An air conditioning unit drainage device based on off-road vehicle operating conditions and an automobile
By adopting a dual-side drainage structure in the air conditioning unit of the off-road vehicle, the problem of condensate not being able to drain in time is solved, ensuring timely drainage of condensate under different driving postures, and improving the stability and performance of the air conditioning system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 212 OFF-ROAD VEHICLE CO LTD
- Filing Date
- 2025-11-30
- Publication Date
- 2026-07-03
AI Technical Summary
The existing single-sided drainage structure of the air conditioning unit in off-road vehicles cannot drain condensate in time under high humidity and high load conditions, resulting in a decrease in the performance of the air conditioning system and abnormal noise under low-speed off-road conditions.
The system employs a dual-sided drainage structure, which, by installing a double-headed condensate drain and two drain pipes inside the air conditioning unit, ensures that condensate can be drained in a timely manner when the vehicle tilts to the left or right.
It enables timely drainage of condensate under harsh off-road conditions, avoiding performance degradation and abnormal noise issues in the air conditioning system, and adapting to different driving postures.
Smart Images

Figure CN224447408U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive air conditioning technology, and more specifically, it relates to an air conditioning box drainage device and an automobile based on off-road vehicle operating conditions. Background Technology
[0002] Due to the improved performance of air conditioning systems in off-road vehicles, including the enhanced heat exchange capacity of the evaporator core, the amount of condensate produced in high-humidity environments has increased significantly. Previously, the air conditioning unit was designed with a single-sided drainage system and a single drain pipe. This resulted in condensate buildup inside the unit under high humidity and high load conditions, failing to drain properly and affecting the system's performance. Furthermore, under low-speed off-road conditions, the accumulated condensate could cause unusual noises.
[0003] To address the aforementioned technical problems, this application proposes a solution. Utility Model Content
[0004] The technical problem this utility model aims to solve is to overcome the shortcomings of existing technologies and provide an air conditioning unit drainage device and vehicle based on off-road vehicle operating conditions. Its utility model patent adopts a double-sided drainage structure, ensuring timely drainage of condensate. Furthermore, it ensures timely drainage even when the vehicle is tilted to the left or right under off-road conditions.
[0005] The aforementioned air conditioning unit drainage device and vehicle based on off-road vehicle operating conditions include an air conditioning duct. The air conditioning duct includes a blower housing, and an air filter placement slot is provided on the upper part of the blower housing. The blower housing is spiral in shape. A ventilation duct is fixedly connected to one end of the blower housing, and a ventilation duct outlet is fixedly connected to one end of the ventilation duct. A double-headed condensate tank is fixedly connected to the bottom of the ventilation duct outlet. The double-headed condensate tank is higher in the middle and lower at both ends, and drain pipes are sealed and connected to the lower ends respectively.
[0006] Preferably, an air conditioning cover is fixedly connected to one side of the ventilation duct outlet, an evaporator is fixedly connected to the upper side of the double-headed condensate tank inside the air conditioning cover, a heat exchanger is fixedly connected to one side of the evaporator, and air outlet one, air outlet two, air outlet three and air outlet four are respectively opened on the air conditioning cover.
[0007] Preferably, an air damper channel is fixedly connected above the air filter placement slot, and an air filter replacement port for easy replacement of the air conditioning filter element is provided on one side of the air damper channel. Inside the air damper channel, an air damper switch is installed on the upper part of the air filter placement slot, and an air inlet is provided above the air damper switch.
[0008] Preferably, the air conditioning duct is externally fixedly connected with multiple injection molding strips, which are arranged in a cross shape, and the air conditioning duct is manufactured entirely by injection molding.
[0009] Preferably, the ventilation duct outlet side is arranged in a stepped pattern, with the distance from the outlet gradually decreasing.
[0010] Preferably, a blower is fixedly installed inside the blower placement chamber.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This invention is based on the harsh off-road conditions of off-road vehicles. In high-humidity environments, existing air conditioning unit drainage devices have a single-sided drainage structure. When there is excessive condensation, it accumulates inside the air conditioning unit and cannot be drained out of the vehicle in time. This invention patent adopts a double-sided drainage structure, which ensures timely drainage of condensation. Furthermore, it ensures timely drainage even when the vehicle tilts to the left or right under off-road conditions. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the specific structure of the air conditioning pipe of this utility model;
[0015] Figure 3 This is a schematic diagram of the back structure of the air conditioning duct of this utility model;
[0016] Figure 4 This is a schematic diagram of the upper structure of the air conditioning duct of this utility model.
[0017] In the diagram, 1. Air conditioning duct; 101. Blower housing; 102. Air filter housing; 103. Ventilation duct; 104. Ventilation duct outlet; 105. Double-ended condensate drain; 106. Drain pipe; 107. Injection molding strip; 2. Air filter replacement port; 3. Air damper channel; 4. Air inlet; 5. Air damper switch; 6. Air conditioning cover; 601. Air outlet one; 602. Air outlet two; 603. Air outlet three; 604. Air outlet four; 7. Heat exchanger; 8. Evaporator. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings:
[0019] The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise expressly specified and limited, the terms "setting," "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0020] like Figures 1 to 4 As shown, an air conditioning unit drainage device and automobile based on off-road vehicle operating conditions are disclosed. The device includes an air conditioning duct 1. The function of the air conditioning duct 1 is primarily to bring in internal and external air, which is then cooled or heated by an evaporator 8 or a heat exchanger 7. The air conditioning duct 1 includes a blower housing 101. An air filter placement slot 102 is provided at the top of the blower housing 101, where an air filter element is placed for air purification, preventing the entry of dust and polluted air. The blower housing 101 is spiral-shaped. A ventilation duct 103 is fixedly connected to one end of the blower housing 101, and a ventilation duct outlet 104 is fixedly connected to one end of the ventilation duct 103. A double-ended condensate drain trough 105 is fixedly connected to the bottom of the ventilation duct outlet 104. The double-ended condensate drain trough 105 is higher in the middle and lower at both ends, with drain pipes 106 sealed and connected to the lower ends respectively. The advantages of this design are that the condensate can be drained in time through the two drain pipes 106. In addition, when the off-road vehicle is driving on unpaved roads, the road surface is bumpy and the vehicle is uneven. It is not easy for a single drain pipe 106 to drain on one side. With the addition of two drain pipes 106, even if there is unevenness on the left and right, the condensate can be drained in time.
[0021] like Figure 1 As shown, an air conditioning cover 6 is fixedly connected to one side of the ventilation duct outlet. An evaporator 8 is fixedly connected to the upper part of the double-headed condensate drain 105 inside the air conditioning cover 6. A heat exchanger 7 is fixedly connected to one side of the evaporator 8. The air conditioning cover 6 has air outlet 1 601, air outlet 2 602, air outlet 3 603, and air outlet 4 604 respectively. The main function of air outlet 1 601 is to blow air onto the windshield to prevent fogging. The main function of air outlet 2 602 is to blow air onto the passengers. The main function of air outlet 3 603 is to blow air onto the lower body of the passengers. The main function of air outlet 4 604 is to blow air onto one side.
[0022] An air damper channel 3 is fixedly connected above the air filter placement slot 102. An air filter replacement port 2 is provided on one side of the air damper channel 3 for easy replacement of the air conditioning filter. When the air conditioning filter becomes dirty, it can be replaced through the air filter replacement port 2. Inside the air damper channel 3, an air damper switch 5 is installed on top of the air filter placement slot 102. The function of the air damper switch 5 is to control the opening and closing of the air damper switch 5 to achieve internal and external air circulation. Proper use can improve energy efficiency. An air inlet 4 is provided above the air damper switch 5, through which air enters the vehicle's interior. Multiple injection-molded strips 107 are fixedly connected to the outside of the air conditioning duct 1. The injection-molded strips 107 are arranged in a cross shape. This design makes the air conditioning duct 1 more robust without increasing its overall thickness, thus saving material. The air conditioning duct 1 is manufactured entirely using injection molding. Figure 4 As shown, the ventilation duct outlet 104 is arranged in a stepped pattern on one side, with the distance from the outlet gradually decreasing. This design allows for better airflow from the ventilation duct outlet 104 to the heat exchanger 7 and evaporator 8, enabling faster heating and cooling of the air. A blower is fixedly installed inside the blower housing 101. The blower blows outside air into the vehicle or circulates the air inside the vehicle.
[0023] Another aspect of this utility model provides a car equipped with an air conditioning unit drainage device based on off-road vehicle conditions as described above.
[0024] Finally, although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An air conditioning unit drainage device and automobile based on off-road vehicle operating conditions, comprising air conditioning pipes (1), characterized in that: The air conditioning duct (1) includes a blower housing (101), an air filter placement trough (102) is provided on the upper part of the blower housing (101), the blower housing (101) is spiral in shape, a ventilation duct (103) is fixedly connected to one end of the blower housing (101), a ventilation duct outlet (104) is fixedly connected to one end of the ventilation duct (103), a double-headed condensate tank (105) is fixedly connected to the bottom of the ventilation duct outlet (104), the double-headed condensate tank (105) is high in the middle and low at both ends, and a drain pipe (106) is sealed and connected to the low ends respectively.
2. The air conditioning unit drainage device and automobile based on off-road vehicle operating conditions according to claim 1, characterized in that: An air conditioning cover (6) is fixedly connected to one side of the ventilation duct outlet. An evaporator (8) is fixedly connected to the upper side of the double-headed condensate tank (105) inside the air conditioning cover (6). A heat exchanger (7) is fixedly connected to one side of the evaporator (8). Air outlet 1 (601), air outlet 2 (602), air outlet 3 (603) and air outlet 4 (604) are respectively opened on the air conditioning cover (6).
3. The air conditioning unit drainage device and automobile based on off-road vehicle operating conditions according to claim 1, characterized in that: An air damper channel (3) is fixedly connected above the air filter placement slot (102). An air filter replacement port (2) is provided on one side of the air damper channel (3) to facilitate the replacement of the air conditioning filter element. An air damper switch (5) is installed on the upper part of the air filter placement slot (102) inside the air damper channel (3). An air inlet (4) is provided above the air damper switch (5).
4. The air conditioning unit drainage device and automobile based on off-road vehicle operating conditions according to claim 1, characterized in that: The air conditioning pipe (1) is externally fixedly connected with multiple injection molding strips (107), which are arranged in a cross shape. The air conditioning pipe (1) is made entirely by injection molding.
5. The air conditioning unit drainage device and automobile based on off-road vehicle operating conditions according to claim 1, characterized in that: The ventilation duct outlet (104) is arranged in a stepped manner on one side, with the outlet distance gradually decreasing.
6. The air conditioning unit drainage device and automobile based on off-road vehicle operating conditions according to claim 1, characterized in that: A blower is fixedly installed inside the blower placement chamber (101).