CN110672200B

CN110672200B - Bright motion detector

Info

Publication number: CN110672200B
Application number: CN201910665128.2A
Authority: CN
Inventors: 周明杰; 胡印
Original assignee: Oceans King Lighting Science and Technology Co Ltd; Oceans King Dongguan Lighting Technology Co Ltd; Shenzhen Oceans King Lighting Engineering Co Ltd
Current assignee: Oceans King Lighting Science and Technology Co Ltd; Oceans King Dongguan Lighting Technology Co Ltd; Shenzhen Oceans King Lighting Engineering Co Ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2022-02-08
Anticipated expiration: 2039-07-23
Also published as: CN110672200A

Abstract

The invention belongs to the technical field of detectors, and discloses a bright motion detector which comprises a main shell, an upper shell and a transparent cover, wherein the main shell, the upper shell and the transparent cover are sequentially sleeved from outside to inside, the main shell is provided with a first inner wall and a first outer wall, the upper shell is provided with a second inner wall and a second outer wall, and the transparent cover is provided with a third inner wall and a third outer wall. According to the bright detector, the first thread explosion-proof structure is formed between the first inner wall and the second outer wall, and the second thread explosion-proof structure is formed between the second inner wall and the third outer wall, so that the bright detector has explosion-proof performance in a thread explosion-proof mode; in addition, through set up light fortune induction system, motion induction system and with light fortune induction system and motion induction system signal connection's communication device in the airtight explosion-proof intracavity that encloses between first inner wall, second inner wall and the third inner wall to carry out signal connection through transmitting antenna and communication device, with this when can carrying out illumination intensity response and motion object body and feel, still can make things convenient for the user to carry out remote control at the background.

Description

Bright motion detector

Technical Field

The invention relates to the technical field of detectors, in particular to a bright motion detector.

Background

The brightness detector is a detector which can sense the brightness of light and convert the light into a usable output signal, and particularly, the brightness detector can control lighting equipment and the like according to the brightness of external environment light so as to prevent the interference of instantaneous change of the light. A motion detector refers to a device capable of detecting motion of a person or object. The bright motion detector is a detector formed by combining a brightness detector and a motion detector, can finish the detection of the brightness of the environment and the motion detection of a human body or an object within an effective detection range, and can be linked with other equipment in a detection area, such as lamplight, an air conditioner, an automatic curtain, an alarm and the like.

At present, the bright detector is mostly suitable for indoor non-explosion-proof places such as office buildings, houses, warehouses, factories, hotels, roadway lamps and the like, and understandably, the bright detector generally does not have explosion-proof performance. Moreover, the existing bright detector often has the problems that the existing bright detector cannot be controlled remotely or at any time and any place, cannot be matched with other modules for use, is inconvenient to install and maintain and the like. However, in the industries of petroleum and petrochemical industry and the like, in order to ensure the intelligent control requirement, it is necessary to upgrade and reform the relevant controllers and the like in use.

Disclosure of Invention

In view of this, the present invention provides a bright motion detector, which is used to solve the technical problem that the existing bright motion detector does not have an explosion-proof performance and cannot assist remote control.

In order to solve the technical problems, the invention adopts the technical scheme that: the bright detector comprises a main shell, an upper shell and a transparent cover, wherein the main shell, the upper shell and the transparent cover are sequentially sleeved from outside to inside;

a first thread explosion-proof structure is formed between the first inner wall and the second outer wall, a second thread explosion-proof structure is formed between the second inner wall and the third outer wall, and a closed explosion-proof cavity is defined by the first inner wall, the second inner wall and the third inner wall;

the bright motion detector also comprises a transmitting antenna, and a circuit board assembly, a communication device, a brightness sensing device, a motion sensing device and a control assembly which are arranged in the explosion-proof cavity; the transmitting antenna is in signal connection with the communication device, the circuit board assembly is provided with the communication device, the brightness induction device, the motion induction device and the control assembly, the brightness induction device and the motion induction device are in signal connection with the communication device, and the brightness induction device and the motion induction device are controlled by the control assembly.

In one embodiment, the main shell comprises a joint shell, the upper shell comprises a first explosion-proof shell, and the first thread explosion-proof structure comprises first threads arranged on a first inner wall of the joint shell and second threads arranged on a second outer wall of the first explosion-proof shell; and a threaded connection structure is formed between the first thread and the second thread, and the matching surface of the first thread and the second thread is formed into a first explosion-proof joint surface.

In one embodiment, in the height direction of the bright detector, the length of the first flameproof joint surface is greater than or equal to 14 mm.

In one embodiment, the bright detector further comprises a sealing element, the main shell further comprises a first sealing shell connected with the top end of the joint shell, the upper shell further comprises a second sealing shell connected with the top end of the first explosion-proof shell, a radial sealing cavity is formed between a first inner wall of the first sealing shell and a second outer wall of the second sealing shell, and the sealing element is arranged in the sealing cavity to enhance the sealing performance of the first thread explosion-proof structure.

In one embodiment, outside the seal chamber, a beveled portion is formed on a first inner wall of the first seal housing for preventing the seal from crushing and wearing against a second outer wall of the second seal housing before fitting into the seal chamber.

In one embodiment, the bright detector further comprises a fastening element, the first sealing shell is radially provided with a fixing hole, and the fastening element is inserted into the fixing hole and connected to the second sealing shell to prevent the sealing element from loosening from the sealing cavity.

In one embodiment, the upper shell further comprises a second explosion-proof shell, and the second thread explosion-proof structure comprises a third thread arranged on a second inner wall of the second explosion-proof shell and a fourth thread arranged on a third outer wall of the transparent cover; and a threaded connection structure is formed between the third thread and the fourth thread, and a matching surface between the third thread and the fourth thread is formed into a second explosion-proof joint surface.

In one embodiment, a joint gap is formed between the second inner wall of the second explosion-proof housing and the third outer wall of the transparent cover; in the height direction of the bright detector, the joint gap is positioned on the inner side of the second thread explosion-proof structure; the joint gap is filled with an organic compound for sealing, and a seal joint surface is formed.

In one embodiment, the bright detector further comprises a fixing pressing piece, the fixing pressing piece is arranged at a position corresponding to the joint gap and located in the explosion-proof cavity, a part of the fixing pressing piece abuts against the second inner wall of the second explosion-proof shell, and a part of the fixing pressing piece abuts against the bottom end of the transparent cover.

In one embodiment, the first outer wall of the main shell is provided with a boss protruding outwards, and the boss is provided with a first connecting hole communicated with the explosion-proof cavity; the bright motion detector further comprises a pressing assembly which is inserted into the first connecting hole and can ensure the sealing performance of the explosion-proof cavity, the pressing assembly is provided with a second connecting hole communicated with the first connecting hole, and the transmitting antenna can be sequentially inserted into the second connecting hole and the first connecting hole through explosion-proof connecting wires with different wire diameters so as to be in signal connection with the communication device.

The bright motion detector provided by the embodiment of the invention has the following beneficial effects:

the bright detector is sequentially sleeved from outside to inside through the main shell, the upper shell and the transparent cover, a first thread explosion-proof structure is formed between the first inner wall of the main shell and the second outer wall of the upper shell, and a second thread explosion-proof structure is formed between the second inner wall of the upper shell and the third outer wall of the transparent cover, so that the bright detector has explosion-proof performance through the thread explosion-proof mode; in addition, a light and transport sensing device, a motion sensing device and a communication device in signal connection with the light and transport sensing device and the motion sensing device are arranged in a closed explosion-proof cavity defined by the first inner wall of the main shell, the second inner wall of the upper shell and the third inner wall of the transparent cover, and the communication device is in signal connection with the transmission antenna, so that when illumination intensity sensing and motion object sensing can be carried out, a user can conveniently carry out remote control at the background.

Drawings

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

Wherein:

FIG. 1 is a schematic perspective view of a luminance detector according to an embodiment of the present invention;

FIG. 2 is a front view of the bright detector of FIG. 1;

FIG. 3 is an exploded view of the light detector of FIG. 1 with the transmitting antenna and the explosion-proof connecting wires removed;

FIG. 4 is a cross-sectional view of the illumination detector of FIG. 2 taken along section A-A;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a partial enlarged view of the portion B in FIG. 4;

fig. 7 is a top view of the bright detector of fig. 2.

The reference numbers in the drawings are as follows:

10. a bright motion detector;

100. a main housing; 110. a joint housing; 111. a first thread; 120. a first thread explosion-proof structure; 130. a first sealed case; 131. a beveled portion; 132. a fixing hole; 140. a first inner wall; 150. a first outer wall; 151. a boss; 1511. a first connection hole; 160. externally grounding; 170. an internal ground; 180. a mounting frame;

200. an upper shell; 210. a first explosion-proof housing; 211. a second thread; 220. a second sealed housing; 230. sealing the cavity; 240. a second explosion-proof housing; 241. a third thread; 250. an engagement gap; 260. a second inner wall; 270. a second outer wall; 280. two-dimensional codes;

300. a transparent cover; 310. a second thread explosion-proof structure; 320. a fourth thread; 340. a third inner wall; 350. a third outer wall;

400. an explosion-proof cavity; 500. a seal member; 600. a fastener; 700. fixing the pressing piece;

800. a compression assembly; 810. a compression nut; 811. a second connection hole; 820. a filler region;

900. a transmitting antenna; 910. an explosion-proof connecting wire;

1000. a circuit board assembly; 1100. a first circuit board; 1200. a second circuit board; 1300. a metal post; 1400. a pan head combination screw; 1500. and (4) insulating paper.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "fixed to" or "mounted to" or "provided on" or "connected to" another element, it can be directly or indirectly located on the other element. For example, 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 "length," "width," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or position based on the orientation or position shown in the drawings, are for convenience of description only, and are not to be construed as limiting the present disclosure.

Furthermore, the terms "first" and "second" are used for convenience of description only and are not to be construed as indicating or implying relative importance or implying any number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise. In general, the specific meanings of the above terms will be understood by those of ordinary skill in the art as appropriate.

The implementation of a light detector provided by the present invention is described in detail below with reference to the accompanying drawings.

It should be noted that the bright motion detector 10 may have two functions of brightness detection and motion detection at the same time, and in practical applications, a user may use the two functions at the same time or select one of the two functions according to actual needs. Specifically, in the embodiment of the present invention, the bright motion detector 10 mainly uses a working lighting fixture as a connection control object, is mainly applied in the petrochemical industry, and utilizes a reliable communication technology and various advanced detection devices to simultaneously implement an object movement detection function and an illumination collection function, and cooperates with a single-lamp controller to implement higher-performance energy-saving control, so as to reduce enterprise energy consumption and maintenance cost, thereby creating a higher-safety, energy-saving, efficient and comfortable working environment. Of course, the bright detector 10 may be used in other suitable industries in practice.

As shown in fig. 1 to 4, the illumination detector 10 includes a main housing 100, an upper housing 200, and a transparent cover 300, which are sequentially coupled from the outside to the inside. Specifically, the upper case 200 is sleeved on the outer side of the transparent cover 300, the main case 100 is sleeved on the outer side of the upper case 200, and in the height direction of the bright detector 10, the top end of the transparent cover 300 protrudes out of the upper case 200, and the top end of the upper case 200 protrudes out of the main case 100. In this embodiment, the main housing 100 and the upper housing 200 are made of metal materials, and may be specifically formed by die-casting aluminum materials (i.e., ADC12 materials) through dedicated equipment, so as to meet the requirements of standard materials and improve the explosion-proof performance of the bright detector 10. In addition, the transparent cover 300 may be injection molded using a polycarbonate material (i.e., a PC material). It should be noted that, as a whole, the housing of the bright detector 10 is circular in appearance.

As shown in fig. 2 to 4, the main casing 100 generally has a first inner wall 140 and a first outer wall 150, the upper casing 200 generally has a second inner wall 260 and a second outer wall 270, and the transparent cover 300 generally has a third inner wall 340 and a third outer wall 350. In this embodiment, in order to make the bright detector 10 have an explosion-proof performance and realize the sleeving connection between the main casing 100, the upper casing 200 and the transparent cover 300, a first thread explosion-proof structure 120 is formed between the first inner wall 140 of the main casing 100 and the second outer wall 270 of the upper casing 200, correspondingly, a second thread explosion-proof structure 310 is formed between the second inner wall 260 of the upper casing 200 and the third outer wall 350 of the transparent cover 300, and a closed explosion-proof cavity 400 is defined between the first inner wall 140 of the main casing 100, the second inner wall 260 of the upper casing 200 and the third inner wall 340 of the transparent cover 300.

In the present embodiment, as shown in fig. 1 to 4, the bright detector 10 further includes a transmitting antenna 900, a circuit board assembly 1000, a communication device (not shown), a brightness sensing device (not shown), a motion sensing device (not shown), and a control assembly (not shown). Wherein the transmitting antenna 900 is independent from the main housing 100 and is located outside the main housing 100. The circuit board assembly 1000, the communication device, the brightness sensing device, the motion sensing device and the control assembly are disposed in the explosion-proof chamber 400.

In the present embodiment, the transmitting antenna 900 is connected to a communication device for implementing remote data transmission. Specifically, in the embodiment, the communication device may be a wireless transceiver module (specifically, an RF433 module), and correspondingly, the transmitting antenna 900 may be an RF433 antenna. In addition, communication device, luminance induction system, motion-sensing device and control assembly set up on circuit board subassembly 1000, luminance induction system and motion-sensing device signal connection communication device, and luminance induction system and motion-sensing device are controlled by control assembly, can understand ground from this, through the supporting use of communication device and other subassemblies (such as explosion-proof gateway controller, explosion-proof single lamp controller, explosion-proof return circuit controller etc.) to carry out timely remote connection, can reach the long-range effect of controlling lamps and lanterns etc. of workplace.

It should be noted that, for easy and smooth communication, the communication device and other components use RF433 for communication during signal transmission, and use the same communication protocol. It should be noted that, in this embodiment, the light detector 10 may perform the sensing of the moving object and the sensing of the illumination intensity change at the same time, or may select one of the functions of the sensing of the moving object and the sensing of the illumination intensity change, which may be determined according to actual needs.

Specifically, in this embodiment, as shown in fig. 4, the circuit board assembly 1000 includes a first circuit board 1100 and a second circuit board 1200, wherein, in the explosion-proof chamber 400, the first circuit board 1100 and the second circuit board 1200 are connected by a metal column 1300, and the metal column 1300 and the corresponding circuit board are fixed by a pan head combination screw 1400, and are fixedly connected with the main casing 100 by a fixing member such as a screw, and in addition, an insulating paper 1500 is disposed on the first inner wall 140 of the main casing 100 to insulate the corresponding circuit board from the main casing 100, so as to satisfy the surge (i.e., transient overvoltage exceeding the normal operating voltage) and insulation requirements specified in GB/T17626.5-2008. In addition, in this embodiment, the communication module is disposed on the second circuit board 1200, and in order to improve the performance of the bright motion detector 10, the second circuit board 1200 meets the requirements of transmission and radiation of GB/T17799.4-2012 when designing the arrangement of components.

It should be noted that, in this embodiment, in the explosion-proof chamber 400, an indicator lamp (such as an LED lamp) is further disposed on the first circuit board 1100 or the second circuit board 1200, and in an actual use process, people can observe the condition of the indicator lamp inside the bright detector 10 through the transparent cover 300, so as to know the working state of the bright detector 10 through the on-off state of the indicator lamp, for example, when the indicator lamp is observed to flash regularly, it indicates that the bright detector 10 is in the working state; correspondingly, if the indicator light is in a normally off or normally on state, it indicates that the bright detector 10 is in an abnormal state.

It should be noted that, in the present embodiment, as shown in fig. 1 and fig. 2, a mounting bracket 180, specifically two symmetrically disposed mounting brackets 180, is protruded outward from the first outer wall 150 of the main casing 100, so that the bright detector 10 can be fixedly mounted by two bolts, which obviously facilitates the mounting and dismounting of the bright detector 10. In addition, because the bright detector 10 can be remotely controlled through programming, signal transmission, etc., the bright detector 10 can be directly remotely programmed after being installed in the field without disassembling the bright detector 10.

In one embodiment, as shown in fig. 4 and 5, the main casing 100 includes a joint casing 110, and the upper casing 200 includes a first explosion-proof casing 210, wherein the first threaded explosion-proof structure 120 formed between the main casing 100 and the upper casing 200 includes a first thread 111 opened on a first inner wall 140 of the joint casing 110 of the main casing 100, and a second thread 211 opened on a second outer wall 270 of the first explosion-proof casing 210 of the upper casing 200. Specifically, a threaded connection structure is formed between the first thread 111 and the second thread 211, and the matching surfaces of the first thread 111 and the second thread 211 are formed as a first explosion-proof joint surface. In order to improve the explosion-proof performance and the connection stability of the bright detector 10, the length of the first explosion-proof joint surface is greater than or equal to 14mm in the height direction of the bright detector 10.

It can be understood that, the main shell 100 and the upper shell 200 are sleeved at the first flameproof joint surface, and the flameproof cavity 400 is sealed from the external environment. More specifically, the first and

second threads

111, 211 are both coarse threads and both meet standard thread requirements, wherein the gauge of each thread may preferably be M122 x 2-6H/6 g. In addition, the first flameproof joint surface meets the requirements of a threaded flameproof joint surface specified in GB 3836.2-2010.

In one embodiment, as shown in fig. 3 to 5, the bright detector 10 further includes a sealing member 500, the main casing 100 further includes a first sealing case 130 connected to the top end of the coupling case 110, and the upper casing 200 further includes a second sealing case 220 connected to the top end of the first explosion-proof case 210, it can be understood that the first sealing case 130 of the main casing 100 and the coupling case 110 are sequentially connected from top to bottom in the height direction of the bright detector 10, and similarly, the second sealing case 220 of the upper casing 200 and the first explosion-proof case 210 are sequentially connected from top to bottom.

As shown in fig. 3 to fig. 5, a radial seal cavity 230 is formed between the first inner wall 140 of the first seal shell 130 of the main shell 100 and the second outer wall 270 of the second seal shell 220 of the upper shell 200, wherein the seal 500 is disposed in the seal cavity 230, so as to enhance the sealing performance of the first threaded flameproof structure 120, and further improve the explosion-proof performance of the bright detector 10, for example, the protection performance of the bright detector 10 can reach above IP 65.

In this embodiment, the sealing member 500 is preferably an O-ring. In addition, the sealing member 500 is located outside the first flameproof bonding surface, in other words, the first flameproof bonding surface is closer to the flameproof chamber 400 than the sealing member 500.

In one embodiment, as shown in fig. 3 to 5, an inclined portion 131 is formed on the first inner wall 140 of the first seal housing 130 of the main housing 100 outside the seal chamber 230, thereby preventing the seal 500 from being crushed and worn away from the second outer wall 270 of the second seal housing 220 before the seal 500 is fitted to the seal chamber 230, which results in a failure of the seal protection after the seal 500 is mounted to the seal chamber 230, and thus makes it difficult to ensure the explosion-proof performance of the bright detector 10.

In one embodiment, as shown in fig. 3 to 5, the bright detector 10 further includes a fastening member 600, and the first sealing shell 130 of the main shell 100 is radially opened with a fixing hole 132, wherein the fastening member 600 is inserted into the fixing hole 132, and the fastening member 600 is connected to the second sealing shell 220, thereby preventing the sealing member 500 from being released from the sealing cavity 230. Specifically, the fastener 600 may be a socket head cap set screw.

In one embodiment, as shown in fig. 4 and 6, the upper case 200 further comprises a second explosion-proof case 240, wherein the second threaded explosion-proof structure 310 formed between the upper case 200 and the transparent cover 300 comprises a third thread 241 opened on the second inner wall 260 of the second explosion-proof case 240 and a fourth thread 320 opened on the third outer wall 350 of the transparent cover 300. Specifically, a threaded connection structure is formed between the third thread 241 and the fourth thread 320, and a mating surface between the third thread 241 and the fourth thread 320 is formed as a second flameproof joint surface.

It can be understood that, a sleeve joint is realized between the upper shell 200 and the transparent cover 300 at the second flameproof joint surface, and further, the isolation and sealing of the flameproof cavity 400 from the external environment are realized. More specifically, the second explosion proof case 240, the second sealing case 220 and the first explosion proof case 210 of the upper case 200 are sequentially connected. The third thread 241 and the fourth thread 320 are both coarse threads and both meet standard thread requirements. Wherein the specification of each thread may preferably be M68 x 1.5. In addition, the second flameproof joint surface meets the requirements of a pouring joint surface specified in GB 3836.2-2010.

In one embodiment, as shown in fig. 4 and 6, an engagement gap 250 is formed between the second inner wall 260 of the second explosion-proof case 240 of the upper case 200 and the third outer wall 350 of the transparent cover 300. In the height direction of the bright detector 10, the joint gap 250 is located inside the second threaded flameproof structure 310, in other words, the joint gap 250 is closer to the flameproof chamber 400 than the second threaded flameproof structure 310. In order to further improve the explosion-proof performance of the bright detector 10, the joint gap 250 is filled with an organic compound for sealing, and a sealing joint surface is formed thereby. That is, the transparent cover 300 and the upper case 200 are sealed by an organic compound.

Specifically, in this embodiment, the organic compound may be a silica gel compound, so as to effectively remove air mixed into the gel during mixing, thereby improving the sealing performance of the sealing joint surface. More specifically, the organic compound may be dropped into the bonding gap 250 by a pin-hole dispenser. As can be understood, because the joint gap 250 is located inside the second threaded flameproof structure 310, the second threaded flameproof structure 310 can effectively prevent organic compounds encapsulated in the joint gap 250 from flowing out and affecting the appearance of the bright detector 10.

In one embodiment, as shown in fig. 4 and 6, the bright detector 10 further includes a fixing pressing member 700, the fixing pressing member 700 is disposed at a position corresponding to the joint gap 250 and located in the explosion-proof chamber 400, and a portion of the fixing pressing member 700 presses against the second inner wall 260 of the second explosion-proof housing 240 and a portion presses against the bottom end of the transparent cover 300, so that, in the explosion-proof chamber 400, the fixing pressing member 700 presses against the transparent cover 300 to fix the position of the transparent cover 300, that is, fix the transparent cover 300 by force, thereby ensuring that no relative displacement occurs between the transparent cover 300 and the upper housing 200, and further avoiding the organic compound colloid in the joint gap 250 from being stressed, thereby better ensuring the sealing performance.

In one embodiment, as shown in fig. 1, 4 and 7, in order to realize the signal connection between the transmitting antenna 900 and the communication device, a boss 151 is protruded from the first outer wall 150 of the main housing 100, and the boss 151 is provided with a first connection hole 1511 communicating with the explosion-proof chamber 400. The bright detector 10 further comprises a compression assembly 800, wherein the compression assembly 800 is inserted into the first connection hole 1511 and can ensure the sealing performance of the explosion proof chamber 400. In addition, the pressing member 800 is provided with a second connection hole 811, wherein the second connection hole 811 is communicated with the first connection hole 1511, so that the transmitting antenna 900 can be sequentially plugged in the second connection hole 811 and the first connection hole 1511 through the explosion-proof connection wire 910 to be in signal connection with the communication device.

Specifically, the first outer wall 150 is convexly provided with two bosses 151, one boss 151 is mainly used for incoming wires, and the other boss 151 is mainly used for outgoing wires. In addition, one pressing assembly 800 is correspondingly arranged on each boss 151. More specifically, the compression assembly 800 includes a compression nut 810, and the compression nut 810 is axially opened with the second connection hole 811. In the radial direction of the bright detector 10, a filler region 820 is formed between the compression nut 810 and the first outer wall 150, wherein the filler region 820 is filled with a sealing filler. Further, in order to further improve the sealing property, a seal ring and a metal ring for sealing are provided between the compression nut 810 and the explosion-proof connecting wire 910.

It should be noted that the gland nut 810 can be matched with wire diameters of various specifications, so that a customer can conveniently set required configuration in advance according to installation requirements of a field environment. Because the wire diameter that the design was used contains that the user is current, so, the user can need not to change original explosion-proof connecting wire 910, so, does benefit to the upgrading transformation cost who saves the user. It should be noted that, in this embodiment, the communication device in the explosion-proof chamber 400 may be in wireless or wired connection with other components to realize remote control. In addition, as shown in fig. 2, an external ground 160 is disposed on the first outer wall 150 of the main casing 100, and correspondingly, as shown in fig. 6, an internal ground 170 is disposed in the explosion-proof chamber 400, so that the light detector 10 and the electrical components therein are grounded, thereby ensuring the personal safety of the user.

It should be further noted that a two-dimensional code 280 is disposed on the second outer wall 270 of the upper case 200 of the bright detector 10, so that a user can know various items of information of the bright detector 10 by scanning the two-dimensional code 280.

From the above, it can be understood that the bright detector 10 has at least the following features:

(1) the method can be applied to explosion-proof scenes such as petroleum and petrochemical industries, and the protection grade at least can meet IP 65;

(2) the motion sensing and the illumination brightness value detection can be realized simultaneously, the detection device is matched with other components or modules for use, and data are fed back to a background for remote control management;

(3) the signal connection between the transmitting antenna 900 and the communication device is realized by an explosion-proof connecting wire 910 (such as a cable), so that the installation or the detachable maintenance is convenient during the use process.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.

Claims

1. A bright detector is characterized by comprising a main shell, an upper shell and a transparent cover, wherein the main shell, the upper shell and the transparent cover are sequentially sleeved from outside to inside, the main shell is provided with a first inner wall and a first outer wall, the upper shell is provided with a second inner wall and a second outer wall, and the transparent cover is provided with a third inner wall and a third outer wall;

the bright motion detector also comprises a transmitting antenna, and a circuit board assembly, a communication device, a brightness sensing device, a motion sensing device and a control assembly which are arranged in the explosion-proof cavity; the transmitting antenna is in signal connection with the communication device, the circuit board assembly is provided with the communication device, the brightness induction device, the motion induction device and the control assembly, the brightness induction device and the motion induction device are in signal connection with the communication device, and the brightness induction device and the motion induction device are controlled by the control assembly;

the upper shell further comprises a second explosion-proof shell, and the second thread explosion-proof structure comprises third threads arranged on a second inner wall of the second explosion-proof shell and fourth threads arranged on a third outer wall of the transparent cover; a threaded connection structure is formed between the third thread and the fourth thread, and a matching surface between the third thread and the fourth thread is formed into a second explosion-proof joint surface;

the upper shell and the transparent cover are sleeved at the second explosion-proof joint surface;

a joint gap is formed between the second inner wall of the second explosion-proof shell and the third outer wall of the transparent cover; in the height direction of the bright detector, the joint gap is positioned on the inner side of the second thread explosion-proof structure; the joint gap is filled with an organic compound for sealing, and a seal joint surface is formed.

2. The bright detector of claim 1, wherein the main shell comprises a joint shell, the upper shell comprises a first explosion-proof shell, and the first threaded explosion-proof structure comprises first threads provided on a first inner wall of the joint shell and second threads provided on a second outer wall of the first explosion-proof shell; and a threaded connection structure is formed between the first thread and the second thread, and the matching surface of the first thread and the second thread is formed into a first explosion-proof joint surface.

3. The light detector of claim 2, wherein the length of the first flameproof interface is greater than or equal to 14mm in the height direction of the light detector.

4. The bright detector of claim 2, characterized in that the bright detector further comprises a sealing member, the main shell further comprises a first sealing shell connected with the top end of the joint shell, the upper shell further comprises a second sealing shell connected with the top end of the first explosion-proof shell, a radial sealing cavity is formed between the first inner wall of the first sealing shell and the second outer wall of the second sealing shell, and the sealing member is arranged in the sealing cavity to enhance the sealing performance of the first thread explosion-proof structure.

5. The light detector of claim 4, wherein outside the capsule, a first inner wall of the first capsule has a beveled portion formed thereon for preventing extrusion wear of the seal against a second outer wall of the second capsule prior to fitting into the capsule.

6. The light detector of claim 4, further comprising a fastener, wherein the first seal housing has a radial fixing hole, and the fastener is inserted into the fixing hole and connected to the second seal housing to prevent the seal from being released from the seal cavity.

7. The light detector of claim 1, further comprising a fixing pressing member disposed at a position corresponding to the joint gap and located in the explosion-proof chamber, wherein a portion of the fixing pressing member abuts against the second inner wall of the second explosion-proof housing, and a portion of the fixing pressing member abuts against the bottom end of the transparent cover.

8. The light detector according to any one of claims 1 to 7, wherein the first outer wall of the main casing is provided with a boss protruding outward, and the boss is provided with a first connecting hole communicated with the explosion-proof chamber; the bright motion detector further comprises a pressing assembly which is inserted into the first connecting hole and can ensure the sealing performance of the explosion-proof cavity, the pressing assembly is provided with a second connecting hole communicated with the first connecting hole, and the transmitting antenna can be sequentially inserted into the second connecting hole and the first connecting hole through explosion-proof connecting wires with different wire diameters so as to be in signal connection with the communication device.