a current required air volume instruction for each sub-outlet to the controller in response to user adjustment; the controller can control the current required total air volume according to the current required air volume instruction and the current actual air volume value, and adjust the air duct flow splitting structure to control the air volume distributed to each sub-outlet.

6. The air control system according to claim 5, characterized in that, The air control system further includes: a blower, for supplying air to the vehicle interior through the flow splitting structure, wherein the controller obtains the current required total air volume according to the current required air volume instruction of each sub-outlet, and adjusts the blower to supply air based on the current required total air volume to control the current actual total air volume.

7. The air control system according to claim 6, wherein The air control system further includes: an air outlet grille and an angle sensor disposed on the side of each sub-outlet, The air outlet grille is used to adjust the air direction of the cavity outlet; The angle sensor is used to detect the opening angle of the air outlet grille; Wherein the angle information of the air outlet grille is collected by the angle sensor and sent to the controller. When the controller determines that any air outlet grille is closed, the controller adjusts the current required total air volume and the air duct diversion structure stops distributing air volume to the sub-outlet of the closed air outlet grille.

8. The air control system according to claim 7, characterized in that The air control system distributes the air volume of the multiple sub-outlets according to the initial air volume distribution rule, Wherein the initial air volume distribution rule is: when the vehicle air conditioner is started, the initial driver air volume distributed to the driver's outlet is higher than the initial passenger air volume distributed to each passenger outlet among the multiple passenger outlets. The initial passenger air volume of each passenger outlet is the same, and the initial driver air volume - the initial passenger air volume = a preset air volume difference.

9. A method for controlling air flow in an automotive air conditioner, characterized in that, The air control method uses the air duct diversion structure described in any one of claims 1-3, and includes: When the vehicle air conditioner is started, the total air volume of the air conditioner is initially distributed according to the initial air volume distribution rule: the air duct diversion structure is used to distribute the current total air volume, so that the initial driver air volume distributed to the driver's outlet is higher than the initial passenger air volume distributed to each passenger outlet, wherein the initial passenger air volume of each passenger outlet is the same, and the initial driver air volume - the initial passenger air volume = a preset air volume difference; During the operation of the vehicle air conditioner, when adjusting the air volume of the driver's outlet and / or each passenger outlet, adjust the current actual total air volume and the air duct diversion structure to make the air volume of the driver's outlet and each passenger outlet reach the user's demand.

10. The air control method according to claim 9, characterized in that, The adjustment of the current actual total air volume and the air duct diversion structure includes: Calculate the current required total air volume according to the current required air volume of the driver's outlet and the current required air volume of each passenger outlet; Adjust the blower in the vehicle air conditioner to adjust the current actual total air volume to the current required total air volume; By adjusting the air duct diversion structure, the flow path of part of the air flowing from the air inlet into the multiple sub-air ducts is changed.

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