CN109672040A - Ceiling lamp and its mounting base, socket, contact pin - Google Patents

Abstract

The present invention relates to a kind of ceiling lamp and its mounting bases, socket, contact pin, socket includes Socket casing, clamping metalwork and fixed metalwork are installed in Socket casing, Socket casing one end is equipped with wiring hole, the Socket casing other end opposite with wiring hole is equipped with the socket being inserted into for contact pin, it clamps metalwork and fixed metalwork is arranged in position corresponding with wiring hole, metalwork is clamped under the effect of elasticity close to fixed metalwork to clamp electric wire, two conductive contact pieces are mounted on the position opposite with the socket, two conductive contact pieces are conductively connected with two clamping metalworks and/or fixed metalwork respectively.The spring contact in conductive contact piece and contact pin in this programme socket is saved up strength to ensure to contact well to be not easy to loosen by elastic force and be disconnected, and even if contact pin and socket generate a degree of grafting offset or not in place, it is also ensured that conductive contact is good.In this way, not only fast assembling-disassembling, convenient to use, the service life is high but also simple and reasonable, easily manufactured.

Description

Ceiling lamp and its mounting base, socket, contact pin

Technical field

The present invention relates to field of light fittings more particularly to a kind of ceiling lamps and its mounting base, socket, contact pin.

Background technique

Ceiling lamp is as a kind of important illuminator, with beautiful and generous, brightness is high, safe and reliable, energy saving Etc. series of advantages.Currently, ceiling lamp has been widely used for the various places such as family, office, entertainment place.Currently, inhaling The common installation method used of ceiling light is: firstly, removing the lampshade of ceiling lamp, then punching on the ceiling, hole will after accomplishing fluently Plastic dowel sleeve is pressed into hole, by screw that lamp holder is fixed on the ceiling, is connected electric wire, is finally put on a lampshade.

In traditional installation method, part category is more, complex when installation, will generally have during installation Two people compounding practice together, the set-up time is longer, and is possible to will appear the security risk of electric shock during operation. Furthermore, it is necessary to which scene carries out the disassembly and assembly of lamps and lanterns, it is likely to result in the damage of lamps and lanterns in the process.

A kind of fast-assembling ceiling lamp, including lamp body and fast-assembling knot are disclosed in the patent document of Publication No. CN105135296 Structure, the quick fixation structure are used to the ceiling lamp being fixed on a ceiling or supporter, which includes upper quick assembling coupling With lower quick assembling coupling, quick assembling coupling is fixed on ceiling or supporter on this, which is fixed on the lamp body, the lower fast-assembling Part is equipped with limit guide rail, and quick assembling coupling correspond to the limit guide rail and offers guide-track groove on this, and when assembling, which is pushed into this Realize that assembling is fixed in guide-track groove.It is buckled in limit hole by using the elastic salient point in guide-track groove, so that lower quick assembling coupling pushes away When entering upper quick assembling coupling, it can stop fixing in setting position.The left and right being respectively used to by setting limit for width raised line and limit for height convex block Position and upper and lower position avoid lamp body and control or teetertotter due to there is mobile space, ensure that installation Stability.It further include electrical connector, which includes socket female end and socket male end, which is arranged fast-assembling on this On part, the socket male end is corresponding to be arranged on the lower quick assembling coupling, by when quick assembling coupling fits together on lower quick assembling coupling and this, is somebody's turn to do Socket male end is inserted into the socket female end and forms electrical connection.In the program, using the limit for height raised line, limit for width raised line and elasticity of guide-track groove Salient point realizes fixation physically, is realized and is electrically connected using male and female socket, and the electrical connection of male and female socket is not easy after requiring grafting It loosens to avoid poor contact and fault, and above-mentioned physics fixed structure carries out limiting admittedly respectively from front and back up and down It is fixed, free gap can not be avoided between upper and lower quick assembling coupling completely, it is difficult to ensure that higher positioning accuracy, is difficult to protect in this way The cooperation center at the cooperation center and above-mentioned physics fixed structure of demonstrate,proving male and female socket is able to maintain completely the same benchmark, is easy One in existing physical connection or conductive connection there is stress and concentrates or loosen and fail, and such as to improve cooperation precision will lead Manufacturing cost is caused to increase very much.

Disclose a kind of ceiling lamp in the patent document of Publication No. CN105180031 comprising have and be installed together Lamp body and lampshade are mounted on the intracorporal LED light group of lamp, the lamp body hanging plate on lamp body top surface, the day being installed on ceiling Card hanging plate is equipped with conductive pin and hanging groove on the lamp body hanging plate；It is equipped on the ceiling hanging plate and is used to that conduction is installed The sliding slot of copper sheet and the slide fastener that can be hooked in the hanging groove；The connection of the electrical input of the conductive pin lower end and LED light group, upper end are sliding It is connected after into sliding slot with the conductive copper sheet in slot；It is slided to after the hanging groove side of the lamp body hanging plate is equipped with for slide fastener insertion The slide fastener jack of hanging groove；The conductive copper sheet is connect with external power transmission line.In the program, lamp body is articulated in ceiling hanging plate On, conductive pin and conductive copper sheet connect, because sliding slot hanging structure not enough securely easily loosens, service life is low, hold Easily lead to conductive pin and conductive copper sheet poor contact and fault.

Summary of the invention

In order to solve the above technical problems, the object of the present invention is to provide a kind of ceiling lamp and its mounting base, socket, insert Needle, the spring contact in conductive contact piece and contact pin in socket are saved up strength to ensure to contact well to be not easy to loosen by elastic force and be disconnected, And even if contact pin and socket generate a degree of grafting offset or not in place, it is also ensured that conductive contact is good.In this way, Not only fast assembling-disassembling, convenient to use, service life height, and it is simple and reasonable, it is easily manufactured.

In order to achieve the above-mentioned object of the invention, present invention employs technical solutions below:

A kind of socket of ceiling lamp, including Socket casing (4020), which is characterized in that be equipped in Socket casing (4020) It clamps metalwork (4023) and fixes metalwork (4024), Socket casing (4020) one end is equipped with wiring hole (4022), socket shell Body (4020) other end opposite with wiring hole is equipped with the socket being inserted into for contact pin (304), clamps metalwork (4023) and fixed Metalwork (4024) setting clamps metalwork (4023) under the effect of elasticity close to solid in position corresponding with wiring hole (4022) Determine metalwork (4024) to clamp electric wire, two conductive contact pieces (4025) are mounted on the position opposite with the socket, and two Conductive contact piece (4025) is conductively connected with two clamping metalworks (4023) and/or fixed metalwork (4024) respectively.

Preferably, clamping metalwork (4023) is the metal clips with the v-shaped opening for clamping electric wire, the metal Elastic slice is obliquely installed along electric wire direction of insertion, is equipped on Socket casing (4020) button (4021), the two-arm of button (4021) Fixed metalwork (4024) is extended through to be pressed against on the metal clips；When electric wire is inserted in clamping metalwork (4023) and fixed metal Between part (4024) and when the v-shaped opening of clamped metalwork (4023) clamps, pass through button press (4021) compressed metal bullet Piece is to take out electric wire.

Preferably, conductive contact piece (4025), fixed metalwork (4024) and clamping metalwork (4023) are using conductive Sheet metal punching is bent into, and conductive contact piece (4025) and fixed metalwork (4024) are molded over the same conductive metal sheet On, clamping metalwork (4023) is separately formed.

A kind of mounting base of ceiling lamp, which is characterized in that grafting through-hole (4012), installation are provided in the mounting base (401) Hole (4013) and electrical wire channel holes, grafting through-hole (4012) are provided on the side wall of mounting base, inside mounting base with grafting through-hole (4012) corresponding position is fixed with a kind of socket of ceiling lamp (402) as claimed any one in claims 1 to 3, multiple Mounting hole (4013) is provided with the top of mounting base, and mounting base is fixedly mounted on ceiling by mounting hole (4013) and fastener Or in support plate.

The contact pin matched with a kind of socket of above-mentioned ceiling lamp, which is characterized in that inserted including what interior fit on was fixed Contact (3044) are arranged in needle inner casing (3041) and contact pin shell (3040), contact pin inner casing (3041) front, contact (3044) and electricity Connector (3042) is conductively connected, and contact pin shell (3040) front through-hole, electrical connector (3042) are stretched out in contact (3044) front end Stretch out contact pin inner casing (3041) outside；Contact (3044) is spring contact, when contact pin (304) and socket (402) grafting, the elasticity Contact contacts with conductive contact piece (4025) and generates certain retraction.

Preferably, the elasticity of contact (3044) is provided by pressure spring (3045).

A kind of ceiling lamp, which is characterized in that including contact pin as described above.

The present invention is by adopting the above scheme, the spring contact in conductive contact piece and contact pin in socket passes through elastic force storage Gesture, which ensures to contact well to be not easy to loosen, to be disconnected, and even if contact pin and socket generate a degree of grafting offset or not in place, It is also ensured that conductive contact is good.In this way, not only fast assembling-disassembling, convenient to use, service life height, but also simple and reasonable, system It makes conveniently.

Detailed description of the invention

Fig. 1 is configuration schematic diagram of the invention.

Fig. 2 is the structural schematic diagram of lamp body.

Fig. 3 is the structural schematic diagram (top) of mounting base.

Fig. 4 is the structural schematic diagram (bottom) of mounting base.

Fig. 5 is the structural schematic diagram of lamp body base.

Fig. 6 is the mounting structure schematic diagram of loose piece.

Fig. 7 is the structural schematic diagram of loose piece.

Fig. 8 is the fit structure schematic diagram of loose piece Yu mounting base jack.

Fig. 9 is the Unclosing structure schematic diagram of socket.

Figure 10 is the cooperation schematic diagram (non-grafting) of contact pin and socket.

Figure 11 is the cooperation schematic diagram (grafting) of contact pin and socket.

Wherein, the reference numerals are as follows:

Lamp door 101, ring segment 102, radiate adhesive tape 201, annular lamp bar 202, diffuser plate 203, light guide plate 204, reflecting layer 205, foamed cotton layer 206, backboard 207, cover board 301,

Loose piece 302, tongue 3021, spring retention posts 3022, side wall 3023, convex ribs 3024,

Lamp body base 303, mounting groove 3031, tongue hole 3032, pin holes 3033, card slot 3034, installation space 3035, card Hook portion 3036, loose piece box 3037, spring caulking groove 3038, spring 3039,

Contact pin 304, contact pin shell 3040, contact pin inner casing 3041, electrical connector 3042, grab 3043, contact 3044, first Elastic component 3045,

Mounting base 401, positioning jack 4011, grafting through-hole 4012, mounting hole 4013 position side 4014,

Socket 402, Socket casing 4020, button 4021, wiring hole 4022 clamp metalwork 4023, fixed metalwork 4024, conductive contact piece 4025.

Specific embodiment

The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.

In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", " clockwise ", " inverse The orientation or positional relationship of the instructions such as hour hands " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description originally Invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific side Position construction and operation, therefore be not considered as limiting the invention.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two It is a or more than two, unless otherwise restricted clearly.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be machine Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be Concrete meaning in bright.

In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower" It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above " Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of First feature horizontal height is less than second feature.

A kind of ceiling lamp as described in Figure 1, the mounting base including lamp body and for being mounted in ceiling or support plate 401.The lamp body includes lamp door 101, luminescence component and lamp body base 303, and luminescence component is mounted on lamp door 101 and lamp body base In 303 installation spaces formed.Mounting base 401 is equipped with socket 402 and positioning jack 4011, and lamp body base 303, which is equipped with, lives Block 302 and contact pin 304, lamp body and mounting base 401 are dismountable solid by the mating realization of loose piece 302 and positioning jack 4011 Fixed connection, and be conductively connected by socket 402 and the mating realization of contact pin 304.

In the present embodiment, lamp door 101 and the connection fixed by snap of lamp body base 303.In other embodiments, the two It can also be fixedly connected by structures such as fasteners.

Luminescence component can be conventional LED light dish structure, be also possible to traditional lamp tube structure, in the present embodiment, hair Optical assembly is the surface luminescence structure with light guide plate, thinner；Including diffuser plate 203, light guide plate 204, reflecting layer 205, bubble Cotton layer 206, backboard 207 and the annular lamp bar 202 around light guide plate 204, the surrounding of luminescence component are surrounded by lamp door 101.Annular Lamp bar 202 is that welding LED chip is formed in flexible circuit board.In order to improve the heat dissipation performance of annular lamp bar 202, lamp door 101 is adopted With aluminium circle, filled with heat dissipation adhesive tape 201 between annular lamp bar 202 and aluminium circle, such aluminium circle can do heat transmission.In order to increase dress Effect is adornd, ring segment 102 (such as the wooden circle of annular, becket etc.) can be set between luminescence component and lamp door 101.

As shown in Figure 1 and Figure 2, the lamp body base 303 is equipped with the mounting groove 3031 for accommodating mounting base 401, installation The side of slot is opening, and the tongue hole that tongue 3021 is stretched out for loose piece 302 is provided on the opposite left and right sides wall of mounting groove 3032, the pin holes 3033 for installing contact pin 304 are provided on mounting groove and open opposite other side side wall.Such as Fig. 5, Fig. 6 It is shown, installation space 3035, two sides point of the installation space 3035 in corresponding 3031 position of mounting groove are formed in lamp body base 303 Every being formed with loose piece box 3037, loose piece 302 is mounted in loose piece box 3037 and is covered by cover board 301.Installation space 3035 is in work Several card slots 3034 and pothook 3036 are provided in segment space other than block box, in order to be arranged circuit board etc. zero Part.As shown in Figure 6, Figure 7, the front end of loose piece 302 is equipped with tongue 3021, and 3021 front of tongue is arc-shaped, the left and right two of loose piece 302 Side side wall 3023 is also arc-shaped, several elastic components are installed in the rear end of loose piece 302 and the loose piece box 3037 offsets to promote loose piece 302 tongue 3021 stretches out the tongue hole 3032 on lamp body base 303 under the effect of elasticity.Loose piece uses curved wall, so that Also it can produce a certain range of swing inclination while loose piece slides under the effect of elasticity.Elastic component can be spring, spring Piece etc. in the present embodiment, is equipped with multiple springs 3039, and the rear end of loose piece 302 is groove, and it is fixed to be equipped with multiple springs in groove Position column 3022, is equipped with multiple spring caulking grooves 3038 corresponding with spring retention posts 3022 in loose piece box 3037, and the one of spring 3039 End is connect with spring retention posts 3022, and the other end of spring 3039 is connect with spring caulking groove 3038.For the ease of guide and limit and/ Or smooth sliding, the bottom surface and/or top surface of loose piece 302 are equipped with several convex ribs 3024, loose piece 302 passes through convex ribs and lamp body base 303 and/or 301 sliding contact of cover board.In other embodiments, can also be arranged on the bottom surface and/or top surface of loose piece 302 Several roller balls, loose piece 302 are in rolling contact by roller ball with lamp body base 303 and/or cover board 301, are realized nimbly and freely Movement.It is preferred that the lamp body base 303 and loose piece are plastic part, further preferred loose piece uses the material system of smooth abrasion-proof At.

As shown in Figure 3, Figure 4, positioning jack 4011, grafting through-hole 4012, mounting hole 4013 and electricity are provided in mounting base 401 Line perforation, mounting base 401 have the positioning side 4014 to match with the mounting groove 3031 on lamp body base 303, positioning jack 4011 are provided on the side wall of 401 opposite sides of mounting base, and grafting through-hole 4012 is provided on the other side side wall of mounting base, peace It is fixed with socket 402 in position corresponding with grafting through-hole 4012 inside dress seat, multiple mounting holes 4013 are provided with mounting base Top, mounting base are fixedly mounted on ceiling or support plate by mounting hole 4013 and fastener.Mounting base can be gold Belong to sheet metal component or plastic part, it, can be to fixed in order to guarantee that loose piece tongue 3021 and the smooth abrasion-proof of positioning jack 4011 contact Position jack 4011 carries out smooth treatment, or smooth abrasion-proof coating or smooth abrasion-proof lasso are arranged on positioning jack 4011.

As shown in figure 8, the length of tongue 3021 is greater than the length of positioning jack 4011, tongue 3021 is inserted into positioning jack It is mating by its arcuate front ends and positioning jack 4011 when 4011, in this way, tongue 3021 and positioning jack 4011 are that work is matched It closes.Not only loose piece generate swing when still can adjust automatically positioning and locking, but also the two can adaptively repeat grafting or separation , it is not that dead cooperation has to external force separation.Also, two loose pieces 302 in left and right can push against installation always under the effect of elasticity The two sides of seat 401 avoid lamp body from generating loosening relative to mounting base and are not fixed firmly.

Socket 402 as shown in Fig. 9, Figure 10, Figure 11, including Socket casing 4020 are equipped with folder in Socket casing 4020 Hold metalwork 4023 and fixed metalwork 4024,4020 one end of Socket casing sets that there are two wiring hole 4022, Socket casings 4020 The opposite other end is equipped with the socket that be inserted into for contact pin 304, clamping metalwork 4023 and fixation metalwork 4024 be arranged with connect The corresponding position of string holes 4022, clamping metalwork 4023 is under the effect of elasticity close to fixed metalwork 4024 to clamp electric wire, and two A conductive contact piece 4025 is mounted on position corresponding with the socket, and two conductive contact pieces 4025 are golden with two clampings respectively Belong to part 4023 and/or fixed metalwork 4024 is conductively connected.In the present embodiment, clamping metalwork 4023 is with for clamping electricity The metal clips of the v-shaped opening of line, the metal clips are obliquely installed along electric wire direction of insertion, in this way, when electric wire is inserted in clamping Between metalwork 4023 and fixed metalwork 4024 and when the v-shaped opening of clamped metalwork 4023 clamps, it is necessary to apply external force Electric wire could be pulled out by compressing it on the metal clips, avoided electric wire loosening, self-locking can also be facilitated wiring without tool. For the ease of compressed metal elastic slice, button 4021 is installed on Socket casing 4020, the two-arm of button 4021 extends through fixed metal Part 4024 is pressed against on the metal clips, in this way outside socket by button 4021 can compressed metal elastic slice to take out electricity Line.Conductive contact piece 4025, fixed metalwork 4024 and clamping metalwork 4023 are preferably punched using conductive metal sheet such as copper sheet It is bent into, conductive contact piece 4025 and fixed metalwork 4024 are molded over the same conductive metal on piece, clamp metalwork 4023 is separately formed.

Contact pin 304 as shown in Figure 10, Figure 11, including the contact pin inner casing 3041 and contact pin shell that interior fit on is fixed 3040, contact 3044 is arranged in 3041 front of contact pin inner casing, and contact 3044 and electrical connector 3042 are conductively connected, 3044 front end of contact 3040 front through-hole of contact pin shell is stretched out, electrical connector 3042 is fixed on contact pin inner casing 3041.Contact 3044 is spring contact, When contact pin 304 and 402 grafting of socket, which contacts with conductive contact piece 4025 and generates certain retraction, in this way It saves up strength to ensure to contact well to be not easy to loosen by elastic force and disconnect, and even if contact pin and socket generate a degree of grafting offset It is or not in place, it is also ensured that conductive contact is good.In the present embodiment, the elasticity of contact 3044 is provided by pressure spring 3045.Contact pin 304 rear portions are equipped with grab 3043, and contact pin 304 is inserted into pin holes 3033 out of mounting groove 3031 on lamp body base 303, and passes through Grab 3043 is clasped with pin holes 3033, in this way, contact pin hole wall can stop to insert when contact pin 304 and 402 grafting of socket Needle is retracted to ensure firm plug, while also having certain scope of activities because snapping connection, and contact pin and socket may be implemented Adaptive cooperation, can not only guarantee grafting robust, but also can reduce the required precision of manufacture and assembling, reduce at This.

When installation, mounting base 401 first passes through fastener and is fixed in ceiling or support plate, then inserts electric wire Enter in the wiring hole 4022 of socket 402, then by lamp body along 3031 sleeve of mounting groove in mounting base 401, when inserting, loose piece experience It swings and sliding, the positioning jack for being inserted into the tongue on loose piece reliably in mounting base is realized that the two is fixedly connected, inserted Needle is inserted into socket and realizes conductive connection, completes ceiling lamp installation.It is achieved a fixed connection using loose piece tongue and positioning jack cooperation, It not only realizes the positioning of multi-direction multi-angle and is persistently locked, but also there is good adaptivity；Using contact pin bullet Property plug and socket on the realization that offsets of ferromagnetism steel plate elasticity be conductively connected, contact is well not easy to loosen and disconnect, while also having There is good adaptivity, there is long service life.

It should be pointed out that above embodiments are only representative examples of the invention.The present invention can also there are many deformations.It is all Any simple modification, equivalent change and modification to the above embodiments of essence according to the present invention are considered as belonging to this The protection scope of invention.

Claims (7)

1. a kind of socket of ceiling lamp, including Socket casing (4020), which is characterized in that be equipped with folder in Socket casing (4020) It holds metalwork (4023) and fixes metalwork (4024), Socket casing (4020) one end is equipped with wiring hole (4022), Socket casing (4020) other end opposite with wiring hole is equipped with the socket being inserted into for contact pin (304), clamps metalwork (4023) and fixed gold Belong to part (4024) setting in position corresponding with wiring hole (4022), clamps metalwork (4023) under the effect of elasticity close to fixed Metalwork (4024) is to clamp electric wire, and two conductive contact pieces (4025) are mounted on the position opposite with the socket, and two are led Electric contact piece (4025) is conductively connected with two clamping metalworks (4023) and/or fixed metalwork (4024) respectively.

2. a kind of socket of ceiling lamp according to claim 1, which is characterized in that clamping metalwork (4023) is with use In the metal clips of the v-shaped opening of clamping electric wire, which is obliquely installed along electric wire direction of insertion, Socket casing (4020) On be equipped with button (4021), the two-arm of button (4021) extends through fixed metalwork (4024) and is pressed against on the metal clips；When Electric wire is inserted between clamping metalwork (4023) and fixed metalwork (4024) and the v-shaped opening of clamped metalwork (4023) When clamping, by button press (4021) compressed metal elastic slice to take out electric wire.

3. a kind of socket of ceiling lamp according to claim 1, which is characterized in that conductive contact piece (4025), fixed gold Belong to part (4024) and clamping metalwork (4023) using conductive metal sheet punching is bent into, conductive contact piece (4025) and fix Metalwork (4024) is molded over the same conductive metal on piece, and clamping metalwork (4023) is separately formed.

4. a kind of mounting base of ceiling lamp, which is characterized in that be provided with grafting through-hole (4012), mounting hole in the mounting base (401) (4013) be provided on the side wall of mounting base with electrical wire channel holes, grafting through-hole (4012), inside mounting base with grafting through-hole (4012) corresponding position is fixed with a kind of socket of ceiling lamp (402) as claimed any one in claims 1 to 3, multiple Mounting hole (4013) is provided with the top of mounting base, and mounting base is fixedly mounted on ceiling by mounting hole (4013) and fastener Or in support plate.

5. the contact pin matched with a kind of socket of ceiling lamp described in any one of claims 1 to 3, which is characterized in that packet Interior fit on fixed contact pin inner casing (3041) and contact pin shell (3040) are included, contact is arranged in contact pin inner casing (3041) front (3044), contact (3044) and electrical connector (3042) are conductively connected, before contact pin shell (3040) are stretched out in contact (3044) front end Portion's through-hole, electrical connector (3042) stretch out contact pin inner casing (3041) outside；Contact (3044) be spring contact, when contact pin (304) with When socket (402) grafting, which contacts with conductive contact piece (4025) and generates certain retraction.

6. contact pin according to claim 5, which is characterized in that the elasticity of contact (3044) is provided by pressure spring (3045).

7. a kind of ceiling lamp, which is characterized in that including contact pin as claimed in claim 5.