Multipurpose DC motor

Abstract

The utility model relates to the technical field of motors, in particular to a multipurpose DC motor which comprises a driving part, a connecting part and a control part, the driving part is used for installing a rotor and a stator of the motor to achieve output driving of the motor, and the driving part is connected with the control part through the connecting part. And a conversion part electrically connected with the driving part is arranged in the control part, so that input alternating current is converted into direct current through the conversion part, and the direct current is output to the driving part. According to the invention, the application range of the existing DC motor can be effectively widened.

Description

Technical Field

[0001] The present application relates to the technical field of motors, and in particular to a multi-purpose DC motor. Background Art

[0002] DC motor is a kind of electric motor driven by direct current power. The working principle of DC motor is based on electromagnetic induction. It generates a magnetic field in the stator, which interacts with the magnetic field on the rotor to generate torque and rotate the rotor. DC motor has the advantages of simple structure, large starting torque and high efficiency. It is now widely used in various industrial equipment, electric vehicles, household appliances and other fields.

[0003] However, since the existing DC motor itself does not have the rectifier structure of the power board, it is unable to directly input AC power. As a result, when it is installed in large electromechanical equipment such as outdoor air-conditioning units, additional power modules and control modules are required to pre-rectify and transform the AC power, which affects the application scope of the existing DC motor. Utility Model Content

[0004] In order to effectively broaden the application scope of existing DC motors, the present application provides a multi-purpose DC motor.

[0005] The present application provides a multi-purpose DC motor adopting the following technical solution:

[0006] A multi-purpose DC motor comprises: a driving part, a connecting part and a control part, wherein the driving part is used to install the rotor and stator of the motor to realize the output drive of the motor, the driving part is connected to the control part through the connecting part, and a conversion part electrically connected to the driving part is arranged in the control part, so as to convert the input alternating current into direct current through the conversion part and output it to the driving part.

[0007] By adopting the above technical solution, the driving part can drive the internal power of the motor by connecting to an external DC power supply, and output the DC to the external slave device through the driving part. In addition, when it needs to be installed on a large outdoor slave device and directly connected to an external AC power supply, the control part can be connected to the driving part through the connecting part, and directly electrically connected to the external AC power supply through the conversion part, so that the AC power is converted by the conversion part and directly output electrically to the driving part, and then outputted to the large outdoor slave device through the driving part. Compared with the existing DC motor, the present application can flexibly change its own structure according to the form of input current, so as to achieve the purpose of being applied to multiple different scene devices.

[0008] Optionally, the driving part includes: a mounting member and a starting member, the mounting member is used to connect to an external device, and the starting member is arranged inside the mounting member and is electrically connected to the conversion part to drive the stator and rotor of the motor for output through the starting member.

[0009] By adopting the above technical solution, the mounting part can facilitate the connection between the motor as a whole and the external driven device, and the starting part can further transmit the DC power converted and transmitted by the conversion part to the stator and rotor inside the motor to realize the starting output of the motor.

[0010] Optionally, the connecting part includes: a docking piece and a first extension piece, the docking piece is arranged on the starting piece and is used to connect with the control part, and the first extension piece is arranged on a side of the mounting piece away from the motor output shaft to connect the control part to the first extension piece.

[0011] By adopting the above technical solution, the first extension piece can be connected to the side wall of the control part to achieve the purpose of quick assembly of the control part and the mounting part, and the docking piece can be connected to the inside of the control part to further improve the assembly stability of the control part on the side of the mounting part.

[0012] Optionally, the control part includes: a protective member and a second extension member, the conversion part is arranged inside the protective member so as to protect the conversion part by the protective member, and the second extension member is arranged on one side of the protective member and connected to the first extension member.

[0013] By adopting the above technical solution, the protective member can protect the conversion part, improve the service life and working stability of the conversion part, and the second extension member can be connected and cooperated with the first extension member, so that the protective member and the mounting member can be stably connected.

[0014] Optionally, the control part further includes: a locking piece, which is arranged on the protective piece and connected to the docking piece, so that the overall positioning and installation of the control part can be achieved through the cooperation between the locking piece and the docking piece.

[0015] By adopting the above technical solution, the locking member can be connected and cooperated with the docking member, so as to further improve the stability of the control unit as a whole when connected to the connecting part of the driving unit, so as to facilitate the subsequent stable output of the motor.

[0016] Optionally, the conversion part includes: a limiter and a power rectifier, both of which are arranged inside the protective part, and the limiter can limit the position of the power rectifier.

[0017] By adopting the above technical solution, the limiter can assist in positioning the power rectifier inside the protective component, and the power rectifier can rectify and convert the external alternating current and transmit the converted direct current to the starting component to facilitate subsequent output of the motor.

[0018] Optionally, a first wire hole is provided on the first extension member, and the first wire hole is used to lead out the wires of the starter and connect them to an external power source.

[0019] By adopting the above technical solution, the first wire hole can lead the wires of the starter from the inside of the mounting member to be electrically connected to an external DC power supply, so that external DC power can be directly input into the starter, and the stator and rotor inside the motor can be driven through the starter to output.

[0020] Optionally, a second wire hole is provided on the side wall of the protective member, and the second wire hole is used to lead out the wires of the power rectifier and connect them to an external power source.

[0021] By adopting the above technical solution, the second wire hole can lead the wires of the power rectifier out from the inside of the protective component and electrically connect it to the external power supply, so that the alternating current can be input into the power rectifier through the external power supply for current conversion, and the converted current can be further transmitted to the starting component through the power rectifier for subsequent output.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The driving part can be connected to an external DC power supply to drive the internal power supply of the motor, and the DC output is sent to the external slave device through the driving part. In addition, when it is necessary to be installed on a large outdoor slave device and directly connected to an external AC power supply, the control part can be connected to the driving part through the connecting part, and the external AC power supply can be directly connected to the external AC power supply through the conversion part, so that the AC power can be converted by the conversion part and directly output to the driving part, and then the DC output is sent to the large outdoor slave device through the driving part. Compared with the existing DC motor, the present application can flexibly change its structure according to the form of input current, so as to achieve the purpose of being applied to multiple different scene devices;

[0024] 2. The limiting part can assist in positioning the power rectifier inside the protective part, and the power rectifier can rectify and convert the external alternating current and transmit the converted direct current to the starting part to facilitate the subsequent output of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of a multi-purpose DC motor according to an embodiment of the present application;

[0026] Figure 2 It is a partial structural diagram of the control unit of the embodiment of the present application;

[0027] Figure 3 It is a partial structural schematic diagram of the driving part and the connecting part of the embodiment of the present application;

[0028] Figure 4 It is a schematic diagram of the structure of the rear cover plate of the embodiment of the present application.

[0029] Explanation of the reference numerals: 1. driving part; 11. mounting part; 111. housing; 112. mounting foot; 12. starting part; 121. rear cover; 121a. positioning hole; 121b. second fitting groove; 122. wiring terminal; 123. first annular strip; 123a. first fitting groove; 2. connecting part; 21. docking part; 22. first extension part; 221. first wire hole; 222. inner convex edge; 223. outer convex edge; 3. control part; 31. protective part; 311. second wire hole; 312. groove; 313. locking hole; 32. second extension part; 321. second annular strip; 321a. annular groove; 33. locking part; 4. conversion part; 41. limiting part. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-4 This application is described in further detail. Example

[0031] The present application embodiment discloses a multi-purpose DC motor. Figure 1-2 The multi-purpose DC motor includes a driving part 1, a connecting part 2 and a control part 3. The rotor and stator of the motor are installed inside the driving part 1, and the side of the driving part 1 away from the motor output shaft is connected to the control part 3 through the connecting part 2. At the same time, in order to facilitate the direct input of external AC power into the driving part 1 to drive the motor, a conversion part 4 is provided inside the control part 3.

[0032] When in use, the control part 3 is installed on the connecting part 2 of the driving part 1, and the conversion part 4 is electrically connected to the driving part 1. Then the driving part 1 is installed inside the external driven device, and the motor output shaft on one side of the driving part 1 is assembled with the input end of the part to be driven inside the external driven device. Then the external AC power supply is electrically connected to the conversion part, so that the external AC power can be directly transmitted to the driving part 1 after conversion by the conversion part 4, so as to further drive the stator and rotor of the motor through the driving part 1 to output, thereby achieving the purpose of driving the part to be driven.

[0033] Reference Figure 1-3In this embodiment, the driving part 1 includes a mounting member 11 and a starter 12. The stator and rotor of the motor are arranged inside the mounting member 11, and the outside of the mounting member 11 can be connected to external equipment, while the starter 12 is installed inside the mounting member 11 and is electrically connected to the stator and the rotor.

[0034] In this embodiment, the mounting member 11 includes a stator housing 111 and mounting feet 112. Among them, there are four mounting feet 112, which are evenly distributed on the outer wall of the housing 111, and the stator and rotor of the motor are installed inside the housing 111. At the same time, in this embodiment, the starter 12 includes a driving circuit board and a rear cover plate 121. The driving circuit board is installed on the inner side of the housing 111 and is electrically connected to the stator and rotor through the wiring terminal 122, and the rear cover plate 121 is tightly installed on the edge of the connecting part 2.

[0035] Reference Figure 1 and 3 -4, in this embodiment, the connecting part 2 includes a docking member 21 and a first extension member 22. Two positioning holes 121a are provided on the rear cover 121, and two docking members 21 are provided, and the two docking members 21 are respectively installed in the two positioning holes 121a. At the same time, the first extension member 22 is arranged around the edge of the back of the housing 111.

[0036] In addition, in this embodiment, the first extension member 22 includes an inner convex edge 222 and an outer convex edge 223. The outer convex edge 223 is connected to the edge of the housing 111 through the inner convex edge 222, and the diameter of the outer convex edge 223 is smaller than the diameter of the inner convex edge 222. At the same time, a first annular strip 123 is provided at the edge of the rear cover 121, and a first engaging groove 123a is provided on the side of the first annular strip 123 close to the housing 111 to abut against the outer convex edge 223. In addition, in order to facilitate the electrical connection of the wires of the driving circuit board with the external power supply or the conversion unit 4, a first wire hole 221 is provided on the side wall of the inner convex edge 222.

[0037] During installation, the engaging groove of the rear cover 121 can be aligned with the outer convex edge 223, so that the outer convex edge 223 can be slid into the engaging groove and pressed against the groove wall, thereby realizing convenient installation of the rear cover 121. At the same time, the wires of the driving circuit board are led out from the first wire hole 221 to facilitate subsequent electrical connection with an external power supply or the conversion unit 4.

[0038] Reference Figure 1-3 In this embodiment, the control part 3 includes a protective member 31 and a second extension member 32. The conversion part 4 is entirely disposed inside the protective member 31, and the second extension member 32 is disposed around one side edge of the protective member 31 and connected to the outer wall of the rear cover plate 121.

[0039] In this embodiment, the protective member 31 is a rear shell, and the second extension member 32 includes a second annular strip 321, and an annular groove 321a is provided on the side wall of the second annular strip 321 away from the rear shell. In order to facilitate the assembly of the rear shell, a second mating groove 121b is provided at the edge of the side of the rear cover plate 121 away from the outer shell 111.

[0040] During installation, align the first annular strip 123 of the rear cover 121 with the annular groove 321a on one side of the second annular strip 321, and splice and press them against each other. At this time, the edge of the rear shell can be pressed against the outer wall of the second annular strip 321 of the rear cover 121 through the inner wall of the second annular strip 321, thereby realizing quick assembly between the rear shell and the rear cover 121.

[0041] In addition, refer to Figure 2-4 In order to effectively improve the connection stability between the rear housing and the rear cover plate 121, in this embodiment, the control unit 3 further includes a locking member 33. Two locking holes 313 are symmetrically provided on the rear housing, and two locking members 33 are provided. The two locking members 33 are respectively installed in the two locking holes 313 and are respectively connected to the two docking members 21 on the rear cover plate 121. In this embodiment, the locking member 33 can be a bolt.

[0042] In this embodiment, the docking member 21 includes a threaded bar and a base. The threaded bar is installed in the corresponding positioning hole 121a, and the base is arranged at one end of the threaded bar and abuts against the side wall of the rear cover 121 close to the housing 111. In addition, in order to facilitate the connection between the locking member and the threaded bar, two grooves 312 are symmetrically provided on the side wall of the rear housing corresponding to the locking member.

[0043] During installation, the two locking pieces 33 are respectively passed through the two locking holes 313, and then after the assembly between the rear shell and the rear cover plate 121 is completed, the two locking pieces 33 are respectively threadedly connected to the two threaded strips, thereby achieving the purpose of further improving the assembly stability between the rear shell and the rear cover plate 121.

[0044] Reference Figure 1-3 In this embodiment, the conversion part 4 includes a limiter 41 and a power rectifier. Among them, two limiters 41 are provided, and the two limiters 41 are symmetrically arranged inside the rear shell. The power rectifier is fitted on the inner bottom wall of the rear shell, and at the same time, the two sides of the power rectifier are respectively pressed by the two limiters 41 to achieve the purpose of positioning and installation. In this embodiment, the power rectifier is a power rectifier circuit board, and one side of the power rectifier circuit board is connected and positioned with the inner bottom wall of the rear shell by electronic glue.

[0045] In addition, in order to facilitate the wires of the power rectifier to be led out, a second wire hole 311 is provided on the side wall of the rear housing. During installation, the wires of the power rectifier can be led out from the second wire hole 311 and electrically connected to the wires of the driving circuit board and the external power supply respectively.

[0046] Working principle: During installation, first install and connect the driver circuit board to the stator terminal 122, then press the rear cover 121 against the outer convex edge 223 of the housing 111, and then fit the power rectifier to the inner bottom wall of the rear housing, and press and position it against the stoppers 41 on both sides;

[0047] Secondly, align the annular groove 321a on the second annular strip 321 of the rear housing with the first annular strip 123 on the rear cover plate 121, assemble the rear housing on the outer side of the rear cover plate 121, and lock it with the threaded strip through the locking piece 33;

[0048] Then, the multi-purpose DC motor of the present application is installed in external equipment through four mounting feet 112, and finally, the wires of the driving circuit board are led out from the first wire hole 221, and then the wires of the power rectifier are led out from the second wire hole 311 and electrically connected to the wires of the driving circuit board and the external AC power supply respectively, so as to achieve the purpose of driving the DC motor to output DC by directly inputting AC power, which is conducive to broadening the application scope of existing DC motors and has great economic benefits.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-purpose DC motor, characterized in that: include: A drive unit (1), a connection unit (2) and a control unit (3), wherein the drive unit (1) is used to mount a rotor and a stator of a motor to realize output drive of the motor, the drive unit (1) is connected to the control unit (3) via the connection unit (2), and a conversion unit (4) is provided in the control unit (3) and is electrically connected to the drive unit (1), so that input alternating current (AC) is converted into direct current (DC) via the conversion unit (4) and the DC is output to the drive unit (1).

2. A multi-purpose DC motor according to claim 1, characterized in that: The driving part (1) comprises: a mounting part (11) and a starting part (12); the mounting part (11) is used to connect to an external device; the starting part (12) is arranged inside the mounting part (11) and is electrically connected to the conversion part (4) so ​​as to drive the stator and rotor of the motor to produce output through the starting part (12).

3. A multi-purpose DC motor according to claim 2, characterized in that: The connecting part (2) comprises: a docking piece (21) and a first extension piece (22); the docking piece (21) is arranged on the starting piece (12) and is used to connect with the control part (3); the first extension piece (22) is arranged on a side of the mounting piece (11) away from the motor output shaft, so as to connect the control part (3) to the first extension piece (22).

4. A multi-purpose DC motor according to claim 3, characterized in that: The control part (3) comprises: a protective member (31) and a second extension member (32); the conversion part (4) is arranged inside the protective member (31) so as to protect the conversion part through the protective member (31); and the second extension member (32) is arranged on one side of the protective member (31) and connected to the first extension member (22).

5. A multi-purpose DC motor according to claim 4, characterized in that: The control part (3) further comprises: a locking member (33), wherein the locking member (33) is arranged on the protective member (31) and connected to the docking member (21), so that the entire control part (3) can be positioned and installed through the cooperation between the locking member (33) and the docking member (21).

6. A multi-purpose DC motor according to any one of claims 4-5, characterized in that: The conversion part (4) comprises: a limiter (41) and a power rectifier (42); the limiter (41) and the power rectifier (42) are both arranged inside the protective part (31); and the limiter (41) can limit the position of the power rectifier (42).

7. A multi-purpose DC motor according to claim 3, characterized in that: The first extension piece (22) is provided with a first wire hole (221), and the first wire hole (221) is used to lead out the wires of the starter (12) and connect them to an external power source.

8. A multi-purpose DC motor according to claim 6, characterized in that: A second wire hole (311) is provided on the side wall of the protection component (31), and the second wire hole (311) is used to lead out the wires of the power rectifier component (42) and connect them to an external power source.

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