Electrically powered apparatus and assembly

Abstract

The application provides an electric device and an assembly, the electric device comprising: a shell, a charging circuit arranged in the shell, and an assembly arranged on the shell, the assembly being electrically connected to the charging circuit, the assembly comprising: a wheel assembly and a charging interface part, the charging interface part being electrically connected to the charging circuit, wherein the wheel assembly and the charging interface part are integrated into an integral structure. The electric device of the application integrates the wheel assembly and the charging interface part, so that the structure is compact, the volume is effectively reduced, and the integral assembly is convenient after the integration of the two parts and the fastening to the shell.

Description

Technical Field

[0001] This invention relates to an electric device and assembly, mainly used in gardening operations. Background Technology

[0002] Intelligent lawnmowers, such as smart gardening equipment, are common high-tech gardening tools. Their automated and efficient operation effectively frees people from the arduous task of cleaning and trimming lawns. Smart lawnmowers typically use rechargeable lithium batteries as their power source. A typical smart lawnmower includes a housing, cutting components within the housing, a rechargeable battery and charging base, drive wheels, support wheels, etc. The charging interface is electrically connected to the battery to connect to an external charging connector and charge the battery.

[0003] Generally, the charging base, drive wheel, support wheel and other structures mentioned above are assembled with the housing separately. The addition of the charging base not only increases the number of assembly components and auxiliary accessories, increasing the assembly steps of the lawnmower and reducing production efficiency, but also increases the size of the whole machine.

[0004] Therefore, it is necessary to design an electric device and assembly to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an electric device that is easy to assemble.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An electric device comprising:

[0008] case,

[0009] The charging circuit is disposed within the housing, and

[0010] An assembly, disposed on the housing, electrically connected to the charging circuit, wherein the assembly includes:

[0011] wheel components, and

[0012] The charging interface is electrically connected to the charging circuit.

[0013] The wheel assembly and the charging interface are integrated into a single structure.

[0014] As a further improvement of the present invention, the electric device also includes a drive wheel, a functional component or a power supply component mounted on the housing.

[0015] As a further improvement of the present invention, the housing includes a lower housing and an upper housing movably connected to the lower housing, with a hollow cavity formed between the upper and lower housings, and the functional component or the power supply component is at least partially located in the cavity.

[0016] As a further improvement of the present invention, the housing is provided with a receiving portion for accommodating the assembly, and the receiving portion is disposed at the front or bottom of the housing.

[0017] As a further improvement of the present invention, the charging interface includes a charging mounting base and a charging interface disposed on the charging mounting base, wherein the charging mounting base and the wheel assembly are integrally formed.

[0018] As a further improvement of the present invention, the charging interface includes a charging terminal, and the charging terminal includes at least a pair of guide plates.

[0019] As a further improvement of the present invention, the charging interface is provided with a retaining member that is fixed to the housing, and the retaining member is disposed on the charging mounting base.

[0020] As a further improvement of the present invention, the housing is provided with a cover covering the charging interface portion, and both the charging interface portion and the cover are provided with a wire threading portion.

[0021] As a further improvement of the present invention, the charging interface part further includes a charging seal, which has a through hole for the wire to pass through.

[0022] As a further improvement of the present invention, the charging seal has a threaded structure.

[0023] As a further improvement of the present invention, the charging mounting base is provided with a wire positioning groove, which extends from the charging seal to the charging interface.

[0024] As a further improvement of the present invention, the wheel assembly includes a support wheel, a wheel axle, and a support wheel mounting base, wherein the support wheel mounting base and the charging interface are integrally formed.

[0025] As a further improvement of the present invention, the support wheel mounting base is provided with a mounting hole extending from top to bottom, and the wheel axle is fixed in the mounting hole.

[0026] As a further improvement of the present invention, the support wheel includes a first half-wheel and a second half-wheel, the first half-wheel and the second half-wheel engaging with each other to form a receiving cavity, the receiving cavity being used to accommodate the wheel axle.

[0027] As a further improvement of the present invention, the wheel assembly also includes a wheel axle positioning assembly and a sealing assembly.

[0028] As a further improved technical solution of the present invention, the sealing assembly includes a first sealing element and a second sealing element, a first fitting gap formed between the first half-wheel and the axle, a second fitting gap formed between the first half-wheel and the second half-wheel, the first sealing element being used to seal the first fitting gap, and the second sealing element sealing the second fitting gap.

[0029] As a further improved technical solution of the present invention, the first sealing element and the second sealing element are respectively disposed on both sides of the receiving cavity, the first sealing element is an oil seal, and the second sealing element is an O-ring.

[0030] Another objective of this invention is to provide an assembly that is easy to assemble.

[0031] To achieve the above objectives, the present invention adopts the following technical solution:

[0032] An assembly disposed on an electric device, the electric device including a housing and a charging circuit, the assembly comprising:

[0033] wheel components, and

[0034] The charging interface is electrically connected to the charging circuit.

[0035] The wheel assembly and the charging interface are integrated into one structure.

[0036] As a further improvement of the present invention, the wheel assembly includes a support wheel, a wheel axle, and a support wheel mounting base, wherein the support wheel mounting base and the charging interface are integrally formed.

[0037] As a further improvement of the present invention, the charging interface includes a charging mounting base and a charging interface disposed on the charging mounting base, wherein the charging mounting base and the wheel assembly are integrally formed.

[0038] As can be seen from the above technical solutions, the electric device of the present invention integrates the wheel assembly and the charging interface into a single design, which not only makes the structure compact and effectively reduces the volume, but also makes the assembly of the whole machine convenient by fastening the two together to the housing. Attached Figure Description

[0039] Figure 1 This is a perspective view of the lawnmower of the present invention.

[0040] Figure 2 This is a perspective view of the lower housing and assembly of the lawnmower of the present invention.

[0041] Figure 3 for Figure 2 Exploded view of the lower and middle shell and its assemblies.

[0042] Figure 4 for Figure 3 A magnified view of the circled area.

[0043] Figure 5 for Figure 2 A three-dimensional view of the lower and middle shell.

[0044] Figure 6 for Figure 2 A three-dimensional view of the middle assembly components.

[0045] Figure 7 for Figure 6 The cross-sectional view of the support wheel is omitted from the middle assembly component.

[0046] Figure 8 for Figure 6 A bottom view of the charging interface and the support wheel mounting base.

[0047] Figure 9 for Figure 6 A perspective view of the charging interface and the support wheel mounting base.

[0048] Figure 10 This is a perspective view of the wheel assembly of the present invention, omitting the support wheel mounting base.

[0049] Figure 11 for Figure 10 The cross-sectional view of the support wheel mounting base is omitted from the middle wheel assembly.

[0050] Figure 12 for Figure 11 A three-dimensional diagram of the first half of the wheel.

[0051] Figure 13 for Figure 11 A three-dimensional image of the second half of the middle round. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0053] This invention provides an electric device, comprising a housing and a drive wheel, functional components, a power supply component, a charging circuit, and an assembly mounted on the housing. The functional components are those that realize or assist in realizing the operational functions of the intelligent working device, such as the cutting component of a lawnmower or the vacuuming component of a sweeping robot, and are not limited thereto. The invention will be described in detail below using a lawnmower as an example.

[0054] Please refer to Figure 1As shown, the present invention provides an intelligent lawnmower, which includes: a body, a cutting assembly, a power supply assembly, a charging circuit, and an assembly. The body has a housing 10 and an upper cover 20 located above the housing 10. The housing 10 includes a lower housing 1 and an upper housing movably connected to the lower housing 1, with a hollow cavity formed between the upper and lower housings.

[0055] The mower has two drive wheels 30 located on either side of its body, typically at the front. Each drive wheel 30 is driven by a separate drive motor. When the motor speeds differ, the mower turns; when they are the same, it moves in a straight line; and when they are opposite, it performs a stationary turn. At least one support wheel 32 is located at the rear of the mower, supported by the drive wheels 30 and the support wheel 32. The support wheel 32 is typically a swivel wheel to facilitate turning. The mower operates within a designated working area, which can be defined by a metal wire or a virtual wire.

[0056] The cutting assembly includes a motor and a cutting element driven by the motor. The cutting assembly is located roughly in the center of the lawnmower, and the motor's rotation axis is roughly perpendicular to the horizontal plane. The height of the cutting assembly relative to the ground can be adjusted by the operator to regulate the cutting height.

[0057] The power supply assembly includes a rechargeable battery and a charging unit that powers the rechargeable battery. The cutting assembly and the power supply assembly are at least partially located within the cavity.

[0058] Please refer to Figures 1 to 4 As shown, the assembly includes a charging interface portion 2 and a wheel assembly 3. The charging interface portion 2 is electrically connected to the charging circuit, and the wheel assembly 3 and the charging interface portion 2 form an integral structure. The housing 10 has a cover 111 covering the charging interface portion 2, and the cover 111 matches the outer contour of the charging interface portion 2. The housing 10 has a receiving portion 112 for accommodating the assembly, which is located at the front or bottom of the housing 10. Specifically, the cover 111 is formed on the lower housing 1, and the receiving portion 112 is located below the cover 111. Please refer to... Figure 3 and Figure 4 As shown, the receiving part 112 has a charging port 1125 and a mounting port 1126 at the front and bottom of the housing 10, respectively, to facilitate the insertion of the charging interface part 2 and the engagement of the charging connector with the charging interface part 2 from the front. The housing 10 has a pair of first guide plates 1123 that are inclined on both sides of the charging port 1125. The cover 111 has a cylindrical first wire threading part 1127.

[0059] Please refer to Figures 6 to 9As shown, the charging interface section 2 includes a charging mounting base 21, a charging interface 24 disposed on the charging mounting base 21, a charging terminal 23, and a charging seal 22. The charging terminal 23 includes at least one pair of guide tabs, which are electrically connected to the charging circuit. The charging terminal 23 is mounted on both sides of the charging mounting base 21 and protrudes into the charging interface 24.

[0060] The charging mounting base 21 includes a top wall 211, a first side wall 212 and a second side wall 213 disposed opposite to each other, and a third side wall 214 connecting the first side wall 212 and the second side wall 213. The first side wall 212, the second side wall 213, the third side wall 214, and the top wall 211 together form a charging interface 24. A charging terminal 23 is fixed to the charging mounting base 21. The charging terminal 23 includes a connecting end 231 for connecting to the charging cable and a charging end 232 for contacting the charging connector. The charging interface 24 is located behind the charging port 1125. The charging mounting base 21 is provided with a pair of second guide plates 217 located behind the first guide plate 1123 and arranged at an angle, for guiding the charging connector into the charging interface 24.

[0061] Please refer to Figure 6 and Figure 9 As shown, the top of the charging mounting base 21 has a second wiring section 216 corresponding to the first wiring section 1127 and connected to the charging interface 24. The charging mounting base 21 also has a wire positioning groove 2111 communicating with the second wiring section 216. The second wiring section 216 and the wire positioning groove 2111 are specifically located on the top wall 211. The second wiring section 216 is cylindrical and has a notch 2161. The wire positioning groove 2111 communicates with the second wiring section 216 through the notch 2161. The wire positioning groove 2111 first extends to both sides of the charging mounting base 21, then extends downwards for a certain distance and communicates with the charging interface 24.

[0062] The charging interface section 2 is provided with a retaining member 218 that is fixed to the housing 10, and the retaining member 218 is disposed on the charging mounting base 21. For details, please refer to... Figure 4 and Figure 6 As shown, the retaining member 218 consists of a pair of spring pieces disposed on both sides of the charging mounting base 21. The upper part of the spring pieces is connected to the charging mounting base 21, and the lower part of the spring pieces is an elastic free end. The receiving part 112 is provided with a groove 1121 for receiving the spring pieces, and the bottom of the groove 1121 is provided with a protrusion 1122 that engages with the lower part of the spring pieces. During assembly, the charging mounting base 21 is extended upward into the receiving part 112 along the groove 1121. During the extension process, the spring pieces undergo elastic deformation downward. When installed in place, the spring pieces reset and engage with the two protrusions 1122, preventing the charging mounting base 21 from moving downward.

[0063] The charging seal 22 engages with both the second wire threading portion 216 and the first wire threading portion 1127 to seal the charging cable into the housing 10. Please refer to... Figure 7 and Figure 9 As shown, the portion of the charging seal 22 that mates with the first wire threading portion 1127 has a threaded structure, while the portion that mates with the second wire threading portion 216 has a notch 411. The charging seal 22 is a hollow cylindrical shape, including a first fixing portion 221 installed on the second wire threading portion 216, a second fixing portion 222 fixed to the first wire threading portion 1127, and a connecting portion 223 connecting the first fixing portion 221 and the second fixing portion 222. The outer diameter of the connecting portion 223 is larger than the outer diameters of the first fixing portion 221 and the second fixing portion 222. The connecting portion 223 is located between the second wire threading portion 216 and the first wire threading portion 1127, serving a buffering function. Two notches 2211 are provided at the lower end of the first fixing portion 221.

[0064] After the charging seal 22 is assembled with the second wire-passing part 216, the notch 2161 and the notch 411 are aligned vertically. The outer side of the second fixing part 42 is threaded to increase the friction between the charging seal 22 and the lower housing 1. The top of the second fixing part 42 is provided with two wire-passing holes 2221 for the charging cable to pass through. One end of the charging cable is welded to the connecting end 231, and the other end passes through the wire positioning groove 2111, the notch 2161 and the notch 2211 in sequence to enter the interior of the charging seal 22, and then passes out through the wire-passing hole 2221 and enters the housing 10. The diameter of the wire-passing hole 2221 is set to be slightly smaller than the outer diameter of the charging cable, so that the charging cable fits tightly against the charging seal 22 in the wire-passing hole 2221.

[0065] Please refer to Figure 2 , Figure 10 and Figure 11 As shown, the wheel assembly 3 includes a wheel axle 31, a support wheel 32 mounted to the wheel axle 31, a wheel axle positioning assembly 33, a sealing assembly 34, and a support wheel mounting base 35. In this embodiment, the support wheel mounting base 35 and the charging interface portion 2 are an integral structure; specifically, the support wheel mounting base 35 and the charging mounting base 21 are an integrally formed structure. Please refer to... Figure 7 As shown, the support wheel mounting base 35 is located behind the third side wall 214. The support wheel mounting base 35 has a mounting hole 351 extending from top to bottom, and the wheel axle 31 is fixed in the mounting hole 351. Specifically, the wheel axle 31 extends upward into the mounting hole 351 and is fixed in the mounting hole 351 by two bushings 314 and fasteners 315.

[0066] The support wheel 32 includes a first half wheel 321 and a second half wheel 322. The first half wheel 321 and the second half wheel 322 engage with each other to form a receiving cavity 323. The wheel axle 31 passes through the first half wheel 321 and enters the receiving cavity 323. The receiving cavity 323 includes a first fitting gap formed by the first half wheel 321 and the wheel axle 31 and a second fitting gap formed by the first half wheel 321 and the second half wheel 322. The first fitting gap and the second fitting gap are located on both sides of the receiving cavity 323.

[0067] Please refer to Figure 12 and Figure 13 As shown, the first half-wheel 321 and the second half-wheel 322 are both disc-shaped. The first half-wheel 321 has a first cylindrical portion 3211 protruding towards the second half-wheel 322, and a through hole 3212 for the wheel axle 31 to pass through is opened on one side of the first cylindrical portion 3211. The second half-wheel 322 has a second cylindrical portion 3221 and a third cylindrical portion 3222 protruding towards the first half-wheel 321, and an annular groove (not labeled) is formed between the second cylindrical portion 3221 and the third cylindrical portion 3222. When the first half-wheel 321 and the second half-wheel 322 are engaged, the first cylindrical portion 3211 extends into the annular groove. The first cylindrical portion 3211 and the second cylindrical portion 3221 together form a receiving cavity 323. Since the two half-wheels are assembled together, two fitting gaps will be generated, affecting the overall sealing performance of the receiving cavity 323. One of them is the first fitting clearance formed between the through hole 3212 and the first half wheel 321, and the other is the second fitting clearance formed between the first cylindrical part 3211 and the second cylindrical part 3221.

[0068] The first half-wheel 321 has several mounting holes 3213, and the second half-wheel 322 has several mounting posts 3223 that mate with the mounting holes. Additionally, the second half-wheel 322 has several snap-fit ​​pieces 3224 circumferentially arranged, each with a slot 3225. The first half-wheel 321 has a locking block 3214 that mates with the snap-fit ​​pieces 3224, and the locking block 3214 engages with the slot 3225. Furthermore, both the first half-wheel 321 and the second half-wheel 322 have several reinforcing ribs (unlabeled) inside.

[0069] Please refer to Figure 3 and Figure 11 As shown, the axle 31 includes a horizontally arranged support portion 311 mounted on the support wheel 24, a vertically arranged mounting portion 312 mounted on the support wheel mounting base 35, and a connecting portion 313 connecting the support portion 311 and the mounting portion 312. The axle 31 extends into the receiving cavity 323 through the through hole 3212, and its end is located in the third cylindrical portion 3222 of the second half-wheel 322.

[0070] The wheel axle positioning assembly 33 includes a bearing 331, a bearing pressure block 332, a gasket 333, a bearing clamp 335, and a gasket 334 located on the outside of the first half-wheel 321, which are sequentially arranged on the wheel axle 31 to rotatably mount the support wheel 32 on the wheel axle 31. The bearing 331, bearing pressure block 332, gasket 333, 334, and bearing clamp 335 are all provided on the support portion 311. The first half-wheel 321 has an annular portion 3215 near the through hole 3212, and the annular portion 3215 and the gasket 334 together restrict the position of the first seal 341.

[0071] Please refer to Figure 11 As shown, the sealing assembly 34 includes a first seal 341 for sealing a first mating gap and a second seal 342 for sealing a second mating gap, to protect the axle 31 and the axle positioning assembly 33 in the receiving cavity 323. The first seal 341 is preferably an oil seal, and the second seal 342 is an O-ring. The second seal 342 is located in the annular groove and abuts against the first cylindrical portion 3211.

[0072] During assembly, the components are first assembled as a single unit, with the charging cable, charging terminal 23, and charging seal 22 all fixed to the charging mounting base 21. One end of the charging cable is soldered to the charging terminal, and the other end passes through the charging seal 22. Then, the entire assembly is assembled from below the mounting opening 1126 to the receiving portion 112 of the housing 10, with the charging cable passing through the first wire-passing portion 1127. The lower part of the charging seal 22 is tightly sealed to the charging mounting base 21, and the upper part is tightly sealed to the housing 10.

[0073] In summary, the electric device of the present invention integrates the wheel assembly and charging interface into a single unit, resulting in a compact structure that effectively reduces size. Furthermore, by fastening the two components together to the housing, assembly of the entire device is convenient. Additionally, by providing a charging seal at the connection point between the charging interface and the interior of the housing, the charging cable passes through while isolating the interior and exterior of the housing, ensuring a sealed interior. Moreover, the present invention provides a first and a second seal on both sides of the receiving cavity, ensuring excellent sealing of the cavity and protecting internal metal components such as bearings, thus achieving sealing of critical parts of the wheel axle.

[0074] The terms used herein, such as “upper,” “lower,” “front,” and “back,” indicating relative spatial positions, are for illustrative purposes to describe the relationship of one feature relative to another, as shown in the accompanying drawings. It is understood that, depending on the product's placement, these terms may be intended to include different orientations besides those shown in the figures, and should not be construed as limiting the claims.

[0075] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of this specification should be based on those skilled in the art. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present invention. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. An electric device, characterized in that: include: case, The charging circuit is disposed within the housing, and An assembly is disposed on the housing and is electrically connected to the charging circuit. The assembly includes: wheel components, and The charging interface is electrically connected to the charging circuit. The wheel assembly and the charging interface are integrated into a single structure. The wheel assembly includes a support wheel, a wheel axle, and a support wheel mounting base. The support wheel mounting base is an integral structure with the charging interface portion. The support wheel mounting base is provided with a mounting hole extending from top to bottom. The wheel axle includes a horizontally arranged support portion mounted on the support wheel, a vertically arranged mounting portion fixed in the mounting hole, and a connecting portion connecting the support portion and the mounting portion. The charging interface includes a charging mounting base and a charging interface disposed on the charging mounting base; the housing is provided with a receiving portion for accommodating the assembly, the receiving portion is disposed at the front or bottom of the housing, the receiving portion is provided with a charging port and a mounting port at the front and bottom of the housing respectively, the assembly is integrally assembled to the receiving portion from below the mounting port, and the charging interface is disposed behind the charging port.

2. The electric device according to claim 1, characterized in that, The electric device also includes a drive wheel, functional components, or power supply components mounted on the housing.

3. The electric device according to claim 2, characterized in that, The housing includes a lower housing and an upper housing movably connected to the lower housing, with a hollow cavity formed between the upper and lower housings, and the functional component or the power supply component is at least partially located within the cavity.

4. The electric device according to claim 1, characterized in that, The charging mounting base and the wheel assembly are an integral structure.

5. The electric device according to claim 4, characterized in that, The charging interface includes a charging terminal, and the charging terminal includes at least one pair of guide plates.

6. The electric device according to claim 4, characterized in that, The charging interface is provided with a retaining member that is fixed to the housing, and the retaining member is disposed on the charging mounting base.

7. The electric device according to claim 4, characterized in that, The housing is provided with a cover covering the charging interface portion, and both the charging interface portion and the cover are provided with wire threading portions.

8. The electric device according to claim 4, characterized in that, The charging interface also includes a charging seal, which has a through hole for wires to pass through.

9. The electric device according to claim 8, characterized in that, The charging seal has a threaded structure.

10. The electric device according to claim 9, characterized in that, The charging mounting base is provided with a wire positioning groove, which extends from the charging seal to the charging interface.

11. The electric device according to claim 1, characterized in that, The support wheel includes a first half-wheel and a second half-wheel, which engage with each other to form a receiving cavity, which is used to accommodate the wheel axle.

12. The electric device according to claim 11, characterized in that, The wheel assembly also includes a wheel axle positioning assembly and a sealing assembly.

13. The electric device according to claim 12, characterized in that, The sealing assembly includes a first seal and a second seal, a first fitting gap formed between the first half-wheel and the axle, a second fitting gap formed between the first half-wheel and the second half-wheel, the first seal being used to seal the first fitting gap, and the second seal being used to seal the second fitting gap.

14. The electric device according to claim 13, characterized in that, The first sealing element and the second sealing element are respectively disposed on both sides of the receiving cavity. The first sealing element is an oil seal and the second sealing element is an O-ring.

15. An assembly disposed on an electric device, said electric device comprising a housing and a charging circuit, characterized in that, The assembly includes: wheel components, and The charging interface is electrically connected to the charging circuit. The wheel assembly and the charging interface form an integrated structure. The wheel assembly includes a support wheel, a wheel axle, and a support wheel mounting base. The support wheel mounting base is an integral structure with the charging interface portion. The support wheel mounting base is provided with a mounting hole extending from top to bottom. The wheel axle includes a horizontally arranged support portion mounted on the support wheel, a vertically arranged mounting portion fixed in the mounting hole, and a connecting portion connecting the support portion and the mounting portion. The charging interface includes a charging mounting base and a charging interface disposed on the charging mounting base; the housing is provided with a receiving portion for accommodating the assembly, the receiving portion is disposed at the front or bottom of the housing, the receiving portion is provided with a charging port and a mounting port at the front and bottom of the housing respectively, the assembly is integrally assembled to the receiving portion from below the mounting port, and the charging interface is disposed behind the charging port.

16. The assembly according to claim 15, characterized in that, The charging mounting base and the wheel assembly are an integral structure.

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