A dual-stator single-rotor motor

Abstract

The utility model discloses a kind of double-stator single-rotor motor, including first shell, second shell, two stators, rotor, the second shell is connected with first shell upside-down;The motor is set by first shell and second shell, utilizes the first installation chamber formed by first shell, the second installation chamber formed by second shell, realize built-in two stators, one rotor, and make rotor between two stators, cooperatively set rotating shaft, make two stators jointly drive one rotor rotation, to drive rotating shaft rotation, compared with traditional motor, the motor overall occupies smaller space, and utilize two stators to drive rotor rotation, the power generated is larger than traditional motor, overall weight is lower, overall structure is practical and reliable.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a dual-stator single-rotor motor. Background Technology

[0002] An electric motor is a device that converts electrical energy into mechanical energy. It utilizes a rotating magnetic field generated by a current-carrying coil to act on a rotor, creating magnetoelectric torque. It mainly consists of a stator and a rotor. The direction of the force on a current-carrying conductor in a magnetic field depends on the direction of the current and the direction of the magnetic field lines. Traditional motors typically have a relatively large stator, with the rotor shaft housed within it, thus enabling the stator to drive the rotor and achieve the motor function. However, such motors occupy a large space and are quite heavy. Publication number CN219107250U discloses an electric motor including a stator, a rotor, and a connector. The stator includes a housing, a stator core housed within the housing, and stator windings wound around the stator core. The connector includes an insulating base connected to an open end of the housing, and conductive terminals supported by the insulating base. The motor also includes a busbar unit, comprising an insulating retainer and a busbar supported by the insulating retainer. The insulating retainer is axially located between the stator core and the insulating base of the connector. A first end of the busbar is electrically connected to the output terminal of the stator winding, and a second end of the busbar passes axially through the insulating base of the connector and is electrically connected to a first end of a conductive terminal. The second end of the conductive terminal is used for connection to an external power source. This motor is a single-rotor, single-stator type, and occupies a large overall space. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a practical, reliable, and space-saving dual-stator single-rotor motor.

[0004] To achieve the above objectives, the present invention provides the following solution: a dual-stator single-rotor motor, comprising a first housing, a second housing, two stators, and a rotor. The second housing is vertically connected to the first housing. A first mounting chamber extending upward through the first housing is formed inside the first housing. A second mounting chamber extending downward through the second housing is formed inside the second housing. The first mounting chamber communicates upward with the second mounting chamber. A rotating shaft is rotatably connected inside the first mounting chamber. The rotating shaft passes through the second mounting chamber and extends out of the second housing. One stator is disposed inside the first mounting chamber, and another stator is disposed inside the second mounting chamber. The two stators are vertically spaced apart. The rotor is located between the two stators, and the rotor is mounted on the rotating shaft.

[0005] The beneficial effects of this utility model are as follows: it occupies less space overall. By setting a first outer shell and a second outer shell, and utilizing the first mounting chamber formed by the first outer shell and the second mounting chamber formed by the second outer shell, it realizes the internal installation of two stators and one rotor, with the rotor located between the two stators. With the cooperation of the set rotating shaft, the two stators jointly drive the rotor to rotate, thereby driving the rotating shaft to rotate. Compared with traditional motors, this motor occupies less space overall, and by using two stators to drive the rotor to rotate, it generates more power than traditional motors. It also has a lower overall weight, and the overall structure is practical and reliable.

[0006] Furthermore, the first outer shell and the second outer shell are connected by bolts. With the above structure, this invention achieves a detachable connection between the first outer shell and the second outer shell.

[0007] Furthermore, the first outer casing is detachably connected to and fixed to a stator via bolts, and the second outer casing is detachably connected to and fixed to another stator via bolts. With the above structure, this invention achieves stator fixation.

[0008] Furthermore, a first mounting groove is provided at the bottom of the first housing, and a rear end cover is installed on the first mounting groove.

[0009] Furthermore, a rotating sleeve is formed at the center of the bottom of the first outer casing, and the rotating shaft is rotatably connected inside the rotating sleeve.

[0010] Furthermore, a second mounting groove is provided on the top of the second housing, and a front end cover is mounted on the second mounting groove.

[0011] Furthermore, a protective sleeve is fitted onto the outer wall of the rotor. With the above structure, this invention effectively protects the outer periphery of the rotor during rotation, reducing rotor wear.

[0012] Furthermore, a bottom cover is provided at the bottom of the rotating sleeve, which is used to restrict the rotating shaft from exiting the rotating sleeve downwards. With the above structure, this utility model achieves the goal of restricting the rotating shaft from exiting the rotating sleeve downwards.

[0013] Furthermore, the sidewalls of the first and second housings together form a mounting opening, which is connected to a terminal block. The terminal block contains wiring terminals that are respectively connected to the two stators. With the above structure, this invention enables power to be supplied to both stators. Attached Figure Description

[0014] Figure 1 The overall three-dimensional structure of this utility model Figure 1 .

[0015] Figure 2 The overall three-dimensional structure of this utility model Figure 2 .

[0016] Figure 3 For the breakdown of this utility model Figure 1 .

[0017] Figure 4 For the breakdown of this utility model Figure 2 .

[0018] Wherein, 11 is the first outer shell, 111 is the first mounting chamber, 112 is the first mounting groove, 113 is the rotating sleeve, 114 is the bottom cover, 12 is the second outer shell, 121 is the second mounting chamber, 122 is the second mounting groove, 13 is the mounting port, 14 is the rotating shaft, 15 is the outlet box, 151 is the terminal block, 3 is the stator, 4 is the rotor, 41 is the sheath, 5 is the front cover, and 6 is the rear cover. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] See appendix Figure 1 To be continued Figure 4 As shown, a dual-stator single-rotor motor includes a first housing 11, a second housing 12, two stators 3, and a rotor 4. The second housing 12 is vertically connected to the first housing 11. A first mounting chamber 111 is formed inside the first housing 11, extending upward through the first housing 11. A second mounting chamber 121 is formed inside the second housing 12, extending downward through the second housing 12. The first mounting chamber 111 is connected upward to the second mounting chamber 121. A rotating shaft 14 is rotatably connected inside the first mounting chamber 111. The rotating shaft 14 passes through the second mounting chamber 121 and extends out of the second housing 12. One stator 3 is disposed inside the first mounting chamber 111, and another stator 3 is disposed inside the second mounting chamber 121. The two stators 3 are arranged vertically at intervals. The rotor 4 is located between the two stators 3, and the rotor 4 is mounted on the rotating shaft 14.

[0022] In this embodiment, after the first mounting chamber 111 and the second mounting chamber 121 are connected, a space is left between the two stators 3 for the rotor 4 to be installed and rotated.

[0023] In this embodiment, the first housing 11 and the second housing 12 are connected by bolts. At the same time, the first mounting chamber 111 of the first housing 11 is filled with potting compound, which is used to fill the groove of the stator 3. The second mounting chamber 121 of the second housing 12 is filled with potting compound, which is used to fill the groove of the stator 3. In this way, the stator 3 can also be fixed.

[0024] In this embodiment, the first outer shell 11 is detachably connected to and fixed to a stator 3 by bolts, and the second outer shell 12 is detachably connected to and fixed to another stator 3 by bolts.

[0025] In this embodiment, a first mounting groove 112 is provided at the bottom of the first outer shell 11, and a rear end cover 6 is installed on the first mounting groove 112.

[0026] In this embodiment, a rotating sleeve 113 is formed at the center of the bottom of the first outer shell 11, and a rotating shaft 14 is rotatably connected to the rotating sleeve 113; a bottom cover 114 is provided at the bottom of the rotating sleeve 113, and the bottom cover 114 is used to restrict the rotating shaft 14 from exiting the rotating sleeve 113 downward.

[0027] In this embodiment, a second mounting groove 122 is provided on the top of the second outer shell 12, and a front end cover 5 is installed on the second mounting groove 122.

[0028] In this embodiment, a protective sleeve 41 is fitted onto the outer wall of the rotor 4.

[0029] In this embodiment, the sidewall of the first housing 11 and the sidewall of the second housing 12 together form an installation port 13. The installation port 13 is connected to a terminal box 15. The terminal box 15 is provided with a wiring terminal 151, which is connected to the two stators 3 respectively.

[0030] In this embodiment, the specific assembly process is as follows: First, the rotating shaft 14 is installed on the rotating sleeve 113 of the first housing 11. Then, the bottom cover 114 is installed at the bottom of the rotating sleeve 113 and the bolts are tightened. Next, the stator 3 is placed in the first mounting chamber 111 and the rotating shaft 14 passes through the stator 3 in the first mounting chamber 111. Finally, potting compound is filled into the first mounting chamber 111 so that the potting compound fills the groove of the stator 3. With the bolts on the first housing 11, the stator 3 in the first mounting chamber 111 is fixed.

[0031] Simultaneously, another stator 3 is placed in the second mounting chamber 121 of the second housing 12, and then potting compound is filled into the second mounting chamber 121 so that the potting compound fills the groove of the stator 3. With the help of the bolts on the second housing 11, the stator 3 in the second mounting chamber 121 is fixed.

[0032] At this point, the rotor 4 with the protective sleeve 41 is fitted onto the rotating shaft 14. Then, the second outer shell 12 is aligned with the first outer shell 11 and fixed by bolts, so that the rotor 4 is positioned between the two stators and the end of the rotating shaft 14 extends out of the second outer shell 12. The terminal box 15 with the wiring terminal 151 is then connected to the mounting port 13. Finally, the rear end cover 6 is installed in the first mounting slot 112 and the front end cover 5 is installed in the second mounting slot 122, thus completing the motor assembly of this embodiment.

[0033] In this embodiment, a gearbox or similar device can be installed on the top surface of the second housing 12, so that the rotating shaft 14 can be connected to the gearbox or other components, and the motor of this embodiment can drive the gearbox or other components to rotate through the rotating shaft 14 to realize the motor function.

[0034] In this embodiment, two stators 3 and one rotor 4 can be built in through the first outer shell 11 and the second outer shell 12. Compared with the traditional motor, the motor in this embodiment occupies less space. When working, the terminal 151 energizes the two stators 3, so that the two stators 3 generate induced electromotive force to drive the rotor 4 to rotate together, thus achieving higher power than the traditional motor.

[0035] Serial Number Project Name Testing standards require Test results Remark 1 No-load test The controller operates in speed mode, controlling the motor to run at no-load up to 2100 rpm and 3000 rpm, recording the line voltage and phase current output by the controller. rotational speed Voltage Current rpmVrmsArms 2100 300 2 Load testing The controller torque model was run, with the test motor driving the motor under test to 2100 rpm and 3000 rpm. The controller was then loaded to rated and peak operating conditions, and the line voltage and phase current output by the controller were recorded respectively. rotational speed Torque power Voltage Current motor efficiency 2100 160 35 320 70 3000 111.4 35 222.8 70

[0036] The above are the motor control and load test data of this embodiment. Compared with the traditional method, the motor speed, power and torque of this embodiment are greater.

[0037] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Any person skilled in the art can make more possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, all equivalent changes made based on the concept of this utility model without departing from the content of the technical solution of this utility model should be covered within the protection scope of this utility model.

Claims

1. A double-stator single-rotor electric machine comprising a first housing (11), a second housing (12), two stators (3), a rotor (4), characterized in that: The second outer shell (12) is vertically connected to the first outer shell (11). The first outer shell (11) has a first mounting chamber (111) that extends upward through the first outer shell (11). The second outer shell (12) has a second mounting chamber (121) that extends downward through the second outer shell (12). The first mounting chamber (111) is connected upward to the second mounting chamber (121). A rotating shaft (14) is rotatably connected inside the first mounting chamber (111). The rotating shaft (14) passes through the second mounting chamber (121) and extends out of the second outer shell (12). A stator (3) is provided inside the first mounting chamber (111). Another stator (3) is provided inside the second mounting chamber (121). The two stators (3) are arranged vertically at intervals. The rotor (4) is located between the two stators (3). The rotor (4) is fitted on the rotating shaft (14). A protective sleeve (41) is fitted on the outer wall of the rotor (4). The side wall of the first housing (11) and the side wall of the second housing (12) together form an installation port (13), the installation port (13) is connected to a terminal box (15), the terminal box (15) is provided with a wiring terminal (151), and the wiring terminal (151) is connected to two stators (3) respectively.

2. A dual stator single rotor electric machine according to claim 1, characterized in that: The first outer shell (11) and the second outer shell (12) are connected by bolts.

3. The dual stator single rotor electric machine of claim 1, wherein: The first housing (11) is detachably connected to and fixed to a stator (3) by bolts, and the second housing (12) is detachably connected to and fixed to another stator (3) by bolts.

4. The dual stator single rotor electric machine of claim 1, wherein: The first housing (11) has a first mounting groove (112) at the bottom, and a rear end cover (6) is installed on the first mounting groove (112).

5. The dual stator single rotor electric machine of claim 1, wherein: A rotating sleeve (113) is formed at the center of the bottom of the first outer shell (11), and the rotating shaft (14) is rotatably connected inside the rotating sleeve (113).

6. A dual stator single rotor electric machine according to claim 5, characterized in that: The bottom of the rotating sleeve (113) is provided with a bottom cover (114), which is used to restrict the rotating shaft (14) from exiting the rotating sleeve (113) downward.

7. The dual stator single rotor electric machine of claim 1, wherein: The second outer shell (12) has a second mounting groove (122) on its top, and a front end cover (5) is installed on the second mounting groove (122).

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