CN214380541U - Motor and garden instrument - Google Patents

Abstract

The utility model provides a motor, which comprises a stator component, an inner rotor component and a controller, wherein the inner rotor component is rotatablely matched with the stator component, and comprises an inner rotor main body part and a rotating shaft arranged on the inner rotor main body part; the controller is arranged on one axial side of the stator assembly and is not in contact with the rotating shaft. The garden tool comprises a shell and the motor arranged in the shell. The motor and the controller are integrated, so that the space required by the motor and the controller is greatly reduced, and the motor and the controller are particularly suitable for handheld tools with small requirements, such as hair dryers, lawn mowers, pruning shears and other handheld garden tools. And the motor obviously reduces the connecting processes between the motor and the controller, reduces the installation processes of the motor and the controller on the whole machine, and also obviously reduces the material cost and the labor cost.

Description

Motor and garden instrument

Technical Field

The utility model relates to the technical field of motors.

Background

Hand-held tools need to be small to be convenient for users to use, such as garden tools like hair dryers, lawn mowers and pruning shears, but hand-held tools with motors are heavy and bulky, so the motors need to be improved in the direction of small size.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in that, to the above-mentioned defect in the correlation technique, provide a modified motor and garden instrument.

The utility model provides a technical scheme that its technical problem adopted includes: provided is an electric machine including:

a stator assembly;

the inner rotor assembly is rotatably matched with the stator assembly and comprises an inner rotor main body part and a rotating shaft arranged on the inner rotor main body part;

and the controller is arranged on one axial side of the stator assembly and is not contacted with the rotating shaft.

Preferably, the motor includes an end cap provided at an axial side of the stator assembly, and the controller is provided on the end cap.

Preferably, the rotating shaft comprises an output end for outputting power, the end covers comprise a front end cover and a rear end cover, the front end cover and the rear end cover are respectively arranged on two sides of the stator assembly, the output end and the front end cover are positioned on the same side of the motor, and the controller is arranged on the rear end cover.

Preferably, the motor comprises at least two end cover connecting pieces distributed circumferentially, wherein the end cover connecting pieces are connected with the front end cover and the rear end cover and are positioned on the outer side of the stator assembly.

Preferably, the end cover is provided with at least two connecting parts which are distributed circumferentially, the controller is provided with at least two connecting holes corresponding to the connecting parts, and the connecting parts are connected with the connecting holes so that the end cover is connected with the controller.

Preferably, the end cover is provided with the fool-proof portion protruding in the axial direction, the controller is provided with a fool-proof hole matched with the fool-proof portion, and the radial size of the fool-proof hole is different from that of the connecting hole.

Preferably, the controller includes a PCB, an avoiding hole is formed in the PCB, and the rotating shaft passes through the avoiding hole, so that the controller does not contact with the rotating shaft.

Preferably, the PCB is circular.

Preferably, the edge of the PCB is provided with a card slot for clamping a wire.

The utility model provides a technical scheme that its technical problem adopted includes: a garden tool is provided, comprising a housing and the motor arranged in the housing.

Implement the technical scheme of the utility model, following beneficial effect has at least: the motor and the controller are integrated, so that the space required by the motor and the controller is greatly reduced, and the motor and the controller are particularly suitable for handheld tools with small requirements, such as hair dryers, lawn mowers, pruning shears and other handheld garden tools. And the motor obviously reduces the connecting processes between the motor and the controller, reduces the installation processes of the motor and the controller on the whole machine, and also obviously reduces the material cost and the labor cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a perspective view of a motor according to an embodiment of the present invention.

Fig. 2 is a perspective view of the motor of fig. 1.

Fig. 3 is an exploded view of the motor of fig. 1.

Fig. 4 is an exploded view of the motor of fig. 1.

Fig. 5 is an exploded view of the motor of fig. 1.

Fig. 6 is a perspective view of a controller of the motor of fig. 1.

The reference numerals in the figures denote: inner rotor subassembly 1, inner rotor main part 11, pivot 12, output 121, stator module 2, end cover 3, front end housing 31 passes hole 31a, rear end cap 32, screw hole 32a, connecting portion 33, prevent slow-witted portion 34, end cover connecting piece 4, controller 5, connecting hole 5a, PCB51 dodges hole 5b, draw-in groove 5c, prevent slow-witted hole 5d, controller threaded connection 6.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that if the terms "front", "back", "upper", "lower", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are used herein to indicate an orientation or positional relationship, they are constructed and operated in a particular orientation based on the orientation or positional relationship shown in the drawings, but are only for convenience of describing the present invention, and do not indicate that the device or component being referred to must have a particular orientation, and therefore, should not be construed as limiting the present invention. It is also to be understood that, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," "disposed," and the like, if used herein, are intended to be inclusive, e.g., that they may be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. If the terms "first", "second", "third", etc. are used herein only for convenience in describing the present technical solution, they are not to be taken as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

Referring to fig. 1 to 6, an electric machine according to an embodiment of the present invention includes:

a stator assembly 2;

the inner rotor assembly 1 is rotatably matched with the stator assembly 2, and the inner rotor assembly 1 comprises an inner rotor body part 11 and a rotating shaft 12 arranged on the inner rotor body part 11;

and a controller 5 fixedly provided on one axial side of the stator assembly 2, the controller 5 avoiding the rotating shaft 12 and not contacting the rotating shaft 12.

The motor and the controller 5 are integrated, so that the space required by the motor and the controller is greatly reduced, and the motor and the controller are particularly suitable for handheld tools with small requirements, such as hair dryers, grass trimmers, pruning shears and other handheld garden tools. And the motor obviously reduces the connecting process between the motor and the controller 5, reduces the installation process of the motor and the controller 5 on the whole machine, and also obviously reduces the material cost and the labor cost.

The motor includes an end cap 3 provided at an axial side of the stator assembly 2, and a controller 5 is provided on the end cap 3 so as to be connected to the stator assembly 2.

The rotating shaft 12 comprises an output end 121 used for outputting power connected with an external mechanism, the end cover 3 comprises a front end cover 31 and a rear end cover 32, the front end cover 31 and the rear end cover 32 are respectively arranged at two sides of the stator assembly 2, the output end 121 and the front end cover 31 are positioned at the same side of the motor, and the controller 5 is arranged on the rear end cover 32.

The motor comprises at least two end cover connecting pieces 4 distributed circumferentially, wherein the end cover connecting pieces 4 are connected with a front end cover 31 and a rear end cover 32 in the axial direction and are positioned on the outer side of the stator assembly 2. The end cap connecting member 4 is preferably a screw connecting member, one of the front end cap 31 and the rear end cap 32 is provided with a through hole 31a, the other is provided with a screw hole 32a, and the end cap connecting member 4 is connected with the screw hole 32a through the through hole 31 a.

The rear end cover 3 is provided with at least two connecting parts 33 distributed circumferentially, the connecting parts 33 protrude axially, preferably are columnar, the controller 5 is provided with at least two connecting holes 5a corresponding to the connecting parts 33 one by one, and the connecting parts 33 are connected with the connecting holes 5a so as to connect the end cover 3 with the controller 5; preferably, the motor includes a controller screw-thread connector 6, and the controller screw-thread connector 6 passes through the connection hole 5a and is connected with the connection part 33.

The rear end cover 3 is provided with a fool-proof portion 34 protruding in the axial direction, the controller 5 is provided with a fool-proof hole 5d matched with the fool-proof portion 34, the radial size of the fool-proof hole 5d is different from that of the connecting hole 5a, and the fool-proof portion 34 corresponds to that of the fool-proof hole 5 d.

The controller 5 comprises a PCB51 and components arranged on the PCB51, wherein an avoiding hole 5b is formed in the center of the PCB51, and the rotating shaft 12 penetrates through the avoiding hole 5b so that the controller 5 does not contact with the rotating shaft 12.

The end cap 3 is circular and the PCB51 is correspondingly circular.

A clamping groove 5c for clamping a lead is arranged at the edge of the PCB51, and the clamping groove 5c is in a notch shape; the number of the card slots 5c may be one, or may be at least two, and at least two card slots 5c are circumferentially distributed on the PCB 51. The phase line of the motor can be clamped in the clamping groove 5c to realize fixation.

The utility model discloses a garden instrument among embodiment, including the casing and establish foretell motor in the casing. The garden tool is preferably a hand held tool, and may be a hair dryer, a lawnmower, a pruning shears, or the like. This garden instrument is owing to adopt the utility model discloses foretell motor, motor and 5 integration of controller have dwindled the motor greatly and have controlled its required space to this motor has obviously reduced the connection process between motor and the controller 5, has reduced the installation of motor and controller 5 on the complete machine, also obviously reduces material cost and cost of labor.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, which may be modified, combined, and varied by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. An electric machine, comprising:

a stator assembly (2);

the inner rotor assembly (1) is rotatably matched with the stator assembly (2), and the inner rotor assembly (1) comprises an inner rotor main body part (11) and a rotating shaft (12) arranged on the inner rotor main body part (11);

and a controller (5) provided on one axial side of the stator assembly (2), the controller (5) not being in contact with the rotating shaft (12).

2. The machine according to claim 1, characterized in that it comprises an end cover (3) arranged axially laterally of the stator assembly (2), the controller (5) being arranged on the end cover (3).

3. The electric machine according to claim 2, characterized in that the rotating shaft (12) comprises an output end (121) for outputting power, the end cover (3) comprises a front end cover (31) and a rear end cover (32), the front end cover (31) and the rear end cover (32) are respectively arranged at two sides of the stator assembly (2), the output end (121) and the front end cover (31) are positioned at the same side of the electric machine, and the controller (5) is arranged on the rear end cover (32).

4. The machine according to claim 3, characterized in that it comprises at least two circumferentially distributed end cover connections (4), said end cover connections (4) connecting the front end cover (31) and the rear end cover (32) and being located outside the stator assembly (2).

5. The electric machine according to claim 2, characterized in that the end cover (3) is provided with at least two circumferentially distributed connecting portions (33), the controller (5) is provided with at least two connecting holes (5a) corresponding to the connecting portions (33), and the connecting portions (33) are connected with the connecting holes (5a) so as to connect the end cover (3) with the controller (5).

6. The electric machine according to claim 5, characterized in that the end cover (3) is provided with a fool-proof portion (34) protruding axially, the controller (5) is provided with a fool-proof hole (5d) matching with the fool-proof portion (34), and the radial dimension of the fool-proof hole (5d) is different from the radial dimension of the connecting hole (5 a).

7. The electric machine according to claim 1, characterized in that the controller (5) comprises a PCB (51), an avoiding hole (5b) is provided on the PCB (51), and the rotating shaft (12) passes through the avoiding hole (5b) so that the controller (5) does not contact the rotating shaft (12).

8. An electric machine according to claim 7, characterized in that the PCB (51) is circular.

9. An electric machine according to claim 7, characterized in that the edge of the PCB (51) is provided with a snap groove (5c) for snapping a wire.

10. A garden tool, comprising a housing and a motor according to any one of claims 1 to 9 provided in the housing.

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