CN216357961U

CN216357961U - Grass cutter

Info

Publication number: CN216357961U
Application number: CN202122870737.7U
Authority: CN
Inventors: 卞小贤; 刘涛
Original assignee: Suzhou Cleva Precision Machinery and Technology Co Ltd
Current assignee: Suzhou Cleva Electric Appliance Co Ltd; Suzhou Cleva Precision Machinery and Technology Co Ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-04-19
Anticipated expiration: 2031-11-22
Also published as: WO2023087511A1

Abstract

The utility model provides a mower which comprises a body and a first working unit, wherein the first working unit is arranged in the body and generates heat after being electrified and operated, an air duct is arranged in the body, an air inlet of the air duct is arranged on the windward side of the front end of the body, an air outlet of the air duct is arranged on the body behind the air inlet, a first radiator is arranged in the air duct and is connected with the heat generating part of the first working unit. According to the mower provided by the utility model, the air channel is arranged in the shell, the air inlet is arranged in the front, and the windward side of the mower is in contact with air when the mower walks forwards in the working process, so that the air is forced to enter the air channel through the air inlet and pass through the radiator of the camera to take away the heat on the radiator, thereby realizing the radiating effect on the camera, and prolonging the working time of the whole mower, particularly the working time in high-temperature weather.

Description

Grass cutter

Technical Field

The utility model relates to mowing equipment, in particular to a mower.

Background

The current intelligent lawn mower identifies the lawn through the visual sensor/camera and can generate heat in the working process of the visual sensor/camera. The conventional heat dissipation method is to expose the vision sensor/camera to the air and dissipate the heat through the air, but when the people encounter hot weather, the vision sensor/camera exposed to the air can also absorb the heat of solar radiation, so that the actual heat dissipation effect is poor, and finally, the working time of the mower is shortened, and even the mower is stopped.

In addition, the fan is designed for the other product, and the fan blows air to the surface of the radiator to take away heat, but the radiating fan needs to occupy the space of the product on one hand and increases the production cost and the use cost. In order to install the fan conveniently, a fixing structure matched with the fan needs to be designed, the structure of the mower needs to be adjusted greatly, the size and the weight of the mower are increased, electric energy needs to be consumed in the working process of the fan, and the working time of the mower is shortened.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the embodiments of the present invention is to provide a lawn mower, which can promote air to enter an air duct through the forward movement of the lawn mower, and dissipate heat of a heat sink in the air duct, so as to solve the problem of heat dissipation of a heat generating component in the lawn mower.

In order to solve the technical problem, the utility model provides a mower, which comprises a body and a first working unit, wherein the first working unit is arranged in the body and generates heat after being electrified and operated, an air duct is arranged in the body, an air inlet of the air duct is arranged on the windward side of the front end of the body, an air outlet of the air duct is arranged on the body behind the air inlet, a first radiator is arranged in the air duct, and the first radiator is connected with the heating part of the first working unit.

Optionally, the area of the air inlet is larger than the cross-sectional area of the air duct at the position of the first heat sink.

Optionally, the air inlet is provided in plurality, and the total area of the plurality of air inlets is larger than the cross-sectional area of the air duct at the position of the first radiator.

Optionally, the first working unit is a camera or a vision sensor, and is located above the air inlet on the body.

Optionally, a rechargeable battery is arranged in the body, and a charging interface of the rechargeable battery is positioned on the windward side of the front end of the body; correspondingly, the air inlet is communicated with the upper part of the charging interface.

Optionally, the body includes a base and an upper housing, wherein the first working unit is located on the upper housing, and the air inlet is located on the upper housing, or the air inlet is located between the upper housing and the base, or the air inlet is located on the base.

Optionally, when the air inlet is located between the upper casing and the base, the base is provided with an upward inclined surface.

Optionally, the air inlet is located near the bottom of the body.

Optionally, the wind-shading structure is positioned on the windward side of the front end of the body and is positioned right above the first working unit.

Alternatively, the first heat sink is directly connected to the heat generating portion of the first working unit, or the first heat sink is connected to the heat generating portion of the first working unit through a heat pipe.

Optionally, the outlet is located at the top, both sides or the rear of the body.

Optionally, a second radiator is further disposed in the air duct, the second radiator is connected to a second working unit through a heat pipe, and the second working unit is located in the body.

The technical scheme of the utility model has the following beneficial effects:

according to the mower provided by the utility model, the air channel is arranged in the shell, the air inlet is arranged in the front, and the windward side is in contact with air when the mower walks forwards in the working process, so that the air is forced to enter the air channel through the air inlet and pass through the radiator of the camera to take away the heat on the radiator, thereby realizing the radiating effect on the camera, and prolonging the working time of the whole mower, particularly the working time in high-temperature weather;

the air duct utilizes airflow generated by walking of the mower, does not use power devices such as a fan and the like, does not consume energy, and the air inlet is arranged in front of the air duct, so that the wind resistance can be reduced to a certain extent, and the working time of the mower can be prolonged;

when needed, heat generated by the operation of other structures (such as a motor, a battery and the like) in the mower can be dissipated through the air duct, so that the operating time of the mower is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a mower provided in the present embodiment.

Fig. 2 is another schematic structural diagram of the mower provided in this embodiment, in which a plurality of air inlets are shown.

Reference numerals in the drawings:

10-a body; 11-an upper shell; 12-a base; 13-an air duct; 14-a camera; 15-a heat sink; 16-a drive wheel; 17-a steering wheel; 18-a sunshade structure;

121-inclined plane; 131-an air inlet; 132-air outlet.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only. The terms "above" and "below" as used herein include not only the relationship between the upper and lower parts in the vertical direction in space but also the relationship between the upper and lower parts in the non-vertical direction in space; the terms "directly above" and "directly below" as used herein refer to the relationship between the top and bottom of the object in the vertical direction in space, and do not include the relationship between the top and bottom of the object in the non-vertical direction.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the present embodiment provides a lawn mower, which may be an intelligent lawn mower, and determines whether to continue to move forward or turn to trim by recognizing the height of the front lawn through a visual sensor or a camera, and the following method using a camera is taken as an example: the intelligent mower comprises a body 10 and a camera 14, wherein the camera 14 is arranged at the front end of the body 10 and is used for shooting lawn images in front of the intelligent mower in real time, and a heat radiator 15 is usually required to be arranged at a heating part of the camera 14 due to the fact that the camera 14 generates heat during the working process, particularly the heat is generated more when the temperature is high. How to conduct the heat generated by the camera out so as to reduce the temperature of the camera 14 and avoid the shutdown caused by the overheating of the camera is the technical problem to be solved by the utility model.

In this embodiment, can be along with the leading-in wind channel 13 of air current through designing one to arrange the cold junction of radiator 15 in wind channel 13, can realize not needing power drive air current such as fan and can realize the purpose to the cooling of radiator 15 and camera 14, thereby solved the too high problem of camera 14 working process temperature.

Specifically, the air inlet 131 of the air duct 13 is arranged on the windward side of the front end of the intelligent mower body 10, and the air outlet 132 is arranged on the intelligent mower body 10 behind the camera 14, which may be the top, the side, or the rear end; the heat radiator 15 of the camera 14 is arranged in the air duct 13, so that after airflow enters the air duct 13 through the air inlet 131, the airflow can be blown to the fins of the heat radiator 15 to cool the fins of the heat radiator 15, and heat exchange can be carried out between the heat radiator 15 and the camera 14, so that the temperature of the camera 14 is reduced.

In this embodiment, the air inlet 131 and the air outlet 132 of the air duct 13 are arranged in tandem, so that the airflow only needs to move relatively along the air duct 13 along with the advance of the intelligent mower and flows out through the air outlet 132 arranged at the rear, and a fan does not need to be designed inside the air duct 13 to drive the airflow in the process, so that the design cost does not need to be increased, and extra electric energy does not need to be consumed; meanwhile, the arrangement mode of the air inlet 131 and the air outlet 132 in tandem enables air flow on the windward side of the intelligent mower body 10 to naturally enter the air inlet 131 in the advancing process of the intelligent mower, reduces windward area, reduces wind resistance, enables the motor to consume less electric power in the process of driving the driving wheel 16 to advance, and can achieve an energy-saving effect.

The camera 14 in this embodiment may also adopt a visual sensor, and is not limited to the camera and the visual sensor, and may also perform cooling processing on other heating components through the air duct 13. Other heating components can also be connected with the radiator 15 in the air duct 13 in the working process of the intelligent mower, so that the intelligent mower can be cooled.

When using camera 14 or vision sensor, to avoid sunshine to insolate and lead to camera 14 or vision sensor temperature further to rise, set up sunshade structure 18 on body 10, sunshade structure 18 is preceding protrusion in the body setting, make its below form and shelter from the space, place camera 14 in the space that shelters from that sunshade structure 18 formed, thereby can make camera 14 place the shady and cool department in hot summer, avoid camera 14 to be insolated by sunshine, and the ultraviolet irradiation that the camera received has been reduced, thereby can prevent to expose the intensification that leads to because of sunshine, the camera that leads to has also reduced ultraviolet irradiation is ageing, can prolong the operating time and the life of camera.

According to the mower provided by the embodiment, the air duct 13 is arranged in the body 10, the air inlet 131 is arranged on the windward side in front of the mower, and the windward side is in contact with air when the mower walks forwards in the working process, so that the air is forced to enter the air duct through the air inlet and pass through the radiator of the camera to take away heat on the radiator, and therefore the radiating effect of the camera is achieved, the working time of the whole mower can be prolonged, and particularly the working time in high-temperature weather can be prolonged.

In the implementation process, the size of the air inlet 131 is related to the size of the air flow entering the air duct 13, so that the size of the air inlet 131 can be increased for obtaining larger flow capacity; the flow velocity of the air flowing through the heat sink 15 is related to the heat dissipation efficiency of the heat sink 15, i.e., the higher the flow velocity, the better the heat dissipation effect of the heat sink 15, and the smaller the cross-sectional area, the higher the flow velocity, with a constant flow rate. Therefore, in order to obtain a better heat dissipation effect of the heat sink 15, the area of the air inlet 131 may be designed to be larger than the cross-sectional area of the air duct 13 at the position of the heat sink 15, so that on one hand, a larger air flow rate is obtained through the air inlet 131, and on the other hand, the air flow in the air duct 13 has a higher flow velocity when flowing through the heat sink 15. By designing the cross-sectional areas of the air inlet 131 and the air duct 13 at the position of the heat sink, the flow velocity of the air flow can be amplified. In an ideal state with a constant cross section, the flow rate of the air flowing through the air inlet 131 and the heat sink 15 is equal to the advancing speed of the intelligent mower, but in an actual working process, due to the internal structural design of the air duct 13, the flow rate of the air flowing through the heat sink 15 is usually lower than the advancing speed of the intelligent mower, so that the problem of low heat dissipation efficiency objectively exists. The area of the air inlet 131 is designed to be larger than the cross-sectional area of the air duct 13 at the position of the radiator 15, so that the airflow velocity can be amplified, the airflow velocity flowing through the radiator 15 is larger than the advancing velocity of the intelligent mower, the radiator 15 can obtain a better radiating effect, and the cooling effect of a camera, a visual sensor and other heating units possibly connected with the radiator 15 is more obvious.

As shown in fig. 2, the air inlet 131 may also be provided in multiple numbers, so that the problem that the single air inlet is too large in size, which affects the appearance and the structural stability, can be avoided. The plurality of air inlets 131 may be arranged side by side or in a distributed manner. When a plurality of air inlets 131 are provided, the sum of the areas of all the air inlets 131 is larger than the cross-sectional area of the air duct 13 at the position of the heat sink 15. Based on the principle introduction of the above embodiment, it can be known that the effect of the design is the same as that of the above embodiment, and the design is also used for obtaining a larger airflow flow rate and a larger airflow velocity at the same time, so that the heat dissipation effect on the heat sink 15 is better, and a more significant cooling effect can be brought to the camera, the vision sensor and other heating units which may be connected with the heat sink 15.

The camera or the vision sensor of the intelligent lawn mower is usually disposed at the front end of the body 10 near the top, and accordingly, the air inlet 131 is located below the camera 14 or the vision sensor, so that the air inlet 131 can be closer to the lawn. In hot weather, because the photosynthesis of plant absorbs heat, in addition to the heat absorption of vapor evaporation, lead to near the air temperature in lawn can be less than or even far below the air temperature in the air, the distance lawn that sets up air intake 131 in this embodiment is closer, air intake 131 can obtain the gas that the temperature is lower, make the difference in temperature between air current and radiator 15 bigger, thereby make the air current better to the radiating efficiency of radiator, also make the camera 14 or the vision sensor's that are connected the heat transfer with radiator 15 lower temperature, make them can normally work under high temperature weather.

In an alternative embodiment, a rechargeable battery is arranged in the main body 10, and a charging interface of the rechargeable battery can be arranged on the windward side of the front end of the main body 10; correspondingly, the air inlet 131 is communicated with the upper portion of the charging interface, and the charging interface is used as the air inlet 131 or is used as a part of the air inlet 131, so that the product structure layout of the intelligent mower can be further optimized.

In another alternative embodiment, a replaceable battery pack is provided in the body 10, and when the power of the battery pack is exhausted, the intelligent lawn mower can continue to work as long as a new fully charged battery pack is replaced.

In an alternative embodiment, the body 10 of the intelligent lawn mower comprises a base 12 and an upper shell 11, wherein the upper shell 11 is vertically butted with the base 12, and main structural units such as a battery, a camera and the like of the intelligent lawn mower are fixed therein. The camera 14 is located on the upper housing 11, and the air inlet 131 can be selectively located on the upper housing 11, or the air inlet 131 is located at the interface between the upper housing 11 and the base 12, or the air inlet 131 is located on the base 12. Most of the air duct 13 will usually be disposed in the upper housing 11, but in practice, most or even all of the air duct 13 may be disposed in the base by those skilled in the art. Based on the knowledge of those skilled in the art, the overall size and the proportional relationship between the upper housing 11 and the base 12 can be adaptively adjusted, so that no matter how the size and the proportional relationship between the upper housing and the base, the air inlet 131 is disposed in the area close to the lawn, so that the air inlet obtains an air flow with a lower temperature, thereby providing a better cooling effect, and prolonging the working time of the whole intelligent lawn mower in a high-temperature weather.

In an alternative embodiment, the base 12 has an upwardly inclined ramp 121 when the intake vent 131 is positioned between the upper housing 11 and the base 12. At this time, the air duct 13 near the air inlet 131 is disposed in an upward or obliquely upward direction, so that the air flow can be guided more easily into the air inlet 131 by the provision of the inclined surface 121.

In an alternative embodiment, the heat sink 15 may be directly connected to the heat generating portion of the camera 14 as in the above embodiment, or may be selectively connected to the heat generating portion of the camera 14 through a heat pipe. Through the mode of heat pipe connection, can adjust the distance between camera 14 and the radiator 15 to can adjust the position or the gesture of radiator 15 in wind channel 13, thereby make radiator 15 can combine with the trend of wind channel 13 and the flow direction of air current more effectively, obtain better radiating effect.

In an alternative embodiment, a second radiator is further arranged in the air duct, and the second radiator is connected with a battery or a motor through a heat pipe, and the battery or the motor is located in the body. That is to say, can install the radiator more than two in the wind channel, can dispel the heat to a plurality of different positions that generate heat or heating element in the intelligent lawn mower to further ensure intelligent lawn mower normal operating under high temperature weather environment. The two radiators are usually arranged in the air duct in sequence to meet the different temperature requirements of different heating components; but may also be arranged in a side-by-side manner in the wind tunnel. The two radiators may be identical or different in structure.

In an alternative embodiment, the air duct 13 may be horizontally disposed, may be upwardly disposed, or may extend obliquely upwardly and then horizontally rearwardly in a combination of upwardly and horizontally disposed arrangements as shown in fig. 1-2.

Based on the embodiment of the present invention, it can be known to those skilled in the art that the intelligent lawn mower further needs to include necessary structures or units such as a cutting knife, a traveling mechanism, a protection mechanism, a control system, and the like.

The technical scheme of the utility model has the following beneficial effects:

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A mower comprises a body and a first working unit, wherein the first working unit is arranged in the body and generates heat after being electrified to work.

2. The mower of claim 1,

the area of the air inlet is larger than the cross-sectional area of the air duct at the position of the first radiator.

3. The mower of claim 2,

the air inlets are multiple, and the total area of the multiple air inlets is larger than the cross-sectional area of the air duct at the position of the first radiator.

4. The mower of claim 1,

the first working unit is a camera or a vision sensor and is positioned above the air inlet.

5. The mower of claim 4,

a rechargeable battery is arranged in the body, and a charging interface of the rechargeable battery is positioned on the windward side of the front end of the body; correspondingly, the air inlet is communicated with the upper part of the charging interface.

6. The mower according to claim 4 or 5,

the body comprises a base and an upper shell, wherein the first working unit is positioned on the upper shell, and the air inlet is positioned on the upper shell, or the air inlet is positioned between the upper shell and the base, or the air inlet is positioned on the base.

7. The mower of claim 6,

when the air inlet is positioned between the upper shell and the base, the base is provided with an inclined surface which inclines upwards.

8. The mower of claim 4,

the air inlet is positioned at a position close to the bottom of the body.

9. The mower of claim 4,

the wind-proof structure is positioned on the windward side of the front end of the body and is positioned right above the first working unit.

10. The mower of claim 1,

the first radiator is directly connected with the heating part of the first working unit, or the first radiator is connected with the heating part of the first working unit through a heat pipe;

and/or the air outlet is positioned at the top, two sides or the rear part of the body;

and/or a second radiator is further arranged in the air duct and connected with a second working unit, and the second working unit is positioned in the body.