CN215892073U

CN215892073U - Explosion-proof lamp

Info

Publication number: CN215892073U
Application number: CN202121282448.9U
Authority: CN
Inventors: 曾凡昌
Original assignee: Lose International Electric Co ltd
Current assignee: Lose International Electric Co ltd
Priority date: 2021-03-23
Filing date: 2021-06-08
Publication date: 2022-02-22
Anticipated expiration: 2031-06-08

Abstract

The utility model relates to the technical field of explosion-proof lighting, and provides an explosion-proof lamp.A power supply cavity is provided with a first opening, a cover body is closed to cover the first opening, and a first wire passing hole is formed in the cover body; the heat dissipation cavity is provided with a second opening, surrounds and is connected to the periphery of the cover body through the second opening, and is provided with a plurality of heat dissipation holes and a second wire passing hole opposite to the first wire passing hole; the light source plate is arranged at the end part, far away from the second opening, of the heat dissipation cavity; the lamp shade covers the light source plate and is relatively fixed with the light source plate. Therefore, the heat dissipation performance of the explosion-proof lamp is improved.

Description

Explosion-proof lamp

Technical Field

The utility model relates to the technical field of explosion-proof illumination, in particular to an explosion-proof lamp which can be applied to fire-fighting emergency illumination.

Background

The explosion-proof lamp is used in dangerous places where combustible gas and dust exist, and can prevent electric arcs, sparks and high temperature possibly generated in the lamp from igniting the combustible gas and dust in the surrounding environment, so that the lamp meets the explosion-proof requirement. The explosion-proof lamp is widely applied to industries such as petroleum, chemical engineering, coal and the like. Different flammable gas mixture environments have different requirements on the explosion-proof grade and the explosion-proof form of the explosion-proof lamp. The fire-fighting emergency lighting system mainly comprises an accident emergency lighting lamp, an emergency sign lamp, an indicator light and the like, and is arranged for guiding trapped people to evacuate or carrying out fire-extinguishing rescue actions after a normal lighting power supply is cut off in case of fire. The existing explosion-proof lamp has the defects of poor heat dissipation effect, poor lighting stability and potential safety hazard.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks, an object of the present invention is to improve heat dissipation of an explosion-proof lamp.

In one embodiment of the present invention, there is provided an explosion-proof lamp including:

a power cavity body which is provided with a first opening,

the cover body is used for closing the first opening in a sealing way and is provided with a first wire passing hole;

the heat dissipation cavity is provided with a second opening, surrounds the periphery of the cover body through the second opening and is connected to the periphery of the cover body, and the heat dissipation cavity is provided with a plurality of heat dissipation holes and a second wire passing hole opposite to the first wire passing hole;

the light source plate is arranged at the end part, far away from the second opening, of the heat dissipation cavity;

the lamp shade covers the light source plate and is relatively fixed with the light source plate.

Optionally, the heat dissipation cavity extends from the second opening to a direction away from the power supply cavity to be in a shape of one of the following: the heat dissipation cavity comprises a prismatic table, a cylindrical surface, a disc wing or a circular table, and a plurality of heat dissipation holes are formed in the side wall of the heat dissipation cavity.

Optionally, the heat dissipation cavity has a disk wing expanding outward in the radial direction, and the plurality of heat dissipation holes are distributed on the disk wing.

Optionally, the disk wing is formed by two disk-shaped shells extending radially outward in a fastened manner, the plurality of heat dissipation holes are radially distributed on the two disk-shaped shells, and each of the plurality of heat dissipation holes is in a strip shape in a radial direction.

Optionally, the cover body is recessed into the power supply cavity along an inner side of a periphery to form a first protruding portion on the inner side of the cover body, and an outline of the first protruding portion is adapted to a shape of the first opening.

Optionally, the first protrusion is an annular rib located inward of the periphery of the cap; a concave part or a second convex part corresponding to the annular convex rib is formed on the inner wall of the power supply cavity along the circumferential direction;

the explosion-proof lamp further comprises a fastener, the power supply cavity further comprises a rim, and the rim transversely extends around the outer periphery of the first opening; the fastener penetrates through the periphery and the edge of the cover body; and

a) the rib and b) the recess or the second protrusion are tightly fitted/contacted with each other as the peripheral edge and the rim of the cap body are fastened by the fastening member.

Optionally, the explosion-proof lamp further comprises a power line penetrating through the power cavity and connected to the light source board through the first wire passing hole and the second wire passing hole.

Optionally, the light source plate is disposed at a third opening of the heat dissipation cavity opposite to the second opening; or,

the second wire passing hole is formed in the first part wall, opposite to the second opening, of the heat dissipation cavity, and the light source board is connected to the outer side of the first part wall in a heat conduction mode and covers the second wire passing hole.

Optionally, the fastener is a first bolt;

the explosion-proof lamp also comprises a pressure plate which at least partially surrounds and presses the lamp shade along the periphery of the lamp shade, the pressure plate is in heat conduction covering on the outer wall of the end part of the heat dissipation cavity opposite to the second opening, and the periphery of the pressure plate extends towards the direction of the second opening along the outer wall of the heat dissipation cavity;

the explosion-proof lamp further comprises a second fastener, and the second fastener penetrates through the heat dissipation cavity 2 to fix the pressure plate and the cover body relatively.

Optionally, the explosion-proof lamp further comprises a power panel, a wiring post and a wire passing tube, wherein the power panel, the wiring post and the wire passing tube are located in the power cavity, and the wire passing tube longitudinally penetrates through the inside of the heat dissipation cavity and is communicated with the first wire passing hole and the second wire passing hole; a third wire passing hole is formed in the power supply cavity and is opposite to the first opening, and the wiring terminal is connected to the outer side of the third wire passing hole;

the power line is connected to the power panel through the wiring terminal and the third wire passing hole and further connected to the light source panel through a) the first wire passing hole, b) the wire passing tube, c) the second wire passing hole or a third opening;

the explosion-proof lamp also comprises a light screen surrounding the lamp shade, the lamp shade is provided with an optical surface protruding outwards in an arc shape, and the light screen and the arc-shaped protruding direction of the optical surface are sheathed on the end part, opposite to the second opening, of the heat dissipation cavity in a consistent manner;

the power supply cavity, the wire passing cylinder, the cover body and the heat dissipation cavity are made of explosion-proof heat conduction materials; the explosion-proof heat conduction material is metal; the light source plate is made of heat conducting material; the heat dissipation cavity is integrally connected with the cover body.

In some embodiments of the utility model, in the explosion-proof lamp, the heat dissipation cavity has a hollow structure and is arranged between the power supply cavity and the light source part, so that when the power supply cavity explodes, the impact and vibration of the explosion can be isolated from the light source plate, thereby mainly limiting the damage caused by the explosion to the power supply cavity, and the heat dissipation cavity is generally a hollow cavity made of metal, so that the heat dissipation cavity is not easily influenced by the explosion. And should be separated between power cavity and light source portion, carry out the physical separation with two sources that generate heat, directly heat two sources that generate heat respectively through heat dissipation cavity both sides simultaneously to and the heat dissipation cavity of circulation of air lasts the heat dissipation, showing and having improved rate of heat dissipation and continuation, avoided power cavity and light source portion both close to the high temperature danger that the heat accumulation brought under the condition brought, and because of the potential safety hazard that the heat accumulation brought.

In addition, in some embodiments, the wire passing cylinder not only guides the wire connection between the separated power supply cavity and the light source part, but also contacts the cover body, the hollow shell body and/or the light source plate, and contacts the heat conducting plate, so that the heat dissipation efficiency is improved.

In addition, in some embodiments, the annular cylinder wall is directly connected with the end of the cylinder structure in a heat conducting manner, so that the direct heat conducting part is positioned near the heat dissipation holes with high air flow rate, which is beneficial to improving the heat dissipation efficiency.

Furthermore, in some embodiments, the outline of the first protruding portion is adapted to the shape of the first opening, so that the volume of the heat dissipation cavity formed between the first protruding portion and the heat dissipation cavity is increased, the speed/efficiency of heat dissipation through convection and the like is increased, the surface area of the cover body to the outside is increased by the rib structure, and the heat dissipation effect is enhanced.

Further, in some embodiments, the second concave portion or the first convex portion is hermetically matched in the circumferential direction to form a longer and more flexible explosion-proof joint surface, and gas, shock waves and the like generated by explosion are less prone to be released out of the power supply cavity through the peripheral edge of the cover body and the peripheral edge of the first opening.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural diagram of an explosion-proof lamp according to an embodiment of the present invention.

Fig. 2 is a schematic view illustrating an explosion structure in a first direction of the explosion-proof lamp of fig. 1.

Fig. 3 is an exploded view of the explosion-proof lamp of the present invention of fig. 1 in a second direction opposite to the first direction.

Fig. 4 is a schematic structural view of an explosion-proof lamp according to another embodiment of the present invention.

Fig. 5 is an exploded view of the explosion-proof lamp of fig. 4 in a first direction.

Fig. 6 is an exploded view of the explosion-proof lamp of the present invention of fig. 4 in a second direction opposite to the first direction.

Fig. 7 is a schematic structural view of an explosion-proof lamp according to still another embodiment of the present invention.

Fig. 8 is an exploded view of the explosion-proof lamp of fig. 7 in a first direction.

Fig. 9 is an exploded view of the explosion-proof lamp of the present invention of fig. 7 in a second direction opposite to the first direction.

In the description of the drawings, the same, similar or corresponding reference numerals indicate the same, similar or corresponding elements, components or functions.

Detailed Description

Reference will now be made in detail to the embodiments, examples of which are illustrated in the accompanying drawings. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of various described embodiments. It will be apparent, however, to one skilled in the art that the various described embodiments may be practiced without these specific details. In other instances, well-known methods, procedures, components, circuits, and networks have not been described in detail as not to unnecessarily obscure aspects of the embodiments.

The terminology used in the description of the various described embodiments herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the description of the various described embodiments and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

The word "by" as used in this application may be construed as "by" (by), "by" (by virtual of) or "by" (by means of) depending on the context. The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, "when … …" or "when … …" in some embodiments may also be interpreted as conditional assumptions such as "if", "like", etc., depending on context. Similarly, the phrases "if (a stated condition or event)", "if determined" or "if detected (a stated condition or event)" may be construed as "when determined" or "in response to a determination" or "when detected (a stated condition or event)", depending on the context. Similarly, the phrase "in response to (a stated condition or event)" in some embodiments may be interpreted as "in response to detecting (a stated condition or event)" or "in response to detecting (a stated condition or event)", depending on the context.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, a first may also be termed a second, and vice versa, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at …" or "when …" or "in response to a determination", depending on the context.

The present application is further illustrated by way of the following examples, which are not intended to limit the scope of the utility model.

Fig. 1 is a schematic diagram illustrating an explosion structure of an explosion-proof lamp according to an embodiment of the present invention, fig. 2 is a schematic diagram illustrating an explosion structure of the explosion-proof lamp according to the present invention in a first direction of the explosion-proof lamp according to fig. 1, and fig. 3 is a schematic diagram illustrating an explosion structure of the explosion-proof lamp according to the present invention in a second direction opposite to the first direction of the explosion-proof lamp according to fig. 1. As shown in fig. 1-3, the explosion-proof lamp disclosed in this embodiment includes a power cavity 12 having a first opening 121, a cover 11, and the cover 11 hermetically covers the first opening 121, and optionally, the cover 11 is bolted to the power cavity 12. The cover 11 is provided with a first wire passing hole 13. The heat dissipating cavity 2 has a second opening 29, and surrounds and is connected to the periphery of the cover 11 through the second opening 29, the heat dissipating cavity 2 is provided with a plurality of heat dissipating holes 23, and the heat dissipating cavity 2 is further provided with a second wire passing hole 22 opposite to the first wire passing hole 13. The light source plate 31 is arranged at the end part of the heat dissipation cavity 2 far away from the second opening 29; and a lamp cover 32 covering (enclosing) the light source plate 31 and fixed to the light source plate 31.

Alternatively, in some embodiments, the heat dissipating cavity 2 may include a hollow housing 21, and the end of the hollow housing 21 away from the second opening 29 may have an open opening, which may be relatively large enough to accommodate the entire lampshade/light source board 31, or relatively small enough to serve as a wire through hole, and the light source board 31 is disposed on the outer wall of the end and powered by a power cord through the wire through hole. It can be understood that the heat dissipation cavity 2 is arranged between the power cavity 12 and the light source board 31 to separate two heat sources, and simultaneously, the two heat sources are directly conducted through two sides of the heat dissipation cavity 2 respectively, and the heat dissipation cavity with air circulation continuously dissipates heat, so that the heat dissipation rate and the continuity are obviously improved, and the potential safety hazard caused by the heat accumulation of the two heat sources is avoided.

Alternatively, the bottom of the hollow case 21 is empty, having a large opening in which the light source board 31 is directly disposed, and the air passing through the heat dissipation cavity flows to dissipate heat.

Optionally, the heat dissipation cavity 2 extends from the second opening 29 to a direction away from the power cavity 12 to have a shape of one of the following: the prism table, the cylindrical surface, the disc wing or the circular truncated cone and the plurality of heat dissipation holes 23 are arranged on the side wall of the heat dissipation cavity 2.

Optionally, the cover 11 is recessed into the power cavity 12 along the inner side of the periphery to form a first protruding portion 18 on the inner side of the cover 11, and the outline of the first protruding portion 18 is adapted to the shape of the first opening 121. This increases the volume of the heat dissipation cavity formed between the heat dissipation chamber 2 and enhances the speed/efficiency of heat dissipation by means of convection or the like. Alternatively, the first boss 18 is an annular rib along the inside of the periphery of the lid 11; the inner wall of the power cavity 12 forms a second recess or second protrusion 123 corresponding to the annular rib along the circumferential direction. Because the convex edge structure formed by the cover body concaves towards the interior of the explosion-proof cavity 12, the convex edge structure increases the external surface area of the cover body 11 at the outer side of the cover body 11, and the heat dissipation effect is enhanced.

Further optionally, the explosion-proof lamp further comprises a fastener, the power cavity 12 further comprises a rim 17 extending transversely around the outer periphery of the first opening 121; the fastener 15 is arranged on the periphery and the edge 17 of the cover body 11 in a penetrating way; and a) an annular rib and b) a second recessed portion or second raised portion 123, which abut/sealingly engage with each other as the peripheral edge of cap 11 and rim 17 are fastened by fastener 15. The second concave portion or the second convex portion 123 also forms a closed ring shape, and one of the two portions is hermetically matched with the first convex portion 18 in the circumferential direction to form a longer and more zigzag explosion-proof joint surface, so that gas, shock waves and the like generated by explosion are less prone to be released outside the power supply cavity through the peripheral edge of the cover body 11 and the peripheral edge of the first opening 121, and the mechanical strength of the joint between the power supply cavity 12 and the cover body 11 is enhanced.

Optionally, the explosion-proof lamp further includes a power line passing through the power cavity 12 and connected to the light source board 31 through the first wire passing hole 13 and the second wire passing hole 22.

Optionally, the explosion-proof lamp further includes a pressure plate 33 at least partially surrounding and pressing the lamp cover 32 along the periphery of the lamp cover 32, the pressure plate 33 is thermally conductive to cover the outer wall of the end portion of the heat dissipation cavity 2 opposite to the second opening 29, and the periphery 34 of the pressure plate 33 extends along the outer wall of the heat dissipation cavity 2 toward the second opening 29.

Optionally, the explosion-proof lamp further includes a second fastening member, such as a second bolt 51, and the second bolt 51 penetrates through the heat dissipation cavity 2 to fix the pressure plate 33 and the cover 11 relatively, so that the pressure plate 33, the lamp cover 32, and the heat dissipation cavity 2 are sequentially pressed and fixed on the cover 11.

Optionally, the periphery of the cover 11 extends substantially vertically to form an annular cylinder wall 122, the annular cylinder wall 122 is connected to the end of the cylindrical structure in a heat conducting manner, and the heat dissipation cavity 2 and the cover 11 enclose to form a heat dissipation cavity. It can be seen that the annular cylinder wall 122 is directly connected to the end of the cylindrical structure in a heat conducting manner, so that the direct heat conducting portion is located near the heat dissipation hole 23 with a high air flow rate, which is beneficial to improving the heat dissipation efficiency.

Alternatively, the cover 11 is provided with a first recess 110 having a recess direction facing the heat dissipation cavity, at least a portion of the first recess 110 is received in the heat dissipation cavity, and the first case 24 is provided with a third recess 27 receiving and adhering to the light source plate 31. This increases the direct heat conducting area and makes the external heat dissipation area of the cover 11 in the air circulation to a greater extent, improving the heat dissipation efficiency.

Optionally, the explosion-proof lamp further includes a second bolt 51, and the second bolt 51 penetrates through the heat dissipation cavity 2 to fix the pressure plate 33 and the cover 11 relatively, so that the pressure plate 33, the lamp cover 32, and the heat dissipation cavity 2 are sequentially pressed and fixed on the cover 11.

The explosion-proof lamp further comprises a power panel (not shown in the figure) and a terminal 19, wherein a third wire through hole (located at a joint part of the power cavity 12 and the terminal 19, but not marked in the figure) is formed in the power cavity 12, the third wire through hole is opposite to the first opening 121, the terminal 19 is connected to the outer side of the third wire through hole, and a plurality of electrical components with certain explosive property are arranged on the power panel, so that the power panel is isolated in the power cavity 12.

The power line is connected with the power panel through the wiring terminal 19 and the third wire through hole and further connected with the light source panel 31 through the first wire through hole 13, the wire through barrel 4 and the second wire through hole 22; the end of the bobbin 4 near the light source plate 31 is provided with a terrace portion 41 surrounding the end, and the terrace portion 41 abuts against the light source plate 31. Optionally, the wire passing cylinder 4 not only guides the wire connection between the separated power cavity 12 and the light source part 3, but further, the wire passing cylinder 4 contacts the cover body 11, the hollow shell body 21 and/or the light source plate 31, one or more of the wire passing cylinder 4, the cover body 11, the hollow shell body 21 and the light source plate 31 are made of a heat conducting material, and the wire passing cylinder 4 contacts the heat conducting material to improve the heat dissipation efficiency.

Optionally, the heat dissipation cavity 2 includes a first housing 24, and further optionally may further include a second housing 25, and the second opening 29 in some embodiments may be opened on the first housing 25. Here, the first housing 24 is thermally conductively connected to the light source board 31, so that the light source board 31 is disposed in the second opening 29 through the first housing 24. The second wire passing hole 22 is provided on the first housing 24. The second casing 25 is adapted to the first casing 24 to be fastened with the first casing 24 to form the heat dissipation cavity 2, and the outer side surface of the second casing 25 is connected to the cover 11 in a heat conduction manner. It can be understood that the heat dissipation cavity 2 has the double heat dissipation effects of outer side surface contact heat conduction and air circulation heat dissipation. Optionally, the first housing 24 is attached to the light source plate 31, which improves the direct contact heat conducting area. The second housing 25 is a cylindrical structure extending substantially perpendicularly from the edge of the first housing 24, and it will be appreciated that the hollow housing 21 has a second opening 29 facing the cover 11. The cylindrical structure is uniformly distributed with a plurality of heat dissipation holes 23, the periphery of the cover body 11 extends approximately vertically to form an annular cylinder wall 122, the annular cylinder wall 122 is connected with the end part of the cylindrical structure in a heat conduction manner, and the heat dissipation cavity 2 and the cover body 11 enclose to form a heat dissipation cavity. It can be seen that the annular cylinder wall 122 is directly connected to the end of the cylindrical structure in a heat conducting manner, so that the direct heat conducting portion is located near the heat dissipation hole 23 with a high air flow rate, which is beneficial to improving the heat dissipation efficiency.

Fig. 4 is a schematic structural view of an explosion-proof lamp according to another embodiment of the present invention, fig. 5 is a schematic structural view of an explosion in a first direction of the explosion-proof lamp according to the present invention of fig. 4, and fig. 6 is a schematic structural view of an explosion in a second direction opposite to the first direction of the explosion-proof lamp according to the present invention of fig. 4. The same parts of the explosion-proof lamp in this embodiment as those in fig. 1-3 are not repeated, and as shown in fig. 4-6, the heat dissipation cavity 2 has a dish wing (i.e. a structure similar to a wing of a flying saucer) extending outward in the radial direction, and a plurality of heat dissipation holes 23 are distributed on the dish wing. The disk wing is formed by buckling two first shells 24 and second shells 25 which extend outwards along the radial direction and are like disk-shaped shells, a plurality of heat dissipation holes 33 are distributed on the two disk-shaped shells in a radial mode, and each of the heat dissipation holes is in a strip shape along the radial direction. The dish wing expands outward and makes the size greater than parts such as power cavity 12 on and power board 21, pressure disk 33 below, and the louvre is not sheltered from to the outside, and the upper and lower trompil direction and the convection direction of these louvres are unanimous, so pass through the convection heat dissipation more easily.

Alternatively, the cover 11 is provided with a first protrusion 18 such as a sealing ring surrounding the first wire passing hole 13, and the inner wall of the cover 11 is provided with a second recess 123 which is stepped to fit the sealing ring 18 and forms a stepped structure, and the stepped structure is hermetically connected with the sealing ring 18.

Optionally, the first housing 24 is provided with a third recess 27 that receives and conforms to the light source board 31. The third recessed portion 27 is larger than the light source plate 31, and the light source plate 31 is sleeved with a sealing ring 35 at its periphery to be hermetically connected to the third recessed portion 27.

Optionally, the wire passing barrel 4 includes a first wire passing barrel 42 penetrating through the first wire passing hole 13 and a second wire passing barrel 43 penetrating through the second wire passing hole 22, the diameter of the first wire passing hole 13 is smaller than that of the second wire passing hole 22, and the diameter of the second wire passing hole 22 is smaller than that of the second opening 29. Further, the first wire passing cylinder 42 is in interference fit with the first wire passing hole 13, the second wire passing cylinder 43 is in interference fit with the second wire passing hole 22, and the first wire passing cylinder 42 is inserted into the second wire passing cylinder 43. This is beneficial to reducing the diameter of the first wire through hole 13 as much as possible and improving the tightness of the power cavity 12. Optionally, the fastening member 15 is disposed through the periphery of the second casing 25 and the second edge 16 of the cover 11 to connect the heat dissipation cavity 2 and the power cavity 12, and the power cavity 12 and the light source plate 31 are spaced by the heat dissipation cavity 2, which is beneficial for air to enter or exit from the heat dissipation cavity through the second opening 29 to improve the heat dissipation effect.

Fig. 7 is a schematic structural view of an explosion-proof lamp according to still another embodiment of the present invention, fig. 8 is a schematic structural view of an explosion in a first direction of the explosion-proof lamp according to the present invention of fig. 7, and fig. 9 is a schematic structural view of an explosion in a second direction opposite to the first direction of the explosion-proof lamp according to the present invention of fig. 7. The same parts as those in fig. 1 to 6 are not described again, and as shown in fig. 7 to 9, a light shielding plate 26 extending obliquely in the light emitting direction of the light source plate is attached to the edge of one end of the first housing 24, which facilitates light collection. The second housing 25 is a cylindrical structure extending substantially vertically from the edge of the cover 11, a plurality of heat dissipation holes 23 are uniformly distributed in the cylindrical structure, and the cover 11 covers the heat dissipation cavity 2 to form a heat dissipation cavity. It is understood that the heat dissipation cavity 2 may be independent or integrally formed from the lower end of the power cavity 12 or the periphery of the cover 11. Alternatively, the heat dissipation cavity 2 may be a prismatic table, a cylindrical surface, a disc wing or a circular truncated cone structure.

Optionally, the power cavity 12, the cover 11, the heat dissipation cavity 2, the light source unit 3, and the bobbin 4 are centrosymmetric and have collinear central axes.

Optionally, the central axes of the first wire through hole 13, the second wire through hole 22, the first opening 121 and the second opening 29 are collinear.

Optionally, the cover 11 is a disk structure, the periphery of the disk structure is a rim 17, the power supply cavity 12 is a bell-shaped structure, the bottom of the bell-shaped structure is provided with the rim 17, the rim 17 is provided with a plurality of bolt pieces, the bolt pieces fix the attached rim 17 and the second rim 171, and the top of the bell-shaped structure is provided with the terminal 19. The cover body 11 is provided with a sleeve which is sleeved with the wire passing cylinder 4, and the wire passing cylinder 4 passes through the sleeve and is sleeved with the binding post 19.

Optionally, the light source plate 31 is disposed at a third opening of the heat dissipation cavity 2 opposite to the second opening 29. The third opening may have a larger size and directly receive the light source plate 31, or the third opening may also close/converge to form the second wire passing hole 22 on the heat dissipation cavity 2, which may also be understood as follows: the second wire through hole 22 is opened on a first portion wall (not labeled in the figure, i.e. the wall of the heat dissipation cavity 2 where the second wire through hole 22 is located) of the heat dissipation cavity 2 opposite to the second opening 29, and the light source board 31 is thermally connected to the outer side of the first portion wall and covers the second wire through hole 22.

Optionally, the explosion-proof lamp further comprises a power panel, a wiring post 19 and a wire barrel 4 which are positioned in the power cavity, wherein the wire barrel 4 longitudinally penetrates through the heat dissipation cavity 2 and is communicated with the first wire passing hole 13 and the second wire passing hole 22; a third wire through hole is formed in the power cavity 12 and is opposite to the first opening 121, and the wiring post 19 is connected to the outer side of the third wire through hole. The wire passing cylinder 4 is in contact with the heat conducting pipe, so that the heat radiating efficiency is improved. The power line is connected with the power panel through the wiring terminal and the third wire passing hole and further connected with the light source panel 31 through a) the first wire passing hole, b) the wire passing barrel 4, c) the second wire passing hole 22 or the third opening;

the explosion-proof lamp also comprises a light screen 26 surrounding the lamp shade 32, the lamp shade 32 is provided with an optical surface protruding outwards in an arc shape, and the light screen 26 is sleeved on the end part of the heat dissipation cavity 2 opposite to the second opening in a manner of consistent with the arc protruding direction of the optical surface; the power supply cavity 12, the wire passing cylinder 4, the cover body 11 and the heat dissipation cavity 2 are made of an explosion-proof heat conduction material; the explosion-proof heat conduction material is metal; the light source board 31 is made of a heat conductive material; the heat dissipation chamber 2 is integrally connected to the cover 11, which means that: the heat dissipation cavity 2 is formed by integrally extending the periphery of the cover 11. Of course, the connection between the heat dissipation chamber 2 and the cover 11 is not limited to an integral connection and an integral extension, but may also be a detachable mechanical coupling/connection structure relationship, and such a detachable structure may facilitate component replacement and maintenance.

[ alternative embodiments ]

Embodiment 1. an explosion-proof lamp, characterized by, includes:

a power cavity body which is provided with a first opening,

2. The explosion-proof lamp according to embodiment 1, characterized in that,

the heat dissipation cavity extends from the second opening to a direction far away from the power cavity and is in one of the following shapes: the heat dissipation cavity comprises a prismatic table, a cylindrical surface, a disc wing or a circular table, and a plurality of heat dissipation holes are formed in the side wall of the heat dissipation cavity.

3. The explosion-proof lamp according to embodiment 1, characterized in that,

the heat dissipation cavity is provided with a disk wing which extends outwards along the radial direction, and the plurality of heat dissipation holes are distributed on the disk wing.

4. The explosion-proof lamp according to embodiment 3, characterized in that,

the dish wing is formed by buckling two dish-shaped shells extending outwards along the radial direction, the plurality of heat dissipation holes are distributed on the two dish-shaped shells in a radial mode, and each of the plurality of heat dissipation holes is in a strip shape along the radial direction.

5. The explosion-proof lamp of any one of embodiments 1-4, wherein the cover is recessed into the power supply cavity along the inner side of the periphery to form a first raised portion inside the cover, the first raised portion having a profile that fits the shape of the first opening.

6. The explosion-proof lamp of embodiment 5, wherein the first boss is an annular rib located inward of the cap periphery; a concave part or a second convex part corresponding to the annular convex rib is formed on the inner wall of the power supply cavity along the circumferential direction;

7. The explosion-proof lamp according to embodiment 6, wherein,

the explosion-proof lamp further comprises a power line which penetrates through the power cavity and is connected with the light source board through the first wire passing hole and the second wire passing hole.

8. The explosion-proof lamp of embodiment 7, wherein the light source plate is disposed at a third opening of the heat dissipation cavity opposite to the second opening; or,

9. The explosion-proof lamp of embodiment 8, wherein the fastener is a first bolt;

10. The explosion-proof lamp of embodiment 9, wherein the explosion-proof lamp further comprises a power panel, a wiring post and a wire barrel located in the power cavity, the wire barrel longitudinally penetrates the interior of the heat dissipation cavity and communicates the first wire passing hole and the second wire passing hole; a third wire passing hole is formed in the power supply cavity and is opposite to the first opening, and the wiring terminal is connected to the outer side of the third wire passing hole;

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, so that various optional technical features can be combined with other embodiments in any reasonable manner, and the contents among the embodiments and under various headings can be combined in any reasonable manner. Each embodiment is described with emphasis on differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and "a plurality" typically includes at least two. It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

While specific embodiments of the present application have been described above, it will be understood by those skilled in the art that this is by way of illustration only, and that the scope of the present application is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and principles of this application, and these changes and modifications are intended to be included within the scope of this application.

In the 90 s of the 20 th century, improvements in a technology could clearly distinguish between improvements in hardware (e.g., improvements in circuit structures such as diodes, transistors, switches, etc.) and improvements in software (improvements in process flow). However, as technology advances, many of today's process flow improvements have been seen as direct improvements in hardware circuit architecture. Designers almost always obtain the corresponding hardware circuit structure by programming an improved method flow into the hardware circuit. Thus, it cannot be said that an improvement in the process flow cannot be realized by hardware physical modules. For example, a Programmable Logic Device (PLD), such as a Field Programmable Gate Array (FPGA), is an integrated circuit whose logic functions are determined by programming the Device by a user. A digital system is "integrated" on a PLD by the designer's own programming without requiring the chip manufacturer to design and fabricate application-specific integrated circuit chips. Furthermore, nowadays, instead of manually making an Integrated Circuit chip, such Programming is often implemented by "logic compiler" software, which is similar to a software compiler used in program development and writing, but the original code before compiling is also written by a specific Programming Language, which is called Hardware Description Language (HDL), and HDL is not only one but many, such as abel (advanced Boolean Expression Language), ahdl (alternate Hardware Description Language), traffic, pl (core universal Programming Language), HDCal (jhdware Description Language), languai, Lola, HDL, pamm, hardlaw (Hardware Description Language), vhigh Language (vhigh-Language), and so on. It will also be apparent to those skilled in the art that hardware circuitry that implements the logical method flows can be readily obtained by merely slightly programming the method flows into an integrated circuit using the hardware description languages described above.

The control unit may be implemented in any suitable way, for example, the control unit may take the form of, for example, a microprocessor or processor and a computer readable medium storing computer readable program code (e.g., software or firmware) executable by the (micro) processor, logic gates, switches, an Application Specific Integrated Circuit (ASIC), a programmable logic control unit, and an embedded micro-control unit, examples of which include, but are not limited to, the following micro-control units: the ARC 625D, Atmel AT91SAM, Microchip PIC18F26K20 and Silicone Labs C8051F320, the memory control unit may also be implemented as part of the control logic of the memory. Those skilled in the art will also appreciate that instead of implementing the control unit in pure computer readable program code, it is entirely possible to logically program the method steps such that the control unit performs the same functions in the form of logic gates, timers, flip-flops, switches, application specific integrated circuits, programmable logic control units, embedded micro control units, etc. Such a control unit may thus be regarded as a hardware component and the means included therein for performing the various functions may also be regarded as structures within the hardware component. Or even means for performing the functions may be regarded as being both a software module for performing the method and a structure within a hardware component.

The systems, devices, modules or units illustrated in the above embodiments may be implemented by a computer chip or an entity, or by a product with certain functions. One typical implementation device is a computer. In particular, the computer may be, for example, a personal computer, a laptop computer, a cellular telephone, a camera phone, a smartphone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.

For convenience of description, the above devices are described as being divided into various units by function, and are described separately. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

Claims

1. An explosion-proof lamp, comprising:

a power cavity body which is provided with a first opening,

2. The explosion-proof lamp of claim 1,

3. The explosion-proof lamp of claim 1,

4. The explosion-proof lamp of claim 3,

5. The explosion-proof lamp as claimed in any one of claims 1 to 4, wherein the cover body is recessed into the power supply cavity along a peripheral inner side to form a first convex portion at an inner side of the cover body, and an outer contour of the first convex portion is adapted to a shape of the first opening.

6. The explosion-proof lamp of claim 5, wherein the first boss is an annular rib located inwardly of the cap periphery; a concave part or a second convex part corresponding to the annular convex rib is formed on the inner wall of the power supply cavity along the circumferential direction;

7. The explosion-proof lamp of claim 6,

8. The explosion-proof lamp of claim 7, wherein the light source plate is disposed at a third opening of the heat dissipation cavity opposite the second opening; or,

9. The explosion proof lamp of claim 8, wherein the fastener is a first bolt;

10. The explosion-proof lamp of claim 9, wherein the explosion-proof lamp further comprises a power panel, a wiring post and a wire barrel located in the power cavity, the wire barrel longitudinally penetrates the inside of the heat dissipation cavity and communicates the first wire passing hole and the second wire passing hole; a third wire passing hole is formed in the power supply cavity and is opposite to the first opening, and the wiring terminal is connected to the outer side of the third wire passing hole;