Electric transmission system, air conditioner outdoor unit and air conditioner system

Abstract

The invention relates to the technical field of air conditioners, in particular to an electric transmission system, an air conditioner outdoor unit and an air conditioner system. The electric transmission system of the present invention comprises: an outer housing; the linear motor assembly comprises a first stator winding, a first rotor and a driving shaft, and the driving shaft is connected with the first rotor; the rotating component is in transmission connection with the driving shaft, and the driving shaft drives the rotating component to rotate when moving linearly; a second rotor is arranged on the rotary component, a second stator winding is arranged on the outer shell, and the rotary component is matched with a directional magnetic field generated by the second stator winding in the process of driving the second rotor to rotate, so that induced electromotive force is generated; and the first wiring terminal is arranged on the outer shell, and the first wiring terminal is electrically connected with the first stator winding. According to the electric transmission system, the functions of a starter and a generator are integrated, the two functions of starting and power generation are achieved, energy is recycled to the maximum extent, and energy consumption is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and specifically provides an electric drive system, an air conditioning outdoor unit and an air conditioning system. Background Art

[0002] Air conditioners usually include an indoor air conditioner unit installed indoors and an outdoor air conditioner unit installed outdoors. The outdoor air conditioner unit is responsible for transferring indoor heat to the outdoors through the circulation of refrigerant and is a very important component of the air conditioning system.

[0003] The power part of the air conditioner outdoor unit mainly includes the compressor motor and the fan motor. In the prior art, the compressor motor and the fan motor work independently, which not only occupies a large space, but also consumes a lot of electricity and does not meet the development needs of energy conservation and environmental protection.

[0004] Accordingly, the art needs a new air conditioning electrical system solution to solve the above problems. Summary of the invention

[0005] The present invention aims to solve the above technical problem, that is, to solve the problem that the motor inside the existing air conditioner occupies a large space, consumes high energy, and has low energy utilization efficiency when the air conditioner is working.

[0006] In a first aspect, the present invention provides an electric transmission system comprising:

[0007] outer shell;

[0008] A linear motor assembly is disposed in the outer shell, the linear motor assembly comprises a first stator winding, a first rotor and a driving shaft, and the driving shaft is connected to the first rotor;

[0009] A rotating member, wherein the rotating member is in driving connection with the driving shaft, and the driving shaft drives the rotating member to rotate when the driving shaft moves linearly; a second rotor is arranged on the rotating member, and a second stator winding is arranged on the outer shell, and when the rotating member drives the second rotor to rotate, the rotating member cooperates with the directional magnetic field generated by the second stator winding to generate an induced electromotive force;

[0010] The first terminal is arranged on the outer shell, and the first terminal is electrically connected to the first stator winding.

[0011] Optionally, it also includes:

[0012] The driven shaft is in transmission connection with the rotary member and can rotate driven by the rotary member.

[0013] Optionally, a rack is provided on the driving shaft, and the rotating member is a gear that cooperates with the rack in transmission.

[0014] Optionally, it also includes:

[0015] A crank-connecting rod assembly, wherein the crank has a rotating end and a free end, the rotating end of the crank is connected to the driving shaft, the free end of the crank is rotationally connected to the first end of the connecting rod, and the second end of the connecting rod is rotationally connected to the rotating member.

[0016] Optionally, it also includes:

[0017] A support frame is arranged on the outer shell and is used to support the linear motor assembly.

[0018] Optionally, it also includes:

[0019] A circuit board, which is arranged in the outer shell, and the second stator winding is arranged on the circuit board;

[0020] The second connecting terminal is arranged on the outer shell, and the second connecting terminal is electrically connected to the circuit board.

[0021] Optionally, it also includes:

[0022] An electric energy storage module is electrically connected to the second wiring terminal and is used to store the electric energy generated by the induced current.

[0023] In a second aspect, the present invention provides an air conditioner outdoor unit, comprising:

[0024] a compressor including a drive shaft;

[0025] As in any one of the electric transmission systems of the first aspect, the active shaft is drivingly connected to the drive shaft.

[0026] Optionally, the electric transmission system further comprises:

[0027] A driven shaft is connected to the rotary member in a transmission manner and can rotate under the drive of the rotary member; the air conditioner outdoor unit also includes:

[0028] A fan is drivingly connected to the output end of the driven shaft.

[0029] In a third aspect, the present invention provides an air conditioning system, comprising: an air conditioning outdoor unit as described in any one of the second aspects.

[0030] The above one or more technical solutions of the present invention have at least one or more of the following Beneficial effects:

[0031] The electric transmission system provided by the embodiment of the present invention integrates the functions of the starter and the generator into one by performing reasonable mechanical transmission design and electromagnetic design on the output end of the linear motor, thereby realizing the two functions of starting and generating electricity, so that the mechanical energy generated by the driving shaft is used to drive the load to do work on the one hand, and is converted into electrical energy on the other hand. In terms of energy conversion, the maximum energy recovery and utilization is achieved, saving energy consumption; in terms of mechanical structure design, this electric transmission system with an integrated starter and generator occupies a small space, thereby improving space utilization.

[0032] The air conditioner outdoor unit provided by the embodiment of the present invention includes the electrical transmission system as described above, wherein the driving shaft is connected to the drive shaft in a transmission manner. In this way, the linear motor assembly can provide linear motion for the air conditioner compressor during use, and the electric energy is converted into mechanical energy through the linear motor assembly to realize the conversion of the gas pressure in the compressor; the output end of the driven shaft is connected to the air conditioner fan in a transmission manner, and through a reasonable electromagnetic design, its blowing function can be realized, which saves space and is beneficial to energy utilization.

[0033] The air conditioning system provided by the embodiment of the present invention includes the air conditioning outdoor unit as described above. The electric energy stored in the electric energy storage module in the electric drive system can be used to power some components of the air conditioning system, thereby improving the utilization rate of electric energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0035] Figure 1 is a cross-sectional schematic diagram of an implementation scheme of the electric transmission system provided in this embodiment;

[0036] Figure 2 is a cross-sectional schematic diagram of another implementation scheme of the electric transmission system provided in this embodiment;

[0037] Figure 3 is a cross-sectional schematic diagram of a third implementation scheme of the electric transmission system provided in this embodiment;

[0038] Figure 4 It is a partial cross-sectional schematic diagram of the electric transmission system provided in this embodiment. Reference numerals list :

[0039] 1-outer shell, 2-linear motor assembly, 21-first stator winding, 22-first rotor, 23-driving shaft, 31-rotating member, 32-second rotor, 33-second stator winding, 41-first terminal, 42-second terminal, 5-driven shaft, 6-rack, 7-support frame, 8-circuit board, 91-crank, 92-connecting rod. DETAILED DESCRIPTION

[0040] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not used to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0041] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the relevant devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, ordinal numbers such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0042] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In some electrical control systems, a starter is often needed to start the engine and a generator is often needed to charge the battery. These two motors not only make the control system more complex, but also increase the volume and mass. For example, in an air-conditioning system, the traditional air-conditioning outdoor unit motor can be divided into air-conditioning compressor motor and air-conditioning fan motor according to the motor type. The two are generally equipped with independent power supply equipment, which occupies a large space and consumes a lot of energy.

[0044] The electric transmission system provided by the embodiment of the present invention can integrate the functions of the starter and the generator into one, realizing the two functions of starting and generating electricity, so that the mechanical energy generated by the driving shaft is used to drive the load to do work on the one hand, and is converted into electrical energy on the other hand. In terms of energy conversion, the maximum energy recovery and utilization is achieved, saving energy consumption; in terms of mechanical structure design, this electric transmission system with an integrated starter and generator occupies a small space, thereby improving space utilization.

[0045] First, please refer to Figures 1 to 4 ,like Figure 1As shown, the electric transmission system includes an outer shell 1 and a linear motor assembly 2, the linear motor assembly 2 is installed in the outer shell 1, and the linear motor assembly 2 includes a first stator winding 21, a first rotor 22 and a driving shaft 23, wherein the driving shaft 23 is connected to the first rotor 22, specifically, the first rotor 22 is composed of a plurality of magnetic rings, and the adjacent magnetic rings have opposite magnetic properties, and the plurality of magnetic rings are sleeved on the driving shaft 23, when the three-phase alternating current is electrically connected to the first stator winding 21 through the first terminal 41, the first stator winding 21 is energized, and a magnetic field is generated between the first rotor 22, and the driving shaft 23 begins to reciprocate linearly along the outer shell 1 under the action of the magnetic field, it should be pointed out that the driving shaft 23 has two ends, one end of which is connected to the rotating member 31, and the other end can be extended axially out of the outer shell 1, and then can be connected to other loads, such as providing linear drive for the air-conditioning compressor. It should be noted that the terminal block is an accessory product used to achieve electrical connection, and the use of the terminal block can facilitate the connection of wires.

[0046] Furthermore, the other end of the driving shaft 23 is connected to the rotating member 31 in a transmission manner. When the driving shaft 23 moves linearly, it drives the rotating member 31 to rotate. A second rotor 32 is arranged on the rotating member 31, and a second stator winding 33 is arranged on the outer shell 1. When the rotating member 31 drives the second rotor 32 to rotate, it cooperates with the directional magnetic field generated by the second stator winding 33 to generate an induced electromotive force. Furthermore, the materials of the first rotor 22 and the second rotor 32 can be, but are not limited to, permanent magnet materials.

[0047] The electric transmission system provided by the embodiment of the present invention is achieved by connecting one end of the driving shaft 23 of the linear motor assembly 2 to the rotating member 31, and setting a second rotor 32 on the rotating member 31, so that the linear motion of the driving shaft 23 is converted into the rotational motion of the rotating member 31, thereby driving the second rotor 32 to rotate, so that the second rotor 32 and the second stator winding 33 set on the outer shell 1 move relative to each other, thereby generating an induced electromotive force. Therefore, it can be seen that the electric transmission system provided by the embodiment of the present invention uses reasonable mechanical transmission design and electromagnetic design to use the mechanical energy generated by the driving shaft 23 to drive the load to do work on the one hand, and convert it into electrical energy on the other hand. In terms of energy conversion, it realizes the maximum energy recovery and utilization, saving energy consumption; in terms of mechanical structure design, this starter and generator integrated electric transmission system occupies a small space and improves space utilization.

[0048] It should be pointed out that a transmission mechanism is arranged between the driving shaft 23 and the rotating member 31, for example: a gear rack mechanism, in which a rack is arranged or connected at one end of the driving shaft 23, and the gear is used as the rotating member 31 of the electrical transmission system, through which the linear motion of the driving shaft 23 is converted into the rotation of the rotating member 31; for another example, a crank-connecting rod mechanism, in which a crank is slidably arranged on the driving shaft 23, and both ends of the connecting rod are respectively rotated to connect the crank and the rotating member 31, so that when the driving shaft makes a reciprocating linear motion, the crank is driven to make a rotational motion, and then the rotating member 31 is driven to rotate, through which the linear motion of the driving shaft 23 is converted into the rotation of the rotating member 31; and so on. Although it is described here in combination with the gear rack structure and the crank connecting rod structure, this is not a limitation of the present invention. Without departing from the principle of the present invention, those skilled in the art may adopt other structures besides the gear rack mechanism and the crank connecting rod mechanism, as long as it is a mechanical transmission mechanism that converts the linear motion of the driving shaft 23 into the rotation of the rotating member 31. For example, a mechanism combining a cam and a connecting rod to convert linear motion into rotational motion, these structures do not deviate from the principles of the present invention and therefore fall within the scope of protection of the present invention.

[0049] It can be understood that the equipment using the electric transmission system provided by the embodiment of the present invention can integrate the functions of the starter and the generator into one, realizing the two functions of starting and generating electricity, thereby greatly reducing the number of mechanical components of the electrical system, reducing the onboard volume and system weight, and also reducing energy consumption and saving costs.

[0050] In a possible implementation of the present application, the electric transmission system provided by the embodiment of the present invention also includes a driven shaft 5, which is transmission-connected to the rotating member 31, so that the driven shaft 5 can rotate under the drive of the rotating member 31, and then can be connected to other loads. For example, when the driving shaft 23 of the linear motor assembly 2 provides a linear drive for the air-conditioning compressor, the driven shaft can be connected to the external fan to provide drive for the fan to rotate. Realize the maximum recycling of energy. Specifically, with respect to the connection method between the driven shaft 5 and the rotating member 31, the driven shaft 5 can be, but is not limited to, transmission-connected to the rotating member 31 by a key connection.

[0051] In a possible implementation of the present application, a gear rack mechanism is used between the driving shaft 23 and the rotating member 31 to realize the conversion between linear motion and rotational motion. Specifically, a preferred implementation is: a rack 6 is provided at one end of the driving shaft 23, and the rotating member 31 is a gear that cooperates with the rack 6. When the driving shaft 23 performs linear reciprocating motion, the rack 6 on the driving shaft 23 drives the gear to perform rotational motion by meshing with the gear. The structure of directly providing the rack 6 on the driving shaft 23 can save costs and reduce the weight of the entire component; another preferred implementation is: a component having a rack 6 structure is connected to one end of the driving shaft 23, and the rotating member 31 is a gear that cooperates with the rack 6. When the driving shaft 23 performs linear reciprocating motion, the rack 6 drives the gear to perform rotational motion by meshing with the gear. The rack 6 component is provided separately for easy processing and replacement.

[0052] It should be noted that during the reciprocating motion of the driving shaft 23, the rotating member 31 rotates alternately in the clockwise and counterclockwise directions, and an induced electromotive force is generated between the second rotor 32 on the rotating member 31 and the second stator winding 33 provided on the outer shell 1, and an induced current is generated through a reasonable circuit design, and the output AC power can be converted into DC power after being inverted. However, since the rotating member 31 rotates alternately clockwise and counterclockwise, it generates sinusoidal waveforms of equal magnitude and opposite directions, which also causes the inverted DC power to be equal in magnitude and opposite in direction. At this time, it is necessary to add a forward and reverse alternating control circuit to the DC circuit to achieve that when the rotating member 31 rotates forward and reverse, the direction of the current entering the battery can remain unchanged.

[0053] In a possible implementation of the present application, Figure 2 As shown, a crank-connecting rod assembly is used between the driving shaft 23 and the rotating member 31 to realize the conversion between linear motion and rotational motion. Specifically, the crank 91 has a rotating end and a free end. The rotating end of the crank 91 is rotationally connected to the driving shaft 23, the free end of the crank 91 is rotationally connected to the first end of the connecting rod 92, and the second end of the connecting rod 92 is rotationally connected to the rotating member 31. In this way, when the driving shaft 23 performs reciprocating linear motion, the crank 91 drives the connecting rod 92 to rotate, thereby driving the rotating member 31 to rotate, so that the second rotor 32 on the rotating member 31 and the second stator winding 33 generate electromagnetic induction, thereby generating an induced electromotive force, and realizing the conversion of mechanical energy into electrical energy.

[0054] In a possible implementation of the present application, Figure 3As shown, a transmission connecting rod structure is arranged between the driving shaft 23 and the rotating member 31 to realize the conversion between linear motion and rotational motion. Specifically, a track is arranged on the driving shaft 23, and the first end of the transmission connecting rod is slidably arranged in the track, and the second end of the transmission connecting rod is hinged to the rotating member 31. In this way, when the driving shaft 23 makes reciprocating linear motion, the first end of the transmission connecting rod slides along the track, thereby driving the rotating member 31 to rotate, so that the second rotor 32 on the rotating member 31 and the second stator winding 33 generate electromagnetic induction, thereby generating induced electromotive force, and realizing the conversion of mechanical energy into electrical energy.

[0055] In a possible implementation of the present application, a support frame 7 is provided on the outer shell 1. Specifically, Figure 1 and 2 As shown, the support frame 7 is fixedly connected to one side of the outer shell 1, and an axial hole is set on the support frame 7, and the driving shaft 23 can slide along the axial hole; the support frame 7 supports the driving shaft 23, thereby improving the stability of the movement of the linear motor assembly 2.

[0056] In a possible implementation of the present application, Figure 4 As shown, it also includes a circuit board 8 and a second terminal 42, wherein the circuit board 8 is installed in the outer shell 1, the second terminal 42 is arranged on the outer shell 1, the second terminal 42 is electrically connected to the circuit board 8, and the second stator winding 33 is arranged on the circuit board 8. It should be noted that the circuit board 8 is fixedly installed in the outer shell, so that when the rotating member 31 drives the second rotor 32 to rotate, the second rotor 32 and the second stator winding 33 arranged on the circuit board 8 move relative to each other, thereby generating an induced electromotive force. Further, a reasonable conversion circuit is arranged on the circuit board 8, and the converted electric energy can be collected through the second terminal 42. For example, the second terminal 42 can be connected to an external battery or other electric energy storage device to store the collected electric energy for use by other devices. The structure of directly setting the second stator winding 33 on the circuit board 8 maximizes the use of components to realize the function of the electric transmission system. Its structure is simple, which helps to reduce the weight of the entire device and is also easier to realize the conversion and collection of electric energy.

[0057] In a preferred embodiment, the circuit board 8 is a PCB board, and the rotating component 31 provided with the second rotor 32 and the PCB board constitute a PCB disc motor structure, the rotating component 31 is equivalent to the rotor part of the PCB disc motor, the second stator winding 33 is equivalent to the PCB stator winding, and the second rotor 32 realizes forward and reverse rotation under the action of the driving shaft 23, and acts on the stator windings at both ends. The copper wire in the winding cuts the magnetic flux lines to generate currents of equal magnitude and opposite directions, and the generated current is rectified. Further, the rectified direct current can be input through the second terminal 42 and stored in the battery, and the energy stored in the battery can be used to power other devices. In the embodiment of the present invention, the circuit board 8 adopts a PCB board, and constitutes a PCB disc motor structure with the rotating component 31 provided in this embodiment, which is equivalent to the generator part of the electrical system. It has a simple and compact structure, a small size, and a light weight. While realizing its power generation function, it can greatly reduce the weight of the entire device.

[0058] In another possible implementation, the embodiment of the present invention can also operate in reverse, that is, the PCB disc motor structure serves as the driving machine (starting motor), and the linear motor assembly serves as a generator. Specifically, the circuit board 8 is a PCB board, and the rotating component 31 provided with the second rotor 32 and the PCB board constitute a PCB disc motor structure. When three-phase alternating current is connected to one end of the circuit board 8, the PCB disc motor structure operates as the driving machine (starting motor). At this time, the speed of the PCB disc motor structure can be controlled by the controller. Under the action of the three-phase alternating current, the second stator winding 33 of the PCB disc motor structure generates an alternating magnetic field, and the rotating component 31 starts to rotate under the action of the alternating magnetic field, and can drive the driven shaft 5 to rotate. At the same time, the transmission mechanism can also be used to drive the driven shaft 5 to rotate. The driving shaft 23 is driven to make reciprocating linear motion, and the rotational motion of the rotating member 31 is changed into the linear motion of the driving shaft 23. Since the driving shaft 23 is provided with a first rotor 22, and the shell is provided with a first stator winding 21, the first rotor 22 makes reciprocating linear motion driven by the driving shaft 23, and the magnetic field generated by it acts on the first stator winding 21. The first terminal is connected to the electrical equipment to form a closed loop, and current will be generated. At the same time, the driving shaft 23 can also be connected to other loads in working conditions that require linear reciprocating motion, such as the compressor of an air conditioner, to provide linear reciprocating motion for it.

[0059] In a possible implementation of the present application, an energy storage module is also included, which is electrically connected to the second terminal 42 and is used to collect and store the electric energy generated by the induced current for use by other devices. For example, when the electric drive system is applied to an air conditioner, the electric energy converted from the system can be used to provide electric energy for the controller, driver and other devices of the air conditioner system. The energy storage module can be, but is not limited to, a battery.

[0060] The embodiment of the present invention further provides an air conditioner outdoor unit, including a compressor and the electrical transmission system as described above, wherein the compressor includes a drive shaft, and the driving shaft 23 is in driving connection with the drive shaft. In this way, the linear motor assembly 2 can provide linear motion for the air conditioner compressor during use. For example, the driving shaft 23 is extended, which can increase the pressure of the gas in the compressor, reduce the volume, and convert the low-pressure gas into high-pressure gas; the driving shaft 23 is retracted, which can reduce the pressure of the gas in the compressor, increase the volume, and convert the high-pressure gas into low-pressure gas; the linear motor assembly 2 converts electrical energy into mechanical energy to achieve the conversion of the gas pressure in the compressor.

[0061] In a possible implementation of the present application, the driven shaft 5 can be extended, and an air-conditioning fan, or an air-conditioning blowing fan, is connected to the output end of the driven shaft 5. After reasonable electromagnetic design, its blowing function can be realized, which saves space and is beneficial to energy utilization. It should be noted that in the case of forward and reverse rotation of the rotating member 31, in a preferred embodiment, under the action of the controller, when the rotating member 31 rotates clockwise, the air-conditioning fan blows air, and when it rotates counterclockwise, the air-conditioning fan is turned off. Of course, it can also be set according to demand that when it rotates clockwise, the air-conditioning fan inhales air, and when it rotates counterclockwise, the air-conditioning fan is turned off, so as to realize unidirectional heat dissipation of the fan.

[0062] Furthermore, the conventional air-conditioning compressor motor and air-conditioning fan motor generally require two wiring terminals because each is equipped with an independent power supply device. The air-conditioning outdoor unit provided in this embodiment can realize the integration of the starter and the generator, so the power supply demand can be met by using a first wiring terminal 41. This not only avoids electromagnetic interference between electromagnetic equipment components, but also saves power supply equipment components and the space they occupy.

[0063] The embodiment of the present invention also provides an air conditioning system, including the air conditioning outdoor unit as described above. Since the air conditioning outdoor unit has the above technical effects, the air conditioning system including the air conditioning outdoor unit also has the above technical effects, which will not be described in detail herein. However, it should be pointed out that the electric energy stored in the electric energy storage module in the electric drive system can be used to power some components of the air conditioning system, such as the controller, etc., thereby improving the utilization rate of electric energy.

[0064] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An electric transmission system, characterized in that: include: outer shell; A linear motor assembly is disposed in the outer shell, the linear motor assembly comprises a first stator winding, a first rotor and a driving shaft, and the driving shaft is connected to the first rotor; A rotating member, wherein the rotating member is in driving connection with the driving shaft, and the driving shaft drives the rotating member to rotate when the driving shaft moves linearly; a second rotor is arranged on the rotating member, and a second stator winding is arranged on the outer shell, and when the rotating member drives the second rotor to rotate, the rotating member cooperates with the directional magnetic field generated by the second stator winding to generate an induced electromotive force; The first terminal is arranged on the outer shell, and the first terminal is electrically connected to the first stator winding.

2. The electric drive system according to claim 1, characterized in that: Also includes: The driven shaft is in transmission connection with the rotary member and can rotate driven by the rotary member.

3. The electric drive system according to claim 1, characterized in that: The driving shaft is provided with a rack, and the rotating member is a gear that cooperates with the rack in transmission.

4. The electric drive system according to claim 1, characterized in that: Also includes: A crank-connecting rod assembly, wherein the crank has a rotating end and a free end, the rotating end of the crank is connected to the driving shaft, the free end of the crank is rotationally connected to the first end of the connecting rod, and the second end of the connecting rod is rotationally connected to the rotating member.

5. The electric drive system according to claim 1, characterized in that: Also includes: A support frame is arranged on the outer shell and is used to support the linear motor assembly.

6. The electric drive system according to any one of claims 1 to 5, characterized in that: Also includes: A circuit board, which is arranged in the outer shell, and the second stator winding is arranged on the circuit board; The second connecting terminal is arranged on the outer shell, and the second connecting terminal is electrically connected to the circuit board.

7. The electric drive system according to claim 6, characterized in that: Also includes: An electric energy storage module is electrically connected to the second wiring terminal and is used to store the electric energy generated by the induced current.

8. An air conditioner outdoor unit, characterized in that: include: a compressor including a drive shaft; The electric transmission system according to any one of claims 1 to 7, wherein the driving shaft is drivingly connected to the drive shaft.

9. The air conditioner outdoor unit according to claim 8, characterized in that: The electric transmission system further comprises: A driven shaft is connected to the rotary member in a transmission manner and can rotate under the drive of the rotary member; the air conditioner outdoor unit also includes: A fan is drivingly connected to the output end of the driven shaft.

10. An air conditioning system, characterized in that: include: The air conditioner outdoor unit as claimed in claim 8 or 9.

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