CN221325689U

CN221325689U - Waterproof construction and infrared induction device

Info

Publication number: CN221325689U
Application number: CN202323366707.8U
Authority: CN
Inventors: 陈俊兴; 张明骋
Original assignee: Guangdong Zhongmo Security Equipment Co ltd
Current assignee: Guangdong Zhongmo Security Equipment Co ltd
Filing date: 2023-12-11
Publication date: 2024-07-12
Anticipated expiration: 2033-12-11

Abstract

The utility model discloses a waterproof structure and an infrared sensing device applying the waterproof structure, the waterproof structure is applied to a control board, the control board comprises a board body and an infrared sensor arranged on the board body, the board body is provided with a plurality of through holes penetrating through two opposite surfaces of the board body, the through holes are arranged at intervals along the circumferential direction of the infrared sensor, a base of the waterproof structure comprises a base body and a plurality of connecting protrusions connected with the base body, the base body is attached to the board surface of the board body at one side far away from the infrared sensor, one connecting protrusion extends into one side of the infrared sensor from one through hole, the connecting protrusion is provided with external threads, a light-transmitting cover is provided with internal threads, the light-transmitting cover is connected with the connecting protrusion in a threaded manner and forms a sealing cavity in a surrounding manner with the board body and the base body, and the infrared sensor is accommodated in the sealing cavity. The waterproof structure can greatly improve the sealing effect on the infrared sensor, thereby improving the waterproof performance of the infrared sensor.

Description

Waterproof construction and infrared induction device

Technical Field

The utility model relates to the technical field of security equipment, in particular to a waterproof structure and an infrared sensing device.

Background

The infrared sensor is an induction device based on infrared induction technology, realizes an automatic induction function by sensing infrared heat emitted from the outside, and can send information to one side of a controller to rapidly open various electrical equipment such as a lamp, an automatic door, an anti-theft alarm and the like.

In the related art, the infrared sensing device comprises a shell, a light-transmitting cover and an infrared sensor, wherein the infrared sensor is arranged in the shell, and the light-transmitting cover covers the outer side of the infrared sensor. In actual use, due to production or assembly reasons, gaps exist between the light-transmitting cover and the shell inevitably, so that the sealing performance of the infrared sensing device is poor, the waterproof and dustproof effects are poor, and the service life of the infrared sensing device is influenced.

Disclosure of utility model

The utility model mainly aims to provide a waterproof structure which aims to improve the sealing effect on an infrared sensor and further improve the waterproof performance of the infrared sensor.

In order to achieve the above object, the waterproof structure provided by the present utility model is applied to a control board, the control board includes a board body and an infrared sensor disposed on the board body, the board body is provided with a plurality of through holes penetrating through two opposite surfaces thereof, and the plurality of through holes are disposed at intervals along a circumferential direction of the infrared sensor, the waterproof structure includes:

The base comprises a base body and a plurality of connecting protrusions connected to the base body, the base body is attached to the plate surface of one side, away from the infrared sensor, of the plate body, one connecting protrusion extends from one penetrating hole towards one side of the infrared sensor, and the connecting protrusion is provided with external threads; and

The light-transmitting cover is provided with internal threads, the light-transmitting cover is in threaded connection with the connecting protrusion, the light-transmitting cover and the plate body are enclosed to form a sealing cavity, and the infrared inductor is accommodated in the sealing cavity.

Optionally, the printing opacity lid includes lid and first sealing washer, the lid with connect protruding threaded connection, first sealing washer is encircleed and is located connect protruding with infrared inductor's the outside, and elasticity butt in the lid with the plate body.

Optionally, the surface of the cover body facing one side of the plate body is concavely provided with an annular mounting groove, and the first sealing ring is embedded in the annular mounting groove.

Optionally, the cross section of the annular mounting groove is arranged in a flaring shape towards one side of the plate body.

Optionally, the base includes a second sealing ring, the second sealing ring is disposed around the outer sides of the plurality of connection protrusions, and elastically abuts against the base and the plate.

Optionally, the base further includes a heat dissipation pad, the base body is formed with a heat dissipation groove, and the heat dissipation pad is accommodated in the heat dissipation groove and is attached to the board surface of the board body.

The utility model also provides an infrared sensing device which comprises a shell, a control panel and a waterproof structure, wherein the waterproof structure is the waterproof structure;

The shell is provided with an installation cavity and a yielding hole communicated with the installation cavity;

The control board comprises a board body and an infrared inductor arranged in the board body, wherein the board body is arranged in the installation cavity and is provided with a plurality of through holes penetrating through two opposite surfaces of the board body, and the through holes are arranged at intervals along the circumferential direction of the infrared inductor;

The waterproof structure comprises a base and a light-transmitting cover, wherein the base comprises a base body and a plurality of connecting protrusions connected with the base body, the base body is attached to the plate surface of one side of the plate body, which is away from the infrared inductor, the connecting protrusions extend into one side of the infrared inductor from the through holes, the connecting protrusions are provided with external threads, the light-transmitting cover is in threaded connection with the connecting protrusions, a sealing cavity is formed by encircling the plate body and the base body, the infrared inductor is accommodated in the sealing cavity, and the light-transmitting cover extends out of the yielding holes.

Optionally, the shell includes casing, sealed pad and mounting panel, the casing is formed with draw-in groove and intercommunication the draw-in groove diapire the hole of stepping down, sealed pad joint in the notch of draw-in groove, and with the casing encloses and closes and form the installation cavity, the mounting panel can dismantle connect in the casing, and support in the surface of sealed pad.

Optionally, the casing further includes a third sealing ring, and the third sealing ring is sleeved on the outer side of the light-transmitting cover and elastically abuts against the hole side wall of the abdicating hole.

Optionally, the shell further comprises a fourth sealing ring and a decorative plate, the fourth sealing ring is arranged on the outer side of the third sealing ring in a surrounding mode, the decorative plate is connected to the shell, and the fourth sealing ring is pressed on the surface of the shell.

The utility model relates to a waterproof structure applied to a control board, which comprises a board body and an infrared inductor arranged on the board body, wherein the board body is provided with a plurality of through holes penetrating through two opposite surfaces of the board body, the through holes are arranged at intervals along the circumferential direction of the infrared inductor, a base of the waterproof structure comprises a base body and a plurality of connecting protrusions connected with the base body, the base body is attached to the board surface of one side of the board body, which is far away from the infrared inductor, a connecting protrusion extends from one side of the through hole towards the infrared inductor, the connecting protrusion is provided with external threads, a light-transmitting cover is provided with internal threads, the light-transmitting cover is connected with the connecting protrusion in a threaded manner and forms a sealing cavity together with the board body and the base body, and the infrared inductor is accommodated in the sealing cavity. According to the utility model, the light-transmitting cover and the base body are respectively abutted against two opposite plate surfaces of the plate body and are enclosed with the plate surfaces to form a sealing cavity, and the sealing cavity seals the body of the infrared sensor and the welding legs thereof. Meanwhile, the light-transmitting cover and the base body are connected through threads, so that the light-transmitting cover and the base body are propped against the plate body and the acting force is larger, and the sealing cavity has good sealing performance.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an infrared sensing device according to an embodiment of the present utility model;

Fig. 2 is a structural exploded view of the infrared sensing device shown in fig. 1;

FIG. 3 is a top view of the infrared sensing device shown in FIG. 1;

fig. 4 is a cross-sectional view of the infrared sensing device shown in fig. 3 taken along A-A.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 1 to 4, the present utility model proposes a waterproof structure (not shown).

In the embodiment of the utility model, the waterproof structure is applied to a control board 200, the control board 200 comprises a board body 210 and an infrared sensor 220 arranged on the board body 210, specifically, the board body 210 of the control board 200 is a printed circuit board (PCB Printed Circuit Board), the infrared sensor 220 is connected to the board surface of the board body 210 through a soldering process, a plurality of electronic elements are welded on the surface of the board body 210, and the electronic elements and the infrared sensor 220 form the control board 200 together. The plate body 210 is formed with a plurality of through holes 210a penetrating opposite surfaces thereof by machining, and the plurality of through holes 210a are disposed at intervals along the circumferential direction of the infrared sensor 220.

The waterproof structure comprises a base 110, the base 110 comprises a base 111 and a plurality of connecting protrusions 112 connected to the base 111, the base 111 is attached to the plate surface of the plate 210 at the side away from the infrared sensor 220, one connecting protrusion 112 extends from one through hole 210a towards the infrared sensor 220, and the connecting protrusion 112 is provided with external threads; the light-transmitting cover 120 is provided with an internal thread, the light-transmitting cover 120 is in threaded connection with the connection protrusion 112, and encloses with the plate body 210 and the base body 111 to form a sealed cavity 100a, and the infrared sensor 220 is accommodated in the sealed cavity 100 a.

In this embodiment, the base 111 and the plurality of connection protrusions 112 are integrally formed from a plastic material, the base 111 is cylindrical, the connection protrusions 112 extend in a circular arc shape, the base 111 is located on the lower plate surface of the plate 210, the connection protrusions 112 extend upward from the through holes 210a, part of the connection protrusions are located on one side of the infrared sensor 220, the track lines of the plurality of connection protrusions 112 extend in a circular shape, and external threads are formed on the outer sides of the connection protrusions 112.

The light-transmitting cover 120 is integrally formed of a transparent plastic material, and has an internal thread formed on an inner side thereof, and the light-transmitting cover 120 is fixedly coupled with the external thread of the coupling protrusion 112 through the internal thread. In the specific assembly, the light-transmitting cover 120 is located above the plate 210, the base 111 is located below the plate 210, and the three are enclosed to form the sealed cavity 100a, and the infrared sensor 220 is accommodated in the sealed cavity 100 a.

In the present application, the transparent cover 120 and the base 111 are respectively abutted against two opposite plate surfaces of the plate 210, and enclose with the two plate surfaces to form a sealing cavity 100a, and the sealing cavity 100a seals the body of the infrared sensor 220 and the soldering leg thereof therein. Meanwhile, the light-transmitting cover 120 and the base 111 are connected through threads, so that the light-transmitting cover 120 and the base 111 are propped against the plate 210 and have larger acting force, so that the sealing cavity 100a has better sealing performance, and the waterproof structure can greatly improve the sealing effect on the infrared sensor 220, thereby improving the waterproof performance.

Further, in the present embodiment, the light-transmitting cover 120 includes a cover body 121 and a first sealing ring 122, specifically, the cover body 121 is screwed with the connecting protrusion 112, the surface of the surface facing the plate body 210 is recessed upwards, an annular mounting groove 121a is formed, the first sealing ring 122 is made of silica gel or rubber material, and the first sealing ring 122 is elastically embedded in the annular mounting groove 121 a. After the actual assembly, the cover 121 is rotationally screwed to the connection protrusion 112, and the first sealing ring 122 elastically abuts against the plate surface of the plate 210 and is located outside the connection protrusion 112 and the infrared sensor 220. According to the application, the sealing performance of the sealing cavity 100a can be further improved by arranging the first sealing ring 122, so that the waterproof effect of the waterproof structure is improved.

Referring again to fig. 4, in the present embodiment, the annular mounting groove 121a has a flared cross section toward the plate 210 side. That is, the groove side wall of the annular mounting groove 121a is inclined toward the inside of the groove bottom wall so that its cross section takes a trapezoidal shape. Thus, after the first sealing ring 122 elastically abuts against the plate surface of the plate body 210, the groove side wall of the annular mounting groove 121a can form an extrusion effect on the first sealing ring 122 in the horizontal and vertical directions, so that the connection between the first sealing ring 122 and the plate body 210 is more compact, and the waterproof effect of the waterproof structure is further improved.

Further, in the present embodiment, the base 110 includes a second sealing ring 113, and the second sealing ring 113 is annularly disposed outside the plurality of connecting protrusions 112 and elastically abuts against the base 111 and the plate 210. The material and the installation manner of the second sealing ring 113 can refer to the first sealing ring 122, and will not be described herein in detail. In the application, by arranging the second sealing ring 113, water can be prevented from entering the sealing cavity 100a from the gap between the base 111 and the plate 210, thereby further improving the waterproof effect of the waterproof structure.

In this embodiment, the base 110 further includes a heat dissipation pad 114, wherein the base 111 is formed with a heat dissipation groove 111a, and the heat dissipation pad 114 is accommodated in the heat dissipation groove 111a and is attached to the board surface of the board 210. By providing the heat dissipation pad 114, the temperature of the infrared sensor 220 can be reduced in the sealed cavity 100a, so that the service life of the infrared sensor 220 can be further prolonged, and the use stability of the infrared sensing device 1 can be improved.

The utility model also provides an infrared induction device 1, and the infrared induction device 1 comprises a housing 300, a control board 200 and a waterproof structure, wherein the specific structure of the waterproof structure refers to the above embodiment, and as the infrared induction device 1 adopts all the technical schemes of all the embodiments, at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.

Specifically, the housing 300 includes a casing 310, a sealing gasket 320 and a mounting plate 330, where the casing 310 may be integrally formed by plastic material through an injection molding process, or metal sheet metal material is mechanically formed, and the casing 310 is formed with a clamping groove (not shown) and a relief hole 300b communicating with the bottom wall of the clamping groove. The sealing gasket 320 is partially clamped in the notch of the clamping groove and is enclosed with the shell 310 to form an installation cavity 300a, a buckle is arranged on the side wall surface of the shell 310, the edge of the installation plate 330 is clamped in the buckle and is detachably connected with the shell 310, and when the installation plate 330 is connected with the shell 310, the plate surface of the installation plate 330 abuts against the surface of the sealing gasket 320, so that the sealing gasket 320 is firmly pressed in the notch of the clamping groove. The plate 210 is fixedly mounted in the mounting cavity 300a by a screw, a part of the light-transmitting cover 120 of the waterproof structure extends out of the relief hole 300b, and the base 110 is abutted against the sealing pad 320. The shell 300 of the application has simple structure and convenient disassembly and assembly.

Further, the housing 300 further includes a third sealing ring 340, and the third sealing ring 340 is sleeved on the outer side of the light-transmitting cover 120 and elastically abuts against the hole sidewall of the abdication hole 300 b. By arranging the third sealing ring 340, water can be prevented from entering the installation cavity 300a through the gap between the light-transmitting cover 120 and the side wall surface of the abdication hole 300b, so that the waterproof effect of the infrared sensing device 1 is better.

Referring to fig. 2 again, in the present embodiment, the housing 300 further includes a fourth sealing ring 350 and a decorative plate 360, wherein the fourth sealing ring 350 and the decorative plate 360 are disposed around the outer side of the third sealing ring 340, the decorative plate 360 is adhered to the upper surface of the housing 310 by glue, and the decorative plate 360 presses the fourth sealing ring 350 to the surface of the housing 310. By arranging the decorative plate 360, the induction area and the induction state of the infrared sensor 220 can be identified on one hand, so that the use of a user is facilitated. On the other hand, the decorative plate 360 can be used for installing and fixing the fourth sealing ring 350, so that the infrared sensing device 1 has fewer structural components, is convenient to produce and assemble, and has better waterproof performance.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. The utility model provides a waterproof construction, is applied to the control panel, the control panel include the plate body with set up in the infrared inductor of plate body, a plurality of through holes that run through its relative two surfaces are seted up to the plate body, a plurality of the through hole is followed infrared inductor's circumference interval sets up, a serial communication port, waterproof construction includes:

2. The waterproof structure of claim 1, wherein the light-transmitting cover comprises a cover body and a first sealing ring, the cover body is in threaded connection with the connecting protrusion, and the first sealing ring is arranged on the outer sides of the connecting protrusion and the infrared sensor in a surrounding manner and elastically abuts against the cover body and the plate body.

3. The waterproof structure of claim 2, wherein the surface of the cover facing the side of the plate body is concavely provided with an annular mounting groove, and the first sealing ring is embedded in the annular mounting groove.

4. A waterproof structure according to claim 3, wherein the cross section of the annular mounting groove is provided in a flaring shape toward one side of the plate body.

5. The waterproof structure of claim 2, wherein the base includes a second sealing ring, and the second sealing ring is disposed around the outer sides of the plurality of connection protrusions and elastically abuts against the base and the plate.

6. The waterproof structure of claim 2, wherein the base further comprises a heat dissipation pad, the base body is formed with a heat dissipation groove, and the heat dissipation pad is accommodated in the heat dissipation groove and is attached to the plate surface of the plate body.

7. An infrared sensing device, characterized by comprising a housing, a control board, and a waterproof structure as claimed in any one of claims 1 to 6;

8. The infrared sensing device according to claim 7, wherein the housing comprises a shell, a sealing gasket and a mounting plate, the shell is provided with a clamping groove and the yielding hole communicated with the bottom wall of the clamping groove, the sealing gasket is clamped with the notch of the clamping groove and surrounds the shell to form the mounting cavity, and the mounting plate is detachably connected to the shell and abuts against the surface of the sealing gasket.

9. The infrared sensing device of claim 8, wherein the housing further comprises a third sealing ring sleeved on the outer side of the transparent cover and elastically abutted against the hole side wall of the abdication hole.

10. The infrared sensing device of claim 9, wherein the housing further comprises a fourth sealing ring and a decorative plate, the fourth sealing ring is arranged on the outer side of the third sealing ring in a surrounding manner, and the decorative plate is connected to the shell and presses the fourth sealing ring on the surface of the shell.