WO2022077559A1 - Backpack-type operation tool - Google Patents
Backpack-type operation tool Download PDFInfo
- Publication number
- WO2022077559A1 WO2022077559A1 PCT/CN2020/123999 CN2020123999W WO2022077559A1 WO 2022077559 A1 WO2022077559 A1 WO 2022077559A1 CN 2020123999 W CN2020123999 W CN 2020123999W WO 2022077559 A1 WO2022077559 A1 WO 2022077559A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- power supply
- battery pack
- mounting seat
- supply mounting
- assembly
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 48
- 238000003780 insertion Methods 0.000 claims description 18
- 230000037431 insertion Effects 0.000 claims description 18
- 230000008859 change Effects 0.000 claims description 2
- 238000013024 troubleshooting Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 230000001066 destructive effect Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 208000034656 Contusions Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000011022 operating instruction Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/247—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the utility model relates to a backpack-type working tool, which belongs to the technical field of working tool devices.
- Knapsack-type work tools also known as backpack-type work tools
- Knapsack-type work tools are generally work tools that operators can carry with them for functional operations by carrying them on their shoulders, one shoulder, and diagonally. For working tools, it is more labor-saving, hands-free, and easy to operate.
- the common knapsack tools currently on the market include knapsack blowers, knapsack blowers, knapsack lawn mowers, knapsack sprayers and so on.
- the battery pack is detachably fixed in the power supply mounting seat, and the power supply mounting seat is usually integrated with the main body bracket, that is, the power supply mounting seat is directly formed on the main body bracket, and the power supply mounting seat cannot be removed from the main body bracket.
- the main body bracket is disassembled, wherein the disassembly in this application refers to the non-destructive or non-violent separation method between the power supply mounting seat and the main body bracket, excluding the power supply mounting seat and the main body bracket. Destructive or violent separation in which a structure is damaged.
- the purpose of the present invention is to provide a backpack-type working tool, the mounting seat of the battery pack of which can be disassembled from the main body bracket non-destructively.
- an embodiment provides a knapsack working tool, including:
- a power mechanism which is arranged in the carrying body bracket, and is used for outputting mechanical energy when the working tool is working;
- a power supply assembly including a power supply mounting seat, a battery pack and an integrated connector
- the battery pack can be assembled in the power supply mounting seat
- the power supply mounting seat is detachably mounted on the backpack main body bracket through the connecting piece, It also includes an integrated connector, the first end of the connector is fastened to the power supply mounting seat and the second end of the connector is fastened to the piggyback body bracket.
- the first end of the connector is fastened to the power supply mounting seat by screws, and the second end of the connector is fastened to the backpack body bracket by screws.
- the power supply mounting seat includes a first shell seat and a second shell seat, and the edge of the first shell seat is in snap-fit connection with the edge of the second shell seat, and the first shell seat is engaged with the edge of the second shell seat.
- the screws are fastened to the first housing seat, the second housing seat and the first end at the same time.
- the power mechanism includes a turbo blower
- the piggyback body bracket includes a volute that covers the turbo blower
- the power supply assembly is installed above the top of the piggyback body bracket, the first end is located on the front side of the power supply assembly, and the first end is also fastened to the top edge of the volute by a second screw,
- the connecting piece extends forward and downward from the top edge to the second end thereof and is fastened to the front portion of the volute by a third screw.
- one of the volute and the connecting member is provided with a limiting protrusion, and the other is provided with a limiting hole, and the limiting protrusion is in the front-rear direction. inserted into the limiting hole.
- the first screw passes through the second housing seat and the first housing seat from rear to front, and protrudes forward from the power supply mounting seat and is inserted into the in the first hole of the first end of the connector;
- the second screw passes through the second hole of the first end of the connecting piece from front to back, and is screwed back on the top edge of the volute;
- the third screw passes through the third hole at the second end of the connecting piece from front to back and is fastened to the volute, and the third hole is located below the limiting hole.
- the power supply mounting base has a power supply connection terminal, a battery pack insertion port, and an assembly cavity communicating with the battery pack insertion interface, and the power supply connection terminal is exposed to the assembly cavity Inside;
- the battery pack can be inserted into the assembling cavity or removed from the assembling cavity through the battery pack insertion port, wherein the battery pack is electrically connected to the power matching terminal when the battery pack is mounted on the power supply mounting seat. connected, the battery pack is separated from the power supply connection terminal when it is removed from the power supply mounting seat.
- the power supply assembly further includes a locking mechanism, the locking mechanism is movably mounted on the power supply mounting seat and has a locked state and an unlocked state;
- the locking mechanism In the locked state, the locking mechanism at least partially protrudes into the assembly cavity to lock the battery pack assembled in the power supply mounting seat;
- the locking mechanism unlocks the battery pack to allow the battery pack to be removed from the power mount.
- the locking mechanism includes:
- an unlocking key for receiving an unlocking operation outside the power supply mounting seat to make the locking mechanism change from the locked state to the unlocked state
- the hook has a trigger end matched with the unlocking key and a hook end matched with the battery pack.
- the hook end In the locked state, the hook end protrudes downward into the assembly cavity, In the unlocked state, under the push of the unlocking key to the trigger end, the hook end at least partially retracts upward out of the assembly cavity;
- the elastic reset member is connected between one of the unlocking key and the hook and the power supply mounting seat, so as to drive the locking mechanism to reset from the unlocking state to the locking state.
- the battery pack can be inserted into the assembly cavity along a first direction through the battery pack insertion port;
- the power supply connection terminal includes a spring terminal opposite to the battery pack insertion port along the first direction.
- the working tool is configured as a hair dryer.
- an embodiment of the present utility model has at least the following beneficial effects: the power supply mounting seat is detachably mounted on the carrying main body bracket through the connecting piece;
- the power supply components can be applied to different work tool products, and the versatility is strong;
- the overall assembly and disassembly of the work tool is less difficult, easy to assemble, simple and convenient, especially for the main body on the back
- the power supply assembly can be disassembled from the main body bracket as a whole, which is convenient and quick to disassemble, facilitates quick troubleshooting, and greatly improves the efficiency.
- FIG. 1 is a schematic three-dimensional structure diagram of a knapsack-type work tool according to an embodiment of the present invention
- FIG. 2 is an exploded view of a part of the three-dimensional structure of the knapsack working tool according to an embodiment of the present invention
- Fig. 3 is the enlarged view of A area in Fig. 2;
- FIG. 4 is a schematic three-dimensional structural diagram of a power supply assembly according to an embodiment of the present invention.
- Fig. 5 is the enlarged view of C area in Fig. 1;
- FIG. 6 is a schematic structural diagram of a backpack-type work tool according to an embodiment of the present invention from a front view angle;
- FIG. 7 is a partial cross-sectional schematic view of the power supply assembly along the E-E section line in FIG. 6;
- FIG. 8a is a schematic three-dimensional structural diagram of a connector according to an embodiment of the present invention.
- 8b is a schematic structural diagram of a connector according to an embodiment of the present invention from a front view angle
- 8c is a schematic structural diagram of a connector according to an embodiment of the present invention from a side view perspective;
- FIG. 9 is an exploded perspective view of a power supply assembly according to an embodiment of the present invention.
- FIG. 10 is a schematic structural diagram of a power supply assembly from a rear view angle according to an embodiment of the present invention.
- FIG. 11 is a schematic cross-sectional view along the B-B section line in FIG. 10 .
- the present embodiment provides a knapsack-type working tool 100 , that is, the working tool 100 is carried by an operator in a carrying manner to perform functional operations when in use.
- the work tool 100 specifically includes a strap assembly, a carrying body 3 , a power source assembly 4 , an operating handle 2 and a work execution assembly 1 .
- the strap assembly is used for the operator to carry the carrying body 3 on his body when using the working tool 100 .
- the harness assembly encircles the operator's body, and the main weight of the carrying body 3 is carried at its encirclement.
- the harness assembly it can be arranged around the waist of the operator and configured as a waist belt; it can also be arranged around the shoulders of the operator and configured as a shoulder strap.
- the shoulder straps surrounding the operator's shoulders may be located on one side of the body and configured as a single-shoulder strap, or may be placed diagonally across the body and configured as an oblique-straddle shoulder strap, or may be located on the side of the body.
- the sides are constructed as double shoulder straps.
- the carrying body 3 is supported on the operator's body through the harness assembly, and is generally configured as the core body of the work tool 100 to achieve its functional operation.
- the carrying main body 3 includes a carrying main body support 31 and a power mechanism arranged in the carrying main body support 31: the power mechanism can output mechanical energy to realize the functional operation of the working tool 100; the carrying main body support 31 can construct part of the appearance of the working tool 100 , which covers the power mechanism to protect the power mechanism, and can also assist in forming a passage (eg, an air duct described later) required for the functional operation of the working tool 100 .
- a passage eg, an air duct described later
- the work execution assembly 1 is usually connected to the carrying body 3 and extends longitudinally forward from the carrying body 3 , that is, one end 12 of the work execution assembly 1 is connected to the carrying body 3 , and the other end 12 opposite to the end 12 is connected to the carrying body 3 .
- the end portion 11 extends forward to the front of the operator, so that when the working tool 100 is in use, the end portion 11 can perform related functional operations on the object to be operated.
- the operation handle 2 is usually disposed on the work execution assembly 1 .
- the operation handle 2 can be held by the operator so as to facilitate various operation and control of the work tool 100 when the work tool 100 is working.
- the operator can operate the handle 2 by The position of the end portion 11 of the job execution assembly 1 can be adjusted, so that the end portion 11 changes for the corresponding object to be operated.
- the operating handle 2 includes an operating member 21 that receives an operating instruction, 22.
- the operating members 21 and 22 can be electrically connected to the driving member of the power mechanism (eg, connected to the electric motor described later, or connected to the igniter of the fuel engine, etc.) and the power supply assembly 4, thus, when the operator touches the operating members 21, 22, the operating members 21, 22 can receive the operation instructions corresponding to the touch action, and then control the work tool to work or stop the work, and make the said The working state of the power mechanism is controlled based on the operation command.
- the driving member of the power mechanism eg, connected to the electric motor described later, or connected to the igniter of the fuel engine, etc.
- the power supply assembly 4 includes a power supply mounting base 41 and a battery pack 42 .
- the power supply mounting seat 41 is used for fixedly assembling and supporting the battery pack 42 , which constitutes a basic support frame of the power supply assembly 4 ;
- the work tool 100 can be specifically implemented as a variety of different products.
- the working tool 100 is set as a hair dryer whose functional operation is air blowing.
- the power mechanism includes a turbo blower and a driving member that drives the turbo blower to rotate, and the rotational axis X of the turbo blower extends in the front-rear direction;
- the main body support 31 includes a main casing 312 covering the power mechanism, the main body The casing 312 is at least partially configured to cover the volute of the turbo blower;
- the work execution assembly 1 is configured to be an air outlet pipe extending forward from the air outlet of the volute.
- the turbine fan rotates around the rotation axis X, and drives the airflow to flow forward along the air duct surrounded by the volute through the air outlet pipe, until it reaches the air outlet from the air outlet pipe.
- the air outlet at the front end portion 11 blows out.
- the work tool 100 may also be configured as a suction fan, a blower, a lawn mower, a sprayer, etc.
- the power mechanism and the work execution assembly 1 are configured according to the specific settings of the work tool 100 . Corresponding changes are made, which will not be repeated here.
- the driving member is set as a fuel engine, and when the work tool 100 starts to work, the igniter of the fuel engine is electrically connected to the battery pack 42 to start, and then outputs mechanical energy to drive the turbine fan It rotates around the rotation axis X; of course, the driving member of this embodiment is not limited to this, for example, in a variant embodiment, the driving member can be set as a motor, and when the working tool 100 starts to work, the motor and the battery are connected to each other.
- the pack 42 is electrically connected and obtains electrical energy from the battery pack 42 , and then converts the electrical energy into mechanical energy and outputs it to drive the turbine fan to rotate around the rotation axis X.
- the power supply mount is generally integrated with the carrying body bracket, resulting in complex structure of the carrying main body support, difficult processing, poor versatility of the battery pack installation structure, and difficulty in the overall disassembly and assembly of the carrying body.
- a series of problems such as large size, cumbersome operation and low efficiency.
- the power supply assembly 4 of the power supply assembly 4 is detachably mounted on the piggyback main body bracket 31 as a whole, that is, the power supply mounting seat 41 and the piggyback main body bracket 31 are separately provided and detachably mounted on the piggyback main body bracket 31 , Therefore, compared with the prior art, on the one hand, the carrying body bracket 31 and the power supply mounting seat 41 are formed independently, and the processing difficulty is greatly reduced; On the other hand, the difficulty of the overall assembly and disassembly of the working tool 100 is reduced, the assembly is easy, simple and convenient, especially when the power mechanism in the carrying body bracket 31 is overhauled, the power supply assembly 4 can be integrated from the carrying body.
- the main body bracket 31 is disassembled, and the disassembly is convenient and fast, which is convenient and quick to troubleshoot, and the efficiency is greatly improved.
- disassembly in this application refers to a non-destructive or non-violent separation method between two components (such as the power supply assembly 4 and the carrying body bracket 31 ) A destructive or violent separation method in which either structure of the component 4 and the carrying body bracket 31) is damaged.
- the working tool 100 includes an integrally formed connecting piece 7 , and the power supply mounting base 41 is detachably mounted on the piggyback main body bracket 31 through the integral connecting piece 7 .
- the first end 71 of the connector 7 is fastened to the power supply mount 41
- the second end 72 of the connector 7 is fastened to the piggyback body bracket 31 .
- the power supply mount 41 and the piggyback main body bracket 31 are securely connected through the connector 7 to enhance the connection strength.
- the connecting member 7 can be set as a rigid metal plate, the first end 71 of the connecting member 7 is fastened to the power supply mounting base 41 by screws 93 , and the second end 72 of the connecting member 7 is fastened and connected by screws 95 .
- the main body bracket 31 is carried on its back. That is, the connecting member 7, the power supply mounting seat 41, and the carrying main body bracket 31 are all tightly connected by a screw structure, and this connection method is simple and convenient to disassemble.
- the power mounting base 41 includes a first housing base 411 and a second housing base 412 , and the edge 4110 of the first housing base 411 is in snap-fit connection with the edge 4120 of the second housing base 412 .
- the first shell seat 411 and the second shell seat 412 are relatively fastened in front and back, that is, the first shell seat 411 is located in front of the second shell seat 412, and the edge 4110 of the rear end of the first shell seat 411 is connected to the front of the second shell seat 412.
- the edge 4120 of the front end of the second shell seat 412 is buckled and connected; of course, in a variant embodiment, if the first shell seat 411 and the second shell seat 412 can also be relatively buckled up and down, or left and right relative to each other, or in other relative ways Orientation snap.
- the screws 93 are fastened to the first housing seat 411 , the second housing seat 412 and the first end 71 of the connector 7 at the same time, that is, the screws 93 are used to connect the first housing seat 411 and the second housing seat 412 At the same time, it is also used to realize the tightening connection between the power supply mounting seat 41 and the connecting piece 7, and it can be used for both purposes.
- the first end 71 of the connector 7 has two threaded holes 701 , the screws 93 penetrate the second housing 412 and the first housing 411 sequentially from the rear to the front, and protrude forward from the power supply mounting seat 41 and screw it in the threaded hole 701.
- the power mechanism includes a turbine fan and its rotation axis X extends in the front-rear direction
- the backpack main body bracket 31 includes a volute covering the turbine fan
- the power supply assembly 4 can be supported on the backpack Above the top of the main body bracket 31, specifically, it is installed above the top of the volute.
- the first end 71 of the connecting member 7 is also the upper end of the connecting member 7, which is located on the front side of the power supply assembly 4;
- the top edge 3122 of the volute is screwed backward through the threaded hole 70 , that is, the first end 71 of the connecting piece 7 is fastened and connected to the top edge 3122 of the carrying body bracket 31 through the screw 94 .
- the connecting piece 7 extends forward and downward from the top edge 3122 , and the second end 72 thereof is the lower end of the connecting piece 7 , which is located on the front side of the carrying body bracket 31 .
- the second end 72 is fastened to the front of the volute by means of screws 95.
- the second end 72 is provided with a threaded hole 703
- the front of the volute is provided with a protrusion 3121
- the screw 95 is directed from the front After passing through the threaded hole 703 and screwing it on the protrusion 3121 on the front of the volute.
- one of the volute and the connecting member 7 is provided with a limiting protrusion 3120, and the other is provided with a limiting hole 70, and the limiting protrusion 3120 is inserted in the limiting hole in the front-rear direction. 70 to define the position of the connecting piece 7 relative to the volute.
- the limiting protrusion 3120 is disposed on the front side of the volute so as to protrude forward, and the limiting hole 70 is provided in the connecting member 7; of course, in a modified embodiment, the limiting protrusion 3120 and The position of the limiting hole 70 can be interchanged.
- the threaded hole 703 is located below the limiting hole 70 , that is, the threaded hole 703 is lower than the limiting hole 70 in the vertical direction, or the threaded hole 703 is closer to the lower end edge of the connecting piece 7 than the limiting hole 70 , which can enhance the connection strength.
- the piggyback body bracket 31 further includes a mounting body 311 located outside the main casing 312 , which is specifically located above the volute.
- the edge 4110 of the first housing 411 and the edge 4120 of the second housing 412 are clamped and fixed to the outside of the mounting body 311 together, that is, the mounting body 311 is clamped between the edge 4110 of the first housing 411 and the second housing
- the power supply mounting seat 41 is surrounded by the mounting body 311, so that the power supply mounting seat 41 can be fixedly installed on the main body support 31.
- the seat 41 has strong versatility on different carrying bodies 3 .
- a mounting hole 410 for fitting the mounting body 311 is formed between the edge 4110 of the first housing 411 and the edge 4120 of the second housing 412 .
- the edge 4110 of the first housing 411 has a first notch groove 4102
- the edge 4120 of the second housing 412 has a second notch groove 4101
- the edge 4110 of the first housing 411 and the second housing 412 When the edges 4120 of the first notch are fastened together, the first notch groove 4102 and the second notch groove 4101 are just opposite to each other, the installation hole 410 is enclosed by the first notch groove 4102 and the second notch groove 4101, and the installation body 311 is accommodated in the installation hole 410.
- the mounting hole 410 and the mounting body 311 are set in a corresponding circular shape.
- the shape of the two is not limited to this, and may also be set in a square, hexagonal or any other suitable shape.
- the mounting body 311 is configured as a hollow tube body in this embodiment, and an electric wire 5 is passed through it.
- One end of the electric wire 5 is connected to the power mechanism, and the other end of the electric wire 5 is connected to the operation
- the handle 2 is specifically connected to the operating members 21 and 22 of the operating handle 2 , that is, the operating members 21 and 22 can be electrically connected to the power mechanism through the electrical wires 5 , so as to realize the manipulation of the power mechanism through the operating members 21 and 22 working status.
- the mounting body 311 is configured as a protection tube of the electric wire 5, and the power supply mounting base 41 is fixedly installed on the protection tube of the electric wire 5, so as to realize the integrated multi-purpose of the protection tube, the assembly is simple and fast, and the versatility is strong.
- the specific arrangement of the mounting body 311 is not limited to this.
- the mounting body 311 may not be used as a protection tube for the electrical wire 5 , but be configured as a rod-shaped cantilever erected outside the main casing 312 .
- the power supply mounting base 41 has two side walls opposite to the left and right, and each of the two side walls is formed with a mounting hole 410 that corresponds to the mounting body 311 one-to-one. That is, the left side wall of the power supply mounting seat 41 is provided with a mounting hole 410, and the mounting hole 410 is matched with the mounting body 311-2 as shown in the figure; the right side wall of the power supply mounting seat 41 is provided with A mounting hole 410, the mounting hole 410 is matched with the mounting body 311-1 as shown in the figure.
- the hole wall of the mounting hole 410 and the outer wall of the mounting body 311 are provided with a concave-convex structure that is snap-fitted to each other, and the concave-convex structure prevents the mounting body 311 from escaping from the mounting hole 410 outwardly or inwardly penetrating the mounting hole 410
- the concave-convex structure is used to limit the position of the mounting body 311 and the mounting hole 410 in the left and right directions, preventing the mounting body 311 from moving left and right relative to the mounting hole 410, so that, on the one hand, the mounting body 311 is prevented from being separated from the outside.
- the mounting holes 410 can ensure the stability of the installation between the power supply mounting base 41 and the mounting body 311 , prevent the power supply mounting base 41 from detaching from the mounting body 311 , and prevent the mounting body 311 from going deep into the mounting holes 410 , which can avoid the mounting body 311 Accidentally penetrates into the interior of the power supply mounting seat 41 and bruises important components located in the power supply mounting seat 41 (for example, the control circuit board 43 described later).
- the outer wall of the mounting body 311 is provided with a concave-convex structure 3110 , and the concave-convex structure 3110 extends around the circumference of the mounting body 311 to form an annular groove.
- the concave-convex structure of the hole wall of the mounting hole 410 is set to match the concave-convex structure 3110 When the edge 4110 of the first housing 411 and the edge 4120 of the second housing 412 are hooped and fixed to the outside of the mounting body 311 together, the annular rib is just embedded in the annular groove.
- first shell seat 411 and the second shell seat 412 are fastened and connected by several screws.
- two threaded holes 4121 are provided near the left and right ends of the upper portion of the second housing base 412 , and the lower portion of the second housing base 412 has two threaded holes 4122 ; correspondingly, the first housing base 411 has two threaded holes 4122 .
- threaded holes 4111 corresponding to the two threaded holes 4121 one-to-one near the left and right ends of the upper part
- the lower part of the first housing 411 has two threaded holes 4112 corresponding to the two threaded holes 4122 one-to-one
- two screws 91 are screwed into the threaded holes 4111 and 4121, respectively
- the two screws 92 are screwed into the threaded holes 4112 and 4122, respectively, so that the first housing 411 and the second housing 412 are securely connected .
- first shell seat 411 and the second shell seat 412 are relatively fastened along the first direction, and correspondingly, the screws 91 and 92 are screwed in or out along the first direction to fasten the first shell.
- the base 411 and the second base 412 in this way, the screw 91, 92 can increase with the screw precess, so that the hoop is fixed between the edge 4110 of the first base 411 and the edge 4120 of the second base 412
- the position of the mounting body 311 is firmer, and the hoop is tighter.
- the first housing seat 411 and the second housing seat 412 are relatively fastened in front and rear, and accordingly, the screws 91 and 92 are screwed in or out in the front and rear directions, so that the mounting body 311 is removed from the front and rear directions.
- the edge 4110 of the first housing 411 is tightly hooped with the edge 4120 of the second housing 412 .
- the relative orientations of the first housing seat 411 and the second housing seat 412 are changed, and the precession directions of the screws 91 and 92 are also changed synchronously, which will not be repeated.
- the power supply mounting base 41 has a battery pack insertion port 4130 and an assembly cavity 413 communicating with the battery pack insertion port 4130 , and the battery pack 42 can be inserted into the assembly cavity 413 through the battery pack insertion port 4130 or from the assembly cavity 413 .
- the assembly cavity 413 is removed; the power supply mounting base 41 also has power matching terminals 452 and 453 , and the power matching terminals 452 and 453 are exposed in the assembly cavity 413 .
- the battery pack 42 When the battery pack 42 is assembled on the power supply mounting seat 41 , that is, when it is inserted into the mounting cavity 413 , the battery pack 42 is in its mounting position relative to the power supply mounting seat 41 , and the battery pack 42 is in contact with the power supply mating terminals 452 and 453 .
- the electrical energy of the battery pack 42 can be output to the power mechanism or other electrical components of the work tool 100 through the power supply terminals 452 and 453 ; when the battery pack 42 is removed from the power supply mounting seat 41 , it is also When 413 is removed, the battery pack 42 is in its detached position relative to the power supply mount 41 , and the battery pack 42 is separated from the power supply terminals 452 and 453 , so that the battery pack 42 no longer provides power to the work tool 100 .
- the power supply assembly 4 further includes a control circuit board 43 disposed inside the power supply mounting base 41 .
- the first housing base 411 and the second housing base 412 are buckled together to enclose an internal cavity, and control the The circuit board 43 is accommodated in the cavity, and is fixedly assembled with the first housing 411 and the second housing 412 .
- the power supply assembly 4 further includes a terminal bracket 451 fixed on the circuit control board 43 , and the power matching terminal 453 is mounted on the terminal bracket 451 and extends upward into the assembly cavity 413 .
- the power supply assembly 4 further includes a locking mechanism, which is movably mounted on the power supply mounting base 41 and has a locked state and an unlocked state. 11, in the locked state, the locking mechanism at least partially protrudes into the assembly cavity 413, thereby locking the battery pack 42 assembled in the power supply mounting seat 41, that is, locking the battery pack 42 In the assembling position; in the unlocking state, the locking mechanism unlocks the battery pack 42, thereby allowing the battery pack 42 to be removed from the power supply mounting seat 41, that is, allowing the battery pack 42 to move from the assembling position to the battery pack 42. Remove position movement.
- a locking mechanism which is movably mounted on the power supply mounting base 41 and has a locked state and an unlocked state. 11, in the locked state, the locking mechanism at least partially protrudes into the assembly cavity 413, thereby locking the battery pack 42 assembled in the power supply mounting seat 41, that is, locking the battery pack 42 In the assembling position; in the unlocking state, the locking mechanism unlocks the battery pack 42, thereby allowing the
- the locking mechanism includes an unlock key 441 , a hook 442 and an elastic reset member 443 .
- the unlocking key 441 is exposed on the upper portion of the power supply mounting base 41 and receives an unlocking operation outside the power supply mounting base 41 , so that the locking mechanism changes from the locked state to the unlocked state.
- the operator needs to remove the battery pack 42 from the power supply mounting seat 41 , the operator can make the locking mechanism release the battery pack 42 through the unlocking operation of pressing the unlock key 441 downward.
- the hook 442 is provided as a single piece, which has a trigger end 4422 matched with the unlock key 441 and a hook end 4421 matched with the battery pack 42 .
- the trigger end 4422 is located below the unlock key 441 ; the upper surface of the battery pack 42 has a card slot 420 .
- the hook end 4421 protrudes downward into the assembling cavity 413, and if the battery pack 42 is in the assembling position, the hook end 4421 is just inserted into the slot 420 to prevent The battery pack 42 is withdrawn from the assembly cavity 413; in the unlocked state, the unlock key 441 is pressed down, and under the push of the unlock key 441 to the trigger end 4422, the trigger end 4422 moves downward, and the corresponding hook end 4421 moves upward
- the battery pack 42 is no longer locked by the hook end 4421 by being lifted and at least partially retracted out of the assembly cavity 413 .
- the elastic reset member 443 is connected between one of the unlocking key 441 and the hook 442 and the power supply mounting base 41 .
- the elastic restoring member 443 In the unlocked state, under the unlocking operation of the operator, the elastic restoring member 443 is forced to elastically deform; when the unlocking operation of the operator is cancelled, for example, when the finger is removed from the unlocking key 441, the elastic restoring member 443 itself is elastic. reset to drive the locking mechanism to reset from the unlocked state to the locked state.
- the elastic reset member 443 is a compression spring clamped between the trigger end 4422 of the hook 442 and the power supply mounting base 41 .
- the setting position of the elastic reset member 443 is not limited to this.
- its specific type is not limited to compression springs, but can also be tension springs, torsion springs or other elastic bodies.
- the battery pack 42 can be inserted into the assembly cavity 413 from the rear to the front through the battery pack insertion port 4130 ; correspondingly, the power matching terminal 452 includes a front-to-rear direction opposite to the battery pack insertion port 4130 .
- the provided spring terminal is specifically arranged at the front bottom end of the assembly cavity 413, when the locking mechanism changes from the locked state to the unlocked state, that is, when the operator presses the unlock key 441
- the hook end 4421 exits the assembly cavity 413 upward at least partially, the battery pack 42 is unlocked at this time, and the spring terminal pushes the battery pack 42 from the front to the rear to eject the battery pack insertion port 4130, so that by pressing a button
- the unlocking key 441 can realize the automatic ejection of the battery pack 42 after unlocking, which is convenient for the battery pack 42 to be removed from the power supply mounting seat 41, and the installation and removal operations of the battery pack 42 are simple and convenient.
- the present embodiment has the following beneficial effects: the power supply assembly 4 is detachably mounted on the piggyback main body bracket 31 as a whole, and the power supply mounting seat 41 is installed on the piggyback main body bracket 31 through the connector 7.
- the piggyback main body The bracket 31 and the power supply mount 41 are formed independently, and the processing difficulty is greatly reduced; on the other hand, the power supply assembly 4 can be applied to different work tool products, and has strong versatility; on the other hand, the overall assembly and disassembly of the work tool 100
- the difficulty is reduced, the assembly is easy, simple and convenient, especially when overhauling the power mechanism in the carrying main body bracket 31, the power supply assembly 4 can be disassembled from the carrying main body bracket 31 as a whole, which is convenient and quick to disassemble, and convenient and quick to troubleshoot. , the efficiency is greatly improved.
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Abstract
Description
Claims (10)
- 一种背负式作业工具,包括:A knapsack work tool comprising:背负主体支架;Carry the main body bracket;动力机构,配置于所述背负主体支架内,其用于在所述作业工具进行作业时输出机械能;其特征在于,所述作业工具还包括,The power mechanism is arranged in the carrying body bracket, and is used for outputting mechanical energy when the working tool is working; characterized in that, the working tool further comprises:电源组件,包括电源安装座、电池包以及一体连接件,所述电池包可装配于所述电源安装座中,所述电源安装座通过所述连接件可拆卸地安装于所述背负主体支架,所述连接件的第一端紧固连接所述电源安装座且其第二端紧固连接所述背负主体支架。a power supply assembly, including a power supply mounting seat, a battery pack and an integrated connector, the battery pack can be assembled in the power supply mounting seat, and the power supply mounting seat is detachably mounted on the backpack main body bracket through the connecting piece, The first end of the connector is fastened to the power supply mounting seat and the second end of the connector is fastened to the piggyback body bracket.
- 根据权利要求1所述的背负式作业工具,其特征在于,所述连接件的第一端通过螺钉紧固连接所述电源安装座,且所述连接件的第二端通过螺钉紧固连接所述背负主体支架。The knapsack working tool according to claim 1, wherein the first end of the connector is fastened to the power supply mounting seat by screws, and the second end of the connector is fastened to the power supply by screws. Described carrying the main body bracket.
- 根据权利要求2所述的背负式作业工具,其特征在于,所述电源安装座包括第一壳座和第二壳座,所述第一壳座的边缘与所述第二壳座的边缘扣合相接,第一螺钉同时紧固配接于所述第一壳座、所述第二壳座和所述第一端。The knapsack type working tool according to claim 2, wherein the power supply mounting base comprises a first housing base and a second housing base, and the edge of the first housing base is buckled with the edge of the second housing base The first screw is fastened to the first shell seat, the second shell seat and the first end at the same time.
- 根据权利要求3所述的背负式作业工具,其特征在于,所述动力机构包括涡轮风机,所述背负主体支架包括包覆所述涡轮风机的蜗壳;The knapsack type work tool according to claim 3, wherein the power mechanism comprises a turbo blower, and the knapsack main body bracket comprises a volute covering the turbo blower;所述电源组件安装于所述背负主体支架的顶部上方,所述第一端位于所述电源组件的前侧,所述第一端还通过第二螺钉紧固连接所述蜗壳的顶部边缘,所述连接件自所述顶部边缘向前向下延伸至其第二端通过第三螺钉紧固连接于所述蜗壳的前部。The power supply assembly is installed above the top of the piggyback body bracket, the first end is located on the front side of the power supply assembly, and the first end is also fastened to the top edge of the volute by a second screw, The connecting piece extends forward and downward from the top edge to the second end thereof and is fastened to the front portion of the volute by a third screw.
- 根据权利要求4所述的背负式作业工具,其特征在于,所述蜗壳和所述连接件的二者其一设置有限位凸起,且二者另一设置有限位孔,所述限位凸起在前后方向上插置于所述限位孔中。The backpack type working tool according to claim 4, wherein one of the volute and the connecting member is provided with a limiting protrusion, and the other is provided with a limiting hole, and the limiting The protrusion is inserted into the limiting hole in the front-rear direction.
- 根据权利要求4所述的背负式作业工具,其特征在于,所述第一螺钉由后向前穿过所述第二壳座和所述第一壳座,且向前凸伸出所述电源安装座并插 接于所述连接件的第一端的第一孔中;The knapsack working tool according to claim 4, wherein the first screw passes through the second housing seat and the first housing seat from rear to front, and protrudes forward from the power source the mounting seat is inserted into the first hole of the first end of the connector;所述第二螺钉由前向后穿过所述连接件的第一端的第二孔,并且向后旋紧于所述蜗壳的顶部边缘;The second screw passes through the second hole of the first end of the connecting piece from front to back, and is screwed back on the top edge of the volute;所述第三螺钉由前向后穿过所述连接件的第二端的第三孔并旋紧于所述蜗壳的前部,所述第三孔位于所述限位孔的下方。The third screw passes through the third hole at the second end of the connecting piece from front to back and is fastened to the front part of the volute, and the third hole is located below the limiting hole.
- 根据权利要求1所述的背负式作业工具,其特征在于,所述电源安装座具有电源配接端子、电池包插接口、以及连通所述电池包插接口的装配腔,所述电源配接端子暴露于所述装配腔内;The knapsack type work tool according to claim 1, wherein the power supply mounting base has a power supply connection terminal, a battery pack insertion interface, and an assembly cavity connected to the battery pack insertion interface, and the power supply connection terminal exposed in the assembly cavity;所述电池包可通过所述电池包插接口插装入所述装配腔或从所述装配腔取下,其中,所述电池包装配于所述电源安装座时与所述电源配接端子电连接,所述电池包从所述电源安装座取下时与所述电源配接端子相分离;The battery pack can be inserted into the assembling cavity or removed from the assembling cavity through the battery pack insertion port, wherein the battery pack is electrically connected to the power matching terminal when the battery pack is mounted on the power supply mounting seat. connected, the battery pack is separated from the power supply terminal when it is removed from the power supply mounting seat;所述电源组件还包括锁止机构,所述锁止机构活动安装于所述电源安装座并具有锁止状态和解锁状态;The power supply assembly further includes a locking mechanism, the locking mechanism is movably mounted on the power supply mounting seat and has a locked state and an unlocked state;于所述锁止状态时,所述锁止机构至少部分凸伸入所述装配腔内以将装配于所述电源安装座中的所述电池包锁定;In the locked state, the locking mechanism at least partially protrudes into the assembly cavity to lock the battery pack assembled in the power supply mounting seat;于所述解锁状态时,所述锁止机构解锁所述电池包以允许所述电池包从所述电源安装座取下。In the unlocked state, the locking mechanism unlocks the battery pack to allow the battery pack to be removed from the power mount.
- 根据权利要求7所述的背负式作业工具,其特征在于,所述锁止机构包括:The knapsack work tool of claim 7, wherein the locking mechanism comprises:解锁键,于所述电源安装座外部接收解锁操作以使所述锁止机构由所述锁止状态变化为所述解锁状态;an unlocking key for receiving an unlocking operation outside the power supply mounting seat to make the locking mechanism change from the locked state to the unlocked state;卡勾,具有配合于所述解锁键的触发端和与所述电池包适配的卡钩端,于所述锁止状态时,所述卡钩端凸伸入所述装配腔内,于所述解锁状态,在所述解锁键对所述触发端的推动下,所述卡钩端至少部分地回缩出所述装配腔;The hook has a trigger end matched with the unlocking key and a hook end matched with the battery pack. In the locked state, the hook end protrudes into the assembly cavity, and the hook end protrudes into the assembly cavity. In the unlocked state, the hook end is at least partially retracted out of the assembly cavity under the push of the unlock key to the trigger end;弹性复位件,连接于所述解锁键与所述卡勾的二者其一和所述电源安装座之间,以驱使所述锁止机构由所述解锁状态复位至所述锁止状态。The elastic reset member is connected between one of the unlocking key and the hook and the power supply mounting seat, so as to drive the locking mechanism to reset from the unlocking state to the locking state.
- 根据权利要求7所述的背负式作业工具,其特征在于,所述电池包可通 过所述电池包插接口沿第一方向插装入所述装配腔;The knapsack working tool according to claim 7, wherein the battery pack can be inserted into the assembly cavity along a first direction through the battery pack insertion port;所述电源配接端子包括与所述电池包插接口沿所述第一方向相对设置的弹簧端子,在所述锁止机构由所述锁止状态变化为所述解锁状态时,所述弹簧端子推动所述电池包向所述电池包插接口弹出。The power supply connection terminal includes a spring terminal opposite to the battery pack insertion port along the first direction. When the locking mechanism changes from the locked state to the unlocked state, the spring terminal Push the battery pack to pop out to the battery pack insertion port.
- 根据权利要求1所述的背负式作业工具,其特征在于,所述作业工具设置为吹风机。The knapsack work tool of claim 1, wherein the work tool is configured as a hair dryer.
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CN202022300088.2U CN213546487U (en) | 2020-10-15 | 2020-10-15 | Backpack type working tool |
CN202022300088.2 | 2020-10-15 |
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WO2022077559A1 true WO2022077559A1 (en) | 2022-04-21 |
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Citations (6)
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WO2016171031A1 (en) * | 2015-04-20 | 2016-10-27 | 株式会社マキタ | Backpack-type air blower work machine |
CN205884081U (en) * | 2016-02-22 | 2017-01-18 | 常州格力博有限公司 | Backpack working apparatus |
CN206931628U (en) * | 2017-03-28 | 2018-01-26 | 苏州科瓴精密机械科技有限公司 | Battery pack assembly, electric tool, assembling structure, gasoline engine and garden instrument |
US20180034022A1 (en) * | 2016-07-28 | 2018-02-01 | ETAK Systems, LLC | De-celling batteries for installation in telecommunication sites |
CN107919447A (en) * | 2016-10-11 | 2018-04-17 | 株式会社山彦 | Backpack supply unit |
CN210537528U (en) * | 2018-08-20 | 2020-05-19 | 苏州科瓴精密机械科技有限公司 | Garden tool |
-
2020
- 2020-10-15 CN CN202022300088.2U patent/CN213546487U/en active Active
- 2020-10-27 WO PCT/CN2020/123999 patent/WO2022077559A1/en active Application Filing
Patent Citations (6)
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WO2016171031A1 (en) * | 2015-04-20 | 2016-10-27 | 株式会社マキタ | Backpack-type air blower work machine |
CN205884081U (en) * | 2016-02-22 | 2017-01-18 | 常州格力博有限公司 | Backpack working apparatus |
US20180034022A1 (en) * | 2016-07-28 | 2018-02-01 | ETAK Systems, LLC | De-celling batteries for installation in telecommunication sites |
CN107919447A (en) * | 2016-10-11 | 2018-04-17 | 株式会社山彦 | Backpack supply unit |
CN206931628U (en) * | 2017-03-28 | 2018-01-26 | 苏州科瓴精密机械科技有限公司 | Battery pack assembly, electric tool, assembling structure, gasoline engine and garden instrument |
CN210537528U (en) * | 2018-08-20 | 2020-05-19 | 苏州科瓴精密机械科技有限公司 | Garden tool |
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