CN113266808A

CN113266808A - Connector, connection combination, fixing seat, connecting seat and lamp fixing device

Info

Publication number: CN113266808A
Application number: CN202110712992.0A
Authority: CN
Inventors: 马骥; 沈明; 谢建民
Original assignee: Opple Lighting Co Ltd; Suzhou Op Lighting Co Ltd
Current assignee: Opple Lighting Co Ltd; Suzhou Op Lighting Co Ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-08-17

Abstract

The invention provides a connector, a connecting assembly, a fixing seat, a connecting seat and a lamp fixing device, and belongs to the technical field of illumination. The first connector provided by the invention is used for being arranged on an installation basis and comprises a bottom end face, a first electric connecting part and a first magnetic element, wherein the first electric connecting part and the first magnetic element are arranged on the bottom end face, when the bottom end face is arranged opposite to the top end face of the connecting seat, the first magnetic element and a second magnetic element on the connecting seat can be used for realizing mutual adsorption alignment, namely the first magnetic element and the second magnetic element are used for realizing the guide alignment of the first connector and the second connector in the circumferential direction, so that when the first connector and the second connector are connected in a matching mode, a user does not need to try to align repeatedly, and the assembly efficiency is improved.

Description

Connector, connection combination, fixing seat, connecting seat and lamp fixing device

Technical Field

The invention relates to the technical field of lighting, in particular to a connector, a connecting combination, a fixed seat, a connecting seat and a lamp fixing device.

Background

At present, when a lamp is installed, a chassis is installed on the installation basis including a ceiling, then a power module and a light source module are respectively installed on the chassis, and then circuit wiring and a lampshade are covered.

The installation mode enables a user to spend longer time to complete lamp installation, and if the user needs to lift the arm with both hands for a long time to electrically connect the power module with the power supply on the chassis, the installation, maintenance or disassembly process of the lamp is time-consuming and labor-consuming. Moreover, the connection action of the next step can be carried out after the circumferential alignment is carried out in the installation process, the butt joint surfaces of the two are often face to face, and the user can not visually see the butt joint surfaces when connecting the two, so that the circumferential alignment of the two can be completed by repeatedly trying, and the installation efficiency is low.

Disclosure of Invention

In order to solve the problem that the efficiency is lower on the installation basis is installed to lamps and lanterns, this application provides a connector, connection combination, fixing base, connecting seat and lamps and lanterns fixing device on installing the basis with lamps and lanterns fast high-efficient.

In a first aspect, the present invention provides a first connector, disposed on an installation base, for electrically mating with a second connector seat of a lamp to supply power to the lamp; the first connector comprises a bottom end face, a first electrical connection part and a first magnetic element; the first electrical connecting part and the first magnetic element are arranged on the bottom end face.

In the first connector, the first electrical connection part is arranged in the middle of the bottom end surface, and at least two first magnetic elements are arranged around the first electrical connection part; or

The first magnetic element is arranged in the middle of the bottom end face, and the first electrical connecting part is arranged around the first magnetic element; or

The first electrical connecting part and at least two first magnetic elements are arranged on the same circumference at intervals.

In the first connector, a connection line of magnetic poles of the first magnetic element is perpendicular to the surface of the bottom end surface; or the magnetic pole connecting line of the first magnetic element is parallel to the surface of the bottom end surface.

In the first connector, the ends of the at least two first magnetic elements departing from the bottom end face are both N poles or both S poles.

In the first connector, the first electrical connection portion has a rotation structure with a rotation shaft as a rotation center.

In the first connector, the first electrical connecting portion has at least two electrical connecting ends, and the electrical connecting ends are coaxially arranged from inside to outside along the rotating shaft.

In the first connector, the electrical connection end is an accommodating groove, and two adjacent accommodating grooves are insulated from each other.

The first connector further comprises a junction box, wherein the junction box comprises the first electrical connecting part and a shell; the shell comprises wire inlets, and each wire inlet is communicated with each accommodating groove of the first electrical connecting part.

In a second aspect, the present invention provides a second connector, for mating electrical connection with the first connector of any one of the above embodiments, the second connector comprising a top end face, a second electrical connection portion and a second magnetic element, the second electrical connection portion and the second magnetic element being disposed on the top end face; when the top end surface is opposite to the bottom end surface, the second electrical connecting part is used for being electrically connected with the second electrical connecting part, and the directions of the two magnetic poles of the second magnetic element are the same as those of the two magnetic poles of the first magnetic element, so that the first connector and the second connector are mutually attracted and aligned.

In the second connector, the second electrical connection part is arranged in the middle of the top end face, and at least two second magnetic elements are arranged around the second electrical connection part; after the first magnetic element and the second magnetic element are attracted and aligned, the second electrical connecting part and the first electrical connecting part are coaxially arranged; or

The second magnetic element is arranged in the middle of the top end face, and the second electrical connecting part surrounds the second magnetic element; or

The second magnetic element and the second electric connecting part are arranged on the same circumference at intervals.

In the second connector, a connection line of magnetic poles of the second magnetic element is perpendicular to the surface of the top end surface; or the magnetic pole connecting line of the second magnetic element is parallel to the surface of the top end surface.

In the second connector, the ends of the at least two second magnetic elements, which are away from the top end face, are both N poles or both S poles.

In the second connector, the second electrical connection portion is a rotary structure with a rotary shaft as a rotary center.

In the second connector, the second electrical connection portion has at least two conductive terminals, and the conductive terminals are coaxially arranged from inside to outside along the rotating shaft; the conductive terminals correspond to the accommodating grooves of the first connector one by one, and when the first electrical connecting part is matched with the second electrical connecting part, the conductive terminals extend into the corresponding accommodating grooves to realize electrical connection.

The second connector further comprises a first elastic piece, the first elastic piece comprises a first fixed end and a first free end, the first fixed end is connected with the top end face, the first free end is connected with the second magnetic element, so that the second magnetic element is attracted by the first magnetic element, and the top end face can continue to move towards the first connector under the action of external force.

In the second connector, the top end surface is provided with a receiving column hole, and the second magnetic element and the first elastic element are arranged in the receiving column hole; the receiving post aperture has an inner bore sized to receive the first magnetic element.

In a third aspect, the present invention provides a connection assembly, including any one of the first connector and any one of the second connector, wherein the top end surface and the bottom end surface are disposed opposite to each other, and the first magnetic element and the second magnetic element attract each other and align with each other, so that the second electrical connection portion and the second electrical connection portion are butted and inserted to realize electrical connection.

In a fourth aspect, the present invention provides a fixing base, configured to be disposed on an installation base, and mechanically and electrically connected to a connecting base of a lamp for supplying power to the lamp, where the fixing base includes any one of the first connectors described above.

In the above fixing base, the fixing base includes a bottom plate and a first combining portion, the first connector is disposed on the bottom plate, the bottom end face deviates from the bottom plate, and the first combining portion and the first connector are disposed on the same face of the bottom plate.

In the above fixing seat, the first connector is disposed in the middle of the bottom plate, and at least two first combining portions are disposed around the first connector; or

The first combining part is arranged in the middle of the bottom plate, and at least two first connectors are arranged around the first combining part; or

The first combining part and the first connector are respectively arranged on two sides of the bottom plate.

In the above fixing seat, the first combining portion includes a first plate and a second plate, the first plate extends from an edge of the bottom plate to the connecting seat direction, the second plate extends from an extending end of the first plate to a center far away from the fixing seat, and the second plate pushes the slidable tongue plate of the connecting seat to slide along the first direction in a process of approaching the connecting seat; the first plate is provided with a window, and the window is used for the sliding tongue plate to pass through so as to abut against the second plate, or the window is separated from the second plate so as to be separated from the first combining part.

In a fifth aspect, the present invention provides a connecting seat, capable of being connected to a lamp body, and mechanically and electrically connected to a fixing seat on a mounting base in a matching manner, wherein the connecting seat includes the second connector as described above.

In the connecting seat, the connecting seat comprises the top plate and the second combining part, the second connector is arranged on the top plate, the top end surface deviates from the top plate, and the second combining part and the second connector are arranged on the same surface of the top plate.

In the connecting seat, the second connector is arranged in the middle of the top plate, and at least two second combining parts are arranged around the second connector; or

The second combining part is arranged in the middle of the top plate, and at least two second connectors are arranged around the second combining part; or

The second combining part and the second connector are respectively arranged on two sides of the top plate.

In the above connection socket, the second engaging portion can move with the top end surface toward the fixing base to cooperate with the first engaging portion of the fixing base to form a mechanical connection after the second magnetic element and the first magnetic element are attracted, and the second electrical connecting portion cooperates with the first electrical connecting portion to form an electrical connection.

In the connecting seat, the second combining part comprises a hanging groove, a sliding tongue plate, a tongue plate cavity and a second elastic piece; the hanging groove is provided with a notch facing the fixed seat, and the notch is suitable for the first combining part to extend into or out of the hanging groove; the tongue plate cavity is provided with a cavity bottom far away from the hanging groove, and the second elastic piece is arranged between the cavity bottom and the sliding tongue plate; the sliding tongue plate comprises a tongue and a tongue tail which are integrally connected, the tongue tail is close to the cavity bottom, the tongue is far away from the cavity bottom, and the tongue is pressed by the first combining part to slide into the tongue plate cavity when being positioned in the hanging groove and can reset to the hanging groove under the action of the second elastic part and clamp the second plate of the first combining part in the hanging groove.

In the connecting seat, the tongue plate cavity and the hanging groove are internally provided with limiting parts, and the limiting parts limit the sliding tongue plate to move along the connecting line direction of the tongue plate cavity and the hanging groove.

In a sixth aspect, the invention provides a lamp fixing device, which includes the fixing base as described in any one of the above, and the connecting base as described in any one of the above, where the fixing base is matched with the connecting base to achieve mechanical connection and electrical connection, the first magnetic element and the second magnetic element are attracted to each other and aligned, the first connector and the second connector complete alignment to achieve electrical connection, and the first combining portion and the second combining portion complete alignment to achieve mechanical connection.

The first connector provided by the invention is used for being arranged on an installation basis and comprises a bottom end face, a first electric connecting part and a first magnetic element, wherein the first electric connecting part and the first magnetic element are arranged on the bottom end face, when the bottom end face is arranged opposite to the top end face of the connecting seat, the first magnetic element and a second magnetic element on the connecting seat can be used for realizing mutual adsorption alignment, namely the first magnetic element and the second magnetic element are used for realizing the guide alignment of the first connector and the second connector in the circumferential direction, so that when the first connector and the second connector are connected in a matching mode, a user does not need to try to align repeatedly, and the assembly efficiency is improved.

Drawings

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

FIG. 1 is a schematic structural diagram of a connection assembly according to an embodiment of the present invention;

FIG. 2 is a schematic view of the first connector of FIG. 1;

FIG. 3 is a schematic view of the second connector of FIG. 1;

fig. 4 is a schematic structural diagram of a lamp fixing device according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of the fixing base shown in FIG. 4;

FIG. 6 is a schematic view of the connecting socket shown in FIG. 4;

FIG. 7 is an enlarged view of the second joint in FIG. 4;

FIG. 8 is an exploded cross-sectional view of a lamp fixture device applied to a lighting device according to an embodiment of the present invention;

fig. 9 is a sectional view of the lighting device after the fixing base is engaged with the connecting base.

Reference numerals:

100-a first connector; 110-bottom end face; 120-a first electrical connection; 121-a first receiving groove; 122-a second receiving groove; 123-a third containing groove; 130-a first magnetic element; 131-a fastener; 140-a junction box; 141-a housing; 142-a wire inlet;

200-a second connector; 210-a top end face; 211-receiving post holes; 220-a second electrical connection; 221-a first conductive terminal; 222-a second conductive terminal; 223-a third conductive terminal; 230-a second magnetic element; 240-a first resilient member; 241-a first fixed end; 242-a first free end;

300-connecting combinations;

400-a fixed seat; 410-a bottom plate; 420-a first binding moiety; 421-a first plate; 4211-window; 422-a second plate; 423-third plate;

500-a connecting seat; 510-a top plate; 520-a second junction; 521-hanging and connecting groove; 522-sliding tongue plate; 5221-tongue; 5222-lingual tail; 5223-pressed surface; 523-tongue board cavity; 524-a second elastic member; 525-a limiting part; 5251-first limit; 5252-second limit;

600-a luminaire fixture;

700-a lamp body assembly;

710-a lamp body; 711-a light source module; 712-a light distribution element;

800-lighting device.

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 the specific embodiments of the present invention and the accompanying drawings. It should be apparent that the described embodiments are only one component embodiment of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1, fig. 2 and fig. 3, an embodiment of the present invention provides a connection assembly 300, the connection assembly 300 includes a first connector 100 and a second connector 200 used as a pair, and the following describes the structures of the first connector 100 and the second connector 200, respectively.

The first connector 100 may be disposed on an installation base for electrically mating with the second connector 200 on the lamp side to supply power to the lamp. Of course, the first connector 100 may be provided on a non-mounted basis. Correspondingly, the second connector 200 may be disposed at the side of the lamp for electrically matching with the first connector 100 on the installation base.

The first connector 100 includes a bottom end face 110, a first electrical connection 120, and a first magnetic element 130, wherein the first electrical connection 120 and the first magnetic element 130 are disposed on the bottom end face 110. The first electrical connection portion 120 is used for electrically connecting with the second electrical connection portion 220 on the second connector 200, the first magnetic element 130 is used for adsorbing and aligning with the second magnetic element 230 on the second connector 200, and further the first magnetic element 130 and the second magnetic element 230 are used for realizing circumferential guiding and aligning of the first connector 100 and the second connector 200 so as to smoothly realize the electrical connection of the first electrical connection portion 120 and the second electrical connection portion 220, so that when the first connector 100 and the second connector 200 are connected in a matching manner, the aim of repeatedly trying to align by a user is not needed, and the assembly efficiency is improved.

The second connector 200 includes a top end face 210, a second electrical connection 220, and a second magnetic element 230 thereon, wherein the second electrical connection 220 and the second magnetic element 230 are disposed on the bottom end face 110. The second electrical connection portion 220 is used for electrically connecting with the first electrical connection portion 120 on the first connector 100, the second magnetic element 230 is used for adsorbing and aligning with the first magnetic element 130 on the first connector 100, and further the first magnetic element 130 and the second magnetic element 230 are used for realizing circumferential guiding and aligning of the first connector 100 and the second connector 200 so as to smoothly realize the electrical connection of the first electrical connection portion 120 and the second electrical connection portion 220, so that when the first connector 100 and the second connector 200 are connected in a matching manner, the aim of repeatedly trying to align by a user is not needed, and the assembly efficiency is improved.

In the embodiment of the invention, the arrangement positions of the first electrical connection portion 120 and the first magnetic element 130 on the bottom surface 110 can be flexibly changed, and it is preferable that the first magnetic element 130 and the second magnetic element 230 on the second connector 200 can realize adsorption alignment. Meanwhile, the number of the first magnetic elements 130 may be one, two or three, and the like, and the number may also be set as required.

The first electrical connection portion 120 may be disposed in the middle of the bottom end surface 110, and at least two first magnetic elements 130 are disposed around the first electrical connection portion 120. For example, the at least two first magnetic elements 130 are located at the bottom end surface 110 and the first electrical connection portion 120 at the same distance, that is, the at least two first magnetic elements 130 are located on the circumference with the position of the first electrical connection portion 120 as the center. As a modification, the first magnetic element 130 may be disposed in the middle of the bottom end surface 110, and the first electrical connection portion 120 may be disposed around the first magnetic element 130, or the first electrical connection portion 120 and at least two first magnetic elements 130 may be disposed on the same circumference at intervals.

Correspondingly, the positions of the second electrical connection portion 220 and the second magnetic element 230 on the top end surface 210 can be flexibly changed, and it is preferable that the second magnetic element 230 can be aligned with the first magnetic element 130 on the first connector 100 by attraction. Meanwhile, the number of the second magnetic elements 230 may be one, two or three, and so on, and may also be set as required.

The second electrical connection portion 220 can be disposed in the middle of the bottom end surface 110, and at least two second magnetic elements 230 are disposed around the second electrical connection portion 220. For example, the distances between the at least two second magnetic elements 230 and the second electrical connection portion 220 on the bottom surface 110 are all the same, that is, the at least two second magnetic elements 230 are located on the circumference with the position of the second electrical connection portion 220 as the center of the circle, it is obvious that the first magnetic element 130 and the second magnetic element 230 are attracted to each other and aligned to each other, and then the second electrical connection portion 220 and the first electrical connection portion 120 are coaxially disposed. As a modification, the second magnetic element 230 may be disposed in the middle of the top end surface 210, and the second electrical connection portion 220 may be disposed around the second magnetic element 230, or the second electrical connection portion 220 and at least two second magnetic elements 230 may be disposed on the same circumference at intervals.

In the embodiment of the invention, a groove is formed on a surface of the first magnetic element 130 away from the bottom end surface 110, and the fastening member 131 extends into the groove to fix the first magnetic element 130 on the bottom end surface 110, so that the first magnetic element 130 can be closer to the connection seat 500 than the fastening member 131, and the fastening member 131 is prevented from interfering with the adsorption alignment of the first magnetic element 130 and the second magnetic element 230.

Obviously, fixing the first magnetic element 130 by the fastener 131 can make the first magnetic element 130 fixedly arranged on the bottom end face 110, correspondingly, on the second connector 200, the second magnetic element 230 can be movably arranged relative to the top end face 210, specifically along the direction from the first connector 100 to the second connector 200 (the direction perpendicular to the bottom end face 110 or the top end face 210), thereby the bottom end face 110 of the first connector 100 and the top end face 210 of the second connector 200 can also be continuously close to each other after the first magnetic element 130 and the second magnetic element 230 are adsorbed. As a variation, the first magnetic element 130 may be movably disposed on the bottom end surface 110, and correspondingly, the second magnetic element 230 is fixedly disposed on the top end surface 210.

In the embodiment of the present invention, the magnetic connection line of the first magnetic element 130 may be perpendicular to the surface of the bottom end surface 110, and in this case, one end of all the first magnetic elements 130 away from the bottom end surface 110 may be an N pole or an S pole, so as to be capable of attracting to the second magnetic element 230 on the second connector 200. Of course, as a variation, the magnetic pole direction of the first magnetic element 130 may be parallel to the surface of the bottom end surface 110, and the alignment may still be performed by the magnetic pole.

Correspondingly, the magnetic connection line of the second magnetic element 230 may be perpendicular to the top surface 210, and in this case, the end of all the second magnetic elements 230 away from the bottom surface 110 may be an N pole or an S pole, so as to be capable of attracting the first magnetic element 130 on the first connector 100. Of course, as a variation, the magnetic pole direction of the second magnetic element 230 may be parallel to the surface of the tip end surface 210, and the alignment may still be performed by the magnetic pole.

In an embodiment of the present invention, the first electrical connection portion 120 may be a rotation structure with a rotation axis as a rotation center, and the first electrical connection portion 120 has at least two electrical connection ends, and the at least two electrical connection ends are coaxially disposed from inside to outside along the rotation axis. The electrical connection terminals may be receiving slots, two adjacent receiving slots are insulated from each other, and the openings of the receiving slots are disposed away from the bottom surface 110. The number of the electric connection ends (containing grooves) can be two, namely an L pole and an N pole; the number of the electric connection ends can also be three, namely an L pole, an N pole and a grounding pole; of course, more than three are possible. The number of the electrical connection terminals is equal to the number of the conductive terminals on the connecting socket 500. When the electrical connection terminal of the first connector 100 is designed as a receiving slot with electrical connection capability, referring to fig. 2, the receiving slot may include a first receiving slot 121, a second receiving slot 122, and a third receiving slot 123. The edge of the first electrical connection portion 120 is provided with a first receiving cavity which is recessed inwards. The inner wall of the first receiving cavity forms a cylindrical first insulating portion having a certain height, a cylindrical second insulating portion having a height equal to or higher than the height of the first insulating portion is provided in the first insulating portion, and a cylindrical third insulating portion having a height equal to or higher than the height of the second insulating portion is provided in the second insulating portion, an annular first receiving groove 121 is formed between the first insulating portion and the second insulating portion, an annular second receiving groove 122 is formed between the second insulating portion and the third insulating portion, and a circular third receiving groove 123 is provided in the center of the third insulating portion. Wherein, each containing groove is provided with an electrode coupling part which has the electric connection capability.

Correspondingly, the second electrical connection portion 220 of the second connector 200 is a rotary structure with a rotation axis as a rotation center, and the second electrical connection portion 220 has at least two conductive terminals coaxially disposed from inside to outside along the rotation axis, and the conductive terminals correspond to the receiving slots of the first connector 100 one by one. At least two conductive terminals extend into corresponding receiving slots of the first connector 100 to achieve electrical connection. As a variation, at least two receiving slots may be disposed on the second connector 200, and conductive terminals are disposed on the first connector 100, and the conductive terminals of the first connector 100 extend into the corresponding receiving slots on the second connector 200 to realize electrical connection.

As shown in fig. 3, the second electrical connection portion 220 includes a first conductive terminal 221, a second conductive terminal 222, and a third conductive terminal 223 sequentially distributed from outside to inside, and when the first connector 100 is inserted into the second connector 200, the first conductive terminal 221, the second conductive terminal 222, and the third conductive terminal 223 are respectively received in the first receiving groove 121, the second receiving groove 122, and the third receiving groove 123, so as to achieve electrical connection between the first electrical connection portion 120 of the first connector 100 and the second electrical connection portion 220 of the second connector 200.

The first conductive terminal 221 and the second conductive terminal 222 are metal rings respectively adapted to the size and shape of the first receiving groove 121 and the second receiving groove 122, and the third conductive terminal 223 is a metal pin adapted to the size and shape of the third receiving groove 123. By the annular electrical connection arrangement, the contact areas between the first, second and third receiving

grooves

121, 122, 123 and the first, second and third

conductive terminals

221, 222, 223 are increased, and the first, second and third insulating portions completely insulate the first, second and third

conductive terminals

221, 222, 223 at intervals, thereby improving the safety of electricity utilization.

Wherein the axis of the pivot axis of the first connector 100 can be perpendicular to the plane of the bottom end face 110 and the axis of the pivot axis of the second connector 200 can be perpendicular to the plane of the top end face 210. When the first connector 100 and the second connector 200 are mated, the axes of rotation of the two should be collinear.

In the embodiment of the present invention, the first connector 100 may further include a junction box 140. The junction box 140 includes the first electrical connection portion 120 and a housing 141, and the housing 141 includes a wire inlet 142 penetrating through the housing 141. The wire inlets 142 are used for electrically connecting external wires, and the number of the wire inlets 142 may be equal to the number of the receiving slots. When the first electrical connection portion 120 has three receiving slots, the number of the wire inlets 142 is three, and the three wire inlets are an L pole, an N pole and a ground pole. The wire inlet 142 may be oriented perpendicular to the connection line of the two first magnetic elements 130 and perpendicular to the opening direction of the receiving slot.

In the embodiment of the present invention, the second connector 200 may further include a first elastic member 240, and the first elastic member 240 includes a first free end 242 and a first fixed end 241.

First fixed end 241 is connected to top end face 210, first free end 242 is connected to second magnetic element 230, and first free end 242 can reciprocate relative to first fixed end 241 in the direction from first connector 100 to second connector 200, so that second magnetic element 230 can be close to top end face 210 or far away from top end face 210. When the first connector 100 is assembled with the second connector 200, the first connector 100 gradually approaches the second connector 200, so that the first magnetic element 130 and the second magnetic element 230 attract each other, and then the top end surface 210 can continuously move toward the first connector 100 under the pushing of an external force. As a modification, the first magnetic element 130 may be disposed on the bottom end surface 110 to reciprocate along the direction from the first connector 100 to the second connector 200, and correspondingly, the second magnetic element 230 may be fixedly disposed on the top end surface 210.

In the embodiment of the present invention, on the second connector 200, the second magnetic element 230 may be disposed protruding from the top end surface 210, i.e. opposite to the top end surface 210, and the second magnetic element 230 is close to the first connector 100. Specifically, the second connector 200 may include a receiving post hole 211, the receiving post hole 211 is disposed on the top end surface 210, the second magnetic element 230 and the first elastic member 240 are received in the receiving post hole 211, and an inner hole of the receiving post hole 211 has a size suitable for receiving the first magnetic element 130, such that the first magnetic element 130 and the second magnetic element 230 may be located in the receiving post hole 211 after being attracted.

In the embodiment of the present invention, the center of gravity of the first magnetic element 130 on the bottom end surface 110 and the center of gravity of the first electrical connection 120 on the bottom end surface 110 may coincide, and the center of gravity of the second magnetic element 230 on the top end surface 210 and the center of gravity of the second electrical connection 220 on the top end surface 210 may coincide, thereby achieving more stable mating connection of the first connector 100 and the second connector 200.

Of course, the bottom and

top end surfaces

110, 210 may not be absolutely planar, and may allow for some curvature variation. The one first magnetic element 130 may not be strictly only one magnet, and may be one first magnetic element 130 composed of two magnets or three magnets, that is, one first magnetic element 130 may be understood as a group of magnets. Similarly, the second magnetic element 230 may not be strictly only a magnet, and may be a second magnetic element 230 composed of two magnets or three magnets.

Example 2

The embodiment of the invention provides a lamp fixing device 600, which comprises a fixing seat 400 and a connecting seat 500 which are matched with each other. The fixing base 400 is disposed on the installation base and electrically connected to the connecting base 500 of the lamp.

For example, the fixing base 400 may include the first connector 100 of embodiment 1, and the connecting base 500 may include the second connector 200 of embodiment 1, so that the fixing base 400 and the connecting base 500 may be electrically matched. In addition, as shown in fig. 4, 5 and 6, a first coupling portion 420 may be further disposed on the fixing base 400 for forming a mechanical fit with a second coupling portion 520 on the connection base 500.

The fixing base 400 includes a bottom plate 410 and a first combining portion 420, the first connector 100 can be disposed on the bottom plate 410, the bottom end face 110 is disposed away from the back plate, and the first combining portion 420 and the first connector 100 are disposed on the same face of the bottom plate 410. Correspondingly, the connecting socket 500 includes a top plate 510 and a second combining portion 520, the second connector 200 is disposed on the top plate 510, the top end surface 210 is disposed away from the top plate 510, and the second combining portion 520 and the second connector 200 are disposed on the same surface of the top plate 510. When the fixing base 400 and the connecting base 500 are close to each other, the first connector 100 and the second connector 200 are also close to each other, and the first combining portion 420 and the second combining portion 520 are disposed opposite to each other for mechanical engagement. The number of the first combining parts 420 and the second combining parts 520 is the same, and one, two, three, more than two, etc. may be provided.

The first combining portion 420 and the second combining portion 520 can be clamped by press-fitting, i.e. after the two are aligned, they approach each other and then press-fitting, and after the two are aligned, they can be mechanically connected without relative rotation.

In the embodiment of the present invention, on the fixing base 400, the positions of the first connector 100 and the first combining portion 420 disposed on the bottom plate 410 may be set as required. For example, the first connector 100 is disposed at the middle of the base plate 410, and at least two first coupling portions 420 are disposed around the first connector 100. As a modification, the first coupling portion 420 may be disposed in the middle of the bottom plate 410, and at least two first connectors 100 may be disposed around the first coupling portion 420; or the first coupling portion 420 and the first connector 100 are disposed at both sides of the bottom plate 410.

Correspondingly, on the connection socket 500, the positions of the second connector 200 and the second combining part 520 provided on the top plate 510 may be provided as needed. For example, the second connector 200 is disposed at the middle portion of the top plate 510, and at least two second coupling portions 520 are disposed around the second connector 200. As a modification, the second coupling portion 520 may be disposed in the middle of the bottom plate 410, and at least two second connectors 200 may be disposed around the second coupling portion 520; or the second coupling portion 520 and the second connector 200 are disposed at both sides of the top plate 510.

As shown in fig. 5, in the embodiment of the present invention, the first coupling portion 420 may include a first plate 421 and a second plate 422. The first plate 421 extends from the edge of the bottom plate 410 to the connecting socket 500, and the second plate 422 extends from the extending end of the first plate 421 to the center far away from the fixing socket 400. The second plate 422 is used for pushing the slidable tongue plate 522 of the connecting socket 500 to slide along the first direction in the process of approaching the connecting socket 500, and the first plate 421 is provided with a window 4211, and the window 4211 allows the slidable tongue plate 522 to pass through to abut against the second plate 422 so as to connect the first hanging part with the second combining part 520 of the connecting socket 500, or to be separated from the second plate 422 so as to separate the first combining part 420 from the second combining part 520 of the connecting socket 500. In other words, the first plate 421 and the second plate 422 are perpendicular to each other, wherein the second plate 422 may be arranged parallel to the bottom end face 110. In addition, the first combining portion 420 may further include a third plate 423, the third plate 423 is a turned edge that is away from the second plate 422 in the direction of the connection seat 500, and the third plate 423 may prevent the second combining portion 520 from being scratched during assembly and guide the first combining portion 420.

Correspondingly, as shown in fig. 6 and 7, the second engaging portion 520 includes a hanging groove 521, a sliding tongue 522, a tongue cavity 523, and a second elastic member 524. The hanging groove 521 has a notch facing the fixing base 400, and the first hanging part can pass through the notch and extend into or out of the hanging groove 521. The tongue plate chamber 523 has a chamber bottom far from the hanging groove 521, and the second elastic member 524 is disposed between the chamber bottom and the sliding tongue plate 522. The sliding tongue plate 522 comprises a tongue 5221 and a tongue tail 5222 which are integrally connected, the tongue tail 5222 is close to the cavity bottom of the tongue plate cavity 523, the tongue 5221 is far away from the cavity bottom, the tongue 5221 is pressed by the first hanging part and slides into the tongue plate cavity 523 when being positioned in the hanging groove 521, and can be reset to the hanging groove 521 under the action of the second elastic part 524 and abut against the second plate 422 of the first hanging groove 521 in the hanging groove 521, specifically, the second hanging plate is clamped between the groove bottom of the hanging groove 521 and the sliding tongue plate 522, and the groove bottom of the hanging groove 521 is opposite to the groove opening of the groove.

Obviously, in the process of assembling the fixing base 400 and the connecting base 500, in order to make the first magnetic element 130 and the second magnetic element 230 continuously move relatively to be hooked after being attracted, when the first magnetic element 130 and the second magnetic element 230 are attracted, the distance between the bottom of the hooking groove 521 and the first hooking part should be smaller than the retractable stroke of the first free end 242 on the first elastic element 240 relative to the first fixed end 241, specifically, the distance between the bottom of the hooking groove 521 and the second plate 422 of the first hooking part should be smaller than the retractable formation of the first free end 242 relative to the first fixed end 241.

The tongue plate cavity 523 and the hanging groove 521 may have a limiting portion 525 therein for limiting the movement of the sliding tongue plate 522 along the connecting line of the tongue plate cavity 523 and the hanging groove 521. The limiting portion 525 may include a first limiting portion 5251 and a second limiting portion 5252, the first limiting portion 5251 and the second limiting portion 5252 are used to limit the sliding depth of the sliding tongue plate 522 into the tongue plate cavity 523, the first limiting portion 5251 is located on the tongue plate cavity 523 and is disposed close to the fixing base 400, the second limiting portion 5252 is located at the bottom of the hanging groove 521, and the second limiting portion 5252 is far away from the fixing base 400 relative to the first limiting portion 5251.

Of course, in some embodiments, that is, the fixing base 400 may not be provided with the first coupling portion 420, the first magnetic element 130 may be only relied on to achieve mechanical connection with the second magnetic element 230 on the connecting base 500, and such mechanical connection is suitable for the case that the light fixture is extremely light, or other mechanical connection components may be separately provided. Correspondingly, the second coupling portion 520 may not be disposed on the connection socket 500.

In the embodiment of the invention, the fixing base 400 and the connecting base 500 are matched to realize mechanical connection and electrical connection, the first magnetic element 130 and the second magnetic element 230 are attracted and aligned with each other, the first connector 100 and the second connector 200 are aligned to electrically connect, and the first combining portion 420 and the second combining portion 520 are aligned to mechanically connect.

In addition, in the embodiment of the present invention, on the fixing base 400, the center of gravity of the first combining portion 420 on the bottom plate 410 and the center of gravity of the first connector 100 on the bottom plate 410 may coincide; correspondingly, in the connection socket 500, the center of gravity of the second coupling portion 520 on the top plate 510 may coincide with the center of gravity of the second connector 200 on the top plate 510. Thus, the mating connection of the fixing holder 400 and the connection holder 500 is more stable.

The structures of the fixing base 400 and the connection base 500 provided in the embodiment of the invention are described above, and the assembling and disassembling modes of the fixing base 400 and the connection base 500 in the lamp fixing device 600 of the present application are described below.

Referring to fig. 8 and 9, the bottom end surface 110 of the fixing base 400 faces the connecting base 500, the top end surface 210 of the connecting base 500 faces the fixing base 400, and when the top end surface 210 and the bottom end surface 110 approach each other along arrows in the drawing, the attraction force between the first magnetic element 130 and the second magnetic element 230 increases to approach each other, thereby achieving the guiding alignment between the fixing base 400 and the connecting base 500. Meanwhile, the first electrical connection portion 120 and the second electrical connection portion 220 are aligned and partially plugged, and the first hanging portion and the second hanging portion are not connected. Due to the arrangement of the first elastic member 240, after the first magnetic element 130 and the second magnetic element 230 are attracted and aligned, the top end surface 210 can be continuously pushed to the bottom end surface 110, so that the first hanging part is inserted into the hanging groove 521 of the second hanging part to push the tongue 5221 of the sliding tongue 522 (specifically, the pressed surface 5223 of the tongue 5221 is pushed) positioned in the hanging groove 521, the sliding tongue 522 is pushed by the second plate 422 of the first hanging part to move towards the tongue chamber 523, meanwhile, the window 4211 of the first plate 421 gradually extends into the hanging groove 521 from top to bottom, when the second plate 422 moves to the bottom of the hanging groove 521, the window 4211 of the first plate 421 also moves to the horizontal position of the sliding tongue 522, at this time, the sliding tongue 522 is reset under the action of the second elastic member 524, the tongue 5221 is reset into the hanging groove 521 through the window 4211 of the first plate 421 to abut against the second plate 422 in the hanging groove 521, the second plate 422 is clamped between the bottom of the hanging slot 521 and the sliding tongue 522, so that the first hanging part and the second hanging part are clamped, that is, the fixed seat 400 and the connection seat 500 are mechanically and fixedly connected. Meanwhile, the first electrical connection portion 120 and the second electrical connection portion 220 are inserted in place, so that the electrical connection between the fixing base 400 and the connecting base 500 is realized.

When the fixing base 400 and the connecting base 500 are required to be separated, the pressed surface 5223 of the sliding tongue plate 522 is pushed first, so that the sliding tongue plate 522 slides from the hanging groove 521 to the tongue plate cavity 523 through the window 4211 of the first plate 421, the first hanging part moves towards the notch of the hanging groove 521 to be separated from the hanging groove 521, and the first hanging part and the second hanging part are separated. Then, the user continues to increase the distance between the bottom end surface 110 and the top end surface 210, so that the first magnetic element 130 and the second magnetic element 230 are separated, and the connection holder 500 is detached from the fixing holder 400.

Example 3

The embodiment of the invention provides a lamp fixing device 600, which comprises a fixing seat 400 and a connecting seat 500 which are matched with each other. Wherein, the fixing base 400 is used for being arranged on the installation basis and at least forms mechanical fit with the connecting base 500 on the lamp side.

As shown in fig. 1 to 9, the fixing base 400 includes a bottom plate 410, a first coupling portion 420 and a first magnetic element 130, and the first coupling portion 420 and the first magnetic element 130 are disposed on the same surface of the bottom plate 410. The first coupling portion 420 is used for mechanically coupling with the second coupling portion of the connector holder 500, and the first magnetic element 130 is used for being attracted and aligned with the second magnetic element 230 of the connector holder 500. In order to ensure that the mechanical connection between the fixing base 400 and the connecting base 500 is reliable and stable, the center of gravity of all the first magnetic elements 130 on the bottom plate 410 coincides with the center of gravity of all the first coupling portions 420, in other words, the center of gravity of the first magnetic elements 130 on the bottom plate 410 coincides with the center of gravity of the first coupling portions 420 on the bottom plate 410.

Correspondingly, the connecting socket 500 includes a top plate 510, a second coupling portion 520 and a second magnetic element 230, the second coupling portion 520 and the second magnetic element 230 are disposed on the same surface of the top plate 510, the second coupling portion 520 is used for mechanically coupling the first coupling portion 420 of the fixing socket 400, the second magnetic element 230 is used for being attracted and aligned with the first magnetic element 130 of the fixing socket 400, the center of gravity of all the second magnetic elements 230 on the top plate 510 coincides with the center of gravity of all the first coupling portions 420, in other words, the center of gravity of the second magnetic element 230 on the top plate 510 coincides with the center of gravity of the second coupling portion 520 on the top plate 510.

In the embodiment of the present invention, the positions of the first magnetic element 130 and the first coupling portion 420 on the bottom plate 410 can be flexibly set according to the requirement. For example, at least two first magnetic elements 130 are disposed in the middle of the bottom plate 410, and the first combining portion 420 is disposed at the periphery of the first magnetic elements 130; or the first combining part 420 is arranged in the middle of the bottom plate 410, and at least two first magnetic elements 130 are arranged on the periphery of the first combining part 420; alternatively, the first coupling portion 420 and at least two first magnetic elements 130 are disposed on the same circumference at intervals.

Accordingly, the positions of the second magnetic element 230 and the second coupling portion 520 on the top plate 510 can be flexibly set as desired. For example, at least two second magnetic elements 230 are disposed in the middle of the top plate 510, and the second coupling portion 520 is disposed at the periphery of the second magnetic elements 230; or the second combining part 520 is disposed at the middle part of the top plate 510, and at least two second magnetic elements 230 are disposed at the periphery of the second combining part 520; or the second coupling portion 520 and at least two second magnetic elements 230 are spaced on the same circumference.

When the number of the first combining parts 420 and the second combining parts 520 is at least two, and when the number of the first magnetic elements 130 and the second magnetic elements 230 is at least two, the connecting line of the at least two first combining parts 420 is collinear or intersected with the connecting line of the at least two first magnetic elements 130; and at least two second coupling portions 520 collinear with or intersecting a line connecting the at least two second magnetic elements 230.

In addition, the specific structures of the first combining portion 420 and the second combining portion 520 according to the embodiment of the present invention may refer to embodiment 2, the fixing base 400 according to the embodiment of the present invention may include the first electrical connection portion 120 according to embodiment 2, or may not include the first electrical connection portion 120, and the connection set according to the embodiment of the present invention may include the second electrical connection portion 220 according to embodiment 2, or may not include the second electrical connection portion 220.

In the lamp fixing device 600 of the embodiment of the invention, the first magnetic element 130 of the fixing base 400 and the second magnetic element 230 of the connecting base 500 are attracted and aligned, so that the first combining portion 420 of the fixing base 400 and the second combining portion 520 of the connecting base 500 are aligned to be mechanically connected in a matching manner, and the first electrical connection portion 120 of the fixing base 400 and the second electrical connection portion 220 of the connecting base 500 are aligned to be electrically connected in a matching manner.

In addition, the surface of the bottom plate 410 of the fixing base 400 facing the connecting base 500 is defined as a first rectangle, and the surface of the top plate 510 of the connecting base 500 facing the fixing base 400 is defined as a second rectangle. As can be seen from fig. 4 and 8, the long side of the first rectangle is parallel to the short side of the second rectangle, the short side of the first rectangle is parallel to the long side of the second rectangle, and the first rectangle and the second rectangle are stacked and aligned and have the same size, wherein the long side of the first rectangle is equal to the short side of the second rectangle in length. As a variation, the long side of the first rectangle is arranged parallel to the long side of the second rectangle, the short side of the first rectangle is arranged parallel to the short side of the second rectangle, and the first and second rectangles are stacked in alignment and have the same size.

The shape of the fixing base 400 of the embodiment of the present invention may be a rectangular parallelepiped shape as shown in fig. 4, or may not be a rectangular parallelepiped shape, such as a circle, a square, or other shapes, as long as it can be aligned and connected with the connecting base 500. Similarly, the connecting seat 500 may also be rectangular in shape as shown in fig. 4, or may not be rectangular, such as circular, square or other shapes. The shape of the fixing base 400 and the shape of the connecting base 500 may be the same or different.

Example 4

The lamp fixing device 600 according to the embodiment of the present application is described above. As shown in fig. 8, a lighting device 800 having the lamp fixture 600 will be described below.

The connecting socket 500 further includes a light source receiving cavity for receiving the light source module 711, the light source receiving cavity is disposed at the periphery of the second electrical connection portion 220 and has a height corresponding to the axial position of the second electrical connection portion 220. The light source accommodating cavity can also be positioned at the inner ring of the second hanging part. The light source accommodating cavity is formed in the connecting socket 500 at a position corresponding to the height of the second electrical connection portion 220, so that the thickness of the lighting device (the dimension in the direction from the fixing socket 400 to the connecting socket 500) is not increased by the need to provide the light source module 711. Therefore, in the embodiment of the invention, the light source accommodating cavity and the second electrical connection portion 220 are disposed on the connection seat 500 at positions with the same axial height, so as to effectively control the thickness of the connection seat 500 after the light source module 711 is disposed thereon, thereby achieving the purpose of being light and thin.

Further, the embodiment of the invention further provides a lamp body assembly 700, where the lamp body assembly 700 includes the connection seat 500 and the lamp body 710. The lamp body 710 may have a light source module 711, and obviously, the light source module 711 may be received in a light source receiving cavity of the connecting socket 500, and the light source module 711 and the second electrical connecting portion 220 are disposed flush with each other on a plane perpendicular to a direction from the fixing base 400 to the connecting socket 500.

The light source module 711 includes a light source plate and a light emitting unit, the light source module 711 is disposed in the light source accommodating cavity, the light emitting unit emits light back to the fixing base 400, and the light source plate can be attached to the housing 141 of the connecting base 500, so that heat of the light source module 711 can be dissipated quickly.

The lamp body may further include a light distribution element 712, and the light distribution element 712 covers the light source module 711 and the second electrical connection part 220 and is connected to an outer edge of the connection socket 500. The connection mode may be a sealed connection, that is, the light distribution element 712 is hermetically covered by the light source module 711 and the second electrical connection portion 220, so that mosquitoes and insects can be prevented from flying into the light source accommodating cavity to affect the light distribution effect. The light distribution element 712 may be a lamp cover, a diffusion plate, or the like.

Obviously, in the lamp fixing device 600 having the connecting socket 500, the first electrical connection portion 120 of the fixing socket 400 is connected to the second electrical connection portion 220 of the connecting socket 500 to electrically connect the fixing socket 400 and the connecting socket 500, and the first electrical connection portion 120 and the second electrical connection portion 220 are both equal to the height position of the power supply receiving cavity in the axial direction. Therefore, after the fixing base 400 is connected with the connecting base 500 in a matching manner, the lamp fixing device 600 may have a smaller thickness.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The first connector is arranged on the installation basis and is used for being electrically matched with the second connector seat of the lamp to supply power to the lamp; the first connector comprises a bottom end face, a first electrical connection part and a first magnetic element; the first electrical connecting part and the first magnetic element are arranged on the bottom end face.

2. The first connector of claim 1, wherein the first electrical connection portion is disposed in a middle portion of the bottom end face, and at least two of the first magnetic elements are disposed around the first electrical connection portion; or

3. The first connector of claim 1, wherein a line of poles of the first magnetic element is perpendicular to a plane of the bottom end surface; or the magnetic pole connecting line of the first magnetic element is parallel to the surface of the bottom end surface.

4. The first connector according to claim 3, wherein at least two ends of the first magnetic elements facing away from the bottom end surface are both N-poles or both S-poles.

5. The first connector according to claim 1, wherein the first electrical connecting portion is a swivel structure having a swivel axis as a swivel center.

6. The first connector according to claim 5, wherein the first electrical connecting portion has at least two electrical connecting ends, the electrical connecting ends being coaxially arranged from inside to outside along the rotation axis.

7. The first connector according to claim 6, wherein the electrical connection end is a receiving slot, and two adjacent receiving slots are insulated from each other.

8. The first connector of claim 4, further comprising a junction box including the first electrical connection, a housing; the shell comprises wire inlets, and each wire inlet is communicated with each accommodating groove of the first electrical connecting part.

9. A second connector, connectable to a lamp body, in mating electrical connection with the first connector of any one of claims 1-8, the second connector comprising a top end face, a second electrical connection portion and a second magnetic element, the second electrical connection portion and the second magnetic element both disposed on the top end face; when the top end surface is opposite to the bottom end surface, the second electrical connecting part is used for being electrically connected with the second electrical connecting part, and the directions of the two magnetic poles of the second magnetic element are the same as those of the two magnetic poles of the first magnetic element, so that the first connector and the second connector are mutually attracted and aligned.

10. The second connector according to claim 9, wherein the second electrical connection portion is disposed at a middle portion of the top end face, and at least two of the second magnetic elements are disposed around the second electrical connection portion; after the first magnetic element and the second magnetic element are attracted and aligned, the second electrical connecting part and the first electrical connecting part are coaxially arranged; or

11. The second connector of claim 9, wherein the line of the poles of the second magnetic element is perpendicular to the surface of the tip end face; or the magnetic pole connecting line of the second magnetic element is parallel to the surface of the top end surface.

12. The second connector according to claim 11, wherein at least two ends of the second magnetic element facing away from the top end surface are both N-poles or both S-poles.

13. The second connector according to claim 9, wherein the second electrical connecting portion is a swing structure having a swing axis as a swing center.

14. The second connector according to claim 13, wherein the second electrical connection section has at least two conductive terminals coaxially arranged from inside to outside along the rotation axis; the conductive terminals correspond to the accommodating grooves of the first connector one by one, and when the first electrical connecting part is matched with the second electrical connecting part, the conductive terminals extend into the corresponding accommodating grooves to realize electrical connection.

15. The second connector according to claim 9, further comprising a first elastic member, wherein the first elastic member comprises a first fixed end and a first free end, the first fixed end is connected to the top end surface, and the first free end is connected to the second magnetic element, so that the top end surface can continue to move towards the first connector under the action of external force after the second magnetic element is attracted to the first magnetic element.

16. The second connector according to claim 15, wherein a receiving post hole is provided on the top end face, and the second magnetic element and the first elastic member are provided in the receiving post hole; the receiving post aperture has an inner bore sized to receive the first magnetic element.

17. The connection assembly, characterized in that, including the first connector according to any one of claims 1-8 and the second connector according to any one of claims 9-16, the top end face and the bottom end face are disposed oppositely, the first magnetic element and the second magnetic element attract each other and align each other, so that the second electrical connection portion and the second electrical connection portion are butt-jointed to realize electrical connection.

18. The connection combination of claim 17, wherein a center of gravity of the first magnetic element on the bottom end face coincides with a center of gravity of the first electrical connection on the bottom end face; and/or the centre of gravity of the second magnetic element on the tip face coincides with the centre of gravity of the second electrical connection on the tip face.

19. A mounting base for mounting on a mounting base for mechanical and electrical mating connection with a socket of a light fixture for powering the light fixture, the mounting base comprising a first connector as claimed in any one of claims 1 to 8.

20. The anchor block of claim 19, wherein the anchor block includes a base plate and a first engaging portion, the first connector is disposed on the base plate, the bottom end surface is disposed away from the base plate, and the first engaging portion and the first connector are disposed on a same surface of the base plate.

21. The fixed base of claim 20, wherein the first connector is disposed at a middle portion of the base plate, and at least two of the first coupling portions are disposed around the first connector; or

22. The holder according to claim 20, wherein the first engaging portion includes a first plate and a second plate, the first plate extends from an edge of the bottom plate toward the holder seat, the second plate extends from an extending end of the first plate toward a center away from the holder seat, and the second plate pushes the slidable tongue plate of the holder seat to slide along a first direction during approaching the holder seat; the first plate is provided with a window, and the window is used for the sliding tongue plate to pass through so as to abut against the second plate, or the window is separated from the second plate so as to be separated from the first combining part.

23. A connector holder capable of being connected to a lamp body, mechanically and electrically mated with a holder on a mounting base, the connector holder comprising a second connector according to any one of claims 9-16.

24. The connector holder of claim 23, wherein the connector holder includes a top plate and a second engaging portion, the second connector is disposed on the top plate, the top end surface is disposed away from the top plate, and the second engaging portion and the second connector are disposed on the same surface of the top plate.

25. The connector receptacle of claim 24, wherein the second connector is disposed in a middle portion of the top plate, and at least two of the second coupling portions are disposed around the second connector; or

26. The connector receptacle of claim 24, wherein the second engaging portion is capable of engaging with the first engaging portion of the holder to form a mechanical connection and engaging with the second electrical connecting portion to form an electrical connection as the top end surface continues to move toward the holder after the second magnetic element and the first magnetic element are attracted.

27. The connector receptacle of claim 24, wherein the second engaging portion includes a hanging slot, a sliding tongue, a tongue cavity, and a second resilient member; the hanging groove is provided with a notch facing the fixed seat, and the notch is suitable for the first combining part to extend into or out of the hanging groove; the tongue plate cavity is provided with a cavity bottom far away from the hanging groove, and the second elastic piece is arranged between the cavity bottom and the sliding tongue plate; the sliding tongue plate comprises a tongue and a tongue tail which are integrally connected, the tongue tail is close to the cavity bottom, the tongue is far away from the cavity bottom, and the tongue is pressed by the first combining part to slide into the tongue plate cavity when being positioned in the hanging groove and can reset to the hanging groove under the action of the second elastic part and clamp the second plate of the first combining part in the hanging groove.

28. The connector receptacle of claim 27, wherein the tongue cavity and the hooking groove have a limiting portion therein, the limiting portion limiting the movement of the sliding tongue along a line connecting the tongue cavity and the hooking groove.

29. A lamp fixing device, comprising the fixing base according to any one of claims 18 to 22 and the connecting socket according to any one of claims 23 to 28, wherein the fixing base is matched with the connecting socket to achieve mechanical connection and electrical connection, the first magnetic element and the second magnetic element are attracted and aligned with each other, the first connector and the second connector are aligned to achieve electrical connection, and the first combining portion and the second combining portion are aligned to achieve mechanical connection.