Electric starting chain saw

Abstract

The utility model relates to an electric starting chain saw, which at least solves the problem that the electric starting mechanism of the existing chain saw on the market is not easy to use, and comprises a chain saw main body, the chain saw main body is provided with a chain saw mechanism and an engine unit for providing power for the chain saw mechanism, and the power output end of the engine unit is in transmission connection with the chain saw mechanism. A magneto-electric starting mechanism is arranged on the chain saw body and comprises an ignition assembly used for igniting the engine unit and a driving motor matched with the ignition assembly.

Description

TECHNICAL FIELD

[0001] The application relates to an electrically started oil saw. BACKGROUND

[0002] The existing magnetoelectric mechanism for engine ignition of an oil saw is generally an outer rotor type magnetoelectric mechanism, such as the magnetoelectric mechanism disclosed in the Chinese Utility Model Patent with the authorization announcement No. CN201766477U, which is composed of a rotor assembly and a stator assembly, wherein the stator assembly comprises a fixed base plate, a power coil, an ignition coil and an igniter, the power coil and the ignition coil are assembled on the fixed base plate, and then the fixed base plate is fixedly installed on the box body of the engine; the rotor assembly is installed on the crankshaft of the engine and rotates with the crankshaft; the rotor assembly comprises a rotor, a magnetic pole core and a magnetic steel; through the rotation of the rotor assembly, the magnetic force lines of the rotating magnetic poles of the rotor assembly are cut by the stator assembly, so that the electric current is induced on the power coil, thereby causing the secondary induction of the ignition coil to generate high voltage output greater than 20KV to ignite the engine.

[0003] In the above structure, the rotor assembly is generally driven to rotate by pulling the rope with the hand, that is, the rope is wound on the rotor assembly, and the rotor assembly is driven to rotate by pulling the rope with the hand; the ignition is relatively laborious.

[0004] The Chinese Utility Model Patent with the authorization announcement No. CN220151463U discloses an electrically started oil saw, wherein an engine and a flywheel synchronously rotating with the engine are arranged in the oil saw body; a rope wheel is arranged on the outer side of the flywheel; a starting disc is arranged on the flywheel; the rope wheel drives the starting disc to rotate in one direction when the rope wheel rotates; the oil saw body is provided with a starting motor driving the starting disc and a reset switch controlling the starting motor to start and stop; when the starting motor is started, the starting disc is driven to rotate, and the flywheel connected with the starting disc is also synchronously rotated; when the rotating speed exceeds the minimum ignition rotating speed of the flywheel, the engine can be normally ignited and operated, and the engine can be rapidly started; the engine can be started by using the hand rope, and the user can flexibly select the motor starting mode and the hand rope starting mode according to the actual situation.

[0005] The problem of the above structure is that the structure is complex, the parts are relatively more, and the volume of the oil saw is relatively large. SUMMARY

[0006] The application aims to provide an electrically started oil saw to at least solve the problem that the electric starting mechanism of the oil saw on the market is not good.

[0007] In order to achieve the above object, the application provides an electrically started oil saw, comprising an oil saw body, a chain saw mechanism and an engine set for providing power for the chain saw mechanism, a transmission connection between a power output end of the engine set and the chain saw mechanism, a magneto electric starting mechanism on the oil saw body, the magneto electric starting mechanism comprising an ignition assembly for igniting the engine set and a driving motor matched with the ignition assembly, and electromagnetic induction between the driving motor and the ignition assembly when the driving motor works to realize discharge ignition of the ignition assembly.

[0008] Preferably, the magneto electric starting mechanism comprises an ignition assembly for igniting the engine set and a driving motor matched with the ignition assembly through a coupling mechanism, and electromagnetic induction between the driving motor and the ignition assembly through the coupling mechanism when the driving motor works to realize discharge ignition of the ignition assembly.

[0009] Preferably, the engine set is provided with an initial power input shaft, the driving motor comprises a stator assembly installed in the oil saw body and a rotor assembly fixedly connected with the initial power input shaft and rotatable relative to the stator assembly, rotation of the rotor assembly is realized through electromagnetic induction cooperation between the stator assembly and the rotor assembly, and the coupling mechanism is arranged between the rotor assembly and the ignition assembly.

[0010] Preferably, the rotor assembly comprises a rotor shell sleeved outside the stator assembly and a flywheel assembly integrally or separately fixed on the rotor shell, and the coupling mechanism is arranged between the flywheel assembly and the ignition assembly.

[0011] Preferably, the initial power input shaft passes through the stator assembly, the stator assembly is provided with a through hole for the initial power input shaft to pass through, and there is a gap between the inner wall of the through hole and the initial power input shaft.

[0012] Preferably, the flywheel assembly comprises a flywheel integrally or separately arranged on the outer wall of the rotor shell.

[0013] Preferably, the flywheel is provided with a fan blade.

[0014] Preferably, the outer side of the flywheel assembly is provided with a flow guide cover.

[0015] Preferably, the oil saw body is provided with a hand starting assembly, and the hand starting assembly and the driving motor are connected through a one-way transmission mechanism.

[0016] Preferably, the oil saw body is provided with a rope wheel, the rope wheel is provided with a pull rope assembly, and the rope wheel and the rotor assembly of the driving motor are connected through a one-way transmission mechanism.

[0017] Preferably, the chainsaw body is provided with a reset disc for automatically resetting the rope wheel.

[0018] Preferably, the rear end of the handle of the chainsaw body is provided with a detachable battery pack.

[0019] Preferably, a socket is arranged on the rear end face of the handle, and the battery pack is inserted into the socket and clamped in the socket.

[0020] According to the above, the beneficial effects of the present application are:

[0021] The present application sets a driving motor on the chainsaw body, and cooperates the driving motor with the ignition device. When the driving motor works, on one hand, it provides the initial power source for the starting process of the engine group, and on the other hand, it cooperates with the ignition assembly through the coupling mechanism and the electromagnetic induction to make the ignition assembly ignite. Thus, the chainsaw has the advantages of compact and simple structure, small size and low cost. BRIEF DESCRIPTION OF DRAWINGS

[0022] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The illustrative embodiments of the present application and their description serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 is a schematic diagram of the overall structure of the present application;

[0024] Figure 2 is a schematic diagram of the local structure of the present application Figure One ;

[0025] Figure 3 is a schematic diagram of the local structure of the present application Figure Two ;

[0026] Figure 4 is a schematic diagram of the structure of the driving motor of the present application Figure One ;

[0027] Figure 5 is a schematic diagram of the structure of the driving motor of the present application Figure Two ;

[0028] Figure 6 is an exploded view of the driving motor of the present application;

[0029] Figure 7 is a schematic diagram of the local structure of the present application Figure Three . DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present application more clear and explicit, the present application is described and explained below in combination with the drawings and embodiments.

[0031] It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments provided herein without inventive effort are within the scope of protection of this application. Furthermore, it is understood that although the effort involved in such development may be complex and lengthy, for those skilled in the art related to the content disclosed herein, modifications to design, manufacturing, or production based on the technical content disclosed herein are merely conventional technical means and should not be construed as insufficient disclosure of this application.

[0032] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0033] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "a," "an," "an," "the," and similar words used in this application do not indicate quantity limitation and may indicate singular or plural. The terms "comprising," "including," "having," and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units not listed, or may include other steps or units inherent to these processes, methods, products, or devices. The terms "connected," "linked," "coupled," and similar terms used in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Multiple" in this application means two or more. " / " and "and / or" describe the relationship between related objects; " / " means "or," for example, "A / B" can mean: A exists alone or B exists alone; "and / or" indicates that three relationships can exist, for example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, and B exists alone. The terms "first," "second," "third," etc., used in this application are merely to distinguish similar objects and do not represent a specific ordering of objects.

[0034] See Figures 1 to 7The electric starting oil saw mainly comprises an oil saw main body 5, the oil saw main body is provided with a chain saw mechanism 51 and an engine set 52 for providing power for the chain saw mechanism, the power output end of the engine set and the chain saw mechanism are connected through a transmission mechanism, the oil saw main body is provided with a magneto electric starting mechanism, the magneto electric starting mechanism comprises an ignition assembly 6 for igniting the engine set and a driving motor matched with the ignition assembly, when the driving motor works, electromagnetic induction is generated between the driving motor and the ignition assembly, thereby realizing discharge ignition of the ignition assembly.

[0035] A detachable battery pack 7 is arranged at the rear end of the handle 53 of the oil saw main body. Specifically, a socket is arranged at the rear end of the handle with the socket opening upward, the battery pack is clamped in the socket after being inserted into the socket, the battery pack can adopt a common rechargeable battery, and after being detached, the battery pack can be replaced or charged. In addition, since the battery pack is detachably connected, the battery pack can be configured to be adapted to the battery pack of other models of electric tools, and the user can install the battery pack of other electric tools on the oil saw for use. The driving motor is provided with electric energy by the battery pack 7, and the handle is provided with a channel for the wire connected with the battery pack to pass through.

[0036] The magneto electric starting mechanism comprises an ignition assembly for igniting the engine set and a driving motor matched with the ignition assembly through a coupling mechanism, when the driving motor works, electromagnetic induction is generated between the driving motor and the ignition assembly through the coupling mechanism, thereby realizing discharge ignition of the ignition assembly.

[0037] The driving motor mainly comprises a stator assembly and a rotor assembly sleeved outside the stator assembly and rotatable relative to the stator assembly, the stator assembly comprises a stator core 1, the stator core is provided with a coil winding (not shown in the figure) in a stator slot 11 of the stator core, the rotor assembly comprises a rotor shell 2, a rotor 21 is embedded on the inner wall of the rotor shell, a magnetic steel 22 is arranged on the rotor, the magnetic steels are uniformly and spacedly embedded on the inner wall of the rotor, after the coil winding is electrified, electromagnetic induction is generated between the stator assembly and the rotor assembly, thereby realizing rotation of the rotor assembly. The stator assembly and the rotor assembly can also be arranged with magnetic steels and coil windings respectively to realize relative rotation between the stator assembly and the rotor assembly, which are all prior arts.

[0038] The engine set is provided with an initial power input shaft 23 passing through the stator core of the stator assembly, the rotor housing is fixedly connected to the initial power input shaft in the circumferential direction, the relative positioning in the circumferential direction and the mutual separation prevention in the axial direction between the rotor housing and the initial power input shaft at one end of the initial power input shaft are achieved through the key connection, the stator core of the stator assembly is provided with a through hole 12 for the initial power input shaft to pass through, the gap for accommodating lubricating oil (grease, oil, etc.) is formed between the inner wall of the through hole and the initial power input shaft, and the oil seal mechanism is arranged on the side of the stator assembly away from the rotor assembly.

[0039] Specifically, the oil seal mechanism includes an oil seal plate 3 sleeved on the initial power input shaft, and the oil seal plate and the stator assembly are circumferentially positioned by at least a positioning pin (not shown in the figure). Preferably, in the embodiment, the oil seal plate is provided with a screw hole 31 for the positioning pin to pass through, and the inner wall of the through hole of the stator core of the stator assembly is provided with a positioning groove 13 matched with the positioning pin.

[0040] The flywheel assembly is integrally or separately fixed on the rotor housing, the flywheel assembly includes a flywheel 4 integrally or separately arranged on the outer wall of the rotor housing, the flywheel is provided with a fan blade 41, and the flywheel assembly is provided with a coupling mechanism 42 for cooperating with the ignition assembly to make the ignition assembly ignite.

[0041] The coupling mechanism is a magnetic coupling mechanism arranged between the rotor assembly and the ignition assembly, specifically, the ignition assembly includes an ignition coil and an igniter, the coupling mechanism includes a power coil arranged on the ignition assembly and a magnetic pole core and a magnetic steel arranged on the rotor assembly, through the rotation of the rotor assembly, the ignition assembly cuts the magnetic force lines of the rotating magnetic poles of the magnetic coupling mechanism, and the current is induced on the power coil, so that the ignition coil discharges to ignite.

[0042] The outer side of the flywheel assembly is provided with a flow guide cover 54 to facilitate the discharge of debris and impurities to the outside when the rotor assembly rotates.

[0043] The chainsaw body is provided with a hand starting assembly, and the hand starting assembly and the driving motor are connected through a one-way transmission mechanism. Specifically, the chainsaw body is provided with a rope wheel 55 and a reset disc 56 with a coil spring inside for resetting the rope wheel. The rope wheel is provided with a pull rope assembly, and only a pull rope handle 57 is shown in the figure. The rope wheel and the rotor assembly of the driving motor are connected through a one-way transmission mechanism. In this embodiment, the one-way transmission mechanism includes a pawl 58 arranged on the side of the rope wheel and the rotor housing of the driving motor towards the rope wheel, and a ratchet disc 59 arranged on the side of the rope wheel towards the rotor housing. When the rope wheel or the rotor assembly rotates in one direction, the pawl and the ratchet on the ratchet disc cooperate to link the rotor assembly to rotate and drive the initial power input shaft to work. When the rope wheel or the rotor assembly rotates in the opposite direction, the pawl and the ratchet on the ratchet disc disengage to form idling.

[0044] In this embodiment, the initial power input shaft can be the left crank of the engine set, and the power output end of the engine set can be the right crank of the engine set.

[0045] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An electrically activated chainsaw comprising a chainsaw body provided with a chainsaw mechanism and an engine set for powering the chainsaw mechanism, the engine set being drivingly connected between a power output end of the engine set and the chainsaw mechanism, characterized in that, The chainsaw body is provided with a magneto electric starting mechanism, which comprises an ignition assembly for igniting the engine set and a driving motor matched with the ignition assembly.

2. The electrically activated chainsaw of claim 1, wherein, The rotor assembly comprises a rotor shell sleeved outside the stator assembly and an integral or split flywheel assembly fixed to the rotor shell.

3. The electrically activated chainsaw of claim 1, wherein, The initial power input shaft passes through the stator assembly, and the stator assembly is provided with a through hole for the initial power input shaft to pass through.

4. The electrically initiated chainsaw of claim 2, wherein, The flywheel assembly comprises an integral or split flywheel provided on the outer wall of the rotor shell.

5. An electrically initiated chainsaw according to claim 4, characterized in that The flywheel is provided with a fan blade.

6. An electrically initiated chainsaw according to claim 2 or 4 or 5, characterized in that, The outer side of the flywheel assembly is provided with a fairing.

7. An electrically initiated chainsaw according to any of claims 1-5, characterized in that The chainsaw body is provided with a hand starting assembly, and the hand starting assembly and the driving motor are connected through a one-way transmission mechanism.

8. An electrically-started chainsaw according to any of claims 1-5, characterized in that The chainsaw body is provided with a rope wheel, and the rope wheel is provided with a pull rope assembly.

9. An electrically initiated chainsaw according to any of claims 1-5, characterized in that The handle rear end of the chainsaw body is provided with a detachable battery pack; and / or the rear end of the handle of the chainsaw body is provided with a socket with the socket opening upward, and the battery pack is clamped in the socket after being inserted into the socket.

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