CN221669658U - Electric tool motor - Google Patents

Electric tool motor Download PDF

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Publication number
CN221669658U
CN221669658U CN202323448383.2U CN202323448383U CN221669658U CN 221669658 U CN221669658 U CN 221669658U CN 202323448383 U CN202323448383 U CN 202323448383U CN 221669658 U CN221669658 U CN 221669658U
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CN
China
Prior art keywords
electric tool
bearing
tool motor
shell
rotor
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Application number
CN202323448383.2U
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Chinese (zh)
Inventor
罗云建
罗姚锋
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Kada Micromotor Manufacturing Co ltd
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Kada Micromotor Manufacturing Co ltd
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Priority to CN202323448383.2U priority Critical patent/CN221669658U/en
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Abstract

The utility model provides an electric tool motor, and belongs to the technical field of motors. The utility model relates to an electric tool motor, which comprises a stator, wherein a rotor is rotationally connected to the top of the stator, the rotor comprises a shell, radiating fins are fixedly arranged on the outer side of the shell, a fixing shell is fixedly arranged on the outer side of the radiating fins, two ends of each radiating fin are arranged on the outer side of the fixing shell, and each radiating fin is in a spiral structure.

Description

Electric tool motor
Technical Field
The utility model relates to the technical field of motors, in particular to an electric tool motor.
Background
The motor for the electric tool is a motor for driving the electric tool to rotate or reciprocate, and usually adopts a direct current motor or an alternating current motor, and the direct current motor generally adopts a brush direct current motor or a brushless direct current motor, which have the characteristics of high rotating speed, large torque, high efficiency and the like, and can meet the requirement of the electric tool on power output. The rotor of the brush direct current motor is composed of permanent magnets, has higher starting torque and overload capacity, and is suitable for the occasion of heavy load starting. The brushless DC motor adopts the electronic commutator to replace the brush and the commutator, has the advantages of low noise, long service life, high efficiency and the like, is suitable for occasions with higher requirements on noise and vibration, and the AC motor usually adopts an induction motor or a synchronous motor, and has the advantages of simple structure, convenient maintenance, low cost and the like, but has relatively low rotating speed and torque. The induction motor generates a rotating magnetic field through the stator winding to drive the rotor to rotate, so that electric energy conversion is realized. The synchronous motor generates a rotating magnetic field through direct current excitation to drive the rotor to rotate, so that electric energy conversion is realized.
Based on the above, the present inventors found that the following problems exist: the brushless motor of the outer rotor is usually used for obtaining larger rotating speed and torque of the existing electric tool, through holes are formed in one end of the base and one end of the shell of the brushless motor for heat dissipation, so that heat dissipation of an internal coil is facilitated, a large amount of dust is easily generated in the working environment of the electric tool, the dust is sucked into the motor to easily damage an enameled wire, and the coil wound by the enameled wire is easily short-circuited and is inconvenient.
Accordingly, in view of the above, an improvement has been made in view of the conventional structure and drawbacks, and an electric tool motor is provided for achieving a more practical value.
Disclosure of utility model
In order to solve the technical problems, the embodiment of the utility model provides an electric tool motor, which is realized by the following technical scheme:
The utility model provides an electric tool motor, includes the stator, the stator top rotates and is connected with the rotor, the rotor includes the shell, shell outside fixed mounting has heat radiation fins, heat radiation fins outside fixed mounting has the fixed shell, heat radiation fins both ends all set up in the fixed shell outside, just heat radiation fins is the heliciform structure.
The electric tool has the beneficial effects that the rotor is rotationally connected to the top of the stator, so that the stator is conveniently electrified to drive the rotor to rotate, thereby providing power for the electric tool, the radiating fins are fixedly arranged outside the shell, the radiating fins are conveniently used for radiating heat generated inside the shell, the fixing shell is fixedly arranged outside the radiating fins, the fixing shell is conveniently used for fixing and protecting the radiating fins, the two ends of the radiating fins are arranged outside the fixing shell, the radiating fins are in a spiral structure, the rotating of the shell is convenient, the radiating fins generate air flow at the two ends outside the fixing shell, and the air flow takes away the heat through the surfaces of the radiating fins, so that the effect of fully radiating the heat of the device is achieved.
Further, the stator comprises a base, a fixing seat is arranged at the top of the base, a winding frame is fixedly arranged at the top of the fixing seat, a winding groove is formed in the surface of the winding frame, and an enameled wire is wound on the winding groove.
The beneficial effect of adopting above-mentioned further scheme is, offered the wire winding groove through the reel surface, the wire winding groove winds and is equipped with the enameled wire, and the enameled wire circular telegram of being convenient for produces the rotation magnetic field, conveniently drives the rotor and rotates.
Furthermore, a power interface is arranged on one side of the base, and the power interface is electrically connected with the enameled wire.
The power supply device has the beneficial effects that the power supply interface is arranged on one side of the base and is electrically connected with the enameled wire, so that the power supply of the motor tool is conveniently communicated with the power supply interface, and the power supply is conveniently used for supplying power to the enameled wire.
Further, 12 winding grooves are formed.
The adoption of the further scheme has the beneficial effects that 12 windings are formed through the winding grooves, so that enamelled wires are conveniently wound into 12 windings, and a uniform rotating magnetic field is conveniently generated.
Further, the middle part of the winding frame is provided with a bearing, the middle part of the top end of the fixing seat is provided with a bearing groove, and the bottom of the bearing is fixedly connected with the bearing groove.
The beneficial effect of adopting above-mentioned further scheme is, offered the bearing groove through fixing base top middle part, bearing bottom and bearing groove fixed connection are convenient for with bearing fixed mounting on the base, make things convenient for rotor and bearing fixed connection, make the rotor can rotate with the stator and be connected.
Further, a rotating shaft is fixedly arranged at the top of the inner side of the shell, the rotating shaft penetrates through the bearing, the rotating shaft is fixedly connected with the inner side of the bearing, and the winding frame is fixedly connected with the outer side of the bearing.
The beneficial effect of adopting above-mentioned further scheme is, through pivot and the inboard fixed connection of bearing, bobbin and the outside fixed connection of bearing, be convenient for rotate rotor and stator and be connected.
Further, permanent magnets are fixedly arranged on the inner side face of the shell.
The adoption of the further scheme has the beneficial effects that the permanent magnet is fixedly arranged on the inner side surface of the shell, so that the rotor is driven to rotate by the rotating magnetic field generated by the enameled wire.
Further, 14 permanent magnets are arranged, and the permanent magnets are arranged in an annular array.
The adoption of the further scheme has the beneficial effects that 14 permanent magnets are arranged and are arranged in an annular array, so that 7 pairs of poles are formed by the permanent magnets conveniently, and the device can generate larger torque and rotating speed.
Further, the top of the shell is fixedly provided with a connector.
The electric tool has the beneficial effects that the connector is fixedly arranged at the top of the shell, so that the output end of the electric tool is conveniently and fixedly connected with the connector, and the electric tool can conveniently output power.
Further, the bottom of the base is provided with a mounting groove.
The electric tool has the beneficial effects that the mounting groove is formed in the bottom of the base, so that the electric tool is convenient to fixedly connect with the electric tool.
The beneficial effects of the utility model are as follows: according to the electric tool motor obtained through the design, the rotor is rotationally connected to the top of the stator, so that the stator is conveniently electrified to drive the rotor to rotate, power is provided for an electric tool, the radiating fins are fixedly arranged on the outer side of the shell, heat generated in the shell is conveniently radiated by the radiating fins, the fixing shell is fixedly arranged on the outer side of the radiating fins, the radiating fins are conveniently fixed and protected by the fixing shell, the two ends of the radiating fins are arranged on the outer side of the fixing shell, the radiating fins are in a spiral structure, the shell is conveniently rotated, air flows are generated at the two ends of the radiating fins on the outer side of the fixing shell, and the air flows pass through the surfaces of the radiating fins to take away the heat, so that the effect of fully radiating the device is achieved, dust generated by the electric tool can be effectively prevented from entering the motor, and the electric tool motor has high practical value.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a motor of an electric tool according to the present utility model;
FIG. 2 is an exploded view of a motor of an electric tool according to the present utility model;
fig. 3 is a schematic perspective view of a heat dissipation fin according to the present utility model;
Fig. 4 is a schematic perspective view of a rotor according to the present utility model;
FIG. 5 is an exploded view of a stator provided by the present utility model;
fig. 6 is a schematic perspective view of a base provided by the present utility model.
In the figure: 101. a rotor; 10101. a housing; 10102. a heat radiation fin; 10103. a fixed case; 10104. a connector; 10105. a rotating shaft; 10106. a permanent magnet; 102. a stator; 10201. a base; 10202. a power interface; 10203. a fixing seat; 10204. a bearing groove; 10205. a bobbin; 10206. enamelled wires; 10207. a bearing; 10208. and a mounting groove.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Embodiment one of the electric tool Motor of the present utility model
The utility model provides the following technical scheme: as shown in fig. 1-3, an electric tool motor includes a stator 102, a rotor 101 is rotatably connected to the top of the stator 102, the rotor 101 is rotatably connected to the top of the stator 102, so that the stator 102 is electrified to drive the rotor 101 to rotate, thereby providing power for an electric tool, the rotor 101 includes a housing 10101, a heat dissipation fin 10102 is fixedly installed outside the housing 10101, the heat dissipation fin 10102 is convenient for dissipating heat generated inside the housing 10101 through the heat dissipation fin 10102, a fixing shell 10103 is fixedly installed outside the heat dissipation fin 10102, the fixing shell 10103 is fixedly installed outside the heat dissipation fin 10102, so that the fixing shell 10103 is convenient for fixing and protecting the heat dissipation fin 10102, both ends of the heat dissipation fin 10102 are arranged outside the fixing shell 10103 through the rotation of the housing 10101, the heat dissipation fin 10102 is convenient for generating air flow at both ends of the outer side of the fixing shell 10103, and the air flow takes away heat for the device.
Second embodiment of the utility model of an electric tool motor
Referring to fig. 1-5, a stator 102 includes a base 10201, a fixing seat 10203 is disposed at the top of the base 10201, a winding frame 10205 is fixedly mounted at the top of the fixing seat 10203, winding grooves are formed in the surface of the winding frame 10205, enamelled wires 10206 are formed in the winding grooves, winding grooves are formed in the surface of the winding frame 10205, enamelled wires 10206 are conveniently electrified to generate a rotating magnetic field, a rotor 101 is conveniently driven to rotate, a power interface 10202 is formed in one side of the base 10201, the power interface 10202 is electrically connected with the enamelled wires 10206, a power source of a motor tool is conveniently communicated with the power interface 10202, a power source is conveniently supplied to the enamelled wires 10206, 12 winding grooves are formed in the surface of the winding frame 10205, 12 windings are conveniently formed in the winding grooves, a bearing 10207 is conveniently formed in the middle of the winding frame 10205, a bearing 4 is conveniently formed in the middle of the winding frame 10206, the bottom of the bearing 10207 is conveniently connected with the bearing groove 10204, the bottom of the bearing 10204 is fixedly, the bearing 10207 is fixedly connected with the bearing 10204, the bottom of the bearing 10204 is fixedly connected with the bearing 10207 through the middle of the fixing seat 10203, the bottom of the middle of the top of the bearing 10204 is conveniently connected with the bearing 10204, and the bearing 10207 can be fixedly connected with the rotor 101, and the rotor is conveniently rotatably connected with the rotor 101 through the fixing seat 10204, and the fixing seat 102101.
Embodiment III of the electric tool Motor of the utility model
Referring to fig. 1-6, a rotating shaft 10105 is fixedly installed at the top of the inner side of a casing 10101, the rotating shaft 10105 passes through a bearing 10207, the rotating shaft 10105 is fixedly connected with the inner side of the bearing 10207, a winding frame 10205 is fixedly connected with the outer side of the bearing 10207, the winding frame 10205 is fixedly connected with the inner side of the bearing 10207, a rotor 101 and a stator 102 are conveniently and rotationally connected, a permanent magnet 10106 is fixedly installed at the inner side of the casing 10101, a rotating magnetic field generated by enamelled wires 10206 is conveniently used for driving the rotor 101 to rotate, 14 permanent magnets 10106 are arranged, the permanent magnets 10106 are arranged in an annular array, 14 permanent magnets 10106 are arranged in an annular array, 7 groups of poles are conveniently formed by the permanent magnets 10106, the device can generate larger torque and rotating speed, a connector 10104 is fixedly installed at the top of the casing 10101, a connector 10104 is conveniently and is fixedly connected with the output end of a motor tool, the connector 10104, a power is conveniently and fixedly connected with the electric tool, a mounting groove 10201 is formed at the bottom of the casing 10201, and an electric tool is conveniently and fixedly connected with the electric tool through the mounting groove 10208.
Specifically, the working principle of the motor of the electric tool is as follows: during the use, power interface 10202 has been seted up through base 10201 one side, power interface 10202 and enameled wire 10206 electric connection, the power and the power interface 10202 intercommunication of motor instrument of being convenient for, the convenience power is enameled wire 10206 power supply, the winding groove has been seted up through the bobbin 10205 surface, the winding groove winds and is equipped with enameled wire 10206, the enameled wire 10206 circular telegram of being convenient for produces the rotating magnetic field, conveniently drive rotor 101 and rotate, there is connector 10104 through shell 10101 top fixed mounting, the motor instrument output and connector 10104 fixed connection of being convenient for, the convenience device is electric tool output power, mounting groove 10208 has been seted up through the base 10201 bottom, be convenient for with the device and electric tool inside carry out fixed connection, there is radiator fin 10102 through shell 10101 outside fixed mounting, be convenient for radiator fin 10102 to dispel the heat of radiator fin 10102 inside, be convenient for the fixed shell 10103 outside fixed mounting through radiator fin 10102, be convenient for the fixed shell 10103 to fix and protect, both ends all set up outside at the fixed shell 10103 through radiator fin 10102, and radiator fin 10102 is the heliciform structure, the rotation of being convenient for shell 10101 makes radiator fin 10102 take away the effect in the fixed airflow outside the radiator is taken away for the radiator fan 02.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides an electric tool motor, its characterized in that includes stator (102), stator (102) top rotates and is connected with rotor (101), rotor (101) are including shell (10101), shell (10101) outside fixed mounting has radiator fin (10102), radiator fin (10102) outside fixed mounting has fixed shell (10103), radiator fin (10102) both ends all set up in the outside of fixed shell (10103), just radiator fin (10102) are heliciform structure.
2. The electric tool motor according to claim 1, wherein the stator (102) comprises a base (10201), a fixing seat (10203) is arranged at the top of the base (10201), a winding frame (10205) is fixedly arranged at the top of the fixing seat (10203), a winding groove is formed in the surface of the winding frame (10205), and an enameled wire (10206) is wound around the winding groove.
3. The electric tool motor according to claim 2, wherein a power interface (10202) is provided on one side of the base (10201), and the power interface (10202) is electrically connected to the enamel wire (10206).
4. The electric tool motor of claim 2, wherein 12 winding slots are provided.
5. The electric tool motor according to claim 4, wherein a bearing (10207) is provided in the middle of the bobbin (10205), a bearing groove (10204) is provided in the middle of the top end of the fixing seat (10203), and the bottom of the bearing (10207) is fixedly connected with the bearing groove (10204).
6. The electric tool motor according to claim 4, wherein a rotating shaft (10105) is fixedly mounted on the top of the inner side of the housing (10101), the rotating shaft (10105) penetrates through a bearing (10207), the rotating shaft (10105) is fixedly connected with the inner side of the bearing (10207), and the winding frame (10205) is fixedly connected with the outer side of the bearing (10207).
7. A power tool motor according to claim 6, wherein the housing (10101) is fixedly mounted with permanent magnets (10106) on its inner side.
8. A power tool motor according to claim 7, wherein 14 permanent magnets (10106) are provided, and the permanent magnets (10106) are arranged in an annular array.
9. A power tool motor according to claim 6, wherein the top of the housing (10101) is fixedly provided with a connector (10104).
10. The electric tool motor according to claim 2, wherein the base (10201) is provided with a mounting groove (10208) at the bottom.
CN202323448383.2U 2023-12-17 2023-12-17 Electric tool motor Active CN221669658U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202323448383.2U CN221669658U (en) 2023-12-17 2023-12-17 Electric tool motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202323448383.2U CN221669658U (en) 2023-12-17 2023-12-17 Electric tool motor

Publications (1)

Publication Number Publication Date
CN221669658U true CN221669658U (en) 2024-09-06

Family

ID=92577742

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202323448383.2U Active CN221669658U (en) 2023-12-17 2023-12-17 Electric tool motor

Country Status (1)

Country Link
CN (1) CN221669658U (en)

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