CN107062169B

CN107062169B - Lamp socket connector, lighting device and lighting system

Info

Publication number: CN107062169B
Application number: CN201710377509.1A
Authority: CN
Inventors: 李锋; 冯学军
Original assignee: Opple Lighting Co Ltd
Current assignee: Opple Lighting Co Ltd
Priority date: 2017-05-25
Filing date: 2017-05-25
Publication date: 2023-07-28
Anticipated expiration: 2037-05-25
Also published as: CN107062169A

Abstract

The invention discloses a lamp holder connector, a lighting device and a lighting system, and belongs to the technical field of lighting. The lamp holder connector comprises a butt joint part, wherein the butt joint part comprises a butt joint port used for butt joint of the light source module, a butt joint channel formed by extending from the butt joint port, and at least two socket terminals positioned in the butt joint channel. The lamp holder connector with a plurality of socket terminals can meet the requirements of dimming and toning of the light source module, and the light-emitting effect is diversified.

Description

Lamp socket connector, lighting device and lighting system

Technical Field

The present invention relates to the field of lighting technology, and in particular, to a socket connector for mounting a light source module, a lighting device, and a lighting system.

Background

Existing lighting systems, such as indoor and outdoor decorative lights, generally include a mounting base, and a lighting device mounted on the mounting base, the lighting device including a socket connector mounted on the mounting base, and a light source module mounted on the socket connector. The light source module can be fixed on the mounting base through the lamp holder connector, so that the light source module can be connected with an external power supply.

A lamp socket connector based on the E14 specification is widely used at present. The periphery of the lamp holder connector is provided with a screw to be connected with an internal thread on the mounting base, the screw of the lamp holder connector is provided with two terminals, one terminal is positioned at the dome of the screw, and the other terminal is a screw body. The internal thread of the mounting base is provided with two terminals electrically connected with the lamp holder connector, wherein the round bottom matched with the dome is one terminal, and the screw body is the other terminal.

Along with the diversified development of LED light source and the diversification of user to the luminous effect demand of light source module, more and more LED light sources need to realize adjusting luminance and mixing of colors control, and the lamp stand connector of present E14 specification has the demand that can't satisfy the light source module and adjust luminance and mix colors because of terminal structure and quantity restriction, leads to the light source module to have the problem that luminous effect is single.

Disclosure of Invention

The present invention is directed to a socket connector for connecting a light source module, which can meet the requirements of dimming and color mixing of the light source module.

In order to achieve the above object, the present invention provides a lamp socket connector having a docking portion including:

the socket comprises a butt joint port for butt joint of the light source module, a butt joint channel formed by extending from the butt joint port, and a socket terminal positioned in the butt joint channel.

Preferably, the butt joint is made based on E14 specifications.

Preferably, the receptacle terminals include peripheral terminals arranged on the same circumference.

Preferably, the receptacle terminal further comprises an intermediate terminal located on the circumferential circle.

Preferably, the butt joint part comprises a bottom plate positioned in the butt joint channel, a plurality of baffles formed on the bottom plate, a mounting cavity is formed between adjacent baffles, and the socket terminal is mounted in the mounting cavity.

Preferably, through holes are arranged on the bottom plate between the adjacent baffles.

Preferably, the docking portion includes a spacer within the docking channel, the spacer overlying the receptacle terminals and including a plug interface aligned with the receptacle terminals.

Preferably, the partition plate is arranged parallel to the bottom plate, and the partition plate is perpendicular to the extending direction of the butt joint channel.

Preferably, the plug interface includes an arcuate aperture aligned with the peripheral terminal and a circular aperture aligned with the intermediate terminal.

Preferably, a flange is formed on the periphery of the partition board, a groove is formed on the inner wall of the butt joint channel, and the flange is clamped in the groove.

Preferably, the peripheral socket includes first and second oppositely disposed portions, third and fourth oppositely disposed portions, the third portion connecting the first and second portions, the fourth portion connecting the first and second portions; the first part, the second part, the third part and the fourth part form a wire accommodating cavity; the edge of the first part is elastically connected with a fifth part, and the fifth part extends into the wire accommodating cavity and abuts against the second part.

Preferably, the first portion is further elastically connected with a sixth portion, and the sixth portion extends away from the wire accommodating area and is disposed on two sides of the first portion with the fifth portion.

Preferably, the fifth and sixth portions are integrally formed.

Preferably, the third portion extends beyond the wire accommodating cavity, a seventh portion and an eighth portion are opposite to each other in a region of the third portion beyond the wire accommodating cavity, and a thimble clamping cavity is formed between the seventh portion and the eighth portion.

Preferably, the inner wall of the butt joint channel is provided with a fool-proof part.

Preferably, the docking portion further comprises a base opening opposite the docking portion, and the socket connector further comprises a base mounted to the base opening.

Preferably, the base is bowl-shaped.

Preferably, the base is provided with a threading threaded hole.

Preferably, the base is formed with a buckle in a protruding manner towards the direction of the butt joint part, and the outer wall of the butt joint part is formed with a clamping groove; the buckle is connected with the clamping groove in a buckling way.

Preferably, the periphery of the abutting portion is formed with threads.

To achieve the above object, the present invention provides a lighting device comprising:

a socket connector as claimed in any preceding claim;

the light source module is mounted to the lamp holder connector butt joint, and comprises a light-emitting unit and at least two ejector pins electrically connected with the light-emitting unit, and the ejector pins are inserted into the socket terminals.

Preferably, the light emitting unit is a WRGB light emitting unit, and the number of the pins is 5 and is respectively connected with the positive electrode of the WRGB light emitting unit, the pin of the W component, the pin of the R component, the pin of the G component and the pin of the B component.

To achieve the above object, the present invention provides an illumination system comprising:

a lighting device as described above;

and the mounting base is fixed in a preset mounting area based on E14 specification, and the lamp holder connector in the lighting device is mounted to the mounting base.

Compared with the prior art, the lamp holder connector, the lighting device and the lighting system provided by the invention have the butt joint part based on E14 specification, and the butt joint part comprises a butt joint interface for butt joint of the light source module, a butt joint channel formed by extending from the butt joint interface, and a socket terminal positioned in the butt joint channel. The lamp holder connector with a plurality of terminals can meet the requirements of dimming and toning of the light source module, and the light-emitting effect is diversified.

Drawings

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

fig. 1 is a perspective view of a lighting device in an exemplary embodiment of the invention;

FIG. 2 is an exploded view of the lighting device of FIG. 1;

FIG. 3 is an exploded view of a light source module of the lighting device shown in FIG. 2;

FIG. 4 is an exploded view of the socket connector of the lighting device of FIG. 2;

FIG. 5 is an exploded view of the mating portion of the socket connector of FIG. 4;

FIG. 6 is a schematic view of the peripheral terminals in the mating portion of FIG. 5;

FIG. 7 is a schematic view of a docking channel in the docking station of FIG. 5;

FIG. 8 is a cross-sectional view of the illumination device shown in FIG. 1 taken along the direction A-A;

FIG. 9 is an enlarged view of the lighting device of FIG. 8 in region B;

FIG. 10 is a cross-sectional view of the illumination device of FIG. 1 taken in the direction C-C, with the ejector pin not being held by the ejector pin holding cavity;

FIG. 11 is a cross-sectional view of the illumination device of FIG. 1 taken in the direction C-C, with the ejector pin being held by the ejector pin holding cavity;

reference numerals:

100-lighting device;

10-a lamp socket connector; 11-a butt joint part; 111-clamping grooves; 112-a docking port; 113-a docking channel; 114-a bottom plate; 1141-a through hole; 115-a baffle; 116-separator; 1161-arc holes; 1162-middle round hole; 1163-flanges; 117-peripheral terminals; 118-an intermediate terminal; 119-inner wall; 1191-concave bars; 1192-fool-proof notch; 1193-holding notch; 120-base port; 12-a base; 121-a buckle; 122-threading a threaded hole; 13-conducting wires;

20-a light source module; 21-a light emitting assembly; 22-an optical element; 23-thimble; 24-connecting the base; 241-guide bosses.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments of the present invention and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The preferred embodiment of the present invention provides a lighting system including a mounting base, and a lighting device removably attached to the mounting base. The mounting base is arranged on a preset mounting area of the lighting device.

As shown in fig. 1, in an exemplary embodiment of the present invention, a lighting device 100 includes a socket connector 10, and a light source module 20 mounted on the socket connector 10. The socket connector 10 is used for being coupled with the mounting base to position the lighting device 100 in a preset mounting area, and the light source module 20 obtains power required by operation through the mounting base to emit illumination light.

The structure of the light source module 20 and the socket connector 10 in the lighting device 100 and the connection relationship therebetween will be described in detail with reference to the accompanying drawings.

As shown in fig. 2 and 3, the light source module 20 includes: the light emitting assembly 21, an optical element 22 covered outside the light emitting assembly 21, a thimble 23 electrically connected with a light emitting unit of the light emitting assembly 21, and a connection base 24 butted with the optical element 22 to form the outer wall of the light source module 20.

The connecting base 24 has a hollow cylindrical structure, an opening end of which is fastened to the optical element 22, and a hole (not numbered) for the ejector pin 23 to pass through is formed in an inner bottom surface opposite to the opening end. After aligning the hole with the ejector pin 23, the connection base 24 is connected with the optical element 22, and the ejector pin 23 passes through the wall of the light source module 20.

Two guide bosses 241 having unequal widths are formed on the outer wall of the connection base 24, and the guide bosses 241 extend outwardly away from the outer wall of the connection base 24.

The socket connector 10 includes a docking portion 11. The docking portion 11 is made based on the E14 specification, and the E14 specification is an international standard for the size of a lamp cap in the lighting device at present, and is a specific limitation on the shape and size of the docking portion 11, which is not described herein. In practical applications, external threads based on the E14 standard may be provided on the outer wall of the docking portion 11, so as to directly fix the docking portion 11 on the E14 standard mounting base. Of course, the abutting portion 11 may be made based on a specification other than E14, such as E12.

The docking portion 11 includes: a docking port 112 for docking the light source module 20, a docking channel 113 formed extending from the docking port 112, and a socket terminal (not numbered) mounted in the docking channel. In practical applications, the docking portion 11 may be substantially cylindrical, and the docking port 112 is opened at one end of the docking portion 11 and extends toward the inside of the docking portion 11 to form a substantially longitudinal docking channel 113.

In practical application, the socket terminals are arranged in the docking channel 113 without exposing, the connection base 24 in the light source module 20 enters the docking channel 113, and the ejector pins 23 are inserted into the socket terminals, so that the docking portion 11 and the light source module 20 are simultaneously and physically connected and electrically connected.

In order to be able to mechanically connect the light source module 20 to the socket connector 10 more reliably, the guide projections 241 and the fool-proof recesses 1192 should be arranged more uniformly in the circumferential direction.

Referring to fig. 4, the socket connector 10 may further include a base 12, the docking portion 11 including a base opening 120 for being opposite to the docking opening 112, and the base 12 being mounted to the base opening 120. In this embodiment, the outer wall of the abutting portion 11 is formed with a clamping groove 111, the base 12 is formed with a protruding buckle 121, and the two are connected in a buckled manner.

The base 12 is approximately bowl-shaped, a hollow structure is formed in the bowl-shaped, the bottom of the bowl-shaped is a plane, and a pair of buckles 121 buckled on the clamping groove 111 are symmetrically formed from the wall of the base 12 towards the butt joint part 11. The end surface of the base 12 remote from the abutting portion 11 is formed with a threading screw hole 122 along the extending direction of the abutting passage. The lead wire 13 is connected to the butt joint 11 after passing through the wire passing screw hole 122. The internal threads of the threaded bore 122 are then interconnected with externally threaded tubes (not shown) on the mounting base so that the base 12 is threadably secured to the mounting base. Wherein the externally threaded tube has a hollow structure through which the lead wire 13 passes.

Referring to fig. 5, the socket terminal includes four peripheral terminals 117 arranged at equal angles on the same circumference, and may further include an intermediate terminal 118 positioned at the center of the circumference. The receptacle terminal 117 and the intermediate terminal 118 are each connected to the wire 13. Of course, the socket terminals can be arranged in other ways according to the requirements, for example, all the socket terminals are arranged on the same circumference and can be arranged at different angles.

The intermediate terminal 118 includes: the device comprises a first support (not shown) fixed in the mounting cavity and provided with a threading hole, a second support (not shown) connected with the first support, and a circular ring clamping piece connected with the second support. The second support piece is clamped with the lead wire of the mounting base, and the annular clamping piece clamps the thimble 23, so that the socket terminal is electrically connected with the thimble 23.

Referring to fig. 6, the peripheral terminal 117 has a wire receiving cavity (not numbered) electrically connected to the wire, and a thimble clamping cavity (not numbered) electrically connected to the thimble 23 of the light source module 20. Wherein the wire receiving cavity and the thimble clamping cavity are respectively arranged at two ends of the peripheral socket 117.

The peripheral terminal 117 includes a first portion 1171 and a second portion 1172 disposed opposite to each other, a third portion 1173 and a fourth portion 1174 disposed opposite to each other, the third portion 1173 connecting the first portion 1171 and the second portion 1172, the fourth portion 1174 connecting the first portion 1171 and the second portion 1172, and the first portion 1171, the second portion 1172, the third portion 1173 and the fourth portion 1174 forming a wire receiving cavity for electrically connecting the wires.

The edge of the first portion 1171 is elastically connected with the fifth portion 1175, the fifth portion 1175 extends into the wire accommodating cavity and is abutted against the second portion 1172, a semicircular notch (not shown) for the wire to pass through is formed on the edge abutted against the second portion 1172, when the wire passes through the fifth portion 1175, the fifth portion 1175 is stressed to further extend into the wire accommodating cavity, and the distance between the edge abutted against the second portion 1172 and the second portion 1172 is increased, so that the wire can pass through smoothly; when the wire is stopped from being inserted, the fifth portion 1175 is released from the force and is reset to the outside of the wire housing cavity, and the distance between the edge abutting against the second portion 1172 and the second portion 1172 is reduced, so that the wire is clamped between the second portion 1172 and the fifth portion 1175.

The first portion 1171 is also elastically connected with a sixth portion 1176, and the sixth portion 1176 extends away from the wire receiving region and is disposed on both sides of the first portion 1171 with the fifth portion 1175. After the peripheral terminal 117 is pressed into the mounting cavity 113 of the docking channel from the docking port 112, the sixth portion 1176 is pressed, so that the peripheral terminal 117 is clamped in the mounting cavity and is not easy to separate from the mounting cavity.

In practice, fifth portion 1175 and sixth portion 1176 may be integrally formed.

The third portion 1173 extends beyond the wire accommodating cavity, a seventh portion 1177 and an eighth portion 1178 are disposed in a region of the third portion 1173 beyond the wire accommodating cavity, the seventh portion 1177 and the eighth portion 1178 are two opposite C-shaped like elastic pieces, and an ejector pin clamping cavity for clamping the ejector pin 23 and electrically connecting with the ejector pin 23 is formed between the seventh portion 1177 and the eighth portion 1178.

In practical applications, the peripheral terminal 117 and the intermediate terminal 118 may be formed by bending a metal conductive sheet, which have certain elasticity.

Referring back to fig. 5, the socket connector 10 further includes a spacer 116, the spacer 116 having a circular sheet shape, made of an insulating material such as rubber, pressed from the docking port 112 into the docking channel 113 and covering the socket terminals.

The partition 116 has a plug opening formed therein in alignment with the ejector pin 23 for the ejector pin 23 to pass through the plug opening and then connect with the receptacle terminal. The number of the connectors is five, and the connectors comprise four arc-shaped holes 1161 which are arranged on the same circumference at equal angles and are aligned with the peripheral terminals 117; the center of the arc hole 1161 overlaps the center of the partition 116. The interface may also include a central circular hole 1162 at the center of the bulkhead 116 aligned with the central terminal 118.

A flange 1163 is formed on the outer wall of the partition 116 in the radial direction, a concave bar 1191 corresponding to the flange 1163 is formed on the inner wall 119 surrounding the butt joint channel 113 in the axial direction, and the flange 1163 is clamped in the concave bar 1191 so as to realize foolproof assembly of the partition 116 and the inner wall 119.

The inner wall 119 is provided with a foolproof portion (not numbered), and the cross section of the butt joint channel 113 along the extending direction of the butt joint channel is not centrosymmetric. In this embodiment, the fool-proof portion includes fool-proof notches 1192. The number of the fool-proof notches 1192 is two, the fool-proof notches 1192 are oppositely arranged on the inner wall 119, and the width sizes of the fool-proof notches 1192 are different. The number of the fool-proof notches can be only one, or three, four, etc. Of course, the fool-proof portion on the inner wall 119 may be in the form of a fool-proof protrusion, or a combination of fool-proof protrusions and fool-proof notches.

On the inner wall 119 adjacent to the interface 112, a clamping notch 1193 penetrating the fool-proof notch 1192 is provided, and the clamping notch 1193 is formed by extending from the guiding notch along the circumferential direction of the inner wall 119.

Referring to fig. 7, the socket connector 10 may further include a bottom plate 114 positioned in the docking channel 113, and a baffle 115 formed on the bottom plate 114 and dividing the docking channel 113 into a plurality of mounting cavities (not numbered), the bottom plate 114 supporting the socket terminals in the docking channel 113, i.e., limiting the depth position of the socket terminals in the docking channel 113.

In the docking channel 113, a groined type baffle 115 is formed from the bottom plate 114 along the extending direction of the docking channel 113, and the docking channel is divided into five installation cavities by the groined type baffle 115. The five mounting cavities include four mounting cavities arranged on the same circumference at equal angles for mounting the peripheral terminals 117, and may further include a mounting cavity having a square cross section and positioned at the center of the four mounting cavities for mounting the intermediate terminals 118. Of course, the form of the baffles may vary, as may the number of mounting cavities for mounting the receptacle terminals. The bottom plate 114 is formed with a through hole 1141 through which a wire from the mounting base passes, and the through hole 1141 is located on the bottom plate 114 between the adjacent barrier plates 115.

In the docking channel, the partition 116 is disposed in parallel with the bottom plate 114, and the partition 116 is perpendicular to the extending direction of the channel, that is, the partition 116 is perpendicular to the extending direction of the baffle 115, so that the partition 116 can be reliably installed in the docking channel and is not easily displaced.

The connection relationship between the socket connector 10 and the light source module 20 is described in detail below with reference to fig. 2, 8 to 11.

Pushing the thimble 23 of the light source module 20 toward the abutting portion 11 along the direction D1 in fig. 2, and aligning the guide boss 241 with the fool-proof notch 1192; the connecting base 24 is inserted into the butting part 11 from the butting port 112, the ejector pins 23 penetrate through and are inserted into socket terminals, wherein the ejector pins 23 at the periphery are inserted into the peripheral terminals 117, and the ejector pins at the center are inserted into the middle terminals 118 to realize connection; referring to fig. 10, the outer thimble 23 is at the front opening of the thimble clamping cavity, and does not reach the thimble clamping cavity formed by the seventh portion 1177 and the eighth portion 1178, and at this time, the thimble 23 is not clamped; as shown in fig. 2, when the light source module 20 is horizontally rotated along the direction D2, the guiding boss 241 enters the clamping notch 1193 to mechanically connect the light source module 20 with the socket connector, and at the same time, the peripheral thimble 23 is converted from the state shown in fig. 10 to the state shown in fig. 11, i.e. the thimble 23 is screwed into the thimble clamping cavity, and clamped by the seventh portion 1177 and the eighth portion 1178, and the middle thimble is still connected with the middle terminal 118. The light source module 20 and the docking portion 11 are connected as shown in fig. 8 and 9.

The lamp socket connector 10 of the embodiment of the invention is provided with at least two terminals, and two ends of each terminal are respectively connected with a wire of the mounting base and a thimble of the light source module 20. The lamp socket connector 10, when having two terminals, can meet the condition of brightness adjustment of the light source module 20; when three terminals are provided, the condition of adjusting the color temperature of the light source module 20 can be satisfied; when four terminals are provided, the condition of RGB color matching of the light source module 20 can be satisfied; when five terminals are provided, the condition of RGBW toning of the light source module 20 can be satisfied; with more terminals, the more complex toning requirements can be met. When the lamp socket connector 10 has five terminals, the light emitting units in the lighting device are WRGB light emitting units, and the number of the pins is 5 and is respectively connected with the positive electrode of the WRGB light emitting unit, the pin of the W component, the pin of the R component, the pin of the G component and the pin of the B component.

The docking portion 11 of an embodiment of the present invention may have only two or three or four mounting cavities therein. Similarly, the socket connector 10 may have two or three or four or more terminals therein; the light source module 20 has two or three or four or more pins; two or three or four or more sockets are formed in the partition 116.

In the embodiment of the present invention, the lighting device 100 is mounted to a predetermined area such as a ceiling, a wall, etc. through a mounting base, and may also be mounted as a detachable assembly into a lamp body such as a desk lamp, a festive lantern, a decorative lamp, or a pendant lamp.

In this embodiment, the lighting system should have a control circuit electrically connected to the light source module 20, and the control circuit has a micro controller MCU therein for achieving the purpose of dimming and color mixing.

While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be had by the present invention, it should be understood that the foregoing description is merely illustrative of the present invention and that no limitations are intended to the scope of the invention, except insofar as modifications, equivalents, improvements or modifications may be made within the spirit and principles of the invention.

Claims

1. A lamp socket connector, comprising: the butt joint part comprises a butt joint port used for butt joint of the light source module, a butt joint channel formed by extending from the butt joint port and a socket terminal positioned in the butt joint channel;

the butt joint part comprises a baffle plate positioned in the butt joint channel, the baffle plate covers the socket terminal and comprises a plug-in port aligned with the socket terminal, and the plug-in ports are not communicated with each other on the baffle plate;

the socket terminal comprises peripheral terminals which are arranged on the same circumference, the socket terminal further comprises a middle terminal which is positioned on the circle center of the circumference where the peripheral terminals are positioned, and the plug-in port comprises an arc-shaped hole aligned with the peripheral terminals and a round hole aligned with the middle terminal.

2. The lamp socket connector of claim 1, wherein the interface is made based on E14 gauge.

3. The lamp socket connector of claim 2, wherein the docking portion comprises a bottom plate positioned in the docking channel, a plurality of baffles formed on the bottom plate, a mounting cavity formed between adjacent baffles, and the socket terminal is mounted in the mounting cavity; through holes are arranged on the bottom plates between the adjacent baffle plates.

4. A socket connector according to claim 3, wherein the partition is arranged in parallel with the base plate, the partition being perpendicular to the direction of extension of the docking channel.

5. The lamp socket connector of claim 1, wherein the spacer has a flange formed on a periphery thereof, and the docking channel has a recess formed on an inner wall thereof, the flange being retained in the recess.

6. The lamp socket connector of claim 2, wherein the peripheral terminal comprises oppositely disposed first and second portions, oppositely disposed third and fourth portions, the third portion connecting the first and second portions, the fourth portion connecting the first and second portions; the first part, the second part, the third part and the fourth part form a wire accommodating cavity; the edge of the first part is elastically connected with a fifth part, and the fifth part extends into the wire accommodating cavity and abuts against the second part.

7. The lamp socket connector of claim 6, wherein a sixth portion is also resiliently connected to the first portion, the sixth portion extending away from the wire receiving cavity and being disposed on either side of the first portion from the fifth portion.

8. The lamp socket connector of claim 7, wherein the fifth portion and sixth portion are integrally formed.

9. The lamp socket connector of claim 6, wherein the third portion extends beyond the wire receiving cavity, and wherein a seventh portion and an eighth portion are disposed opposite each other in a region of the third portion beyond the wire receiving cavity, the seventh portion and the eighth portion defining a thimble clamping cavity therebetween.

10. The lamp socket connector according to claim 1, wherein the inner wall of the docking channel is provided with a foolproof portion.

11. The lamp socket connector of claim 1, wherein the docking portion further comprises a base opening opposite the docking opening, the lamp socket connector further comprising a base mounted to the base opening.

12. The socket connector of claim 11, wherein the base is bowl-shaped.

13. The lamp socket connector of claim 11, wherein the base is provided with a threaded hole.

14. The lamp socket connector according to claim 11, wherein the base is formed with a buckle protruding toward the docking portion, and the docking portion is formed with a clamping groove on an outer wall thereof; the buckle is connected with the clamping groove in a buckling way.

15. The lamp socket connector of claim 1, wherein the mating portion is peripherally formed with threads.

16. A lighting device, comprising:

a socket connector as claimed in any one of claims 1 to 15;

17. A lighting device as recited in claim 16, wherein said light emitting units are WRGB light emitting units, and said pins are 5 in number and are connected to a positive electrode of said WRGB light emitting unit, a pin of a W component, a pin of an R component, a pin of a G component, and a pin of a B component, respectively.

18. A lighting system, comprising:

the lighting device of claim 16 or 17;