Automobile air conditioner actuator

Abstract

The utility model relates to the technical field of automobile air conditioner actuators, in particular to an automobile air conditioner actuator which comprises a shell assembly, the shell assembly is composed of a lower shell and an upper shell, and the top end of the lower shell is covered with the upper shell. A stepping motor assembly is installed on one side in the shell assembly. The stepping motor assembly is composed of a stator assembly set, a PCB, a coil set and a rotor set. The interior of the shell assembly is further connected with a gear transmission set, and one side of the interior of the lower shell is rotationally connected with an output gear. The stepping motor assembly, the gear transmission set and the output gear are matched to achieve automatic adjustment of the automobile air conditioner, the motor part is simple in structure, few in part number, convenient and fast to assemble and visual in maintenance and adjustment, the transmission connection part is high in transmission efficiency and large in output torque, the manufacturing cost of the structure is reduced, the production cost is controlled, and the service life of the automobile air conditioner is prolonged. And the product competitiveness is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile air-conditioning actuators, in particular to an automobile air-conditioning actuator. Background Art

[0002] The demand for intelligent automobiles is becoming increasingly obvious, and intelligent control has entered people's lives. There is an increasing demand for intelligent air outlet control systems for automotive air conditioners. The use of actuators in air conditioning systems to control the air outlet position, thereby automatically adjusting the air direction of the air conditioner, such as air conditioning in motor vehicles, has become a new development direction.

[0003] At present, most of the automotive air-conditioning actuators use DC motors or claw-pole stepper motors with worm gear transmission. This type of actuator has a complex structure, low transmission efficiency, difficult parts processing, and many parts and assembly processes, resulting in high costs. With the full popularization of automobiles, market competition has become more intense. In the competitive market, if an enterprise wants to occupy a favorable position, it must improve its technology and reduce its production costs. Therefore, an automotive air-conditioning actuator is needed. Utility Model Content

[0004] The utility model aims to provide an automobile air-conditioning actuator to solve the problems of complex structure, low transmission efficiency, difficult parts processing, and high cost caused by multiple component assembly processes in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automobile air-conditioning actuator, comprising a housing assembly, wherein the housing assembly is composed of a lower housing and an upper housing, the top end of the lower housing is covered with an upper housing, and the upper housing and the lower housing are fastened to each other; a stepper motor assembly is installed on one side inside the housing assembly, and the stepper motor assembly is composed of a stator assembly group, a PCB board, a coil group and a rotor group, the stator assembly group is installed inside the lower housing, and the surface of the stator assembly group is connected with a PCB board, the PCB board is welded to the pins of the stator assembly group, and a PIN terminal group is installed at one end of the PCB board; a gear transmission group is also connected inside the housing assembly, and the gear transmission group is used to transmit the power output by the stepper motor assembly; an output gear is rotatably connected to one side inside the lower housing, and the stepper motor assembly drives the output gear to rotate through the gear transmission group.

[0006] Preferably, a PIN pin connector is provided at one end of the lower shell, and the PIN pin connector is integrally injection molded with the lower shell, and an end of the PIN pin terminal group away from the PCB board extends to the inside of the PIN pin connector.

[0007] Preferably, an output docking port is provided on the surface of the lower shell, which facilitates the output docking work, and one end of the output gear extends to the interior of the output docking port; two sets of screw fixing positions are provided on one side of the upper shell, which facilitate the installation of the automobile air-conditioning actuator.

[0008] Preferably, four coil groups are installed inside the stator assembly group, and a rotor group is installed at the center of the stator assembly group.

[0009] Preferably, the gear transmission group includes a slave gear, a transmission gear and a main gear, the main gear is rotatably connected to the inside of the lower shell, and the main gear is meshed with the gear part of the rotor group.

[0010] Preferably, the transmission gear is rotatably connected inside the lower shell, and the transmission gear is meshed with the main gear, the slave gear is rotatably connected inside the lower shell, and the transmission gear is meshed with the transmission gear, and the slave gear is meshed with the output gear.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the automobile air-conditioning actuator is provided with a stepper motor assembly, a gear transmission group and an output gear; a stator assembly group, a PCB board, four coil groups and a rotor group are combined together as a stepper motor assembly, which is installed and fixed inside the lower shell of the actuator, and the PIN pin connector and the lower shell are integrally injection molded. Compared with other companies, one less part is made, the structure is more compact and the cost is reduced; the rotor group of the utility model is integrally injection molded by the rotor gear and the magnetic ring, the coaxiality is guaranteed, the pulling force is strong and it is not easy to fall off, and compared with the finished motor, there is no need to press the rotor gear. The magnetic ring is made of neodymium iron boron and is divided into multiple pairs of magnetic poles with high magnetic field strength. The stator assembly is composed of laminated silicon steel sheets with four coil groups installed inside to form magnetic poles, which are fixed in the gear box by positioning columns, making installation simple and quick. During implementation, the stepper motor assembly, gear transmission group and output gear are used to cooperate to achieve automatic adjustment of the car air conditioner. The motor part has a simple structure, a small number of parts, convenient and quick assembly, and intuitive maintenance and adjustment. The transmission connection part has high transmission efficiency and large output torque. The manufacturing cost of this structure is reduced, the production cost is controlled, and the product competitiveness is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional inverted state structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the utility model in the upright state;

[0014] Figure 3 It is a schematic diagram of the enlarged structure of the lower shell of the utility model;

[0015] Figure 4 It is an enlarged structural diagram of the stepping motor assembly of the utility model;

[0016] Figure 5 It is an enlarged structural schematic diagram of the stator assembly group of the utility model;

[0017] Figure 6 This is a schematic diagram of the exploded structure of the stepper motor assembly of the utility model;

[0018] Figure 7 It is an enlarged structural diagram of the gear transmission group of the utility model.

[0019] In the figure: 1. Shell assembly; 11. Lower shell; 111. PIN pin socket; 112. Output docking port; 12. Upper shell; 121. Screw fixing position; 2. Stepper motor assembly; 21. Stator assembly group; 22. PCB board; 221. PIN terminal group; 23. Coil group; 24. Rotor group; 3. Gear transmission group; 31. Slave gear; 32. Transmission gear; 33. Main gear; 4. Output gear. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] The utility model provides an automobile air conditioning actuator with a structure as follows Figure 1 , Figure 2 as well as Figure 3 As shown, the housing assembly 1 includes a housing assembly 1, which is composed of a lower housing 11 and an upper housing 12. The top end of the lower housing 11 is covered with the upper housing 12, and the upper housing 12 and the lower housing 11 are fastened to each other. A PIN pin socket 111 is provided at one end of the lower housing 11, and the PIN pin socket 111 is integrally injection-molded with the lower housing 11, and a PIN pin terminal group 221 extends to the inside of the PIN pin socket 111 away from the end of the PCB board 22. An output docking port 112 is provided on the surface of the lower housing 11, and the output docking port 112 facilitates the docking work of the output, and one end of the output gear 4 extends to the inside of the output docking port 112; two groups of screw fixing positions 121 are provided on one side of the upper housing 12, and the screw fixing position 121 facilitates the installation work of the automobile air-conditioning actuator. A stepper motor assembly 2 is installed on one side of the housing assembly 1, and the stepper motor assembly 2 is composed of a stator assembly group 21, a PCB board 22, a coil group 23 and a rotor group 24.

[0022] The stepper motor component 2 of the actuator adopts a built-in assembly method. The rotor group 24 is composed of a rotor gear and a magnetic ring that are integrally injection molded. The coil group 23 is composed of a plastic frame, two pins and a copper wire winding. The stator assembly group 21 is composed of multiple silicon steel sheet stacks, and the number can be freely combined.

[0023] The four coil windings are evenly arranged at 90 degrees and fixed in the stator assembly group 21. The copper windings of the coil group 23 and the inlet and outlet wire ends are respectively welded on the pin terminals, and the pins are welded together with the PCB board 22. Each coil group 23 is connected in series with the opposite coil group 23 through the PCB board, and two by two form a loop to form excitation.

[0024] Furthermore, if Figure 4 , Figure 5 as well as Figure 6 As shown, the stator assembly group 21 is installed inside the lower shell 11, and a PCB board 22 is connected to the surface of the stator assembly group 21, the PCB board 22 is welded to the pins of the stator assembly group 21, and a PIN terminal group 221 is installed at one end of the PCB board 22, four coil groups 23 are installed inside the stator assembly group 21, and a rotor group 24 is installed at the center of the stator assembly group 21.

[0025] The rotor assembly 24 of the utility model is formed by integral injection molding of the rotor gear and the magnetic ring, with guaranteed coaxiality, strong pulling force and not easy to fall off. Compared with the finished motor, there is no need to press the rotor gear in the process step. The magnetic ring adopts neodymium iron boron, which is divided into multiple pairs of magnetic poles and has a high magnetic field strength; the stator assembly group 21 is composed of laminated silicon steel sheets, with four coil groups 23 installed inside to form magnetic poles, which are fixed in the gear box by positioning columns, and the installation is simple and fast; the PCB board 22 is welded and fixed with the eight pins of the coil group 23, and the PCB board 22 integrates the control chip and the PIN terminal group 221. The PIN terminal group 221 is plugged into the external plug of the car to receive instructions, control the operation of the coil, form a magnetic circuit, drive the rotor group 24 to rotate, and thus drive the entire gear transmission group 3 to work.

[0026] Furthermore, if Figure 2 as well as Figure 7As shown, the interior of the housing assembly 1 is also connected to a gear transmission group 3, which is used to transmit the power output by the stepper motor assembly 2. The gear transmission group 3 includes a slave gear 31, a transmission gear 32 and a main gear 33. The main gear 33 is rotatably connected to the interior of the lower housing 11, and the main gear 33 is meshed with the gear portion of the rotor assembly 24. The transmission gear 32 is rotatably connected to the interior of the lower housing 11, and the transmission gear 32 is meshed with the main gear 33. The slave gear 31 is rotatably connected to the interior of the lower housing 11, and the transmission gear 32 is meshed with the transmission gear 32, and the slave gear 31 is meshed with the output gear 4. One side of the interior of the lower housing 11 is rotatably connected to the output gear 4, and the stepper motor assembly 2 drives the output gear 4 to rotate through the gear transmission group 3.

[0027] A stator assembly group 21, a PCB board 22, four coil groups 23 and a rotor group 24 are combined together as a stepper motor assembly 2, which is installed and fixed inside the lower shell 11 of the actuator. The PIN pin socket 111 and the lower shell 11 are integrally injection molded. Compared with other manufacturers, one less part is used, the structure is more compact and the cost is reduced.

[0028] Most of the existing automobile air-conditioning actuator gearbox transmission parts adopt the form of worm / turbine + gear. This method has low transmission efficiency and the difficulty in processing the worm and turbine leads to increased costs. The actuator gearbox adopts a spur gear 5-stage transmission gear train. The rotor group 24 is powered by a stepper motor to drive the main gear 33, the transmission gear 32, and the slave gear 31. Finally, the output gear 4 connects with the automobile parts to complete the power output. This structure of the gear system has high transmission efficiency, simple gear injection molding, convenient dimensional measurement, and easy to ensure product accuracy. The gear runs smoothly, with low noise, high transmission ratio, and large output torque.

[0029] In the above automobile air conditioner actuator, the stepper motor assembly 2, the gear transmission group 3 and the output gear 4 cooperate to realize the automatic adjustment of the automobile air conditioner. The motor part has a simple structure, a small number of parts, convenient and fast assembly, and intuitive maintenance and adjustment. The transmission connection part has high transmission efficiency and large output torque. The manufacturing cost of this structure is reduced, the production cost is controlled, and the product competitiveness is improved.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. An automotive air-conditioning actuator, comprising a housing assembly (1), characterized in that: The housing assembly (1) is composed of a lower housing (11) and an upper housing (12); the upper end of the lower housing (11) is covered with the upper housing (12), and the upper housing (12) and the lower housing (11) are fastened to each other; a stepper motor assembly (2) is installed on one side of the interior of the housing assembly (1); the stepper motor assembly (2) is composed of a stator assembly group (21), a PCB board (22), a coil group (23) and a rotor group (24); the stator assembly group (21) is installed inside the lower housing (11), and the stator assembly group (21) is fastened to the rotor group (24). A PCB board (22) is connected to the surface of the stator assembly assembly (21), the PCB board (22) is welded to the pins of the stator assembly assembly (21), and a PIN terminal group (221) is installed at one end of the PCB board (22); a gear transmission group (3) is also connected to the inside of the housing assembly (1), and the gear transmission group (3) is used to transmit the power output by the stepping motor assembly (2); an output gear (4) is rotatably connected to one side of the inside of the lower housing (11), and the stepping motor assembly (2) drives the output gear (4) to rotate through the gear transmission group (3).

2. The automotive air conditioning actuator according to claim 1, characterized in that: A PIN pin socket (111) is provided at one end of the lower housing (11), and the PIN pin socket (111) and the lower housing (11) are integrally injection molded, and an end of the PIN pin terminal group (221) away from the PCB board (22) extends to the interior of the PIN pin socket (111).

3. The automotive air conditioning actuator according to claim 1, characterized in that: The surface of the lower shell (11) is provided with an output docking port (112), the output docking port (112) facilitates the output docking work, and one end of the output gear (4) extends to the inside of the output docking port (112); one side of the upper shell (12) is provided with two groups of screw fixing positions (121), the screw fixing positions (121) facilitate the installation work of the automobile air conditioner actuator.

4. The automotive air-conditioning actuator according to claim 1, characterized in that: Four coil groups (23) are installed inside the stator assembly group (21), and a rotor group (24) is installed at the center of the stator assembly group (21).

5. The automotive air-conditioning actuator according to claim 1, characterized in that: The gear transmission group (3) comprises a slave gear (31), a transmission gear (32) and a main gear (33); the main gear (33) is rotatably connected to the interior of the lower housing (11), and the main gear (33) is meshed with the gear portion of the rotor group (24).

6. The automotive air-conditioning actuator according to claim 5, characterized in that: The transmission gear (32) is rotatably connected to the interior of the lower housing (11), and the transmission gear (32) and the main gear (33) are meshed with each other. The slave gear (31) is rotatably connected to the interior of the lower housing (11), and the transmission gears (32) and the transmission gears (32) are meshed with each other, and the slave gear (31) and the output gear (4) are meshed with each other.

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