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CN-122008791-A - New energy truck air conditioning box

CN122008791ACN 122008791 ACN122008791 ACN 122008791ACN-122008791-A

Abstract

The invention provides a new energy truck air-conditioning box, which adopts a mechanism of controlling two core mode air doors in a linkage way by adopting a semi-centralized compact shell design and a single mode disc, so that the switching of five air-out modes can be completed by only using two air doors, the internal structure and control logic are greatly simplified, the number of parts and the cost are reduced, the reliability of the system is improved, and the foot-blowing air door is also used as the ingenious design of a runner boundary in a closed state, so that the guidance and the space utilization rate of internal air flow are further optimized. In addition, the reasonable arrangement of the cold and warm air door and the heater core body and the shielding effect of the cold and warm air door on the air inlet surface of the heater core body fundamentally avoid the electric safety problem and the potential water dropping hidden trouble of the cockpit, which are possibly caused by splashing of the evaporator condensate water to the PTC heating unit, and the safety and the durability of the product are improved. The whole scheme enables the same air conditioning box to be capable of adapting to left rudder and right rudder models without mirror image modification, and reduces development and mould cost.

Inventors

  • SONG XIANHUI
  • ZHANG ZHIHUI
  • XIE CHAO
  • CHENG JUN
  • TAO JUN

Assignees

  • 江西新电汽车空调系统有限公司

Dates

Publication Date
20260512
Application Date
20260306

Claims (10)

  1. 1. A new energy truck air conditioning box, comprising: The inner and outer circulation shell assembly comprises a left inner and outer circulation shell (26) and a right inner and outer circulation shell (29), and the two shells are connected to form an outer circulation air channel and an inner circulation air channel which are independent from each other; The blower assembly (6) is arranged in a space formed by the left inner and outer circulating shell (26) and the right inner and outer circulating shell (29); the cold and warm shell assembly comprises a left warm air shell (15) and a right warm air shell (24), which are connected to form a main air duct and are connected with the left inner and outer circulation shell (26) and the right inner and outer circulation shell (29); the face-blowing defrosting air door (1) is arranged in the left warm air shell (15) and the right warm air shell (24); a foot blowing air door (2) which is arranged in the left warm air shell (15) and the right warm air shell (24) and forms a part of the inner wall surface of the main air duct when being closed; a mode disc (10) rotatably provided on the left warm air casing (15) or the right warm air casing (24); A face-blowing defrosting rotating shaft (7) connected with the face-blowing defrosting air door (1) and matched with a track structure on the mode disc (10); A foot blowing rotating shaft (8), wherein the foot blowing rotating shaft (8) is connected with the foot blowing air door (2); the foot blowing rocker arm (9), wherein the foot blowing rocker arm (9) is connected between the foot blowing rotating shaft (8) and the track structure on the mode disc (10); The mode servo motor (12) is connected with the mode disc (10), and when the mode servo motor (12) drives the mode disc (10) to rotate, the face-blowing defrosting rotating shaft (7) and the foot-blowing rocker arm (9) are synchronously driven through the track structure and used for adjusting the opening and closing states of the face-blowing defrosting air door (1) and the foot-blowing air door (2).
  2. 2. The new energy truck air conditioning case of claim 1, further comprising: A cold and hot air door (3) arranged in the left warm air shell (15) and the right warm air shell (24); a heater core (4) which is arranged in the left warm air shell (15) and the right warm air shell (24) and is positioned at the downstream of the cold and warm air door (3); and the cold and warm servo motor (13) is connected with the cold and warm air door (3) and used for shielding the air inlet surface of the heater core body (4) when the cold and warm air door is closed.
  3. 3. The new energy truck air conditioning case according to claim 2, characterized in that the heater core (4) comprises a PTC heating unit.
  4. 4. The new energy truck air conditioning case of claim 1, further comprising: an inner and outer circulation damper (28) rotatably provided between the left inner and outer circulation casing (26) and the right inner and outer circulation casing (29); And an internal and external circulation servo motor (30) connected with the internal and external circulation air door (28).
  5. 5. The new energy truck air conditioning case of claim 1, further comprising: the evaporator core (5) is arranged at the downstream of the blower assembly (6) and is positioned in the left warm air shell (15) and the right warm air shell (24).
  6. 6. The new energy truck air conditioning case of claim 5, further comprising: and the water tray (34) is arranged below the evaporator core body (5).
  7. 7. The new energy truck air conditioning case of claim 1, further comprising: and the air filter screen (32) is arranged in an air channel formed by the left inner and outer circulating shell (26) and the right inner and outer circulating shell (29).
  8. 8. The new energy truck air conditioning case of claim 7, further comprising: And the filter screen cover plate (33) is connected with the left inner and outer circulation shell (26) or the right inner and outer circulation shell (29) and is used for fixing the air filter screen (32).
  9. 9. The new energy truck air conditioning box according to claim 1 is characterized in that the left warm air shell (15), the right warm air shell (24), the left inner and outer circulation shell (26) and the right inner and outer circulation shell (29) are fixedly connected through self-tapping screws (31).
  10. 10. The new energy truck air conditioner box according to claim 1, wherein the mode servo motor (12) is mounted on the left warm air shell (15) or the right warm air shell (24) through a mode servo motor fixing plate (11).

Description

New energy truck air conditioning box Technical Field The invention relates to the technical field of air conditioners, in particular to a new energy truck air conditioner box. Background With the rapid development of new energy automobile technology, a vehicle thermal management system has become one of the core components of the whole vehicle design. The air conditioning system of the traditional fuel oil vehicle mainly bears the refrigerating and heating functions of the cockpit, and the energy consumption problem is relatively not outstanding. In the new energy automobile, the air conditioning system (or called thermal management system) not only needs to provide a comfortable environment for the passenger cabin, but also needs to cooperatively manage the temperatures of key components such as a battery, an electric drive system and the like, and the energy efficiency of the air conditioning system directly influences the endurance mileage and the safety of the whole automobile. Therefore, the air conditioning system has become one of the main energy consumption units in the new energy automobiles, and the structural optimization and the efficiency improvement thereof have become important focuses of technical competition. In the specific arrangement form of the air conditioning system, common structures include a centralized structure, a semi-centralized structure, a split structure and the like. The prior art air conditioning box is especially applied to the type of commercial vehicles (such as trucks and buses), and generally has the problems that firstly, the occupied space of the whole structure is large, particularly, the arrangement space behind an instrument panel (in the X direction and the Y direction) of the vehicle is tense, the design requirement of a compact cockpit is difficult to meet, secondly, two sets of air conditioning box assemblies with mirror symmetry left and right are often required to be developed due to the difference of left and right rudders (steering wheel positions) of the cockpit, so that the universality of parts is poor, the development cost is high, the repeated investment of a mould is caused, and thirdly, the number of air doors in the existing air conditioning box is large (more than three mode air doors are usually required to realize the switching of various air outlet modes such as face blowing, foot blowing, defrosting and the like), so that a driving mechanism is complex, the control logic is complicated, the failure rate is high, the air doors are also divided into pieces, the air flow resistance is increased, the noise is obvious, in addition, the condensed water generated on the surface of an evaporator is easy to be carried to a downstream PTC heater or other electrical parts due to the air flow when the inside the air conditioning box is in refrigeration operation, the electric leakage risk or the phenomenon is caused, the water dripping phenomenon is influenced, the safety and finally, the air conditioning box is difficult to be consumed by the user, and the air door is easy to detach and maintenance, and maintenance of the existing air conditioning box is difficult to detach and maintenance. Therefore, there is a need in the art to develop an air conditioning box solution that has a compact structure, is universal for left and right rudder vehicles, has a simplified mode switching mechanism, and can effectively prevent the influence of condensed water, so as to adapt to the higher requirements of new energy vehicles on space layout, cost control and reliability. Disclosure of Invention The invention aims to provide a new energy truck air conditioning box to solve the problems in the prior art. In order to achieve the above object, the present invention provides the following solutions: The invention provides a new energy truck air conditioning box, comprising: The inner and outer circulation shell assembly comprises a left inner and outer circulation shell and a right inner and outer circulation shell which are connected to form an outer circulation air channel and an inner circulation air channel which are independent from each other; the blower assembly is arranged in a space formed by the left inner and outer circulating shell and the right inner and outer circulating shell; The cold and warm shell assembly comprises a left warm air shell and a right warm air shell which are connected to form a main air duct and are connected with the left inner and outer circulating shell and the right inner and outer circulating shell; The face-blowing defrosting air door is arranged in the left warm air shell and the right warm air shell; The foot blowing air door is arranged in the left warm air shell and the right warm air shell, and forms a part of the inner wall surface of the main air duct when being closed; The mode disc is rotatably arranged on the left warm air shell or the right warm air shell; The face-blowing defrosting rotating shaft is connected with