CN216243971U

CN216243971U - Explosion-proof lamp

Info

Publication number: CN216243971U
Application number: CN202121282447.4U
Authority: CN
Inventors: 黄美琼
Original assignee: Guangdong Minhua Electrical Appliances Co ltd
Current assignee: Guangdong Minhua Electrical Appliances Co ltd
Priority date: 2021-03-23
Filing date: 2021-06-08
Publication date: 2022-04-08
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 hermetically covers the first opening, and the cover body is provided with a first wire passing hole; the heat dissipation cavity is connected with the cover body and comprises a hollow shell, a second wire passing hole and a plurality of heat dissipation holes, wherein the hollow shell is provided with a second opening, a heat dissipation cavity is formed in the hollow shell, the second wire passing hole penetrates through the hollow shell, and the heat dissipation holes are distributed on the hollow shell and communicated with the heat dissipation cavity through air; the light source part is connected the cavity casing and sets up with the lid relatively, and the light source part includes, light source board, and the heat conduction is connected the cavity casing, crosses a line section of thick bamboo, and it runs through the heat dissipation cavity and communicates first cross the line hole and second cross the line hole in order to guide the connection of electric lines between power cavity and the light source part. 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 lamps, 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 caused by the poor heat dissipation effect.

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 covers the first opening in an explosion-proof and/or airtight manner, and a first wire passing hole is formed in the cover body;

a heat dissipation cavity body in heat conduction connection with the cover body, the heat dissipation cavity body comprises,

a hollow case having a second opening formed at an upper end thereof, the hollow case having a heat dissipation cavity formed therein,

a second wire through hole penetrating the lower end part of the hollow shell,

a plurality of heat dissipation holes distributed on the hollow shell to communicate the heat dissipation cavity with the outside of the hollow shell through air;

a light source part connected with the hollow shell and opposite to the cover body, the light source part comprises,

a light source plate disposed outside the lower end portion of the hollow case,

and the wire passing cylinder penetrates through the inside of the heat dissipation cavity and is communicated with the first wire passing hole and the second wire passing hole so as to guide the connection of wires between the power supply cavity and the light source part.

In another 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 hermetically covers the first opening, and a first wire passing hole is formed in the cover body;

a heat dissipation cavity body connected with the cover body, the heat dissipation cavity body comprises,

a hollow shell with a second opening, wherein a heat dissipation cavity is formed inside the hollow shell,

a second wire through hole penetrating through the hollow shell,

a plurality of heat dissipation holes distributed on the hollow shell and communicated with the heat dissipation cavity through air;

a light source part connected with the hollow shell and arranged opposite to the cover body, the light source part comprises,

a light source plate in heat-conducting connection with the hollow shell,

and the wire passing cylinder penetrates through the heat dissipation cavity and is communicated with the first wire passing hole and the second wire passing hole so as to guide the connection of wires between the power supply cavity and the light source part.

Optionally, the wire passing cylinder contacts the cover body, the hollow shell body and/or the light source plate, and the wire passing cylinder, the cover body, the hollow shell body and/or the light source plate are made of heat conducting materials.

Optionally, the heat dissipation cavity comprises a heat dissipation plate,

the first shell is in heat conduction connection with the light source board, the second wire passing hole is formed in the first shell,

the second shell is adapted to the first shell to form the heat dissipation cavity together with the first shell, and the end face of the second shell is connected with the cover body in a heat conduction mode.

Optionally, the second housing is a cylindrical structure extending substantially vertically from the edge of the first housing, the cylindrical structure is uniformly distributed with a plurality of heat dissipation holes, the periphery of the cover body extends substantially vertically to form an annular cylindrical wall, the annular cylindrical wall is connected to the end of the cylindrical structure in a heat conducting manner, and the heat dissipation cavity and the cover body enclose to form a heat dissipation cavity.

Optionally, the second shell is of a round platform structure, a through hole is formed in the surface of a round platform of the round platform structure, the first shell is of an inverted round platform structure, the inverted round platform structure is detachably connected with the round platform structure to form a dish-shaped structure with a heat dissipation cavity, and the dish-shaped structure is uniformly distributed with the heat dissipation holes.

Optionally, the first housing has a light shielding plate extending obliquely from an edge, the second housing is a cylindrical structure extending substantially vertically from the edge of the cover, the cylindrical structure is uniformly distributed with a plurality of heat dissipation holes, and the heat dissipation cavity and the cover form a heat dissipation cavity.

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 along the inner side of the periphery of the cap body; 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 mutually abutted/hermetically matched with each other as the peripheral edge of the cover body and the rim are fastened by the fastener.

Optionally, the cover body is provided with a first concave portion with a concave direction facing the heat dissipation cavity, at least a part of the first concave portion is accommodated in the heat dissipation cavity, and the first shell body is provided with a second concave portion accommodating and fitting the light source board.

Optionally, the fastener is a first bolt;

the explosion-proof lamp further comprises a lamp body,

a lamp cover enclosing (enc los ing) the light source plate,

the pressure plate at least partially surrounds and presses the lampshade along the periphery of the lampshade, the pressure plate is covered on the end part of the heat dissipation cavity opposite to the second opening in a heat conduction manner, and the periphery of the pressure plate extends along the outer wall of the heat dissipation cavity;

the explosion-proof lamp also comprises a second bolt which penetrates through the heat dissipation cavity to relatively fix the pressure plate and the cover body, so that the pressure plate, the lampshade and the heat dissipation cavity are sequentially pressed and fixed on the cover body.

The explosion-proof lamp also comprises a power supply board and a wiring terminal, wherein a third wire passing hole is formed in the power supply 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 supply board is arranged in the power supply cavity;

the power line is connected to the power panel through the wiring terminal and the third wire passing hole and is further connected to the light source panel through the first wire passing hole, the wire passing barrel and the second wire passing hole;

the end part of the wire passing cylinder close to the light source board is provided with a platform part surrounding the end part, the platform part is abutted against the light source board,

the explosion-proof lamp further comprises a light screen surrounding the lamp shade, the lamp shade is provided with an outward arc-shaped convex optical surface, and the light screen and the arc-shaped convex direction of the optical surface are sheathed on the outer wall of the end part of the heat dissipation cavity in a consistent manner.

In some embodiments of the utility model, in the explosion-proof lamp, the heat dissipation cavity is arranged between the power supply cavity and the light source part to separate the two heating sources, and the two heating sources are directly conducted through two sides of the heat dissipation cavity 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 heat accumulation is avoided. And the heat dissipation cavity is of 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, the damage caused by the explosion is mainly limited in 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. The wire passing cylinder not only guides the connection of wires between the separated power supply 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 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 and the first convex portion are 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.

In some embodiments, the third recessed portion attached to the light source board increases a direct heat conducting area and is in air circulation, and heat dissipation efficiency is improved.

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. A first wire passing hole 13 is formed in the cover body 11; the heat dissipation cavity 2 is connected with the cover body 11, and the heat dissipation cavity 2 comprises a hollow shell 21 with a second opening 29, a heat dissipation cavity formed inside, a second wire passing hole 22 penetrating through the hollow shell 21, and a plurality of heat dissipation holes 23 distributed on the hollow shell 21 and communicated with the heat dissipation cavity through air; the light source unit 3 is connected to the hollow case 21 and opposite to the cover 11, and the light source unit 3 includes a light source plate 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 tube 4 penetrates the first wire passing hole 13 and the second wire passing hole 22 to guide the connection of the electric wire between the power supply cavity 1 and the light source part 3. It can be understood that the heat dissipation cavity 2 is arranged between the power supply 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 cavity 2, 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 heat accumulation is avoided.

The wire passing cylinder 4 not only guides the wire connection between the separated power supply cavity 12 and the light source part 3, but also further, the wire passing cylinder 4 contacts the cover body 11, the hollow shell body 21 and/or the light source plate 31, 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, and the wire passing cylinder 4 contacts and conducts heat, so that the heat dissipation efficiency is improved.

Optionally, the hollow housing 21 includes a first housing 24 and a second housing 25, the first housing 24 is connected to the light source board 31 in a heat conducting manner, the second wire passing hole 22 is formed in the first housing 24, the second housing 25 is adapted to the first housing 24 to form the heat dissipating cavity 2 with the first housing 24, and an 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 cavity 2 has dual heat dissipation effects of end 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.

Optionally, the cover 11 is recessed along the inner side of the periphery into the power cavity 12 to form a first protrusion 18 on the inner side of the cover, and the contour of the first protrusion 18 is adapted to the shape of the first opening 121. This increases the volume of the heat dissipation chamber formed between the heat dissipation chamber and the heat dissipation chamber, and increases the speed/efficiency of heat dissipation by convection or the like. Alternatively, the first boss 18 is an annular ridge along the inside of the periphery of the cap 11; the inner wall of the power cavity 12 forms a second recess 123 or a second protrusion corresponding to the annular rib along the circumferential direction. The convex edge structure increases the external surface area of the cover body 11, and the heat dissipation effect is enhanced. The explosion-proof lamp further comprises a fastener, and the power supply 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 recess 123 or second projection, 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 123 or the second convex portion also forms a closed ring shape, and one of the two portions is hermetically fitted with the first convex portion 18 in the circumferential direction to form a longer and more flexible explosion-proof joint surface, so that gas, shock waves and the like generated by explosion are less likely 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. This also enhances the mechanical strength of the bond between the power cavity 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 transfer area and is in the air circulation, improving the heat dissipation efficiency.

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 heat-conductive covered on the end of the heat dissipation cavity 2 opposite to the second opening 29, and the periphery of the pressure plate 33 extends along the outer wall of the heat dissipation cavity 2; the explosion-proof lamp further comprises 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 lampshade 32 and the heat dissipation cavity 2 are pressed and fixed on the cover 11 in sequence.

The explosion-proof lamp also comprises a power supply board and a wiring terminal 19, a third wiring hole is formed in the power supply cavity 12 and is opposite to the first opening 121, the wiring terminal is connected to the outer side of the third wiring hole, and the power supply board is arranged in the power supply 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 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 to 3 are not repeated, as shown in fig. 4 to 6, the second housing 25 is a circular truncated cone structure, a through hole is formed in the 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 with a heat dissipation cavity, and a plurality of heat dissipation holes 23 are uniformly distributed in the disc-shaped structure. It will be appreciated that the power cavity 12 and the underlying power plate 21 are sized to fit the surface of the truncated cone, and the dish-shaped structure expands outward based on the surface of the truncated cone, which facilitates convection. Optionally, the heat dissipation cavity 2 has a disk wing expanding outward in the radial direction, and a plurality of heat dissipation holes 23 are distributed on the disk wing. The disk wing is formed by fastening two first shells 24 and second shells 25 which extend outwards in 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 in the radial direction.

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 rim 16 of the cover 11 to connect the heat dissipation cavity 2 and the power cavity 12, and the heat dissipation cavity 2 and the power cavity 12 are spaced apart from each other, which facilitates air to enter or exit from the heat dissipation cavity through the second opening 29 to improve 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 of the explosion-proof lamp as those in fig. 1 to 6 will not be described in detail, and as shown in fig. 7 to 9, the first housing 24 has a light shielding plate 26 extending obliquely from the edge, which facilitates light concentration. 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 heat dissipation cavity 2 and the cover 11 form a heat dissipation cavity. It will be understood by various embodiments that the heat dissipation chamber 2 may be separate or may be formed by combining components extending from the power chamber 12 and/or the power section 3. 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 heat dissipation cavity 2, the light source unit 3 and the wire barrel 4 are of a central symmetrical structure 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.

[ alternative embodiments ]

Embodiment 1. an explosion-proof lamp includes:

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

a second wire through hole penetrating through the hollow shell,

a light source plate in heat-conducting connection with the hollow shell,

2. The explosion-proof lamp of embodiment 1, wherein the wire passing cylinder contacts the cover body, the hollow case body and/or the light source plate, and the wire passing cylinder, the cover body, the hollow case body and/or the light source plate are made of a heat conductive material.

3. The explosion-proof lamp of embodiment 2, wherein the heat dissipation chamber comprises,

4. The explosion-proof lamp of embodiment 3, wherein the second housing is a cylindrical structure extending substantially vertically from the edge of the first housing, the cylindrical structure has a plurality of heat dissipation holes uniformly distributed therein, the periphery of the cover extends substantially vertically to form an annular cylinder wall, the annular cylinder wall is connected to an end of the cylindrical structure in a heat conducting manner, and the heat dissipation cavity and the cover enclose a heat dissipation cavity.

5. The explosion-proof lamp of embodiment 3, wherein, the second casing is round platform structure, the round platform surface of round platform structure is equipped with the through-hole, first casing is inverted round platform structure, inverted round platform structure can dismantle the connection the round platform structure forms the dish-shaped structure that has the heat dissipation cavity, dish-shaped structure evenly distributed a plurality of louvres.

6. The explosion-proof lamp of embodiment 3, wherein the first housing has a light shielding plate extending obliquely from an edge, the second housing is a cylindrical structure extending substantially perpendicularly from the edge of the cover, the cylindrical structure has a plurality of heat dissipation holes uniformly distributed, and the heat dissipation cavity and the cover form a heat dissipation cavity.

7. The explosion-proof lamp according to any one of embodiments 1 to 6, wherein the cover body is recessed into the power supply cavity along an inner side of a peripheral edge thereof to form a first protruding portion at an inner side of the cover body, and an outline of the first protruding portion is adapted to a shape of the first opening.

8. The explosion-proof lamp of embodiment 7, wherein the first boss is an annular bead along the inside 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;

9. The explosion-proof lamp of embodiment 8, wherein the cover body is provided with a first recess portion having a recess direction facing the heat dissipation cavity, at least a portion of the first recess portion is received in the heat dissipation cavity, and the first housing body is provided with a second recess portion receiving and adhering to the light source board.

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

the explosion-proof lamp further comprises a lamp body,

a lamp shade for covering the light source plate,

the explosion-proof lamp also comprises a second bolt which penetrates through the heat dissipation cavity to relatively fix the pressure plate and the cover body, so that the pressure plate, the lampshade and the heat dissipation cavity are sequentially pressed and fixed on the cover body;

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.

Claims

1. An explosion-proof lamp, comprising:

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

a second wire through hole penetrating the lower end part of the hollow shell,

a light source part connected to the hollow case opposite to the cover body, the light source part including,

a light source plate disposed outside the lower end portion of the hollow case,

2. The explosion-proof lamp of claim 1, wherein the wire passing barrel contacts the cover body, the hollow case body and/or the light source plate, and the wire passing barrel, the cover body, the hollow case body and/or the light source plate are made of a heat conductive material.

3. The explosion-proof lamp of claim 2, wherein the heat-dissipating cavity comprises,

4. The explosion-proof lamp as claimed in claim 3, wherein the second housing is a cylindrical structure extending substantially vertically from the edge of the first housing, the cylindrical structure has a plurality of heat dissipation holes uniformly distributed therein, the periphery of the cover extends substantially vertically to form an annular cylindrical wall, the annular cylindrical wall is thermally connected to an end of the cylindrical structure, and the heat dissipation cavity and the cover enclose a heat dissipation cavity.

5. The explosion-proof lamp of claim 3, wherein the second housing 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 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 with a heat dissipation cavity, and the disc-shaped structure is uniformly distributed with the plurality of heat dissipation holes.

6. The explosion-proof lamp as claimed in claim 3, wherein the first housing has a light shielding plate extending obliquely from the edge, the second housing is a cylindrical structure extending substantially perpendicularly from the edge of the cover, the cylindrical structure has a plurality of heat dissipation holes uniformly distributed therein, and the heat dissipation cavity and the cover form a heat dissipation cavity.

7. The explosion-proof lamp of any one of claims 3 to 6, wherein the cover is recessed into the power supply cavity along a peripheral inner side to form a first boss inside the cover, the first boss having an outline adapted to the shape of the first opening.

8. The explosion-proof lamp of claim 7, wherein the first boss is an annular bead along the inside 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;

9. The explosion-proof lamp of claim 8, wherein the cover body is provided with a first recess portion recessed toward the heat dissipation cavity, at least a portion of the first recess portion is received in the heat dissipation cavity, and the first case body is provided with a second recess portion receiving and fitting the light source board.

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

the explosion-proof lamp further comprises a lamp body,

a lamp shade for covering the light source plate,

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 passing barrel and the second wire passing hole;