CN218497168U - Induction device - Google Patents

Abstract

The utility model belongs to the technical field of intelligent house, especially, relate to an induction system. The sensing device includes: the induction device comprises a shell, a window, an induction element and two shielding structures, wherein the shell and the window are surrounded to form an accommodating cavity, the induction element is positioned in the accommodating cavity, the induction end of the induction element faces the window, the two shielding structures are connected with the shell and respectively positioned at two ends of the window, the induction device has a first state and a second state, the first state is that the window is completely exposed to the two shielding structures, and the second state is that at least one shielding structure is partially overlapped with the window; the two shielding structures can switch the first state and the second state of the sensing device from the two ends of the window through position change or shape change, so that the sensing range of the sensing device is adjusted.

Description

Induction device

Technical Field

The utility model belongs to the technical field of intelligent house, especially, relate to an induction system.

Background

The common human body passive infrared sensing device in the existing market is usually provided with an optical Fresnel lens with a fixed sensing angle and range, and the device with the fixed sensing angle and sensing distance is often too large or too small in sensing range fed back by a user when being installed in an actual use environment, particularly when the device is installed on an outer wall of a house, the device with the large sensing range is often provided with a device with one side capable of detecting the motion of a human body in an area which is not required to be sensed by the user, such as the motion of the human body in a user yard or the motion of the human body of an adjacent household yard; although some human body passive infrared sensing devices are provided with a rotatable bracket, the human body passive infrared sensing devices still cannot bring good experience improvement to users.

SUMMERY OF THE UTILITY MODEL

An object of the present application is to provide an induction device, which aims to solve the problem of how to adjust the induction range of the induction device.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: an induction device is provided, comprising: the induction device comprises a shell, a window, an induction element and two shielding structures, wherein the shell and the window are surrounded to form an accommodating cavity, the induction element is positioned in the accommodating cavity, the induction end of the induction element faces the window, the two shielding structures are connected with the shell and respectively positioned at two ends of the window, the induction device has a first state and a second state, the first state is that the window is completely exposed to the two shielding structures, and the second state is that at least one shielding structure is partially overlapped with the window; wherein the shielding structure changes position or shape to switch the first state and the second state of the sensing device.

In some embodiments, the shielding structure is a folding plate that can change shape to partially overlap the viewing window.

In some embodiments, the shielding structure is a baffle slidably connected to the housing and capable of sliding a predetermined distance to partially overlap the window.

In some embodiments, the housing includes a top cover, a bottom cover and a side plate, the side plate and the window enclose to form the accommodating cavity, and the top cover and the bottom cover respectively cover the openings at two ends of the accommodating cavity; the baffle is slidably connected with the side plate, or the baffle is slidably connected with at least one of the top cover and the bottom cover.

In some embodiments, the edge of the bottom cover is provided with first guide grooves corresponding to positions of the baffles, each first guide groove extends along the circumferential direction of the accommodating cavity, and one end of each baffle is slidably disposed in the corresponding first guide groove.

In some embodiments, the baffle plate includes a plate body and a guide post protruding from one end of the plate body, and the guide post is slidably disposed in the first guide groove.

In some embodiments, a second guide groove is formed in a position, corresponding to each baffle, of the edge of the top cover, each second guide groove extends along the circumferential direction of the accommodating cavity, and one end of each baffle is slidably disposed in the corresponding second guide groove.

In some embodiments, the top cover is marked with a scale for measuring the sensing angle of the sensing element.

In some embodiments, the outer plate surface of the baffle is convexly provided with a push block.

In some embodiments, the sensing device further comprises a rotating bracket, and the housing is rotatably connected to the rotating bracket.

The beneficial effect of this application lies in: induction system includes casing, window, sensing element and two structures of sheltering from, and two shelter from the structure and lie in the both ends of window respectively along the circumference in holding chamber, and two shelter from the structure and can follow the both ends of window and change and switch induction system's first state and second state through position change or shape change to adjust induction element's response angle, and finally realize induction system's response scope's regulation.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for the embodiments or exemplary technical descriptions will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts.

Fig. 1 is a schematic perspective view of an induction device according to an embodiment of the present disclosure;

FIG. 2 is a schematic perspective view of the sensing device of FIG. 1 from another perspective;

FIG. 3 is an exploded schematic view of the induction device of FIG. 1;

fig. 4 is a schematic structural diagram of a folding plate provided in an embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

100. an induction device; 10. A housing; 11. A top cover;

12. a bottom cover; 13. A side plate; 20. A window;

40. calibration; 34. A shielding structure; 30. A baffle plate;

33. folding the board; 121. A first guide groove; 111. A second guide groove;

50. a push block; 14. An accommodating cavity; 15. A window;

31. a plate body; 32. A guide post; 60. An inductive element;

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application, and the specific meaning of the terms will be understood by those skilled in the art according to the particular situation. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.

Referring to fig. 1 to 3, in an embodiment of the present invention, a sensing device 100 is provided, where the sensing device 100 can be installed in an area to be monitored, and can sense a human body or other objects capable of generating an infrared signal within a sensing range of the sensing device, so as to provide security for the monitored area. The sensing device 100 includes: the housing 10, the window 20, the sensing element 60 and the two shielding structures 34. The housing 10 and the window 20 enclose a receiving cavity 14.

The housing 10 may be an injection molded material and formed by an injection molding process. Wherein, the injection molding material can be polyethylene. The housing 10 may also be made of metal and formed by a sheet metal process, such as stainless steel, aluminum alloy, iron, etc. The housing 10 may also be made of glass or ceramic. Optionally, the housing 10 is made of a material that is opaque to light. In the present embodiment, the housing 10 has a cylindrical shape. In other embodiments, the housing 10 may also be a sphere, a cuboid, a cube, or the like, which is not limited herein and may be selected according to actual situations. Optionally, a window 15 communicating with the inside of the casing 10 is formed in a side surface of the casing 10, and the window 20 is disposed at the window 15 and surrounds the casing 10 to form an accommodating cavity 14. The sensing element 60 is located in the accommodating cavity 14, and a sensing end of the sensing element 60 faces the window 20.

Optionally, the cross-sectional shape of the accommodating cavity 14 is circular, the inner surface of the window 20 is a concave arc surface, and the outer surface of the window 20 is a convex arc surface.

Referring to fig. 1 to 3, the window 20 may be made of plastic, glass, or ceramic. The window 20 is arranged at the window 15. The infrared signal can pass through the window 20 and be received by the sensing element 60 inside the receiving cavity 14. Optionally, the viewing window 20 may be a fresnel lens. Fresnel lenses (Fresnel lenses), also known as screw lenses, are mostly sheets of polyolefin material that are injection-molded, and are also made of glass, one surface of the lens is smooth, and the other surface is inscribed with concentric circles from small to large, and the texture of the lens is designed according to the requirements of light interference and interference, relative sensitivity and receiving angle.

Alternatively, the sensing element 60 may be a pyroelectric infrared sensor or a human body infrared sensing sensor, which may sense an infrared signal of a human body. In the sensing range of the sensing device 100, if a human body exists, infrared rays emitted from the human body pass through the window 20 to reach the sensing end of the sensing element 60, and the sensing element 60 senses the infrared rays to generate an electrical signal, so as to sense the existence of the human body in the sensing range.

It is understood that two or more than two sensing elements 60 can be provided, which is not limited herein and can be selected according to the actual situation.

Referring to fig. 1 to fig. 3, optionally, two shielding structures 34 are connected to the housing 10 and respectively located at two ends of the window 20, the sensing device 100 has a first state and a second state, the first state is that the window 20 is completely exposed to the two shielding structures 34, and the second state is that at least one shielding structure 34 is partially overlapped with the window 20; wherein the shielding structure 34 changes position or changes shape to switch the first state and the second state of the sensing device 100.

Referring to fig. 1 to 3, the shielding structure 34 may be made of plastic, rubber, or metal. Wherein, the metal material can be stainless steel, aluminum alloy or iron. The shielding structure 34 can block the passage of infrared rays. The shape of the shielding structure 34 matches the shape of the viewing window 20. It can be understood that, when the sensing device 100 is in the first state, neither of the shielding structures 34 overlaps the window 20, so that the sensing range of the sensing device 100 is the maximum. When the sensing device 100 is in the second state, at least one of the shielding structures 34 overlaps with the structure of the window 20, so that the sensing range of the sensing device 100 is reduced, and the sensing range of the sensing device 100 is adjusted. Alternatively, the shielding structure 34 can be partially overlapped with the window 20 by changing the connecting position of the shielding structure 34 and the housing 10. Or the shielding structure 34 may be partially overlapped with the window 20 by changing its shape, for example, the shielding structure 34 is made of a rubber material, and the rubber material has elasticity, and the shielding structure 34 is elastically deformed to enlarge the area of the shielding structure 34, so as to partially overlap with the window 20. It will be appreciated that the position where the shielding structure 34 overlaps the viewing window 20 is not passed by the infrared signal, and thus the sensing angle of the sensing element 60 is changed.

Referring to fig. 1 to 3, the sensing device 100 provided in the present embodiment includes a housing 10, a window 20, a sensing element 60, and two shielding structures 34, wherein the two shielding structures 34 are respectively located at two ends of the window 20 along a circumferential direction of the accommodating cavity 14, and the two shielding structures 34 can respectively switch a first state and a second state of the sensing device 100 from the two ends of the window 20 through position change or shape change, so as to adjust a sensing angle of the sensing element 60, and finally achieve adjustment of a sensing range of the sensing device 100.

Referring to fig. 4, in some embodiments, the shielding structure 34 is a folding plate 33, and the folding plate 33 can change shape to partially overlap with the window 20. Alternatively, an end of the folding plate 33 away from the viewing window 20 is fixedly connected to the housing 10, and an end of the folding plate 33 adjacent to the viewing window 20 is bent along a circumferential direction of the receiving cavity 14 and can move a predetermined distance toward the viewing window 20, so that the folding plate 33 overlaps the viewing window 20.

Referring to fig. 1 to 3, in some embodiments, the shielding structure 34 is a baffle 30, and the baffle 30 is slidably connected to the housing 10 and can slide a predetermined distance to partially overlap the window 20. Optionally, the plate surface of the baffle 30 is appropriately curved to fit the shape of the accommodating cavity 14, in this embodiment, the baffle 30 is disposed in a concave arc surface facing the plate surface of the housing 10, the surface of the baffle 30 facing away from the housing 10 is disposed in a convex arc surface, and the baffle 30 can slide in a reciprocating manner along the circumferential direction of the accommodating cavity 14 by a predetermined distance under the driving of an external force, so as to switch the first state and the second state of the sensing device 100.

In some embodiments, the housing 10 includes a top cover 11, a bottom cover 12 and a side plate 13, the side plate 13 and the window 20 enclose to form the accommodating cavity 14, and the top cover 11 and the bottom cover 12 respectively cover openings at two ends of the accommodating cavity 14; alternatively, the cross-sectional area of the receiving cavity 14 is gradually enlarged in a direction in which the top cover 11 is directed toward the bottom cover 12.

Referring to fig. 1 to fig. 3, optionally, the two baffles 30 are slidably connected to two ends of the side plate 13, two sliding grooves may be formed at two ends of the window 20 abutting against the side plate 13, and sliding connection posts are protrudingly formed on an inner plate surface of the baffle 30 facing inward the sliding grooves, so that the two baffles 30 are connected to two ends of the side plate 13, respectively.

Optionally, the baffle 30 is slidably coupled to at least one of the top cover 11 and the bottom cover 12. In this embodiment, the two baffles 30 are both located between the top cover 11 and the bottom cover 12, and two ends of any baffle 30 are respectively connected to the top cover 11 and the bottom cover 12 in a sliding manner, so as to improve the connection stability of the baffles 30.

Referring to fig. 1 to 3, in some embodiments, a first guide groove 121 is formed at a position corresponding to each baffle 30 on an edge of the bottom cover 12, each first guide groove 121 extends along a circumferential direction of the accommodating cavity 14, and one end of each baffle 30 is slidably disposed in the corresponding first guide groove 121.

Alternatively, the extending path of the first guide groove 121 is arranged in an arc, and the extending path of the first guide groove 121 partially overlaps the window 20, so that the baffle 30 can partially overlap the window 20 when sliding along the first guide groove 121.

In some embodiments, the baffle 30 includes a plate body 31 and a guiding pillar 32 protruding from one end of the plate body 31, and the guiding pillar 32 is slidably disposed in the first guiding groove 121. Optionally, the guide posts 32 are arranged at intervals, and through the sliding fit between the guide posts 32 and the first guide groove 121, the contact area between the baffle 30 and the inner wall of the first chute can be reduced, and the friction force between the baffle 30 and the inner wall of the first guide groove 121 is reduced, so that the baffle 30 is convenient to drive.

Referring to fig. 1 to fig. 3, in the present embodiment, three guide pillars 32 are arranged, and three guide pillars 32 are arranged at intervals, in other embodiments, the number of the guide pillars 32 may also be four or more, which is not limited herein and can be selected according to the actual situation.

Referring to fig. 1 to 3, in some embodiments, a second guide groove 111 is formed at a position corresponding to each baffle 30 on the edge of the top cover 11, each second guide groove 111 extends along the circumferential direction of the accommodating cavity 14, and one end of each baffle 30 is slidably disposed in the corresponding second guide groove 111.

It can be understood that the plate body 31 is also provided with a protruding guide post 32 at an end corresponding to the second guide groove 111, and the friction between the baffle 30 and the inner wall of the second guide groove 111 can be reduced.

In some embodiments, the top cover 11 is carved with a scale 40, and the scale 40 is used for measuring the sensing angle of the sensing element 60.

Referring to fig. 1 to 3, optionally, the top cover 11 is provided with scales 40 at positions corresponding to the two baffles 30, where the scales 40 include a 180-degree scale 40 value, a 240-degree scale 40 value, and a 270-degree scale 40 value. By pushing the baffle 30 to the corresponding scale 40, the sensing angle of the sensing element 60 can be directly obtained from the scale 40, and the sensing range of the sensing device 100 can be known through the sensing angle.

Referring to fig. 1 to 3, for example, the plate edges of the two baffles 30 are respectively aligned to the scale 40 value of 180 degrees, so that the sensing angle of the sensing element 60 is 180 degrees, and the sensing range of the sensing device 100 can be obtained according to the sensing angle.

In some embodiments, the outer plate surface of the baffle 30 is convexly provided with a push block 50. The human hand drives the baffle 30 to slide back and forth through the push block 50, and the operation is convenient.

Referring to fig. 1 to 3, in some embodiments, the sensing device 100 further includes a rotating bracket, and the housing 10 is rotatably connected to the rotating bracket. Optionally, the housing 10 can be mounted on the wall through the rotating bracket, and the housing 10 can rotate 360 degrees relative to the bracket, so that the whole stepless adjustment of the device is realized, that is, human body induction can be performed in any direction.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims (10)

1. An inductive device, comprising: the induction device comprises a shell, a window, an induction element and two shielding structures, wherein the shell and the window are surrounded to form an accommodating cavity, the induction element is positioned in the accommodating cavity, an induction end of the induction element faces the window, the two shielding structures are connected with the shell and respectively positioned at two ends of the window, the induction device has a first state and a second state, the first state is that the window is completely exposed to the two shielding structures, and the second state is that at least one shielding structure is partially overlapped with the window; wherein the shielding structure changes position or shape to switch the first state and the second state of the sensing device.

2. The inductive device of claim 1, wherein: the shielding structure is a folding plate, and the folding plate can change the shape so as to be partially overlapped with the window.

3. The inductive device of claim 1, wherein: the shielding structure is a baffle plate which is connected with the shell in a sliding mode and can slide for a preset distance to be partially overlapped with the window.

4. The inductive device of claim 3, wherein: the shell comprises a top cover, a bottom cover and side plates, the side plates and the windows are arranged in an enclosing mode to form the accommodating cavity, and the top cover and the bottom cover cavity openings at two ends of the accommodating cavity respectively; the baffle is slidably connected to the side plate, or the baffle is slidably connected to at least one of the top cover and the bottom cover.

5. The inductive device of claim 4, wherein: the edge of the bottom cover corresponds to the position of each baffle and is provided with a first guide groove, each first guide groove extends along the circumferential direction of the accommodating cavity, and one end of each baffle is slidably arranged in the corresponding first guide groove.

6. The inductive device of claim 5, wherein: the baffle includes the plate body and protruding the guide post of locating plate body one end, the guide post slide set up in the first guide slot.

7. The inductive device of claim 4, wherein: the edge of top cover corresponds each the position of baffle has all seted up the second guide slot, each the second guide slot all follows the circumference in holding chamber extends to arrange, the one end of baffle slide set up in corresponding in the second guide slot.

8. The inductive device of any one of claims 4 to 7, wherein: scales are carved on the top cover and used for measuring the induction angle of the induction element.

9. The inductive device of any one of claims 3 to 7, wherein: the outer plate surface of the baffle is convexly provided with a push block.

10. The inductive device of any one of claims 1 to 7, wherein: the induction system further comprises a rotating bracket, and the shell is rotatably connected with the rotating bracket.

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