Self-moving device

Abstract

The utility model relates to a self-moving device. The self-moving device comprises a shell, a radar module installed on the shell and a metal heat dissipation base connected with the radar module. The self-moving device further comprises a first damping piece connected between the metal heat dissipation base and the shell, the first damping piece comprises an elastic body part, a first connecting part and a second connecting part, the first connecting part and the second connecting part are connected to the elastic body part, the first connecting part is connected with the metal heat dissipation base, and the second connecting part is connected with the shell. According to the self-moving equipment, in the walking working process, vibration generated by working of the radar module can be buffered and weakened through the elastic first damping piece before being transmitted to the shell, so that noise is reduced, and user experience is improved.

Description

[Technical Field]

[0001] This utility model relates to the field of intelligent tool technology, and in particular to a low-noise self-moving device. [Background Technology]

[0002] With the development of technology, self-moving devices capable of operating autonomously without user intervention are increasingly used in daily work and life. To cope with complex working environments, existing self-moving devices are equipped with radar modules such as lidar and ultrasonic radar to detect the surrounding environment. During the self-moving device's operation, if the radar module detects obstacles or abnormal conditions such as rain or steep slopes, the self-moving device will implement adaptive processing strategies based on the signals transmitted by the radar module.

[0003] During the operation of the self-moving device, the radar module constantly monitors the environment. The vibration generated by the radar module is transmitted to the casing of the self-moving device and produces a lot of noise, which affects the user experience.

[0004] Therefore, it is indeed necessary to provide an improved self-moving device to overcome the shortcomings of the existing technology. [Utility Model Content]

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a self-moving device that can effectively reduce the vibration of radar modules.

[0006] The present invention addresses the existing technical problems by adopting the following technical solution: A self-moving device includes: a housing; a radar module mounted on the housing; a metal heat sink mounted on the housing, wherein the radar module is connected to the metal heat sink; the self-moving device further includes a first shock absorber connected between the metal heat sink and the housing, the first shock absorber including an elastic body portion and a first connecting portion and a second connecting portion connected to the elastic body portion, the first connecting portion being connected to the metal heat sink, and the second connecting portion being connected to the housing.

[0007] Furthermore, the self-moving device also includes a second shock absorber, which is clamped between the metal heat sink and the radar module.

[0008] Furthermore, the second shock absorber is constructed as a sheet, and includes a first surface and a second surface located below the first surface. The first surface is attached to the radar module, and the second surface is attached to the metal heat sink.

[0009] Furthermore, the metal heat sink also includes a base mounted on the housing and a receiving groove formed in the base, and the second shock absorber is mounted in the receiving groove.

[0010] Furthermore, the thickness of the second shock absorber is not less than the depth of the receiving groove.

[0011] Furthermore, the extending direction of the elastic body portion is parallel to the height direction of the self-moving device.

[0012] Furthermore, the elastic body portion is constructed in a columnar shape, with the first connecting portion and the second connecting portion respectively disposed at both ends in the longitudinal direction of the elastic body portion.

[0013] Furthermore, the first connecting portion includes a first screw hole located below the metal heat sink, and the self-moving device also includes a first screw that passes through the metal heat sink and is connected to the first screw hole.

[0014] Furthermore, the second connecting part includes a second screw, and the housing also includes a second screw hole, the second screw being connected to the second screw hole.

[0015] Furthermore, the first connecting part and the second connecting part are integrally formed with the elastic body part by injection molding.

[0016] Compared with the prior art, the present invention has the following beneficial effects: A first shock absorber is provided between the metal heat sink and the housing of the self-moving device. The first shock absorber includes an elastic body and a first connecting part and a second connecting part connected to the elastic body. The first connecting part is connected to the metal heat sink, and the second connecting part is connected to the housing. In this way, during the walking and working process of the self-moving device, the vibration generated by the operation of the radar module will be buffered and weakened by the elastic first shock absorber before being transmitted to the housing, thereby reducing noise and improving the user experience. [Attached Image Description]

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the self-moving device in a preferred embodiment of the present invention;

[0019] Figure 2 yes Figure 1 The image shown is a partial exploded view of the self-moving device after the decorative cover has been removed.

[0020] Figure 3 yes Figure 2 A magnified view of part A in the self-moving device shown;

[0021] Figure 4 yes Figure 2 A cross-sectional view of the self-moving device shown;

[0022] Figure 5 yes Figure 4 A magnified view of part B in the self-moving device shown.

[0023] Meaning of the reference numerals in the diagram:

[0024] Smart lawnmower 100 housing 1

[0025] Base 11, Top Cover 12

[0026] Decorative cover 13 First chamber 14

[0027] Second chamber 15 Second screw hole 16

[0028] First screw 101 Walking module 2

[0029] Drive wheel 21 Auxiliary wheel 22

[0030] Cutting module 3 Cutting part 31

[0031] Motor barrel 32 Four-link structure 33

[0032] Energy Module 4 Radar Module 5

[0033] Metal heat sink 6, base 61

[0034] 62 Receiving groove 7 First shock absorber

[0035] Elastic body part 71 First connecting part 72

[0036] Second connecting part 73 First screw hole 720

[0037] Second screw 730 Second shock absorber 8

[0038] First surface 81 Second surface 82

Detailed Implementation Methods

[0039] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. In the description of this specification, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The terminology used in this invention is for the purpose of describing specific embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "front," and "rear" that indicate orientation or positional relationship are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0041] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0042] Please see Figures 1 to 5 The image shows a self-moving device according to one embodiment of the present invention. In this embodiment, the self-moving device is an intelligent lawnmower 100 used for trimming garden lawns. It should be noted that in other embodiments, the self-moving device can also be a cleaning robot, a service robot, or other mobile robots that can walk autonomously and perform operations.

[0043] The intelligent lawnmower 100 includes a housing 1, a walking module 2 for supporting the movement of the housing 1, a cutting module 3 disposed at the bottom of the housing 1, a control module (not shown) installed inside the housing 1 for controlling the automatic operation of the walking module 2 and the automatic operation of the cutting module 3, and an energy module 4 for supplying power to the intelligent lawnmower 100.

[0044] The housing 1 includes a base 11, a top cover 12 connected to the base 11 and defining a first chamber 14, and a decorative cover 13 connected to the base 11 and / or the top cover 12 and defining a second chamber 15. Specifically, the base 11 is used to install functional modules such as the walking module 2, the cutting module 3, the control module, and the energy module 4; while the top cover 12 is configured to at least partially cover the base 11 and is connected to the base 11 to form the first chamber 14. The aforementioned control module is at least partially housed in the first chamber 14. In one embodiment of this utility model, the top cover 12 is sealed to the base 11, and the first chamber 14 is sealed and isolated from the external environment; the decorative cover 13 mainly serves an aesthetic and decorative purpose, and is connected to the top cover 12 and defines the second chamber 15. The human-machine interface and other modules for user operation of the intelligent lawnmower 100 are located in the second chamber 15. It should be noted that the decorative cover 13 being connected to the upper cover 12 and defining the second chamber 15 is only one optional embodiment of this utility model. In other embodiments, the decorative cover 13 may also be connected to the base 11, or simultaneously connected to both the base 11 and the upper cover 12.

[0045] The walking module 2 is used to drive the intelligent lawnmower 100 to move within the working area, and includes drive wheels 21 and auxiliary wheels 22 mounted on the housing 1. Specifically, there are two drive wheels 21, each connected to a corresponding walking motor (not shown). The walking motor drives the drive wheels 21 to rotate, thereby enabling the intelligent lawnmower 100 to move automatically. The auxiliary wheels 22 mainly serve as auxiliary supports. There are one or two auxiliary wheels 22, located at the front of the intelligent lawnmower 100. The auxiliary wheels 22 are not connected to the walking motor, but they are driven to roll while supporting the intelligent lawnmower 100 to move. With the above structural arrangement, the intelligent lawnmower 100 can be controlled by the control module to move and turn flexibly on the working surface. During normal walking, the two walking motors output the same speed, directly driving or indirectly driving the intelligent lawnmower 100 through a transmission structure such as gears or belts, while the auxiliary wheel 22 also rolls. When turning, the two walking motors output different speeds, and the intelligent lawnmower 100 will turn towards the side of the driving wheel 21 with the lower speed or towards the side of the driving wheel 21 with the direction of reversing.

[0046] The cutting module 3 includes at least a cutting element 31 for cutting turf and a cutting motor (not shown) that drives the cutting element 31. Specifically, the cutting motor is mounted on the base 11 of the housing 1 and is electrically connected to the control module. The control module can control the start and stop of the cutting motor and adjust its speed. The cutting motor is housed in a motor cylinder 32, and a four-bar linkage 33 is provided between the motor cylinder 32 and the base 11. The four-bar linkage 33 rotatably connects the motor cylinder 32 and the base 11. Thus, when the intelligent lawnmower 100 encounters obstacles such as stones or low shrubs during its movement, the cutting element 31 will not collide directly with the obstacles, but will be pushed by the obstacles and drive the motor cylinder 32 to move in the vertical direction. This avoids damage to the cutting element 31 from direct collision with obstacles and improves the obstacle-crossing ability of the intelligent lawnmower 100. It should be noted that the cutting element 31 can be a cutting disc and multiple cutting blades mounted on the cutting disc, or it can be a single cutting blade; this is not limited here.

[0047] The control module is used to control the automatic walking and operation of the intelligent lawnmower 100. Its functions include controlling the cutting module 3 to start or stop, generating a walking path and controlling the walking module 2 to follow it, receiving environmental signals detected by the intelligent lawnmower 100, judging the power of the energy module 4 and controlling the intelligent lawnmower 100 to return to the docking station for automatic charging, etc.

[0048] For ease of understanding, in this utility model, the horizontal working surface that the intelligent lawnmower 100 travels through during the cutting operation is used as a reference object, the plane parallel to the horizontal working surface is used as the horizontal plane, the direction perpendicular to the horizontal working surface is used as the height direction of the intelligent lawnmower 100, the forward and backward directions of the intelligent lawnmower 100 are used as the front-back direction of the intelligent lawnmower 100, and the left-right direction of the intelligent lawnmower 100 is perpendicular to the front-back direction of the intelligent lawnmower 100.

[0049] The intelligent lawnmower 100 includes a radar module 5 and a metal heat sink 6 connected to the radar module 5 for heat dissipation. Specifically, the radar module 5 is partially installed inside the housing 1 and electrically connected to the control module. In this embodiment, the radar module 5 is a lidar; however, in other embodiments, it can be an ultrasonic radar or other radar sensor capable of environmental detection. The radar module 5 is mounted on the metal heat sink 6, which is fixedly installed on the housing 1. During the operation of the intelligent lawnmower 100, the heat generated by the radar module 5 is transferred to the metal heat sink 6, which conducts heat and transfers it to the air.

[0050] The intelligent lawnmower 100 also includes a first shock absorber 7 connected between the metal heat sink 6 and the housing 1. The first shock absorber 7 includes an elastic body portion 71 and a first connecting portion 72 and a second connecting portion 73 connected to the elastic body portion 71. The first connecting portion 72 is connected to the metal heat sink 6, and the second connecting portion 73 is connected to the housing 1. Thus, in this embodiment, during the operation of the intelligent lawnmower 100, the vibration generated by the operation of the radar module 5 is buffered and weakened by the first shock absorber 7 with elastic shock absorption effect before being transmitted to the housing 1, thereby reducing noise and improving the user experience.

[0051] The extension direction of the elastic body portion 71 is parallel to the height direction of the intelligent lawnmower 100 to improve the buffering and shock absorption effect of the first shock absorber 7. Specifically, the metal heat sink 6 is installed on the top of the housing 1, the elastic body portion 71 is columnar, and the first connecting portion 72 and the second connecting portion 73 are respectively provided at both ends in the longitudinal direction of the elastic body portion 71. In this way, the elastic body portion 71 provides elastic support for the radar module 5 in the height direction of the intelligent lawnmower 100, so that the vibrations generated by the operation of the radar module 5 in all directions can be buffered and damped by the elastic body portion 71, reducing the vibration of the housing 1 and reducing noise.

[0052] The first connecting part 72 and the second connecting part 73 are respectively fixedly connected to the metal heat sink 6 and the housing 1 via threaded structures. Specifically, the first connecting part 72 includes a first screw hole 720 located below the metal heat sink 6, and the intelligent lawnmower 100 also includes a first screw 101, which passes through the metal heat sink 6 and connects to the first screw hole 720; the second connecting part 73 includes a second screw 730, and the housing 1 also includes a second screw hole 16, which connects the second screw 730 to the second screw hole 16. Thus, when installing the metal heat sink 6, it is only necessary to first install the second screw 730 of the second connecting part 73 into the corresponding second screw hole 16 on the housing 1, at which time the first shock absorber 7 is fixedly installed on the housing 1; then, align the through hole of the metal heat sink 6 with the first screw hole 720 of the first connecting part 72, and pass the screw 101 through the through hole of the metal heat sink 6 and the first screw hole 720 of the first connecting part 72 to achieve relative fixation of the metal heat sink 6 and the first shock absorber 7. The installation method is simple and easy to operate.

[0053] It should be noted that in an optional embodiment of this utility model, the first connecting part 72 and the second connecting part 73 are integrally formed with the elastic body part 71 by injection molding. In this way, on the one hand, the installation and assembly of the first shock absorber 7 and the metal heat sink 6 are further simplified; on the other hand, the first shock absorber 7 is a separate part, which is easy to replace.

[0054] Furthermore, the intelligent lawnmower 100 also includes a second shock absorber 8, which is sandwiched between the metal heat sink 6 and the radar module 5. Thus, when the intelligent lawnmower 100 is in operation, the vibration generated by the operation of the radar module 5 will be doubly buffered and weakened by the first shock absorber 7 and the second shock absorber 8, which have elastic damping effect, before being transmitted to the housing 1, thereby further reducing the vibration of the housing 1 and reducing noise.

[0055] Specifically, the second damping component 8 is sheet-shaped, and the first damping component 8 includes a first surface 81 and a second surface 82 located below the first surface 81. The first surface 81 is in close contact with the radar module 5, and the second surface 82 is in close contact with the metal heat sink 6. By using the sheet-shaped second damping component 8, on the one hand, the second damping component 8 can tightly fit the radar module 5 and the metal heat sink 6, improving the damping effect; on the other hand, it will not affect the installation and fixation between the radar module 5 and the metal heat sink 6, ensuring structural reliability.

[0056] The metal heat sink 6 also includes a base 61 mounted on the housing 1 and a receiving groove 62 formed in the base 61, and the second shock absorber 8 is mounted in the receiving groove 62. Specifically, the receiving groove 62 is formed by a downward recess on the upper surface of the base 61. The size and shape of the receiving groove 62 are adapted to the sheet-like structure of the second shock absorber 8 to accommodate and fix the second shock absorber 8. In one embodiment of the present invention, the thickness of the second shock absorber 8 is not less than the depth of the receiving groove 62. In this way, on the one hand, it is ensured that the second shock absorber 8 can be stably installed in the receiving groove 62; on the other hand, the part of the second shock absorber 8 protruding from the receiving groove 62 can fully contact the radar module 5 to improve the shock absorption effect.

[0057] This utility model is not limited to the specific embodiments described above. Those skilled in the art will readily understand that many other alternative solutions exist for the self-moving device of this utility model without departing from its principles and scope. The scope of protection of this utility model is determined by the claims.

Claims

1. A self-moving device, comprising: a housing; a radar module mounted on the housing; a metal heat sink mounted on the housing, the radar module being connected to the metal heat sink; characterized in that the self-moving device further comprises a first damping member connected between the metal heat sink and the housing, the first damping member comprising an elastic body portion and first and second connecting portions connected to the elastic body portion, the first connecting portion being connected to the metal heat sink, and the second connecting portion being connected to the housing.

2. The self-moving device of claim 1, wherein: The self-moving device further comprises a second damping member clamped between the metal heat sink and the radar module.

3. The self-moving device of claim 2, wherein: The second damping member is configured in a sheet shape, and comprises a first surface and a second surface located below the first surface, the first surface being connected to the radar module in a fit-on manner, and the second surface being connected to the metal heat sink in a fit-on manner.

4. The self-moving device of claim 2, wherein: The metal heat sink further comprises a seat body mounted on the housing and a receiving groove formed in the seat body, and the second damping member is mounted in the receiving groove.

5. The self-moving device of claim 4, wherein: The thickness of the second damping member is not less than the depth of the receiving groove.

6. The self-moving device of claim 1, wherein: The extension direction of the elastic body portion is parallel to the height direction of the self-moving device.

7. The self-moving device of claim 1, wherein: The elastic body portion is configured in a column shape, and the first and second connecting portions are respectively arranged at two ends of the elastic body portion in the longitudinal direction.

8. The self-moving device of claim 1, wherein: The first connecting portion comprises a first screw hole located below the metal heat sink, and the self-moving device further comprises a first screw passing through the metal heat sink and connected to the first screw hole.

9. The self-moving device of claim 1, wherein: The second connecting portion comprises a second screw, and the housing further comprises a second screw hole, the second screw being connected to the second screw hole.

10. The self-moving device of claim 1, wherein: The first and second connecting portions are respectively integrally formed with the elastic body portion by injection molding.

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