CN102948301B - Mower and docking charging system - Google Patents
Mower and docking charging system Download PDFInfo
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- CN102948301B CN102948301B CN201210163748.4A CN201210163748A CN102948301B CN 102948301 B CN102948301 B CN 102948301B CN 201210163748 A CN201210163748 A CN 201210163748A CN 102948301 B CN102948301 B CN 102948301B
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- 238000003032 molecular docking Methods 0.000 title claims abstract description 26
- 238000005520 cutting process Methods 0.000 claims abstract description 16
- 239000000428 dust Substances 0.000 claims description 14
- 210000001503 joint Anatomy 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 claims 1
- 230000009471 action Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/76—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of mower, comprise housing, wheel, cutting blade, cutting motor and power supply module.Described housing is provided with the charging slot to enclosure interior depression, described power supply module has the charging terminal for transmitting energy or signal, described charging terminal is arranged in described charging slot, charging terminal is made not to be exposed to the outside of housing, can not be drenched by rainwater and corrode, avoid charging terminal loose contact, prevent charging terminal, because of collision, deformation occurs.Present invention also offers a kind of docking charging system.
Description
Technical Field
The invention relates to a mower and a butt joint charging system.
Background
With the continuous progress of computer technology and artificial intelligence technology, automatic working systems similar to intelligent robots have started to slowly move into people's lives. Samsung, irex, etc., have developed fully automatic cleaners and have been put on the market. The full-automatic dust collector is small in size, integrates an environment sensor, a self-driving system, a dust collection system, a battery and a charging system, can automatically return to a charging station when the energy is low without manual control, automatically cruises indoors, is butted and charged, and then continues crusing and dust collection. Meanwhile, companies such as hasskarna developed similar intelligent lawn mowers that can automatically mow and charge in a user's lawn without user intervention. The automatic working system is greatly popular because the user is freed from tedious and time-consuming housework such as cleaning, lawn maintenance and the like without being invested in energy management after being set once.
In the conventional lawn mower, the charging terminal is usually disposed on the top of the front end, and the charging terminal protrudes outward. When charging, the charging terminal upwards supports against the power supply terminal of the charging station, and the butt joint mode is simple. However, the externally exposed charging terminals are easily wetted by rain water or other liquids, and thus are corroded, so that the charging terminals are not well contacted and even short-circuited and burned. In addition, the charging terminal exposed to the outside is also easily deformed by the collision of the lawnmower with an external object. There is therefore a need for improvements to existing lawn mowers and charging stations.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the mower with the charging terminal which is not easy to be wetted by rainwater and not easy to corrode.
The technical scheme of the invention is realized as follows: a lawn mower, comprising: a housing; a plurality of wheels arranged at the bottom of the shell; a cutting blade for performing a cutting operation; a cutting motor driving the cutting blade; the power supply module is arranged in the shell and used for supplying power to the cutting motor; the shell is provided with a charging groove which is sunken towards the inside of the shell, the power supply module is provided with a charging terminal used for transmitting energy or signals, and the charging terminal is arranged in the charging groove.
Preferably, the lawn mower is an automatic lawn mower, and the automatic lawn mower further comprises a traveling motor and a transmission mechanism which are arranged in the shell, wherein the transmission mechanism is connected with the traveling motor and the wheels.
Preferably, the charging slot is located at a front middle portion of the housing.
Preferably, the height of the bottom wall of the charging slot from the bottom edge of the wheel is at least 40 mm.
Preferably, the charging slot extends longitudinally towards the interior of the housing.
Preferably, the width of the charging slot is gradually reduced from the opening of the charging slot to the end of the charging slot.
Preferably, the charging slot includes a first groove and a second groove, and the first groove and the second groove are separated by a partition plate.
Preferably, the charging terminal is a block structure, a sheet structure, or a rod structure.
Preferably, the charging terminal is fixedly coupled to a sidewall inside the charging slot.
Further, a thin plate perpendicular to a bottom wall of the charging groove is provided in the charging groove, and the charging terminal is provided on the thin plate.
Still further, the charging terminal includes a post provided on the thin plate, and the thin plate or the post is formed of an elastic material.
Preferably, the charging terminal is rotatably coupled to a sidewall in the charging slot.
Furthermore, the charging terminal comprises an elastic sheet and a spring, the top wall of the charging groove is provided with two protruding connecting parts, the elastic sheet of the charging terminal is respectively connected with the two connecting parts in a rotating manner, the spring is connected to the connecting parts in a shaft coupling manner, a first supporting leg of the spring is fixedly connected with the connecting parts, and a second supporting leg of the spring is abutted to the elastic sheet.
Preferably, the charging terminal includes a first terminal and a second terminal, each of the first terminal and the second terminal includes at least one main terminal and one sub terminal that can be docked with an external power supply terminal, and at least one of the main terminal and the sub terminal is docked with the external power supply terminal when the charging terminal is docked with the external power supply terminal.
Preferably, the lawn mower further comprises a dust-proof member that at least partially blocks the charging slot.
Further, the dustproof component is a dustproof plate movably connected to the charging groove.
Further, the dust-proof plate is disposed at a position where the side wall in the charging slot is close to the opening.
Furthermore, the dust-proof plate is rotatably connected to the side wall in the charging groove.
Further, the distance between the charging terminal and the charging slot opening is larger than the distance between the dust-proof plate and the charging slot opening, when the charging terminal is in an initial state of not being butted with an external power supply terminal, the dust-proof plate at least partially blocks the charging slot opening and at least partially covers the charging terminal, and after the charging terminal is in a butted state with the external power supply terminal, the dust-proof plate and the charging terminal are both butted against the side surface of the external power supply terminal.
Further, the charging terminal is rotatably connected to the sidewall in the charging slot, and a distance between a pivot of the charging terminal and a pivot of the dust-proof plate is larger than a rotation radius of the dust-proof plate.
Further, the charging terminal and the dust-proof plate are respectively disposed on two opposite side walls in the charging slot, and when the charging terminal is in a butt joint state with an external power supply terminal, the dust-proof plate and the charging terminal are in opposite butt joint with two opposite side surfaces of the external power supply terminal.
Further, the dust-proof plate is made of an insulating material.
Furthermore, the dust-proof plate is made of a conductive material and is electrically connected with the charging terminal.
Further, the dustproof part is a dustproof brush, and the dustproof brush comprises a brush frame and a flexible brush piece connected with the brush frame.
Further, the brush holder is fixed to the top of the charging slot opening.
The invention also provides a butt-joint charging system with the mower and a charging station, wherein the charging station comprises: a base; a power terminal fixedly or removably extendable from the base, the power terminal extending into a charging slot of the lawn mower and interfacing with the charging terminal when the charging station is performing energy or signal transfer to the lawn mower.
Preferably, the charging terminal includes at least a first terminal and a second terminal, the power supply terminal includes at least a third terminal and a fourth terminal, and when the charging station transmits energy or signals to the lawn mower, the third terminal and the fourth terminal are electrically connected to the first terminal and the second terminal, respectively.
Further, the base comprises a main body and a charging tongue connected with the main body, the height of the tail end of the charging tongue relative to the bottom of the base is flush with the height of a charging groove of the mower, the third terminal and the fourth terminal are arranged at the tail end of the charging tongue, and when the charging station transmits energy or signals to the mower, the charging tongue extends into the charging groove of the mower.
Further, the third terminal and the fourth terminal are respectively disposed on two outer walls opposite to the charging tongue, and a horizontal distance from at least a portion of the charging tongue to the main body is greater than a horizontal distance from the third terminal or the fourth terminal to the main body.
Further, the third terminal is parallel to the fourth terminal, when the charging terminal is butted with the power terminal, the first terminal laterally or vertically presses against the third terminal, and the second terminal laterally or vertically presses against the fourth terminal.
Further, the third terminal and the fourth terminal are both column-shaped bodies extending outwards from the base.
Preferably, the charging station further comprises a shielding part, the shielding part extends out of the top of the base and is located above the power terminal, the shielding part completely shields the power terminal from the top, and the distance between the shielding part and the power terminal is larger than the vertical distance between the top of the housing of the mower and the charging slot.
Preferably, the charging station further comprises a base plate, the base is located on the base plate, and when the charging station transmits energy or signals to the mower, the mower is located on the base plate integrally.
Through set up sunken charging tank on the casing of lawn mower, charging terminal sets up in charging tank for charging terminal does not expose in the outside of casing, can not drenched by the rainwater and take place to corrode, has avoided charging terminal contact failure, has prevented that charging terminal from taking place deformation because of the collision.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a side view of a docking charging system according to a first preferred embodiment of the present invention.
FIG. 2 is a schematic top view of the robotic lawnmower of the first preferred embodiment of the invention prior to docking with a charging station.
FIG. 3 is a top view of the robotic lawnmower docked with the charging station in accordance with the first preferred embodiment of the invention.
Fig. 4 is a partial top view of a docking charging system according to a second preferred embodiment of the present invention.
Fig. 5 is a schematic partial cross-sectional view taken along line a-a of fig. 4.
Fig. 6 is a partial top view of a third preferred embodiment of the docking charging system of the present invention.
Fig. 7 is a schematic partial cross-sectional view taken along line B-B in fig. 6.
Fig. 8 is a partial top view of a docking charging system according to a fourth preferred embodiment of the present invention.
Fig. 9 is a schematic partial cross-sectional view taken along line C-C of fig. 8.
Fig. 10 is a partial top view of a fifth preferred embodiment of the docking charging system of the present invention.
Fig. 11 is a schematic partial cross-sectional view taken along line D-D in fig. 10.
Fig. 12 is a partial top view of a docking charging system according to a sixth preferred embodiment of the present invention.
Fig. 13 is a schematic partial cross-sectional view taken along line E-E of fig. 12.
Fig. 14 is a partial top view of a seventh preferred embodiment of the docking charging system of the present invention.
Fig. 15 is a schematic partial cross-sectional view taken along line F-F in fig. 14.
FIG. 16 is a perspective view of the robotic lawnmower of FIG. 14.
Fig. 17 is a partial top view of an eighth preferred embodiment of the docking charging system of the present invention.
Fig. 18 is a schematic partial cross-sectional view taken along line G-G in fig. 17.
Wherein,
100. an automatic mower; 200. a charging station; 10. a housing;
20. a wheel; 30. a travel motor; 40. a power supply module;
41. a charging terminal; 42. a first circuit board; 43. a battery;
11. a top portion; 12. a bottom; 13. a front end;
14. a charging slot; 411. a first terminal; 412. a second terminal;
413. a first thin plate; 414. a convex column; 415. a second thin plate;
210. a base; 212. a main body; 220. a charging tongue;
230. a power line; 240. a shielding portion; 250. a base plate;
260. a power supply terminal; 261. a third terminal; 262. a fourth terminal;
211. a second circuit board; 50. a thin plate; 52. an insulating block;
54. 64, a spring; 60. a connecting portion; 62. a spring plate;
70. a hook portion; 411a, a first main terminal; 412a, a second main terminal;
412b, a second secondary terminal; 81. a first dust-proof plate; 82. a second dust-proof plate;
83. a baffle plate; 61. 84, a pivot; 65. a partition plate;
66. a brush; 661. a brush holder; 662. brushing;
Detailed Description
Referring to fig. 1, a docking charging system includes a lawn mower and a charging station 200. The lawn mower travels within a limit and performs a mowing operation, and the charging station 200 is used for returning supplementary energy to the lawn mower when the energy is insufficient.
In the present embodiment, the lawnmower is an automatic lawnmower 100. The robotic lawnmower 100 includes a housing 10 extending in a longitudinal direction, a plurality of wheels 20 disposed on a bottom 12 of the housing 10, a travel motor 30 disposed within the housing 10, a transmission mechanism (not shown) connecting the travel motor 30 to the wheels 20, a power module 40 for powering the travel motor 30, a cutting blade (not shown) for performing cutting operations, and a cutting motor (not shown) for driving the cutting blade.
The power supply module 40 includes a charging terminal 41, a first circuit board 42 and a battery 43. The charging terminal 41 is used to contact and electrically connect with an external power supply terminal to transmit power or a signal. The battery 43 is used for receiving and storing energy or signals transmitted from the charging terminal 41 and the first circuit board 42. The first circuit board 42 controls the state of the travel motor 30 according to the connection state of the charging terminal 41 and the external power terminal, and if the charging terminal 41 is connected to the external power terminal, the first circuit board controls the travel motor 30 to stop operating.
The middle of the front end 13 between the top 11 and the bottom 12 of the housing 10 is provided with a charging slot 14 depressed towards the inside of the housing 10, and the charging slot 14 extends longitudinally towards the inside of the housing. In the present embodiment, the charging slot 14 extends horizontally in the vertical direction toward the inside of the housing, and the front end 13 of the housing 10 is a smooth curved surface. In other embodiments, the front end 13 may be flat or have other suitable shapes.
The wheel 20 is adapted to roll on the ground and the bottom edge of the wheel 20 is tangent to the ground. The height of the bottom wall of the charging slot 14 from the bottom edge of the wheels 20 is at least 40mm, so that the charging slot 14 does not collide with a general obstacle during the mowing operation of the robotic lawnmower 100. In this embodiment, the height of the bottom wall of the charging tank 14 from the bottom edge of the wheel 20 is 83.5mm, and the height of the top wall of the charging tank 14 from the bottom edge of the wheel 20 is 123 mm.
Referring to fig. 2, the charging terminal 41 includes a first terminal 411 and a second terminal 412. The first terminal 411 and the second terminal 412 are both disposed in the charging slot 14, so that the first terminal 411 and the second terminal 412 are not exposed outside the housing 10, the charging terminal 41 is not easily wetted by rainwater to be corroded, dust is prevented from being accumulated between the first terminal 411 and the second terminal 412, the charging terminal 41 is prevented from being deformed due to the impact between the housing 10 and an external object, and the risk of short circuit of the charging terminal 41 is avoided.
The horizontal width of the charging slot 14 is gradually reduced from the opening of the charging slot 14 to the end of the charging slot 14, and is in a shape of a "figure eight". Even if the traveling direction of the robotic lawnmower 100 is not straight toward the external power terminal, as long as the external power terminal is at the wide opening of the charging chute 14, the external power terminal is moved into the charging chute 14 and butted against the charging terminal 41 by the guiding action of the inner wall of the "chevron" shape of the charging chute 14, increasing the chance of the charging terminal 41 being aligned with the external power terminal.
The first terminal 411 and the second terminal 412 are block-shaped, sheet-shaped or rod-shaped structures and are fixedly or rotatably connected to the sidewall of the charging slot 14.
In this embodiment, the first terminal 411 and the second terminal 412 are block-shaped structures, and are respectively protruded on the left and right inner walls facing each other in the charging slot 14 to abut against the external power supply terminal in an opposite direction, thereby preventing the charging terminal 41 from being separated from the external power supply terminal due to slight rebound of the housing 10.
Referring again to fig. 1, charging station 200, which is generally located beside or above the confines, includes a base 210, a power cord 230 disposed on base 210, a shield 240 extending from the top of base 210, and a floor 250 located below base 210.
The base 210 includes a main body 212 and a charging tongue 220 connected to the main body 212. The charging tongue 220 is horizontally disposed and has a height relative to the floor 250 that is flush with, i.e., approximately equivalent to, the height of the charging slot 14 of the robotic lawnmower 100. In other embodiments, the charging tongue 220 may be obliquely connected to the main body 212, and in this case, the opening direction of the charging slot 14 is opposite to the extending direction of the charging tongue 220.
The shape of the end of the charging tongue 220 is adapted to the shape of the charging slot 14, i.e. the end of the charging tongue 220 is also shaped like an "eight". The end of the charging tongue 220 is provided with a power terminal 260. The power supply terminal 260 includes a third terminal 261 and a fourth terminal 262. The third terminal 261 and the fourth terminal 262 are disposed on two outer walls, such as the left and right outer walls, of the charging tongue 220 opposite to each other.
The horizontal distance of the end of the charging tongue 220 to the main body 212 is greater than the horizontal distance of the third terminal 261 or the fourth terminal 262 to the main body 212. When the tip of the charging tongue 220 is at the wide opening of the charging slot 14, the inner wall of the charging slot 14 may move relative to the outer wall of the charging tongue 220 until the charging terminal 41 of the charging slot 14 abuts against the power terminal 260 of the charging tongue 220.
Referring to fig. 3, when the charging station 200 transmits energy or signals to the robotic lawnmower 100, the end of the charging tongue 220 extends into the charging slot 14 of the robotic lawnmower 100, and the power terminal 260 is connected to the charging terminal 41, i.e., the third terminal 261 and the fourth terminal 262 are electrically connected to the first terminal 411 and the second terminal 412, respectively.
Further, the first terminal 411 and the second terminal 412 are connected to corresponding inner walls of the charging slot 14 by elastic members, such as springs (not shown), which can extend and contract in a direction perpendicular to the inner walls. When the first terminal 411 and the second terminal 412 contact with the power terminal 260, the first terminal 411 and the second terminal 412 can abut against the power terminal 260 through the elastic element without easily disengaging, even if the housing 10 moves slightly in the longitudinal direction, the elastic element can automatically press against the power terminal without causing further movement. In other embodiments, the elastic element may also be disposed between the third terminal 261, the fourth terminal 262 and the outer wall of the charging tongue 220.
The power line 230 is electrically connected to the power terminal 260 of the charging tongue 220, and the power line 230 is used for connecting to an external power source. In this embodiment, the external power supply is commercial power.
The base 210 is further provided with a second circuit board 211 for changing electrical characteristics of the power or signal transmitted from the power line 230, such as AC-DC conversion.
The length of the shielding part 240 is greater than that of the charging tongue 220, and the shielding part 240 completely shields the charging tongue 220 or the power terminal 260 from above, so that the power terminal 260 of the charging tongue 220 is prevented from being wetted by rainwater and corroded. The vertical distance between the blocking portion 240 and the charging tongue 220 is greater than the vertical distance between the top 11 of the housing 10 of the robotic lawnmower 100 and the charging slot 14, ensuring that the robotic lawnmower 100 can enter the charging station 200.
The base 210 is positioned on the floor 250 such that when the charging station 200 is configured to transmit power or signals to the robotic lawnmower 100, the robotic lawnmower 100 is positioned entirely on the floor 250 to ensure a consistent height of the robotic lawnmower 100.
The first terminal 411 and the second terminal 412 may be provided on an elastic thin plate perpendicular to the bottom wall in the charging slot 14, and elastically abut against the external power supply terminal by the elastic action of the thin plate.
Referring to fig. 4 and 5, in the second preferred embodiment of the butt-joint charging system of the invention, the third terminal 261 and the fourth terminal 262 are disposed at the end of the charging tongue 220 in parallel, the first terminal 411 and the second terminal 412 each include a first thin plate 413 perpendicular to the bottom wall of the charging slot 14 and a plurality of rod-shaped protruding columns 414 disposed on the first thin plate 413, and one surface of the first thin plate 413 of the first terminal 411, on which the protruding column 414 is disposed, is disposed in parallel with one surface of the first thin plate 413 of the second terminal 412, on which the protruding column 414 is disposed. The convex columns 414 on the first thin plate 413 of the first terminal 411 and the second terminal 412 are parallel to each other and perpendicular to the bottom wall of the charging slot 14, and the outer surface of the convex column 414 is arc-shaped. The first thin plate 413 is made of an elastic material, and when the power terminal 260 laterally presses against the protruding pillar 414, the first thin plate 413 can be elastically deformed laterally to elastically abut against the power terminal 260.
When the charging terminal 41 is mated with the power terminal 260, the protruding columns 414 of the first terminal 411 and the second terminal 412 are abutted against the power terminal 260, so as to prevent the charging terminal 41 from being disengaged from the power terminal 260 due to slight rebound of the housing 10. Since the outer surface of the protruding pillar 414 is arc-shaped, the power terminal 260 can easily extend into the region between the first terminal 411 and the second terminal 412 to abut against all the protruding pillars 414.
The two ends of the first thin plate 413 are further provided with a second thin plate 415 extending in a direction away from the protruding pillar 414, and the second thin plate 415 is fixedly connected with the bottom wall of the charging slot 14 to fix the first thin plate 413.
Referring to fig. 6 and 7, in a third preferred embodiment of the docking charging system of the present invention, a third terminal 261 and a fourth terminal 262 are disposed at the end of the charging tongue 220 in parallel, and the elastic thin plate 50 is disposed at the end of the charging slot 14 facing the opening. The first terminal 411 and the second terminal 412 are thin sheets, which are disposed on the same plane of the thin plate 50 and separated by the insulating block 52, so that the probability of aligning the charging terminal 41 with the power terminal 260 is greatly increased. In the present embodiment, the power terminal 260 and the end of the charging tongue 220 are connected by the spring 54 to reduce the impact on the sheet 50.
Referring to fig. 8 and 9, in the fourth preferred embodiment of the docking charging system of the present invention, the first terminal 411 and the second terminal 412 are rod-shaped structures and are disposed in parallel at the end of the charging slot 14, the third terminal 261 and the fourth terminal 262 are disposed in parallel, when the charging terminal 41 is docked with the power terminal 260, the first terminal 411 presses the third terminal 261 laterally in a horizontal plane, the second terminal 412 presses the fourth terminal 262 laterally in a horizontal plane, and the pressing directions of the first terminal 411 and the second terminal 412 are opposite, so that the contact between the charging terminal 41 and the power terminal 260 is more reliable.
Further, free ends of the third terminal 261 and the fourth terminal 262 extend back to form a hook 70 in a horizontal plane, and when the charging terminal 41 is mated with the power terminal 260, the first terminal 411 presses the hook 70 of the third terminal 261 from the outside, and the second terminal 412 presses the hook 70 of the fourth terminal 262 from the outside. In other embodiments, the free ends of the second terminal 261 and the fourth terminal 262 may extend out of the hook 70 in a horizontal plane.
Referring to fig. 10 and 11, in a fifth preferred embodiment of the docking charging system according to the present invention, the first terminal 411 includes a first main terminal 411a and a first sub-terminal (not shown in the figures for the sake of viewing angle), and the second terminal 412 includes a second main terminal 412a and a second sub-terminal 412 b. The first and second main terminals 411a and 412a are elastically connected to the top wall of the charging slot 14, and the first and second sub-terminals 412b are elastically connected to the bottom wall of the charging slot 14. The third terminal 261 and the fourth terminal 262 are disposed in parallel at the end of the charging tongue 220. When the charging terminal 41 is mated with the power terminal 260, the first main terminal 411a presses the third terminal 261 downward in the vertical plane, the first sub-terminal presses the third terminal 261 upward in the vertical plane, the second main terminal 412a presses the fourth terminal 262 downward in the vertical plane, and the second sub-terminal 412b presses the fourth terminal 262 upward in the vertical plane. This increases the contact area between the charging terminal 41 and the power supply terminal 260, reduces the on-resistance, and makes the contact more secure.
Referring to fig. 12 and 13, in a sixth preferred embodiment of the docking charging system of the present invention, a protruding connection portion 60 is disposed on a top wall of the charging slot 14, the first terminal 411 and the second terminal 412 both include a spring sheet 62 and a spring 64, the spring sheet 62 is rotatably connected to the connection portion 60, the spring 64 is coupled to the connection portion 60, a first leg of the spring 64 is fixedly connected to the connection portion 60, and a second leg of the spring 64 is abutted to the spring sheet 62. In the initial state (as shown by the dotted line in fig. 13), the end of the spring plate 62 is opened at a certain angle toward the opening of the charging slot 14 by the spring 64. When the charging terminal 41 is mated with the power terminal 260, the power terminal 260 protrudes into the charging slot 14 and presses the charging terminal 41, so that the charging terminal 41 is rotated to the vertical position.
Referring to fig. 14 and 15, in a seventh preferred embodiment of the docking charging system according to the present invention, a dust-proof component is further disposed on the charging slot 14 for at least partially blocking the charging slot 14. The dust-proof member prevents dust from being deposited on the charging terminal 41.
The dust-proof member is specifically a dust-proof plate movably attached to the charging chute, and the dust-proof plate selectively at least partially blocks the opening of the charging chute 14 to prevent external dust, sundries, rainwater, and the like from entering the charging chute 14.
Referring to fig. 16, in the present embodiment, the dust-proof plate includes a first dust-proof plate 81 and a second dust-proof plate 82, and the first dust-proof plate 81 and the second dust-proof plate 82 are isolated by an insulating partition plate 65. The partition plate 65 also divides the charging tank 14 into two grooves in which the first dust-proof plate 81 and the second dust-proof plate 82 are located, respectively.
The first dust-proof plate 81 and the second dust-proof plate 82 are both rotatably connected to the side wall of the charging slot 14 near the opening. In the present embodiment, each of the first dust-proof plate 81 and the second dust-proof plate 82 includes a baffle 83, a pivot 84, and a spring (not shown). The bottom wall of the charging slot 14 is provided with a connecting portion 60 at a position close to the opening, the end of the connecting portion 60 is connected to the pivot 84, the first end of the baffle 83 is rotatably connected to the pivot 84, a spring (not shown) is sleeved on the pivot 84, a first leg of the spring is connected to the connecting portion 60, and a second leg of the spring abuts against the baffle 83. In other embodiments, the first dust-proof plate 81 and the second dust-proof plate 82 may have other structures, and may be configured in other manners such as elastic fixation, without being limited to the rotation coupling manner.
In an initial state (shown by a dotted line in fig. 15), the second end of the shutter 83 abuts against the opening of the charging slot 14 from the inside by the spring, at least partially blocks the opening of the charging slot 14, and at least partially covers the charging terminal 41. Thus, when the robotic lawnmower 100 is used for mowing or idling, the baffles 83 of the first and second dust guard plates 81 and 82 effectively prevent external dust, debris, rain, and the like from entering the charging chute 14, and prevent the charging terminal 41 from corroding or clogging, or from accumulating debris or dirt on the electrical contact surface of the charging terminal 41.
In the present embodiment, the first dust-proof plate 81 and the second dust-proof plate 82 are both made of a conductive material, and the first terminal 411 as a part of the charging terminal 41 is branched to form two charging terminals, i.e., the first main terminal 411a and the first dust-proof plate 81, respectively, and the second terminal 412 is also branched to form two charging terminals, i.e., the second main terminal 412a and the second dust-proof plate 82, respectively. In another embodiment, the dust-proof plate and the charging terminal 41 may be integrated, that is, the first dust-proof plate 81 and the second dust-proof plate 82 may be used as the first terminal 411 and the second terminal 412, respectively.
The first main terminal 411a and the second main terminal 412a each include a pivot 61, a spring plate 62 and a spring (not shown). The top wall of the charging chute 14 is also provided with a connecting portion 60 at a position close to the opening, and the end of the connecting portion 60 is connected to a pivot 61. The first end of the elastic sheet 62 is rotatably connected to the pivot 61, a spring (not shown) is sleeved on the pivot 61, a first leg of the spring is connected to the connecting portion 60, and a second leg of the spring is abutted to the elastic sheet 62.
The horizontal distance from the first main terminal 411a or the second main terminal 412a to the opening of the charging slot 14 is larger than the horizontal distance from the first dust-proof plate 81 or the second dust-proof plate 82 to the opening of the charging slot 14, that is, the dust-proof plates and the main terminals are arranged in front and behind in the charging slot 14. In this way, in the initial state, the dust-proof plate covers the charging terminal 41 while blocking the opening of the charging slot 14.
The distance between the pivot shaft 61 of the first main terminal 411a and the pivot shaft 84 of the first dust-proof plate 81 is larger than the turning radius of the first dust-proof plate 81, and the distance between the pivot shaft 61 of the second main terminal 412a and the pivot shaft 84 of the second dust-proof plate 82 is larger than the turning radius of the second dust-proof plate 82. This prevents the dust-proof plate from being stopped by the pivot 61 of the main terminal during the rotation to prevent the dust-proof plate from further rotating.
In an initial state (as shown by a dotted line in fig. 15), under the action of the spring, the free end of the first main terminal 411a or the second main terminal 412a does not intersect with the rotation track of the first dust-proof plate 81 or the second dust-proof plate 82, and when the power terminal 260 is subsequently abutted, the rotation track of the first main terminal 411a or the second main terminal 412a does not intersect with the rotation track of the first dust-proof plate 81 or the second dust-proof plate 82. The rotation of dust guard can not interfere with the main terminal all the time, and the abrasion caused by mutual friction between the dust guard and the main terminal is avoided, so that the service lives of the dust guard and the main terminal are prolonged.
When the charging terminal 41 and the power terminal 260 are in the butt-joint state from the initial state, the third terminal 261 and the fourth terminal 262 first press against the baffle 83 of the first dust-proof plate 81 and the second dust-proof plate 82, so that the baffle 83 rotates toward the end of the charging slot 14. The third terminal 261 and the fourth terminal 262 extend into the charging slot 14, and further press the elastic pieces 62 of the first main terminal 411a and the second main terminal 412a, so that the elastic pieces 62 also rotate toward the end of the charging slot 14.
When the charging terminal 41 and the power supply terminal 260 are in a butt-joint state, the baffles 83 of the first dust-proof plate 81 and the second dust-proof plate 82 are both in upward contact with the lower surfaces of the third terminal 261 and the fourth terminal 262, and the spring pieces 62 of the first main terminal 411a and the second main terminal 412a are both in downward contact with the upper surfaces of the third terminal 261 and the fourth terminal 262, that is, the dust-proof plates and the main terminals are in opposite contact with two opposite side surfaces of the power supply terminal 260. Thus, the contact area of the power supply terminal 260 and the charging terminal 41 is increased, the on-resistance is reduced, and the reliability of the contact of the power supply terminal 260 and the charging terminal 41 is ensured.
Further, the free ends of the first main terminal 411a and the second main terminal 412a are bent and extended a short distance in the rotation direction from the initial state to the mated state, and the free ends of the first dust-proof plate 81 and the second dust-proof plate 82 are also bent and extended a short distance in the rotation direction from the initial state to the mated state. In this way, the free ends of the main terminal and the dust-proof plate are smoothly curved, and a larger contact area can be obtained when the main terminal and the dust-proof plate are abutted against the third terminal 261 or the fourth terminal 262.
In this embodiment, the terminal of the power terminal 260 is a hemispherical surface, so that the main terminal and the dust-proof plate are not scratched when being abutted against each other. In other embodiments, the end of the power terminal 260 may have other smooth curved surfaces.
In other embodiments, the dust-proof plate may be made of an insulating material, and may not be a part of the first terminal 411 or the second terminal 412, and may be used to partially or completely block the opening of the charging slot 14.
In other embodiments, the power terminals 260 may also movably extend from the base 210. When the robotic lawnmower 100 is not docked for charging with the charging station 200, the power terminal 260 is hidden inside the base 210; when the robotic lawnmower 100 is returned to the charging station 200, the robotic lawnmower 100 first triggers a trigger (not shown) on the charging station 200, which directs the power terminal 260 from the interior of the base 210 to the exterior of the base 210, such that the power terminal 260 extends into the charging slot 14 of the robotic lawnmower 100 to interface with the charging terminal 41. Thus, when the charging stand 200 does not need to charge the robotic lawnmower 100, the power terminal 260 is not exposed to the outside, and is not easily wetted by rainwater and corroded.
Referring to fig. 17 and 18, in a seventh preferred embodiment of the docking charging system of the present invention, the dust-proof component is a flexible dust-proof brush, and the dust-proof brush at least partially blocks the opening of the charging slot 14. In this embodiment, the dust brush is a brush 66, and the brush 66 can automatically clean the surface of the power supply terminal 260 in the process of butting the charging terminal 41 and the power supply terminal 260. In other embodiments, the dust-removing member may be a flexible leather, rubber sheet, or plastic sheet.
The brush 66 includes a brush holder 661 fixed to a top portion outside the opening of the charging tank 14, and bristles 662 having one end fixed to the brush holder 661 and the other end at least partially covering the opening of the charging tank 14 in a vertical direction. In other embodiments, the brush holder 661 may be fixed to other portions of the opening of the charging chute 14, such as the bottom portion of the outside or inside of the opening, the left and right sides, or the like, as long as the brush 662 at least partially covers the opening of the charging chute 14.
When the charging terminal 41 is mated with the power terminal 260, the power terminal 260 is first brought into contact with the bristles 662, so that the bristles 662 are deformed. The brush 662 can clean the power terminal 260 from impurities, dust, etc., so that the charging terminal 41 and the power terminal 260 can be more reliably connected.
In the mower and the docking charging system of the embodiment, the concave charging slot 14 is formed in the housing 10 of the mower, the first terminal 411 and the second terminal 412 are both arranged in the charging slot 11, the charging terminal 41 is not exposed outside the housing 10, and is not wetted by rainwater to be corroded, so that poor contact of the charging terminal 41 is avoided, and deformation of the charging terminal 41 caused by collision is prevented.
The person skilled in the art can appreciate that the specific structure of the mower and the docking charging system of the present invention can be varied in many ways, but the main technical features of the solution adopted are the same as or similar to those of the present invention, and all of them are covered by the scope of the present invention.
Claims (20)
1. A lawn mower, comprising:
a housing;
a plurality of wheels arranged at the bottom of the shell;
a cutting blade for performing a cutting operation;
a cutting motor driving the cutting blade; and
the power supply module is arranged in the shell and used for supplying power to the cutting motor; the method is characterized in that:
the shell is provided with a charging groove sunken to the inside of the shell, the power supply module is provided with a charging terminal used for transmitting energy or signals, the charging terminal is arranged in the charging groove, the mower further comprises a dustproof component at least partially blocking the charging groove, the dustproof component is a dustproof plate movably connected to the charging groove, and the dustproof plate is made of conductive materials and is electrically connected with the charging terminal.
2. The mower of claim 1, wherein: the mower is an automatic mower, and the automatic mower further comprises a traveling motor and a transmission mechanism which are arranged in the shell, wherein the transmission mechanism is connected with the traveling motor and the wheels.
3. The mower of claim 1, wherein: the charging groove is located in the middle of the front end of the shell.
4. The mower of claim 1, wherein: the height of the bottom wall of the charging slot from the bottom edge of the wheel is at least 40 mm.
5. The mower of claim 1, wherein: the charging slot extends longitudinally toward the interior of the housing.
6. The mower of claim 1, wherein: the width of the charging slot is gradually reduced from the opening of the charging slot to the tail end of the charging slot.
7. The mower of claim 1, wherein: the charging groove comprises a first groove and a second groove, and the first groove and the second groove are separated through a partition plate.
8. The mower of claim 1, wherein: the charging terminal is of a block structure, a sheet structure or a rod structure.
9. The mower of claim 1, wherein: the charging terminal is rotatably connected to a sidewall in the charging slot.
10. The mower of claim 1, wherein: the dust-proof plate is arranged at a position, close to the opening, of the side wall in the charging groove.
11. The mower of claim 10, wherein: the dust guard is rotatably connected to the side wall in the charging groove.
12. The mower of claim 11, wherein: the distance between the charging terminal and the opening of the charging groove is larger than the distance between the dust-proof plate and the opening of the charging groove, when the charging terminal is in an initial state of not being in butt joint with an external power supply terminal, the dust-proof plate at least partially blocks the opening of the charging groove and at least partially covers the charging terminal, and after the charging terminal is in a butt joint state with the external power supply terminal, the dust-proof plate and the charging terminal are both in butt joint with the side face of the external power supply terminal.
13. The mower of claim 12, wherein: the charging terminal is rotatably connected to the side wall in the charging groove, and the distance between the pivot of the charging terminal and the pivot of the dust-proof plate is larger than the rotating radius of the dust-proof plate.
14. The mower of claim 13, wherein: the charging terminal and the dust-proof plate are respectively arranged on two opposite side walls in the charging groove, and when the charging terminal is in a butt joint state with an external power supply terminal, the dust-proof plate and the charging terminal are oppositely abutted against two opposite side surfaces of the external power supply terminal.
15. A docking charging system comprising a charging station and a lawnmower as claimed in any one of claims 1 to 14, the charging station comprising:
a base;
a power terminal fixedly or removably extendable from the base, the power terminal extending into a charging slot of the lawn mower and interfacing with the charging terminal when the charging station is performing energy or signal transfer to the lawn mower.
16. The docking charging system of claim 15, wherein: the charging terminal at least comprises a first terminal and a second terminal, the power supply terminal at least comprises a third terminal and a fourth terminal, and when the charging station transmits energy or signals to the mower, the third terminal and the fourth terminal are respectively and electrically connected with the first terminal and the second terminal.
17. The docking charging system of claim 16, wherein: the base comprises a main body and a charging tongue connected with the main body, the height of the tail end of the charging tongue relative to the bottom of the base is flush with the height of a charging groove of the mower, the third terminal and the fourth terminal are arranged at the tail end of the charging tongue, and when the charging station transmits energy or signals to the mower, the charging tongue extends into the charging groove of the mower.
18. The docking charging system of claim 16, wherein: the third terminal and the fourth terminal are both column-shaped bodies extending outwards from the base.
19. The docking charging system of claim 15, wherein: the charging station further comprises a shielding part, the shielding part extends out of the top of the base and is located above the power terminal, the shielding part completely shields the power terminal from the top, and the distance between the shielding part and the power terminal is larger than the vertical distance between the top of the shell of the mower and the charging groove.
20. The docking charging system of claim 15, wherein: the charging station further comprises a base plate, the base is located on the base plate, and when the charging station conducts energy or signal transmission on the mower, the mower is located on the base plate integrally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210163748.4A CN102948301B (en) | 2011-07-16 | 2012-05-24 | Mower and docking charging system |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110199440 | 2011-07-16 | ||
| CN201110199440.0 | 2011-07-16 | ||
| CN2011101994400 | 2011-07-16 | ||
| CN201210163748.4A CN102948301B (en) | 2011-07-16 | 2012-05-24 | Mower and docking charging system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102948301A CN102948301A (en) | 2013-03-06 |
| CN102948301B true CN102948301B (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210011476.6A Active CN102934565B (en) | 2011-07-16 | 2012-01-13 | Mower and docking charging system |
| CN201210163748.4A Active CN102948301B (en) | 2011-07-16 | 2012-05-24 | Mower and docking charging system |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210011476.6A Active CN102934565B (en) | 2011-07-16 | 2012-01-13 | Mower and docking charging system |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102948301A (en) | 2013-03-06 |
| CN102934565B (en) | 2015-12-09 |
| CN102934565A (en) | 2013-02-20 |
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