Lightweight and low-cost rear independent air conditioning structure

Abstract

The present invention discloses a lightweight, low-cost rear-row independent air conditioning structure; it includes a blower arranged at one end of an air duct, and an evaporator core and a warm air core arranged in the air duct after the blower outlet; a temperature damper and a mode damper controlled by a rocker mechanism are arranged in the air duct after the evaporator core in sequence; the rocker mechanism is driven by a track disc coordinated by a damper actuator; the track disc includes a temperature damper track line and a mode damper track line, and can drive the rocker mechanism to control the temperature damper to open a cooling area or a heating area by the temperature damper track line, and drive the rocker mechanism to control the mode damper to open the rear-row air conditioning face outlet, open the rear-row air conditioning foot outlet, or open the rear-row air conditioning face outlet and the rear-row air conditioning foot outlet at the same time. The present invention uses a track disc to drive the two dampers to work at the same time, and simultaneously meet the adjustment of the air outlet mode and temperature.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle air-conditioning manufacturing, and in particular to a lightweight and low-cost rear-row independent air-conditioning structure. Background Art

[0002] With the development of the aging population, the encouragement of fertility policies, and the increasing number of families with two children, people's car-buying concepts have also changed, and seven-seater family cars with larger space are becoming more and more popular. However, the large space inside the vehicle cannot meet people's current high demand for driving experience by only using a front air-conditioning system. The temperature and comfort requirements of the seven rear passengers need to be met by an additional rear air-conditioning system.

[0003] In the current global energy crisis, whether it is from the demand for energy conservation and emission reduction of traditional fuel vehicles or the problem of mileage anxiety of new energy vehicles, the goal of lightweighting the entire vehicle is the unremitting pursuit of the entire automotive industry chain.

[0004] The rear independent air conditioner can set different air outlet temperatures and air volumes at each air outlet according to the needs of the rear passengers. The precise control of the air outlet temperature can be achieved by adjusting the position of the temperature damper in the rear air conditioner, and the air outlet mode can be achieved by adjusting the position of the face damper or foot damper in the rear independent air conditioner.

[0005] The following three methods are generally used in the prior art to achieve the above purpose:

[0006] Solution 1: Each damper in the rear independent air conditioning box is controlled independently. The rear independent air conditioning box generally has two modes of air outlets, namely face outlets and foot outlets, and there will be corresponding face dampers and foot dampers; and the adjustment of the air outlet temperature of the air conditioner requires the temperature damper in the air conditioning box to meet the requirements. The entire rear independent air conditioner requires three independent damper actuators to drive these three dampers to achieve the wind mode (full face mode, full foot mode, face and foot mixed mode) adjustment and air outlet temperature adjustment of the rear passenger compartment of the vehicle for the conventional requirements of wind field comfort.

[0007] This solution has the highest degree of freedom in controlling the air outlet temperature and air outlet mode of the rear air conditioner, but the price to pay is a large number of damper actuators and a variety of damper forms. The space requirement for the entire rear air conditioner is high, and due to multiple damper actuators, the cost of the entire rear air conditioner is relatively high.

[0008] Solution 2: Independent control of temperature damper and combination of track disc. The rear independent air conditioning box still uses two modes of dampers, but these two dampers are controlled by the track disc structure to achieve different air distribution modes; and the control of the air outlet temperature is still achieved by controlling the temperature damper position through the temperature damper actuator.

[0009] This solution uses the idea that the track disc can jointly control two dampers, reducing the use of one damper actuator, and the cost is slightly more advantageous than Solution 1. However, the weight of the entire rear independent air conditioner will not be significantly reduced by adding a set of track disc parts.

[0010] Solution 3: Optimize the mode damper structure so that the face air outlet and foot air outlet of the rear independent air conditioner can be controlled by only one structure of mode damper, and the temperature is also controlled by only one damper (temperature damper). Then the entire rear independent air conditioner only needs two dampers and two damper actuators to achieve the temperature comfort and air outlet mode requirements.

[0011] Although the prior art reduces the types of air-conditioning dampers, the number of damper actuators has not decreased compared to Solution 2. Therefore, in actual applications, the cost caused by the damper actuators will not be reduced to a great extent. Summary of the invention

[0012] In view of the above-mentioned defects of the prior art, the present invention provides a lightweight and low-cost rear-row independent air-conditioning structure, the purpose of which is to achieve stepless adjustment of the temperature and air outlet mode of the rear-row independent air-conditioning through the cooperation of a damper actuator and a group of track discs, which can not only meet the functions of the rear-row independent air-conditioning but also reduce the related parts in the air-conditioning box structure, thereby truly achieving the purpose of low cost and multi-function.

[0013] To achieve the above objectives, the present invention discloses a lightweight, low-cost rear-row independent air-conditioning structure; including a blower arranged at one end of an air duct, and an evaporator core and a heater core arranged in the air duct after the blower outlet.

[0014] Wherein, a temperature damper and a mode damper controlled by a rocker mechanism are sequentially arranged in the air duct behind the evaporator core. According to the actual needs of the passengers, the temperature damper and the mode damper are controlled by the rocker mechanism so that the airflow in the air duct flows through the cooling area or the heating area in the air duct and is controllably blown out from the rear air conditioning face outlet and / or the rear air conditioning foot outlet;

[0015] The rocker mechanism is driven by a track disc coordinated by the damper actuator;

[0016] The track disc includes a temperature damper track line and a mode damper track line, and can drive the rocker arm mechanism to control the temperature damper to open the cooling area or the heating area by the temperature damper track line, and drive the rocker arm mechanism to control the mode damper to open the rear air conditioner face air outlet, open the rear air conditioner foot air outlet, or open the rear air conditioner face air outlet and the rear air conditioner foot air outlet at the same time by the mode damper track line;

[0017] When the cooling area is turned on, the evaporator core starts working, and the heater core arranged in the heating area stops working;

[0018] When the heating area is turned on, the evaporator core stops working, and the warm air core arranged in the heating area starts working.

[0019] Preferably, the track disc comprises two planes, one side comprises the temperature damper track line and the mode damper track line, and the other side is provided with a structural spline structure connected to the damper actuator.

[0020] Preferably, the damper actuator is a stepper motor, which is connected to the spline structure of the track disk. The actuator rotates the core motor, links the lever, and then links the track disk, thereby completing the opening or closing of different dampers.

[0021] Beneficial effects of the present invention:

[0022] The present invention optimizes the damper structure and reorganizes the coordination between the track disc and the damper actuator. Compared with the traditional rear independent air conditioner, it not only has one less mode damper part, but also one less damper actuator. By maximizing the optimization of the track curve within a track disc, a track disc can drive the mode damper and the temperature damper at the same time, which can not only meet the wind distribution mode requirements of the rear independent air conditioner, but also achieve full-area temperature regulation of the air outlet temperature from cold to hot and then to cold in this independent mode. Since the types of dampers are reduced and the number of damper actuators is reduced, the size of the rear independent air conditioner can be further optimized, truly achieving multiple benefits of not sacrificing the comfort of the rear passengers but also reducing costs and reducing quality.

[0023] The specific structure and the technical effects produced are further explained to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic structural diagram of an embodiment of the present invention is shown.

[0025] Figure 2 A cross-sectional structural schematic diagram of an embodiment of the present invention is shown.

[0026] Figure 3 A schematic diagram showing a state in which airflow passes through a cooling area and is blown out from a blowing surface outlet in one embodiment of the present invention.

[0027] Figure 4 A schematic diagram showing the state in which airflow passes through the heating area and is blown out from the rear air conditioning foot outlet in one embodiment of the present invention.

[0028] Figure 5 A schematic diagram of the structure of a track disk in one embodiment of the present invention is shown.

[0029] Figure 6 A schematic diagram of the connection structure between the track disk, the rocker arm mechanism and the damper actuator in one embodiment of the present invention is shown.

[0030] Figure 7 An expanded view of a mode damper trajectory line in one embodiment of the present invention is shown.

[0031] Figure 8 An expanded diagram of the temperature damper trajectory in one embodiment of the present invention is shown. DETAILED DESCRIPTION

[0032] Example

[0033] like Figures 1 to 6 As shown, a lightweight and low-cost rear-row independent air-conditioning structure comprises a blower 3 arranged at one end of the air duct, and an evaporator core 4 and a heater core 6 arranged in the air duct after the outlet of the blower 3.

[0034] Among them, a temperature damper 8 and a mode damper 7 controlled by a rocker mechanism 12 are sequentially arranged in the air duct behind the evaporator core 4. According to the actual needs of the passengers, the temperature damper 8 and the mode damper 7 are controlled by the rocker mechanism 12, so that the airflow in the air duct flows through the cooling area or the heating area in the air duct, and then is controllably blown out from the rear air conditioning face outlet 1 and / or the rear air conditioning foot outlet 2;

[0035] The rocker mechanism 12 is driven by the track disc 9 coordinated by the damper actuator 5;

[0036] The track disc 9 includes a temperature damper track line 11 and a mode damper track line 10. When the temperature damper track line 11 drives the rocker arm mechanism 12 to control the temperature damper 8 to open the cooling area, or when the heating area is opened, the mode damper track line 10 can simultaneously drive the rocker arm mechanism 12 to control the mode damper 7 to open the rear air conditioning face air outlet 1, open the rear air conditioning foot air outlet 2, or open the rear air conditioning face air outlet 1 and the rear air conditioning foot air outlet 2 at the same time.

[0037] When the cooling area is turned on, the evaporator core 4 starts working, and the heater core 6 set in the heating area stops working;

[0038] When the heating area is turned on, the evaporator core 4 stops working, and the heater core 6 arranged in the heating area starts working.

[0039] The present invention is a lightweight and low-cost rear-seat independent air-conditioning structure (Rear HVAC) for automobiles. The purpose of reducing weight is achieved by optimizing the internal structure of the rear-seat independent air-conditioning box. A linkage-controlled track disc structure is adopted, which can not only meet the functional requirements of conventional automobiles for rear-seat air-conditioning, but also reduce the use of related parts, thereby ensuring the low cost and light weight of the rear-seat independent air-conditioning structure (Rear HVAC).

[0040] The vehicle using the present invention converts the actual comfort needs of passengers through a program, drives the damper actuator 5, and the damper actuator 5 drives the track disk 9 to operate. The rotating track disk 9 then controls the positions of the temperature damper 11 and the mode damper 10 through two independent track lines to meet the needs of the passengers.

[0041] In practical applications, such as Figure 2 As shown, the air is led to the upstream of the evaporator core 4 by the blower 3, and the air is cooled down by the evaporator core 4. The damper actuator 5 drives the temperature damper 8 by controlling the operation of the track disk 9, and determines whether the air flow will pass through the warm air core 6. The air flow that is finally cooled or heated is guided by the position of the mode damper 7, and is selected to finally flow to the face outlet 1 and the foot outlet 2.

[0042] like Figure 3 As shown, in the hot summer, when the rear passengers need a cooler face-blowing cold wind, the damper actuator 5 will drive the track disc 9 to close the temperature damper 8 in the warm air core circuit state, and the mode damper 7 will open to the rear face-blowing air outlet. At this time, the air will be led to the evaporator core 4 through the blower motor 3. After the air is cooled by the evaporator core 4, it will be blown out at the rear face-blowing air outlet 1, realizing the full cold face-blowing air outlet mode.

[0043] like Figure 4 As shown, when the rear passengers need warm air to warm their feet, the damper actuator 5 will drive the track disc 9 to make the temperature damper 8 in a state where the cold air circulation passage is closed and the warm air circulation passage is open, and at the same time, the mode damper 7 is in a state where the face-blowing air outlet 1 is closed and the foot-blowing air outlet 2 is open. At this time, the air will be heated by the warm air core 6 and blown to the rear-seat foot-blowing air outlet 2, realizing a full-heat foot-blowing air outlet mode.

[0044] Figure 7The schematic diagram shows that the position of the mode damper 7 changes with the rotation angle of the track disc. The initial position of the mode damper 7 is set at the position where the rear-row foot-blowing air outlet 2 is closed, and the rear-row independent air conditioner blows air to the rear-row passenger's face; as the track disc moves, the mode damper 7 gradually rotates from the position where the rear-row foot-blowing air outlet 2 is closed to the middle position between the face-blowing air outlet 1 and the foot-blowing air outlet 2, realizing the face-blowing and foot-blowing wind separation mode; then as the track disc moves, the rear-row face-blowing air outlet 1 is blocked by the mode damper 7 structure, and the wind in the rear-row independent air conditioner is all blown out from the foot-blowing air outlet. A pure foot-blowing wind separation mode is realized.

[0045] Figure 8 The figure is a schematic diagram showing the position of the temperature damper 8 changing with the rotation angle of the track disc. The temperature damper 8 can achieve three changes from full heat to full cold during the entire operation of the track disc, which can ensure that the temperature can be freely adjusted between full cold and full heat in the three wind distribution modes, meeting the different temperature requirements of the rear passengers and ensuring the driving comfort of the rear passengers!

[0046] In some embodiments, the track disk 9 includes two planes, one side includes the temperature damper track line 11 and the mode damper track line 10 , and the other side is provided with a structural spline structure connected to the damper actuator 5 .

[0047] In some embodiments, the damper actuator 5 is a stepper motor, and the damper actuator 5 is connected to the spline structure of the track disk 9. After receiving the vehicle communication, the damper actuator 5 using the stepper motor rotates the motor and then links the track disk 9 to achieve stepless adjustment of the temperature damper 8 and the mode damper 7 to meet the requirements of functionality and comfort.

[0048] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A lightweight, low-cost rear-row independent air conditioning structure; comprising a blower (3) disposed at one end of an air duct, and an evaporator core (4) and a heater core (6) disposed in the air duct after an outlet of the blower (3); characterized in that: A temperature damper (8) and a mode damper (7) controlled by a rocker mechanism (12) are sequentially arranged in the air duct behind the evaporator core (4); the temperature damper (8) and the mode damper (7) are controlled by the rocker mechanism (12) according to actual needs of passengers, so that the airflow in the air duct flows through the cooling area or the heating area in the air duct and is controllably blown out from the rear air conditioning face outlet (1) and / or the rear air conditioning foot outlet (2); The rocker arm mechanism (12) is driven by a track disc (9) coordinated by a damper actuator (5); The track disc (9) includes a temperature air door track line (11) and a mode air door track line (10), and can drive the rocker arm mechanism (12) through the temperature air door track line (11) to control the temperature air door (8) to open the cooling area, or to open the heating area, and can simultaneously drive the rocker arm mechanism (12) through the mode air door track line (10) to control the mode air door (7) to open the rear air conditioner face air outlet (1), open the rear air conditioner foot air outlet (2), or open the rear air conditioner face air outlet (1) and the rear air conditioner foot air outlet (2) at the same time; When the cooling area is turned on, the evaporator core (4) starts working, and the warm air core (6) arranged in the heating area stops working; When the heating area is turned on, the evaporator core (4) stops working, and the warm air core (6) arranged in the heating area starts working; The track disc (9) comprises two planes, one side of which comprises the temperature damper track line (11) and the mode damper track line (10), and the other side of which is provided with a structural spline structure connected to the damper actuator (5); The damper actuator (5) is manufactured by integrating a driving motor, a gear box and a spline structure housing, and can convert the received electric pulse signal into a corresponding angular displacement to achieve stepless adjustment of the track disc (9); The temperature damper (8) includes three processes of switching from full heat to full cold during the operation of the track disc (9).

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