CN213814000U

CN213814000U - Rainwater sensor and mobile device

Info

Publication number: CN213814000U
Application number: CN202022730663.2U
Authority: CN
Inventors: 杜帅
Original assignee: Ninebot Beijing Technology Co Ltd
Current assignee: Weilan continental (Beijing) Technology Co.,Ltd.
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-07-27
Anticipated expiration: 2030-11-23

Abstract

The embodiment of the utility model provides a rainwater sensor and mobile device. Wherein, rain sensor includes: the water collecting device comprises a shell, a water collecting tank and a water collecting device, wherein a communicating groove is formed at the bottom of the water collecting tank; an inductive electrode disposed within the communication groove; the water collecting tank comprises a plurality of protruding structures, and the protruding structures are arranged at the bottom of the water collecting tank. The embodiment of the utility model provides a technical scheme through setting up a plurality of protruding structures, can effectively avoid the rainwater problem of splashing, and protruding structure can pierce through and cut through the surface tension of raindrop for the raindrop scatters rapidly, subdivides into littleer raindrop, makes things convenient for the water catch bowl to assemble the intercommunication inslot with the raindrop fast, makes the response electrode switch on through the rainwater short circuit, and then realizes detecting the rainwater function.

Description

Rainwater sensor and mobile device

Technical Field

The utility model relates to an electronic equipment technical field especially relates to a rain sensor and mobile device.

Background

With the continuous development of science and technology, various automatic intelligent devices gradually come into the lives of people, for example, an automatic mower is one of the automatic mower. The automatic mower is generally used for carrying out operation outdoors to trim the lawn, thereby greatly reducing the labor intensity of people.

However, most of the automatic mowers on the market cannot quickly detect the rain weather when working in rainy days, so that the automatic mowers cannot quickly return to avoid rain when raining, and the automatic mowers often have bad problems caused by rain, and the use of the automatic mowers is influenced.

SUMMERY OF THE UTILITY MODEL

Embodiments of the present invention have been made in view of the above problems, and provide a rain sensor and a self-moving apparatus that solve or improve the above problems.

In an embodiment of the present invention, there is provided a rain sensor, including:

the water collecting device comprises a shell, a water collecting tank and a water collecting device, wherein a communicating groove is formed at the bottom of the water collecting tank;

an inductive electrode disposed within the communication groove;

the water collecting tank comprises a plurality of protruding structures, and the protruding structures are arranged at the bottom of the water collecting tank.

Optionally, the groove bottom of the water collection groove extends obliquely from the groove side wall of the water collection groove to the groove opening of the communication groove to gradually deepen the depth of the water collection groove.

Optionally, the communication groove is located in a central region of the water collecting groove, and a groove bottom of the water collecting groove is of a centripetal arc structure; or the bottom of the water collecting tank comprises at least one straight plate structure.

Optionally, the sensing electrode comprises a positive electrode and a negative electrode; the communicating groove is a rectangular groove, and the positive electrode and the negative electrode are respectively positioned at two opposite ends of the communicating groove.

Optionally, a positive connecting wire is connected to the positive electrode, a negative connecting wire is arranged on the negative electrode, and the positive connecting wire and the negative connecting wire respectively extend out of the shell from the bottom of the water collecting tank; or

The shell is provided with a positive electrode connecting port and a negative electrode connecting port respectively, and the positive electrode and the negative electrode are electrically connected with the positive electrode connecting port and the negative electrode connecting port respectively.

Optionally, a plurality of the projection structures are disposed around the communication groove.

Optionally, the raised structure tapers in cross-sectional area from one end connected to the trough bottom of the sump to the other end.

Optionally, the convex structure comprises one of a cone-shaped structure, a pyramid-shaped structure, a truncated cone-shaped structure, a truncated pyramid-shaped structure, or a combination thereof.

Optionally, the protrusion structure is an acute triangular prism structure, and is connected with the bottom of the water collecting tank through one of the four-sided surfaces.

Optionally, the two triangular faces of the acute triangular prism structure are inclined to each other.

Correspondingly, the embodiment of the utility model provides a mobile device is still provided, including the main frame body and as above-mentioned the rainwater sensor;

the main machine body is provided with a control unit;

the rainwater sensor is arranged on the main machine body and electrically connected with the control unit.

Further optionally, the mobile device comprises a robotic lawnmower, a robotic mobile, and a robotic mobile electric vehicle.

The embodiment of the utility model provides an among the technical scheme, through setting up a plurality of protruding structures, can effectively avoid the rainwater to sputter the problem, when the raindrop whereabouts moreover, impale and cut through the surface tension of raindrop through protruding structure for the raindrop scatters rapidly, subdivides into littleer raindrop, makes things convenient for the water catch bowl to assemble the raindrop fast in the intercommunication inslot, makes positive electrode and negative electrode switch on through the rainwater short circuit, and then realizes detecting the rainwater function.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of a rain sensor according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a rain sensor according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a mobile device according to an embodiment of the present invention;

fig. 4 is a schematic side view of a rain sensor according to an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view taken along the line A-A in FIG. 4;

fig. 6 is a schematic top view of a rain sensor according to an embodiment of the present invention;

fig. 7 is a schematic cross-sectional view taken along the plane B-B in fig. 6.

Description of reference numerals:

10: a housing; 11: a water collection tank; 12: a communicating groove; 13: connecting columns;

200: an induction electrode; 20: a positive electrode; 21: a negative electrode; 22: a positive electrode connecting wire; 23: a negative electrode connecting wire;

30: a raised structure;

40: a main body;

50: a rain sensor.

Detailed Description

In order to make the technical field person understand the scheme of the present invention better, the following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical scheme in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that, in the description of the present invention, the terms "first" and "second" are only used for convenience in describing different components or names, and are not to be construed as indicating or implying a sequential relationship, relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

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 invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Fig. 1 is the utility model provides a spatial structure schematic diagram of rainwater sensor, fig. 2 is the utility model provides a rainwater sensor's decomposition structure schematic diagram, it is shown with reference to fig. 1 and fig. 2 to refer to.

In an embodiment of the present invention, there is provided a rain sensor, including: the device comprises a shell 10, a sensing electrode 200 and a plurality of convex structures 30.

Wherein, the shell 10 is provided with a water collecting tank 11, and a communicating groove 12 is arranged at the bottom of the water collecting tank 11. When the rainwater falls on the bottom of the water collecting tank 11, the rainwater can be collected into the communicating tank 12.

The sensing electrode 200 is disposed in the communication groove 12. After rainwater flows into the communication groove 12, the rainwater contacts the sensing electrode 200, so that the sensing electrode 200 is switched on through rainwater short circuit, and a rainwater detection function is realized.

A plurality of protruding structures 30 set up at the tank bottom of water catch bowl 11, through setting up a plurality of protruding structures 30, can effectively avoid rainwater splash problem, and when the raindrop whereabouts, impale and cut through protruding structure 30 and cut through the surface tension of raindrop moreover for the raindrop scatters rapidly, subdivides into littleer raindrop, makes things convenient for water catch bowl 11 to assemble the raindrop in the intercommunication groove 12 fast.

For example, in the embodiment of the present invention, the rain sensor can be applied to a mobile device, which includes but is not limited to a robotic lawnmower, a self-moving robot, and a self-moving electric vehicle. Taking the mobile device as an automatic mower as an example, referring to fig. 3, the mobile device comprises a main body 40 and a rain sensor 50. The main body 40 is provided with a control unit (the control unit is provided inside the main body 40 and thus not shown in fig. 3). The rain sensor 50 is provided on the main body 40 and electrically connected to the control unit. The rain sensor 50 is provided on top of the movable apparatus so that rain drops on the rain sensor 50 when it rains.

When the movable equipment works under the rainy weather condition, the rainwater falls into the water collecting tank 11, and because a plurality of protruding structures 30 are arranged in the water collecting tank 11, the situation that the raindrops are sputtered is reduced through the blocking of the protruding structures 30, and the surface tension of the raindrops is damaged through the division of the protruding structures 30, so that the raindrops can form smaller water drops, the raindrops are rapidly dispersed, and the sputtering condition is further reduced. Rainwater can be gathered in the communicating groove 12 through the groove bottom of the water collecting groove 11 and is in contact with the induction electrode 200, so that the induction electrode 200 is conducted through rainwater short circuit, and the conducted signal is fed back to the control unit. The control unit is connected with a driving motor of the movable equipment, and after receiving the signal of conduction of the induction electrode 200, the control unit sends a control signal to the driving motor, so that the movable equipment is controlled to return to the rain sheltering state.

The technical solution provided by the embodiment of the present invention is further described in detail below.

In order to better realize that the rainwater is rapidly gathered towards the communication groove 12, in the embodiment of the present invention, an achievable manner of the water collection groove 11 is that the groove bottom of the water collection groove 11 is inclined to extend to the notch of the communication groove 12 from the groove side wall of the water collection groove 11, so that the depth of the water collection groove 11 is gradually deepened. When rainwater falls on the bottom of the water collection tank 11, the rainwater can be quickly gathered to the communication tank 12 to flow into the communication tank 12 because the bottom of the tank is inclined toward the opening of the communication tank 12.

Further, with continued reference to fig. 1 and fig. 2, in the embodiment of the present invention, another achievable manner of the water collecting tank 11 is that the communicating groove 12 is located in the central region of the water collecting tank 11, and the bottom of the water collecting tank 11 is a centripetal arc structure. The shape of the notch of the water collecting tank 11 includes, but is not limited to, rectangle, circle, etc., and forms a structure similar to a funnel through the bottom of the centripetal arc structure, and the lowest end of the funnel is the notch of the communicating groove 12. After falling into the water collecting tank 11, the rainwater gradually flows into the communicating groove 12 along the centripetal arc structure.

Further, to better achieve a rapid accumulation of rainwater to the communication channel 12, it is also possible that the bottom of the communication channel 12 comprises at least one straight plate structure. For example, the bottom of the water collection sump 11 is formed by a straight plate structure, the communication groove 12 is located at one side edge of the water collection sump 11, and the straight plate structure is inclined toward the communication groove 12 from the opposite edge at the other side so that rainwater flows toward the communication groove 12 when falling into the water collection sump 11. For another example, the bottom of the water collection tank 11 is constituted by a plurality of straight plate structures forming an inverted pyramid-shaped funnel, and the communication tank 12 is located at the lowermost portion of the pyramid-shaped funnel so that rainwater flows into the communication tank 12. When the tank bottom of water catch bowl 11 includes the straight plate structure, intercommunication groove 12 can set up the central point who puts at water catch bowl 11, also can set up at border position, in the embodiment of the utility model provides an, do not specifically prescribe a limit to.

With continued reference to fig. 1 and fig. 2, in the embodiment of the present invention, the sensing electrode 200 can be realized in a manner that the sensing electrode 200 includes a positive electrode 20 and a negative electrode 21. The positive electrode 20 and the negative electrode 21 are arranged at intervals in the communication groove 12. When rainwater flows into the communication groove 12, the rainwater contacts the positive electrode 20 and the negative electrode 21, so that the positive electrode 20 and the negative electrode 21 are conducted by rainwater short circuit, and the rainwater is fed back to the control unit after the positive electrode 20 and the negative electrode 21 are conducted.

Further, in a practical aspect of the communication groove 12, the communication groove 12 is a rectangular groove, and the positive electrode 20 and the negative electrode 21 are respectively located at two opposite ends of the communication groove 12. When rainwater flows into the communication groove 12, the rainwater contacts the positive electrode 20 and the negative electrode 21, and short-circuits the positive electrode 20 and the negative electrode 21. The diameters of the positive electrode 20 and the negative electrode 21 may be matched to the width of the communication groove 12, and then the positive electrode 20 and the negative electrode 21 may be directly provided in the communication groove 12. The diameters of the positive electrode 20 and the negative electrode 21 may be larger than the width of the communication groove 12, mounting grooves for mounting the electrodes are provided at opposite ends of the communication groove 12, and the positive electrode 20 and the negative electrode 21 are disposed in the mounting grooves. In order to prevent rainwater from entering the interior of the mobile device, the gap between the electrode and the communication groove 12 is subjected to a sealing treatment, for example, by a sealant or by a sealing ring.

After the positive electrode 20 and the negative electrode 21 are short-circuited and conducted, signals need to be fed back to the control unit, so that the positive electrode 20 and the negative electrode 21 need to be electrically connected with the outside. In the embodiment of the present invention, the positive electrode 20 and the negative electrode 21 are electrically connected to the outside, including but not limited to the following:

in an implementation manner, with continued reference to fig. 1 and 2, the positive electrode 20 is connected with the positive connection line 22, the negative electrode 21 is provided with the negative connection line 23, and the positive connection line 22 and the negative connection line 23 respectively extend out of the housing 10 from the bottom of the water collection tank 11. Realize positive electrode 20 and negative electrode 21 and outside electric connection through the connecting wire, the length of connecting wire can set up according to the demand of difference, and consequently, rainwater sensor's the restriction of setting up position is littleer, and is more diversified. Further, in order to protect the connecting wires, the connecting wires at the accessories of the shell 10 are prevented from being bent and broken. The embodiment of the utility model provides an in, still be provided with spliced pole 13 on the casing 10, be equipped with the via hole on the spliced pole 13 to the connecting wire passes. The connection post 13 may be one, i.e., the positive connection wire 22 and the negative connection wire 23 share one connection post 13. Or two connecting posts 13 are provided, and the positive connecting wire 22 and the negative connecting wire 23 are respectively protected by one connecting post 13.

Further, the connecting column 13 and the housing 10 can be integrally formed, such as injection molding by plastic material. Alternatively, the connection post 13 and the housing 10 are formed as separate bodies, and the connection post 13 is injection-molded on the housing 10. In order to protect the connecting wire, when the connecting column 13 is subjected to injection molding, the connecting wire is encapsulated and injected into the connecting column 13, so that the connecting wire can be protected and can be sealed and waterproof.

Another way of electrically connecting the positive electrode 20 and the negative electrode 21 with the outside is that the case 10 is provided with a positive connection port and a negative connection port, respectively, and the positive electrode 20 and the negative electrode 21 are electrically connected with the positive connection port and the negative connection port, respectively. The rainwater sensor is not additionally provided with a connecting wire, and can be directly electrically communicated with the outside through the positive connecting port and the negative connecting port on the shell 10, so that the installation is more convenient, and the rainwater sensor is smaller. Meanwhile, no external connecting wire is arranged, so that when the positive electrode 20 and the negative electrode 21 are electrically connected with the outside, the failure rate is reduced, and the condition that the positive electrode cannot work due to wire breakage is avoided.

Continuing to refer to fig. 1 and 2, a setting mode of the plurality of protruding structures 30 is that the plurality of protruding structures 30 are arranged around the communicating groove 12, and through the arrangement of the plurality of protruding structures 30, the problem of rainwater sputtering around the communicating groove 12 can be effectively avoided, and when raindrops fall down, the raindrops are pierced and cut through the protruding structures 30 by surface tension, so that the raindrops are rapidly dispersed and subdivided into smaller raindrops, and the water collecting groove 11 is convenient for rapidly gathering the raindrops into the communicating groove 12.

Referring to fig. 4 to 7 in conjunction with fig. 1 and 2, in order to better divide the raindrops by the protrusion structure 30, in the embodiment of the present invention, the cross-sectional area of the protrusion structure 30 from one end connected to the bottom of the water collecting tank 11 to the other end is gradually reduced. That is, the end of the protrusion structure 30 facing rain is relatively sharp, and when raindrops fall, the sharp end of the protrusion structure 30 can pierce or cut the tension of the raindrops, so that the raindrops are dispersed into smaller raindrops, and the raindrops are rapidly dispersed.

In the embodiment of the present invention, the implementation manner of the protruding structure 30 includes multiple types, such as, including but not limited to, one of a cone-shaped structure, a pyramid-shaped structure, a truncated cone-shaped structure, and a truncated pyramid-shaped structure, or the cone-shaped structure, the pyramid-shaped structure, the truncated cone-shaped structure, and the truncated cone-shaped structure can be mutually combined and set, such as according to different positions where, the protruding structure 30 with different structures is set. The bump structures 30 may be arranged uniformly according to a predetermined arrangement matrix, or may be arranged randomly according to requirements.

Further, referring to fig. 4 to 7, another way of realizing the convex structure 30 is that the convex structure 30 is an acute triangular prism structure, and is connected with the bottom of the water collecting tank 11 through one of the quadrilateral faces. The parallel surfaces on the two sides of the acute triangular prism structure are acute triangles, and the raindrop is divided by taking an acute angle as a rain facing end. And removing the angle of the rain-facing end of the acute triangular prism structure to form the frustum pyramid structure.

Further, referring to fig. 6, the two triangular faces of the acute triangular prism structure are disposed to be inclined toward each other. After the acute triangles on the two sides of the acute triangular prism structure are inclined oppositely, the water-facing end is more sharp, and meanwhile, the processing and forming are also convenient. The protrusion structure 30 and the housing 10 may be integrally formed, and made of a hard plastic material by an injection molding process.

It should be noted that, the above description of the implementation of the rain sensor through fig. 1 to 7 is only schematic, and is intended to briefly describe the technical features of the embodiment of the present invention, so that those skilled in the art can directly understand the technical features of the embodiment of the present invention, and the embodiment of the present invention is not limited by the foregoing description.

The rain sensor provided by the above embodiments can be applied to mobile devices, including but not limited to, robotic mowers, robotic robots, electric vehicles, and other devices that employ rain sensors. The electric vehicle includes but is not limited to electric vehicles, electric bicycles, electric scooters, electric balance cars and electric scooters, especially children's electric scooters. Other devices that employ rain sensors include, but are not limited to, aircraft, self-moving robots, and the like. Aircraft include, but are not limited to, unmanned agricultural aircraft, unmanned inspection aircraft, and the like. Robots include, but are not limited to: a field operation robot, a household robot, etc.

Correspondingly, with reference to fig. 3 in combination with fig. 1, 2, 4 to 7, embodiments of the present invention further provide a mobile device, which includes a main body 40 and a rain sensor 50 as in the above embodiments. The main body 40 is provided with a control unit. The rain sensor 50 is provided on the main body 40 and electrically connected to the control unit.

Referring to fig. 1, 2, 4 to 7, the rain sensor includes: the housing 10, the sensing electrode 200 and the protrusion structure 30. Wherein, the shell 10 is provided with a water collecting tank 11, and a communicating groove 12 is arranged at the bottom of the water collecting tank 11. When the rainwater falls on the bottom of the water collecting tank 11, the rainwater can be collected into the communicating tank 12.

It should be noted that, for a specific implementation of the rain sensor 50, reference may be made to the contents in the foregoing embodiments, and details are not described here.

To sum up, the embodiment of the utility model provides an among the technical scheme, through setting up a plurality of protruding structures, can effectively avoid the rainwater to sputter the problem, when the raindrop whereabouts moreover, impale and cut through the surface tension of raindrop through protruding structure for the raindrop scatters rapidly, subdivides into littleer raindrop, makes things convenient for the water catch bowl to assemble the raindrop fast in the intercommunication inslot, makes positive electrode and negative electrode switch on through the rainwater short circuit, and then realizes detecting the rainwater function.

It should be noted that, although the specific embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention should not be construed as limited to the scope of the present invention. Various modifications and variations that may be made by those skilled in the art without inventive faculty within the scope of the embodiments of the invention described herein remain within the scope of the invention.

The examples of the embodiment of the present invention are intended to concisely illustrate the technical features of the embodiments of the present invention, so that a person skilled in the art can visually understand the technical features of the embodiments of the present invention, and do not act as an improper limitation of the embodiments of the present invention.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A rain sensor, comprising:

an inductive electrode disposed within the communication groove;

2. The rain sensor according to claim 1, wherein a groove bottom of the water collection groove extends obliquely from a groove side wall of the water collection groove to a notch of the communication groove to gradually deepen a depth of the water collection groove.

3. The rain sensor according to claim 1, wherein the communication channel is located in a central region of the water collection channel, and a channel bottom of the water collection channel is in a centripetal arc structure; or

The bottom of the water collection tank comprises at least one straight plate structure.

4. The rain sensor of claim 1, wherein said sensing electrode comprises a positive electrode and a negative electrode;

the communicating groove is a rectangular groove, and the positive electrode and the negative electrode are respectively positioned at two opposite ends of the communicating groove.

5. The rain sensor of claim 4, wherein a positive connection line is connected to said positive electrode, a negative connection line is provided on said negative electrode, and said positive connection line and said negative connection line extend outwardly from a bottom of said water collection tank, respectively, out of said housing; or

6. The rain sensor according to any one of claims 1 to 5, wherein a plurality of said protrusion structures are provided around said communication groove.

7. The rain sensor of any one of claims 1 to 5, wherein the raised structure tapers in cross-sectional area from one end connected to the trough bottom of the water collection trough to the other end.

8. The rain sensor of claim 6, wherein the raised structure comprises one of a cone-type structure, a pyramid-type structure, a truncated cone-type structure, a truncated pyramid-type structure, or a combination thereof.

9. The rain sensor of claim 6, wherein said protrusion is an acute triangular prism connected to a bottom of said water collection tank by one of said quadrilateral faces.

10. The rain sensor of claim 9, wherein the two triangular faces of said acute triangular prism structure are disposed obliquely to each other.

11. A mobile device comprising a main body and a rain sensor as claimed in any one of claims 1 to 10;

the main machine body is provided with a control unit;

12. The mobile device of claim 11, wherein the mobile device comprises a robotic lawnmower, a robotic mobile robot, and a robotic mobile electric vehicle.