System for driving air conditioner and fresh air through independent motor
By employing a design where one motor drives two fans in the air conditioning and fresh air system, and utilizing precision gear sets and telescopic rods to achieve flexible operation and speed adjustment of the fans, the problem of single operating modes in existing technologies is solved, providing a better user experience and adaptability.
Patent Information
- Application Number
- CN202520241746.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-17
AI Technical Summary
Existing technologies make it difficult to enable fresh air systems and air conditioning systems to operate at different speeds when running alone or simultaneously, and existing motor drive solutions cannot adapt to complex application environments.
The system uses one motor to drive two fans, and achieves individual operation or different speed adjustment of the fans through a precision gear set and telescopic rod. It is automatically controlled in conjunction with temperature and humidity sensors and air sampling sensors.
It enables flexible operation and speed adjustment of two fans, adapts to various usage environments, provides a better user experience, and avoids problems such as gear jamming and abnormal noise.
Smart Images

Figure CN223939612U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioning technology, and in particular to a system that uses a separate motor to drive an air conditioner and a fresh air system. Background Technology
[0002] The fresh air conditioning system uses a separate motor to drive both the fresh air system and the ordinary air conditioning system, but it is difficult to make the two systems operate independently or at different speeds when they are running simultaneously.
[0003] Chinese patent application number CN03253510.4 discloses a single-motor dual-impeller fan, but it can only drive both impellers simultaneously with the motor. It cannot adjust the speed of one impeller while leaving the other unaffected, or allow one impeller to be on while the other is off. Its application is relatively limited and cannot adapt to complex application environments. Utility Model Content
[0004] Purpose of the utility model: In order to overcome the above shortcomings, the purpose of this utility model is to provide a system that drives air conditioning and fresh air with a single motor. It has a simple structure, is easy to operate, and has a reasonable design. It uses only one motor to drive two fans at the same time. The two fans can run simultaneously through a relatively precise gear set, and can switch gears, run independently, or run at different speeds. It can be used in a variety of environments.
[0005] Technical solution: In order to achieve the above objectives, this utility model provides a system for driving air conditioning and fresh air with a separate motor, including a drive motor, an air conditioning fan, a fresh air fan and a speed adjustment component. The drive motor includes a main body and synchronous output shafts on both sides of the main body. The air conditioning fan and the fresh air fan are located on both sides of the drive motor. The synchronous output shaft is connected to the air conditioning fan and the fresh air fan through the speed adjustment component.
[0006] Furthermore, the gear adjustment assembly includes two sets of adjusting gears and two telescopic rods. The adjusting gear sets are mounted on the synchronous output shaft and the telescopic rods, and the two telescopic rods are respectively located on the air conditioning fan and the fresh air fan. By adjusting the extension length of the telescopic rods, different gears in the adjusting gear sets are engaged, thereby adjusting the gear. At the same time, the telescopic rods on the air conditioning fan and the fresh air fan can be controlled independently, allowing for individual gear adjustment or shutdown.
[0007] Furthermore, the telescopic rod is separately mounted on the air conditioning fan and the fresh air fan, and the adjusting gear set includes a first gear, a second gear, a third gear mounted on the synchronous output shaft, and a fourth gear, a fifth gear, and a sixth gear mounted on the telescopic rod.
[0008] The first, second, and third gears are sequentially mounted on the synchronous output shaft with increasing diameters. The third gear is closer to the main body. The fourth, fifth, and sixth gears are sequentially mounted on the telescopic rod with decreasing diameters. The sixth gear is closer to the air conditioning fan or fresh air fan. Different diameter gears mesh to achieve different transmission ratios, thereby enabling the air conditioning fan and fresh air fan to operate at different speeds.
[0009] The first, second, and third gears can mesh with the sixth, fifth, and fourth gears, respectively, and all of these gears are helical gears. Using helical gears makes it easier for the two gears to engage during gear shifting, preventing jamming.
[0010] Furthermore, the telescopic rod is an electrically driven telescopic rod, and it is coaxially connected to the air conditioning fan and the fresh air fan. The telescopic rod serves as both a gear-adjusting component and a drive shaft.
[0011] Preferably, the control system includes a main control system, a temperature and humidity sensor, an air sampling sensor, and a remote control module. The temperature and humidity sensor, the air sampling sensor, the remote control module, the drive motor, and the telescopic rod are respectively connected to the main control system. The temperature and humidity sensor and the air sampling sensor are installed in the operating environment. The remote control module is communicatively connected to the remote controller.
[0012] The temperature and humidity sensor collects ambient temperature and humidity data and transmits this data to the main control system. The main control system then controls the air conditioner fan speed and operation based on this data and a pre-set program. Similarly, the air quality sensor collects ambient air quality data and transmits this data to the main control system. The main control system then controls the fresh air fan speed and operation based on a pre-set program. The remote control can select the automatic control mode mentioned above or manually control the two fans by adjusting their speed and operation as desired.
[0013] As can be seen from the above technical solution, this utility model has the following beneficial effects:
[0014] 1. A system for driving air conditioning and fresh air with a single motor, which has a simple structure, is easy to operate, and has a reasonable design. It uses only one motor to drive two fans at the same time. The two fans can operate simultaneously, switch gears, run independently, or operate at different speeds through a relatively precise gear set, making it suitable for a wide range of usage environments.
[0015] 2. The gears in the adjusting gear set of this utility model are all helical gears. At the same time, the drive motor will stop briefly when shifting gears. After the telescopic rod extends to the position and a set of gears meshes, the drive motor will restart. This can prevent gear collisions or jamming during gear shifting, and there will be no abnormal noise, resulting in a better user experience. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a system structure for a single motor driving an air conditioner and a fresh air system according to the present invention;
[0017] Figure 2 This is a schematic diagram of the assembly of the telescopic rod described in this utility model;
[0018] Figure 3 This is a diagram of the control system architecture of this utility model;
[0019] In the diagram: 1-Drive motor, 11-Body, 12-Synchronous drive shaft, 2-Air conditioning fan, 3-Fresh air fan, 4-Gear adjustment assembly, 41-Adjustment gear set, 411-First gear, 412-Second gear, 413-Third gear, 414-Fourth gear, 415-Fifth gear, 416-Sixth gear. Detailed Implementation
[0020] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.
[0021] Please see Figure 1 A system for driving air conditioning and fresh air by a single motor includes a drive motor 1, an air conditioning fan 2, a fresh air fan 3, and a speed adjustment component 4. The drive motor 1 includes a body 11 and synchronous output shafts 12 on both sides of the body 11. The air conditioning fan 2 and the fresh air fan 3 are located on both sides of the drive motor 1. The synchronous output shafts 12 are connected to the air conditioning fan 2 and the fresh air fan 3 through the speed adjustment component 4.
[0022] The gear adjustment assembly 4 includes two sets of adjustment gears 41 and two telescopic rods 42. The adjustment gears 41 are mounted on the synchronous output shaft 12 and the telescopic rods 42, and the two telescopic rods 42 are respectively mounted on the air conditioning fan 2 and the fresh air fan 3.
[0023] like Figure 1 As shown, the telescopic rod 42 is respectively mounted on the air conditioning fan 2 and the fresh air fan 3. The adjusting gear set 41 includes a first gear 411, a second gear 412, a third gear 413 mounted on the synchronous output shaft 12, and a fourth gear 414, a fifth gear 415, and a sixth gear 416 mounted on the telescopic rod 42.
[0024] Preferably, the first gear 411, the second gear 412, and the third gear 413 are sequentially mounted on the synchronous output shaft 12 with increasing diameters. The third gear 413 is located near the body 11. The fourth gear 414, the fifth gear 415, and the sixth gear 416 are sequentially mounted on the telescopic rod 42 with decreasing diameters. The sixth gear 416 is located near the air conditioning fan 2 or the fresh air fan 3. In this embodiment, the adjusting gear set 41 is a three-speed adjusting gear set. Users can choose the number of speeds by simply increasing the number of gears.
[0025] In a preferred embodiment, the first gear 411, the second gear 412, and the third gear 413 can mesh with the sixth gear 416, the fifth gear 415, and the fourth gear 414, respectively, and all of the above gears are helical gears.
[0026] Please see Figure 2 The telescopic rod 42 is an electrically driven telescopic rod, and the telescopic rod 42 is coaxially connected to the air conditioner fan 2 and the fresh air fan 3.
[0027] like Figure 3 As shown, it also includes a control system, which includes a main control system, a temperature and humidity sensor, an air sampling sensor, and a remote control module. The temperature and humidity sensor, the air sampling sensor, the remote control module, the drive motor 1, and the telescopic rod 42 are respectively connected to the main control system. The temperature and humidity sensor and the air sampling sensor are installed in the operating environment. The remote control module is communicatively connected to the remote controller.
[0028] Users can choose to integrate multiple sensors for the air collection sensor. In this embodiment, the air collection sensor includes a formaldehyde sensor, a carbon dioxide sensor, and a PM2.5 sensor.
[0029] The working process of the separate motor-driven air conditioning and fresh air system provided by this utility model is as follows:
[0030] S1 allows users to select the operating mode, including manual control mode and automatic control mode.
[0031] S2, the main control system issues a command, the telescopic rod 42 on the air conditioner fan 2 extends and drives the motor 1 to start and drives the air conditioner fan 2 through the adjusting gear set 41, the telescopic rod 42 on the fresh air fan 3 extends and drives the motor 1 to start and drives the fresh air fan 3 through the adjusting gear set 41;
[0032] S3 adjusts the extension length of the telescopic rod 42 according to the instructions issued by the main control system, thereby adjusting the gear shift for different gear meshing transmissions.
[0033] The manual control mode specifically refers to the user using function buttons on the remote control to turn the air conditioner fan 2 and the fresh air fan 3 on and off, and adjust their speeds.
[0034] The automatic control mode is as follows: the user selects the automatic mode on the remote control, the data collected by the temperature and humidity sensor is transmitted to the main control system, and the main control system adjusts the start, stop and speed of the air conditioner fan 2 by controlling the extension length of the telescopic rod 42. The air collection sensor transmits the data it collects to the main control system, and the main control system adjusts the start, stop and speed of the fresh air fan 3 by controlling the extension length of the telescopic rod 42.
[0035] When shifting gears, the telescopic rod 42 moves, and the drive motor 1 stops. When the telescopic rod 42 moves to its position, the drive motor 1 starts.
[0036] In this embodiment, the main control system sets three control intervals according to the number of gears. In the automatic control mode, when the ambient temperature is in the first temperature control interval, the main control system controls the telescopic rod 42 to extend. At this time, the drive motor 1 pauses briefly. When the fourth gear 414 meshes with the third gear 413, the drive motor 1 starts. At this time, the air conditioner fan 2, which obtains the maximum transmission ratio, runs at high speed. When the ambient temperature is in the second temperature control interval, the main control system controls the telescopic rod 42 to retract. The fifth gear 415 meshes with the second gear, and the air conditioner fan 2 runs at medium speed. When the ambient temperature is in the third temperature control interval, the main control system controls the telescopic rod 42 to continue to retract. The sixth gear 416 meshes with the first gear 411, and the air conditioner fan 2 runs at low speed. When the ambient temperature is lower than the third temperature control interval, the main control system controls the telescopic rod 42 to retract further. The drive motor 1 no longer transmits torque to the air conditioner fan 2, and the air conditioner fan 2 stops running.
[0037] Similarly, in the automatic control mode, when the concentration of a certain indicator in the ambient air is in the first control range, the main control system uses the gear adjustment component 4 to make the fresh air fan 3 run at a high speed, and so on.
[0038] In this invention, the air conditioning fan 2 and the fresh air fan 3 are driven by the same drive motor 1, but they can run simultaneously or independently and have their speeds adjusted separately.
[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.
Claims
1. A system for driving air conditioning and fresh air with a separate motor, characterized in that, The device includes a drive motor (1), an air conditioning fan (2), a fresh air fan (3), and a gear adjustment assembly (4). The drive motor (1) includes a body (11) and synchronous output shafts (12) on both sides of the body (11). The air conditioning fan (2) and the fresh air fan (3) are located on both sides of the drive motor (1). The synchronous output shafts (12) are connected to the air conditioning fan (2) and the fresh air fan (3) through the gear adjustment assembly (4).
2. The system for separately driven air conditioning and fresh air systems according to claim 1, characterized in that, The gear adjustment assembly (4) includes two sets of adjustment gears (41) and two telescopic rods (42). The adjustment gears (41) are mounted on the synchronous output shaft (12) and the telescopic rods (42). The two telescopic rods (42) are respectively mounted on the air conditioning fan (2) and the fresh air fan (3).
3. A system for separately driven air conditioning and fresh air systems according to claim 2, characterized in that, The telescopic rod (42) is respectively installed on the air conditioning fan (2) and the fresh air fan (3). The adjusting gear set (41) includes a first gear (411), a second gear (412), a third gear (413) installed on the synchronous output shaft (12) and a fourth gear (414), a fifth gear (415), and a sixth gear (416) installed on the telescopic rod (42).
4. A system for separately driven air conditioning and fresh air systems according to claim 3, characterized in that, The first gear (411), the second gear (412), and the third gear (413) are sequentially arranged on the synchronous output shaft (12) with increasing diameters. The third gear (413) is close to the body (11). The fourth gear (414), the fifth gear (415), and the sixth gear (416) are sequentially arranged on the telescopic rod (42) with decreasing diameters. The sixth gear (416) is close to the air conditioning fan (2) or the fresh air fan (3).
5. A system for separately driven air conditioning and fresh air systems according to claim 4, characterized in that, The first gear (411), the second gear (412), and the third gear (413) can mesh with the sixth gear (416), the fifth gear (415), and the fourth gear (414), respectively. All of the above gears are helical gears.
6. A system for separately driven air conditioning and fresh air systems according to claim 5, characterized in that, The telescopic rod (42) is an electrically driven telescopic rod, and the telescopic rod (42) is coaxially connected to the air conditioning fan (2) and the fresh air fan (3).
7. A system for separately driven air conditioning and fresh air systems according to claim 1, characterized in that, It also includes a control system, which includes a main control system, a temperature and humidity sensor, an air collection sensor, and a remote control module. The temperature and humidity sensor, the air collection sensor, the remote control module, the drive motor (1), and the telescopic rod (42) are respectively connected to the main control system. The temperature and humidity sensor and the air collection sensor are installed in the usage environment. The remote control module is communicatively connected to the remote controller.
Citation Information
Patent Citations
Single-motor double-vane fan
CN2648124Y