CN214312512U

CN214312512U - Light source driver, light emitting device, emergency marker lamp, emergency lighting marker lamp, and hanger plate marker lamp

Info

Publication number: CN214312512U
Application number: CN202021296006.5U
Authority: CN
Inventors: 黄美琼
Original assignee: Guangdong Minhua Electrical Appliances Co ltd
Current assignee: Guangdong Minhua Electrical Appliances Co ltd
Priority date: 2020-07-05
Filing date: 2020-07-05
Publication date: 2021-09-28
Anticipated expiration: 2030-07-05

Abstract

The utility model discloses a light source driver, illuminator and emergency marker light, emergency lighting marker light and hang piece marker light. Wherein: a light source driver, comprising: the driving circuit board is arranged in the cavity; the cavity comprises a cavity wall, at least one plugging piece and a first accommodating cavity formed by sealing the plugging piece; the driving circuit board is arranged in the first accommodating cavity. The light emitting device includes: the method comprises the following steps: the driving circuit comprises a driving circuit cavity, a driving circuit board and a luminous body; the driving circuit board is sealed in the driving circuit cavity; the luminous body is electrically connected with the driving circuit board. The emergency marker lamp includes: the light emitting device and the sign body. The utility model discloses electric arc, spark or red-hot surface that probably produce with electronic components on the dirver circuit board seal inside the cavity to avoid producing the risk of explosion outside and inside the lighting apparatus, when providing the emergent instruction of fire control for people, also ensured the safety of using the place.

Description

Light source driver, light emitting device, emergency marker lamp, emergency lighting marker lamp, and hanger plate marker lamp

Technical Field

The utility model relates to a fire control emergency device field, in particular to light source driver, illuminator and emergency marker lamp, emergency lighting marker lamp and hang piece marker lamp.

Background

The emergency marker lamp is a lighting device commonly used in fire fighting emergency, has long emergency time and high brightness and has the function of automatic emergency when power is off. The emergency evacuation system is usually mounted on a building channel in a wall-mounted or hoisting mode and the like, emergency evacuation signs such as a safety exit sign and the like are provided for people, and the evacuation safety of people is ensured under the emergency condition; in addition, the indicator can also be used as a conventional indicator to indicate the directions of the architectural facilities, such as indicator lights of a washroom, a cashier desk, an elevator room and the like.

Such marker lamps, being lighting devices, inevitably have the possibility of arcing, sparking or forming hot surfaces due to high voltage discharge during operation, whereas in particular locations, such as production or rescue sites, explosion accidents occur if the arcing, sparking or hot surfaces of such lighting devices meet flammable and explosive gases or dusts, which directly endanger the safety of people's lives and property.

Therefore, how to improve the safety of the fire-fighting emergency equipment such as the conventional emergency marker lamp becomes a problem to be solved urgently in the industry.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention has been made in order to provide a light source driver, a light emitting device and an emergency marker lamp, an emergency lighting marker lamp and a patch marker lamp which overcome or at least partially solve the above problems.

In a first aspect, an embodiment of the present invention provides a light source driver, including: the driving circuit board is arranged in the cavity;

the cavity comprises a cavity wall, at least one plugging piece and a first accommodating cavity formed by sealing the plugging piece;

the driving circuit board is arranged in the first accommodating cavity.

In some embodiments, the cavity has a tubular cavity open at both ends; the at least one closure member comprises: the first explosion-proof plug and the second explosion-proof plug;

the first explosion-proof plug and the second explosion-proof plug are respectively in threaded connection with two ends of the tubular cavity to form the first accommodating cavity.

In some embodiments, the cavity wall is provided with a first fastener, and the fastener penetrates through the cavity wall to fixedly connect the first explosion-proof plug and/or the second explosion-proof plug with the cavity wall.

In some embodiments, the first explosion-proof plug is provided with a first wire passing hole;

and a first lead on the driving circuit board passes through the first wire passing hole and extends out of the cavity.

In some embodiments, the light source driver further comprises: the cover body is buckled at the end part of the tubular cavity;

the first explosion-proof plug is embedded in the tubular cavity, and a second accommodating cavity is formed between the first explosion-proof plug and the cover body;

a second wire passing hole is formed in the cavity wall of the accommodating cavity;

the first lead wire on the driving circuit board penetrates through the first wire passing hole and extends out of the cavity through the second wire passing hole.

In some embodiments, the accommodating cavity is filled with a sealant.

In some embodiments, the second flameproof plug comprises: the waterproof plug comprises an L-shaped adapter and a waterproof plug;

one end of the L-shaped adapter is connected with the end part of the tubular cavity through a sealing conical pipe thread, and the other end of the L-shaped adapter is connected with the waterproof plug;

third wire passing holes penetrating through two ends are formed in the L-shaped adapter and the waterproof plug; and a second lead wire on the driving circuit board passes through the third wire passing hole and extends out of the cavity.

In some embodiments, the material of the cavity wall and/or the blocking piece is metal, and the light source driver further comprises: an insulating tube;

the insulating tube is arranged in the first accommodating cavity and sleeved outside the driving circuit board.

In a second aspect, the present invention provides a light emitting device, including: the driving circuit comprises a driving circuit cavity, a driving circuit board and a luminous body;

the driving circuit board is sealed in the driving circuit cavity;

the luminous body is electrically connected with the driving circuit board.

In some embodiments, the light emitter is a light bar;

the driving circuit cavity is internally provided with a sealed first accommodating cavity, and the driving circuit board is arranged in the first accommodating cavity;

the cavity wall of the driving circuit cavity is provided with a clamping groove, the clamping groove is isolated from the first accommodating cavity, and the light-emitting lamp strip is arranged in the clamping groove.

In some embodiments, the driving circuit cavity further comprises: the first explosion-proof plug and the second explosion-proof plug;

a tubular cavity with two open ends is arranged in the driving circuit cavity;

and a lead wire used for connecting the luminous body on the driving circuit board passes through the first wire passing hole and is electrically connected with the luminous body.

In some embodiments, the driving circuit cavity further comprises: the cover body is buckled at the end part of the tubular cavity;

the first explosion-proof plug is embedded in the opening of the tubular cavity, and a second accommodating cavity is formed between the first explosion-proof plug and the cover body;

a second wire passing hole is formed in the cavity wall of the second accommodating cavity;

the wire used for connecting the luminous body on the driving circuit board passes through the first wire passing hole and is electrically connected with the luminous body through the second wire passing hole.

In some embodiments, the second accommodating cavity is filled with a sealant.

In some embodiments, the second wire passing hole passes through an end of the tubular cavity.

In some embodiments, the second explosion-proof plug comprises an L-shaped adapter and a waterproof plug;

third wire passing holes penetrating through two ends are formed in the L-shaped adapter and the waterproof plug; and an external power supply lead on the driving circuit board penetrates out of the third wire passing hole.

In some embodiments, the light emitting device further comprises: a baffle plate;

the baffle is at least partially buckled at the end part of the clamping groove, and a sealant is filled between the baffle and the light-emitting lamp strip.

In some embodiments, the cavity wall of the driving circuit cavity and/or the first explosion-proof plug and/or the second explosion-proof plug are made of metal, and the driving circuit cavity further includes: an insulating tube;

In some embodiments, the material of the cavity wall of the driving circuit cavity is an aluminum alloy, and the wall thickness of the cavity is not less than 2 mm.

In a third aspect, an embodiment of the present invention provides a light emitting device, including: the driving circuit comprises a driving circuit cavity, a driving circuit board and a luminous body;

the driving circuit board and the luminous body are sealed in the driving circuit cavity, and the driving circuit board is electrically connected with the luminous body;

the drive circuit cavity is at least partially light permeable.

In a fourth aspect, an embodiment of the present invention provides an emergency marker light, including: such as the light emitting device and the sign body of the previous embodiments.

In some embodiments, the light emitting device is connected to the sign body and disposed at a side of the sign body.

In some embodiments, the cavity wall of the driving circuit cavity in the light-emitting device is further provided with a chip mounting groove; the chip mounting groove is communicated with the clamping groove space;

one side edge of the mark body is clamped in the sheet loading groove and is detachably connected with the light-emitting device.

In some embodiments, the side edge of the mark body clamped on the sheet loading groove is connected with the sheet loading groove through screws penetrating through the two side walls of the sheet loading groove and the side edge.

In some embodiments, the baffle is fastened to the end portions of the clamping groove and the sheet loading groove, the side edge of the sign body is further provided with a notch matched with the baffle, and the part of the baffle extending into the clamping groove is located in the notch and abuts against the sign body;

the clamping groove is perpendicular to the sheet loading groove, and the baffle is in a T shape corresponding to the end parts of the clamping groove and the sheet loading groove.

In some embodiments, further comprising: any one or combination of a first wall-mounted installation accessory, a second wall-mounted installation accessory and a hoisting installation accessory;

the first wall-mounted mounting accessory or the hoisting mounting accessory is detachably connected with the top of the light-emitting device;

the second wall-mounted installation accessory is detachably connected with an L-shaped adapter in the light-emitting device.

In some embodiments, the sign body is a light guide plate having a sign pattern; or

The sign body includes: the light guide plate comprises a metal box and a light guide plate wrapped by the metal box; the metal box is provided with a hollow pattern corresponding to the mark.

In a fifth aspect, an embodiment of the present invention provides another emergency marker light, including: the light source driver and the emergency sign board connected with the light source driver in the previous embodiment;

the emergency signboard includes: a housing having at least one see-through window, at least one sign panel, at least one light source plate and a light guide plate;

the at least one light source plate is arranged on at least one side edge of the light guide plate;

the light guide plate is positioned in a cavity formed by the shell and the at least one sign panel;

the driving circuit board in the light source driver is electrically connected with the at least one light source board.

In a sixth aspect, an embodiment of the present invention provides an emergency lighting marker light, including: the emergency lighting light source comprises an emergency lighting light source body and the emergency marker light body, wherein a driving circuit of the emergency lighting light source body is arranged in a driving circuit cavity of the emergency marker light body.

It would be beneficial if the power module could be isolated (e.g., reducing the effect of explosion factors on the power module) while the power module is used to provide power for the consumer (e.g., a ceiling marker light). Therefore, according to a seventh aspect of the present invention, in a further embodiment of the present invention, there is also provided a light emitting device, including:

the cavity and the mounting part are relatively fixedly arranged;

the driving circuit board is sealed in the cavity;

the luminous body is assembled on the installation part and is physically isolated from the driving circuit board through the cavity;

the driving circuit board is electrically coupled with the luminary via/through the cavity, for example, to supply power to the (electroluminescent) luminary in a wired connection manner or a wireless manner.

Optionally, in some embodiments, the cavity is integrally formed with the mounting portion. The cavity and the mounting portion that are integrally formed are referred to as a driving circuit cavity, a housing, a lamp housing, and the like in other embodiments. Of course, in other embodiments, the cavity and the mounting portion may be physically separated, and the two may be fixed relative to each other, directly through the supporting body, or indirectly through a separate lamp housing/casing.

Without loss of generality, in some embodiments of the present application, the description will be made in terms of a structural design in which the cavity and the mounting portion are integrally formed. However, a modification in which the cavity and the mounting portion are physically (physically) provided independently is also within the scope of the present disclosure. In the light emitting device or the ceiling marker light of some embodiments, modifications, substitutions and changes of the cavity and the mounting portion which are adapted to be integrally formed may be adapted to the cavity and the mounting portion which are independently/separately provided, and these related modifications are included in the scope of the claims.

Optionally, in some embodiments, the cavity includes at least one opening, and at least one blocking piece is correspondingly blocked on the at least one opening through the flameproof joint surface; the driving circuit board is connected to the luminous body through a lead penetrating through the at least one blocking piece and is used for providing electric energy for the luminous body. And the external power supply lead connected to the driving circuit board penetrates out of the cavity through the at least one plugging piece.

Optionally, in some embodiments, the at least one closure comprises a first closure, the at least one opening comprises a first opening; the first plugging piece is provided with a first wire passing hole and/or a third wire passing hole, and the lead and the external power supply lead are respectively arranged in the first wire passing hole and the third wire passing hole in a penetrating manner; alternatively, the lead wire and the external power supply lead wire are commonly/collectively inserted through the first wire passing hole.

Optionally, in some embodiments, the at least one closure comprises a first closure and a second closure, the at least one opening comprises a first opening and a second opening; the first blocking piece and the second blocking piece are respectively provided with a first wire passing hole and a third wire passing hole, and the wire and the external power supply lead are respectively arranged in the first wire passing hole and the third wire passing hole in a penetrating mode.

Optionally, in some embodiments, the cavity further includes a cover body covering the first opening; the first plugging piece is integrally sunk into the cavity from the first opening so as to be spaced from the cover body, and therefore a first accommodating cavity and a second accommodating cavity are formed in two sides of the first plugging piece in the wall. The cavity is provided with a second wire passing hole on the cavity wall between the cover body and the first plugging piece; the wire penetrates through the first wire passing hole and is electrically connected between the driving circuit board and the luminous body through the second wire passing hole.

Optionally, in some embodiments, a sealant is filled between the cover body and the first blocking member.

Optionally, in some embodiments, the flameproof engagement surface comprises a threaded flameproof surface. The at least one plugging piece comprises a first explosion-proof plug and a second explosion-proof plug, and the at least one opening comprises a first opening and a second opening; the first explosion-proof plug and the second explosion-proof plug are respectively in threaded connection with the first opening and the second opening.

Optionally, in some embodiments, the second wire passing hole has a groove shape, and is disposed to penetrate or open toward the cover body.

Optionally, in some embodiments, the first or second plugging member comprises an adapter and a waterproof plug; one end of the adapter is connected with the second opening through a sealing conical pipe thread, and the other end of the adapter is connected with the waterproof plug; the third wire passing hole is formed in the adapter and the waterproof plug in a penetrating mode.

Optionally, in some embodiments, the cavity is made of a metal material, and the cavity further includes an insulating tube sleeved on the driving circuit board.

Further, it would be beneficial if the isolation of the power module and the normal utilization of the electrical energy therein could be achieved simultaneously in a smaller size/compact structure of some electrical devices (e.g., a hanging piece type marker light, abbreviated as a hanging piece marker light). Wherein, this power module includes: such as the driver circuit, driver circuit unit, driver circuit board, etc. in some embodiments of the present application). Correspondingly, in another embodiment of the present application, there is also provided a tag light, comprising: the light-emitting device according to any one of the embodiments of the present application, the light-emitting body is a surface light source, and the cavity and the mounting portion are fixedly disposed beside a light-emitting surface of the light-emitting body.

Optionally, the light emitter may also include, for example, a transparent/translucent, single-sided or double-sided display (flexible) LED display screen, etc., without being limited to a LED light bar.

Optionally, in the hanging piece marker lamp of some embodiments, the light emitting body further includes a light emitting bar mainly made of LED beads, and a marker plate. The sign board is made of light guide materials, and sign patterns are arranged on one side/two sides of the sign board; and the cavity is columnar, an installation part is arranged outside the cavity along the axis direction, and the first side edge of the sign board and the light-emitting lamp strip are assembled in the installation part and optically coupled or/jointed. If the explosion-proof joint surfaces at the two ends of the columnar cavity are threads, the cross sections at the two ends are circular. While the cross-section of the other hollow portion may, optionally, include without limitation: circular, square, oval, rectangular, etc.

And the overall shape of the cavity can be as follows: prismatic, square cylindrical, elliptic cylindrical. Correspondingly, the cavity interior may be formed as a tubular cavity structure.

Optionally, in the tab marker light of some embodiments, the mounting portion includes a first groove concavely formed on an outer surface of the mounting portion, the light bar is fitted to a bottom of the first groove, and a first side of the sign plate is fitted into the first groove.

Optionally, in the tab marker light of some embodiments, the mounting portion further includes a second groove disposed at a bottom of the first groove substantially perpendicular to the tab mounting groove, and communicated or spatially communicated with the first groove, and the light bar is disposed in the second groove; the first side edge of the sign board is detachably mechanically coupled to the first groove to approach, abut or engage the light bar. The light bar in the second groove emits light into the sign board from the first side edge, so that the sign is more clearly displayed. The other parts of the sign board except the first side edge extend towards the direction far away from the cavity.

Wherein the first slot, in other embodiments, may also be referred to as a mounting slot. The second slot, in other embodiments or also referred to as a card slot.

Optionally, in the tab marker lamp according to some embodiments, the dimension and/or shape of the outside of the cavity is equivalent to the first side edge, and the wall thickness of the cavity is not less than 2mm, so that the tab marker lamp has explosion-proof strength.

Optionally, in the tag light of some embodiments, the cross-sectional dimension of the cavity (e.g. in a direction perpendicular to the axis of the explosion-proof plug) is larger than the cross-sectional dimension of the mounting portion. The larger size of the cavity portion, particularly the thicker wall thickness, may enhance the explosion-proof performance. The size/dimension of the mounting part is small, so that the manufacturing material of the cavity can be saved, and the viewing experience of a viewer is not reduced due to the mounting part when the hanging piece marker light is hung, for example, the sight of the viewer is blocked to a certain extent or the visual focusing of the viewer on the marker board is reduced. The cross section of the cavity is basically square with a round hollow shape, and the cross section of the mounting part is T-shaped; the cavity, the clamping groove and the chip mounting groove are integrally formed; on the cross section of the circular hollow part, the cross sections of the second groove and the first groove are sequentially arranged.

Optionally, in the tag light with hanging piece of some embodiments, the tag board is rectangular and is fastened and connected to the cavity by screws penetrating through two side walls of the chip mounting groove and the first side edge; the cavity, the first side edge and the light bar are substantially equivalent in length; the lengths of the light-emitting lamp strip and the cavity are 80% -120% of the length of the first side edge respectively.

Optionally, in the tab marker light of some embodiments, the tab marker light further includes two T-shaped rubber blocking plates plugged at two ends of the mounting portion; notches are respectively formed in two ends of the first side edge of the sign plate to be matched with the glue blocking plates; and; and sealant is filled between the rubber baffle plate and the light-emitting lamp bar.

The embodiment of the utility model provides an above-mentioned technical scheme's beneficial effect includes at least:

the embodiment of the utility model provides an among the light source driver, illuminator and emergency marker lamp and emergency lighting marker lamp, contained inclosed cavity that has drive circuit board (for the drive light source is luminous), the electric arc that probably produces with electronic components on the drive circuit board, spark or red-hot surface seal inside the cavity, thereby isolated electric arc that drive circuit probably produced, contact of spark and red-hot surface and outside inflammable and explosive gas and dust etc, thereby avoided the risk of exploding in the lighting apparatus outside and inside production, when providing fire control emergency indication for people, the safety of use place has also been ensured.

The embodiment of the utility model provides an in, for the cavity that makes sealed have dirver circuit board has good flame proof performance, the material of this cavity can use the metal for its structural strength can bear the huge pressure that the inside explosion of cavity produced, and, still overlap in dirver circuit board outside and establish the insulating tube, can play dirver circuit's insulating effect, and the cavity that prevents inside electricity that produces from passing through the metal material conducts to the cavity outside.

To sealed cavity that has drive circuit board, the embodiment of the utility model provides an adopted the both ends in the inside tubulose chamber of mode seal chamber of flame proof end cap, form the first holding chamber that is used for placing the light source drive plate, sealed effect is better, and, use first flame proof end cap of holding screw fixation and/or second flame proof end cap on the radial direction in first holding chamber, the screw thread of avoiding first flame proof end cap and second flame proof end cap takes place to trip on the axial direction under the effect of inside explosion pressure, thereby lose airtight effect, sealed effect has further been reinforceed.

In order to better wire distribution and guarantee the sealing performance of the light source driving board in the cavity, a first wire passing hole can be formed in the first explosion-proof plug, and a lead is led out from the sealed cavity to be connected with a power supply. In addition, in order to make the appearance look neat and beautiful, the end part of the tubular cavity can be further provided with a cover body, the first explosion-proof plug is embedded in the tubular cavity, the wall of the cavity between the cover body and the first explosion-proof plug is provided with a second wire passing hole, and the lead is led out from the first wire passing hole and then is led out through the second wire passing hole to be connected with the light source.

The embodiment of the utility model provides a fill sealed glue in the second holding chamber between lid and first flame proof end cap, make the space of this lid and first flame proof end cap have waterproof, separate the electricity, to the explosion in the cavity keep apart and functions such as buffering once more.

The embodiment of the utility model provides an adopt the compound mode of L shape adapter and waterproof end cap at second flame proof end cap, use sealed circular cone pipe threaded connection at L adapter and tubulose chamber tip, and it is sealed with waterproof end cap, and the third line hole of crossing has still been seted up in L adapter and the waterproof end cap, the line hole is worn out to the lead wire accessible third that external power source is connected to the dirver circuit board, sealed circular cone pipe thread can play better sealed effect on the one hand, waterproof end cap has also guaranteed waterproof when conveniently walking the line, the effect of separate the electricity, on the other hand, the design of L shape adapter makes things convenient for the installation of lamps and lanterns, realize diversified installation requirement for example carry out the hanging, and the outward appearance is pleasing to the eye.

The embodiment of the utility model provides an among emergent marker light and the hanging piece marker light, the illuminator that will contain the drive circuit cavity of flame proof function sets up in the side of marking the body, makes overall structure compact when having the flame proof function, and thickness is less.

The embodiment of the utility model provides an among emergent marker light and the hanging piece marker light, mark the body except that the joint in the mounting groove, can also further be fixed with the cavity through the screw of wearing to locate mounting groove both sides wall and sign body, when the realization is marked the body and is interchangeable, also make the installation of marking the body more firm.

The embodiment of the utility model provides an among emergent marker light and hanging piece marker light, the baffle lock is in the tip in draw-in groove and mounting groove, mark the breach that has with the baffle adaptation on the body, the baffle still follows axial extension to draw-in groove in the lock tip, that part of its joint in the draw-in groove is located the breach and the butt is in marking the body, such design, the clean and tidy pleasing to the eye of outward appearance has been guaranteed on the one hand, on the other hand, not only can make the installation of baffle more firm, be difficult for droing, and the baffle butt is in marking the body, make the installation of marking the body more firm.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a light source driver according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of the light source driver along the axial direction of the cavity in the embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a first flameproof plug in the embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a second flameproof plug according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a light-emitting device according to an embodiment of the present invention;

fig. 6 is a cross-sectional view of the light emitting device along the axial direction of the cavity in the embodiment of the present invention;

fig. 7 is a schematic view of the overall structure of an emergency marker light in an embodiment of the present invention;

fig. 8 is an exploded view of the overall structure of an emergency marker light in an embodiment of the present invention;

fig. 9A and 9B are schematic structural views of emergency marker lights of two kinds of marker bodies in the embodiment of the present invention;

fig. 10 is a cross-sectional view of the emergency sign lamp along the radial direction of the cavity in the embodiment of the present invention;

fig. 11 is an enlarged view of a first wire passing hole in the embodiment of the present invention;

fig. 12 is a schematic view of an emergency marker light provided in the fourth embodiment of the present invention;

fig. 13A and 13B are schematic structural diagrams of a light-emitting device in an alternative embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention 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.

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 word "through" as used in this application may also be construed as "via" (via), depending on the context.

The present invention will be described in further detail below with reference to specific embodiments and with reference to the accompanying drawings.

The first embodiment is as follows:

an embodiment of the utility model provides a pair of light source driver, include: the cavity, the driving circuit board and at least one explosion-proof plug; wherein:

the driving circuit board is arranged in the first accommodating cavity.

The utility model discloses in, the quantity of shutoff piece can be one or more, and the opening on the corresponding cavity wall also can be one or more, and the sealed cavity that forms through the shutoff piece also can be one or more, the embodiment of the utility model provides a do not limit.

The driving circuit on the driving circuit board is a light source driving circuit for driving the light source to emit light, and can adopt any driving circuit mode, such as a driving circuit composed of a circuit unit and/or elements for realizing voltage transformation, voltage stabilization, inversion and charging (or a battery), etc., and the utility model discloses do not limit what kind of specific driving circuit mode is adopted.

The design of drive circuit in the cavity is sealed, with the electric arc that electronic components probably produced on the drive circuit board, spark or red-hot surface seal inside the cavity to isolated electric arc, spark and red-hot surface that drive circuit probably produced and the contact of outside flammable explosive gas and dust etc. thereby avoided producing the risk of explosion outside and inside at lighting apparatus, when providing the emergent instruction of fire control for people, also ensured the safety of using the place.

Referring to fig. 1 and 2, the light source driver 1 includes: cavity 11 and drive circuit board 12, drive circuit board 12 sets up in cavity 11.

The cavity 11 has a tubular cavity with two open ends, and the two open ends of the tubular cavity are sealed by the first explosion-proof plug 13 and the second explosion-proof plug 14, so that a sealed cavity is formed between the first explosion-proof plug 13 and the second explosion-proof plug 14, which is referred to as a first accommodating cavity 15 for convenience of description, and the driving circuit board 12 is disposed in the first accommodating cavity 15.

The tubular cavity may be generally tubular or tubular at both ends and have other cross-sectional shapes in the middle, such as prismatic, square-cylindrical, elliptical-cylindrical, etc.

First flame proof end cap 13 and second flame proof end cap 14 have a plurality ofly with tubulose chamber open-ended sealing mode, for example adopt threaded connection with sealed mode, the embodiment of the utility model provides a do not restrict.

In one or more possible embodiments, in order to better ensure the sealing property, the connection relationship between the first and second flameproof plugs 13 and 14 and the cavity wall is further strengthened and fixed, the utility model discloses the cavity wall of the cavity 11 of embodiment can also be provided with a first fastener, and this first fastener passes through the cavity wall, and the first and/or second flameproof plugs 13 and 14 and the cavity wall are fixedly connected.

For example, the first fastening member may be a set screw or other parts or units that can provide fixing, as shown in fig. 2, in an embodiment of the present invention, a set screw 16 is further disposed in the radial direction of the first accommodating cavity 15, and the set screw passes through the cavity wall to be in threaded connection with the first explosion-proof plug 13 and/or the second explosion-proof plug 14.

It should be noted that fig. 2 shows that the set screw passes through the cavity wall in a direction perpendicular to the radial direction of the first receiving cavity to be fixedly connected with the first explosion-proof plug 13 and/or the second explosion-proof plug 14, and this installation manner is merely an example, the present invention does not limit the angle at which the set screw passes through the cavity wall to be connected with the first explosion-proof plug 13 and/or the second explosion-proof plug 14, and in some cases, a manner of inclining a certain angle may also be adopted, and any angle for fastening the first explosion-proof plug 13 and/or the second explosion-proof plug 14 may be realized.

On the cavity, the set screw 16 may be disposed at a position corresponding to the first explosion-proof plug 13, or at a position corresponding to the second explosion-proof plug 14, or at positions corresponding to both the first explosion-proof plug 13 and the second explosion-proof plug 14.

For the cavity with the sealed driving circuit board, the two ends of the tubular cavity inside the cavity are sealed in the explosion-proof plug mode, a first containing cavity for placing the light source driving board is formed, the sealing effect is good, in addition, the first explosion-proof plug and/or the second explosion-proof plug are/is fixed by using a set screw in the radial direction of the first containing cavity, the threads of the first explosion-proof plug and the second explosion-proof plug can be prevented from being tripped in the axial direction under the action of the internal explosion pressure, the sealing effect is lost, and the sealing effect is further strengthened.

The embodiment of the utility model provides an in, the dirver circuit board among the light source driver can adopt wired connection, perhaps the mode of radio coupling, is connected with the power supply body (or called luminous body) of outside, realizes functions such as the power supply of luminous body, and under wireless connection's mode, then first flame proof end cap and second flame proof end cap need not to set up the line hole, and under wired connection's mode, then need set up the line hole.

For convenience of routing, referring to fig. 1 and 2, the first explosion-proof plug 13 is further provided with a first wire passing hole 131;

the first lead on the driving circuit board 12 extends out of the cavity 11 through the first wire passing hole 131.

Those skilled in the art can think that when the first explosion-proof plug 13 and the second explosion-proof plug 14 are plugged at two ends of the tubular cavity, the first accommodating cavity 15 is approximately equal to the part sealed by the first explosion-proof plug 13 and the second explosion-proof plug 14. In this case, the lead wire connected with the light source is led out from the end part of the first explosion-proof plug and directly extends out of the cavity.

In some embodiments, in order to make the appearance of the light fixture neat and beautiful, as shown in fig. 1 and 2, the light source driver may further include: a cover 17, wherein the cover 17 is buckled at the end part of the tubular cavity;

the first explosion-proof plug 13 is embedded in the tubular cavity, and a second accommodating cavity 18 is formed between the first explosion-proof plug and the cover body 17;

a second wire passing hole 181 is formed in the wall of the second accommodating cavity 18;

the lead wires of the driving circuit board 12 for connecting the light source pass through the first wire passing hole 131 and extend out of the cavity 11 through the second wire passing hole 181.

In order to enhance the explosion-proof, waterproof and insulating properties, optionally, the second accommodating cavity 18 may be filled with a sealant.

The second accommodating cavity 18 can be filled with sealant, and a sealing enhancement effect can be achieved for small gaps outside the lead in the first wire passing hole 131.

In this embodiment, the first flameproof plug 13 is not located at the end of the tubular cavity, but located at a position close to the end of the tubular cavity, and embedded in the tubular cavity, so that there may be a problem that the assembly is not easy to operate, and in order to overcome this problem, as shown in fig. 3, the first flameproof plug further has at least one mounting hole 132, and the arrangement manner of these mounting holes 132 can meet the requirement that an installation tool can clamp the first flameproof plug to screw.

In one or more possible embodiments, referring to fig. 1 and 2, the second flameproof plug 14 includes an L-shaped adapter 141 and a waterproof plug 142;

one end of the L-shaped adapter 141 is connected to the end of the tubular cavity by a sealing conical pipe thread 1411, and the other end is connected to the waterproof plug 142;

the L-shaped adapter 141 and the waterproof plug 142 have a third wire passing hole 1412 penetrating through both ends, and a second lead (not shown) on the driving circuit board extends out of the cavity through the third wire passing hole 1412.

Referring to fig. 4, the sealing cylindrical pipe thread 1411 of the L-shaped adapter 141 may also be used in cooperation with a hexagon socket screw 1413 nested in the L-shaped adapter, and when the L-shaped adapter 141 is screwed, it plays a role of tightening, so as to achieve the sealing function.

Alternatively, the seal cylinder Pipe Thread 1411 may employ a prior art U.S. standard NPT (national (American) Pipe Thread) Thread, such as NPT 1/2, NPT 3/8, or the like. The meshing length of the joint surface of the second explosion-proof plug and the cavity wall of the tubular cavity is more than or equal to 8mm, the number of the meshing buckles is more than or equal to 5, the meshing length is too short, and if the number of the meshing buckles is insufficient, the sealing performance is possibly poor, and the second explosion-proof plug is easy to release under larger gas pressure, so that the selection of the proper meshing length and the number of the meshing buckles needs to be comprehensively considered according to the upper limit of the gas pressure possibly borne, the difficulty degree of processing and assembling processes, the cost and the like.

The requirements of a joint surface of the first explosion-proof plug and a thread connected with the end part of the tubular cavity are similar to the requirements, preferably, the engagement length is more than or equal to 8mm, the number of the engagement buckles is more than or equal to 5, and specific numerical values can be comprehensively considered according to other pressures, the processing difficulty of the processing technology, the assembly difficulty, the cost and the like.

The waterproof plug 142 may be any plug having a waterproof function, and referring to the structure shown in fig. 1, the waterproof plug 142 may also be used in cooperation with the plastic gasket 143, when assembling, the plastic gasket 143 is placed at the installation position of the waterproof plug 142, the external power supply lead is led out from the L-shaped adapter 141 and the third wire passing hole 1412 on the waterproof plug 142, and then the waterproof plug 142 is screwed down, so that the plastic gasket 143 deforms, and a sealing effect is achieved.

It should be noted that the first lead and the second lead may be any lead that needs to be led out from the driving circuit board, and in one case, the first lead and the second lead are leads with different functions and respectively penetrate through the wire passing holes of the first flameproof plug and the second flameproof plug, for example, the first lead is a lead (or a wire) used for connecting a light source, the second lead is a lead (or a wire) used for connecting an external power source, or vice versa, the second lead is a lead (or a wire) used for connecting a light source, and the first lead is a lead (or a wire) used for connecting an external power source.

In another case, the first lead or the second lead may also be a combination of functionally different leads (of course the different leads are separated by an insulating sleeve depending on the requirements of electrical insulation);

for example, only one lead of the driving circuit board is provided, for example, the first lead is a combined line of a lead used for connecting a light source and a lead connected with an external power supply, and both are led out from the first explosion-proof plug, or the second lead is a combined line of a lead used for connecting a light source and a lead connected with an external power supply, and both are led out from the second explosion-proof plug. The combination line can be worn out in the single line hole of crossing of certain flame proof end cap, also can follow on this flame proof end cap a plurality of line holes of crossing also wear out respectively, the embodiment of the utility model provides a do not restrict.

The external power supply lead may be connected to various external power supplies such as a socket and a terminal of an ac power supply, and any connection method for connecting the external power supply may be used as the specific structure, which is not limited herein.

The embodiment of the utility model provides an in, the flame proof performance of cavity 11, electric arc will probably take place, the drive circuit board on electric spark and red-hot surface, with inflammable and explosive gas and dust etc. separately outside cavity 11, both need avoid the interior risk factor of cavity 11 to influence cavity external environment, explode in the external environment, the explosion that also need avoid probably producing in the cavity 11 simultaneously influences cavity external environment, consequently, there is considerable intensity requirement to the structure of the cavity wall of cavity 11, for example, need the cavity inside to bear fairly high gas pressure (for example 2 megapascals) also can not take place to burst.

In order to meet the structural strength requirement of the cavity, the material of the cavity is optionally metal or other high-strength material.

Under the condition that the material of the cavity wall of the cavity and/or the material of the first explosion-proof plug and/or the material of the second explosion-proof plug adopt metal, the drive circuit board is preferably subjected to insulation treatment due to the conductivity of the metal.

Referring to fig. 1 and 2, the light source driver 1 may further include: an insulating tube 19;

the insulating tube 19 is disposed in the first accommodating cavity 15 and is sleeved outside the driving circuit board 12.

The driving circuit board 12 is located inside the insulating tube 19, and the insulating tube is nested in the first accommodating cavity 15, so that the driving circuit board 12 does not directly contact the cavity wall of the first accommodating cavity 15, thereby realizing insulation.

Alternatively, in order to avoid the driving circuit board 12 from shaking inside the insulating tube 19 to affect the stability of the circuit, the driving circuit board may be fixed in the insulating tube 19 by, for example, gluing.

In order to further prevent the insulating tube 19 from driving the driving circuit board 12 to wholly shake inside the first accommodating cavity 15, which affects the stability of the whole structure, preferably, the length of the insulating tube 19 may be equal to or slightly smaller than the length of the first accommodating cavity 15, and the two ends of the insulating tube 19 may also be fixed in the first accommodating cavity 15 by, for example, glue fixing.

Of course, the embodiment of the present invention does not limit the fixing manner between the driving circuit board 12 and the insulating tube 19, and all the manners of insulation and stable non-shaking can be realized.

The material of the driving circuit cavity is aluminum alloy, and the wall thickness of the cavity is not less than 2 mm. The aluminum alloy can be integrally formed by stretching, and has the advantages of simple processing technology, higher compressive strength, bending resistance, deformation resistance and the like, and the detailed description is omitted.

Example two:

the embodiment of the utility model provides a still provide a light emitting device, this light emitting device includes: the driving circuit comprises a driving circuit cavity, a driving circuit board and a luminous body; wherein:

the driving circuit board is sealed in the driving circuit cavity;

the luminous body is electrically connected with the driving circuit board.

The light emitting body can be any structural unit or component capable of emitting light, such as a lamp tube, a lamp cap, an LED light bar, and the like.

The light may also be a transparent/translucent, single-or double-sided display (flexible) LED display screen or the like.

The above is merely an example, and the embodiments of the present invention do not limit the specific form of the light emitter.

Referring to fig. 5 and 6, the light emitting device 2 includes: the driving circuit comprises a driving circuit cavity 21, a driving circuit board 12 and a light-emitting lamp bar 22;

the driving circuit cavity 21 is internally provided with a sealed first accommodating cavity 15, and the driving circuit board 12 is arranged in the first accommodating cavity 15;

the cavity wall of the driving circuit cavity 21 is provided with a clamping groove 211, the clamping groove 211 is isolated from the first accommodating cavity 15, and the light-emitting lamp strip 22 is arranged in the clamping groove 211.

The embodiment of the utility model provides an in, can be with draw-in groove and drive circuit cavity integrated into one piece, also form the constitutional unit that the function is different on same cavity wall exactly, can make overall structure compacter like this, of course, technical personnel in the field can think, with the drive circuit cavity, with the casing separation design that forms the draw-in groove, multiple possible modes such as accessible bolt, welding, hinged joint are connected between the two.

The length of the light bar 22 is shorter than the length of the slot 211, and the two are equal or nearly equal.

In order to better fix the light bar 22, when the light bar is inserted into the slot 211 for fixing, glue (not shown) may be coated on the back of the light bar 22, so that it is fixed in the slot 211 without shaking. Of course, other means of securing may be used.

Optionally, the light bar may be further sealed with epoxy resin to further enhance electrical insulation.

Referring to fig. 5, the light-emitting device 2 further includes: a baffle 23;

baffle 23 can set up in the tip of draw-in groove or set up in the both ends of draw-in groove simultaneously, at least partially lock in the tip of draw-in groove 211, and it has sealed glue to fill between baffle 23 and light bar 22, also can play insulating, sealed and prevent into effects such as water when carrying out the reinforcement to light bar 22.

The baffle 23 also plays a role in shielding the ends of the clamping groove and the light bar, so that the light-emitting device is neat and attractive in appearance.

Similar to the embodiment, optionally, the driving circuit cavity 21 further includes: a first explosion-proof plug 13 and a second explosion-proof plug 14;

a tubular cavity with two open ends is arranged in the driving circuit cavity 21;

the first explosion-proof plug 13 and the second explosion-proof plug 14 are respectively in threaded connection with two ends of the tubular cavity to form a first accommodating cavity 15.

Similar to the embodiment, optionally, the first explosion-proof plug 13 is provided with a first wire passing hole 131;

the conductive wires on the driving circuit board 12 for connecting the light bar 22 pass through the first wire holes 131 and are electrically connected to the light bar 22.

Similar to the embodiment, optionally, the driving circuit cavity 21 further includes: the cover body 17, the cover body 17 is buckled on the end part of the tubular cavity;

the first explosion-proof plug 13 is embedded in the opening of the tubular cavity, and a second accommodating cavity 18 is formed between the first explosion-proof plug and the cover body 17;

the conductive wires on the driving circuit board 12 for connecting the light bar 22 pass through the first wire passing holes 131 and are electrically connected to the light bar 22 through the second wire passing holes 181.

Similar to the embodiment, optionally, the second receiving cavity 18 may be filled with a sealant.

Optionally, the second wire passing hole 181 penetrates through the end of the tubular cavity, so that a wire led out from the first explosion-proof plug 13 is smoothly connected with a light-emitting lamp bar in the clamping groove when the assembly is convenient.

Similar to the embodiment, optionally, the second explosion-proof plug 14 includes an L-shaped adapter 141 and a waterproof plug 142;

one end of the L-shaped adapter 141 is connected with the end part of the tubular cavity through a sealing conical pipe thread, and the other end is connected with the waterproof plug 142;

the L-shaped adapter 141 and the waterproof plug 142 are provided with third wire through holes 1412 penetrating through two ends; the external power lead on the driving circuit board penetrates out of the third wire through hole 1412.

Similar to the embodiment, the cavity wall of the driving circuit cavity and/or the first explosion-proof plug and/or the second explosion-proof plug are made of metal, and the driving circuit cavity 21 further includes: an insulating tube 19;

The material of insulating tube 19 can be plastics, rubber, resin, glass etc. and have insulating properties, the embodiment of the utility model provides a do not limit.

The material of the cavity wall of the driving circuit cavity can be aluminum alloy, and the wall thickness of the cavity is not less than 2 mm.

The embodiment of the utility model provides a still provide a light-emitting device, include: the driving circuit comprises a driving circuit cavity, a driving circuit board and a luminous body;

different from the light-emitting device, the driving circuit board and the light-emitting body are sealed in the driving circuit cavity, and the driving circuit board is electrically connected with the light-emitting body;

in order to ensure that the light emitted by the luminous body can be emitted out of the driving circuit cavity, at least part of the driving circuit cavity in the luminous device is light-permeable.

The driving circuit cavity can be wholly permeable to light, for example, the whole body is made of transparent or semitransparent high-strength materials, and the cavity can be permeable to light only at the position corresponding to the light-emitting part of the luminous body.

The utility model discloses among the first kind of illuminator of embodiment, because the characteristics of drive circuit self, produce electric arc, electric spark or red-hot surface easily, consequently seal it in a chamber that has the flame proof function, and the circuit characteristic of luminous body part is low voltage low current usually, just can adapt to the demand of flame proof environment through simple sealed processing, consequently, keep apart drive circuit and luminous body, when can satisfying the flame proof performance, also make the volume of product as little as possible.

In the second kind of light emitting device of the embodiment of the utility model, the driving circuit and the luminous body are arranged in a sealed cavity, and based on the light emitting demand of the luminous body, the cavity wall is designed to be at least partially light-permeable, so that the effect of simultaneously flame-proof for the driving circuit and the luminous body can be realized.

Example three:

the embodiment of the utility model provides a pair of emergent marker light 3, it is shown with reference to figure 7 and figure 8, include: a light emitting device 31 and a sign body 32.

The specific structure of the light emitting device 31 can be described with reference to the structures of the first and second embodiments, and will not be described in detail here.

For example, the structure of the light emitting device 31 includes a driving circuit cavity 21, a driving circuit board 12, a light emitting body (e.g., a light bar 22), and the like, wherein the driving circuit board 12 is disposed in the driving circuit cavity 21, and the driving circuit board 12 and the light bar 22 are isolated from each other by a cavity wall.

In the embodiment of the present invention, the light emitting device 31 is connected to the sign body 32 and is disposed on one side of the sign body.

The sign body may be only the light guide plate 322 with the sign pattern (for example, as shown in fig. 9A), or may be an assembly (not including an electrical part) composed of the light guide plate and the indication pattern (sign film, sign board, etc.), and in one possible embodiment, in order to increase the structural performance of the sign body and satisfy the requirement of aesthetic degree, as shown in fig. 9B, the sign body 32 may include: a metal case 321 and a light guide plate 322 wrapped by the metal case; the metal case 321 has a hollow pattern corresponding to the mark.

The light guide plate 322 absorbs the light emitted from the lamp by using its own plate, stays on the surface of the plate, and when the light is emitted to each light guide point, the reflected light is diffused toward each angle, and then the reflected light is emitted from the front surface of the light guide plate by destroying the reflection condition. The light guide plate can uniformly emit light through various light guide points with different densities and sizes. The light guide plate can be made of optical acrylic plates, and the structure of the light guide plate is not limited by the utility model.

The metal box can be designed into holisticly, and the light guide plate is inserted by one side, but perhaps separates two parts of lock each other, and the light guide plate steps up between two parts, perhaps designs into hinged joint's lid and box body, but the light guide plate steps up modes such as between the lid of lock and box body, the embodiment of the utility model provides a do not limit to this.

The material of metal box can adopt pleasing to the eye durable materials such as stainless steel, aluminum alloy, the embodiment of the utility model provides a do not restrict.

The sign body can be single face demonstration sign pattern, also can be the two sides and all show sign pattern, the embodiment of the utility model provides a do not restrict.

Optionally, referring to fig. 7 and 8, a mounting groove 212 is further formed on a cavity wall of the driving circuit cavity 21 in the light-emitting device 31; the chip mounting groove 212 is spatially communicated with the card slot 211;

one side of the sign body 32 is clamped in the sheet-loading groove 212 and detachably connected with the light-emitting device 31.

The mounting groove 212 is spatially communicated with the clamping groove 211, and the light of the light-emitting lamp bar can reach the mark body in the clamping groove under the conditions that the mounting groove is completely communicated with the clamping groove in space and is partially communicated with the clamping groove.

Set up illuminator in a side of sign body, for current lamp house formula emergency indication marker light (will sign the body, drive circuit and luminous lamp strip all set up within same casing or frame), can satisfy the requirement of flame proof on the one hand, on the other hand is owing to all set up drive circuit and luminous body in the same one side of sign body, structurally, it is thinner relatively, the volume is littleer, sign the body under the condition of only light guide plate, can show and be close transparent or translucent effect, the pleasing to the eye degree of emergency marker light has been strengthened.

Fig. 10 is a cross-sectional view of the emergency marker lamp along the radial direction of the cavity, and it can be seen from fig. 10 that, in the emergency marker lamp, the driving circuit cavity 21, the driving circuit board 12, the card slot 211, the light-emitting strip 22 in the card slot 211, the mounting slot, and the marker body 32 clamped in the mounting slot are sequentially arranged in the longitudinal direction, so that the emergency marker lamp has a thin overall structure and a compact structure.

The shapes of the clamping groove 211 and the mounting groove 212 can be determined according to the shapes and sizes of the side edges of the light-emitting lamp strip and the sign body, as shown in fig. 10, the whole cross sections of the clamping groove 211 and the mounting groove 212 are in a T shape (the upper part is wide and the lower part is narrow, the upper part meets the width of the light-emitting lamp strip, and the lower part meets the width of a card), of course, if the light strip is narrow enough, and the sign body is thick enough, the light strip and the sign body can be integrated (also can be called as an installation part in a unified way), namely, a groove with a straight-shaped cross section is formed, and the light-emitting lamp strip and the sign body are arranged in the groove. Or vice versa, forming an "inverted T" cross-sectional shape is also one of the possible embodiments. The technical personnel in the field can set up the structure of draw-in groove 211 and dress piece groove 212 according to the shape and the structure of light strip and sign body, and it can to satisfy light on the light strip via a side incident light guide plate of light guide plate, and then by the light guide plate scattering.

Use the sign body to be the rectangle as an example, a side of sign body can be length direction's a side, also can be the ascending side of width direction, the embodiment of the utility model provides a do not restrict.

Optionally, referring to fig. 8, the side of the sign body 32 clamped on the sheet-loading groove 212 is further connected to the sheet-loading groove 212 by screws 213 penetrating through two side walls and the side of the sheet-loading groove 212.

By adopting the mode of the screw 213, the structural firmness of the sign body and the sheet containing groove is strengthened, and meanwhile, the sign body can be replaced and is convenient to detach, so that the same light-emitting device can be matched with different sign bodies.

If the sign body is not replaceable, the screws 213 may be replaced with rivets, or other similar means of secure attachment.

Optionally, the baffle 23 in the light-emitting device 31 is fastened to the end portions of the card slot 211 and the mounting slot 212, the side edge of the sign body 32 further has a notch 323 adapted to the baffle 23, and a portion of the baffle 23 extending into the card slot 211 is located in the notch 323 and abuts against the sign body 32;

the clamping groove 211 and the loading groove 212 are perpendicular to each other, and the baffle 23 is in a T shape corresponding to the ends of the clamping groove 211 and the loading groove 212.

The blocking plate 23 may be disposed at one end or both ends of the card slot 211 and the card loading slot 212. The baffle 23 is not only used for shielding the sealant between the light bar and the baffle to keep the appearance of the lamp neat and beautiful, but also can be abutted against the sign body 32 to further make the sign firmly installed, and meanwhile, a part of the baffle 23 is also clamped by the clamping groove 211 and the mounting groove 212, so that the baffle is not easy to fall off, and the overall durability is improved.

Optionally, in the embodiment of the present invention, for the convenience of routing and assembling, refer to fig. 11, and at the end of the tubular cavity of the driving circuit cavity 21, the first end of the wire passing hole 131 has run through the wall of the tubular cavity, so that during assembling, the lead wire is conveniently connected with the light emitting bar in the clamping groove 211 below the lead wire.

As shown in fig. 7 and 8, in order to facilitate various mounting modes of the emergency marker lamp, such as hanging, wall hanging, and the like, the emergency marker lamp 3 may further include: any one or combination of first wall mount fitting 33, second wall mount fitting 34 and hanger mount fitting 35; wherein:

the first wall-mounted mounting fitting 33 or the lifting mounting fitting 35 is detachably connected with the top of the light-emitting device;

the second wall-mounted fitting 34 is detachably connected to an adapter (L-adapter 141) in the lighting device.

When in hoisting, the hoisting device can be suspended on a building in a metal chain, a steel wire rope, a pull rod and other modes.

When the wall is hung, the two ends of the wall can be fixed on the building, for example, the first wall-hanging installation fitting 33 is hung on a screw on the wall by using a screw hole; the installation mode of hanging at one end and suspending at one end can also be used, for example, the mode of fixing the hanging installation fitting 35 with a building and suspending at the other end is used.

Of course, the present invention is not limited to the installation of the above-mentioned installation fittings and the corresponding installation method, and the number of the installation fittings is not limited.

In order to conveniently disassemble and assemble the installation accessories, the bottom of the first wall-mounted installation accessory 33 and the bottom of the hoisting installation accessory 35 are respectively provided with a bending part 331 and a bending part 351, a corresponding sliding groove is formed in the top of the cavity of the light-emitting device, the first wall-mounted installation accessory 33 and the hoisting installation accessory 35 can use the bending parts and are inserted into the sliding groove, and the first wall-mounted installation accessory can slide at any position in the sliding groove.

Of course, the first wall-mounted mounting fitting 33 and the second wall-mounted mounting fitting 34 may also be connected to the top of the light-emitting device by screws or other methods, which is not limited in the embodiment of the present invention.

Example four:

the embodiment of the utility model provides a pair of emergent marker light, it is shown with reference to figure 12, this emergent marker light, include: a light source driver 1 and an emergency sign 4 connected with the light source driver 1; wherein: the structure of the light source driver 1 can refer to the first embodiment;

the emergency sign board 4 comprises: a housing having at least one see-through window, at least one sign panel, at least one light source plate and a light guide plate;

at least one light source plate is arranged on at least one side edge of the light guide plate;

the driving circuit board in the light source driver is electrically connected with at least one light source board.

The emergency signboard can display signs on a single surface, so that only one sign panel is arranged, and the sign panel and the light guide plate are sequentially arranged in the cavity. The emergency signboard can also display signs on two sides, two sign panels are needed at the moment, and the light guide plate is clamped between the two sign panels.

The light source board can adopt a light-emitting lamp strip which is arranged on at least one side edge of the light guide board, for example, on two opposite length direction side edges.

Example five:

the embodiment of the utility model provides a pair of emergency lighting marker light unites two into one emergency lighting source and emergency marker light for emergency lighting source's circuit part also possesses the flame proof function. The emergency lighting marker lamp includes: the emergency lighting device comprises an emergency lighting light source and an emergency marker lamp, wherein a driving circuit of the emergency lighting light source is arranged in a driving circuit cavity in the emergency marker lamp. The structure of the emergency marker light can be referred to the description of the third embodiment or the fourth embodiment of the present invention.

A second set of alternative embodiments:

1. a light-emitting device, shown with reference to fig. 13A and 13B, comprising:

a cavity 1301 and a mounting portion 1302, which are relatively fixedly disposed;

the driving circuit board is sealed in the cavity 1301;

a light body mounted on the mounting portion 1302 and physically isolated from the driving circuit board by the cavity 1301;

the driving circuit board is electrically coupled with the light emitting body 1303 via/through the cavity.

Of course, in other embodiments, the cavity and the mounting portion may be physically separated/separated, and the relative fixation therebetween may be directly fixed and connected by the support body, or indirectly fixed and connected by a separate lamp housing/casing (this may also be understood as another support body 1304, refer to the cavity support body 13041 and/or the mounting portion support body 13042 in fig. 13A).

2. The light-emitting device according to embodiment 1,

the cavity 1301 comprises at least one opening and at least one plugging piece, and the at least one plugging piece is correspondingly plugged to the at least one opening through an explosion-proof joint face;

the driving circuit board is connected to the light-emitting body through a lead 1306 passing through the at least one blocking piece;

and the external power supply lead connected to the driving circuit board penetrates out of the cavity through the at least one plugging piece.

3. The lighting device of embodiment 2, wherein the at least one closure comprises a first closure and the at least one opening comprises a first opening;

the first plugging piece is provided with a first wire passing hole and/or a third wire passing hole,

the lead and the external power supply lead are respectively arranged through the first wire passing hole and the third wire passing hole; alternatively, the lead wire and the external power supply lead wire are commonly/collectively inserted through the first wire passing hole.

4. The light-emitting apparatus according to embodiment 3, wherein the at least one closure comprises a first closure and a second closure, and the at least one opening comprises a first opening and a second opening;

the first blocking piece and the second blocking piece are respectively provided with the first wire passing hole and the third wire passing hole,

the wire and the external power supply lead are respectively arranged through the first wire passing hole and the third wire passing hole.

5. The light-emitting device according to embodiment 3 or 4, wherein the cavity further includes a cover covering the first opening;

the first blocking piece is integrally sunk into the cavity from the first opening so as to be spaced from the cover body;

a second wire passing hole is formed in the cavity wall of the cavity between the cover body and the first plugging piece;

the wire passes through the first wire passing hole and is electrically connected between the driving circuit board and the luminous body through the second wire passing hole.

6. The light-emitting device according to embodiment 5, wherein a sealant is filled between the cover and the first flameproof plug.

7. The light-emitting device according to embodiment 5, wherein,

the first blocking piece and the second blocking piece are respectively a first explosion-proof plug and a second explosion-proof plug; the first explosion-proof plug and the second explosion-proof plug are respectively in threaded connection with the first opening and the second opening.

8. The light-emitting device according to embodiment 7, wherein the second wire through hole has a groove shape and is provided so as to penetrate or open in the direction of the cover.

9. The light-emitting device according to embodiment 8, wherein,

the first plugging piece or the second plugging piece comprises an adapter and a waterproof plug;

one end of the adapter is connected with the second opening through a sealing conical pipe thread, and the other end of the adapter is connected with the waterproof plug;

the third wire passing hole is formed in the adapter and the waterproof plug in a penetrating mode.

10. The light-emitting device according to any one of embodiments 1 to 9, wherein the cavity is formed integrally with the mounting portion.

11. The light-emitting device according to embodiment 10, wherein the cavity is made of a metal material, and the cavity further includes an insulating tube sleeved on the driving circuit board.

12. A ceiling tile marker light, comprising: the light-emitting device according to any one of embodiments 1 to 11, wherein the light-emitting body is a surface light source, and the cavity and the mounting portion are fixedly provided beside a light-emitting surface of the light-emitting body; and the luminous body further comprises a luminous lamp strip arranged on the mounting part.

13. The tag light of embodiment 12, wherein the light emitter further comprises a sign plate; the sign board is made of light guide materials, and sign patterns are arranged on one side/two sides of the sign board; and

the cavity is columnar, an installation part is arranged outside the cavity along the axis direction, and the first side edge of the sign board and the light-emitting lamp strip are assembled in the installation part in an optical coupling mode.

14. The hanging piece marker light of embodiment 13, wherein the mounting portion includes a first groove concavely formed in an outer surface of the mounting portion, the light bar is attached to a bottom portion of the first groove, and a first side edge of the marker plate is fitted into the first groove.

15. The tag light of embodiment 14, wherein the mounting portion further comprises a second groove disposed at the bottom of the first groove substantially perpendicular to the first groove, the second groove being in communication with the first groove, the light bar being disposed in the second groove;

the first side edge of the sign board is detachably and mechanically coupled to the first groove so as to be close to/abutted against the light-emitting lamp bar; the other parts of the sign board except the first side edge extend towards the direction far away from the cavity.

16. The hanging piece marker light of embodiment 12, the dimension and/or shape of the outside of the cavity is equivalent to the first side, the wall thickness of the cavity is not less than 2mm, and the explosion-proof intensity is achieved.

17. The tag lamp according to

embodiment

12 or 13, wherein the cross-sectional size of the cavity is larger than the cross-sectional size of the mounting portion;

the cross section of the cavity is basically square with a round hollow shape, and the cross section of the mounting part is T-shaped; the cavity, the first groove and the second groove are integrally formed; on the cross section of the circular hollow part, the cross sections of the second groove and the first groove are sequentially arranged.

18. The tag light of embodiment 13, wherein the sign board is rectangular and is fastened and connected to the cavity by screws inserted through both side walls of the mounting groove and the first side edge; the cavity, the first side edge and the light bar are substantially equivalent in length; the lengths of the light-emitting lamp strip and the cavity are 80% -120% of the length of the first side edge respectively.

19. The tag light of embodiment 15, further comprising two T-shaped rubber stoppers that are plugged at both ends of the mounting portion; notches are respectively formed at two ends of the first side edge of the sign board so as to be matched with the rubber baffle; and;

and sealant is filled between the rubber baffle plate and the light-emitting lamp bar.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A light source driver, comprising: the driving circuit board is arranged in the cavity;

the driving circuit board is arranged in the first accommodating cavity.

2. The light source driver according to claim 1, wherein the cavity has a tubular cavity open at both ends; the at least one closure member comprises: the first explosion-proof plug and the second explosion-proof plug;

3. The light source driver as claimed in claim 2, wherein the cavity wall is provided with a first fastener, and the fastener passes through the cavity wall to fixedly connect the first explosion-proof plug and/or the second explosion-proof plug with the cavity wall.

4. The light source driver as claimed in claim 2, wherein the first explosion-proof plug is provided with a first wire through hole;

5. The light source driver of claim 4, further comprising: the cover body is buckled at the end part of the tubular cavity;

6. The light source driver according to claim 5, wherein a sealant is filled in the accommodating cavity.

7. The light source driver of claim 2, wherein the second flameproof plug comprises: the waterproof plug comprises an L-shaped adapter and a waterproof plug;

8. The light source driver according to any of claims 1-7, wherein the material of the cavity wall and/or the block piece is a metal, the light source driver further comprising: an insulating tube;

9. A light-emitting device, comprising: the driving circuit comprises a driving circuit cavity, a driving circuit board and a luminous body;

the driving circuit board is sealed in the driving circuit cavity;

the luminous body is electrically connected with the driving circuit board.

10. The lighting device of claim 9, wherein said light emitter is a light bar;

11. The light-emitting device according to claim 10, wherein the driving circuit chamber further comprises: the first explosion-proof plug and the second explosion-proof plug;

a tubular cavity with two open ends is arranged in the driving circuit cavity;

12. The lighting device according to claim 11, wherein the first explosion-proof plug is provided with a first wire through hole;

13. The light-emitting device according to claim 12, wherein the driving circuit cavity further comprises: the cover body is buckled at the end part of the tubular cavity;

14. The light-emitting device according to claim 13, wherein a sealant is filled in the second cavity.

15. The light emitting apparatus of claim 13, wherein the second wire passing hole passes through an end of the tubular cavity.

16. The lighting device according to claim 11, wherein the second flameproof plug comprises an L-shaped adapter and a waterproof plug;

17. The light-emitting apparatus according to any one of claims 10 to 16, further comprising: a baffle plate;

18. The light-emitting device according to any one of claims 11 to 16, wherein the cavity wall of the driving circuit cavity and/or the first explosion-proof plug and/or the second explosion-proof plug are made of metal, and the driving circuit cavity further comprises: an insulating tube;

19. The light-emitting device according to claim 18, wherein the material of the cavity wall of the driving circuit cavity is an aluminum alloy, and the wall thickness of the cavity is not less than 2 mm.

20. A light-emitting device, comprising: the driving circuit comprises a driving circuit cavity, a driving circuit board and a luminous body;

the drive circuit cavity is at least partially light permeable.

21. An emergency marker light, comprising: the light emitting device and sign body of any one of claims 9-20.

22. An emergency marker light of claim 21 wherein said light means is connected to said marker body and is disposed on a side of said marker body.

23. The emergency marker light of claim 22 wherein the chamber wall of the driving circuit chamber in the light emitting device further defines a mounting slot; the chip mounting groove is communicated with a clamping groove space formed in the cavity wall of the driving circuit cavity;

24. The emergency marker light of claim 23 wherein the side edge of the sign body that is snapped onto the mounting groove is further connected to the mounting groove by screws that pass through both side walls of the mounting groove and the side edge.

25. The emergency marker light of claim 24 wherein the light emitting device further comprises a baffle plate fastened to the ends of the card slot and the mounting slot, the side of the sign body further having a notch adapted to the baffle plate, the portion of the baffle plate extending into the card slot being located in the notch and abutting against the sign body;

26. An emergency marker light of any of claims 21 to 25 further comprising: any one or combination of a first wall-mounted installation accessory, a second wall-mounted installation accessory and a hoisting installation accessory;

27. An emergency marker light of any of claims 21 to 25 wherein the marker body is a light guide plate having a marker pattern; or

28. An emergency marker light, comprising: the light source driver of any one of claims 1-8 and an emergency sign connected to the light source driver;

29. An emergency lighting marker light, comprising: an emergency light source and an emergency marker light as claimed in any of claims 21 to 28, the drive circuit of the emergency light source being disposed within a drive circuit cavity in the emergency marker light.

30. A light-emitting device, comprising:

the cavity and the mounting part are relatively fixedly arranged;

the driving circuit board is sealed in the cavity;

the luminous body is assembled on the mounting part and is physically isolated from the driving circuit board through the cavity;

the driving circuit board is electrically coupled with the luminous body through the cavity.

31. The light-emitting apparatus according to claim 30,

the cavity comprises at least one opening and at least one plugging piece, and the at least one plugging piece is correspondingly plugged in the at least one opening through the flameproof joint face;

the driving circuit board is connected to the luminous body through a lead wire penetrating through the at least one blocking piece;

32. The light-emitting apparatus according to claim 31, wherein the at least one closure comprises a first closure and the at least one opening comprises a first opening;

33. The light-emitting apparatus according to claim 32, wherein the at least one opening further comprises a second opening; the at least one blocking piece further comprises a second blocking piece which blocks the second opening;

the first wire through hole is arranged on the first plugging piece, the third wire through hole is arranged on the second plugging piece,

34. The light-emitting device according to claim 32 or 33, wherein the cavity further comprises a cover covering the first opening;

the wire penetrates through the first wire passing hole and is electrically connected between the driving circuit board and the luminous body through the second wire passing hole.

35. The lighting device of claim 34, wherein the flameproof engagement surface is a thread;

the first blocking piece and the second blocking piece are respectively a first explosion-proof plug and a second explosion-proof plug, and the first explosion-proof plug and the second explosion-proof plug are respectively in threaded connection with the first opening and the second opening.

36. The light-emitting device according to claim 35, wherein a sealant is filled between the cover and the first flameproof plug.

37. The light-emitting device according to claim 36, wherein the second wire through hole has a groove shape and is provided to penetrate or open in a direction of the cover.

38. The light-emitting apparatus according to claim 37,

39. The lighting device as defined in any one of claims 30-33, wherein the cavity is integrally formed with the mounting portion.

40. The light-emitting device according to claim 34, wherein the cavity is integrally formed with the mounting portion.

41. The light-emitting device according to claim 35, wherein the cavity is integrally formed with the mounting portion.

42. The light-emitting device according to claim 36, wherein the cavity is integrally formed with the mounting portion.

43. The light-emitting device according to claim 37, wherein the cavity is integrally formed with the mounting portion.

44. The light-emitting device according to claim 38, wherein the cavity is integrally formed with the mounting portion.

45. The light-emitting device according to claim 39, wherein the cavity is made of a metal material, and the cavity further comprises an insulating tube sleeved on the driving circuit board.

46. The light-emitting device according to claim 40, wherein the cavity is made of a metal material, and the cavity further comprises an insulating tube sleeved on the driving circuit board.

47. The light-emitting device according to claim 41, wherein the cavity is made of a metal material, and the cavity further comprises an insulating tube sleeved on the driving circuit board.

48. The light-emitting device according to claim 42, wherein the cavity is made of a metal material, and the cavity further comprises an insulating tube sleeved on the driving circuit board.

49. The light-emitting device according to claim 43, wherein the cavity is made of a metal material, and the cavity further comprises an insulating tube sleeved on the driving circuit board.

50. The light-emitting device according to claim 44, wherein the cavity is made of a metal material, and the cavity further comprises an insulating tube sleeved on the driving circuit board.

51. A ceiling tile marker light, comprising: the light-emitting device of any one of claims 30 to 50, wherein the light-emitting body is a surface light source, and the cavity and the mounting portion are fixedly arranged beside a light-emitting surface of the light-emitting body; and the luminous body further comprises a luminous lamp strip arranged on the mounting part.

52. The tag light of claim 51, wherein the light further comprises a sign board; the sign board is made of light guide materials, and sign patterns are arranged on one side/two sides of the sign board; and

53. The tag light of claim 52, wherein the mounting portion includes a first groove concavely formed in an outer surface thereof, the light bar being fitted to a bottom of the first groove, and a first side of the sign board being fitted into the first groove.

54. The tag light of claim 53, wherein the mounting portion further comprises a second groove disposed substantially perpendicular to the first groove at a bottom of the first groove, in communication with the first groove, the light bar being disposed in the second groove;

55. The ceiling marker light of claim 52, wherein the dimension and/or shape of the outside of the cavity is equivalent to the first side, the wall thickness of the cavity is not less than 2mm, and the ceiling marker light has explosion-proof strength.

56. The tag light of claim 54, wherein the cross-sectional dimension of the cavity is larger than the cross-sectional dimension of the mounting portion;

the cross section of the cavity is basically square with a round hollow shape, and the cross section of the mounting part is T-shaped; the cavity, the first groove and the second groove are integrally formed; the circular hollow part, the second groove and the first groove are sequentially arranged on the cross section.

57. The tag light of claim 53, wherein the sign board is rectangular and is fastened to the cavity by screws passing through both side walls of the first slot and the first side edge; the cavity, the first side edge and the light bar are substantially equivalent in length; the lengths of the light-emitting lamp strip and the cavity are 80% -120% of the length of the first side edge respectively.

58. The tag light of claim 54, further comprising two T-shaped glue-blocking plates plugged at both ends of the mounting portion; notches are respectively formed at two ends of the first side edge of the sign board so as to be matched with the rubber baffle; and