Air conditioner rotation actuator based on three-phase stepping motor and automobile

Abstract

The utility model provides an air conditioner rotation actuator based on a three-phase stepping motor and an automobile, and relates to the technical field of automobile air conditioners, and the air conditioner rotation actuator comprises a main gear, and the shaft end of the main gear is connected with a shaft of an air conditioner air outlet grating in a clamped mode; the three-phase stepping motor is in transmission connection with the main gear and drives the main gear to rotate so as to drive the air conditioner air outlet grating to rotate; the main gear and the three-phase stepping motor are packaged in the shell. The actuator has the advantages that the three-phase stepping motor which has the advantages of being low in operation noise, small in high-frequency torque attenuation and the like is used for driving the main gear, vibration of the actuator in the operation process is reduced, the working stability and transmission precision of the actuator are improved, and meanwhile noise is lowered.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile air conditioner, especially to a kind of air conditioner rotary actuator based on three-phase stepping motor and automobile. BACKGROUND

[0002] Automobile air conditioner as the temperature adjustment in car of a kind of electrical appliance, the comfort of in car has played very big effect.Usually by automobile air conditioner rotary actuator driven air conditioner air outlet grille rotates, to change the direction of airflow.

[0003] At present, automobile air conditioner rotary actuator is generally driven gear by two-phase stepping motor, gear drives the shaft of grille again, two-phase stepping motor in working process, working noise is big, and with the increase of rotational speed, motor torque attenuation is serious, the working stability and transmission accuracy of actuator are influenced, and big noise can be generated. INVENTION CONTENTS

[0004] In view of the problems in the prior art, the utility model provides a kind of air conditioner rotary actuator based on three-phase stepping motor, comprising:

[0005] Main gear, the axle end of the main gear is connected with the axle of air conditioner air outlet grille;

[0006] Three-phase stepping motor, with the main gear transmission connection, drive the main gear rotates to drive the air conditioner air outlet grille rotates;

[0007] Shell, the main gear and the motor are packaged in the shell inside.

[0008] Preferably, the inner wall of the shell is provided with positioning groove corresponding to the two ends of the motor;

[0009] The two ends of the motor are provided with buffer structure, and the buffer structure is installed in the positioning groove.

[0010] Preferably, the buffer structure comprises:

[0011] Top limiting piece, set in the top of the motor;

[0012] Bottom limiting piece, set in the bottom of the motor;

[0013] Rubber pad is sleeved on the top limiting piece and the bottom limiting piece, and each rubber pad is fixed in a positioning groove.

[0014] Preferably, the three-phase stepping motor and the main gear are connected by transmission structure, and the transmission structure comprises:

[0015] Worm, is sleeved on the rotating shaft of the motor;

[0016] At least one secondary gear, the large gear of the secondary gear is engaged with the worm, and the small gear of the secondary gear is engaged with the main gear.

[0017] Preferably, the motor is circumferentially provided with a power supply control end, which is electrically connected with the PCB board;

[0018] A signal connector is further provided, which is electrically connected with the PCB board, and the connector port of the connector extends outward from the shell to connect with the control terminal;

[0019] The motor is circumferentially further provided with a grounding terminal, which is electrically connected with the PCB board through the FCB board.

[0020] Preferably, the motor has a gap with the shell.

[0021] Preferably, the shaft end of the main gear is provided with a plum blossom groove, and the shaft of the air outlet grille of the air conditioner is inserted into the plum blossom groove.

[0022] Preferably, the shell comprises an upper shell and a lower shell.

[0023] The circumferential side of the upper shell is provided with a plurality of elastic cards, and the circumferential side of the lower shell is provided with a plurality of card slots, each of the elastic cards is clamped in one of the card slots, so as to connect and fix the upper shell and the lower shell.

[0024] Preferably, the bottom of the upper shell is provided with an orifice, and the shaft end of the main gear is rotationally matched with the orifice.

[0025] The utility model also provides a car, install the air conditioner rotary actuator like above-mentioned in the car.

[0026] The above technical scheme has the following advantages or beneficial effects:

[0027] The three-phase stepping motor with the advantages of small running noise and small high-frequency torque attenuation is used to drive the main gear, so as to reduce the vibration of the actuator in the running process, improve the working stability and transmission accuracy of the actuator, and also reduce the noise. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 In a preferred embodiment of the utility model, a structure schematic diagram of the air conditioner rotary actuator based on the three-phase stepping motor is provided.

[0029] Figure 2 In a preferred embodiment of the utility model, a structure schematic diagram of the air conditioner rotary actuator based on the three-phase stepping motor is provided.

[0030] Figure 3For the preferred embodiment of the utility model, the structure diagram of the motor shows that the motor is connected with the air conditioner outlet grille through the main gear 1.

[0031] Figure 4 For the preferred embodiment of the utility model, the structure diagram of the connector shows that the connector is connected with the air conditioner outlet grille through the main gear 1.

[0032] Figure 5 For the preferred embodiment of the utility model, the structure diagram of the upper shell shows that the upper shell is connected with the air conditioner outlet grille through the main gear 1.

[0033] Figure 6 For the preferred embodiment of the utility model, the structure diagram of the main gear shows that the main gear is connected with the air conditioner outlet grille through the main gear 1.

[0034] Figure 7 For the preferred embodiment of the utility model, the structure diagram of the first secondary gear shows that the first secondary gear is connected with the air conditioner outlet grille through the main gear 1.

[0035] Figure 8 For the preferred embodiment of the utility model, the structure diagram of the second secondary gear shows that the second secondary gear is connected with the air conditioner outlet grille through the main gear 1. DETAILED DESCRIPTION

[0036] The utility model will be explained in detail below in combination with the drawings and specific embodiments. The utility model is not limited to the embodiment, and other embodiments can also belong to the scope of the utility model as long as they meet the main idea of the utility model.

[0037] For the preferred embodiment of the utility model, based on the above problems existing in the prior art, a three-phase stepping motor based air conditioner rotary actuator is provided, as shown in Figure 1 、 Figure 2 and Figure 6 , which comprises:

[0038] The main gear 1 is connected with the shaft of the air conditioner outlet grille through the shaft end 11 of the main gear 1.

[0039] The three-phase stepping motor 3 is drivingly connected with the main gear 1 and drives the main gear 1 to rotate to drive the air conditioner outlet grille to rotate.

[0040] The shell 5 is connected with the main gear 1 and the three-phase stepping motor 3.

[0041] Further, the inner wall of the shell 5 in the embodiment is provided with a positioning groove 51 corresponding to the two ends of the three-phase stepping motor 3.

[0042] The two ends of the three-phase stepping motor 3 are provided with a buffer structure, and the buffer structure is installed in the positioning groove 51.

[0043] The buffering structure in a preferred embodiment includes: the top of the three-phase stepper motor 3 is provided with a top limiting piece 31, the bottom of the three-phase stepper motor 3 is provided with a bottom limiting piece 32, and a rubber pad 33 is sleeved on the top limiting piece and the bottom limiting piece, and each rubber pad 33 is correspondingly fixed in a positioning groove 51.

[0044] Specifically, in this embodiment, the three-phase stepper motor 3 is fixed in the housing 5 of the actuator by the top limiting piece 31 and the bottom limiting piece 32 at both ends of the motor and the positioning groove 51 provided on the inner wall of the housing 5, and the rubber pads 33 sleeved on the top limiting piece 31 and the bottom limiting piece 32 can form a buffer layer between the two limiting pieces and the positioning groove 51 to reduce the vibration of the three-phase stepper motor 3 during operation, improve the working stability and transmission accuracy of the actuator, and also reduce noise.

[0045] In a preferred embodiment, the rubber pad 33 sleeved on the bottom limiting piece 32 is oval, and the rubber pad 33 sleeved on the top limiting piece 31 is circular.

[0046] Specifically, in this embodiment, the rubber pad 33 sleeved on the bottom limiting piece 32 is designed as an oval, while the rubber pad 33 sleeved on the top limiting piece 31 remains circular. This asymmetric design brings many benefits:

[0047] Enhanced adaptability and stability: Oval rubber pads 33 have a larger contact area and more flexible deformation ability in the horizontal direction (i.e., perpendicular to the motor axis) compared to circular ones. This helps better adapt to non-uniform stress conditions that may occur at the bottom of the motor due to manufacturing tolerances, installation errors, or slight displacements during operation, providing more stable support and buffering effects. Circular rubber pads continue to provide uniform and reliable buffering at the top, combining both to ensure stability in the vertical direction and enhance adaptability in the horizontal direction.

[0048] Optimized vibration absorption: Different shapes of rubber pads will produce different deformation modes when subjected to vibration. Oval rubber pads can more effectively absorb and disperse vibration energy in multiple directions, especially lateral vibrations that may occur during motor operation, which helps further reduce noise and vibration transmission to the housing and the surrounding environment. Circular rubber pads mainly absorb vertical vibrations, and the two work together to achieve more comprehensive vibration control.

[0049] Improved durability and maintainability: The oval design of the rubber pads disperses stress, reducing the risk of single-point wear and extending the life of the buffering structure. At the same time, this design also facilitates the identification of buffering needs in different parts during installation and maintenance, making it easier to check and replace worn-out rubber pads, improving the convenience and efficiency of maintenance.

[0050] In a preferred embodiment, as shown in Figure 3 and Figure 4 The circumferential direction of the three-phase stepping motor 3 is provided with a power supply control end 34, which is electrically connected with the PCB board 35.

[0051] A signal connector 36 is also provided, which is electrically connected with the PCB board 35, and the connector port of the connector 36 extends outward from the shell 5 to connect the control terminal.

[0052] The circumferential direction of the motor is also provided with a grounding end 37, which is electrically connected with the PCB board 35 through the FCB board 38.

[0053] Specifically, in this embodiment, the control terminal (such as the automobile control system) sends a LIN signal to the PCB board 35 through the signal connector 36 to control the start, stop, speed regulation and steering adjustment of the three-phase stepping motor 3, thereby increasing the diversity of control of the air conditioner air outlet grille.

[0054] Specifically, in this embodiment, the three-phase stepping motor 3 is used, which has the advantages of small running noise and small high-frequency torque attenuation.

[0055] In a preferred embodiment, there is a gap between the three-phase stepping motor 3 and the shell 5.

[0056] Specifically, in this embodiment, the existence of the gap avoids the direct contact between the three-phase stepping motor 3 and the shell 5, thereby reducing the wear caused by friction. This not only helps to prolong the service life of the motor, but also reduces the noise and vibration caused by wear.

[0057] In a preferred embodiment, the shell 5 includes an upper shell 52 and a lower shell 53.

[0058] The circumferential side of the upper shell 52 is provided with a plurality of elastic cards 521, and the circumferential side of the lower shell 53 is provided with a plurality of card slots 531, each elastic card 521 is clamped in a card slot 531 to connect and fix the upper shell 52 and the lower shell 53.

[0059] Specifically, as shown in Figure 2 and 5 Five elastic cards 521 are arranged around the upper shell 52, and five card slots 531 are arranged around the lower shell 53. The upper and lower shells are fixed and detachable by the cooperation of the elastic cards 521 and the card slots 531.

[0060] Of course, in other embodiments, the upper shell 52 and the lower shell 53 can also be detachably connected in other ways.

[0061] In a preferred embodiment, the bottom of the upper shell 52 is provided with an orifice 522, and the shaft end 11 of the main gear 1 is rotatably matched with the orifice 522.

[0062] Specifically, as shown in Figure 6 , the main gear 1 is formed with an axial end 11, the axial end 11 is rotationally matched with the hole 522, and the end face of the axial end 11 is a plum blossom groove 2, and the shaft of the air conditioner air outlet grille is inserted into the plum blossom groove 2.

[0063] Specifically, in the embodiment, the plum blossom groove 2 is designed to enable the force to be uniformly transmitted at a certain angle (such as 15°) into the groove, so that the fastening torque can be more effectively transmitted. Compared with other groove types (such as an inner hexagonal groove), the torque force is more directly transmitted and the loss is smaller.

[0064] In a preferred embodiment, the three-phase stepping motor 3 is drivingly connected with the main gear 1 through a transmission structure 4, and the transmission structure 4 comprises:

[0065] a worm 41 sleeved on the rotating shaft of the motor 1;

[0066] at least one secondary gear, a large gear of the secondary gear is engaged with the worm 41, and a small gear of the secondary gear is engaged with the main gear 1.

[0067] Specifically, as shown in Figure 2 , 5 , 7 and 8, the transmission structure in the embodiment comprises two secondary gears, which are a first secondary gear 42 and a second secondary gear 43, and the inner wall of the upper shell 52 is provided with a first positioning shaft 523 and a second positioning shaft 524, and the first secondary gear 42 and the second secondary gear 43 are arranged on the first positioning shaft 523 and the second positioning shaft 524, respectively.

[0068] Each secondary gear comprises a large gear and a small gear, the large gear of the first secondary gear 42 is engaged with the worm 41, the small gear of the first secondary gear 42 is engaged with the large gear of the second secondary gear 43, and the small gear of the second secondary gear 43 is engaged with the main gear 1. The three-phase stepping motor 3 drives the first secondary gear 42 to rotate through the worm 41, the first secondary gear 42 drives the second secondary gear 43 to rotate after being decelerated, and the second secondary gear 43 drives the main gear 1 to rotate after being decelerated, so as to realize the rotation of the main gear 1, and further drive the air conditioner air outlet grille to rotate.

[0069] The speed ratio of the motor and the main gear can be adjusted by increasing / decreasing the number of secondary gears.

[0070] The utility model also provides a kind of automobile, and the air conditioner rotary actuator as described above is installed in automobile.

[0071] The above merely describes the preferred embodiments of the present application, and is not intended to limit the implementation and protection scope of the present application. For those skilled in the art, it should be understood that any equivalent changes and obvious variations made according to the content of the present application and drawings should be included in the protection scope of the present application.

Claims

1. An air conditioning rotary actuator based on a three-phase stepping motor, characterized in that, The utility model relates to an air conditioner rotating actuator, which comprises the following parts: a main gear, the shaft end of which is connected with the shaft of an air conditioner air outlet grille; a three-phase stepping motor, which is in transmission connection with the main gear and drives the main gear to rotate to drive the air conditioner air outlet grille to rotate; an outer shell, in which the main gear and the three-phase stepping motor are encapsulated.

2. The air conditioning rotary actuator of claim 1, wherein, The inner wall of the outer shell is provided with positioning grooves corresponding to the two ends of the three-phase stepping motor. The two ends of the three-phase stepping motor are provided with buffer structures, which are installed in the positioning grooves.

3. The air conditioning rotary actuator of claim 2, wherein, The buffer structure comprises: a top limiting piece arranged at the top of the three-phase stepping motor; a bottom limiting piece arranged at the bottom of the three-phase stepping motor; a rubber pad is sleeved on the top limiting piece and the bottom limiting piece, and each rubber pad is fixed in a positioning groove.

4. The air conditioning rotary actuator of claim 1, wherein, The three-phase stepping motor and the main gear are in transmission connection through a transmission structure, which comprises: a worm gear sleeved on the rotating shaft of the three-phase stepping motor; at least one secondary gear, the large gear of which is in mesh with the worm gear, and the small gear of which is in mesh with the main gear.

5. The air conditioning rotary actuator of claim 1, wherein, The circumferential surface of the three-phase stepping motor is provided with a power supply control end, which is electrically connected with a PCB board; a signal connector is further arranged, which is electrically connected with the PCB board, and the connector port of the connector extends outward from the outer shell to connect a control terminal; the circumferential surface of the three-phase stepping motor is further provided with a grounding end, which is electrically connected with the PCB board through an FCB board.

6. The air conditioning rotary actuator of claim 1, wherein, The three-phase stepping motor and the outer shell have a gap therebetween.

7. The air conditioning rotary actuator of claim 1, wherein, The shaft end of the main gear is provided with a plum blossom groove, and the shaft of the air conditioner air outlet grille is inserted into the plum blossom groove.

8. The air conditioning rotary actuator of claim 1, wherein, The outer shell comprises an upper shell and a lower shell; the circumferential surface of the upper shell is provided with a plurality of elastic cards, and the circumferential surface of the lower shell is provided with a plurality of card grooves, each elastic card is correspondingly clamped in a card groove to connect and fix the upper shell and the lower shell.

9. The air conditioning rotary actuator of claim 8, wherein, The bottom of the upper shell is provided with an orifice, and the shaft end of the main gear is in rotational cooperation with the orifice.

10. An automobile characterized by comprising: The air conditioner rotating actuator according to any one of claims 1-9 is installed in a car.

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