Power head and gardening tool applying same

Abstract

The utility model relates to the field of gardening tools, in particular to a power head and a gardening tool applying the power head, the power head comprises a power head, a power line and a battery pack, the power head comprises a motor cover, a motor, a wind scooper and a controller base are fixedly installed in the motor cover, the wind scooper and the motor are coaxially arranged, and the power line is connected with the controller base. A motor controller is fixedly installed on the controller base, the motor controller is electrically connected with the motor, a rear cover is fixedly installed at the end, fixedly provided with the motor cover, of a motor output shaft, and a motor spline output shaft is arranged on the motor; the power head has the advantages that the power head can well replace gasoline gardening tools which are originally applied to a wide-belt trimmer, a lopper saw, a grass trimmer, a spraying machine, a ground auger and the like and take engines as power, disassembly and assembly are convenient, original power can be rapidly replaced, energy is saved, environment friendliness is achieved, and the power head is simple and compact in structure, convenient to assemble and maintain, small in size and light in weight.

Description

Technical Field

[0001] The utility model relates to the field of garden tools, in particular to a power head and a garden tool using the power head. Background Art

[0002] At present, most of the power heads used in outdoor power equipment or garden tools are engine engines. The disadvantages of engine engines are complex structure, inconvenient maintenance and operation, loud noise, serious pollution and safety hazards in gasoline storage.

[0003] Lithium batteries are currently the most widely used clean energy. As the capacity of lithium batteries continues to increase, their battery life will gradually exceed the single fuel consumption time of fuel engines. Therefore, the application of lithium batteries to power heads or high-power outdoor power equipment or garden tools driven by lithium batteries is becoming more and more popular in the market.

[0004] Therefore, it is necessary to invent a power head and a garden tool using the power head. Utility Model Content

[0005] To this end, the utility model provides a power head and a garden tool using the power head, the power head is energy-saving and environmentally friendly, has a simple and compact structure, is easy to assemble and maintain, is small in size and light in weight, so as to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a power head and a garden tool using the power head, comprising a power head, a power cord and a battery pack, the power head comprising a motor cover, a mounting hole is opened on the side of the motor cover, a female socket is fixedly installed in the mounting hole, the battery pack is electrically connected to the female socket through the power cord, a motor, an air guide cover and a controller seat are fixedly installed inside the motor cover, the air guide cover is coaxially arranged with the motor, a motor controller is fixedly installed on the controller seat, the motor controller is electrically connected to the female socket, the motor controller is electrically connected to the motor, the motor output shaft is fixedly installed with a rear cover fixedly installed at the end of the motor cover, and a motor spline output shaft is arranged on the motor.

[0007] Preferably, the motor is configured as a brushless DC outer rotor motor, the motor controller is used to control the rotation speed of the motor, and the battery pack is configured as a lithium battery pack.

[0008] Preferably, a plurality of air inlets are provided on the edge of the rear cover, air outlets are symmetrically provided on the side of the motor cover, air guide outlets are symmetrically provided on both sides of the air guide cover, and the air guide outlets are correspondingly connected to the air outlets.

[0009] A garden tool comprises a trimmer body and a connecting plate arranged at the end of the trimmer body, and also comprises the above-mentioned power head, wherein the end of the motor cover is fixedly connected to the end of the connecting plate away from the trimmer body by bolts, and the motor spline output shaft is connected to the trimmer body spline transmission matching.

[0010] The beneficial effects of the utility model are as follows: the power head can well replace the gasoline garden tools originally used in engines such as wide-band trimmers, high-branch saws, grass trimmers, sprayers, and ground drills; it is easy to disassemble and assemble, can well realize the rapid replacement of the original power, is energy-saving and environmentally friendly; its structure is simple and compact, it is easy to assemble and maintain, and it is small in size and light in weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A structural stereogram provided for the utility model;

[0012] Figure 2 The structural exploded diagram provided by the utility model;

[0013] Figure 3 A structural stereogram of the power head provided by the utility model;

[0014] Figure 4 The structural exploded diagram of the power head provided by the utility model;

[0015] Figure 5 A structural sectional view of the power head provided by the utility model;

[0016] Figure 6 A structural stereogram of the motor cover provided by the utility model;

[0017] Figure 7 A structural stereogram of the air guide cover provided by the utility model;

[0018] Figure 8 This is a structural stereogram of the back cover provided by the utility model.

[0019] In the figure: trimmer body 1, connecting plate 11, power head 2, power cord 3, battery pack 4, motor cover 21, air outlet 211, mounting hole 212, female socket 22, motor 23, motor spline output shaft 231, air guide cover 24, air guide port 241, controller seat 25, motor controller 26, rear cover 27, air inlet 271. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0021] Please refer to the attached Figure 1-8The utility model provides a power head and a garden tool using the power head, including a power head 2, a power cord 3 and a battery pack 4, the battery pack 4 is set as a lithium battery pack, the power head 2 includes a motor cover 21, a mounting hole 212 is opened on the side of the motor cover 21, a female socket 22 is fixedly installed in the mounting hole 212, the battery pack 4 is electrically connected to the female socket 22 through the power cord 3, a motor 23, an air guide cover 24 and a controller seat 25 are fixedly installed inside the motor cover 21, the air guide cover 24 and the motor 23 are coaxially arranged, the motor 23 is set as a brushless DC outer rotor motor, a motor controller 26 is fixedly installed on the controller seat 25, and the motor controller 26 is connected to the female socket 2 2 is electrically connected, the motor controller 26 is electrically connected to the motor 23, that is, the battery pack 4 can provide the required electric energy to the motor 23 through the power line 3, the female socket 22 and the motor controller 26, and the motor controller 26 is used to control the speed of the motor 23, and no gasoline-powered engine power structure is required, so it can well replace the gasoline garden tools originally used in wide-band trimmers, high-branch saws, grass trimmers, sprayers, ground drills, etc., which are powered by engines, energy-saving and environmentally friendly, and its structure is simple and compact, easy to assemble and maintain, small in size and light in weight, the output shaft of the motor 23 is fixedly installed with a motor cover 21, and the end thereof is fixedly installed with a rear cover 27, and a motor spline output shaft 231 is provided on the motor 23;

[0022] A plurality of air inlets 271 are provided at the edge of the rear cover 27, air outlets 211 are symmetrically provided at the side of the motor cover 21, and air guides 241 are symmetrically provided at both sides of the air guide cover 24, and the air guides 241 are correspondingly connected with the air outlets 211. When the motor 23 is working and rotating, the fan blades (not marked in the figure) on the motor 23 are driven to rotate, generating negative pressure, sucking cold air from the air inlet 271 at the edge of the rear cover 27, flowing into the surface gap of the motor 23 and the inner cavity of the air guide cover 24 through the motor controller 26, and then flowing out from the air guide 241 on the air guide cover 24 and the matching air outlets 211 on both sides of the motor cover 21, thereby heat dissipating the motor 23 and the motor controller 26 well;

[0023] A garden tool, comprising a trimmer body 1 and a connecting plate 11 arranged at the end of the trimmer body 1. It should be noted that the trimmer body 1 is a well-known technology for those skilled in the art and will not be described in detail. It also comprises the above-mentioned power head, the end of the motor cover 21 is fixedly connected to the end of the connecting plate 11 away from the trimmer body 1 by bolts. It should be noted that the installation size of the port of the connecting plate 11 corresponds to the size of the installation surface of the end of the motor cover 21 on the power head 2, and the motor spline output shaft 231 is connected with the trimmer body 1 spline transmission matching connection, and the motor spline output shaft 231 is connected with the spline coupling (not shown in the figure) on the transmission shaft in the trimmer body 1 to transmit power to the trimmer body 1, that is, the power head 2 is installed on the trimmer body 1 to provide driving force for the trimmer body 1, so as to drive the trimmer to trim fences and branches, and by removing the bolts fixing the power head 2, the power head 2 can be removed from the trimmer body 1 as a whole, and the disassembly and assembly are convenient, and the original power can be quickly replaced and replaced, which is convenient to use;

[0024] It should be noted that, in the present invention, the garden tool may be a pruning machine, and the power head 2 is installed on the pruning machine. Of course, the garden tool may also be other types of garden tools such as a high-branch saw, which is not limited here.

[0025] The above is only a preferred embodiment of the utility model. Any person skilled in the art can modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.

Claims

1. A power head, comprising a power head (2), a power cord (3) and a battery pack (4), characterized in that: The power head (2) comprises a motor cover (21), a mounting hole (212) is provided on the side of the motor cover (21), a female socket (22) is fixedly installed in the mounting hole (212), the battery pack (4) is electrically connected to the female socket (22) through a power line (3), a motor (23), an air guide cover (24) and a controller seat (25) are fixedly installed inside the motor cover (21), the air guide cover (24) and the motor (23) are coaxially arranged, a motor controller (26) is fixedly installed on the controller seat (25), the motor controller (26) is electrically connected to the female socket (22), the motor controller (26) is electrically connected to the motor (23), the output shaft of the motor (23) is fixedly installed with the motor cover (21), a rear cover (27) is fixedly installed at the end thereof, and a motor spline output shaft (231) is arranged on the motor (23).

2. A power head according to claim 1, characterized in that: The motor (23) is configured as a brushless DC external rotor motor, the motor controller (26) is used to control the rotation speed of the motor (23), and the battery pack (4) is configured as a lithium battery pack.

3. A power head according to claim 1, characterized in that: The edge of the rear cover (27) is provided with a plurality of air inlets (271), the side of the motor cover (21) is symmetrically provided with air outlets (211), and the two sides of the air guide cover (24) are symmetrically provided with air guide ports (241), and the air guide ports (241) are correspondingly connected to the air outlets (211).

4. A garden tool, comprising a trimmer body (1) and a connecting plate (11) arranged at the end of the trimmer body (1), characterized in that: It also includes a power head as described in any one of claims 1 to 3, wherein the end of the motor cover (21) is fixedly connected to the end of the connecting plate (11) away from the trimmer body (1) by bolts, and the motor spline output shaft (231) is connected to the trimmer body (1) by spline transmission.

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