CN108426209B

CN108426209B - Light emitting module, lighting device and ceiling lamp

Info

Publication number: CN108426209B
Application number: CN201810185474.6A
Authority: CN
Inventors: 马骥
Original assignee: Opple Lighting Co Ltd
Current assignee: Opple Lighting Co Ltd
Priority date: 2018-03-07
Filing date: 2018-03-07
Publication date: 2023-07-28
Anticipated expiration: 2038-03-07
Also published as: CN108426209A

Abstract

The application discloses a light emitting module, lighting device and ceiling lamp. The light-emitting module comprises a substrate, a light-emitting unit and a first electric connection piece, wherein the light-emitting unit is arranged on the first surface, the first electric connection piece is arranged on the second surface, and the light-emitting unit is electrically connected with the first electric connection piece. The lighting module comprises an assembly part and a light-emitting module, wherein the assembly part is fixed with the light-emitting module, and a first structure connecting piece is arranged on the assembly part. The lighting device comprises an adapter and a lighting module; the adapter is provided with a wiring terminal, a second structural connecting piece and a second electric connecting piece, wherein the first structural connecting piece and the second structural connecting piece are detachably connected, and the second electric connecting piece is contacted with the first electric connecting piece. The ceiling lamp comprises a wire harness, a lamp bracket and a lighting device; the adapter is fixed with the lighting fixture, and the pencil is located inside the lighting fixture and connects two adjacent adapters. According to the embodiment of the application, the repair and replacement difficulty of the light-emitting module can be reduced.

Description

Light emitting module, lighting device and ceiling lamp

Technical Field

The application relates to the technical field of lighting, in particular to a light emitting module, a lighting device and a pendant lamp.

Background

With the development of society, pendant lamps have become an integral part of people's daily life.

In the related art, a ceiling lamp generally has an outwardly extending lamp holder, a light emitting module is fixed on the lamp holder, the light emitting module is fixed on one hand by the lamp holder, and on the other hand, the ceiling lamp is also used for supplying power to the light emitting module, and a lamp shade and other structures can be additionally arranged outside the light emitting module. Considering the safety of electrical connection, the light emitting module is generally welded on the lamp holder, and cannot be detached at will.

However, when the light emitting module itself is damaged, the light emitting module and the lamp holder are welded together and cannot be disassembled, which results in difficulty in repairing and replacing the light emitting module, and even complete failure in repairing and replacing the light emitting module.

Disclosure of Invention

The embodiment of the application provides a light emitting module, a lighting device and a ceiling lamp to solve the above problem.

The embodiment of the application adopts the following technical scheme:

in a first aspect, an embodiment of the present application provides a light emitting module, including a substrate, a light emitting unit, and a first electrical connection member, where the substrate has a first surface and a second surface that are opposite to each other, the light emitting unit is disposed on the first surface, the first electrical connection member is disposed on the second surface,

the first electric connecting piece comprises a first electric connecting part and a second electric connecting part with opposite electric polarities, and the light emitting unit is electrically connected with the first electric connecting part and the second electric connecting part.

Preferably, in the above light emitting module, the second electrical connection portion is annularly distributed on the periphery of the first electrical connection portion.

Preferably, in the light emitting module, the first electrical connection portion and the second electrical connection portion are disposed concentrically.

Preferably, in the light emitting module, the first electrical connection portion is circular, and the second electrical connection portion is annular.

Preferably, in the light emitting module, the first electrical connection portion and the second electrical connection portion are both electrical connection pieces.

In a second aspect, an embodiment of the present application provides a lighting module, including an assembly and the lighting module, the assembly is fixed to the lighting module, and a first structural connector for connecting with an adapter is provided on the assembly.

Preferably, in the foregoing lighting module, the assembly is a lamp shade, and the lamp shade further has a light emitting portion, where the light emitting portion is connected to the first structural connector, and the light emitting portion is configured to receive the outgoing light of the light emitting unit and diffuse the outgoing light.

Preferably, in the lighting module, the lamp cover further has a receiving cavity, the receiving cavity is recessed from one side of the lamp cover to the inside, the light emitting module is disposed in the receiving cavity, and the first structural connecting piece and the light emitting part are sequentially disposed along the recessed direction of the receiving cavity.

Preferably, in the foregoing lighting module, the lighting module further includes a diffusing portion, where the diffusing portion and the light emitting module are sequentially disposed in the accommodating cavity from inside to outside, and configured to receive outgoing light of the light emitting unit and then enter the light emitting portion.

Preferably, in the lighting module, the diffusing part is disposed parallel to a side wall of the accommodating cavity.

Preferably, in the above-mentioned lighting module, the light emitting module is abutted with the diffusion portion.

Preferably, in the lighting module, the lighting module further includes a heat dissipation portion, and the heat dissipation portion is disposed in the accommodating cavity and is in thermal contact with the second surface of the light emitting module.

Preferably, in the foregoing lighting module, the heat dissipation portion is disposed flush with the first structural connector.

Preferably, in the lighting module, the first structural connector is a screw thread.

In a third aspect, an embodiment of the present application provides a lighting device, including an adapter and the lighting module;

the adapter is provided with a wiring terminal, a second structural connecting piece and a second electric connecting piece which are mutually fixed;

the wiring terminal is used for connecting a power supply and/or a control circuit, the first structural connecting piece and the second structural connecting piece are detachably connected, and the assembly part and the adapter are fixed; the second electric connecting piece comprises a third electric connecting part and a fourth electric connecting part, wherein the electric polarities of the third electric connecting part and the fourth electric connecting part are opposite, the third electric connecting part is contacted with the first electric connecting part, and the fourth electric connecting part is contacted with the second electric connecting part.

Preferably, in the lighting device, the first structural connector is screwed with the second structural connector.

Preferably, in the lighting device, the third electrical connection portion is a first spring pin, and the fourth electrical connection portion is a second spring pin.

Preferably, in the foregoing lighting device, the number of the second elastic pins is two, and the second elastic pins are symmetrically disposed at two sides of the first elastic pin.

Preferably, in the lighting device, the number of the second structural connectors and the number of the second electrical connectors on each adapter are at least two and the same, the second structural connectors and the second electrical connectors are respectively arranged in groups, and each group of the second structural connectors and the second electrical connectors are respectively matched with one lighting module.

Preferably, in the lighting device, the second structural connectors and the second electrical connectors are respectively disposed on the same or different sides of the adapter in groups.

Preferably, in the foregoing lighting device, the adapter has a first side and a second side facing away from each other, and the second structural connector and the second electrical connector are respectively disposed on the first side and the second side in groups.

Preferably, in the lighting device, the adapter includes a fixing base, a first lamp holder and a second lamp holder, and the terminal is located on the fixing base;

the second electric connection piece with the fixing base links to each other, first lamp stand with the assembly chamber is constituteed to the second lamp stand, second electric connection piece and the fixing base is all arranged in the assembly intracavity, wherein, first lamp stand is located the first side of adapter, second lamp stand is located the second side of adapter, first lamp stand and all be provided with on the second lamp stand second structural connection piece.

Preferably, in the aforementioned lighting device, the fitting chamber has a mounting opening extending in a direction perpendicular to the direction from the first side toward the second side, the mounting opening being for a lamp holder and a wire harness to enter the fitting chamber.

In a fourth aspect, embodiments of the present application provide a pendant lamp, including a wire harness, at least one lamp holder, and a plurality of lighting devices;

the adapter is fixedly connected with the lamp holder, the wire harness is positioned inside the lamp holder, and two ends of the wire harness are respectively connected with the wiring ends of two adjacent adapters.

Preferably, in the pendant lamp, both ends of the wire harness are provided with on-board terminals, and the on-board terminals are connected with the wiring terminals.

Preferably, the ceiling lamp further comprises a hanging wire, and the lamp bracket is hung by the hanging wire.

Preferably, in the pendant lamp, a hanging wire hole is formed in the lamp holder, and the hanging wire penetrates through the hanging wire hole and is fixedly connected with the lamp holder.

Preferably, the ceiling lamp has a hanging wire adjusting mechanism on the lamp holder for adjusting the relative position of the lamp holder and the hanging wire.

Preferably, in the pendant lamp, the hanging wire adjusting mechanism is an adjusting nut, and the adjusting nut can press/loosen the hanging wire.

Preferably, the number of the lamp holders in the pendant lamp is multiple, and the multiple lamp holders are sequentially arranged along the vertical direction.

Preferably, the ceiling lamp further comprises a chassis, and the suspension wire is fixed with the chassis.

The above-mentioned at least one technical scheme that this application embodiment adopted can reach following beneficial effect:

the embodiment of the application discloses light emitting module, lighting device and ceiling lamp can pull down light emitting module fast, reduce the light emitting module and repair and change the degree of difficulty.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

fig. 1 is a schematic front view of a ceiling lamp according to an embodiment of the present application;

fig. 2 is a schematic perspective view of a ceiling lamp according to an embodiment of the present application;

fig. 3 is a schematic diagram of a connection structure between a lamp holder and an adapter according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram of a connection structure between a lamp holder and a lifting rope according to an embodiment of the present disclosure;

fig. 5 is a schematic diagram of the overall structure of the lighting device disclosed in the embodiment of the present application;

FIG. 6 is a schematic view of an exploded construction of an adapter according to an embodiment of the present disclosure;

fig. 7 is a schematic view of a connection structure of an adapter and a wire harness according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a light emitting module according to an embodiment of the present disclosure;

FIG. 9 is a schematic structural view of a fitting disclosed in an embodiment of the present application;

fig. 10 is an exploded view of a lighting module according to an embodiment of the present disclosure;

FIG. 11 is a schematic side sectional view of a lighting module according to an embodiment of the present disclosure;

fig. 12 is a schematic diagram illustrating an assembly structure of an illumination module and an adapter according to an embodiment of the disclosure.

Reference numerals illustrate:

1-lighting module, 10-lighting module, 100-lighting unit, 102-first electrical connection, 1020-first electrical connection, 1022-second electrical connection, 104-base plate, 12-fitting/lamp housing, 120-first structural connection, 122-light outlet, 124-receiving cavity, 14-diffuser, 16-heat sink, 2-adapter, 20-second structural connection, 21-connection, 22-second electrical connection, 220-first latch, 222-second latch, 224-insulation body, 24-mount, 25-first lamp base, 26-second lamp base, 27-fitting cavity, 28-mounting opening, 3-lamp base, 30-messenger hole, 32-messenger adjustment mechanism/adjustment nut, 34-outlet, 4-messenger, 5-harness, 50-board terminal, 6-chassis.

Detailed Description

For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.

The embodiment of the application discloses a ceiling lamp, as shown in fig. 1 to 5, including lighting device, lighting fixture 3, hanging wire 4, pencil 5 and chassis 6 that comprise lighting module 1 and adapter 2. The chassis 6 is usually fixed on the ceiling, and a driving power source, a control module and the like are arranged in the chassis 6 and used for controlling power input, dimming, color mixing, information transmission and the like, which are mature components, so the drawings of the embodiment are not shown and are not repeated. The number of suspension wires 4 is usually not less than 3, so as to provide at least 3 fixing points for the lamp holder 3, and a planar fixing structure is formed. One end of the hanging wire 4 is fixed on the chassis 6, and the rest is hung on the lamp bracket 3.

The lamp holder 3 is a main body structure of the ceiling lamp, and the lamp holder 3 is fixed with the hanging wire 4, so that the ceiling lamp is suspended in the air by the hanging wire 4. In view of the aesthetic and protective effects, the hanging wire hole 30 may be formed in the lamp holder 3, and the hanging wire 4 may be fixedly connected to the lamp holder 3 after passing through the hanging wire hole 30. In addition, a hanging wire adjusting mechanism 32 can be arranged on the lamp holder 3 to adjust the relative position of the lamp holder 3 and the hanging wire 4, so that the height or the inclination of the lamp holder 3 can be adjusted. The simple structure is that an adjusting nut is arranged to serve as a hanging wire adjusting structure 32, the adjusting nut 32 can compress or loosen the hanging wire 4 through rotating and stretching, and when adjustment is needed, the adjusting nut 32 is rotated to loosen the hanging wire 4, so that the hanging wire 4 passes through the hanging wire hole 30 and the posture of the lamp bracket 3 is adjusted. When the lamp holder 3 is adjusted to a proper posture, the adjusting nut 32 is rotated to press the hanging wire 4, and the hanging wire 4 cannot freely pass through any more, so that the hanging wire is fixedly connected with the lamp holder 3.

The lamp holder 3 can be in various shapes according to the specific shape of the pendant lamp, and the common shape is generally circular. And, the quantity of lighting fixture 3 also can adjust, for example arranges a plurality of lighting fixtures 3 that the size is different in proper order along vertical direction, constitutes and has high three-dimensional molding of low level.

The second function of the lamp holder 3 is to hide, guide and protect the wire harness 5. The wire harness 5 is composed of a power line and/or a control line for transmitting electric power and control signals, and the number of the wire harnesses 5 is large since each lighting device requires the wire harness 5 to transmit electric power and control signals. Wire slots and other structures can be arranged in the lamp holder 3, and the wire harnesses 5 are distributed along the lamp holder 3 and side by side to the required positions. The lamp bracket 3 can be provided with an extension port 34 at a required position for extending the wire harness 5.

The third function of the lamp holder 3 is to fix the lighting device. Specifically, as shown in fig. 6 and 7, the adapter 2 of the lighting device includes a second structural connector 20, a connecting end 21, a second electrical connector 22, a fixing base 24, a first lamp holder 25 and a second lamp holder 26. The terminal 21 is located on the fixing base 24, and the second electrical connector 20 is located on the connector assembly 23. And, the connector assembly 23 is connected with the fixing base 24, the first lamp holder 25 and the second lamp holder 26 form an assembling cavity 27, and the connector assembly 23 and the fixing base 24 are arranged in the assembling cavity 27.

The second structural connector 20 is configured to be detachably connected to the lighting module, and the connecting end 21 is configured to be connected to the wire harness 5 to provide electrical energy and control signals. The second electrical connector 22 is used for connecting with the light emitting module 10. In this embodiment, the second structural connector 20 may be provided directly on the exterior of the first lamp socket 25 and the second lamp socket 26, for example with threads (see fig. 6) for structural connection. And the second electrical connector 22 may also extend out of the mounting cavity 27 to electrically connect the lighting device. The two parts are covered by the lighting module after the connection is completed, and the two parts are not exposed to the outside to influence the appearance.

In this embodiment, in order to hide and protect the connection portion between the connection end 21 and the wire harness 5, the mounting opening 23 may be formed in the mounting cavity 27, the lamp holder 3 and the wire harness 5 may enter the mounting cavity 27 through the mounting opening 23, then the lamp holder 3 and the mounting opening 23 form a structural connection, the structural connection and fixation of the lamp holder 3 and the adaptor 2 are completed, and two ends of the wire harness 5 hidden inside the lamp holder 3 are respectively connected with the connection ends 21 of two adjacent adaptors 2. That is, each of the adapters 2 serves as an transit relay, and therefore each of the connection terminals 21 is to connect two wire harnesses 5. In order to facilitate connection of the wire harness 5 with the connection end 21, it is recommended to provide on-board terminals 50 at both ends of the wire harness 5.

As shown in fig. 8 to 12, the lighting module 1 of the lighting device includes a light emitting module 10 and a fitting 12, the light emitting module 10 includes a light emitting unit 100, a first electrical connector 102 and a substrate 104, the substrate has a first surface 1040 and a second surface 1042 facing away from each other, the light emitting unit 100 is disposed on the first surface 1040 and is used for emitting visible light, and LED beads are generally used as the light emitting unit 100 in the related art. The first electrical connection member 102 is disposed on the second surface 1042, and is used as a circuit terminal of the light emitting module 10, and the first electrical connection member 102 is electrically connected to the light emitting unit 100.

The assembly 12 is fixed to the light emitting module 10, the assembly 12 is provided with a first structural connector 120, and the first structural connector 120 can be detachably connected with the second structural connector 20, so that the assembly 12 is fixed to the adapter 2, and meanwhile, the light emitting module 10 is indirectly fixed to the adapter 2. When the assembly 12 is fixed to the adapter 2, the first electrical connector 102 and the second electrical connector 22 can be electrically connected to each other, so that the light emitting unit 100 is connected to a circuit.

The first structural connector 120 and the second structural connector 20 may be detachably connected by a structure such as a snap connection, a threaded connection, etc., as shown in fig. 12, the second structural connector 20 in the present embodiment adopts an internal thread, and the first structural connector 120 adopts an external thread structure. Some connection structures have the characteristic of easy disassembly and assembly. Therefore, the assembly 12 of the present embodiment can be conveniently detached from the adapter 2, and the light emitting module 10 can be detached together with the assembly 12, so as to reduce the difficulty of repairing and replacing the light emitting module 10.

In this embodiment, since the adapter 2 is not disassembled, its structure may be relatively complex, and the structure of the light emitting module 10 is preferably relatively simple to be disassembled and replaced. The second electrical connection member 22 includes a first pin 220 and a second pin 222 (see fig. 7) with opposite electrical polarities, and the second electrical connection member 22 further includes an insulating body 224, wherein the first pin 220 and the second pin 222 are integrated with the insulating body 224, and the first pin 220 and the second pin 222 have the same structure, but opposite electrical polarities, and each has a holding portion, an elastic butt portion, and a connecting portion. The holding portion and the insulating body 224 are integrally formed, so that the elastic needle is fixed by the insulating body 224, the elastic butt joint portion is located between the holding portion and the connecting portion, and is used for providing elastic force to enable the holding portion and the connecting portion to relatively displace, and the connecting portion is perpendicular to the elastic butt joint portion and extends beyond the insulating body 224, and is used for electrically connecting with the first electrical connecting piece 102.

In contrast, the first electrical connection 102 includes a first electrical connection 1020 and a second electrical connection 1022 (see fig. 8) with opposite electrical polarities. When the fitting 12 is fixed to the adapter 2, the first pin 220 is in contact with the first electrical connection 1020, and at the same time, the second pin 222 is also in contact with the second electrical connection 1022, in such a way that positive and negative connection of the circuit is completed.

In order to improve the contact success rate, the first electrical connection portion 1020 and the second electrical connection portion 1022 are preferably in the form of contact surfaces, and the contact surface has a larger area and a lower position accuracy requirement, so that the contact success rate is higher. Meanwhile, since the connection between the second electrical connection 22 and the first electrical connection 102 is limited by the second structural connection 20 and the first structural connection 120, especially when the second structural connection 20 and the first structural connection 120 are connected by screw threads, they may stop at any position in the 360 ° planar quadrant, so in order to further reduce the alignment difficulty, the second electrical connection 1022 may be annularly distributed on the periphery of the first electrical connection 1020 (see fig. 8).

Meanwhile, in order to improve the contact effect, the first spring pin 220 and the second spring pin 222 may be spring pins, and can be spring-ejected outwards by a spring to provide better contact performance. In addition, when the second electrical connection portions 1022 are annularly distributed on the periphery of the first electrical connection portion 1020, in order to keep the forces on two sides of the first PIN 220 balanced and prevent moment from being generated, one second PIN 222 may be disposed at two symmetrical positions of the first PIN 220, so that one first PIN 220 and two second PINs 222 together form a 3PIN structure.

In the present embodiment, one adapter 2 may be connected to only one light emitting module 10, but in some cases, one adapter 2 may be connected to a plurality of light emitting modules 10 at the same time based on the requirements of illumination intensity or aesthetic property. At this time, a corresponding number of second structural connectors 20 and second electrical connectors 22 are required to be disposed on the adapter 2.

The second structural connectors 20 and the second electrical connectors 22 may be disposed on the same side of the adapter 2, for example, the area of the lower side of the adapter 2 is increased, two sets of the second structural connectors 20 and the second electrical connectors 22 are disposed side by side, or the second structural connectors 20 and the second electrical connectors 22 may be disposed on different sides of the adapter 2, for example, opposite sides. The second structural connectors 20 and the second electrical connectors 22 are then respectively connected to the different light emitting modules 10 and the assembly 12.

Specifically, the first lamp holder 25 may be located on a first side (e.g., a front side) of the adapter 2, and the second lamp holder 26 may be located on a second side (e.g., a back side) of the adapter 2, so that the two lighting modules 1 are respectively located on two sides of the fixing base 24 facing away from each other by connecting one lighting module 1 to the second structural connectors 22 respectively provided on the first lamp holder 25 and the second lamp holder 26.

In the present embodiment, the position between the light emitting unit 100 and the first electrical connector 102 needs to be carefully considered, so as to avoid affecting the range of the light emitting unit 100 when the light emitting module 10 is fixed to the adapter 2 by the fitting 12. Preferably, the light emitting unit 100 and the first electrical connection member 102 are disposed on two sides (e.g. front and back) of the light emitting module 10, respectively, so that the back of the light emitting module 10 is used for electrical connection, and the front is used for emitting light, so that mutual interference can be substantially avoided.

The basic function of the assembly 12 in this embodiment is to fix the light emitting module 10 to the adapter 2, and the assembly 12 and the light emitting module 10 may be different components, for example, they may be connected by a structure that is easy to disassemble, so that the assembly 12 may be used reciprocally, and recycling is achieved. Of course, the present embodiment does not exclude the light emitting module 10 and the assembly 12 from forming an integral structure, and this structure omits the assembly process of the light emitting module 10 and the assembly 12, so the assembly process can be simplified more, but this method also has the problems of cost waste, lower structural connection strength, and leakage risk.

In the related art, each light emitting module 10 generally has a lamp cover matched thereto, and thus, the present embodiment adopts the lamp cover as the fitting 12. As shown in fig. 9 to 12, the lamp housing 12 (for convenience of description, reference numerals of the assembly are used hereinafter) in the present embodiment has a light emitting portion 122 in addition to the first structural connector 120, the light emitting portion 122 being connected to the first structural connector 120, and the light emitting portion 122 being configured to receive and spread out the outgoing light of the light emitting unit 100. The light emitting unit 122 may provide protection for the light emitting module 10, and may distribute light emitted from the light emitting unit 100. The lamp housing 12 is preferably made of acrylic material, which has both excellent optical properties and good structural strength.

In order to facilitate fixing the light emitting module 10, a receiving cavity 124 may be disposed in the lamp housing 12, the receiving cavity 124 is recessed from one side of the lamp housing 12 to the inside, the light emitting module 10 is disposed in the receiving cavity 124, and the first structural connecting member 120 and the light emitting portion 122 are sequentially disposed along the recessed direction of the receiving cavity 124, that is, the second connecting structural member 20 is disposed at the opening position of the receiving cavity 124.

When the first connecting member 120 is connected to the second connecting member 20, the second electrical connecting member 22 can extend into the opening of the accommodating cavity 124 and electrically connect with the first electrical connecting member 102 of the light emitting module 10, and the light emitting unit 100 faces the bottom of the accommodating cavity 124, that is, the position of the light emitting portion 122. When the lamp housing 12 is detached from the adapter 2, the light emitting module 10 can be taken out from the opening of the accommodating chamber 124.

In order to achieve a better light distribution effect, the lighting module 1 may further include a diffusing portion 14, where the diffusing portion 14 is disposed in the accommodating cavity 124, and the diffusing portion 14 and the light emitting module 10 are sequentially disposed in the accommodating cavity 124 from inside to outside with respect to an opening of the accommodating cavity 124, and the diffusing portion 14 is configured to receive the outgoing light of the light emitting unit 100 and then enter the light emitting portion 122. In this way, the light emitting unit 100 can be distributed with the diffuser 14. The diffusion portion 14 is disposed in parallel with the side wall of the accommodating chamber 124. In a preferred embodiment, the light emitting module 10 may also abut against the diffusion portion 14. Thus, the diffusion portion 14 can also support against the light emitting module 10 to prevent the light emitting module from sliding into the deep part of the accommodating cavity 124, thereby playing a role in assisting positioning.

The light emitting module 10 emits visible light and emits heat, and if the heat is not timely dissipated and gathered together, the heat is easy to cause local overheating, and in serious cases, even fire or explosion can be caused. Therefore, the lighting module 1 of the present embodiment further includes the heat dissipation portion 16, the heat dissipation portion 16 is also disposed inside the lamp housing 12, and the diffusion portion 14, the light emitting module 10 and the heat dissipation portion 16 are disposed inside the accommodating cavity 124 in sequence from inside to outside, that is, the diffusion portion 14 contacts the first surface 1040 of the substrate 104, the heat dissipation portion 16 contacts the second surface 1042 of the substrate 104, and the diffusion portion 14 and the heat dissipation portion 16 sandwich the substrate 104 and the light emitting module 10 therebetween, so that the heat generated by the light emitting module 10 is rapidly conducted out by the heat dissipation portion 16. The heat dissipation portion 16 needs to be careful to avoid the second electrical connection 22, and is therefore preferably arranged in a ring-shaped structure. And, the heat sink portion 16 is preferably substantially flush with the first structural connector 120 so as not to interfere with the connection between the first structural connector 120 and the second structural connector 20.

In the embodiments described above, the differences between the embodiments are mainly described, and as long as there is no contradiction between the different optimization features between the embodiments, the different optimization features may be combined to form a better embodiment, and in consideration of brevity of line text, the description is omitted here.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.

Claims

1. A lighting device is characterized by comprising an adapter and a lighting module, wherein the lighting module comprises an assembly part and a light-emitting module, the assembly part is fixed with the light-emitting module, a first structure connecting piece is arranged on the assembly part,

the light-emitting module comprises a substrate, a light-emitting unit and a first electric connecting piece, wherein the substrate is provided with a first surface and a second surface which are away from each other, the light-emitting unit is arranged on the first surface, the first electric connecting piece is arranged on the second surface, the light-emitting unit is used for emitting visible light,

the first electric connecting piece comprises a first electric connecting part and a second electric connecting part with opposite electric polarities, the light emitting unit is electrically connected with the first electric connecting part and the second electric connecting part,

the adapter is provided with a wiring terminal, a second structural connecting piece and a second electric connecting piece which are mutually fixed; the wiring terminal is used for connecting a power supply and/or a control circuit, the first structural connecting piece and the second structural connecting piece are detachably connected, and the assembly part and the adapter are fixed; the second electrical connector comprises a third electrical connection part and a fourth electrical connection part with opposite electrical polarities, the third electrical connection part is contacted with the first electrical connection part, the fourth electrical connection part is contacted with the second electrical connection part,

the number of the second structural connecting pieces and the second electric connecting pieces on each adapter is at least two and the same, the second structural connecting pieces and the second electric connecting pieces are respectively arranged in groups, each group of the second structural connecting pieces and the second electric connecting pieces are respectively matched with one lighting module,

the second structural connecting pieces and the second electric connecting pieces are respectively arranged on different sides of the adapter in groups,

the adapter is provided with a first side and a second side which are away from each other, the second structural connecting piece and the second electric connecting piece are respectively arranged on the first side and the second side in groups,

the adapter comprises a fixed seat, a first lamp holder and a second lamp holder, and the wiring terminal is positioned on the fixed seat;

2. A lighting device as recited in claim 1, wherein said second electrical connection portions are annularly disposed about said first electrical connection portions.

3. A lighting device as recited in claim 2, wherein said first electrical connection is disposed concentric with said second electrical connection.

4. A lighting device as recited in claim 3, wherein said first electrical connection portion is circular and said second electrical connection portion is annular.

5. A lighting device as recited in any one of claims 1-4, wherein said first electrical connection portion and said second electrical connection portion are electrical connection pads.

6. A lighting device as recited in claim 1, wherein said assembly is a lamp housing, said lamp housing further having a light exit portion, said light exit portion being connected to said first structural connector, said light exit portion being configured to receive outgoing light rays of said light emitting unit and to spread out.

7. A lighting device as recited in claim 6, wherein said lamp housing further comprises a housing cavity, said housing cavity is recessed from one side of said lamp housing, said light emitting module is disposed in said housing cavity, and said first structural connector and said light emitting portion are disposed in sequence along a direction of said recess of said housing cavity.

8. A lighting device as recited in claim 7, further comprising a diffuser portion, said diffuser portion and said light emitting module being disposed in said housing chamber in a sequence from inside to outside and being configured to receive light exiting said light emitting unit into said light exiting portion.

9. A lighting device as recited in claim 8, wherein said diffuser portion is disposed in parallel with a side wall of said receiving chamber.

10. A lighting device as recited in claim 8, wherein said light emitting module is in contact with said diffuser.

11. A lighting device as recited in claim 7, further comprising a heat sink portion, said heat sink portion being disposed within said receiving cavity and in thermal contact with a second surface of said light emitting module.

12. A lighting device as recited in claim 11, wherein said heat dissipation portion is disposed flush with said first structural connection member.

13. A lighting device as recited in claim 1, wherein said first structural connection is threaded.

14. A lighting device as recited in claim 1, wherein said first structural connection is threadably connected to said second structural connection.

15. A lighting device as recited in claim 1, wherein said third electrical connection is a first spring pin and said fourth electrical connection is a second spring pin.

16. The lighting device of claim 15, wherein the number of second pins is two and symmetrically disposed on both sides of the first pin.

17. A lighting device as recited in claim 1, wherein said mounting cavity has a mounting opening extending in a direction perpendicular to a direction from said first side toward said second side, said mounting opening for a lamp fixture and a wiring harness to enter said mounting cavity.

18. A pendant lamp comprising a wiring harness, at least one lamp holder, and a plurality of lighting devices as claimed in any one of claims 1 to 17;

19. The pendant lamp of claim 18, wherein both ends of said wire harness have on-board terminals, said on-board terminals being connected to said terminals.

20. The pendant of claim 19, further comprising a suspension wire, said lamp holder being suspended by said suspension wire.

21. The pendant lamp of claim 20, wherein a hanger hole is provided in the lamp holder, and the hanger is passed through the hanger hole and fixedly connected to the lamp holder.

22. The pendant of claim 20, wherein said lamp holder has a hanger adjustment mechanism thereon for adjusting the relative position of said lamp holder and said hanger.

23. The pendant of claim 22, wherein the hanging wire adjustment mechanism is an adjustment nut capable of tightening/loosening the hanging wire.

24. The pendant of claim 20, further comprising a chassis, wherein the suspension wire is secured to the chassis.

25. A pendant lamp as defined in any one of claims 18-24, wherein the number of lamp holders is plural, and a plurality of said lamp holders are arranged in sequence in a vertical direction.