Novel mode switching mechanism assembly

Abstract

A novel mode switching mechanism assembly is characterized in that an air outlet assembly is provided with two air doors, namely a face blowing / defrosting air door and a foot blowing air door, the two air doors are connected to a right shell through shaft hole structures, a foot blowing swing rod is connected with the foot blowing air door in a bolt buckle mode, a face blowing / defrosting swing rod is connected with the face blowing / defrosting air door in a bolt buckle mode, and the two air doors are connected to a left shell through a shaft hole structure. The other ends of the two swing rods are connected with a mode driving disc in a matched mode, the mode driving disc is in clearance fit with a shaft hole of the left shell, and a mode actuator is connected with the mode driving disc in a matched mode to drive the mode driving disc to rotate. Two motion track grooves are formed in the mode driving disc, and the foot blowing control swing rod and the face blowing / defrosting swing rod are installed in the two track grooves. Five modes can be switched, the air conditioner structure is more efficient and more reliable, and the requirement for simplification of a modern whole vehicle is met.

Description

Technical Field

[0001] This utility model relates to automotive air conditioning, and more particularly to the transmission mechanism of automotive air conditioning HVAC assembly. Background Technology

[0002] In traditional automotive air conditioning systems, the mode switching air box assembly serves as the core actuator for airflow distribution. Its function is to switch between different modes by adjusting the opening and closing of the mode dampers, such as blowing air onto the face, blowing air onto the feet, blowing air onto the feet, blowing air onto the feet and defrosting. Typically, each air outlet uses a separate damper design. However, the types of dampers and their moving mechanisms are too complex, which can easily lead to problems such as air leakage and movement stagnation. Summary of the Invention

[0003] The purpose of this invention is to provide a novel mode-switching air outlet assembly that can switch between five modes, making the air conditioning structure more efficient and reliable, and meeting the requirements of modern vehicle simplification.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A novel mode switching mechanism assembly includes left and right housings, which are fixed together by screws. The assembly features two air dampers: a face / defrost damper and a foot damper. These dampers are connected to the right housing via shaft holes. A foot damper swing arm is engaged with a pin on the foot damper, and the face / defrost damper swing arm is also engaged with a pin on the face / defrost damper. The other ends of the two swing arms are connected to a mode drive disc, which is clearance-fitted with the shaft hole of the left housing. A mode actuator is engaged with the mode drive disc to drive its rotation.

[0006] The mode drive disk has two motion trajectory slots, and the control foot blower lever and the face blower / defrost lever are installed in the two trajectory slots.

[0007] The mode actuator is fixed to the mode drive protective cover by screws, and the mode drive protective cover is fixed to the left housing by screws.

[0008] The beneficial effects of this utility model are as follows:

[0009] This invention features two dampers on the air outlet assembly. The opening, closing, and angle of the face / defrost damper and the foot damper are controlled by a mode drive disc and an actuator, thereby enabling the switching of five mode states.

[0010] The main defrost air outlet, left defrost air outlet, right defrost air outlet, left front air outlet, center front air outlet, and right front air outlet are controlled by a front / defrost damper. The foot air outlet, left front air outlet, center front air outlet, right front air outlet, left foot air outlet, and right foot air outlet are controlled by a foot damper. This satisfies the air conditioner's own mode control and reduces the number of dampers.

[0011] The simplified structure reduces the number of air dampers, making the air conditioning system in the driver's cab more compact. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0013] Figure 2 This is a schematic diagram of each air outlet of this utility model. Detailed Implementation

[0014] The specific embodiments of this utility model are further described below with reference to the accompanying drawings:

[0015] See appendix Figure 1 and 2 The right housing 2 is connected to the blowing / defrosting damper 3 and the foot blowing damper 4 via a shaft hole. The left housing 1 is fixedly connected to the right housing 2 with screws. The foot blowing swing arm 6 is connected to the foot blowing damper 4 via a pin, and the blowing / defrosting swing arm 5 is connected to the blowing / defrosting damper 3 via a pin. The mode drive disk 7 has two motion trajectory grooves, which control the forward and reverse rotation of the foot blowing swing arm 6 and the blowing / defrosting swing arm 5. When the mode drive disk 7 rotates around the left housing 1, it drives the foot blowing swing arm 6 and the blowing / defrosting swing arm 5 to rotate; the mode actuator 9 drives the mode drive disk 7 to rotate. The mode drive disk 7 is clearance-fitted with the shaft hole of the left housing 1. The mode transmission protective cover 8 is fixed to the left housing 1 with screws; the mode actuator 9 is fixed to the mode transmission protective cover 8 with screws.

[0016] This utility model uses a surface blowing / defrosting damper 3 to control the closing and opening of the main defrosting air outlet 10, the left defrosting air outlet 11, the right defrosting air outlet 12, the left surface blowing air outlet 13, the middle surface blowing air outlet 14, and the right surface blowing air outlet 15. It uses a foot blowing damper 4 to control the closing and opening of the left surface blowing air outlet 13, the middle surface blowing air outlet 14, the right surface blowing air outlet 15, the left foot blowing air outlet 16, and the right foot blowing air outlet 17. This satisfies the air conditioner's own control over the mode and reduces the number of dampers.

Claims

1. A novel mode-changing mechanism assembly, comprising left and right housings, the left housing and the right housing being fixed together by screws, characterized in that: The air outlet assembly is designed with two air dampers, namely a face / defrost air damper and a foot air damper. The two air dampers are connected to the right housing through a shaft hole structure. The foot air damper is connected to the foot air damper with a pin, and the face / defrost air damper is connected to the face / defrost air damper with a pin. The other end of the two swing arms is connected to the mode drive disk. The mode drive disk is fitted with the shaft hole of the left housing with clearance. The mode actuator is connected to the mode drive disk to drive its rotation.

2. The novel mode conversion mechanism assembly according to claim 1, characterized in that: The mode drive disk has two motion trajectory slots, and the control foot blower lever and the face blower / defrost lever are installed in the two trajectory slots.

3. A novel mode conversion mechanism assembly according to claim 1 or 2, characterized in that: The mode actuator is fixed to the mode drive protective cover by screws, and the mode drive protective cover is fixed to the left housing by screws.

Images