Fresh air door assembly, built-in air conditioner all fresh air assembly and all fresh air conditioner for passenger car
By designing a new air conditioning system built-in for passenger cars, combined with detection modules and control systems, the free inflow and control of fresh air inside and outside the car box is solved, and the problem that the built-in air conditioning in traditional cars is unable to achieve the new air function is improved, improving the air quality and passenger experience in the car.
Patent Information
- Application Number
- CN202510170380.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2025-05-06
AI Technical Summary
The built-in air conditioner of the traditional car cannot exchange fresh air with the outside world, resulting in a decrease in the air quality in the car and cannot meet the needs of brand new air functions.
Design a new air conditioning system for passenger cars, combining detection modules and control systems, through the fresh air valve components and the new air conditioning components, the free inflow and control of fresh air inside and outside the car box is achieved, and the needs of new air functions are met.
It has achieved improvements in the air quality in the car, improved passenger travel experience, and can automatically or manually control the fresh air volume to ensure intelligent detection and regulation of the air quality in the car.
Smart Images
Figure CN119928522A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to a fresh air air conditioner. Background Art
[0002] With the improvement of people's quality of life, they are more and more inclined to a more comfortable and high-end riding environment in terms of travel, and all manufacturers are working hard in this direction. An important indicator of a good in-car environment is the air quality in the car; during the long-term operation of the bus, various odors such as human body odor, the smell of passengers' food, and the growth of bacteria and mold are mixed and diffused in the car, and the concentration of gases such as CO2 gradually increases, which has an adverse effect on passenger travel, business reception and other scenes, and even affects local economic growth. What's more, it will endanger the health of passengers and cause health problems such as respiratory diseases. As a mode of travel strongly advocated by my country, public transportation travel is urgent to develop a new air built-in air conditioner for buses that can improve the air quality in the car and improve the travel experience of passengers.
[0003] In the current increasingly competitive market environment, all manufacturers are committed to providing more comfortable travel solutions. At a time when customer demand for quality is increasing, it can be said that grasping customer needs is an important stepping stone for companies to enhance product competitiveness, move towards the high-end market and thus move towards the international market.
[0004] Traditional passenger car built-in air conditioners mainly include important components such as evaporators, condensers, compressors, and system pipelines. The evaporator is installed in the car body, generally between the luggage rack and the body frame to exchange heat with the car body; the condenser is installed in the car body side and other parts in contact with the external environment to facilitate heat transfer to the outside world; the compressor is generally located next to the engine to facilitate power transmission; the system pipeline is responsible for connecting the several to achieve the flow of refrigerant. The layout and quantity of the corresponding components can be adjusted according to the design of the whole vehicle. Due to the particularity of the built-in air-conditioning structure, the evaporator is installed inside the car body, and the cold / heat of the evaporation core is blown into the car body by the negative pressure principle of the suction-type evaporation fan to meet the user's cooling or heating needs. During this period, fresh air from the outside cannot enter the car body normally. The air conditioner runs in a closed space for a long time, and the air quality in the car body decreases, which has an adverse effect on the riding environment and comfortable travel experience. In order to improve the fresh air capacity of the air conditioner, the current practices are: First: There are currently no products with built-in fresh air air-conditioning systems for buses on the Chinese market. Such vehicles using built-in air conditioning cannot exchange air with the outside world, and fresh air cannot flow in normally to meet the fresh air demand.
[0005] Second: Existing technical products are usually equipped with fresh air systems in roof-mounted air-conditioning models, but they are not completely new air systems. The fresh air device is outside the car and cannot be used in the built-in air conditioner.
[0006] Therefore, the traditional car built-in air conditioner cannot achieve the function of exchanging fresh air with the outside world to improve the air quality. In order to maintain air circulation in the car, passengers may need to open the window, but opening the window while the vehicle is moving will cause strong winds in the car, affecting other passengers in the car and causing complaints; and opening the window will cause fluid turbulence in the whole vehicle, endangering the normal driving of the vehicle, and the amount of fresh air cannot be accurately controlled. Summary of the invention
[0007] The technical problem to be solved by the present invention is: in view of the defect that the built-in air conditioner of the traditional car cannot realize the fresh air exchange with the outside to improve the air quality, the present invention proposes a built-in fresh air air conditioning system for buses, which, in conjunction with the detection module and the control system, can freely control the inflow of fresh air from the outside into the car during high-speed driving, thereby improving the air quality in the car, and the return air vents and the fresh air vents can be opened and closed freely to meet the fresh air function requirements of the bus.
[0008] To solve the above problems, the present invention is achieved through the following technical solutions: A fresh air damper assembly comprises a damper, one side of which is connected to a wind plate actuator via an actuator shaft, and the other side of which is connected to an actuator tail shaft via a damper actuator tail shaft support; the actuator shaft is arranged on a damper left bracket, and the damper actuator tail shaft support is arranged on a damper right bracket; the damper left bracket and the damper right bracket are both connected to the damper.
[0009] One end of the actuator shaft is connected to the motor actuator in the wind plate actuator, the other end of the actuator shaft is connected to the left bracket of the damper, and the other end of the left bracket of the damper is hard-connected to the damper.
[0010] The tail shaft support of the damper actuator is on the same straight line as the axis of the actuator shaft.
[0011] A built-in air conditioning fresh air component of the above-mentioned damper assembly includes a fresh air damper assembly, a fresh air side plate is arranged on one side of the fresh air damper assembly, and a slide rail is arranged on the other side of the fresh air damper assembly; a rotatable damper is arranged in the fresh air damper assembly, and fresh air sealing sponge strips are respectively arranged at positions on the fresh air side plate and the slide rail that contact the damper.
[0012] The slide rail comprises a lower slide rail and an upper slide rail.
[0013] The fresh air side plate is a part of the evaporator shell, and a fresh air hole is opened in the middle of the fresh air side plate.
[0014] A built-in fresh air air conditioner for a bus adopting the fresh air component comprises a body frame, fresh air holes are opened on a profile at the body frame, an evaporator assembly is arranged in the body frame, the evaporator assembly comprises an evaporator shell, an evaporator core, an air filter and an evaporator fan are arranged in the evaporator shell, a built-in air conditioner fresh air component is arranged in the air inlet direction of the air filter, and the air filter is located behind the built-in air conditioner fresh air component and in front of the evaporator core.
[0015] A fresh air outlet sponge strip is pasted around the fresh air hole of the evaporator shell.
[0016] The built-in air conditioner's fresh air component is fixed on the evaporator shell, and the two are connected by bolts. The evaporator shell is simultaneously provided with a fresh air hole, the size of which matches the fresh air outlet sponge strip.
[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can realize the fresh air function of vehicles equipped with built-in air conditioners, meet the needs of automatic ventilation, improve the air quality in the car, and enhance the quality of travel; 2. The present invention can realize the independent opening / closing of the fresh air inlet and the return air inlet of a vehicle equipped with a built-in air conditioner, and realize automatic and active control of the air volume in the fresh air mode; 3. The present invention can realize intelligent detection of the air quality inside the car and intelligent regulation of the air quality inside the car by the fresh air air conditioning system under different environments. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is the overall structural layout diagram of the built-in fresh air air conditioner; Figure 2 This is the front view of the fresh air damper assembly; Figure 3 is a side view of the fresh air damper assembly; Figure 4 This is the structural diagram of the fresh air component of the built-in air conditioner; Figure 5 This is the control flow chart of the new air system; Figure 6 This is a structural diagram of the upper track and the lower track. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0020] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0021] like Figure 1 As shown, a built-in fresh air air conditioner for buses is improved and optimized based on the traditional built-in air conditioning technology. A fresh air component is added to the evaporator to achieve the inflow of fresh air, improve the air quality in the car, and meet people's needs for a comfortable travel experience.
[0022] A built-in fresh air air conditioner for a bus comprises a body frame 1, fresh air holes are opened on a profile at the body frame 1, fresh air holes are simultaneously left at the body skin, and side enclosures are left outside the fresh air holes to prevent rainwater from entering (not shown in the figure); an evaporator assembly is arranged in the body frame 1, the evaporator assembly comprises an evaporator shell 3, an evaporation core, an air filter 5 and an evaporation fan 6 are arranged in the evaporator shell 3, a built-in air conditioner fresh air component 4 is arranged in the air inlet direction of the air filter 5, the air filter 5 is located behind the built-in air conditioner fresh air component 4 and in front of the evaporation core, and its function is: the outside air inevitably contains impurities, dust and other foreign matter in different environments, and the existence of the air filter filters and intercepts the impurities, ensuring that the air flowing into the evaporator core is free of impurities, avoiding the core being blocked by foreign matter causing its heat exchange capacity to decrease, and is also an important measure to improve air quality, which complements the purpose of this invention. The evaporator fan 6 is a suction fan, which uses the negative pressure principle to allow the outside gas and the return air outlet to flow through the air filter 5 and then be forced to exchange heat through the evaporator core before being blown into the air duct inside the vehicle, ultimately achieving the inflow of fresh air from the outside to meet the demand for a comfortable riding environment.
[0023] Furthermore, a fresh air outlet sponge strip 2 is pasted around the fresh air hole of the evaporator shell 3. After the evaporator assembly is assembled, the fresh air outlet sponge strip 2 fits tightly with the periphery of the fresh air hole of the vehicle body frame 1 profile to avoid a reduction in the fresh air volume and fresh air outlet efficiency caused by air leakage.
[0024] Furthermore, the built-in air conditioning fresh air component 4 is fixed on the evaporator shell 3, and the two are connected by bolts. The evaporator shell 3 is simultaneously provided with a fresh air hole, the size of which matches the fresh air outlet sponge strip 2, to ensure unimpeded flow of fresh air.
[0025] like Figure 4As shown, the built-in air conditioning fresh air component 4 includes a fresh air damper component 42, a fresh air side panel 41 is arranged on one side of the fresh air damper component 42, a lower slide rail 43 and an upper slide rail 45 are arranged on the other side of the fresh air damper component 42, a rotatable damper 424 is arranged in the fresh air damper component 42, and fresh air sealing sponge strips 44 are respectively arranged at the positions in contact with the damper 424 on the fresh air side panel 41 and the lower slide rail 43, and the fresh air sealing sponge strips 44 here can solve the problem of poor sealing between the two sheet metal parts, improve the operating efficiency of the equipment and reduce the occurrence of hidden dangers such as abnormal noise.
[0026] It should be noted that in the above structure, the fresh air side plate 41 can be a part of the evaporator housing 3, and a fresh air hole is opened in the middle of the fresh air side plate 41, which can enhance the overall structural strength of the evaporator and is an important component for realizing the fresh air function. Figure 2 As shown, it is a necessary condition for its smooth operation to be fixed on the same axis of the evaporator shell 3 by bolts. Figure 4 In the embodiment, the damper 424 of the fresh air damper assembly 42 can be opened from the maximum to the closed position. The damper movement is achieved by the reciprocating rotation of the micro motor to make the lower damper reach the specific posture required by the function, thereby realizing the opening or closing of the fresh air function. Any rotation angle in the process from opening to closing can be achieved according to the setting of the electronic control device. The fresh air damper rotates from the initial closed state 0% to the maximum open state 100%. The larger the rotation angle, the overall fresh air volume of the evaporator will gradually increase until Figure 4 to the maximum opening.
[0027] Preferably, the lower slide rail 43 and the upper slide rail 45 are fixed to the housing to ensure that a parallel space is formed between the two. Figure 1 Medium air filter 5, such as Figure 6 As shown, it is ensured that the gas blown into the evaporation core is purified by the air filter 5 to improve the air quality. The upper and lower slide rails run through the entire evaporator housing 3 and communicate with the outside world, ensuring that the air filter 5 can be smoothly pulled out and replaced. Because the surface of the air filter 5 is dirty and clogged after being used for a period of time, affecting its filtering function, the design of the slide rail is convenient for subsequent maintenance.
[0028] like Figure 2 , Figure 3 As shown, the fresh air damper assembly 42 includes a damper 424, one side of which is connected to the air plate actuator 421 via an actuator shaft 422, and the other side of which is connected to the actuator tail shaft 427 via a damper actuator tail shaft support 426; the actuator shaft 422 is arranged on the damper left bracket 423, and the damper actuator tail shaft support 426 is arranged on the damper right bracket 425; the damper left bracket 423 and the damper right bracket 425 are both connected to the damper 424.
[0029] In the above structure, the wind plate actuator 421 is the power source for the air door 424 to rotate. The wind plate actuator 421 contains a driving system such as a motor and an electronic control system, which can control the rotation angle of the motor through an electrical signal transmitted from the air conditioner electronic control box. The shell of the wind plate actuator 421 is fixed on the evaporator shell 3, such as Figure 1 As shown, the two are rigidly connected by bolts, and the evaporator housing 3 provides a fulcrum for the wind plate actuator.
[0030] One end of the actuator shaft 422 is connected to the motor actuator in the air plate actuator 421, and the other end of the actuator shaft 422 is connected to the damper left bracket 423, transmitting the motor execution result to the damper left bracket 423, playing the role of power transmission. The other end of the damper left bracket 423 is hard-connected to the damper 424 by riveting. Its unique structure changes the limitation of the single rotating axis of the actuator while transmitting power, so that the damper 424 can achieve a wider range of rotation after the transition connection of the damper left bracket, so as to better adapt to the limitation of the shell structure and realize the opening and closing of the fresh air function, such as Figure 3 As shown; the damper 424 is the final fresh air actuator. After the damper bracket converts the power, it can rotate at a specific angle. Finally, it works together with the shell component to realize the opening of the fresh air and the action of the fresh air opening. The function of the right damper bracket 425 is similar to that of the left damper bracket 423. After the right damper bracket 425 is connected with the damper actuator tail shaft support 426, they jointly ensure the smooth operation of the damper action; the actuator tail shaft 427 is also connected to the other end of the evaporator shell 3 by bolts. It is necessary to ensure that after the damper actuator tail shaft support 6 is connected, the damper actuator tail shaft support 426 and the actuator shaft 422 are on the same straight line. Only in this way can the damper 424 run smoothly without any jamming during the rotation process. The smooth operation of the action is also beneficial to increase the service life of the motor of the wind plate actuator, thereby improving the user satisfaction of the entire product.
[0031] like Figure 5 As shown, when the air conditioner is running in cooling / heating / ventilation mode, the fresh air function can be turned on automatically or manually. Manual opening is mainly affected by the user's subjective feelings. When the air quality in the car is poor, the fresh air function can be turned on manually, and it can also be turned off manually. The automatic fresh air function mainly relies on the temperature and concentration sensors, electronic control devices, program settings, etc. set by the air conditioner. For example, when the sensor detection value reaches the pre-set condition of the program, the fresh air component starts working for a period of time, the air quality in the car rises, the sensor detection value is lower than the set value, and the fresh air component is turned off. Of course, the trigger condition setting program is not limited to opening and closing, but also adjusts different fresh air openings and opening times under different working conditions to meet the needs of intelligent air conditioning control.
[0032] The beneficial effects of the present invention are: 1. Add a fresh air module to the built-in air-conditioning evaporator and install it on the contact side between the evaporator and the car compartment. Use a sponge strip to seal the space between the two to allow fresh air from the outside to flow in.
[0033] 2. The aluminum alloy shell of the built-in air conditioner is provided with interfaces for fresh air components such as the actuator shaft, wind plate actuator, and left and right brackets of the damper. The opening of the damper is controlled to meet the size of the fresh air inflow.
[0034] 3. The air conditioner shall reasonably arrange the carbon dioxide concentration sensor and indoor and outdoor temperature sensors, detect the air quality, indoor and outdoor temperature, transmit signals, and control the fan actuator through the electronic control equipment to meet the needs of the fresh air function under different working conditions.
[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, which should also be regarded as the scope of protection of the present invention.
Claims
1. A fresh air damper assembly, characterized in that: The damper (424) comprises a damper (424), one side of which is connected to a damper actuator (421) via an actuator shaft (422), and the other side of which is connected to an actuator tail shaft (427) via a damper actuator tail shaft support (426); the actuator shaft (422) is arranged on a damper left bracket (423), and the damper actuator tail shaft support (426) is arranged on a damper right bracket (425); the damper left bracket (423) and the damper right bracket (425) are both connected to the damper (424).
2. The fresh air damper assembly according to claim 1, characterized in that: One end of the actuator shaft (422) is connected to the motor actuator in the wind plate actuator (421), the other end of the actuator shaft (422) is connected to the damper left bracket (423), and the other end of the damper left bracket (423) is rigidly connected to the damper (424).
3. The fresh air damper assembly according to claim 1, characterized in that: The damper actuator rear shaft support (426) and the axis of the actuator shaft (422) are on the same straight line.
4. A built-in air conditioning fresh air component using the damper component according to any one of claims 1 to 3, characterized in that: The fresh air damper assembly (42) comprises a fresh air side plate (41) arranged on one side of the fresh air damper assembly (42), and a slide rail arranged on the other side of the fresh air damper assembly (42); a rotatable damper (424) is arranged in the fresh air damper assembly (42), and fresh air sealing sponge strips (44) are respectively arranged at positions on the fresh air side plate (41) and the slide rail that are in contact with the damper (424).
5. The built-in air conditioning fresh air component according to claim 4, characterized in that: The slide rails comprise a lower slide rail (43) and an upper slide rail (45).
6. The built-in air conditioning fresh air component according to claim 4, characterized in that: The fresh air side plate (41) is a part of the evaporator shell (3), and a fresh air hole is opened in the middle of the fresh air side plate (41).
7. A built-in fresh air air conditioner for a passenger car using the fresh air component according to claim 4, comprising a vehicle body frame (1), fresh air holes are opened on a profile at the vehicle body frame (1), an evaporator assembly is arranged in the vehicle body frame (1), the evaporator assembly comprises an evaporator shell (3), an evaporator core, an air filter (5) and an evaporator fan (6) are arranged in the evaporator shell (3), a built-in air conditioner fresh air component (4) is arranged in the air inlet direction of the air filter (5), and the air filter (5) is located behind the built-in air conditioner fresh air component (4) and in front of the evaporator core.
8. The built-in fresh air air conditioner for a passenger car according to claim 7, characterized in that: A fresh air outlet sponge strip (2) is adhered around the fresh air hole of the evaporator housing (3).
9. The built-in fresh air air conditioner for a passenger car according to claim 8, characterized in that: The built-in air conditioning fresh air component (4) is fixed on the evaporator housing (3), and the two are connected by bolts. The evaporator housing (3) is simultaneously provided with a fresh air hole, the size of which matches the fresh air outlet sponge strip (2).