CN208386276U

CN208386276U - A kind of gardening mowing electric tool

Info

Publication number: CN208386276U
Application number: CN201821037694.6U
Authority: CN
Inventors: 叶晓波
Original assignee: Ningbo Leading Intelligent Equipment Co Ltd
Current assignee: Ningbo Leading Intelligent Equipment Co Ltd
Priority date: 2018-07-03
Filing date: 2018-07-03
Publication date: 2019-01-15
Anticipated expiration: 2028-07-03

Abstract

The utility model provides a kind of gardening mowing electric tool, uses new structural motor, which includes stator module, rotor assembly；The end of the stator module is socketed with insulating end plate, the insulating end plate interval is configured with plurality of slots, a plurality of matched insertion slots of connection terminal, the main part of the connection terminal is embedded in the slot, interconnecting piece of the side of the main part configured with intermediate perforation, the interconnecting piece is to be socketed cable；The rotor assembly is located at the inside of the stator module.The motor has structure simple, and size is small, and automatable production, motor work time pulse moves the features such as small.

Description

A kind of gardening mowing electric tool

Technical field

The utility model relates to a kind of electric tools, more particularly to a kind of gardening mowing electric tool.

Background technique

Grass trimmer be it is a kind of for cutting the grass on a lawn, the machine tool of vegetation etc., fuel oil can be divided into according to its energy source and cut Careless machine and power-operated mower.(weeding) is mowed by motor drive operational head when grass trimmer works.Motor is mainly by stator Component and rotor assembly two parts are constituted, and stator module has independent winding construction, and winding is coiled by high-intensitive winding enameled wire, Rotor assembly is configured in the inside of stator module, the electric current and magnetic caused by rotor permanent magnet when external power supply current passes through Field interactions, the device such as blade for generating electromagnetic torque and rotor rotation being driven to drive its connection carry out operation.Existing electricity The stator member structure of machine is complicated, with being drawn by the way of flexible circuit conductor piercing welding mostly after the complete line of enameled wire or embedding complete line, Conducting wire after extraction is attached with controller again, is led to enameled wire and to be carried out after drawing the welding and welding between flexible circuit conductor The production process of the outlet binding of insulating wrapping and lead-out wire is more, and motor size is big and is difficult to reduce optimization；Motor it is reliable Property the batch production of poor, manufacturing cost height low efficiency.

Utility model content

The purpose of this utility model aims to solve at least one of described technological deficiency.Based on the above issues, the utility model There is provided a kind of new structural motor its be applied to mowing electric tool, which has structure simple, and size is small, can automate Production, motor work time pulse moves the features such as small.The utility model adopts the following technical solution thus:

A kind of gardening mowing electric tool, comprising the motor being set in power tool body, the motor includes, fixed Sub-component, rotor assembly；

The one end of the stator module is socketed with insulating end plate, and the insulating end plate is circumferentially spaced configured with a plurality of Slot, the slot is to be embedded in matched connection terminal；The main part of the connection terminal is embedded in the slot, the main body Interconnecting piece of the side in portion configured with intermediate perforation, the interconnecting piece is to be socketed cable；

The rotor assembly is located at the inside of the stator module.

Preferably, which includes two intermediate interconnecting pieces perforated, and the internal diameter of the interconnecting piece is the cable 1~5 times of outer diameter.

Preferably, the main part of the connection terminal is embedded in the slot, the main part it is opposite with the interconnecting piece Side is configured with the claw to connect coiling.

Preferably, the angle of the claw and the main part is no more than 90 degree.

Preferably, the electric tool also includes battery module, and the voltage of the battery module is lower than 60V, inside include The battery core of several electric connections.

Preferably, the end of the stator module is socketed with insulating end plate, the insulating end plate it is circumferentially spaced be configured with 3 A slot, 3 matched insertion slots of connection terminal.

Preferably, which includes main part, claw, interconnecting piece；The claw is respectively provided at the interconnecting piece The two sides of the main part.

Preferably, which also includes transition part, and one end of the transition part connects main part, and the other end connects the card The angle of pawl, the transition part and the main part is less than 20 degree.

Preferably, the connection terminal main part, the claw, the interconnecting piece are integrally formed.

Preferably, which includes the fixed part for being fixed on the insulating end plate of intermediate perforation, to fixed electricity Source line；Cylindric yoke portion and from the inner circumferential in the yoke portion towards rotor-side 9 teeth portion outstanding；The teeth portion surface coating There is insulating layer, is wound with enameled wire in the teeth portion；The output axis connection work head of the rotor assembly, the rotor assembly turn It is dynamic to drive the work head rotation to mow.The motor is brushless motor.The stator module splices comprising plurality of layers The steel disc of conjunction.

The advantages of scheme in compared with the existing technology, the utility model:

1) by the optimization to electric machine structure that motor work time pulse is moved is small, while stable torque can be provided.

2) by the optimization to electric machine structure, simplify the production process of motor, improve the reliability of motor.

Detailed description of the invention

The utility model is further described with reference to the accompanying drawings and embodiments:

Fig. 1 is the structural schematic diagram of the motor of the utility model embodiment；

Fig. 2 is the structural schematic diagram of the stator module of the motor of the utility model embodiment；

Fig. 3 is the structural schematic diagram of the stator module of the motor of an embodiment of the present invention；

Fig. 4 is the partial enlarged view in Fig. 3；

Fig. 5 is the schematic cross-section of stator module in Fig. 2；

Fig. 6 is the partial enlarged view in Fig. 5.

Specific embodiment

Above scheme is described further below in conjunction with specific embodiment.It should be understood that these embodiments are for illustrating The utility model and be not limited to limitation the scope of the utility model.Implementation condition used in the examples can be according to specific producer Condition do further adjustment, the implementation condition being not specified is usually the condition in routine experiment.

It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ", " right side " and similar statement are for illustrative purposes only.

Embodiment:

Next in conjunction with Fig. 1 to the structural schematic diagram of the motor of description the utility model embodiment.Moreover, including in attached drawing Schematic diagram, the reduced scale for having all parts and ratio in length and breadth etc. and practical different situation.Also, it in this application, indulges Screenshot refers to that, along the section in the face for the rotary shaft for including brushless motor, cross section refers to along the face vertical with the rotary shaft Section.

Motor 10 is the motor of inner-rotor type, for example, as gardening mowing electric tool driving source and be utilized.Such as Shown in Fig. 1, motor 10 includes stator module 11, rotor assembly 12, axis 13, insulating end plate 14, shell 15.

Rotor assembly 12 has as shown in Figure 1, cylindric rotor core and the permanent magnet for being configured in rotor core.And And for the number of poles of permanent magnet, be not particularly limited, also can be set to such as 4 poles, 6 poles or 8 extremely.As described above, can make The magnetic pole of teeth portion changes, and the variation for the magnetic force that can be generated according to teeth portion for permanent magnet rotates rotor assembly.

Axis 13 is columned component by the inside of rotor core, rotating integrally with rotor assembly 12.Axis 13 has The length exposed from the both ends of rotor core 1, also exposed from one end of shell 15.Brushless motor 10 can be by exposing from shell 15 The part of axis 13 rotary force of rotor assembly is output to the outside.

Insulating end plate 14 is socketed in the end of stator module, and insulating end plate interval is configured with plurality of slots, a plurality of The main part of the matched insertion slot of connection terminal, connection terminal is embedded in slot, and the side of main part is connected with intermediate perforation Interconnecting piece, the interconnecting piece is to be socketed cable (also referred to as power supply line).In one embodiment, the quantity of slot is 3, not special Not limiting can also be with 6,9 etc..In one embodiment, interconnecting piece and main part are integrally formed, and the side of main part is default Protrusion the interconnecting piece of intermediate perforation is formed through being twisted, the internal diameter of the interconnecting piece is 1~5 times of the outer diameter of cable, preferably Internal diameter is 1~2 times of the outer diameter of cable, is convenient for automated job in this way.The interconnecting piece of centre perforation is in C font, O font, D Font, P font, q font.

Next the embodiment for being equipped with connection terminal that stator module is described in conjunction with Fig. 2,5,6, it is fixed shown in Fig. 2 Sub-component 21 includes, cylindric yoke portion 211 and with the inner circumferential from yoke portion 211 towards rotor assembly (not shown) pleurapophysis The teeth portion 212 of shape out.Stator module 21, for example, being formed by connecting by the steel plate of several stackings.Yoke portion 211, outer peripheral surface it In, the back side of teeth portion 212 there is detent portion 211a.Shell 15 is fixed on by detent portion 211a.The coiling of enameled wire etc. twines Around teeth portion 212, electric current flows in coiling when motor operation, so as to magnetize teeth portion 212.Further, it is possible to according to coiling The direction of the electric current of middle flowing makes teeth portion 212 change to the magnetic field of rotor assembly side.Moreover, it is shown in fig. 2, there are 9 9 slot structures of a teeth portion 112, still, the structure of teeth portion 212 is not limited only to this.For example, the quantity of teeth portion 112 may be 6 A, 12 specific view applications, this is not restricted.The shaft core position of A1-A2 substantially stator module in Fig. 5；Fig. 5 is In Fig. 2 stator module axially along B1-B2 schematic cross-section, insulating end plate 24 is socketed in the end of stator module 211, insulating end Connection terminal 213 is embedded in plate 24.Next connection terminal is described in conjunction with Fig. 6, connection terminal 213 is embedded in insulating end plate 24, The main part of the partial enlarged view that Fig. 6 is in Fig. 5 214, connection terminal 213 is embedded in slot 241, and the side of main part is connected with (cable is (also referred to as electric when connection to be socketed cable by the interconnecting piece 213b (being preferably integrally formed) of centre perforation, interconnecting piece 213b Source line, not shown) penetrate the interconnecting piece 213b), the side opposite with interconnecting piece 213b of main part is connected with claw 213a, should Claw 213a is to connect and (hook) coiling (enameled wire) 213a2.The main part referred in present embodiment is embedded in slot, can be Main part is partially submerged into slot or has fully embedded into slot.Claw 213a includes transition part 213a1, the transition in one embodiment Portion one end 213a1 connect main part with main part, and the other end connects the claw, the angle of the transition part and the main part Less than 20 degree (preferably substantially parallel).In present embodiment, claw 213a connection is realized after (hooking) coiling 213a2 through spot welding It is fixedly connected.

Next the schematic diagram that stator module is described in conjunction with Fig. 3,4, shown in Fig. 3, stator module 31 includes, cylindric Yoke portion 311 and teeth portion 312 with the inner circumferential from yoke portion 211 towards rotor assembly (not shown) side shape outstanding.Stator Component 31, for example, being formed by connecting by the steel plate of several stackings.Yoke portion 311, among outer peripheral surface, teeth portion 212 the back side have Detent portion 311a.Shell (not shown) is fixed on by detent portion 311a.It is shown in figure, there are 9 teeth portion 312, teeth portion 312 Surface is coated with insulating layer (not shown), and combination constitutes slot between 2 teeth portion, and structure is as shown in Figure 4.Fig. 4 is the part of C in Fig. 3 Enlarged drawing.

In one embodiment, connection terminal includes the interconnecting piece of base portion and intermediate perforation, and the connection of interconnecting piece one end connects Socket part, the other end connect main part；The quantity of connecting pin is for 2 and spaced intermediate, and the width of interconnecting piece is preferably main part (maximum) width (10%~300%, preferable 50%~100%).Width is too small inadequate with the bonding strength after cable, no It can reliably connect.

In one embodiment, the interconnecting piece of intermediate perforation is substantially in " c-type " in this way convenient for the size for adjusting internal diameter, is widened The application range of connection terminal.Interconnecting piece connection cables, cable scurry into centre be punched through welding or squeeze be attached.It is intermediate The interconnecting piece design of perforation is advantageous in that, 1) compared to the existing weld part by terminal directly weld the cable connecting pin The structure of son makes it possible to reliable connection cables, 2) cable scurries into the interconnecting piece of intermediate perforation convenient for the whole line of cable；3) connecting pin Son improves the reliability of connection configured with 2 interconnecting pieces.In other implementations, interconnecting piece (or the connection of intermediate perforation The main body group meeting in portion and connection terminal) it is in O font, D font, P font, q font.

In one embodiment, the main part of connection terminal is embedded in the slot, one opposite with interconnecting piece of main part Side is configured with claw, and the claw is to connect enameled wire.The angle of the preferable claw and main part is no more than 90 degree (preferably , angle is no more than 60 degree).What claw and main part were integrated.The claw connects after the completion of hooking enameled wire coiling, electric in this way Coiling (coil) is transferred to by connection terminal.

The motor of above embodiment is preferably applied to the electric tool mowed, such as hand mower, and self-powered is mowed Machine or grass-mowing machine etc..And electric tool has, tool body, work head, moving assembly (idler wheel or crawler belt), driving power, It starts switch.Tool body accommodates and fixes above-mentioned motor, also accommodates the rotary force of the axis of motor being transmitted to work head side Rotary transfer machine.Moving assembly carries out operation to mobile electric tool.Elder generation's started by press switchs when electric tool works, Control module in electric tool is acted according to instruction.

Above-mentioned gardening mowing electric tool can also be blower.

In the design of connection terminal, the first end of connection terminal is electrically connected (mode preferably welded) winding wire Circle, second end are electrically socketed cable/power supply line.(surface of usual cable is covered with insulating layer, removes insulating layer using tool and reveals Conduction copper core out, the part are the welding ends of cable, for penetrating the interconnecting piece of intermediate perforation).Connection terminal using one at The design of type.

In the design of motor, the motor of above-mentioned gardening mowing electric tool preferably uses inner rotor type motor, the electricity Machine is for driving work head to carry out cutting operation.The motor can also be used for driving moving assembly, be only intended to driving work head Power of motor is greater than the power of motor of driving moving assembly.

In the design of motor, the motor of above-mentioned gardening mowing electric tool includes stator module and is configured at stator The rotor assembly surveyed in component, the side of stator module are configured with insulating end plate, 3 slots uniformly configured of the insulating end plate, This is embedded with connection terminal, connection terminal one end connecting stator winding, and the other end of the connection terminal is electrically connected power supply line. The motor of the electric tool of gardening mowing in one embodiment uses 9 slot, 8 pole structure.Gardening is mowed electronic in one embodiment 9 slot of motor, the 6 pole structure of tool.12 slot of motor, the 8 pole structure of the electric tool of gardening mowing in one embodiment.

In the design of electric tool, above-mentioned gardening mowing electric tool also includes the battery module of driving motor, should Battery module can be selected from lithium base rechargeable battery, and battery module includes several according to certain rule connection in one embodiment Cylindrical type battery core (the length 65mm, 70mm of battery core；Diameter is between 18mm~22mm), the voltage of the battery module is no more than 60V, the voltage 20V, 40V, 60V of preferable battery module.The quantity of battery module can be one, two in one embodiment Or other quantity are specifically depending on application.

The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique People be that can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention. It is all according to the spirit of the present invention substantially equivalent transformation that is done or modification, should all cover the protection scope of the utility model it It is interior.

Claims

1. a kind of gardening mowing electric tool, which is characterized in that comprising the motor being set in power tool body, the electricity Machine includes stator module, rotor assembly；

The one end of the stator module is socketed with insulating end plate, and the insulating end plate is circumferentially spaced to be inserted configured with a plurality of Slot, the slot is to be embedded in matched connection terminal；The main part of the connection terminal is embedded in the slot, the main part Interconnecting piece of the side configured with intermediate perforation, the interconnecting piece is socketed cable；

The rotor assembly is located at the inside of the stator module.

2. electric tool as described in claim 1, which is characterized in that the connection terminal includes two intermediate connections perforated Portion, the internal diameter of the interconnecting piece are 1~5 times of the outer diameter of cable.

3. electric tool as described in claim 1, which is characterized in that the side opposite with the interconnecting piece of the main part Configured with the claw to connect coiling.

4. electric tool as described in claim 1, which is characterized in that the angle of claw and the main part is no more than 90 degree.

5. electric tool as described in claim 1, which is characterized in that also include battery module, the voltage of the battery module Lower than 60V, internal includes the battery core of several electric connections.

6. electric tool according to any one of claims 1 to 5, which is characterized in that the end of the stator module is socketed with Insulating end plate, the insulating end plate it is circumferentially spaced be configured with 3 slots, described in 3 matched insertions of connection terminal Slot.

7. electric tool according to any one of claims 1 to 5, which is characterized in that the connection terminal include main part, Claw, interconnecting piece；The claw and the interconnecting piece are respectively provided at the two sides of the main part.

8. electric tool as claimed in claim 7, which is characterized in that the claw also includes transition part, the transition part The angle of one end connection main part, the other end connection claw, the transition part and the main part is less than 20 degree.

9. electric tool as claimed in claim 7, which is characterized in that the main part, the claw, the interconnecting piece are one It is body formed.

10. electric tool as described in claim 1, which is characterized in that the stator module includes being fixed on for intermediate perforation The fixed part of the insulating end plate, to fixed power source line；Cylindric yoke portion and from the inner circumferential in the yoke portion towards rotor Side 9 teeth portion outstanding, the teeth portion surface is coated with insulating layer, is wound with enameled wire in the teeth portion；The rotor assembly Axis connection work head is exported, the rotation of the rotor assembly drives the work head to rotate to mow.