CN215892072U - Explosion-proof lamp - Google Patents

Abstract

The utility model relates to the technical field of explosion-proof lighting, and provides an explosion-proof lamp.A first opening is formed in an explosion-proof cavity, and a cover body further comprises a) a cover body for closing the first opening, and b) a heat dissipation shell which surrounds the cover body and is connected with the periphery of the cover body; the cover body is provided with a first wire passing hole; the end part A) of the heat dissipation shell far away from the cover body is enclosed to form a second opening, or B) is enclosed and closed/converged to form a second wire passing hole opposite to the first wire passing hole; a plurality of heat dissipation holes are distributed on the heat dissipation shell; a light source plate i) disposed at the second opening, facing outside the second opening; or i i) is arranged on the outer wall of the end part of the heat dissipation shell far away from the cover body and covers the second wire passing hole; the lamp shade encloses the light source board. 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.

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. 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:

the explosion-proof cavity is provided with a first opening,

the cover body further comprises a) a cover body for closing the first opening, and b) a heat dissipation shell surrounding the cover body and connected with the periphery of the cover body; the cover body is provided with a first wire passing hole; the end part A) of the heat dissipation shell far away from the cover body is enclosed to form a second opening, or B) is enclosed and closed/converged to form a second wire passing hole opposite to the first wire passing hole; a plurality of heat dissipation holes are distributed on the heat dissipation shell;

a light source plate i) disposed at the second opening, facing outside the second opening; or ii) is arranged on the outer wall of the end part of the heat dissipation shell far away from the cover body and covers the second wire passing hole;

a lamp cover enclosing the light source board.

Optionally, the heat dissipation shell extends from the periphery of the cover body away from the explosion-proof cavity to form a shape of one of a cylindrical surface body, a circular truncated cone, a truncated pyramid and a disc wing, and the plurality of heat dissipation holes are formed in the side wall of the heat dissipation shell.

Optionally, the heat dissipation housing has a radially outwardly extending disc wing, and the plurality of heat dissipation holes are uniformly formed in the disc wing along the circumferential direction.

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

Optionally, the cover body is recessed along the inner side of the periphery into the flameproof cavity to form a first protruding part on the inner side of the cover body.

Optionally, the first protrusion is an annular rib along the inner side of the peripheral edge of the cap body, and the outer edge of the first protrusion corresponds to/fits the inner edge of the first opening; a concave part or a second convex part corresponding to the annular convex edge is formed on the inner wall of the explosion-proof cavity along the circumferential direction;

the explosion-proof lamp also comprises a fastener, and the explosion-proof cavity is also provided with a rim which surrounds the periphery of the first opening and extends outwards and transversely at 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 abut/press against each other as the lid peripheral edge and the rim are fastened by the fastener.

Optionally, the explosion-proof lamp further comprises a power line, which penetrates through the explosion-proof cavity and is connected to the light source plate through a) the first wire passing hole and b) the second wire passing hole/the second opening.

Optionally, the explosion-proof lamp further comprises a pressing plate at least partially surrounding and pressing the periphery of the lamp cover, wherein the pressing plate is annular and is a) disposed in the second opening or b) disposed around the second wire passing hole.

Optionally, the fastener is a first bolt; and

the explosion-proof lamp also comprises a second bolt which penetrates through the interior of the heat dissipation shell and fixes the pressure plate on the periphery of the cover body and/or the edge of the first opening.

Optionally, the explosion-proof lamp further comprises a power panel, a wiring post and a wiring barrel, wherein the wiring barrel penetrates through the inside of the heat dissipation shell and is communicated with a) the first wiring hole and b) the second wiring hole/second opening; a third wire passing hole is formed in the explosion-proof cavity and is opposite to the first opening, the wiring terminal is connected to the outer side of the third wire passing hole, and the power panel is arranged in the explosion-proof cavity;

A) 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 the first wire passing hole, the wire barrel 4 and the second wire passing hole; or the power line is connected to the power panel through the wiring terminal and the third wire passing hole, further connected to the light source panel through the first wire passing hole and the wire passing tube and in the second opening;

the explosion-proof lamp also comprises a light screen surrounding the lamp shade and protruding outwards in an arc shape, and the light screen is fixed at the second opening/the periphery of the lamp shade in the same direction as the protruding direction of the arc shape;

the explosion-proof cavity, the wire passing cylinder, the cover body and the heat dissipation shell are made of metal heat conduction materials; the heat dissipation housing is detachably mechanically coupled with the cover body; the light source plate is made of heat conducting materials and is connected to the outer wall of the heat dissipation shell in a heat conducting mode.

In some embodiments of the utility model, in the explosion-proof lamp, the heat dissipation shell has a hollow structure and is arranged between the explosion-proof cavity and the light source part, so that when an electric component and the like in the explosion-proof cavity explode, the impact and vibration of the explosion can be isolated from the light source plate, the damage caused by the explosion is mainly limited in the explosion-proof cavity, and the heat dissipation shell is generally a hollow cavity made of metal, so that the heat dissipation shell is not easily influenced by the explosion. And should be separated between flame proof 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 casing both sides simultaneously to and the heat dissipation cavity of circulation of air lasts the heat dissipation, showing and improving rate of heat dissipation and continuation, avoided the high temperature danger that the heat accumulation brought under the circumstances that flame proof cavity and light source portion are close to between them to and the potential safety hazard that brings because of the heat accumulation.

In addition, in some embodiments, the wire passing cylinder not only guides the wire connection between the separated explosion-proof cavity and the light source part, but also contacts the cover body, the hollow shell and/or the light source plate, and contacts the wire passing cylinder to conduct heat, 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 housing 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.

In some embodiments, the second concave portion and the first convex portion are hermetically matched 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 out of the explosion-proof cavity through the periphery of the cover body and the periphery 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 perspective view of an explosion-proof lamp according to an embodiment of the present invention.

Fig. 2 is a perspective assembly view of the explosion-proof lamp of fig. 1 from a first viewing angle.

Fig. 3 is a perspective assembly view of the explosion-proof lamp of fig. 1 at a second viewing angle opposite to the first viewing angle.

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

Fig. 5 is a perspective assembly view of the explosion-proof lamp of fig. 4 from a first viewing angle.

Fig. 6 is a perspective assembly view of the explosion-proof lamp of fig. 4 at a second viewing angle opposite to the first viewing angle.

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

Fig. 8 is a perspective assembly view of the explosion-proof lamp of fig. 7 from a first viewing angle.

Fig. 9 is a perspective assembly view of the explosion-proof lamp of fig. 7 at a second viewing angle opposite to the first viewing angle.

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.

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. 7 is a perspective assembly view of an explosion-proof lamp according to an embodiment of the present invention, fig. 8 is a perspective assembly view of the explosion-proof lamp of the present invention of fig. 7 at a first viewing angle, and fig. 9 is a perspective assembly view of the explosion-proof lamp of the present invention of fig. 7 at a second viewing angle opposite to the first viewing angle. As shown in fig. 7 to 9, the explosion-proof lamp disclosed in this embodiment includes an explosion-proof cavity 12, a cover 11, a light source plate 31, and a lamp cover 32. The explosion-proof cavity 12 is provided with a first opening 121, a cover 11, and the cover 11 further includes a cover body 111 and a heat dissipation casing 2. Wherein the cover body 111 closes the first opening 121 (the closed state is not shown), optionally, the heat dissipation housing 2 includes a second housing 25, and the second housing 25 surrounds the cover body 111 and is connected with the periphery of the cover body 111, so as to form a hollow heat dissipation chamber. The cover body 111 is provided with a first wire passing hole 13; the second housing 25 encloses a second opening 29 at an end remote from the cover body 111, as shown in fig. 9. A plurality of heat dissipation holes 23 are distributed on the second shell 25; and a light source plate 31 disposed at the second opening 29 toward the outside of the second opening 29. And a lamp housing 32 enclosing the light source plate 31.

Optionally, the explosion-proof lamp or the heat dissipating housing 2 further includes a first housing 24, and the first housing 24 is used for thermally connecting the light source board 31 and is fastened to the second opening 29 of the second housing 25, so as to fix the light source board 31 in the second opening 29. In other words, the light source board 31 may be directly disposed in the second opening 29, or may be indirectly fixed in the second opening 29 through the first housing 24.

Alternatively, as shown in fig. 1 to 3, another explosion-proof lamp is disclosed in this embodiment, in which the heat-dissipating housing 2 has a different structure. The explosion-proof lamp comprises an explosion-proof cavity 12, a cover body 11, a light source plate 31, a lampshade 32 and a heat dissipation shell 2. The explosion-proof cavity 12 is opened with a first opening 121. The cover 11 further includes a) a cover body 111 closing the first opening 121, b) a heat dissipating case 2 surrounding the cover body 111 and connected to a periphery of the cover body 111. The cover body 111 is provided with a first wire passing hole 13. The end of the heat dissipating housing 2 far from the cover body 111 is surrounded and closed/converged to form a second wire passing hole 22 opposite to the first wire passing hole 13, as shown in fig. 3; the heat dissipation case 2 is provided with a plurality of heat dissipation holes 23. A light source plate 31 disposed on an outer wall of an end portion of the heat dissipation case 2 far from the cover body 111 and covering the second wire passing hole 22; and a lamp housing 32 enclosing the light source plate 31.

Alternatively, in some embodiments, the connection between the cover body 111 and the heat dissipation housing 2 is not limited to an integrally connected, integrally extended structural relationship, but may also be a detachable mechanical coupling/connection structural relationship, and such a detachable structure may facilitate component replacement and maintenance.

It can be understood that the heat dissipation casing 2 is arranged between the explosion-proof cavity 12 and the light source part 3 (for example, the light source plate 31) to separate two heat sources, and simultaneously, the two heat sources are directly conducted through two sides of the heat dissipation casing 2 respectively: the explosion-proof cavity 12 containing the heating electric components and the light source plate 31. And, the heat dissipation casing 2 has still formed the heat dissipation cavity of circulation of air, is showing and is improving rate of heat dissipation and continuation, has avoided the potential safety hazard because of the heat accumulation brings.

Optionally, in some embodiments, a light shield 26 extending obliquely from the edge is attached to the first housing 24, which facilitates concentrating the light energy. The second casing 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 heat dissipation casing 2 and the cover 11 covering the heat dissipation casing form a heat dissipation cavity. As can be understood by the various embodiments, the heat-dissipating casing 2 may be independent, i.e., separable from the cover body 111; as another alternative modification, the heat dissipation housing 2 may also be integrally connected to the periphery of the cover body 111 or the lower end of the flameproof cavity 12. In addition, the first casing 24 (if present) and the second casing 25 in the heat dissipation casing 2 may be integrally connected, integrally formed, or may be separable and independent from each other. Alternatively, the heat-dissipating casing 2 may be a prismoid, cylindrical, disc-wing, or truncated cone structure.

Optionally, the explosion-proof cavity 12, the cover 11, the heat dissipation housing 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. To enhance assemblability and aesthetic appearance of the explosion-proof lamp.

Optionally, the cover 11 is a disk structure, the periphery of the disk structure is a rim 17, the explosion-proof cavity 12 is a bell-shaped structure, the rim 17 is arranged around the bottom of the bell-shaped structure, the rim 17 is provided with a plurality of bolt pieces, the bolt pieces fix the attached rim 17 and the second rim 16, and the top of the bell-shaped structure is provided with a binding post 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 explosion-proof cavity 12, the wire passing cylinder 4, the cover body 11 and the heat dissipation shell 2 are made of metal heat conduction materials; the heat-dissipating housing 2 is detachably mechanically coupled with the cover body 111; the light source board 31 is made of a heat conductive material and is thermally connected to the outer wall of the first case 24 or the heat dissipation case 2.

Fig. 1 is a schematic structural view of an explosion-proof lamp according to still another embodiment of the present invention, fig. 2 is a schematic perspective assembly view of the explosion-proof lamp according to the present invention shown in fig. 1 from a first viewing angle, and fig. 3 is a schematic perspective assembly view of the explosion-proof lamp according to the present invention shown in fig. 1 from a second viewing angle opposite to the first viewing angle. The same components in this explosion-proof lamp and fig. 7-9 are not repeated, and as shown in fig. 1-3, the explosion-proof lamp disclosed in this embodiment includes an explosion-proof cavity 12, which is provided with a first opening 121, a cover 11 hermetically covers the first opening 121, and optionally, the cover 11 is bolted to the explosion-proof cavity 12. A first wire passing hole 13 is formed in the cover body 11; the heat dissipation shell 2 is connected with the cover body 11, and the heat dissipation shell 2 comprises a hollow shell 21 with a second opening 29, a second wire passing hole 22, a plurality of heat dissipation holes 23 and a plurality of heat dissipation holes, wherein the hollow shell 21 is internally provided with a heat dissipation cavity; the light source unit 3 is connected to the hollow case 21 and provided opposite to the cover 11. The light source unit 3 includes a light source board 31 thermally connected to the hollow case 21. Alternatively, in the extreme case, the bottom of the hollow case 21 is empty, with a large opening in which the light source board 31 is directly disposed, with the air flowing through the heat dissipation cavity to dissipate heat. The wire passing cylinder 4 penetrates through the heat dissipation cavity and is communicated with the first wire passing hole 13 and the second wire passing hole 22 so as to guide the connection of wires between the explosion-proof cavity 1 and the light source part 3. It can be understood that the heat dissipation shell 2 is arranged between the explosion-proof cavity 12 and the light source part 3 to separate two heating sources, and meanwhile, the two heating sources are respectively and directly conducted through two sides of the heat dissipation shell 2, and the heat dissipation cavity of air circulation continuously dissipates heat, so that the heat dissipation rate and the continuity are obviously improved, and the potential safety hazard caused by heat accumulation is avoided.

The wire passing cylinder 4 not only guides the wire connection between the separated explosion-proof cavity 12 and the light source part 3, but also the wire passing cylinder 4 is in contact with the cover body 11, the hollow shell body 21 and/or the light source plate 31, and the wire passing cylinder 4, the cover body 11, the hollow shell body 21 and/or the light source plate 31 are made of heat conducting materials, so that the heat radiation efficiency is improved through the contact heat conduction of the wire passing cylinder 4.

Optionally, the first housing 24 of the explosion-proof lamp is connected to the light source board 31 on the outer wall thereof in a heat conducting manner, the second wire passing hole 22 is formed on the first housing 24, the first housing 24 is adapted to and fastened to the second opening 29 of the second housing 25 to form the heat dissipating housing 2 and the heat dissipating cavity therein with the second housing 25, and the end surface of the second housing 25 is connected to the cover 11 in a heat conducting manner. It can be understood that the heat dissipation housing 2 has dual heat dissipation effects of end-face 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 has a plurality of heat dissipation holes 23 uniformly distributed therein, the periphery of the cover 11 extends substantially vertically to form an annular cylinder wall 122, which is functionally and/or structurally equivalent to the first housing 25 in some other embodiments, the annular cylinder wall 122 is thermally connected to the end of the cylindrical structure, and the heat dissipation housing 2 and the cover 11 enclose 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.

Optionally, the cover 11 is recessed towards the inside of the flameproof cavity 12 along the inside of the periphery to form a first protruding portion 18 on the inside of the cover, 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 chamber formed between the cover 11 and the heat dissipation housing 2, and enhances the speed/efficiency of heat dissipation by convection or the like. Alternatively, the first boss 18 is an annular rib along the inside of the periphery of the lid 11; and a second concave part or a second convex part 123 corresponding to the annular convex rib is formed on the inner wall of the explosion-proof cavity 12 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 surface area of the cover body 11 to the outside is increased 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, and the explosion-proof cavity 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 explosion-proof cavity through the periphery of the cover body 11 and the periphery of the first opening 121. This also enhances the mechanical strength of the bond between the flameproof chamber 12 and the cover 11.

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 comprises a pressure plate 33 at least partially surrounding and pressing the lamp shade 32 along the periphery of the lamp shade 32, the pressure plate 33 is heat-conductive covered on the end part of the second opening 29 on the heat dissipation shell 2, and the periphery 34 of the pressure plate 33 extends along the outer wall of the heat dissipation shell 2; the explosion-proof lamp further includes a second bolt 51, and the second bolt 51 passes through the inside of the heat dissipation housing 2 to fix the pressure plate 33 and the cover 11 relatively, so as to press and fix the pressure plate 33, the lamp cover 32, and the heat dissipation housing 2 on the cover 11 in sequence.

The explosion-proof lamp further comprises a power panel and a wiring post 19, a third wiring hole (not marked in the figure) is formed in the explosion-proof cavity 12 and is opposite to the first opening 121, the wiring post is connected to the outer side of the third wiring hole, and some electric components with certain explosive property are arranged on the power panel, so that the power panel is arranged in the explosion-proof 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.

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 perspective assembly view of the explosion-proof lamp according to the present invention shown in fig. 4 from a first viewing angle, and fig. 6 is a schematic perspective assembly view of the explosion-proof lamp according to the present invention shown in fig. 4 from a second viewing angle opposite to the first viewing angle. The same components in the explosion-proof lamp of this embodiment as those in fig. 1-3 are not repeated, and as shown in fig. 4-6, the second housing 25 is a circular truncated cone structure, a through hole is formed in the circular truncated cone surface of the circular truncated cone structure, the first housing 24 is an inverted circular truncated cone structure, the inverted circular truncated cone structure is detachably connected with the circular truncated cone structure to form a disc-shaped structure (or also called as a disc wing, i.e. a structure similar to a wing portion of a flying disc) with a heat dissipation cavity, and a plurality of heat dissipation holes 23 are uniformly distributed in the disc-shaped structure. It can be understood that the explosion-proof cavity 12 and the power panel 21 below are adaptive to the surface of the circular truncated cone in size, the disc-shaped structure is expanded based on the surface of the circular truncated cone, no shielding object exists above and below the circular truncated cone, which are faced by the heat dissipation holes 23 formed in the disc-shaped structure, and the upper/lower opening directions of the heat dissipation holes are consistent with the convection direction, so that heat dissipation is easier through air convection.

Optionally, the second casing 25 in the heat dissipation casing 2 extends from the periphery of the cover body 111 away from the explosion-proof cavity 12 to form a shape of one of a cylinder, a circular truncated cone, a truncated pyramid and a disc wing, and the plurality of heat dissipation holes 23 are opened on the side wall of the heat dissipation casing 2. Alternatively, the heat radiating case 2 has a disk wing spreading radially outward, and a plurality of heat radiating holes 23 are distributed on the disk wing. Alternatively, the disk wing is formed by two substantially disk-shaped first and second housings 24 and 25 extending radially outward, and a plurality of heat dissipation holes 33 are radially distributed on the two disk-shaped housings, each of the plurality of heat dissipation holes being radially strip-shaped.

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 protrusion 123 which is engaged with the sealing ring 18 in a stepped manner, and forms a stepped structure which is connected with the sealing ring 18 in a sealing manner.

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. The diameter of the first wire passing hole 13 is reduced as much as possible, and the airtightness of the explosion-proof cavity 12 is improved. Optionally, the fastener 15 is inserted through the periphery of the second casing 25 and the second edge 16 of the cover 11 to connect the heat dissipation casing 2 and the explosion-proof cavity 12, and the heat dissipation casing 2 and the explosion-proof cavity 12 are arranged at an interval, which is beneficial for air to enter or flow out of the heat dissipation cavity from the second opening 29 to improve the heat dissipation effect.

Further, it should be appreciated that various alternatives, modifications, variations, or improvements of the embodiments disclosed above, as well as other features and functions, or alternatives thereof, may be desirably combined into many other embodiments, systems, or applications. Presently unforeseen or unanticipated alternatives, modifications, variations or improvements therein may be subsequently made by those skilled in the art which are also intended to be encompassed by the following claims. Therefore, the spirit and scope of the appended claims should not be limited to the description of the versions contained herein.

It should be understood that various changes and modifications to the presently preferred embodiments described herein will be apparent to those skilled in the art. Such changes and modifications can be made without departing from the spirit and scope of the present invention and without diminishing its intended advantages. It is therefore intended that such changes and modifications be covered by the appended claims.

Furthermore, those skilled in the art will appreciate that embodiments not explicitly illustrated herein may be practiced within the scope of this discovery, including that features described herein for different embodiments may be combined with each other and/or with currently known or later developed techniques while remaining within the scope of the claims presented herein. It is therefore intended that the foregoing detailed description be regarded as illustrative rather than limiting. It should be understood that the following claims, including all equivalents, are intended to define the spirit and scope of this discovery. Moreover, the advantages described above are not necessarily the only advantages of the present discovery, and it is not necessarily expected that every embodiment employing the present discovery will achieve all of the described advantages.

[ alternative embodiments ]

Embodiment 1. an explosion-proof lamp includes:

the explosion-proof cavity is provided with a first opening,

the cover body further comprises a) a cover body for closing the first opening, and b) a heat dissipation shell surrounding the cover body and connected with the periphery of the cover body; the cover body is provided with a first wire passing hole; the end part A) of the heat dissipation shell far away from the cover body is enclosed to form a second opening, or B) is enclosed and closed/converged to form a second wire passing hole opposite to the first wire passing hole; a plurality of heat dissipation holes are distributed on the heat dissipation shell;

a light source plate i) disposed at the second opening, facing outside the second opening; or ii) is arranged on the outer wall of the end part of the heat dissipation shell far away from the cover body and covers the second wire passing hole;

the lamp shade encloses the light source board.

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

the heat dissipation shell extends from the periphery of the cover body away from the explosion-proof cavity to form one of a cylindrical surface body, a circular truncated cone, a prismatic table or a disc wing, and the plurality of heat dissipation holes are formed in the side wall of the heat dissipation shell.

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

the heat dissipation shell is provided with a disc wing which extends outwards along the radial direction, and the heat dissipation hole is uniformly formed in the disc wing along the circumferential direction.

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, and the plurality of radiating holes are all in a strip shape and are distributed on the two dish-shaped shells along the radial direction.

5. The explosion-proof lamp according to any one of embodiments 1 to 4, characterized in that the cover body is recessed inside the explosion-proof cavity along the inner side of the periphery to form a first protruding part inside the cover body.

6. The explosion-proof lamp of embodiment 5, wherein the first protrusion is an annular rib along the inside of the peripheral edge of the cap body, and the outer edge of the first protrusion corresponds to/fits the inner edge of the first opening; a concave part or a second convex part corresponding to the annular convex edge is formed on the inner wall of the explosion-proof cavity along the circumferential direction;

the explosion-proof lamp also comprises a fastener, and the explosion-proof cavity is also provided with a rim which surrounds the periphery of the first opening and extends outwards and transversely at 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 abut/press against each other as the lid peripheral edge and the rim are fastened by the fastener.

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

the explosion-proof lamp also comprises a power line which penetrates through the explosion-proof cavity and is connected with the light source plate through a) the first wire passing hole and b) the second wire passing hole/the second opening.

8. The explosion-proof lamp of embodiment 7, wherein the explosion-proof lamp further comprises a pressure plate at least partially surrounding and pressing the periphery of the lamp housing, wherein the pressure plate is ring-shaped and a) disposed in the second opening or b) disposed around the second wire passing hole.

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

the explosion-proof lamp also comprises a second bolt which penetrates through the interior of the heat dissipation shell and fixes the pressure plate on the periphery of the cover body and/or the edge of the first opening.

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 passing through the inside of the heat dissipation housing to communicate a) the first wire passing hole and b) the second wire passing hole/second opening; a third wire passing hole is formed in the explosion-proof cavity and is opposite to the first opening, the wiring terminal is connected to the outer side of the third wire passing hole, and the power panel is arranged in the explosion-proof cavity;

A) 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 the first wire passing hole, the wire barrel 4 and the second wire passing hole; or the power line is connected to the power panel through the wiring terminal and the third wire passing hole, further connected to the light source panel through the first wire passing hole and the wire passing tube and in the second opening;

the explosion-proof lamp also comprises a light screen surrounding the lamp shade and protruding outwards in an arc shape, and the light screen is fixed at the second opening/the periphery of the lamp shade in the same direction as the protruding direction of the arc shape;

the explosion-proof cavity, the wire passing cylinder, the cover body and the heat dissipation shell are made of metal heat conduction materials; the heat dissipation housing is detachably mechanically coupled with the cover body; the light source plate is made of heat conducting materials and is connected to the outer wall of the heat dissipation shell in a heat conducting mode.

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.

Those skilled in the art having the benefit of this disclosure will appreciate that the array module of a parabolic solar receiver provides an efficient way of generating power while protecting the array from environmental conditions. It should be understood that the drawings and detailed description herein are to be regarded in an illustrative rather than a restrictive manner, and are not intended to be limiting to the particular forms and examples disclosed. On the contrary, any further modifications, changes, rearrangements, substitutions, design choices, and embodiments may be made by those skilled in the art without departing from the spirit and scope of the utility model as defined by the following claims. It is therefore intended that the following appended claims be interpreted as covering all such further modifications, changes, rearrangements, substitutions, alternatives, design choices, and embodiments.

It will be appreciated that the above embodiments that have been described in particular detail are merely examples or possible embodiments, and that there are many other combinations, additions or alternatives that may be included.

While the present invention has been described herein with respect to a number of specific illustrative embodiments, the foregoing description is intended to illustrate, but not limit the utility model. Those skilled in the art will recognize many modifications to the illustrative embodiments, which will be operable. All such modifications within the scope of the claims are intended to be within the scope and spirit of the present invention.

Claims (10)

1. An explosion-proof lamp, comprising:

the explosion-proof cavity is provided with a first opening,

the cover body further comprises a) a cover body for closing the first opening, and b) a heat dissipation shell surrounding the cover body and connected with the periphery of the cover body; the cover body is provided with a first wire passing hole; the end part A) of the heat dissipation shell far away from the cover body is enclosed to form a second opening, or B) is enclosed and closed/converged to form a second wire passing hole opposite to the first wire passing hole; a plurality of heat dissipation holes are distributed on the heat dissipation shell;

a light source plate i) disposed at the second opening, facing outside the second opening; or ii) is arranged on the outer wall of the end part of the heat dissipation shell far away from the cover body and covers the second wire passing hole;

the lamp shade encloses the light source board.

2. The explosion-proof lamp of claim 1,

the heat dissipation shell extends from the periphery of the cover body away from the explosion-proof cavity to form one of a cylindrical surface body, a circular truncated cone, a prismatic table or a disc wing, and the plurality of heat dissipation holes are formed in the side wall of the heat dissipation shell.

3. The explosion-proof lamp of claim 1,

the heat dissipation shell is provided with a disc wing which extends outwards along the radial direction, and the heat dissipation hole is uniformly formed in the disc wing along the circumferential direction.

4. The explosion-proof lamp of claim 3,

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

5. The explosion-proof lamp of any one of claims 1 to 4, wherein the cover is recessed inwardly of the explosion-proof cavity along a peripheral edge to form a first protrusion inside the cover.

6. The explosion-proof lamp of claim 5, wherein the first protrusion is an annular rib along the inside of the peripheral edge of the cap body, the outer edge of which corresponds/fits to the inner edge of the first opening; a concave part or a second convex part corresponding to the annular convex edge is formed on the inner wall of the explosion-proof cavity along the circumferential direction;

the explosion-proof lamp also comprises a fastener, and the explosion-proof cavity is also provided with a rim which surrounds the periphery of the first opening and extends outwards and transversely at 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 abut/press against each other as the lid peripheral edge and the rim are fastened by the fastener.

7. The explosion-proof lamp of claim 6,

the explosion-proof lamp also comprises a power line which penetrates through the explosion-proof cavity and is connected with the light source plate through a) the first wire passing hole and b) the second wire passing hole/the second opening.

8. The explosion-proof lamp of claim 7, further comprising a pressure plate at least partially surrounding and pressing the periphery of the lamp housing, wherein the pressure plate is ring-shaped, a) disposed in the second opening or b) disposed around the second wire passing hole.

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

the explosion-proof lamp also comprises a second bolt which penetrates through the interior of the heat dissipation shell and fixes the pressure plate on the periphery of the cover body and/or the edge of the first opening.

10. The explosion-proof lamp of claim 9, wherein the explosion-proof lamp further comprises a power supply board, a wiring post, and a wiring barrel passing through the inside of the heat dissipation case to communicate a) the first wiring hole and b) the second wiring hole/second opening; a third wire passing hole is formed in the explosion-proof cavity and is opposite to the first opening, the wiring terminal is connected to the outer side of the third wire passing hole, and the power panel is arranged in the explosion-proof cavity;

A) 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 the first wire passing hole, the wire barrel 4 and the second wire passing hole; or the power line is connected to the power panel through the wiring terminal and the third wire passing hole, further connected to the light source panel through the first wire passing hole and the wire passing tube and in the second opening;

the explosion-proof lamp also comprises a light screen surrounding the lamp shade and protruding outwards in an arc shape, and the light screen is fixed at the second opening/the periphery of the lamp shade in the same direction as the protruding direction of the arc shape;

the explosion-proof cavity, the wire passing cylinder, the cover body and the heat dissipation shell are made of metal heat conduction materials; the heat dissipation housing is detachably mechanically coupled with the cover body; the light source plate is made of heat conducting materials and is connected to the outer wall of the heat dissipation shell in a heat conducting mode.

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