CN109698293B

CN109698293B - Battery pack detachably mounted on machine tool and gardening tool with same

Info

Publication number: CN109698293B
Application number: CN201810720022.3A
Authority: CN
Inventors: 孔钊; 卞小贤; 魏娟; 张添荣; 尹维瑞
Original assignee: Suzhou Cleva Precision Machinery and Technology Co Ltd
Current assignee: Suzhou Cleva Precision Machinery and Technology Co Ltd
Priority date: 2017-10-24
Filing date: 2018-07-03
Publication date: 2024-07-05
Anticipated expiration: 2038-07-03
Also published as: CN109698293A; CN109698304B; CN109691286A; CN208706703U; CN109698304A; CN109691291A; CN208706749U; CN208706704U; CN208807090U; CN208434328U; CN209418589U; CN208370243U; CN208706706U

Abstract

The invention provides a battery pack detachably mounted on a machine tool, which comprises a shell and a control panel unit arranged in the shell; the shell comprises a holding part and an operating part, and a cavity for detachably mounting the battery pack is arranged in the shell; the control panel unit comprises a base plate and an electrode frame fixedly connected with the base plate; the battery pack is configured to be inserted into the cavity, and terminals which are matched with the electrode frames to realize the electric connection between the battery pack and the substrate are respectively arranged on two opposite side surfaces of the battery pack. The invention also provides a gardening tool with the battery pack. According to the invention, the battery pack is mounted on the control panel unit, so that the battery pack is fixed relative to the base plate, and the influence of vibration when a tool is used is avoided; through setting up battery package mounting structure and operating portion in the handle subassembly, carry out the operation of instrument when conveniently gripping, its compact structure, wiring are simple, the equipment is simple and convenient, use reliably.

Description

Battery pack detachably mounted on machine tool and gardening tool with same

Technical Field

The invention relates to a battery pack detachably mounted on a machine tool and a gardening tool with the battery pack.

Background

In garden tools, the structure commonly used is that a battery pack and a main control circuit board are separately arranged on the whole machine, and some batteries are arranged in a handle and are not detachable, so that the manufacturing and the assembly are relatively troublesome. In particular to an electric starting engine grass cutting machine and a blowing and sucking machine, which take a gasoline engine as a power source, and an electric starting system is arranged, and a battery pack and a control panel are both arranged on an engine mechanism so as to conveniently supply power to the electric starting system. However, during use, the engine vibrates and generates a lot of heat, and exhaust gas is discharged, which may affect the battery pack and the control board, resulting in malfunction of the gardening tool, thereby affecting the service life.

Accordingly, there is a need for improvements in the art to address the above-described problems.

Disclosure of Invention

The invention aims to provide a battery pack detachably mounted on a machine tool, which is convenient to mount and reliable to use.

Another object of the present invention is to provide a gardening tool which is structurally reliable and has a long service life.

In order to achieve the above object, the present invention provides a battery pack detachably mounted on a machine tool including a housing and a control board unit disposed in the housing; the shell comprises a holding part and an operating part, and a cavity for detachably mounting the battery pack is arranged in the shell; the control panel unit comprises a base plate and an electrode frame fixedly connected with the base plate; the battery pack is configured to be inserted into the cavity, and terminals which are matched with the electrode frames to realize the electric connection of the battery pack and the substrate are respectively arranged on two opposite side surfaces of the battery pack.

As an improvement of one specific embodiment of the invention, the terminals comprise a first battery terminal and a second battery terminal; the first terminal and the second terminal of the battery are respectively arranged at the end parts of the two opposite side surfaces of the battery pack.

As an improvement of a specific embodiment of the invention, the end part of the battery pack, which is adjacent to the first terminal of the battery and the second terminal of the battery, is provided with a third terminal of the battery.

As an improvement of a specific embodiment of the invention, the battery pack is further provided with at least one temperature sensor electrically connected with the battery control panel respectively.

As an improvement of a specific embodiment of the invention, the battery pack comprises a battery pack shell and a battery core arranged in the battery pack shell, wherein the battery pack shell comprises an upper cover and a lower cover which are connected in a buckled mode, and the axis of the battery core is consistent with the insertion direction of the battery pack.

As an improvement of a specific embodiment of the present invention, the battery pack further includes a charging port, the charging port is disposed on a bottom side surface of the battery pack, a battery control board is disposed in the battery pack housing, the charging port includes a charging negative electrode port and a charging positive electrode port which are electrically connected with the battery control board respectively, the charging negative electrode port and the charging positive electrode port are disposed at intervals, and an outer contour of the charging negative electrode port is different from an outer contour of the charging positive electrode port.

As an improvement of one embodiment of the present invention, the battery pack further includes a vibration damping member made of an elastic material.

As an improvement of a specific embodiment of the invention, a battery operating mechanism is arranged on the shell, the operating mechanism comprises an operating key and a reset piece for pressing the operating key, a groove part matched with the operating key is arranged on the battery pack, and the operating key is clamped with the groove part under the action of the reset piece to lock the battery pack in the cavity.

As an improvement of a specific embodiment of the invention, the electrode frame comprises a body fixed on the base plate and clamping feet extending downwards along two ends of the body, the clamping feet extend into the cavity, and the battery pack is arranged in the cavity and matched with the clamping feet to realize electric connection with the control board unit.

The invention also provides a battery pack detachably mounted on the machine tool, the battery pack comprises a charging port, the charging port comprises a charging negative electrode port and a charging positive electrode port, the charging negative electrode port and the charging positive electrode port are arranged at intervals, and the outer contour of the charging negative electrode port is different from the outer contour of the charging positive electrode port.

As an improvement of one specific embodiment of the present invention, the charging port is disposed at a bottom side surface of the battery pack.

As an improvement of a specific embodiment of the invention, a battery control board is arranged in the battery pack shell, and the charging negative electrode port and the charging positive electrode port are respectively and electrically connected with the battery control board.

As an improvement of a specific embodiment of the invention, the machine tool comprises a shell and a control panel unit arranged in the shell; the shell comprises a holding part and an operating part, and a cavity for detachably mounting the battery pack is arranged in the shell; the control panel unit comprises a base plate and an electrode frame fixedly connected with the base plate; the battery pack is configured to be inserted into the cavity, and terminals which are matched with the electrode frames to realize the electric connection of the battery pack and the substrate are respectively arranged on two opposite side surfaces of the battery pack.

The invention also provides a battery pack detachably mounted on the machine tool, the battery pack comprises a vibration reduction piece made of elastic material, and the vibration reduction piece comprises a first vibration reduction piece; the battery pack comprises a battery pack shell and a battery core arranged in the battery pack shell, wherein the battery pack shell comprises an upper cover and a lower cover which are connected in a buckled manner; the machine tool comprises a shell, wherein a cavity for detachably mounting a battery pack is arranged in the shell; the first vibration reduction piece comprises a first outer end protruding out of the outer surface of the lower cover at least partially and a first inner end protruding out of the inner surface of the lower cover at least partially, and the inner end surface of the first inner end is abutted against the battery cell; when the battery pack is arranged in the cavity, the outer end face of the first outer end abuts against the inner wall of the cavity, and the first vibration reduction piece is clamped between the inner wall of the cavity and the battery cell.

As an improvement of a specific embodiment of the invention, at least two first vibration reduction pieces are arranged on the left side surface and the right side surface of the battery pack.

As an improvement of a specific embodiment of the present invention, the first outer end of the first vibration damping member is smaller than the first inner end of the first vibration damping member.

As an improvement of one embodiment of the present invention, the battery pack includes a vibration damping member made of an elastic material, and the vibration damping member includes a first vibration damping member; the battery pack comprises a battery pack shell and a battery core arranged in the battery pack shell, wherein the battery pack shell comprises an upper cover and a lower cover which are connected in a buckled manner; the machine tool comprises a shell, wherein a cavity for detachably mounting a battery pack is arranged in the shell; the second vibration reduction piece is embedded in the top side surface of the battery pack, comprises a second outer end at least partially protruding out of the outer surface of the lower cover, and also comprises a second inner end at least partially protruding out of the inner surface of the lower cover, wherein an inner end surface of the second inner end is provided with an arc surface corresponding to the radian of the outer surface of the battery cell, and the arc surface is propped against the battery cell; when the battery pack is arranged in the cavity, the outer end face of the second outer end abuts against the inner wall of the cavity, and the second vibration reduction piece is clamped between the inner wall of the cavity and the battery cell.

As an improvement of a specific embodiment of the invention, at least one second vibration reduction piece is arranged on the top side surface of the battery pack.

As an improvement of a specific embodiment of the present invention, the second outer end of the second vibration damping member is smaller than the second inner end of the second vibration damping member.

The invention also provides a battery pack detachably mounted on the machine tool, the machine tool comprises a shell, and a cavity for detachably mounting the battery pack is arranged in the shell; the battery pack is characterized in that the shell is also provided with a battery operating mechanism, the operating mechanism comprises an operating key and a reset piece for pressing the operating key, the battery pack is provided with a groove part matched with the operating key, and the operating key is clamped with the groove part under the action of the reset piece to lock the battery pack in the cavity; the operation key comprises a hook part matched with the groove part, the groove part comprises a first groove and a second groove which can be matched with the hook part, the first groove is closer to the extending end of the battery pack than the second groove, and when the hook part is clamped into the first groove, the battery pack is locked and installed in the cavity; when the hook part is clamped into the second groove, the battery pack can be pulled out of the cavity.

As an improvement of a specific embodiment of the invention, the operation key further comprises a pressing part far away from the hook part and a rotating shaft positioned between the hook part and the pressing part, the reset piece props against the pressing part to enable the hook part to keep clamping connection with the groove part, and the battery pack is locked relative to the cavity; the pressing part can be operated to overcome the acting force of the resetting piece to separate the hook part from the groove part, and the battery pack is unlocked relative to the cavity.

As an improvement of a specific embodiment of the invention, the back wall of the cavity is provided with an elastic piece, the battery pack is locked relative to the cavity, and the battery pack presses against the elastic piece and enables the elastic piece to store energy; the battery pack is unlocked relative to the cavity, and the elastic force of the elastic piece is released to drive the battery pack to move outside the cavity.

As an improvement of one embodiment of the present invention, the elastic member is configured as a cavity third terminal.

As an improvement of a specific embodiment of the present invention, a side wall of the first groove away from the protruding end of the battery pack is a plane, an included angle between the side wall and the top side surface of the battery pack is not more than 90 °, or the side wall is a curved surface, and a minimum included angle between a tangential plane of the side wall and the top side surface of the battery pack is not more than 90 °.

As an improvement of a specific embodiment of the present invention, a side wall of the second groove away from the protruding end of the battery pack is a plane, an included angle between the side wall and the top side surface of the battery pack is not less than 120 °, or the side wall is a curved surface, and a maximum included angle between a tangential plane of the side wall and the top side surface of the battery pack is not less than 120 °.

The invention also provides a battery pack mounting structure detachably mounted on the machine tool, the machine tool comprises a shell and a control panel unit arranged in the shell, and a cavity for detachably mounting the battery pack is arranged in the shell; the control panel unit comprises a base plate and an electrode frame fixedly connected with the base plate; the battery pack is configured to be inserted into the cavity, and terminals which are matched with the electrode frames to realize the electric connection of the battery pack and the substrate are respectively arranged on two opposite side surfaces of the battery pack. The electrode frame comprises a body fixed on the base plate and clamping pins extending downwards along two ends of the body, the clamping pins extend into the cavity, and the battery pack is arranged in the cavity and matched with the clamping pins to realize electric connection with the control panel unit.

As an improvement of a specific embodiment of the invention, the cavity comprises an opening, a front cavity communicated with the opening and an opposite rear cavity, the clamping pin is positioned in the rear cavity, the front cavity comprises an opening part communicated with the direction perpendicular to the installation direction of the battery pack, the battery pack is installed in the cavity, and a part of the side wall of the battery pack is exposed from the opening part.

As an improvement of one embodiment of the present invention, the side wall of the battery pack is provided with an encapsulation, which is exposed from the opening portion.

As an improvement of a specific embodiment of the invention, the clamping feet at two ends of the body are correspondingly provided with a clamping foot first terminal and a clamping foot second terminal which protrude into the cavity, the battery pack is provided with a battery first terminal and a battery second terminal which are respectively matched with the clamping foot first terminal and the clamping foot second terminal, and the battery first terminal and the battery second terminal are respectively arranged at two sides of the end part of the battery pack.

As an improvement of a specific embodiment of the invention, a guide groove is arranged on one of the battery pack and the side wall of the cavity, a guide protrusion is arranged on the other of the battery pack and the inner wall of the cavity, the battery pack is installed in the cavity through the cooperation of the guide groove and the guide protrusion, and the guide groove or the guide protrusion corresponds to the first terminal of the battery and/or the second terminal of the battery.

As an improvement of a specific embodiment of the invention, the rear wall of the cavity is provided with a cavity third terminal, the end part of the battery pack adjacent to the first battery terminal and the second battery terminal is provided with a battery third terminal matched with the cavity third terminal, and the control panel unit is connected with the detection module in the battery pack through the matching of the cavity third terminal and the battery third terminal.

As an improvement of a specific embodiment of the invention, a third guiding protrusion is arranged on one of the lower wall of the cavity and the battery pack, a third guiding groove matched with the third guiding protrusion is arranged on the other of the lower wall of the cavity and the battery pack, and the third guiding protrusion or the third guiding groove corresponds to the position of a third terminal of the cavity or a third terminal of the battery.

As an improvement of a specific embodiment of the invention, the electrode frame is installed in the shell, a concave part is arranged in the shell, and two clamping feet of the electrode frame are clamped in the concave part.

As an improvement of a specific embodiment of the invention, the electrode frame is fixedly connected with the base plate through a third fixing piece.

As an improvement of a specific embodiment of the present invention, the third fixing member is a rivet.

As an improvement of a specific embodiment of the invention, the substrate is provided with a substrate positioning hole, the body of the electrode frame is provided with a substrate positioning column, and the substrate positioning hole is matched with the substrate positioning column and is used for positioning the electrode frame and the substrate.

The invention also provides a garden tool, which comprises a working mechanism and a power mechanism, wherein the power mechanism comprises a gasoline engine, the gasoline engine comprises an electric starting system, the electric starting system comprises a starting motor, and the garden tool further comprises the battery pack or the battery pack mounting structure; the battery pack supplies power for the starting motor.

As an improvement of one embodiment of the invention, the garden tool is an electric starting engine grass cutter or an electric starting gasoline blowing and sucking machine.

As an improvement of a specific embodiment of the invention, the opening of the cavity faces the working mechanism.

As an improvement of a specific embodiment of the invention, the gasoline engine further comprises one or more of an electronic fuel injection system, an electronic ignition system and an automatic air door system, and the battery pack supplies power for one or more of the electronic fuel injection system, the electronic ignition system and the automatic air door system.

From the above technical solutions, the present invention has a plurality of outstanding substantial technical features, and after implementing the technical solutions of the present invention, the significant technical progress is mainly:

(1) Through installing the control panel unit with the battery package, realize the battery package for the fixed of base plate, can not receive the influence of vibration when the instrument uses, can protect battery package and control panel unit, prevent the instrument trouble that consequently leads to can't use, this battery package mounting structure is compact moreover, can also realize the dismouting battery package of singlehanded to user's use is more convenient.

(2) Through setting up battery package mounting structure in handle subassembly, and operating portion also sets up at handle subassembly, can carry out the operation of instrument when gripping, sets up battery package, control panel unit and operating portion together moreover, reduces the trouble of wiring, and the equipment is simpler and more convenient, and is with low costs to use reliably simultaneously.

Drawings

FIG. 1 is a schematic perspective view of a grass trimmer in accordance with a preferred embodiment of the present invention;

FIG. 2 is a front view of the handle assembly of the lawnmower of FIG. 1;

FIG. 3 is an exploded isometric view of the handle assembly of FIG. 2;

FIG. 4 is a left side view of the handle assembly of FIG. 2 with the battery pack mounted within the cavity;

FIG. 5 is similar to FIG. 4 with the battery pack removed from the cavity;

FIG. 6 is a schematic perspective view of the control panel unit in the handle assembly of FIG. 3;

fig. 7 is a perspective view of an electrode holder in the control board unit of fig. 6;

FIG. 8 is an exploded isometric view of the battery pack of the handle assembly of FIG. 3;

Fig. 9 is a schematic top view of the lower cover of the battery pack of fig. 8;

FIG. 10 is a top view of the handle assembly of FIG. 2;

FIG. 11 is a cross-sectional view of the handle assembly of FIG. 10 taken along line A-A with the battery pack in a locked condition;

FIG. 12 is an enlarged schematic view of portion a of FIG. 11;

FIG. 13 is similar to FIG. 11, with the battery pack in an unlocked state;

FIG. 14 is an enlarged schematic view of portion b of FIG. 13;

FIG. 15 is a schematic view of a blower in accordance with a second preferred embodiment of the present invention;

FIG. 16 is a view of the battery pack of FIG. 15 separated from the blower body;

fig. 17 is a partial cross-sectional view of the battery pack and the battery mounting portion of fig. 15 (a state in which the hook portion is engaged in the first groove);

fig. 18 is a partial cross-sectional view of the battery pack and the battery mounting portion of fig. 15 (with the hook portion engaged in the second groove);

fig. 19 is a partial cross-sectional view of the battery pack and the battery mounting portion of fig. 15 (with the battery pack extracted from the cavity);

FIG. 20 is an enlarged schematic view of portion c of FIG. 19;

Fig. 21 is a partial cross-sectional view of the battery pack and battery mounting portion of fig. 15 from another perspective;

FIG. 22 is an enlarged schematic view of section f of FIG. 21;

FIG. 23 is an assembled view of a substrate and an electrode holder in accordance with a second preferred embodiment of the present invention;

FIG. 24 is an exploded view of a substrate and electrode holder in accordance with a second preferred embodiment of the present invention;

FIG. 25 is a front view of an electrode holder in a second preferred embodiment of the present invention;

FIG. 26 is a top view of an electrode holder in a second preferred embodiment of the present invention;

fig. 27 is a schematic view of a battery pack in a second preferred embodiment of the present invention;

fig. 28 is a schematic view of a battery pack according to another preferred embodiment of the present invention;

Fig. 29 is a right side view of a battery pack in a second preferred embodiment of the present invention;

fig. 30 is a bottom side view of a battery pack in a second preferred embodiment of the present invention;

FIG. 31 is an enlarged schematic view of section d of FIG. 30;

FIG. 32 is a cross-sectional view taken along the direction B-B in FIG. 29;

FIG. 33 is a schematic view of a second vibration damping member according to a second preferred embodiment of the present invention;

FIG. 34 is a cross-sectional view taken along the direction C-C in FIG. 29;

FIG. 35 is a schematic view of a first vibration damping member according to a second preferred embodiment of the present invention;

Fig. 36 is a schematic view of a battery pack with a cover removed in accordance with a second preferred embodiment of the present invention.

In the figure:

100-grass cutting machine; 11-a working mechanism; 12-a power mechanism; 13-a connecting rod assembly; 14-an auxiliary handle;

20-a handle assembly; 201-a housing; 202-front mechanical connection port; 203-a rear mechanical connection port; 21-a grip; 211-handle encapsulation; 22-an operation part; 220-flameout key; 221-throttle key; 222-throttle lock key; 224—total on-off key; 225-ignition key; 226-activating a switch; 227-activating a switch;

30-a battery mounting portion; 31-a substrate; 311-electrode holes; 312-substrate positioning holes; 312 a-substrate positioning posts; 32-electrode holders; 320 a-body; 320 b-clamping pins; 321-clamping the first terminal; 3211-a first electrode tab; 3212-a first contact; 322-a clip second terminal; 3221-a second electrode insert; 3222-a second contact; 323-a cavity third terminal; 3231-wire portion; 3232—a spring portion; 324-a first fixing member; 325-a second securing member; 326-a third mount; 326 a-rivet hole; 33-terminal mounting slots; 34-recesses; 35-a cavity; 350-opening; 350 a-anterior chamber; 350 b-rear cavity; 351-guiding protrusions; 352-guide projection; 353-third guide projection;

50-battery pack; 503-front side; 504-rear side; 505-left side; 506-right side; 507-top side; 508-bottom side; 51-upper cover; 511-a charging port; 512-charging electrodes; 52-a lower cover; 521-a battery first terminal; 521 a-discharge anode label; 522-a battery second terminal; 522 a-discharge positive electrode label; 523-battery third terminal; 525-encapsulation; 526-guide slots; 53-cell; 54-charging port; 541-charging a negative electrode port; 542-charging positive port; 55-groove part; 551-first slot; 552-a second slot; 56-a temperature sensor; 57-battery control board; 571-a first vibration damping member; 571 a-a first outer end; 571 b-a first inner end; 572—a second vibration reduction member; 572 a-a second outer end; 572 b-a second inner end;

60-operation keys; 61-a pressing part; 62-hook part; 63-rotating shaft; 65-resetting piece;

700-blowing and sucking machine; 701-body; 702-a volute; 703-an air inlet; 704-air outlet.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. However, these embodiments are not intended to limit the present invention, and structural or functional modifications thereof by those skilled in the art are intended to be included within the scope of the present invention.

Example 1

The present embodiment is specifically described with respect to a grass trimmer. Referring to fig. 1, the grass trimmer 100 includes a link assembly 13, a working mechanism 11 connected to a front end of the link assembly 13, and a power mechanism 12 connected to a rear end of the link assembly 13. The front and rear ends are the front of the cutting area when the grass cutting machine is operated, the rear of the cutting area is the front of the cutting area when the user holds the grass cutting machine or the front of the cutting area is away from the cutting area when the grass cutting machine is operated, and the directions indicated by arrows in the figure are the front. In this embodiment, the work mechanism 11 includes a housing, a cutting member disposed within the housing for rotation about an axis in a work plane, and a shroud attached to the housing or to the linkage assembly. The grass trimmer in this embodiment includes a gasoline engine disposed within the power mechanism 12, the gasoline engine powering the work mechanism 11. A starter motor is also provided within the power mechanism 12 to effect an electric start of the gasoline engine. In some documents, the "starter motor" and "electric start" are also referred to as "starter motor" and "electric start".

In other gardening tools, the cutting element of the working mechanism can also perform shearing action by linear reciprocating motion, rotary motion or transverse motion of the staggered blades, and can also be other mechanisms which do not perform cutting work, such as a blowing and sucking machine. The power mechanism 12 includes a gasoline engine, which includes an electric starting system, and provides power through the gasoline engine to make the power of the grass trimmer powerful, so that the grass trimmer can be used outdoors for a long time. Of course, the power mechanism may also be an electric motor, a rechargeable battery pack for powering the motor, or an ac power source.

In the present embodiment, the link assembly 13 is provided with the battery pack 50, and the battery pack 50 mainly functions to supply power to the starter motor of the electric starting system, and is discharged only when the gasoline engine is started. Further, the battery pack 50 can also supply power to an electronic control system of the gasoline engine, such as an electronic ignition system, an electronic fuel injection system, an electric throttle system, an automatic throttle system, etc. Still further, the battery pack may be charged while the gasoline engine is operating.

In this embodiment, the link assembly 13 is further provided with two handles, a handle assembly 20 extending in the same direction as the link assembly 13, and an auxiliary handle 14 located in front of the handle assembly 20, and the auxiliary handle 14 can be movably connected to the link assembly 13 to facilitate position adjustment. While the power mechanism 12 is disposed at the rear end of the handle assembly 20, i.e., the handle assembly 20 is disposed between the auxiliary handle 14 and the power mechanism 12, the grip is more stable when operated by the user. In addition, the linkage assembly 13 includes a telescopic link that can be adjusted to adjust the distance between the handle assembly 20 and the work mechanism 11.

Referring to fig. 2-9, handle assembly 20 extends generally in a fore-aft direction and includes a front mechanical interface 202 and a rear mechanical interface 203, with front mechanical interface 202 being coupled to linkage assembly 13 and rear mechanical interface 203 being coupled, directly or indirectly, to power mechanism 12. The front and rear mechanical connectors 202 and 203 are each configured as a circular hole, and the center lines of the two connectors are collinear, as shown by the axis X in fig. 2 and 3, so that the extending direction of the handle assembly 20 coincides with the extending direction of the link assembly 13, facilitating the passage of the link assembly 13 through the two connectors to simplify the assembly of the handle assembly 20 and the link assembly 13. The rear portion of the handle assembly 20 is configured as a grip portion 21, the grip portion 21 extends a predetermined length in the front-rear direction, and a handle rubber coating 211 is further provided on the grip portion 21 to facilitate the grip of a user. The handle assembly 20 includes an operating portion 22 above the front portion and a battery mounting portion 30 below the front portion of the handle assembly 20. The front and rear sides of the handle assembly 20 are respectively connected to the link assembly 13 and the power mechanism 12, and the operation unit 22 can control the power mechanism 12 and the working mechanism 11 at the front end of the link assembly 13. Specifically, the operation portion 22 is provided with a plurality of keys, such as an accelerator lock key 222 extending to the upper end of the grip portion 21, an accelerator key 221 extending to the lower end of the grip portion 21, an ignition key 225 and a flameout key 220 arranged in parallel outside the housing of the operation portion 21, a total switch key 224 located on one side of the ignition key 225 and the flameout key 220 and located lower than the ignition key 225 and the flameout key 220, and the like. That is, the operating portion 22 is at least partially provided on the upper side of the link assembly 13 along the extending direction of the link assembly.

The handle assembly 20 includes a housing 201 of a Half (Half) structure, i.e., the housing 201 is assembled from generally symmetrical left and right housings, the operating portion 22 is disposed at an upper portion of the housing 201, the battery mounting portion 30 is disposed at a lower portion of the housing 201 and is located obliquely below the operating portion 22 for mounting the battery pack 50, the battery pack 50 is used for supplying power to an electric starting system, the battery pack 50 may also supply power to an electronic ignition system, an electronic fuel injection system, etc. The battery mounting portion 30 includes a battery pack mounting structure including a cavity 35 for mounting the battery pack 50 and a control board unit disposed above the cavity 35, the cavity 35 and the control board unit are both disposed on the lower side of the link assembly along the extending direction of the link assembly 13, and the control board unit is closer to the link assembly 13 than the cavity. The control panel unit has the functions of controlling the starting motor, protecting the battery and the like. The cavity 35 is disposed on the housing 201 of the handle assembly 20, the control board unit is clamped in the housing 201, the control board unit includes a substrate 31, an electronic component disposed on an upper surface of the substrate 31, and an electrode frame 32 disposed on a lower surface of the substrate 31, the electrode frame 32 has a body 320a fixed on the substrate 31 and clamping legs 320b extending downward along two ends of the body 320a, the clamping legs 320b extend into the cavity 35, and the battery pack 50 is mounted in the cavity 35 and cooperates with the clamping legs 320b to realize electrical connection with the control board unit.

The front of the cavity 35 is provided with an opening 350, the cavity 35 can be divided into a front cavity 350a communicated with the opening 350 and a rear cavity 350b opposite to the front cavity 350a, the clamping pin 320b extends into the rear cavity 350b, and when the battery pack 50 is installed, the clamping pin is inserted into the front cavity 350a from the opening 350 and then enters the rear cavity 350b. To facilitate the mounting and dismounting of the battery pack 50, the front cavity 350a has an open portion communicating with the outside in a direction perpendicular to the mounting direction of the battery pack 50, the battery pack 50 is mounted in the cavity 35, and a portion of the side wall of the battery pack 50 is exposed from the open portion. In this embodiment, the front portions of the left and right side walls of the cavity 35 have no physical side walls, so that the front ends of the left and right side walls of the battery pack 50 can be easily held in an attached or detached state. In addition, the front ends of the left and right side walls of the battery pack 50 may be further provided with a rubber coating 525, which is convenient to hold and can prevent the battery pack 50 from being accidentally bumped.

Referring to fig. 6 and 8, the clamping pins 320b at both ends of the body of the electrode holder 32 are provided with a clamping pin first terminal 321 and a clamping pin second terminal 322 protruding into the cavity, the battery pack 50 is provided with a battery first terminal 521 and a battery second terminal 522 respectively matched with the clamping pin first terminal 321 and the clamping pin second terminal 322, the battery first terminal 521 and the battery second terminal 522 are configured as positive and negative poles of the battery pack 50, which are respectively arranged at both sides of the end of the battery pack 50, and the clamping pin first terminal 321 and the clamping pin second terminal 322 are connected to the substrate 31 through the body 320a, when the battery pack 50 is mounted in the cavity 35, the clamping pin first terminal 321 is electrically connected with the battery first terminal 521, and the clamping pin second terminal 322 is electrically connected with the battery second terminal 522, so that the battery pack 50 and the control panel unit are electrically connected.

Further, as shown in fig. 5 and 8, the left and right side walls of the cavity 35 are respectively provided with guide protrusions 351 and 352 protruding into the cavity 35, the left and right sides of the battery pack 50 are correspondingly provided with guide grooves 526, and the battery pack is mounted in the cavity 35 through the matching guide of the guide grooves 526 and the guide protrusions 351 and 352, wherein the guide grooves 526 on the two sides are respectively corresponding to the positions of the first battery terminal 521 and the second battery terminal 522 so as to realize more reliable mounting of the battery pack 50. In addition, the battery pack 50 includes an upper cover 51, a lower cover 52, and a battery core 53 in the upper cover 51 and the lower cover 52, wherein the upper cover 51 is provided with a charging port 511, the lower cover 52 is provided with charging electrodes 512, and the charging ports are standardized by charging and discharging, so that the charging is more convenient.

Referring to fig. 8 in conjunction with fig. 1 and 3, the direction of arrangement of the battery cells 53 is consistent with the extending direction of the handle assembly, that is, the axis of the battery cells 53 is substantially parallel to the extending direction of the handle assembly or the extending direction of the link assembly, and the battery cells 53 include at least two, in this embodiment, two 3.6V battery cells 53. And at least two of the battery cells 53 are arranged in a lateral direction of the handle assembly, here, one side facing the working surface when the user holds the handle assembly is downward, the other side is upward, and the direction perpendicular to the extending direction of the upper and lower and handle assemblies is lateral, so that the battery pack 50 has a thinner thickness (about the diameter of one battery cell) in the upper and lower directions, that is, the dimension of the battery pack 50 in the upper and lower directions is smaller than the dimension thereof in the lateral direction. And the battery first terminal 521 and the battery second terminal 522 are respectively disposed at both sides of the battery pack, so that the battery pack and its mounting structure are thinner to reduce the overall volume of the handle assembly. In this embodiment, the rear wall of the cavity 35 is provided with a third cavity terminal 323, and the ends of the corresponding battery pack 50 adjacent to the first and second battery terminals 521 and 522 are provided with a third battery terminal 523 matching with the third cavity terminal 323, and the control board unit is connected to a detection module in the battery pack 50, such as a temperature measurement module in the battery pack 50, through the third cavity terminal 323 and the third battery terminal 523. In addition, the lower wall of the cavity 35 is provided with a third guiding protrusion 353, and the lower portion of the corresponding battery pack 50 is provided with a third groove portion (not shown) that mates with the third guiding protrusion 353, the third guiding protrusion 353 corresponds to the position of the third terminal 323 of the cavity along the installation direction of the battery pack 50, and the corresponding third groove portion also corresponds to the position of the third terminal 523 of the battery, so that reliable connection between the third terminal 323 of the cavity and the third terminal 523 of the battery is facilitated when the battery pack 50 is installed.

Referring to fig. 10 to 14, in order to realize locking of the battery pack in the cavity, the battery pack mounting structure further includes an operating mechanism disposed at a lower portion of the cavity 35, the operating mechanism includes an operating key 60 and a reset member 65 for pressing the operating key 60, a groove portion 55 cooperating with the operating key 60 is disposed on the battery pack 50, and the operating key 60 is engaged with the groove portion 55 under the action of the reset member 65 to lock the battery pack 50 in the cavity 35. Specifically, the operation key 60 includes a hook portion 62 that is engaged with the groove portion 55, a pressing portion 61 that is away from the hook portion 62, and a rotating shaft 63 that is located between the hook portion 62 and the pressing portion 61, and the reset member 65 presses the pressing portion 61 outward, and the hook portion 61 is engaged with the groove portion 55 inward by the rotating shaft 65, so that the battery pack 50 is locked with respect to the cavity 35.

Referring to fig. 13 and 14, when the battery pack 50 needs to be disassembled, the pressing part 61 is forced inwards, the pressing part 61 overcomes the force of the reset piece 65 and simultaneously pivots under the action of the rotating shaft 63 to drive the hook part 62 to separate from the groove part 55, the battery pack 50 is unlocked relative to the cavity 35, an elastic piece is arranged on the rear wall of the cavity 35 for conveniently taking out the battery pack, the battery pack 50 is installed in the cavity, and the elastic piece is compressed; when the battery pack 50 is unlocked, the elastic force of the elastic member is released, that is, the battery pack 50 is ejected out of the cavity 35 under the action of the elastic member, so that the battery pack can be disassembled by one hand. Preferably, in this embodiment, the cavity third terminal 323 and the elastic member may be constructed as the same member, such as a spring, so that assembly is facilitated to reduce costs. Of course, the elastic member and the third cavity terminal 323 may be separately provided according to actual requirements.

In addition, when the battery pack 50 is not mounted, the hook 62 protrudes into the cavity 35 under the action of the reset member 65, in order to mount the battery pack by one hand, a surface of the hook 62 facing the opening 350 of the cavity 35 is configured as a guiding surface, the guiding surface may be a surface of an inclined surface, an arc surface, or a curved surface, etc. capable of generating a downward component force by the force of the battery pack 50 moving into the cavity 35, along with the movement of the battery pack 50 into the cavity 35, the hook 62 moves outwards to drive the pressing portion 61 through the rotating shaft 63 to overcome the action of the reset member 65, the battery pack 50 is smoothly mounted into the cavity 35, and when the position of the groove 55 corresponds to the position of the hook 62, the hook 62 is clamped into the groove 55 under the action of the reset member 65 to lock the battery pack 50. In this embodiment, the restoring member 65 is preferably a compression spring, one end of which abuts against the housing, and the other end abuts against the pressing portion. Of course, the compression spring can also be arranged to be abutted against the hook part, and the reset piece can also be arranged to be a torsion spring, the torsion spring can be sleeved on the rotating shaft, one end of the torsion spring is fixed relative to the shell, and the other end of the torsion spring is abutted against the pressing part or the hook part.

According to the invention, the battery pack is mounted on the control panel unit, so that the battery pack is fixed relative to the base plate, the battery pack and the control panel unit can be protected from being affected by vibration during tool use, tool faults caused by the vibration can be prevented from being used, the battery pack mounting structure is compact, and the battery pack can be dismounted by one hand, so that the use is more convenient for users. Through setting up battery package mounting structure in handle subassembly, and operating portion also sets up at handle subassembly, can carry out the operation of instrument when gripping, sets up battery package, control panel unit and operating portion together moreover, reduces the trouble of wiring, and the equipment is simpler and more convenient, and is with low costs to use reliably simultaneously. Through setting up the handle subassembly between operating mechanism and power unit, can protect battery package and control panel unit not receive power unit's vibration and produce thermal influence, the handle subassembly is located power unit's front portion moreover to the opening of the cavity of installation battery package when installing is towards operating mechanism, can not receive the influence of the waste gas that power unit produced more, thereby reduce garden instrument because of the trouble that vibration and heating arouse, thereby use more reliably and garden instrument's life is longer.

The present embodiment is described by taking a grass cutter as an example, but it is needless to say that the present embodiment may be also used for other garden tools such as a brush cutter, an edge trimmer, a chain saw, and a pruning shear.

Example two

As shown in fig. 15 to 36, the present embodiment will be described by taking an electric starting gasoline blower as an example. In autumn, the outdoor environment often has a plurality of scattered fallen leaves, so that a plurality of problems are brought to the environment of a house courtyard, and especially after rain, the leaves are mixed with muddy water to be stuck on the ground, so that great trouble is brought to cleaning. The electric starting gasoline blowing and sucking machine of the embodiment is equipment capable of cleaning courtyard or surrounding environment, and the working principle is that an engine of a gasoline engine is started through battery operation, and the engine drives a crankshaft to rotate at a high speed and drives an impeller to rotate, so that air suction or blowing is generated, and the purpose of cleaning is achieved.

Specifically, as shown in fig. 15 and 16, the blower 700 includes a housing 701, and a working mechanism and a power mechanism are disposed on the housing 701, wherein the working mechanism includes a scroll 702 and an impeller disposed in the scroll 702, an air inlet 703 is disposed on one side of the scroll 702, and an air outlet 704 is disposed at the front of the scroll 702. In this embodiment, the working mechanism of the blower 700 is a centrifugal fan, and the air outlet direction of the air outlet 704 is perpendicular to the air inlet direction of the air inlet 703; in other embodiments, the working mechanism of the blower 700 may be an axial flow fan, and the air outlet direction of the air outlet 704 is parallel to the air inlet direction of the air inlet 703. The power mechanism comprises a gasoline engine and a starting motor, wherein the gasoline engine provides power for the working mechanism, and the starting motor is used for realizing electric starting of the gasoline engine. The embodiment provides power through the gasoline engine so as to make the power of the blowing and sucking machine strong, and can be used outdoors for a long time; of course, the power mechanism may be a motor, a rechargeable battery pack for supplying power to the motor, an ac power supply, or the like. Further, a handle assembly 20 is further arranged above the machine body 701, the handle assembly 20 comprises a shell, a holding part 21, an operating part 22 and a battery mounting part are arranged on the shell, the holding part 21 extends along the air outlet direction, and a handle rubber coating is further arranged on the holding part 21, so that the user can hold the handle rubber coating conveniently; the operation part 22 is positioned at the front end of the holding part 21, and an activation switch 226 for activating the blowing and sucking machine and a starting switch 227 for starting the blowing and sucking machine to work are arranged on the operation part 22; the battery mounting portion 30 is disposed at one end of the housing near the air outlet 704 and is located obliquely below the operating portion 22, and the battery pack 50 is detachably mounted on the battery mounting portion 30, and the battery pack 50 is used for supplying power to the starter motor. In addition, the battery pack 50 can also supply power to an electronic control system of the gasoline engine, such as an electronic ignition system, an electronic fuel injection system, an electric throttle system, an automatic throttle system, and the like. Still further, the battery pack 50 may also be charged while the gasoline engine is operating.

The starting process of the blowing and sucking machine is as follows: the battery pack 50 provides a direct current power supply for the starting motor, the starting motor rotates at a high speed to drive a gear assembly in the engine body 701 to rotate, the gear assembly continuously applies pressure to a volute spring in the engine body 701, namely the volute spring continuously stores the kinetic energy of the starting motor, and once the elasticity provided by the volute spring is larger than the resistance of a crankshaft in the engine body 701, the volute spring releases energy to the crankshaft through a clutch mechanism, so that the rotation of the crankshaft is promoted, and the electric starting process of the gasoline engine is realized. Once the gasoline engine is started, the crankshaft rotates at a high speed to drive the impeller to work, and the clutch mechanism is disengaged to stop the speed reducing mechanism.

It should be noted that, the specific structure of the handle assembly 20 provided in the present embodiment is similar to that of the handle assembly 20 in the first embodiment, and the details thereof will not be repeated in the present embodiment, and only the differences will be described below.

In this embodiment, the cavity 35 and the control board unit are both disposed above the air outlet 704 and are both located below the operation portion 22. The cavity 35 is provided in the battery mounting portion 30, and the battery pack 50 can be inserted into the cavity 35 or ejected from the cavity 35 in the extending direction of the grip portion 21. However, since the existing battery pack mounting structure does not have a buffer when the battery pack 50 is ejected, if the user cannot hold the battery pack 50 in time during the process of ejecting the battery pack 50, the battery pack 50 is easy to fall and be damaged. Specifically, as shown in fig. 17-19, the present embodiment provides the groove portion 55 as a first groove 551 and a second groove 552, wherein the first groove 551 is relatively far from the battery third terminal 523, the second groove 552 is relatively close to the battery third terminal 523, and both the first groove 551 and the second groove 552 can be engaged with the hook portion. Here, the depth of the first groove 551 is greater than the depth of the second groove 552, and when the hook 62 is snapped into the first groove 551, the battery pack 50 can be locked with respect to the cavity 35, and the battery pack 50 cannot be withdrawn from the cavity 35; when the battery pack 50 is unlocked relative to the cavity 35, the battery pack 50 is ejected out of the cavity 35, and at this time, the hook 62 can be snapped into the second groove, and the battery pack 50 can be manually pulled out by a user.

Further, as shown in fig. 20, the side wall of the first groove 551 away from the protruding end of the battery pack 50 is a plane, the included angle α between the side wall and the top side 507 of the battery pack 50 is not greater than 90 °, or the side wall is a curved surface, and the minimum included angle between the tangential plane of the side wall and the top side 507 of the battery pack 50 is not greater than 90 °; the arrangement can ensure the clamping connection of the hook 62 and the first groove 551, and prevent the battery pack from slipping; illustratively, as shown in fig. 20, the angle of the front of the first groove 551 with the top side 507 of the battery pack may be set at an acute angle, and the angle of the rear of the first groove 551 with the top side 507 of the battery pack may be set at an acute angle. The side wall of the second slot 552, which is far away from the extending end of the battery pack 50, is a plane, the included angle beta between the side wall and the top side 507 of the battery pack 50 is not smaller than 120 degrees, or the side wall is a curved surface, so that the maximum included angle between the tangent plane of the side wall and the top side 507 of the battery pack 50 is not smaller than 120 degrees, and the arrangement can enable the battery pack 50 to be clamped in the cavity 35 and not to fall down, and enable an operator to draw out the battery pack 50 from the cavity 35 under certain action; illustratively, as shown in fig. 20, the angle of the front of the second slot 552 to the top side 507 of the battery pack may be set at an acute angle, and the angle of the rear of the second slot 552 to the top side 507 of the battery pack may be set at an obtuse angle.

The working process of the pop-up buffer structure of this embodiment is as follows: when the battery pack 50 needs to be disassembled, the pressing part 61 is forced inwards, the pressing part 61 overcomes the acting force of the reset piece 65 and simultaneously pivots under the action of the rotating shaft 63 to drive the hook part 62 to be separated from the first groove 551, and the battery pack 50 is unlocked relative to the cavity 35; when the battery pack 50 is unlocked, the elastic member of the rear wall of the cavity 35 is released, that is, under the action of the elastic member, the battery pack 50 is ejected out of the cavity 35, and the second groove 552 on the battery pack 50 is clamped with the hook 62 during the ejection process, so as to prevent the battery pack 50 from being completely separated from the cavity 35, and then the user can manually withdraw the battery pack 50 from the cavity 35.

Further, due to the characteristics of the insertion direction of the battery pack 50, during the process of inserting the battery pack 50 into the cavity 35, the left and right sides of the battery pack 50 will generate forces along the insertion direction of the battery pack 50 to the clamping pin first terminal 321 and the clamping pin second terminal 322, which results in easy loosening of the electrode frame 32, and meanwhile, during the process of inserting and extracting the battery pack 50 for multiple times, the welding points between the clamping pin first terminal 321 and the clamping pin second terminal 322 and the substrate 31 are easy to damage and loosen. For this reason, the present embodiment further improves the control board unit and its mounting structure. The method comprises the following steps:

As shown in fig. 21 to 26, the control board unit includes a substrate 31, electronic components provided on an upper surface of the substrate 31, and an electrode frame 32 provided on a lower surface of the substrate 31, the electrode frame 32 having a body 320a fixed to the substrate 31 and legs 320b extending downward along both ends of the body 320 a. As shown in fig. 22, in the embodiment, the electrode holder 32 is mounted in the housing 201, the housing 201 is provided with a recess 34, and two clamping legs 320b of the electrode holder 32 are both clamped in the recess 34, so that the electrode holder 32 can be further prevented from shaking during the process of inserting and extracting the battery pack 50. Two clamping pins 320b of the electrode frame 32 extend into the cavity 35, a clamping pin first terminal 321 is mounted on the clamping pin 320b at one end, a clamping pin second terminal 322 is mounted on the clamping pin 320b at the other end, and the battery pack 50 is mounted in the cavity 35 and electrically connected with the clamping pin first terminal 321 and the clamping pin second terminal 322. Further, the electrode frame 32 of the present embodiment is an integral structure, in which the body 320a and the clamping pins 320b at two ends thereof form a "U" shape, and this arrangement can make the first terminal 521 and the second terminal 522 of the battery pack 50 be respectively and correspondingly tightly connected with the first terminal 321 and the second terminal 322 of the clamping pins at two sides of the electrode frame 32, so as to improve connection reliability; on the other hand, the "U" -shaped structure also has an elastic shock absorbing effect, preventing the battery pack 50 from being disconnected from the control board unit due to vibration during use. Meanwhile, the arrangement of the integrated U-shaped structure can meet the requirement of better safety performance with the least materials, so that the material cost is saved. Preferably, the electrode holder 32 of the present embodiment is made of a flame retardant material, such as plastic, rubber, glass, etc., to ensure good flame retardant performance of the electrode holder 32.

In this embodiment, the first fixing members 324 are respectively disposed on the first pin terminal 321 and the second pin terminal 322, the terminal mounting grooves 33 are respectively disposed on the pins 320b at two ends of the body 320a, and the second fixing members 325 are disposed on the terminal mounting grooves 33. The first fixing piece 324 and the second fixing piece 325 are matched to firmly fix the clamping pin first terminal 321 and the clamping pin second terminal 322 on the clamping pin 320b, so that the two terminals are prevented from shaking under the acting force of the battery pack 50. Preferably, the first fixing member 324 is a positioning hole formed at the bottom of the first terminal 321 and the second terminal 322, and the second fixing member 325 is a positioning post protruding from the inner side of the clamping leg 320b, so that the reliability of fixing the terminals is ensured and the convenience of installation is improved through the cooperation of the positioning hole and the positioning post. The upper end of the first terminal 321 is provided with a first electrode insert 3211, the upper end of the second terminal 322 is provided with a second electrode insert 3221, the electrode frame 32 is provided with a through hole for the first terminal 321 and the second terminal 322 to pass through, and the substrate 31 is provided with an electrode hole 311 at a position corresponding to the first terminal 321 and the second terminal 322. The first electrode tab 3211 and the second electrode tab 3221 respectively pass through the corresponding through holes and the electrode holes 311 and are then welded to the substrate 31, and this arrangement improves the positioning accuracy of the electrode tabs. In order to improve the welding strength, the shapes of the first electrode insert 3211 and the second electrode insert 3221 in this embodiment are preferably in a harpoon shape, and the harpoon-shaped structure can perform two-point welding with the substrate 31 through two prongs, so that the welding between the electrode insert and the substrate is more firm. The lower end of the first clamping pin terminal 321 is provided with a first contact piece 3212 for abutting against the first battery terminal 521; the lower end of the second terminal 322 is provided with a second contact 3222 for abutting against the second terminal 522.

Further, the body 320a of the electrode holder 32 is fixedly connected to the substrate 31 by a third fixing member 326, and in this embodiment, the third fixing member 326 is preferably a rivet, and rivet holes 326a for inserting the rivet are formed in the substrate 31 and the electrode holder 32. The riveted connection ensures a firm and stable connection of the electrode holder 32 and the substrate 31. Further, a substrate positioning hole 312 may be further formed in the substrate 31, and a substrate positioning column 312a may be formed at the top end of the electrode frame 32, so as to position the electrode frame 32 and the substrate 31, and ensure the accuracy of installation. In this embodiment, the substrate 31 and the motor frame 32 are positioned by matching the substrate positioning hole 312 with the substrate positioning column 312a, the electrode frame 32 and the substrate 31 are fixed by matching the rivet with the rivet hole 326a, and the electrode frame 32 is firmly fixed on the substrate 31 by the combined action of the rivet and the substrate positioning column 312a, so as to prevent loosening of the electrode welding spot in the battery plugging process.

In the embodiment, the first clamping pin terminal 321 and the second clamping pin terminal 322 are fixed on the electrode frame 32, and the electrode frame 32 is fixed on the substrate 31, so that the first clamping pin terminal 321 and the second clamping pin terminal 322 can keep stable relative positions even when the impact force of the battery pack 50 is received, and the electrode insert is prevented from shaking in the electrode hole 311 to cause the loosening of welding spots. Further, the third cavity terminal 323 of the present embodiment is provided with a wire portion 3231 with a certain flexibility, the third cavity terminal 323 is connected with the substrate 31 through the wire portion 3231, and the wire portion 3231 can absorb vibration, so that the problem that the welding spot between the third cavity terminal 323 and the substrate 31 is loose due to vibration is solved well. In addition, the third terminal 323 of the cavity is further provided with a spring portion 3232, and the spring portion 3232 can be used as a functional component for ejecting the battery pack 50 and a functional component for transmitting signals, so that equipment is convenient to assemble, and manufacturing cost is reduced.

In the present embodiment, as shown in fig. 27 to 36, the battery pack 50 has a substantially hexahedral shape, and includes a pack bottom side surface 508 and a pack top side surface 507 which are provided opposite to each other, a pack front side surface 503 and a pack rear side surface 504 which are provided opposite to each other, and a pack left side surface 505 and a pack right side surface 506 which are provided opposite to each other. The battery pack 50 includes a battery pack housing and a battery cell 53 mounted within the battery pack housing. Specifically, the battery pack case is formed by at least fastening an upper cover 51 and a lower cover 52. In the present embodiment, the bottom side 508 is disposed on the upper cover 51, and the top side 507 is disposed on the lower cover 52. The battery cells 53 are substantially cylindrical, the battery cells 53 are mounted in a battery pack case, wherein the axial directions of the two battery cells 53 are arranged along the front-rear direction of the battery pack 50, the radial directions of the two battery cells 53 are arranged along the left-right direction of the battery pack 50, and the two battery cells 53 are arranged side by side along the left-right direction of the battery pack (i.e., the axial directions of the battery cells 53 are consistent with the extending direction of the holding portion 21, and the arrangement directions of the two battery cells 53 are perpendicular to the extending direction of the holding portion 21), which results in the battery pack 50 having a smaller thickness in the up-down direction. In addition, a battery control board 57 is provided in the battery pack case at the rear of the battery cell 50.

In the present embodiment, referring to fig. 34 to 36, the battery pack 50 is provided with a discharge port and a charge port 54, and the discharge port is specifically a battery first terminal 521 and a battery second terminal 522 provided on both sides of the battery pack 50, and the battery first terminal 521 and the battery second terminal 522 are provided near the rear of the battery pack 50 and are electrically connected to the battery control board 57, respectively. With the above arrangement, on one hand, the first battery terminal 521 and the second battery terminal 522 are located on both sides of the battery pack 50, and because the distance between the two terminals is large, it is difficult to directly contact the two terminals under unintended conditions, so that short circuit between the first battery terminal 521 and the second battery terminal 522 is prevented to the maximum extent; on the other hand, since the battery control board 57 is provided at the rear of the battery pack 50, the battery first terminal 521 and the battery second terminal 522 can be directly led out from the left and right ends of the battery control board 57, avoiding complicated wiring. For easy recognition, a discharge negative electrode mark 521a is provided on the left side surface of the battery pack 50 in the vicinity of the battery first terminal 521; a discharge positive electrode mark 522a is provided on the right side surface of the battery pack 50 in the vicinity of the battery second terminal 522. In other embodiments, the positions of the battery first terminal 521 and the battery second terminal 522 may be exchanged according to the actual situation.

In the present embodiment, referring to fig. 27 and 30 to 31, the charging port 54 is provided on the bottom surface 508 of the battery pack 50. The charging port 54 includes a charging negative electrode port 541 and a charging positive electrode port 542, which are electrically connected to the battery control board 57, respectively. The charging negative electrode port 541 and the charging positive electrode port 542 are arranged at intervals, and an outer contour of the charging negative electrode port 541 is different from an outer contour of the charging positive electrode port 542. The charging terminal in plug-in fit with the charging port 54 is provided with a charging positive terminal and a charging negative terminal which are arranged at corresponding intervals, and the outer contour of the charging positive terminal is different from the outer contour of the charging negative terminal. This design can not only prevent the reverse insertion of the positive and negative electrodes, but also effectively prevent the occurrence of a short circuit between the charging positive electrode port 542 and the charging negative electrode port 541. Further, the charging port 54 is provided near the rear side 504 of the battery pack 50, so that the charging port 54 is designed to be near the battery control board 57, avoiding complicated wiring.

Further, the battery pack 50 is also provided with at least one temperature sensor 56 electrically connected to the battery control board 57, respectively. In the present embodiment, the temperature sensor 56 is provided between the two cells 53 and is attached to the surface of any one of the cells 53. In other embodiments, at least one temperature sensor 56 may be provided on each of the battery cells 53 as needed, the temperature sensor 56 being connected to the battery control board 57 by wires. The rear side 504 of the battery pack 50 is provided with a battery third terminal 523, and since the battery third terminal 523 is closely spaced from the battery control board 57, the battery third terminal 523 can be directly led out from the battery control board 57, avoiding complicated wiring. Accordingly, a cavity third terminal 323 coupled with the battery third terminal 523 is provided at the rear inner wall of the cavity 35.

After the battery pack 50 is inserted into the cavity 35, the first battery terminal 521 and the second battery terminal 522 are respectively and correspondingly electrically connected with the first clamping pin terminal 321 and the second clamping pin terminal 322, so that the battery pack 50 is electrically connected with the starting motor through the control board unit and the cable assembly to supply power to the starting motor and other electronic components; the battery third terminal 523 is electrically connected to the control board unit through the cavity third terminal 323, and the control board unit directly controls or indirectly controls the operating parameters of the battery pack 50 through the battery control board 57 through the temperature signal collected by the battery third terminal 523.

In a blower, the power assembly includes a gasoline engine, resulting in difficulty in avoiding large vibrations during operation. If the fit clearance between the battery pack 50 and the cavity 35 is designed to be small, the battery pack 50 can be prevented from shaking relative to the cavity 35, so that the abrasion of the discharge port of the battery pack can be avoided, but the problem of difficult insertion and removal of the battery pack 50 is caused. If the fit clearance between the battery pack 50 and the cavity 35 is designed to be not small enough, the battery pack 50 can be successfully inserted and removed, but the service life of the battery pack 50 is seriously affected by the abrasion of the discharge port of the battery pack.

For the above reasons, the battery pack 50 in this embodiment further includes a vibration damper made of an elastic material. As shown in fig. 27 to 36, in order to absorb the vibration of the battery pack 50 in the left-right direction in the cavity 35, at least two first vibration absorbing members 571 are provided on the left side surface of the battery pack 50 and the right side surface of the battery pack 50, respectively; in order to absorb the vibration of the battery 50 packed in the cavity 35 in the up-down direction, at least one second vibration absorbing member 572 is provided at the top side 507 of the battery pack 50. Specifically, referring to fig. 34 and 35, two first vibration reducing members 571 are symmetrically disposed at the left side surface of the battery pack 50 and the right side surface of the battery pack 50. Taking the left first vibration absorbing member 571 as an example, the first vibration absorbing member 571 is embedded in the left side surface of the lower cover 52, and includes a first outer end 571a protruding at least partially from the outer surface of the lower cover 52, and further includes a first inner end 571b protruding at least partially from the inner surface of the lower cover 52. The inner end face of the first inner end 571b abuts against the battery cell 53; when the battery pack 50 is mounted in the cavity 35, the outer end face of the first outer end 571a abuts against the inner wall of the cavity 35, and the first vibration damping member 571 is sandwiched between the inner wall of the cavity 35 and the battery cell 53. Further, the first outer end 571a is smaller than the first inner end 571b, so that the first vibration absorbing member 571 can be ensured not to be detached from the battery pack 50. Further, the distance between the first vibration absorbing member 571 and the front side 503 of the battery pack 50 is D1, the distance between the first vibration absorbing member 571 and the rear side 504 of the battery pack 50 is D2, D1 is substantially equal to D2, and the value of D1/D2 may be set to 1 to 1.5, preferably D1/D2 is 1.2 to 1.3.

Referring to fig. 28, 30 and 31, at least one second vibration dampening member 572 is embedded within the lower cover 52 and includes a second outer end 572a that at least partially protrudes from the outer surface of the lower cover 52 and a second inner end 572b that at least partially protrudes from the inner surface of the lower cover 52. Further, an arc surface corresponding to the arc of the outer surface of the battery cell 53 is provided on the inner end surface of the second inner end 572b. The cambered surface abuts against the battery cell 53; when the battery pack 50 is mounted in the cavity 35, the outer end face of the second outer end 572a abuts against the inner wall of the cavity 35, and the second vibration damping member 572 is sandwiched between the inner wall of the cavity 35 and the battery cell 53. Further, the second outer end 572a is smaller than the second inner end 572b, which ensures that the second damping member 572 does not come off the battery pack 50. Further, a second vibration damping member 572 is provided between the groove portion 55 and the rear side 504 of the battery pack 50. In the present embodiment, the second damper 572 is provided in two, and the cambered surfaces thereof are provided substantially directly below the two battery cells 53, respectively.

Through setting up the damping piece, this embodiment has effectively reduced the vibration of battery package 50 in the course of the work under the smooth circumstances of guaranteeing the plug of battery package 50, prevents that battery package 50 from taking place to rock for cavity 35, and then has avoided the wearing and tearing of battery package 50 discharge port, has improved battery package 50's life.

The embodiment is described by taking a blowing and sucking machine as an example, and of course, the buffering and ejecting structure of the battery pack 50 in the handle assembly 20 provided in the embodiment above, the connection structure between the electrode frame 32 and the substrate 31, the clamping pin first terminal 321, the clamping pin second terminal 322, and the cavity third terminal 323, the structure of the battery pack 50 itself, the mounting structure of the battery pack 50 and the cavity 35, and the specific arrangement of the charging port 54, the vibration absorbing member, the temperature sensor 56, etc. can also be used for a grass cutter or other garden tools in the first embodiment, such as a brush cutter, an edge trimmer, a chain saw, a pruning shears, etc.

It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.

Claims

1. A battery pack detachably mounted on a machine tool, characterized in that the machine tool comprises a housing (201) and a control board unit provided in the housing; the shell (201) comprises a holding part (21) and an operating part (22), and a cavity (35) for detachably mounting the battery pack (50) is arranged in the shell (201); the control panel unit comprises a base plate (31) and an electrode frame (32) fixedly connected with the base plate (31);

The battery pack (50) is configured to be inserted into the cavity (35), and terminals which are matched with the electrode frames (32) to realize the electric connection between the battery pack (50) and the substrate (31) are respectively arranged on two opposite side surfaces of the battery pack (50);

the battery pack (50) comprises a battery pack shell and a battery cell (53) arranged in the battery pack shell, the battery pack shell comprises an upper cover (51) and a lower cover (52) which are connected in a buckled mode, and the axis of the battery cell (53) is consistent with the insertion direction of the battery pack (50);

The battery pack (50) further includes a vibration damping member made of an elastic material;

the vibration reduction parts comprise a first vibration reduction part (571) and a second vibration reduction part (572), and at least two first vibration reduction parts (571) are arranged on the left side surface (505) and the right side surface (506) of the battery pack (50); -at least one second vibration damping member (572) is arranged on the top side (507) of the battery pack (50);

The first vibration damper (571) comprises a first outer end (571 a) protruding at least partially from the outer surface of the lower cover (52), and a first inner end (571 b) protruding at least partially from the inner surface of the lower cover (52), wherein the inner end surface of the first inner end (571 b) abuts against the battery cell (53); when the battery pack (50) is installed in the cavity (35), the outer end face of the first outer end (571 a) abuts against the inner wall of the cavity (35), and the first vibration reduction piece (571) is clamped between the inner wall of the cavity (35) and the battery cell (53).

2. The battery pack according to claim 1, wherein: the terminals include a battery first terminal (521) and a battery second terminal (522); the battery first terminal (521) and the battery second terminal (522) are respectively arranged at the end parts of the two opposite side surfaces of the battery pack (50).

3. The battery pack according to claim 2, wherein: a third battery terminal (523) is provided on the battery pack (50) at an end portion adjacent to the first battery terminal (521) and the second battery terminal (522).

4. The battery pack according to claim 1, wherein: the battery pack (50) is also provided with at least one temperature sensor (56) electrically connected to the battery control board (57), respectively.

5. The battery pack according to any one of claims 1 to 4, wherein: the battery pack (50) further comprises a charging port (54), the charging port (54) is arranged on the bottom side surface (508) of the battery pack (50), a battery control board (57) is arranged in the battery pack shell, the charging port (54) comprises a charging negative electrode port (541) and a charging positive electrode port (542) which are respectively electrically connected with the battery control board (57), the charging negative electrode port (541) and the charging positive electrode port (542) are arranged at intervals, and the outer contour of the charging negative electrode port (541) is different from the outer contour of the charging positive electrode port (542).

6. The battery pack according to claim 1, wherein: the second vibration reduction piece (572) is embedded in the top side surface (507) of the battery pack (50), the second vibration reduction piece (572) comprises a second outer end (572 a) protruding at least partially out of the outer surface of the lower cover (52), and further comprises a second inner end (572 b) protruding at least partially out of the inner surface of the lower cover (52), an arc surface corresponding to the radian of the outer surface of the battery cell (53) is arranged on the inner end surface of the second inner end (572 b), and the arc surface abuts against the battery cell (53); when the battery pack (50) is installed in the cavity (35), the outer end face of the second outer end (572 a) abuts against the inner wall of the cavity (35), and the second vibration reduction piece (572) is clamped between the inner wall of the cavity (35) and the battery cell (53).

7. The battery pack according to claim 6, wherein: the first outer end (571 a) of the first vibration damping member (571) is smaller than the first inner end (571 b) of the first vibration damping member (571), and the second outer end (572 a) of the second vibration damping member (572) is smaller than the second inner end (572 b) of the second vibration damping member (572).

8. The battery pack according to any one of claims 1 to 4, wherein: be equipped with battery operating device on casing (201), operating device includes operating key (60) and supports reset piece (65) of pressing the operating key, be equipped with on battery package (50) with operating key (60) complex slot part (55), operating key (60) joint under the effect of reset piece (65) slot part (55) will battery package (50) lock in cavity (35).

9. The battery pack of claim 8, wherein: the operation key (60) comprises a hook part (62) matched with the groove part (55), a pressing part (61) far away from the hook part and a rotating shaft (63) positioned between the hook part and the pressing part, the reset piece (65) presses the pressing part (61) to enable the hook part (62) to be clamped with the groove part (55), and the battery pack (50) is locked relative to the cavity (35); the pressing part (61) can be operated to overcome the acting force of the reset piece (65) to separate the hook part (62) from the groove part (55), and the battery pack (50) is unlocked relative to the cavity (35).

10. The battery pack according to claim 9, wherein: the rear wall of the cavity (35) is provided with an elastic piece, the battery pack (50) is locked relative to the cavity (35), and the battery pack presses against the elastic piece and enables the elastic piece to store energy; the battery pack is unlocked relative to the cavity, and the elastic force of the elastic piece is released to drive the battery pack to move outside the cavity.

11. The battery pack according to claim 10, wherein: the spring is configured as a cavity third terminal (323).

12. The battery pack according to claim 9, wherein: the groove part (55) comprises a first groove (551) and a second groove (552) which can be matched with the hook part (62), the first groove (551) is closer to the extending end of the battery pack (50) than the second groove (552), and when the hook part (62) is clamped into the first groove (551), the battery pack (50) is locked and installed in the cavity (35); when the hook portion (62) is engaged with the second groove (552), the battery pack (50) can be pulled out of the cavity (35).

13. The battery pack of claim 12, wherein: the side wall of the first groove (551) far away from the extending end of the battery pack (50) is a plane, the included angle between the side wall and the top side surface (507) of the battery pack (50) is not more than 90 degrees, or the side wall is a curved surface, and the minimum included angle between the tangent plane of the side wall and the top side surface (507) of the battery pack (50) is not more than 90 degrees; the side wall of the second groove (552) far away from the extending end of the battery pack (50) is a plane, the included angle between the side wall and the top side surface (507) of the battery pack (50) is not less than 120 degrees, or the side wall is a curved surface, and the maximum included angle between the tangent plane of the side wall and the top side surface (507) of the battery pack (50) is not less than 120 degrees.

14. The battery pack according to any one of claims 1 to 4, wherein: the electrode frame (32) comprises a body (320 a) fixed on the substrate (31) and clamping pins (320 b) extending downwards along two ends of the body (320 a), the clamping pins (320 b) extend into the cavity (35), and the battery pack (50) is installed in the cavity (35) and matched with the clamping pins (320 b) to be electrically connected with the control panel unit.

15. The battery pack of claim 14, wherein: the cavity (35) comprises an opening (351), a front cavity (350 a) communicated with the opening (351) and a rear cavity (350 b) opposite to the front cavity, the clamping pin (320 b) is located in the rear cavity (350 b), the front cavity (350 a) comprises an opening part communicated with the direction perpendicular to the installation direction of the battery pack, the battery pack (50) is installed in the cavity (35), and a part of the side wall of the battery pack (50) is exposed from the opening part.

16. The battery pack of claim 15, wherein: the side wall of the battery pack is provided with an encapsulation (525) exposed from the opening portion.

17. The battery pack of claim 14, wherein: the battery pack is characterized in that clamping pins (320 b) at two ends of the body (320 a) are correspondingly provided with a clamping pin first terminal (321) and a clamping pin second terminal (322) protruding towards the inside of the cavity (35), and the battery pack (50) is provided with a battery first terminal (521) and a battery second terminal (522) which are matched with the clamping pin first terminal (321) and the clamping pin second terminal (322) respectively, and the battery first terminal (521) and the battery second terminal (522) are arranged at two sides of the end part of the battery pack (50) respectively.

18. The battery pack of claim 17, wherein: a guide groove (526) is formed in one of the battery pack (50) and the side wall of the cavity (35), guide protrusions (351, 352) are formed in the other one of the battery pack (50) and the inner wall of the cavity, the battery pack (50) is mounted in the cavity (35) through the cooperation of the guide groove (526) and the guide protrusions (351, 352), and the guide groove (526) or the guide protrusions (321, 322) correspond to the positions of the battery first terminal (521) and/or the battery second terminal (522).

19. The battery pack of claim 17, wherein: the rear wall of the cavity (35) is provided with a cavity third terminal (323), the end part, close to the battery first terminal (521) and the battery second terminal (522), of the battery pack (50) is provided with a battery third terminal (523) matched with the cavity third terminal (323), and the control panel unit is connected with a detection module in the battery pack through the matching of the cavity third terminal (323) and the battery third terminal (523).

20. The battery pack of claim 19, wherein: a third guide protrusion (353) is arranged on one of the lower wall of the cavity (35) and the battery pack (50), a third guide groove matched with the third guide protrusion (353) is arranged on the other one of the lower wall of the cavity and the battery pack, and the third guide protrusion or the third guide groove corresponds to the position of the third terminal (323) of the cavity or the third terminal (523) of the battery.

21. A garden tool comprising a work mechanism (11) and a power mechanism (12), wherein the power mechanism (12) comprises a gasoline engine, the gasoline engine comprising an electric starting system comprising a starter motor, characterized in that the garden tool further comprises a battery pack according to any one of claims 1-20; the battery pack (50) supplies power to the starter motor.

22. The garden tool of claim 21, wherein the garden tool is an electric start engine lawnmower or an electric start gasoline blower.

23. A garden tool as claimed in claim 21, wherein the opening (351) of the cavity (35) is facing the working mechanism (11).

24. The garden tool as recited in claim 21, wherein the gasoline engine further comprises one or more of an electronic fuel injection system, an electronic ignition system, and an automatic throttle system, and wherein the battery pack (50) provides power to one or more of the electronic fuel injection system, the electronic ignition system, and the automatic throttle system.