CN217875782U - Sealing device for lighting equipment and lighting equipment thereof - Google Patents

Abstract

A sealing device for a lighting fixture and a lighting fixture thereof are disclosed, wherein the sealing device is capable of preventing fluid from flowing from an outer housing to a conductive member within the outer housing by blocking a passage between the outer housing and the conductive member. And the sealing device not only seals through the side part seal, but also seals through the end part seal so as to realize multi-directional sealing and improve the sealing performance of the sealing device.

Description

Sealing device for lighting equipment and lighting equipment thereof

Technical Field

The present application relates to the field of lighting technology, and more particularly, to a sealing device for a lighting apparatus and a lighting apparatus thereof.

Background

The sealing performance of the lighting device is an important performance characteristic of the lighting device, when the sealing performance of the lighting device is poor, fluid easily enters the inside of a shell of the lighting device, a circuit system of the lighting device can be damaged, the problems of circuit short circuit and the like are caused, and the normal function of the lighting device is influenced.

At present, in some lighting devices, the sealing performance is improved mainly by controlling the size of each part to control the gap between the parts, the processing requirements for each part are high, the precision matching between the parts is required, and even if the deformation of a single part occurs, the sealing performance can be affected. Even in some lighting devices, the housing only has a function of accommodating and fixing the components inside, and fluid can easily flow into the electronic components after entering the interior of the housing from the gap or the opening of the housing.

Therefore, a new sealing solution for lighting devices is needed to meet the sealing requirements.

Disclosure of Invention

An advantage of the present application is to provide a sealing device for a lighting apparatus and a lighting apparatus thereof, wherein the sealing device can prevent fluid from flowing from an outer case to a light emitting unit by blocking a passage between the outer case and the light emitting unit within the outer case.

Another advantage of the present application is to provide a sealing device for a lighting apparatus and a lighting apparatus thereof, wherein the sealing device is not only sealed by a side seal, but also sealed by an end seal, so as to realize multi-directional sealing, thereby improving the sealing performance of the sealing device.

It is still another advantage of the present application to provide a sealing device for a lighting apparatus and a lighting apparatus thereof, wherein the sealing device not only improves the sealing performance by blocking a passage between the outer case and the light emitting unit through a sealing member, but also further improves the sealing performance by pressing a cover body provided to the light emitting unit through a pressing member.

To achieve at least one of the above advantages or other advantages and objects, according to one aspect of the present application, there is provided a sealing apparatus for a lighting device, including:

a frame body including an outer case having a housing chamber and a first mounting base held in the housing chamber of the outer case;

a first light emitting unit mounted to the first mounting substrate;

a first cover body accommodated in the accommodating cavity of the outer shell and covering the first light-emitting unit; and

a first sealing member sealingly disposed between the first cover and the frame body;

the accommodating cavity of the outer shell and the first cover body are respectively provided with a first cavity opening corresponding to the first light-emitting unit and a first cover body opening opposite to the first cavity opening in direction, a first fluid channel is formed between the first cavity opening and the first mounting base body, and the first sealing element is arranged in the first fluid channel and is blocked between the first cavity opening and the first light-emitting unit so as to prevent fluid flowing into the first fluid channel from the first cavity opening from flowing to the first light-emitting unit.

In the sealing device for a lighting apparatus according to the present application, the first sealing member is sealingly disposed between the first cover and an inner wall of the receiving cavity of the outer housing.

In the sealing device for a lighting apparatus according to the present application, the first sealing member is sealingly provided between the first cover and the first mounting base.

In the sealing device for a lighting apparatus according to the present application, the first sealing member surrounds the first cover opening.

In the sealing device for a lighting apparatus according to the present application, the first sealing member is integrally coupled to the first enclosure such that the first sealing member and the first enclosure form a unitary structure.

In the sealing device for a lighting apparatus according to the present application, the sealing device for a lighting apparatus further includes at least one pressing member disposed between the outer case and the first cover, so that the first cover is pressed against the frame body in a thickness direction set by the sealing device for a lighting apparatus.

In the sealing apparatus for a lighting device according to the present application, the sealing apparatus for a lighting device further includes a second light emitting unit mounted on the first mounting base, a second cover covering the second light emitting unit, and a second sealing member, the housing cavity of the outer housing and the second cover respectively have a second cavity opening corresponding to the second light emitting unit and a second cover opening facing opposite to the second cavity opening, a second fluid channel is formed between the second cavity opening and the first mounting base, and the second sealing member is disposed in the second fluid channel and is blocked between the second cavity opening and the second light emitting unit to prevent the fluid flowing into the second fluid channel from the second cavity opening from flowing to the second light emitting unit.

In the sealing device for a lighting apparatus according to the present application, the second sealing member is sealingly disposed between the second cover and an inner wall of the receiving cavity of the outer case.

In the sealing device for a lighting apparatus according to the present application, the second sealing member surrounds the second cavity opening.

In the sealing device for a lighting apparatus according to the present application, the second sealing member is sealingly provided between the second enclosure and the first mounting base.

In the sealing device for a lighting apparatus according to the present application, the second sealing member is integrally coupled to the second housing such that the second sealing member and the second housing form a unitary structure.

In the sealing device for the lighting apparatus according to the present application, the first cover body has a first end portion and a second end portion which are opposite to each other, the sealing device for the lighting apparatus further includes a second mounting base body provided at the first end portion of the first cover body, the first end portion of the first cover body has a first end groove body, and the second mounting base body includes a base body main body having an outer peripheral portion closely attached to an inner wall of the first end groove body.

In the sealing device for a lighting apparatus according to the present application, the second mounting substrate includes at least one heat dissipation portion.

In the sealing device for a lighting apparatus according to the present application, the second mounting base further includes a shielding portion extending laterally outward from the base body to shield light rays emitted from the first light emitting unit and the second light emitting unit of the lighting apparatus toward the first end portion of the first cover.

In the sealing device for a lighting apparatus according to the present application, the second mounting substrate further includes at least one protrusion protruding from an outer surface thereof, an inner wall of the accommodating cavity of the outer housing has a limiting groove corresponding to the at least one protrusion, and the protrusion is limited in the limiting groove.

In the sealing device for a lighting apparatus according to the present application, the sealing device for a lighting apparatus further includes a cover body covering the second mounting substrate, and the cover body is fastened between the outer housing and the first cover body.

In the sealing apparatus for a lighting device according to the present application, the sealing apparatus for a lighting device further includes a third light emitting unit mounted to the second mounting substrate, a third sealing member, a third fluid passage being formed between the cover and the second mounting substrate, the third sealing member being disposed in the third fluid passage and being blocked between the cover and the second mounting substrate to prevent a fluid flowing from the cover into the third fluid passage from flowing to the third light emitting unit.

In the sealing device for a lighting apparatus according to the present application, the third sealing member surrounds the third light emitting unit of the second mounting substrate.

In the sealing device for the lighting apparatus according to the present application, the second end portion of the first cover body has a second end groove body, the sealing device for the lighting apparatus further includes a fourth sealing member formed at the second end groove body of the first cover body, and an outer peripheral portion of the fourth sealing member closely fits to an inner wall of the second end groove body.

According to another aspect of the present application, there is also provided a lighting device, comprising:

mounting a carrier;

a power supply unit held by the mounting carrier;

a sealing device as described above mounted to the mounting carrier; and

at least one light emitting unit electrically connected to the power supply portion, at least one of the at least one light emitting unit being mounted in the sealing device.

According to yet another aspect of the present application, there is also provided an assembling method of a sealing device for a lighting apparatus, including:

forming a first sealing body, wherein the first sealing body comprises a first enclosure and a first seal integrally formed with the first enclosure;

mounting a first mounting base body, a first light-emitting unit and a second light-emitting unit on the first mounting base body, wherein the first light-emitting unit is opposite to the second light-emitting unit, and the second light-emitting unit is covered in the first cover body to form a first sealing unit;

forming a second sealing body, wherein the second sealing body includes a second enclosure and a second seal integrally formed with the second enclosure;

installing the second sealing body in a containing cavity of an outer shell, wherein the containing cavity comprises a first cavity opening and a second cavity opening opposite to the first cavity opening, the second sealing body is installed in the containing cavity in an inverted manner from the second cavity opening, and the outer shell and the installation base body form a frame main body of the sealing device for the lighting equipment;

installing the first sealing unit in a containing cavity of the outer shell, wherein the first cover body is provided with a first cover body opening, and the first cover body is installed in the containing cavity in an inverted manner from the first cavity opening;

installing at least one pressing element between the first cover body and the accommodating cavity of the outer shell to press the first cover body to the frame body of the accommodating cavity of the outer shell in the thickness direction set by the outer shell;

mounting a third sealing member to the first sealing body, wherein the first enclosure has first and second opposite ends, the first sealing body further includes a second mounting base integrally formed at the first end of the first enclosure, a third light emitting unit is mounted to the second mounting base, and the third sealing member is mounted around the third light emitting unit;

mounting a cover between the outer housing and the first cover, wherein the cover is adjacent to the first end of the first cover, and the cover houses the third seal therein; and

a fourth seal is mounted to the second end of the first housing.

Further objects and advantages of the present application will become apparent from a reading of the ensuing description and drawings.

These and other objects, features and advantages of the present application will become more fully apparent from the following detailed description, the accompanying drawings and the claims.

Drawings

These and/or other aspects and advantages of the present application will become more apparent and more readily appreciated from the following detailed description of the embodiments of the present application, taken in conjunction with the accompanying drawings of which:

fig. 1 illustrates a perspective schematic view of a lighting device according to an embodiment of the present application.

Fig. 2 illustrates a schematic perspective view of a sealing arrangement of a lighting device according to an embodiment of the present application.

Fig. 3 illustrates an exploded schematic view of a sealing arrangement of a lighting device according to an embodiment of the present application.

Fig. 4 illustrates another exploded schematic view of a sealing arrangement of a lighting device according to an embodiment of the present application.

Fig. 5 illustrates a schematic cross-sectional view of a sealing arrangement of a lighting device according to an embodiment of the present application.

Fig. 6 illustrates a schematic cross-sectional view of a variant embodiment of the sealing means of the lighting device according to an embodiment of the present application.

Fig. 7 illustrates a partial schematic view of a sealing arrangement of a lighting device according to an embodiment of the present application.

Fig. 8 illustrates another partial schematic view of a sealing arrangement of a lighting device according to an embodiment of the present application.

Fig. 9 illustrates a further partial schematic view of a sealing arrangement of a lighting device according to an embodiment of the present application.

Fig. 10 illustrates yet another partial schematic view of a sealing arrangement of a lighting device according to an embodiment of the present application.

Fig. 11 illustrates an application scene schematic diagram of a lighting device according to an embodiment of the present application.

Fig. 12 illustrates another application scenario diagram of the lighting device according to the embodiment of the present application.

Fig. 13 illustrates a flow diagram of a method of assembling a sealing arrangement for a lighting device according to an embodiment of the present application.

Detailed Description

The terms and words used in the following specification and claims are not limited to the literal meanings, but are used only by the inventors to enable a clear and consistent understanding of the application. Accordingly, it will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present application are provided for illustration only and not for the purpose of limiting the application as defined by the appended claims and their equivalents.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

While ordinal numbers such as "first", "second", etc., will be used to describe various components, those components are not limited thereto. The term is used only to distinguish one element from another. For example, a first component can be termed a second component, and, similarly, a second component can also be termed a first component, without departing from the teachings of the present concepts. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, numbers, steps, operations, components, elements, or combinations thereof, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, elements, or groups thereof.

Various non-limiting embodiments of the present application will now be described in detail with reference to the accompanying drawings.

Schematic lighting device

As shown in fig. 1 to 12, a lighting device according to an embodiment of the present application is illustrated, wherein the lighting device comprises a main body portion and a light emitting portion mounted on the main body portion, wherein the light emitting portion comprises at least one light emitting unit, and in the embodiment of the present application, the design of the light emitting portion is special, therefore, a special sealing device 40 is configured for the special design of the light emitting portion to ensure the sealing performance of the light emitting portion, and thus the normal operation of the lighting device. Accordingly, the lighting device comprises a sealing means 40 mounted to the body portion, at least one of the light emitting units being mounted in the sealing means 40.

Specifically, in the present embodiment, the main body portion includes a mount carrier 10 and a power supply portion 20 held to the mount carrier 10. The mounting carrier 10 has at least one cavity for receiving components such as power supplies, electrical connections, etc., therein, protecting the components received therein, and providing mounting locations for the components.

As shown in fig. 1, the mounting carrier 10 has opposite front and rear end portions 110 and 120, and a portion of the mounting carrier 10 adjacent to the rear end portion 120 forms a base 11 of the lighting device. The mounting carrier 10 further comprises a clamping member 12 pivotably mounted to the base 11 to facilitate clamping or hanging of the lighting device on a railing, a rope, or the like. The clamping member 12 is switched between a folded state and an unfolded state during rotation relative to the base 11, the clamping member 12 being folded against the side wall of the mounting carrier 10 when the clamping member 12 is in the folded state, and the clamping member 12 being moved away from the side wall of the mounting carrier 10 when the clamping member 12 is in the unfolded state. In both the collapsed and expanded states, there is a gap between the clip 12 and the side walls of the mounting carrier 10, allowing foreign objects to pass through. When in the collapsed state, the space between the clip 12 and the side walls of the mounting carrier 10 is small, allowing for objects with small outer diameters. When in the deployed state, the clearance between the clip 12 and the side wall of the mount carrier 10 is increased, allowing objects of larger outer diameter to pass through.

The mounting carrier 10 further comprises a pivot shaft and a restoring element connected between the base 11 and the clamping member 12, the clamping member 12 is moved away from the side wall of the mounting carrier 10 by an external force, and when the external force is removed, the clamping member 12 automatically approaches the side wall of the mounting carrier 10 to restore to the folded state.

The power supply unit 20 includes at least one internal power supply and/or an electrical connector 23 to supply power to the light emitting unit through the internal power supply, or to supply power to the light emitting unit through an external power supply connected to the electrical connector 23. In a specific example of the present application, the internal power source includes a first power source 21 implemented as a dry battery and a second power source 22 implemented as a secondary battery, wherein the second power source 22 is electrically connected to the electrical connection port 23. In other specific examples of the application, the lighting device may be provided with different power supply configurations, for example, the internal power supply comprises only dry cells, or the internal power supply comprises only batteries, or no internal power supply.

When the lighting apparatus includes two or more light emitting units, different power supplies may be provided for the respective light emitting units, or a plurality of light emitting units may share the same power supply. That is, each power supply may be designed to supply power to a plurality of light emitting units, or may be designed to supply power only to a specific light emitting unit corresponding thereto.

The main body part further includes a control part electrically connected between the light emitting unit and the power supply part 20 for controlling electrical conduction of the light emitting unit. The control mode may be adjusted by devising an electrical connection relationship of each light emitting unit, and an electrical connection relationship between each light emitting unit and the control part. For example, the light emitting units are connected in series and connected to the same control switch, and the electrical conduction of the light emitting units can be controlled simultaneously by one control switch, or at least some of the light emitting units are connected in parallel and connected to different control switches, and the electrical conduction of the corresponding light emitting unit can be controlled independently by the control switches.

In the embodiment of the present application, the lighting device includes at least one light emitting unit electrically connected to the power supply portion 20, and in order to prevent fluid from entering the light emitting unit and affecting the normal function of the light emitting unit, a sealing device 40 is provided for the light emitting unit in the present application, so as to improve the installation sealing performance of the light emitting unit.

Specifically, in the embodiment of the present application, the sealing device 40 includes a frame body 41, at least one cover covering the light emitting unit, and at least one sealing member sealingly disposed between the cover and the frame body 41. The sealing device 40 can prevent fluid from flowing from the outer housing 411 to the conductive member by blocking the passage between the outer housing 411 and the conductive member inside the outer housing 411.

More specifically, the frame body 41 includes an outer housing 411 having a receiving cavity 401 and at least one mounting base for mounting the light emitting unit. The outer housing 411 has a first cavity opening 4011, a first side wall 4111, and spaced apart second and third side walls 4112, 4113 extending in a thickness direction set by the seal assembly 40 from a first side of the first side wall 4111 and a second side opposite the first side, respectively, the first side wall 4111 being opposite the first cavity opening 4011.

In the embodiment of the present application, the outer housing 411 further has a first hooking portion 41141 and a second hooking portion 41142 extending inward from the second side wall 4112 and the third side wall 4113, respectively, along the width direction set by the sealing device 40. The first hooking portion 41141 and the second hooking portion 41142 form a fourth side wall 4114 of the outer housing 411, and define the first cavity opening 4011, which defines a width dimension of the first cavity opening 4011. In a modified embodiment of the present application, the second side wall 4112 and the third side wall 4113 define the first cavity opening 4011 and define a width dimension of the first cavity opening 4011, and the first hooking portion 41141 and the second hooking portion 41142 are not formed in the outer housing 411.

In the embodiment of the present application, the lighting device includes a first light emitting unit 50, and the first light emitting unit 50 includes a first light emitting body 51 capable of emitting light after being turned on. The first mounting substrate 412 is held in the receiving cavity 401 of the outer housing 411, the first mounting substrate 412 has a first mounting surface 4121, and the first mounting surface 4121 includes a first conductive mounting region 41201 suitable for disposing a conductive member (e.g., the first light emitting unit 50, an electrical connection terminal). As shown in fig. 3, the first light emitting body 51 of the first light emitting unit 50 is mounted to the first conductive mounting region 41201 of the first mounting surface 4121 to achieve electrical conduction of the first light emitting body 51.

It should be noted that, as shown in fig. 3 and fig. 4, the first light emitting unit 50 further includes a lamp bowl 52 externally disposed on the first light emitting body 51, and configured to converge the light emitted from the first light emitting body 51.

The sealing device 40 includes a first housing 42 covering the first light emitting unit 50. Specifically, the first cover 42 has a first cover opening 4201, a first cover first side wall 421, a first cover second side wall 422 and a first cover third side wall 423 extending from a first side of the first cover first side wall 421 and a second side opposite to the first side, respectively, in a thickness direction set by the sealing device 40, the first cover first side wall 421 being opposite to the first cover opening 4201.

In the embodiment of the present application, the first cover 42 further has a first extension portion 4241 and a second extension portion 4242 respectively extending outward from the first cover second side wall 422 and the first cover third side wall 423 in the width direction set by the sealing device 40, and the first extension portion 4241 and the second extension portion 4242 form the first cover fourth side wall 424. In a modified embodiment of the present application, the first cover 42 does not form the first and second outwardly extending portions 4241 and 4242.

It should be noted that in some embodiments of the present application, the first cover 42 is received in the receiving cavity 401 of the outer housing 411, and the first mounting base 412 is mounted in the first cover 42, in such a way that the first mounting base 412 is held in the receiving cavity 401 of the outer housing 411. In other embodiments of the present application, the first mounting base 412 may be held in the receiving cavity 401 of the outer housing 411 by other methods, which is not limited by the present application. For example, the first mounting base 412 is fixed in the housing chamber 401, or the first mounting base 412 is mounted on a second cover 44 described later, or the first mounting base 412 is sandwiched between the first cover 42 and the second cover 44.

The first cover 42 is accommodated in the accommodating cavity 401 of the outer housing 411 in an inverted manner from the first cavity opening 4011. Specifically, the first cavity opening 4011 and the first cover opening 4201 both correspond to the first light emitting unit 50, and the first cover 42 is mounted to the outer housing 411 in such a manner that the orientation of the first cover opening 4201 thereof is opposite to the orientation of the first cavity opening 4011 of the outer housing 411. The width of the first cover four-side wall 424 is greater than the width of the first cavity opening 4011, so that the first cover 42 is engaged with the accommodating cavity 401 of the outer housing 411. Here, the orientation of the first cover opening 4201 means: the first cavity opening 4011 is oriented in a direction from a portion (first cover first side wall 421) of the first cover 42 opposite to the first cover opening 4201, where: a direction of the first cavity opening 4011 is directed from a portion (first side wall 4111) of the outer housing 411 opposite to the first cavity opening 4011.

The first cover 42 has a first light transmission portion facing the first light emitting body 51 to allow light emitted from the first light emitting body 51 to transmit therethrough. The first light-transmitting portion of the first cover 42 is made of a light-transmitting material.

As shown in fig. 5, a gap between the receiving cavity 401 of the outer housing 411 and the first cover 42 and a gap between the first cover 42 and the first mounting base 412 form a first fluid channel 4010 between the first cavity opening 4011 and the first mounting base 412, which may cause a fluid to enter the first conductive mounting region 41201 of the first mounting base 412 from the first cavity opening 4011, and affect a normal function of the first light emitting body 51 disposed on the first conductive mounting region 41201.

Preferably, the first cover 42 abuts against and tightly fits the inner wall of the first cavity opening 4011 to prevent fluid from entering into the receiving cavity 401 of the outer housing 411 from the first cavity opening 4011 and further entering into the first mounting base 412 as much as possible.

Further, the sealing device 40 includes a first sealing member 43 sealingly disposed between the first cover 42 and the frame body 41, and the first sealing member 43 is disposed in the first fluid channel 4010 and blocked between the first cavity opening 4011 and the first light emitting unit 50, so as to prevent the fluid flowing into the first fluid channel 4010 from the first cavity opening 4011 from flowing to the first light emitting unit 50. Thus, a first sealed cavity corresponding to the first light emitting unit 50 is formed among the outer housing 411, the first cover 42 and the first sealing member 43, and the first light emitting unit 50 is sealed therein.

The first sealing member 43 functions to block a fluid path between the first cavity opening 4011 and the first light emitting unit 50 of the first mounting substrate 412, and the specific position of the first sealing member 43 is not limited in this application. In some embodiments of the present application, the first sealing member 43 is sealingly disposed between the first cover 42 and an inner wall of the receiving cavity 401 of the outer housing 411, as shown in fig. 5. In a specific example of the present application, the first sealing member 43 is disposed between the first housing four side walls 424 and the first side wall 4111 of the outer housing 411, and surrounds the first housing opening 4201, so as to prevent fluid from entering the light emitting unit 50 from the first housing opening 4201. In other specific examples of the present application, the first sealing member 43 may be disposed between other sidewalls of the first cover 42 and other sidewalls of the outer housing 411, for example, between the first cover second sidewall 422 and the second sidewall 4112 of the outer housing 411, between the first cover third sidewall 423 and the third sidewall 4113 of the outer housing 411, and for another example, between the first cover fourth sidewall 424 and the fourth sidewall 4114 of the outer housing 411. In other specific examples of the present application, the first sealing member 43 may surround the first cavity opening 4011.

In other embodiments of the present application, the first sealing member 43 sealingly seals between the first casing 42 and the first mounting base 412, as shown in FIG. 6. In one specific example of the present application, the first sealing element 43 is disposed between the first cover four-side wall 424 and the first mounting surface 4121 of the first mounting base 412 and surrounds the first cover opening 4201.

In the embodiment of the present application, the first cover 42 has a first concave groove, and the first sealing element 43 is fitted in the first concave groove of the first cover 42. Preferably, the inner wall of the receiving cavity 401 of the outer housing 411 or the first mounting base 412 has a mounting groove body corresponding to the first recessed groove of the first cover 42, and the first sealing member 43 is tightly fitted between the first recessed groove of the first cover 42 and the outer housing 411 or the mounting groove body of the first mounting base 412.

In the embodiment of the present application, the first sealing element 43 is integrally combined with the first housing 42 through an encapsulation process, so that the first sealing element 43 and the first housing 42 form an integral structure, that is, the first sealing element 43 and the first housing 42 are integrally formed, so as to achieve a seamless combination between the first sealing element 43 and the first housing 42, and improve the sealing performance of the sealing device 40.

It should be noted that, in the embodiment of the present application, the first cover 42 and the inner wall of the receiving cavity 401 of the outer housing 411 form at least one receiving cavity in the thickness direction set by the sealing device 40. The sealing device 40 further includes at least one pressing element 90 accommodated in the at least one accommodating cavity, and the pressing element 90 abuts between the first cover 42 and the outer housing 411 in the thickness direction set by the sealing device 40, so that the first cover 42 is pressed against the outer housing 411 of the frame body 41 or the first mounting base 412 in the thickness direction set by the sealing device 40, so as to reduce the gap between the first cover 42 and the frame body 41 and improve the sealing performance of the sealing device 40. That is, the sealing device 40 not only improves its sealing performance by blocking the passage between the outer case 411 and the light emitting body by the sealing member, but also further improves its sealing performance by pressing the cover body covering the light emitting body by the pressing member 90.

Specifically, the first extending portion 4241 and the second extending portion 4242 of the first cover 42 are respectively opposite to the first hooking portion 41141 and the second hooking portion 41142 of the outer shell 411, and a gap between the first extending portion 4241 of the first cover 42 and the first hooking portion 41141 of the outer shell 411 in the thickness direction set by the sealing device 40 forms a first accommodating cavity 402; a gap between the second outer extension portion 4242 of the first cover 42 and the second hooking portion 41142 of the outer shell 411 in the thickness direction set by the sealing device 40 forms a second accommodating cavity 403. The sealing device 40 includes a first pressing element and a second pressing element respectively disposed in the first receiving cavity 402 and the second receiving cavity 403 between the outer housing 411 and the first cover 42.

In the embodiment of the present application, the main function of the pressing element 90 is to generate a pressure on the first cover 42 in the thickness direction set by the sealing device 40, and the specific implementation is not limited by the present application. The pressing element 90 may be implemented as, but not limited to, a screw, a pin, a spring, rubber.

As shown in fig. 1 and 2, a first retaining member 4142 is further disposed between the outer housing 411 and the first cover 42 to fix the first cover 42 to the outer housing 411, so as to maintain a relative position between the outer housing 411 and the first cover 42 and prevent the first cover 42 from moving relative to the outer housing 411. In a specific example of the present application, the first retaining member 4142 is implemented as a screw installed between the first housing second sidewall 422 of the first housing 42 and the second sidewall 4112 of the outer housing 411, and between the first housing third sidewall 423 of the first housing 42 and the third sidewall 4113 of the outer housing 411. Of course, the specific structure and retention manner of the first retention member 4142 is not limited by the present application.

In the embodiment of the present application, the lighting device further includes a second light emitting unit 60, and the second light emitting unit 60 includes a second light emitting body 61 capable of emitting light after being turned on. Specifically, the second light emitting body 61 and the first light emitting body 51 are mounted on the same mounting substrate, and the first light emitting body 51 and the second light emitting body 61 are opposite to each other in the thickness direction set by the sealing device 40, so as to reduce the thickness dimension occupied by the first light reflecting unit and the second light emitting unit 60.

Accordingly, the first mounting substrate 412 has a second mounting face 4122, and the second mounting face 4122 includes a second conductive seating region 41202 adapted to seat a conductive member (e.g., the second light emitting cell 60, an electrical connection terminal). As shown in fig. 4, the second light emitting body 61 is mounted to the second conductive mounting region 41202 to enable electrical conduction of the second light emitting body 61.

The housing cavity 401 has a second cavity opening 4012 corresponding to the second light emitting body 61, and the second cavity opening 4012 is opposite to the first cavity opening 4011. The sealing device 40 for a lighting apparatus further includes a second housing 44 received in the receiving cavity 401 of the outer housing 411 and housing the second light emitting unit 60. The second cover 44 has a second cover opening 4401, a second cover first side wall 441, a second cover second side wall 442 extending from the first side and the second side of the second cover first side wall 441 along the thickness direction set by the sealing device 40, and a second cover third side wall 443, wherein the second cover first side wall 441 is opposite to the second cover opening 4401.

In the embodiment of the present application, the second shield 44 further has a third extension 4441 and a fourth extension 4442 respectively extending outward from the second shield second side wall 442 and the second shield third side wall 443 in the width direction set by the sealing device 40, and the third extension 4441 and the fourth extension 4442 form the second shield fourth side wall 444. In the modified embodiment of the present application, the third and fourth extensions 4441 and 4442 are not formed by the second cover 44.

It should be noted that, in the embodiment of the present application, the first cover 42, the first light emitting unit 50 and the second cover 44 correspond to each other in the thickness direction set by the sealing device 40, when the pressing element 90 abutting against the first cover 42 presses the first cover 42 against the frame body 41, the first light emitting unit 50 and the second cover 44 are pressed in the same direction, and the second cover 44 is also pressed against the frame body 41. In this way, the pressing force of the pressing member 90 can improve not only the sealability between the first cover 42 and the frame body 41 but also the sealability between the second cover 44 and the frame body 41.

The second cover 44 is accommodated in the accommodating cavity 401 of the outer housing 411 in an inverted manner from the second cavity opening 4012. Specifically, the second cavity opening 4012 and the second cover opening 4401 both correspond to the second light emitting unit 60, and the second cover 44 is mounted on the outer housing 411 in a manner that the orientation of the second cover opening 4401 is opposite to the orientation of the second cavity opening 4012 of the outer housing 411. The width of the second cover four side wall 444 is greater than the width of the second cavity opening 4012, so that the second cover 44 is clamped in the accommodating cavity 401 of the outer shell 411. Here, the orientation of the second cover opening 4401 refers to: the second housing opening 4012 is oriented in a direction pointing to the second housing opening 4401 from a portion (a second housing first side wall 441) of the second housing 44 opposite to the second housing opening 4401, where: the direction of the second chamber opening 4012 is directed from the portion of the outer housing 411 opposite to the second chamber opening 4012 (first chamber opening 4011).

The second cover 44 has a second light-transmitting portion facing the second light-emitting body 61 to allow light emitted from the second light-emitting body 61 to pass therethrough. The second light-transmitting portion of the second cover 44 is made of a light-transmitting material.

As shown in fig. 5, a gap between the receiving cavity 401 of the outer housing 411 and the second cover 44 and a gap between the second cover 44 and the first mounting substrate 412 form a second fluid channel 4020 between the second cavity opening 4012 and the first mounting substrate 412, which may cause fluid to enter the second conductive mounting region 41202 of the first mounting substrate 412 from the second cavity opening 4012, and affect the normal function of the second light emitting body 61 disposed on the second conductive mounting region 41202.

Preferably, the second cover 44 abuts against the inner wall of the second cavity opening 4012 to prevent the fluid from entering into the receiving cavity 401 of the outer housing 411 from the second cavity opening 4012 and further entering into the first mounting base 412 as much as possible.

Further, the sealing device 40 includes a second sealing member 45 sealingly disposed between the second cover 44 and the frame body 41, and the second sealing member 45 is disposed in the second fluid channel 4020 and blocked between the second cavity opening 4012 and the second light emitting unit 60, so as to prevent the fluid flowing into the second fluid channel 4020 from the second cavity opening 4012 from flowing to the second light emitting unit 60. In this way, a second sealed cavity corresponding to the second light emitting unit 60 is formed among the outer housing 411, the second cover 44 and the second sealing member 45, and the second light emitting unit 60 is sealed therein, wherein the first sealed cavity is opposite to the second sealed cavity.

The second sealing member 45 is used to block a fluid path between the second cavity opening 4012 and the second light emitting unit 60, and the specific position of the second sealing member 45 is not limited in this application. In some embodiments of the present application, the second sealing member 45 is sealingly disposed between the second cover 44 and the inner wall of the receiving cavity 401 of the outer housing 411. In a specific example of the present application, the second sealing element 45 is disposed between the second cover four side wall 444 and the first side wall 4111 of the outer housing 411, and surrounds the second cavity opening 4012 to prevent fluid from entering the second light emitting unit 60 from the second cavity opening 4012. In other specific examples of the present application, the second sealing member 45 may be disposed between other side walls of the second cover 44 and other side walls of the outer housing 411, for example, between the second cover second side wall 442 and the second side wall 4112 of the outer housing 411, between the second cover third side wall 443 and the third side wall 4113 of the outer housing 411.

In other embodiments of the present application, the second seal 45 sealingly engages between the second housing 44 and the first mounting base 412. In a specific example of the present application, the second sealing element 45 is disposed between the second cover four-side wall 444 and the second mounting surface 4122 of the first mounting base 412 and surrounds the second cover opening 4401.

In the embodiment of the present application, the second cover 44 has a second concave groove, and the second sealing element 45 is fitted in the second concave groove of the second cover 44. The inner wall of the receiving cavity 401 of the outer housing 411 or the first mounting base 412 has a first mounting groove 404 corresponding to the second recessed groove of the second cover 44, and the second sealing member 45 is tightly fitted between the second recessed groove of the second cover 44 and the outer housing 411 or the first mounting groove 404 of the first mounting base 412.

In the embodiment of the present application, the second sealing element 45 is integrally combined with the second housing 44 through an encapsulation process, so that the second sealing element 45 and the second housing 44 form an integrated structure, that is, the second sealing element 45 and the second housing 44 are integrally formed, so as to achieve a seamless combination between the second sealing element 45 and the second housing 44, and improve the sealing performance of the sealing device 40.

It is worth mentioning that the present embodiment not only realizes the side sealing by the first sealing member 43 and the second sealing member 45 to prevent the fluid from entering the sealing device 40 from the side of the sealing device 40 (as shown in fig. 11), but also realizes the end sealing by other sealing components to prevent the fluid from entering the sealing device 40 from the end of the sealing device 40 (as shown in fig. 12). That is, the sealing device 40 performs sealing not only by side sealing but also by end sealing, so as to realize multi-directional sealing and improve the sealing performance of the sealing device 40.

Specifically, the first housing 42 has a first end 4202 and a second end 4203 opposite to each other, and the lighting device further includes a sealing assembly disposed at the first end 4202 of the first housing 42 to achieve a first end seal of the sealing device 40.

More specifically, the sealing assembly disposed at first end 4202 of first housing 42 includes second mounting base 46 disposed at first end 4202 of first housing 42. The first end 4202 of the first cover 42 has a first end groove 4204, and the outer peripheral portion of a part of the second mounting base 46 (i.e., the base main body 461) is closely attached to the inner wall of the first end groove 4204, so that the sealing property between the second mounting base 46 and the first cover 42 is improved.

In the embodiment of the present application, the second mounting base 46 is integrally formed on the first cover 42 by a molding process, so as to improve the sealing property between the second mounting base 46 and the first cover 42.

The second mounting base 46 further includes a shielding portion 462 (shown in fig. 7 to 9) extending laterally outward from the base body 461 to shield the light emitted from the first and second light emitting bodies 51 and 61 of the lighting device toward the first end 4202 of the first cover 42, i.e., to prevent the side lamp (the first and second light emitting bodies 51 and 61) from leaking light.

The second mounting base 46 further includes at least one protrusion 463 (as shown in fig. 9) protruding from an outer surface thereof, an inner wall of the receiving cavity 401 of the outer housing 411 has a limiting groove 405 corresponding to the at least one protrusion 463, and the protrusion 463 is limited in the limiting groove 405 to prevent the first cover 42 from moving during the assembling process. For example, to prevent the first housing 42 from moving up and down during installation of the pressing member 90.

In particular, each of the light emitting units generates heat energy during light emission, and the second mounting substrate 46 includes at least one heat dissipation portion made of a material having a high thermal conductivity to dissipate heat.

In the embodiment of the present application, the lighting device further includes a third light emitting unit 70, where the third light emitting unit 70 includes a mounting board and a third light emitting body 71 capable of emitting light and mounted on the mounting board, as shown in fig. 10. The second mounting substrate 46 has a third mounting surface, and the third mounting surface of the second mounting substrate 46 includes a third conductive mounting region adapted to route conductive components (e.g., the third light emitting cells 70, electrical connection terminals). The third light emitting unit 70 is disposed on a third conductive mounting region of the third mounting surface of the second mounting substrate 46 in such a manner that the mounting board is mounted on the third conductive mounting region of the third mounting surface of the second mounting substrate 46.

The second mounting base 46 has a first wire through hole 464 (as shown in fig. 8) for allowing an electrical connection wire to pass therethrough, and an electrical connection wire connected to an electrical connection portion of the first mounting base 412 adjacent to the first end 4202 of the first cover 42 may be connected to an electrical connection portion of the mounting board of the third light emitting unit 70 through the first wire through hole 464, thereby achieving electrical conduction among the first light emitting unit 50, the second light emitting unit 60, and the third light emitting unit 70.

The sealing assembly of the sealing device 40 disposed at the first end 4202 of the first housing 42 further includes a cover 49 covering the third light emitting unit 70. The cover 49 includes a cover main body 491 and a tongue portion 493 extending laterally from the cover main body 491, wherein the tongue portion 493 is inserted between the outer casing 411 and the first cover 42, so that the cover 49 is fastened between the outer casing 411 and the first cover 42. Preferably, the first cover 42 and the outer housing 411 are tightly attached to the tongue portion 493, so as to improve the sealing performance between the cover 49 and the first cover 42 and the outer housing 411.

The cover 49 further includes a third light-transmitting portion opposite to the third light-emitting body 71 to allow light rays occurring from the third light emission to pass therethrough. The third light transmission section is implemented as a lens 492 and is detachably attached to the cover main body 491.

The cover 49 and the first cover 42 are fixed by a second retaining member 4249 to maintain the relative positional relationship between the cover 49 and the first cover 42. The second retaining member 4249 is implemented as a screw, the first housing 42 has a threaded post engaged with the screw, the cover 49 has a through hole fitted with the screw, and the cover 49 is fixed to the first housing 42 by the screw. Of course, the specific structure and retention manner of the second retention member 4249 are not limited by the present application.

The gap between the cover 49 and the second mounting substrate 46 enables a third fluid channel to be formed between the cover 49 and the second mounting substrate 46, which may cause fluid to enter a third conductive mounting region of the second mounting substrate 46 from the cover 49, and affect the normal function of a third light emitting body 71 disposed on the third conductive mounting region.

Further, the sealing assembly of the sealing device 40 disposed at the first end 4202 of the first housing 42 further includes a third sealing element 47 sealingly disposed in the third fluid channel and captured between the cover 49 and the third light emitting unit 70 of the second mounting base 46 to prevent fluid flowing from the cover 49 into the third fluid channel from flowing to the third light emitting unit 70.

The third sealing member 47 functions to block a fluid path between the cover 49 and the third light emitting unit 70 of the second mounting base 46, and the specific position of the third sealing member 47 is not limited in this application. In a specific example of the present application, the third sealing member 47 surrounds the third light emitting unit 70, and an outer peripheral portion of the third sealing member 47 closely adheres to an inner wall of the tongue-shaped portion 493 of the cover 49, so as to prevent the fluid from flowing from the cover 49 to the third light emitting unit 70 of the second mounting base 46.

The lighting device further comprises a sealing assembly arranged at the second end 4203 of the first enclosure 42 to effect a second end seal to the sealing arrangement 40. The seal assembly disposed at the second end 4203 of the first housing 42 includes a fourth seal 48 disposed at the second end 4203 of the first housing 42. Specifically, the second end 4203 of the first cover 42 has a second end slot 4205, and the outer periphery of the fourth sealing element 48 is closely attached to the inner wall of the second end slot 4205, so as to prevent fluid from flowing into the first cover 42 from the gap between the fourth sealing element 48 and the inner wall of the second end slot 4205.

The fourth sealing member 48 has a second wire passing hole 481 for allowing an electrical connection wire to pass therethrough, and the electrical connection wire connected to the electrical connection portion of the first mounting base 412 adjacent to the second end 4203 of the first cover 42 may be connected to the circuit board of the power supply portion 20 through the second wire passing hole 481 to achieve electrical conduction between the first, second, and third light emitting cells 50, 60, 70 and the power supply portion 20.

It should be noted that, in the embodiment of the present application, the first sealing element 43, the second sealing element 45, the third sealing element 47 and the fourth sealing element 48 are all made of an elastic material, so that each sealing element can be tightly attached to a component in contact therewith in a process of being compressed, so as to improve sealing performance. In some embodiments of the present application, the first seal 43, the second seal 45, the third seal 47, and the fourth seal 48 are made of soft rubber, for example, tetraphenyl ethylene (TPE).

The sealing assembly disposed on the second end 4203 of the first housing 42 further includes a connecting portion 80 mounted to the outer housing 411. The connecting portion 80 is adjacent to the second end 4203 of the first cover 42 and includes a connecting cavity 81 covered on the outer housing 411, and the connecting cavity 81 not only covers the portion of the outer housing 411 adjacent to the second end 4203 of the first cover 42, but also covers the second end 4203 of the first cover 42 and the fourth sealing member 48 mounted on the second end 4203.

Preferably, the outer peripheral portion of the outer housing 411 and the outer peripheral portion of the first cover 42 are tightly attached to the inner wall of the connecting cavity 81, so as to improve the sealing performance between the outer housing 411 and the first cover 42 and the connecting portion 80, and prevent fluid from flowing from the second end 4203 of the first cover 42 to the conductive mounting areas of the first mounting base 412 and the second mounting base 46, which affects the normal operation of the light emitting units disposed in the conductive mounting areas of the first mounting base 412 and the second mounting base 46.

The attachment portion 80 not only acts as a portion of a seal assembly to prevent fluid flow into the first housing 42, but also serves to attach the seal assembly 40 to the mounting carrier 10. The connecting portion 80 further includes a connecting arm 82 connected between the connecting cavity 81 and the mounting carrier 10.

The sealing device 40 may be fixed to the mounting carrier 10 or may be movably mounted to the mounting carrier 10, which is not limited in this application. In a specific example of the present application, the sealing device 40 is pivotably connected to the mounting carrier 10 by the connecting portion 80. Accordingly, in this particular example, the connecting portion 80 further includes a connecting shaft 83 disposed between the connecting arm 82 and the mounting carrier 10 such that the sealing device 40 is rotatable relative to the mounting carrier 10.

In summary, the lighting device according to the embodiment of the present application is clarified that the sealing means 40 can prevent the fluid from flowing from the outer housing 411 to the conductive member by blocking the passage between the outer housing 411 thereof and the conductive member inside the outer housing 411. And the sealing device 40 not only seals through side sealing, but also seals through end sealing to realize multi-azimuth sealing, improve the leakproofness of the sealing device 40.

Method for assembling sealing device for lighting equipment

As shown in fig. 13, an assembling method of a sealing device 40 for a lighting apparatus according to an embodiment of the present application is illustrated, wherein the assembling method of the sealing device 40 for a lighting apparatus includes: s110, forming a first sealing body, wherein the first sealing body includes a first cover 42 and a first sealing member 43 integrally formed with the first cover 42; s120, mounting a first mounting substrate 412, and a first light emitting unit 50 and a second light emitting unit 60 disposed on the first mounting substrate 412 on a first cover 42, wherein the first light emitting unit 50 is opposite to the second light emitting unit 60, and the first light emitting unit 50 is covered in the first cover 42 to form a first sealing unit; s130, forming a second sealing body, wherein the second sealing body includes a second cover 44 and a second sealing member 45 integrally formed on the second cover 44; s140, mounting the second sealing body in a housing cavity 401 of the outer housing 411, wherein the housing cavity 401 includes a first cavity opening 4011 and a second cavity opening 4012 opposite to the first cavity opening 4011, the second sealing body is mounted in the housing cavity 401 in an inverted manner from the second cavity opening 4012, and the outer housing 411 and the first mounting base 412 form a frame main body 41 of the sealing device for the lighting apparatus; s150, installing the first sealing unit in the accommodating cavity 401 of the outer housing 411, wherein the first cover 42 has a first cover opening 4201, and the first cover 42 is installed in the accommodating cavity 401 in an inverted manner from the first cavity opening 4011; s160, installing at least one pressing element 90 between the first cover 42 and the receiving cavity 401 of the outer housing 411 to press the first cover 42 to the frame body 41 of the outer housing 411 in the thickness direction set by the outer housing 411; s170, mounting a third sealing member 47 to the first sealing body, wherein the first enclosure 42 has a first end 4202 and a second end 4203 opposite to each other, the first sealing body further includes a second mounting base 46 integrally formed at the first end 4202 of the first enclosure 42, a third light emitting unit 70 is mounted to the second mounting base 46, and the third sealing member 47 is mounted around the third light emitting unit 70; s180, installing a cover between the outer housing 411 and the first cover 42, wherein the cover is adjacent to the first end 4202 of the first cover 42, and the cover covers the third sealing element 47 therein; and S190, attaching the fourth seal 48 to the second end 4203 of the first cover 42. The specific structure, function, position relationship and the like of each component of the sealing device 40 are described in detail in the lighting device explained with reference to fig. 1 to 12, and are not repeated herein.

In summary, the assembling method of the sealing device 40 for the lighting apparatus based on the embodiment of the present application is illustrated, in the assembling method of the sealing device 40, a plurality of components are integrally molded to form an integral structure, so as to simplify the assembling process, so that the assembling method is simple and easy to implement.

The basic principles of the present application have been described above with reference to specific embodiments, but it should be noted that advantages, effects, etc. mentioned in the present application are only examples and are not limiting, and the advantages, effects, etc. must not be considered to be possessed by various embodiments of the present application. Furthermore, the foregoing disclosure of specific details is provided for purposes of illustration and understanding only, and is not intended to limit the application to the details which are set forth in order to provide a thorough understanding of the present application.

Claims (20)

1. A sealing arrangement for a lighting device, comprising:

a frame body including an outer case having a housing cavity and a first mounting base held in the housing cavity of the outer case;

a first light emitting unit mounted on the first mounting substrate;

a first cover body accommodated in the accommodating cavity of the outer shell and covering the first light-emitting unit; and

a first sealing member sealingly disposed between the first cover and the frame body;

the accommodating cavity of the outer shell and the first cover body are respectively provided with a first cavity opening corresponding to the first light-emitting unit and a first cover body opening opposite to the first cavity opening in direction, a first fluid channel is formed between the first cavity opening and the first mounting base body, and the first sealing element is arranged in the first fluid channel and is blocked between the first cavity opening and the first light-emitting unit so as to prevent fluid flowing into the first fluid channel from the first cavity opening from flowing to the first light-emitting unit.

2. The sealing arrangement for a lighting device of claim 1, wherein the first sealing member is sealingly disposed between the first enclosure and an inner wall of the receiving cavity of the outer housing.

3. The sealing arrangement for a lighting fixture of claim 1, wherein the first seal is sealingly disposed between the first casing and the first mounting base.

4. The sealing arrangement for a lighting device of claim 2 or 3, wherein the first seal surrounds the first enclosure opening.

5. The sealing arrangement for a lighting device of claim 4, wherein the first sealing member is integrally bonded to the first casing such that the first sealing member and the first casing form a unitary structure.

6. The sealing device for a lighting apparatus according to claim 1, further comprising at least one pressing member provided between the outer housing and the first cover so that the first cover is pressed against the frame body in a thickness direction set by the sealing device for a lighting apparatus.

7. The sealing apparatus for a lighting device according to claim 1, further comprising a second light emitting unit mounted on the first mounting substrate, a second cover covering the second light emitting unit, and a second sealing member, wherein the receiving cavity of the outer housing and the second cover respectively have a second cavity opening corresponding to the second light emitting unit and a second cover opening facing opposite to the second cavity opening, a second fluid channel is formed between the second cavity opening and the first mounting substrate, and the second sealing member is disposed in the second fluid channel and is blocked between the second cavity opening and the second light emitting unit to block the fluid flowing from the second cavity opening into the second fluid channel from flowing to the second light emitting unit.

8. The sealing arrangement for a lighting device of claim 7, wherein the second seal is sealingly disposed between the second enclosure and an inner wall of the receiving cavity of the outer housing.

9. The sealing arrangement for a lighting device of claim 8, wherein said second seal surrounds said second cavity opening.

10. The sealing arrangement for a lighting fixture of claim 7, wherein said second seal is sealingly disposed between said second enclosure and said first mounting base.

11. The sealing arrangement for a lighting device of claim 7, wherein the second sealing member is integrally bonded to the second enclosure such that the second sealing member and the second enclosure form a unitary structure.

12. The sealing device for a lighting apparatus according to claim 7, wherein the first cover has a first end portion and a second end portion that are opposite to each other, the sealing device for a lighting apparatus further comprising a second mounting base provided at the first end portion of the first cover, the first end portion of the first cover having a first end groove, the second mounting base comprising a base body having an outer peripheral portion that is closely attached to an inner wall of the first end groove.

13. The sealing arrangement for a lighting device of claim 12, wherein said second mounting substrate comprises at least one heat dissipating portion.

14. The sealing arrangement for a lighting device of claim 12, wherein the second mounting base further includes a shield portion extending laterally outward from the base body to shield light rays exiting the first and second light emitting units of the lighting device toward the first end of the first enclosure.

15. The sealing device for a lighting apparatus according to claim 12, wherein the second mounting substrate further comprises at least one protrusion protruding from an outer surface thereof, an inner wall of the receiving cavity of the outer housing has a limiting groove corresponding to the at least one protrusion, and the protrusion is limited in the limiting groove.

16. The sealing device for a lighting device of claim 12, further comprising a cover covering said second mounting substrate, said cover being snapped between said outer housing and said first cover.

17. The sealing apparatus for a lighting device of claim 16, further comprising a third light emitting unit mounted to the second mounting substrate, a third sealing member forming a third fluid channel between the cover and the second mounting substrate, the third sealing member being disposed in the third fluid channel and being blocked between the cover and the second mounting substrate to prevent fluid flowing from the cover into the third fluid channel from flowing to the third light emitting unit.

18. The sealing arrangement for a lighting device of claim 17, wherein said third seal surrounds a third light emitting unit of said second mounting substrate.

19. The sealing device for a lighting fixture of claim 17, wherein the second end of the first housing has a second end slot, the sealing device further comprising a fourth sealing member formed in the second end slot of the first housing, an outer peripheral portion of the fourth sealing member closely fitting an inner wall of the second end slot.

20. An illumination device, comprising:

mounting a carrier;

a power supply unit held by the mounting carrier;

a sealing device according to any one of claims 1 to 19 mounted to the mounting carrier; and

at least one light emitting unit electrically connected to the power supply portion, at least one of the at least one light emitting unit being mounted in the sealing device.

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