A three-mode dual-drive automotive air conditioning mechanism

Abstract

The present invention discloses a three-mode dual-drive automotive air-conditioning mechanism, belonging to the technical field of vehicle equipment. It includes a left housing and a right housing. Inside the left housing, a left defrost air door, a left face-blowing air door, a left foot-blowing air door, an upper left mixing air door, and a lower left mixing air door are respectively arranged; inside the right housing, a right defrost air door, a right face-blowing air door, a right foot-blowing air door, an upper right mixing air door, and a lower right mixing air door are respectively arranged; each of the air doors rotates around its respective rotating shaft to achieve opening and closing. The air-conditioning air door movement mechanism of the present invention realizes the application of three modes (face-blowing / defrosting / foot-blowing) in automotive air conditioners, and any combination of seven modes can meet the comprehensive blowing experience in the automotive cockpit; direct drive for defrosting solves the problem of rapid defrosting and defogging response in automobiles.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle equipment, and particularly relates to a three-mode dual-drive automotive air-conditioning mechanism. Background Art

[0002] Generally, automotive air conditioners have five blowing modes, namely: three main modes (face blowing, defrosting, foot blowing) and two half modes (defrosting / foot blowing, face blowing / foot blowing), that is, the air conditioner only blows air out of the face, only defrosts, only blows air out of the feet, or defrosts / foot blows simultaneously, face blows / foot blows simultaneously; there are few air conditioners that can achieve the simultaneous blowing application of three modes (face blowing / defrosting / foot blowing), that is, no air conditioner can simultaneously let the face, defrosting, and foot blow out air. For example, Patent CN211854330U discloses a multi-mode air-conditioning system, including a refrigeration system and a heat pipe system. The refrigeration system includes a compressor, a condenser, and an evaporator; the heat pipe system includes a condenser and an evaporator. Another example is Patent CN109780677A, which discloses a multi-mode air conditioner, including a manual mode operation module, a reference mode operation module, a user mode operation module, a positioning device, and a communication module. Another example is Patent CN101865513A, which discloses a multi-mode independent temperature control method and air conditioner for an air conditioner, respectively defining the temperature control ranges of the user heating mode and the refrigeration mode.

[0003] The multi-mode air conditioners related to the above patents do not involve the air-conditioning damper mode for vehicles and do not involve the motion mechanism.

[0004] In order to meet the simultaneous blowing experience of multi-modes of automotive air conditioners in the market and the corresponding rapid defrosting, it is necessary to invent a new automotive air-conditioning mechanism with coexistence of three-mode blowing, while satisfying any combination of two half modes. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies existing in the above background art, and provide a three-mode dual-drive automotive air-conditioning mechanism. It realizes the blowing application of three modes (face blowing / defrosting / foot blowing) of the automotive air conditioner and the free combination of any two modes, not limited to the traditional five blowing modes. It realizes the requirements of three modes and the combined blowing of any two modes of the automotive air conditioner on a temperature-controlled dual-drive air conditioner.

[0006] The technical solution adopted by the present invention is: a three-mode dual-drive automotive air-conditioning mechanism, including a left housing and a right housing. Inside the left housing, a left defrosting damper, a left face-blowing damper, a left foot-blowing damper, an upper left mixing damper, and a lower left mixing damper are respectively arranged; inside the right housing, a right defrosting damper, a right face-blowing damper, a right foot-blowing damper, an upper right mixing damper, and a lower right mixing damper are respectively arranged; the dampers all rotate around their respective rotating shafts to achieve opening and closing.

[0007] The cam disc is installed on the left housing, and the face-blowing rocker is connected to the cam disc. The face-blowing rocker is sequentially connected to the face-blowing connecting rod, the face-blowing swing arm, and the left face-blowing air damper. The left face-blowing air damper is linked with the right face-blowing air damper, and the rotation of the cam disc drives the rotation of the left and right face-blowing air dampers.

[0008] The foot-blowing rocker is connected to the cam disc. The foot-blowing rocker is sequentially connected to the foot-blowing connecting rod, the foot-blowing rocker arm, the left foot-blowing air damper, the left foot-blowing swing arm, the left and right foot-blowing long connecting rods, the right foot-blowing swing arm, and the right foot-blowing air damper. The rotation of the cam disc drives the rotation of the left and right foot-blowing air dampers.

[0009] The left mixing drive gear is installed on the left housing. The left mixing drive gear is connected to the upper left mixing swing arm and the upper left mixing air damper to drive the rotation of the upper left mixing air damper; the left mixing drive gear is connected to the left mixing connecting rod, the lower left mixing swing arm, and the lower left mixing air damper to drive the rotation of the lower left mixing air damper.

[0010] The right mixing drive gear is installed on the right housing. The right mixing drive gear is connected to the upper right mixing swing arm and the upper right mixing air damper to drive the rotation of the upper right mixing air damper; the right mixing drive gear is connected to the right mixing connecting rod, the lower right mixing swing arm, and the lower right mixing air damper to drive the rotation of the lower right mixing air damper.

[0011] In a further preferably structured embodiment, the cam disc bracket is installed on the left housing. A stepper motor is installed on the cam disc bracket, and the output end of the stepper motor is connected to the cam disc. The stepper motor provides power for the rotation of the cam disc.

[0012] In a further preferably structured embodiment, the left foot-blowing air damper is linked with the right foot-blowing air damper, and the left face-blowing air damper is linked with the right face-blowing air damper.

[0013] In a further preferably structured embodiment, the left mixing bracket and the right mixing bracket are respectively installed on the left housing and the right housing.

[0014] In a further preferably structured embodiment, a stepper motor is installed on the left mixing bracket, and the output end of the stepper motor is connected to the left mixing drive gear. The stepper motor provides power for the rotation of the left mixing drive gear; a stepper motor is installed on the right mixing bracket, and the output end of the stepper motor is connected to the right mixing drive gear. The stepper motor provides power for the rotation of the left mixing drive gear.

[0015] In a further preferably structured embodiment, the upper left mixing air damper and the upper right mixing air damper are not linked, and their movements are independent and do not interfere with each other; the lower left mixing air damper and the lower right mixing air damper are not linked, and their movements are independent and do not interfere with each other. The independent control of the left and right mixing drives brings a dual-drive temperature control effect.

[0016] A further preferred structure is that the defrost swing arm is connected to the right defrost air door and the left defrost air door, and the stepping motor shaft is directly connected to the defrost swing arm to rotate the right defrost air door and the left defrost air door.

[0017] A further preferred structure is that a face-blowing track groove and a foot-blowing track groove are arranged on the cam disc, the face-blowing rocker slides along the face-blowing track groove, and the foot-blowing rocker slides along the foot-blowing track groove.

[0018] A further preferred structure is that during the rotation of the cam disc, it drives the face-blowing rocker, the face-blowing connecting rod, the face-blowing swing arm, the foot-blowing rocker, the foot-blowing connecting rod, the foot-blowing swing arm, the left foot-blowing swing arm, the left and right foot-blowing long connecting rods, and the right foot-blowing swing arm to rotate in sequence, and four states can be realized: only the left face-blowing air door and the right face-blowing air door are fully open, only the left foot-blowing air door and the right foot-blowing air door are fully open, both the left face-blowing air door, the right face-blowing air door and the left foot-blowing air door, the right foot-blowing air door are fully open, and both the left face-blowing air door, the right face-blowing air door and the left foot-blowing air door, the right foot-blowing air door are fully closed.

[0019] A further preferred structure is that when the left defrost air door and the right defrost air door are fully open and combined with the full opening of both the left face-blowing air door, the right face-blowing air door and the left foot-blowing air door, the right foot-blowing air door, the three-mode simultaneous blowing state of defrosting, face-blowing, and foot-blowing can be realized.

[0020] The defrost air door of the present invention is directly driven and the cam disc for foot-blowing and face-blowing is driven in linkage. The direct drive of the defrost air door can realize the independent control of this air door, that is, full defrosting and full closing of defrosting; the linkage of the cam disc for foot-blowing and face-blowing can respectively realize four states: single foot-blowing, single face-blowing, full open of foot-blowing / face-blowing, and full closing of foot-blowing / face-blowing. The combination of the defrost air door and the above four states of foot-blowing and face-blowing can realize any blowing mode: three main modes (face-blowing, defrosting, foot-blowing), three semi-modes (defrosting / foot-blowing, face-blowing / foot-blowing, defrosting / face-blowing), and one three-mode (face-blowing / defrosting / foot-blowing).

[0021] The left and right dual-drive mechanism of the present invention adopts the linkage of the upper and lower mixing air doors, which do not affect each other. The left and right cold and hot mixing are separately controlled independently, realizing the dual drive of left and right temperature control and the single drive of the mode.

[0022] The air door movement mechanism of the air conditioner of the present invention realizes the application of the three-mode (face-blowing / defrosting / foot-blowing) in the automotive air conditioner. Seven modes can be arbitrarily matched to meet the comprehensive blowing experience of the automotive cockpit; the direct drive of defrosting solves the problem of rapid defrosting and defogging response of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the air conditioner without the stepping motor;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the air door movement mechanism of the air conditioner without the left housing;

[0025] Figure 3 It isFigure 1 Schematic three-dimensional structure diagram of the air-conditioning air door movement mechanism removing the right housing

[0026] Figure 4 Schematic three-dimensional structure diagram of the air-conditioning air door movement mechanism removing the housing and the bracket

[0027] Figure 5 Schematic three-dimensional structure diagram of the defrosting, foot blowing, and face blowing movement mechanisms

[0028] Figure 6 Schematic three-dimensional structure diagram of the defrosting, foot blowing, and face blowing movement mechanisms from another angle

[0029] Figure 7 Schematic diagram of the movement of the cam disc track groove

[0030] In the figure: 10 - left defrosting air door; 20 - left face blowing air door; 30 - left foot blowing air door; 40 - upper left mixing air door; 50 - lower left mixing air door; 60 - right defrosting air door; 70 - right face blowing air door; 80 - right foot blowing air door; 90 - upper right mixing air door; 100 - lower right mixing air door; 200 - cam disc bracket; 205 - cam disc bracket hole; 210 - left mixing bracket; 215 - left mixing bracket hole; 220 - left housing; 230 - right housing; 240 - double-drive central partition; 250 - right mixing bracket; 255 - right mixing bracket hole; 300 - cam disc; 301 - face blowing track groove; 302 - foot blowing track groove; 305 - cam disc shaft hole; 310 - face blowing rocker; 320 - face blowing connecting rod; 325 - face blowing swing arm; 330 - foot blowing rocker; 340 - foot blowing connecting rod; 345 - foot blowing swing arm; 350 - left foot blowing swing arm; 360 - left and right foot blowing long connecting rod; 370 - right foot blowing swing arm; 400 - left mixing drive gear; 410 - upper left mixing swing arm; 420 - left mixing connecting rod; 430 - lower left mixing swing arm; 500 - right mixing drive gear; 510 - upper right mixing swing arm; 520 - right mixing connecting rod; 530 - lower right mixing swing arm; 600 - defrosting swing arm Detailed implementation manners

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, which are convenient for clearly understanding the present invention, but they do not limit the present invention

[0032] With reference to Figure 1 and Figure 2, the dual-drive air-conditioning air door movement mechanism of the preferred embodiment of the present invention is installed on the left housing 220 and the right housing 230 of the air conditioner. Inside the left housing 220, a left defrost air door 10, a left face-blowing air door 20, a left foot-blowing air door 30, an upper left mixing air door 40, and a lower left mixing air door 50 are respectively arranged; inside the right housing 230, a right defrost air door 60, a right face-blowing air door 70, a right foot-blowing air door 80, an upper right mixing air door 90, and a lower right mixing air door 100 are respectively arranged. Each of the air doors rotates around its own rotating shaft to achieve opening and closing.

[0033] Referring to Figure 2 , Figure 4 and Figure 5 , the cam disc bracket 200 is installed on the left housing 220. A stepper motor (not shown in the figure, and the stepper motor shaft passes through the cam disc bracket hole 205 and is connected to the cam disc shaft hole 305 of the cam disc 300) is installed on the cam disc bracket 200, and the stepper motor provides power for the rotation of the cam disc 300. The cam disc 300 is installed on the left housing 220. The face-blowing rocker 310 is connected to the cam disc 300. The face-blowing rocker 310 is sequentially connected to the face-blowing connecting rod 320, the face-blowing swing arm 325, and the left face-blowing air door 20. The left face-blowing air door 20 is linked with the right face-blowing air door 70. Thus, the rotation of the cam disc 300 drives the left face-blowing air door 20 and the right face-blowing air door 70 to rotate; the foot-blowing rocker 330 is connected to the cam disc 300. The foot-blowing rocker 330 is sequentially connected to the foot-blowing connecting rod 340, the foot-blowing swing arm 345, the left foot-blowing air door 30, the left foot-blowing swing arm 350, the left and right foot-blowing long connecting rods 360, the right foot-blowing swing arm 370, and the right foot-blowing air door 80. Thus, the rotation of the cam disc 300 drives the left foot-blowing air door 30 and the right foot-blowing air door 80 to rotate. The left foot-blowing air door 30 is linked with the right foot-blowing air door 80, and the left face-blowing air door 20 is linked with the right face-blowing air door 70.

[0034] Referring to Figure 1 , Figure 3 and Figure 4, the left mixing bracket 210 and the right mixing bracket 250 are respectively installed on the left housing 220 and the right housing 230. The left mixing drive gear 400 is installed on the left housing 220. A stepper motor (not shown in the figure, and the stepper motor shaft passes through the left mixing bracket hole 215 and is connected to the left mixing drive gear 400) is installed on the left mixing bracket 210. The stepper motor provides power for the rotation of the left mixing drive gear 400. The left mixing drive gear 400 is connected to the upper left mixing swing arm 410 and the upper left mixing air damper 40 to drive the upper left mixing air damper 40 to rotate; the left mixing drive gear 400 is connected to the left mixing connecting rod 420, the lower left mixing swing arm 430, and the lower left mixing air damper 50 to drive the lower left mixing air damper 50 to rotate. The right mixing drive gear 500 is installed on the right housing 230. A stepper motor (not shown in the figure, and the stepper motor shaft passes through the right mixing bracket hole 255 and is connected to the right mixing drive gear 500) is installed on the right mixing bracket 250. The stepper motor provides power for the rotation of the left mixing drive gear 500. The right mixing drive gear 500 is connected to the upper right mixing swing arm 510 and the upper right mixing air damper 90 to drive the upper right mixing air damper 90 to rotate; the right mixing drive gear 500 is connected to the right mixing connecting rod 520, the lower right mixing swing arm 530, and the lower right mixing air damper 100 to drive the lower right mixing air damper 100 to rotate. The upper left mixing air damper 40 and the upper right mixing air damper 90 are not linked, and their movements are independent and do not interfere with each other; the lower left mixing air damper 50 and the lower right mixing air damper 100 are not linked, and their movements are independent and do not interfere with each other. The independent control of the left and right mixing drives brings a dual-drive temperature control effect.

[0035] Refer to in combination Figure 3 and Figure 6 , the defrosting swing arm 600 is connected to the right defrosting air damper 60 and the left defrosting air damper 10, and the stepper motor shaft is directly connected to the defrosting swing arm 600 to rotate the right defrosting air damper 60 and the left defrosting air damper 10.

[0036] Refer to in combination Figure 7 , the cam disk 300 is provided with a face-blowing track groove 301 and a foot-blowing track groove 302. The face-blowing rocker 310 slides along the face-blowing track groove 301, and the foot-blowing rocker 330 slides along the foot-blowing track groove 302. During the rotation of the cam disk 300, it drives the face-blowing mechanism (face-blowing rocker 310; face-blowing connecting rod 320; face-blowing swing arm 325) and the foot-blowing mechanism (foot-blowing rocker 330; foot-blowing connecting rod 340; foot-blowing swing arm 345; left foot-blowing swing arm 350; left and right foot-blowing long connecting rod 360; right foot-blowing swing arm 370) to rotate in sequence, and can realize four states: only the left / right face-blowing air damper 20 / 70 is fully open, only the left / right foot-blowing air damper 30 / 80 is fully open, both the left / right face-blowing air damper 20 / 70 and the left / right foot-blowing air damper 30 / 80 are fully open, and both the left / right face-blowing air damper 20 / 70 and the left / right foot-blowing air damper 30 / 80 are fully closed.

[0037] Thus, the full opening of the left / right defrost air dampers 10 / 60 in combination with the full opening of the left / right face air dampers 20 / 70 and the left / right foot air dampers 30 / 80 can achieve the simultaneous blowing state of the three modes (defrosting / face blowing / foot blowing).

[0038] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

Claims

1. A dual-drive automotive air conditioning mechanism with three modes of defrosting, face blowing, and foot blowing, characterized in that: It includes a left housing and a right housing. Inside the left housing, a left defrost air door, a left face-blowing air door, a left foot-blowing air door, an upper-left mixing air door, and a lower-left mixing air door are respectively arranged; inside the right housing, a right defrost air door, a right face-blowing air door, a right foot-blowing air door, an upper-right mixing air door, and a lower-right mixing air door are respectively arranged; the air doors all rotate around their respective rotating shafts to achieve opening and closing; The cam disc is installed on the left housing. The face-blowing rocker is connected to the cam disc. The face-blowing rocker is successively connected to the face-blowing connecting rod, the face-blowing swing arm, and the left face-blowing air door. The left face-blowing air door is linked with the right face-blowing air door. When the cam disc rotates, it drives the left face-blowing air door and the right face-blowing air door to rotate; The foot-blowing rocker is connected to the cam disc. The foot-blowing rocker is successively connected to the foot-blowing connecting rod, the foot-blowing rocker arm, the left foot-blowing air door, the left foot-blowing swing arm, the left and right foot-blowing long connecting rods, the right foot-blowing swing arm, and the right foot-blowing air door. The left foot-blowing air door is linked with the right foot-blowing air door. When the cam disc rotates, it drives the left foot-blowing air door and the right foot-blowing air door to rotate; The left and right mixing drive gears are respectively installed on the left and right housings. The left mixing drive gear is connected to the upper-left mixing swing arm and the upper-left mixing air door to drive the upper-left mixing air door to rotate. The right mixing drive gear is connected to the upper-right mixing swing arm and the upper-right mixing air door to drive the upper-right mixing air door to rotate; the left mixing drive gear is connected to the left mixing connecting rod, the lower-left mixing swing arm, and the lower-left mixing air door to drive the lower-left mixing air door to rotate. The right mixing drive gear is connected to the right mixing connecting rod, the lower-right mixing swing arm, and the lower-right mixing air door to drive the lower-right mixing air door to rotate; The upper-left and upper-right mixing air doors are not linked, and the lower-left and lower-right mixing air doors are not linked.

2. A dual-drive automotive air conditioning mechanism with three modes of defrosting, face blowing, and foot blowing according to claim 1, characterized in that: The cam disc is provided with a face-blowing track groove and a foot-blowing track groove. The face-blowing rocker slides along the face-blowing track groove, and the foot-blowing rocker slides along the foot-blowing track groove; During the rotation of the cam disc, it drives the face-blowing rocker, the face-blowing connecting rod, and the face-blowing swing arm to rotate to achieve only the full opening of the left face-blowing air door and the right face-blowing air door; During the rotation of the cam disc, it drives the foot-blowing rocker, the foot-blowing connecting rod, the foot-blowing rocker arm, the left foot-blowing swing arm, the left and right foot-blowing long connecting rods, and the right foot-blowing swing arm to rotate to achieve only the full opening of the left foot-blowing air door and the right foot-blowing air door; During the rotation of the cam disc, it drives the face-blowing rocker, the face-blowing connecting rod, the face-blowing swing arm and the foot-blowing rocker, the foot-blowing connecting rod, the foot-blowing rocker arm, the left foot-blowing swing arm, the left and right foot-blowing long connecting rods, and the right foot-blowing swing arm to rotate to achieve the full opening of both the left face-blowing air door, the right face-blowing air door and the left foot-blowing air door, the right foot-blowing air door; During the rotation of the cam disc, it drives the face-blowing rocker, the face-blowing connecting rod, the face-blowing swing arm and the foot-blowing rocker, the foot-blowing connecting rod, the foot-blowing rocker arm, the left foot-blowing swing arm, the left and right foot-blowing long connecting rods, and the right foot-blowing swing arm to rotate to achieve the full closing of both the left face-blowing air door, the right face-blowing air door and the left foot-blowing air door, the right foot-blowing air door; The full opening of the left defrost air door and the right defrost air door combined with the full opening of both the left face-blowing air door, the right face-blowing air door and the left foot-blowing air door, the right foot-blowing air door can achieve the three-mode simultaneous air-blowing state of defrosting, face blowing, and foot blowing.

3. A dual-drive automotive air conditioning mechanism with three modes of defrosting, face blowing, and foot blowing according to claim 1, characterized in that: The cam disc bracket is installed on the left housing, and a stepper motor is installed on the cam disc bracket. The output end of the stepper motor is connected to the cam disc, and the stepper motor provides power for the rotation of the cam disc.

4. A defrosting, face-blowing, and foot-blowing three-mode dual-drive automotive air-conditioning mechanism according to claim 1, characterized in that: The left mixing bracket and the right mixing bracket are respectively installed on the left housing and the right housing; a stepper motor is installed on the left mixing bracket, and the output end of the stepper motor is connected to the left mixing drive gear, and the stepper motor provides power for the rotation of the left mixing drive gear; a stepper motor is installed on the right mixing bracket, and the output end of the stepper motor is connected to the right mixing drive gear, and the stepper motor provides power for the rotation of the right mixing drive gear.

5. A defrosting, face-blowing, and foot-blowing three-mode dual-drive automotive air-conditioning mechanism according to claim 1, characterized in that: The defrosting swing arm is connected to the right defrosting air door and the left defrosting air door, and the stepper motor shaft is directly connected to the defrosting swing arm to rotate the right defrosting air door and the left defrosting air door.

Images