CN111911854A - Backplate subassembly and flying saucer lamp - Google Patents

Abstract

The invention provides a back plate assembly and a flying saucer lamp, wherein the back plate assembly comprises a back plate; the mounting disc comprises a buckle structure, the buckle structure comprises a first clamping part and a second clamping part connected with the first clamping part in a bending mode, and a clamping groove used for being rotationally clamped with the back plate is formed between the first clamping part and the second clamping part; the elastic sheet is fixedly connected to the back plate and clamped in the clamping groove to prevent the mounting disc from being separated from the back plate. According to the back plate assembly and the flying saucer lamp, the back plate is rotatably clamped in the clamping groove, the mounting disc and the back plate are convenient to mount, mounting gaps cannot be generated under the influence of gravity, the size precision requirements of the mounting disc and the back plate are reduced, the back plate assembly is further provided with the elastic sheet for preventing the mounting disc from falling off the back plate, and therefore the flying saucer lamp can be prevented from falling off during vibration.

Description

Backplate subassembly and flying saucer lamp

Technical Field

The invention belongs to the technical field of lamps, and particularly relates to a back plate assembly and a flying saucer lamp.

Background

The flying saucer lamp is widely applied in daily life and can be used in indoor places such as auditoriums, meeting rooms, gymnasiums and warehouses. In order to mount the flying saucer lamp on a ceiling or a wall, the bottom of the flying saucer lamp is provided with a mounting plate, and the flying saucer lamp can be fixed on a mounting surface through the mounting plate. The mode of shell fragment joint on the backplate of present mounting disc through pressing and flying saucer lamp makes mounting disc and backplate fixed each other. This kind of mounting means operation is inconvenient, and user experience is not good, and moreover, under the effect of flying saucer lamp self gravity, this kind of fixed mode of press-in is not hard up easily, can produce the installation clearance between mounting disc and the backplate, leads to the flying saucer lamp to drop even.

Disclosure of Invention

The invention aims to provide a back plate assembly to solve the technical problems that installation is inconvenient and an installation disc and a back plate are easy to loosen when a press-in fixing mode is adopted in the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that: there is provided a back plate assembly comprising:

a back plate;

the mounting disc comprises a buckle structure, the buckle structure comprises a first clamping portion and a second clamping portion connected with the first clamping portion in a bending mode, and a clamping groove used for being rotationally clamped with the back plate is formed between the first clamping portion and the second clamping portion;

the elastic piece is used for preventing the mounting disc from falling off and is fixedly connected to the back plate, and the elastic piece is clamped in the clamping groove to prevent the mounting disc from being separated from the back plate.

Further, the mounting disc further comprises a central plate, the first clamping portion is connected with the central plate in a bending mode, the elastic piece is provided with a protruding portion protruding towards the first clamping portion, and the first clamping portion is provided with a clamping hook used for preventing the protruding portion from being separated from the clamping groove.

Furthermore, the side wall of the first clamping portion facing the clamping groove is a first clamping groove wall, the side wall of the second clamping portion facing the clamping groove is a second clamping groove wall, the second clamping groove wall comprises a first straight wall, an inclined wall and a second straight wall which are sequentially connected, and the first straight wall is arranged close to the connection position of the first clamping portion and the second clamping portion; the first straight wall and the second straight wall are parallel to the first clamping groove wall, and the inclined wall and the first clamping groove wall form an included angle so that the width of the clamping groove is gradually increased from the first straight wall to the second straight wall.

Further, the second clamping portion comprises a clamping body portion and a bending portion connected with the clamping body portion, the clamping body portion is connected with the first clamping portion in a bending mode, and the bending portion is arranged towards the central plate in a bending mode.

Further, the connection position of the first clamping part and the central plate is provided with a concave part for increasing the connection strength.

Furthermore, the elastic sheet is provided with a U-shaped groove, so that the elastic sheet is composed of a fixing part and a cantilever part, the fixing part is fixed on the back plate, the cantilever part is clamped in the clamping groove, the protruding part is arranged on the cantilever part, and the back plate is provided with an elastic sheet hole for suspending the cantilever part.

Further, the backplate is last still to have seted up the confession the rotatory rotation of buckle structure dodges the hole, the bullet piece hole with the rotation dodge between the hole have the joint in deflector in the draw-in groove, the free end of cantilever part is just right the deflector, the lopsidedness of deflector sets up and makes first joint portion orientation the protruding direction skew of bellying.

Further, the central plate comprises an annular part and dovetail discs radially connected to the annular part, and at least one of the snap structures is arranged on each dovetail disc.

Further, a hanging hole is formed in the swallowtail tray.

The invention also provides a flying saucer lamp which comprises the back plate assembly.

The back plate assembly and the flying saucer lamp have the beneficial effects that: compared with the prior art, the backboard component has the advantages that the buckle structure on the mounting disc comprises the first clamping portion and the second clamping portion, the first clamping portion and the second clamping portion are bent and connected to form the clamping groove, the backboard is rotatably clamped in the clamping groove, the mounting disc and the backboard are convenient to mount, the mounting gap cannot be generated under the influence of gravity, the size precision requirements of the mounting disc and the backboard are reduced, and the backboard component is further provided with the elastic piece for preventing the mounting disc from falling off from the backboard, so that the flying saucer lamp can be prevented from falling off during vibration.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a perspective structural view of a back plate assembly according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

fig. 3 is a perspective structural view of a mounting plate according to an embodiment of the present invention;

FIG. 4 is a partial enlarged view of B in FIG. 3;

fig. 5 is a perspective structural view of a spring plate according to an embodiment of the present invention;

fig. 6 is an exploded view of a flying saucer lamp according to an embodiment of the present invention;

FIG. 7 is an assembled structural view of a drive assembly according to an embodiment of the present invention;

FIG. 8 is a cross-sectional view of a flying saucer light provided by embodiments of the present invention;

fig. 9 is a perspective view of a drive cassette according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-a light-transmitting cover; 2-a light source assembly; 3-a face ring; 30-a cartridge aperture; 4-a drive assembly; 41-driving the box; 411-box side walls; 412-communication avoidance hole; 413-a second wire passing hole; 42-a drive plate; 421-a plate body; 422-a communication part; 5-a back plate assembly; 51-a back plate; 511-a projectile aperture; 512-rotating avoidance holes; 513-a guide plate; 514-a stop plate; 5140-a first wire passing hole; 52-a spring plate; 520-a U-shaped slot; 521-a fixed part; 522-cantilever part; 5221-a boss; 53-mounting the disc; 531-center plate; 5311-an annular portion; 5312-dovetail tray; 53120 hanging hole; 532-a snap structure; 5320-a recess; 53200-a card slot; 5321-a first snap-in part; 53210-a first slot wall; 53211-a hook; 5322-a second snap-in part; 53221 a clip body; 53222-a bending part; 53223-a second slot wall; 53224-a first straight wall; 53225-inclined walls; 53226-second straight wall.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 5, a backplane assembly 5 according to the present invention will now be described. In one embodiment, the backplate assembly 5 includes a backplate 51, a mounting plate 53, and a spring plate 52. The mounting disc 53 is rotatably clamped with the back plate 51, and the elastic sheet 52 is used for preventing the mounting disc 53 from falling off from the back plate 51. The mounting disc 53 comprises a buckle structure 532, the buckle structure 532 comprises a first clamping portion 5321 and a second clamping portion 5322, the first clamping portion 5321 and the second clamping portion 5322 are connected in a bending mode to form a clamping groove 53200, and when the mounting disc 53 and the back plate 51 are assembled, the mounting disc 53 rotates relative to the back plate 51, so that the back plate 51 is clamped into the clamping groove 53200. Thus, the mounting plate 53 is not loosened in the axial direction of the back plate 51, and the size of the back plate 51 and the mounting plate 53 is required to be lower than that of the press-type mounting plate 53. More specifically, the slot 53200 is U-shaped, the bottom of the slot is the joint of the first engaging portion 5321 and the second engaging portion 5322, and the opening of the slot 53200 is perpendicular to the axial direction of the mounting plate 53, so that the back plate 51 can enter the slot 53200 through the opening when the mounting plate 53 rotates axially. The elastic sheet 52 is fixed on the back plate 51, and when the mounting plate 53 is clamped with the back plate 51, the elastic sheet 52 is also clamped in the clamping groove 53200. Alternatively, the resilient piece 52 may be fixed to the back plate 51 by a fastener such as a screw.

Compared with the prior art, the backboard component 5 provided by the invention has the advantages that the buckle structure 532 on the mounting plate 53 of the backboard component 5 comprises the first clamping portion 5321 and the second clamping portion 5322, the first clamping portion 5321 and the second clamping portion 5322 are bent and connected to form the clamping groove 53200, the backboard 51 is rotatably clamped in the clamping groove 53200, the mounting plate 53 and the backboard 51 are convenient to mount, a mounting gap cannot be generated under the influence of gravity, the size precision requirements of the mounting plate 53 and the backboard 51 are reduced, the backboard component 5 is further provided with the elastic sheet 52 for preventing the mounting plate 53 from falling off from the backboard 51, and accordingly, the flying saucer lamp can be prevented from falling off when being vibrated.

Referring to fig. 3 to 5, in one embodiment, the mounting plate 53 further includes a central plate 531, the first engaging portion 5321 is connected to the central plate 531 in a bent manner, the elastic piece 52 has a protruding portion 5221 protruding toward the first engaging portion 5321, and the first engaging portion 5321 has a hook 53211 for preventing the protruding portion 5221 from being separated from the slot 53200. The plane of the central plate 531 is parallel to the plane of the back plate 51, and the first clamping portion 5321 is connected with the central plate 531 in a bending manner, so that the clamping structure 532 protrudes out of the plane of the central plate 531, and thus, the mounting plate 53 has a clamping space in the axial direction, and an additional protruding mounting structure matched with the clamping structure 532 is not required to be arranged on the back plate 51. Alternatively, the first catching portion 5321 is in the shape of a sheet, and the first catching portion 5321 is perpendicularly connected to the central plate 531. The second engaging portion 5322 may also be formed in a sheet shape and located on the same plane as the first engaging portion 5321, so that the second engaging portion 5322 is also disposed perpendicular to the central plate 531. The hooks 53211 are protruded towards the inside of the slots 53200, so that the width of the slots 53200 at the hooks 53211 can be reduced, when the mounting disc 53 is clamped into the back plate 51, the protrusions 5221 are limited in the slots 53200 by the hooks 53211, and the mounting disc 53 is prevented from moving in the circumferential direction relative to the back plate 51, so that the back plate 51 cannot fall off from the mounting disc 53 even if the flying saucer lamp vibrates.

In another embodiment, the protrusion 5221 of the resilient tab 52 is disposed toward the second locking portion 5322, and the second locking portion 5322 is correspondingly provided with the locking hook for preventing the protrusion 5221 from being disengaged from the locking groove 53200.

Referring to fig. 2 and 5, in one embodiment, the resilient sheet 52 is formed with a U-shaped groove 520, such that the resilient sheet 52 is formed by connecting a fixing portion 521 and a cantilever portion 522, the fixing portion 521 is fixed on the back plate 51, the cantilever portion 522 is clamped in the clamping groove 53200, the protrusion 5221 is disposed on the cantilever portion 522, and the back plate 51 is formed with a resilient sheet hole 511 for suspending the cantilever portion 522. Optionally, the plane of the elastic sheet 52 is parallel to the plane of the back plate 51. When the resilient tab 52 is engaged with the engaging groove 53200, the hook 53211 presses the protrusion 5221 of the cantilever 522 to move the cantilever 522 relative to the fixing portion 521 and enter the engaging groove 53200.

Referring to fig. 2, in one embodiment, the back plate 51 is further provided with a rotation avoiding hole 512 for the rotation of the buckle structure 532, a guide plate 513 clamped in the clamping groove 53200 is disposed between the elastic sheet hole 511 and the rotation avoiding hole 512, an edge portion of the elastic sheet 52 opposite to the free end of the cantilever portion 522 is attached to the guide plate 513, and one side of the guide plate 513 is obliquely disposed to make the first clamping portion 5321 offset toward the protruding direction of the protruding portion 5221. Optionally, the spring plate hole 511 and the rotation avoiding hole 512 are both arc-shaped. When a lamp is ready to be assembled, the mounting plate 53 is fixed on the mounting surface, the rotary avoiding hole 512 of the back plate 51 is rotated to rotate the buckle structure 532, the buckle structure 532 extends into the rotary avoiding hole 512, the clamping groove 53200 is opposite to the guide plate 513, the guide plate 513 and the elastic sheet 52 sequentially enter the clamping groove 53200 by rotating the back plate 51, when the guide plate 513 enters the clamping groove 53200, the guide plate 513 extrudes the first clamping portion 5321 due to the inclined arrangement of one side surface of the guide plate 513, and the buckle structure 532 integrally moves towards the protruding portion 5221 in the axial direction, so that the protruding portion 5221 is prevented from being jacked by the clamping hook 53211, and the protruding portion 5221 can conveniently enter the clamping groove 53200.

Referring to fig. 3 and 4, in one embodiment, a side wall of the first clamping portion 5321 facing the clamping groove 53200 is a first clamping groove wall 53210, a side wall of the second clamping portion 5322 facing the clamping groove 53200 is a second clamping groove wall 53223, the second clamping groove wall 53223 includes a first straight wall 53224, an inclined wall 53225 and a second straight wall 53226 connected in sequence, the first straight wall 53224 and the second straight wall 53226 are both parallel to the first clamping groove wall 53210, and the inclined wall 53225 and the first clamping groove wall 53210 form an included angle so that the width of the clamping groove 53200 is gradually increased from the first straight wall 53224 to the second straight wall 53226. The first straight wall 53224 is disposed near a connection between the first clamping portion 5321 and the second clamping portion 5322. The inclined wall 53225 gradually increases the width of the locking groove 53200 at the inclined wall 53225, so as to prevent the elastic piece 52 from entering the locking groove 53200 under the limitation of the protrusion 5221, and provide a receiving space for the protrusion 5221. First card slot wall 53210 and second card slot wall 53223 are the arc at the junction of first joint portion 5321 and second joint portion 5322 and are connected, and the width of card slot 53200 at the junction of first joint portion 5321 and second joint portion 5322 can be greater than the distance between first straight wall 53224 and second card slot wall 53223, like this for card slot 53200 bottom is broad, prevents that mounting disc 53 from the backsliding in circumference.

In another embodiment, the second slot wall 53223 can be formed by only connecting the first straight wall 53224 and the inclined wall 53225. In another embodiment, the second slot wall 53223 includes a first straight wall 53224, an inclined wall 53225 and a second straight wall connected in sequence, the first straight wall 53224 is parallel to the first slot wall 53210, and the inclined wall 53225 and the second straight wall are both disposed at an angle to the first slot wall 53210. That is, the inclined wall 53225 and the second straight wall are V-shaped, and the second straight wall is slightly inclined toward the first slot wall 53210, so as to further enhance the stable connection between the resilient piece 52 and the fastening structure 532.

Referring to fig. 4, in one embodiment, the second clamping portion 5322 includes a clamping body portion 53221 and a bending portion 53222 connected to the clamping body portion 53221, the clamping body portion 53221 is bent and connected to the first clamping portion 5321, and the bending portion 53222 is bent toward the central plate 531, so that the second clamping portion 5322 is bent toward the center of the mounting plate 53 as a whole to prevent the second clamping portion from interfering with the root and the peripheral area of the cantilever portion 522 of the spring plate 52.

Referring to fig. 4, in one embodiment, a connection portion between the first clamping portion 5321 and the central plate 531 has a recess portion 5320 for increasing the connection strength. The first clamping portion 5321 is connected with the central plate 531 in a bending mode, in order to prevent the bending angle of the first clamping portion 5321 and the central plate 531 from being changed under the action of external force, a concave portion 5320 is arranged at the joint of the first clamping portion 5321 and the central plate 531, the rigidity of the joint is increased through the concave portion 5320, and the first clamping portion 5321 is prevented from being bent reversely relative to the central plate 531 to deform.

Referring to fig. 3, in one embodiment, the central plate 531 includes an annular portion 5311 and dovetail disks 5312 radially connected to the annular portion 5311, each of the dovetail disks 5312 having at least one snap feature 532 disposed thereon. The annular portion 5311 has an opening in the center thereof, which can greatly save the material required for mounting the disk 53. And buckle structure 532 sets up on dovetail 5312, only need set up dovetail 5312 in the place that is provided with buckle structure 532, compares with the mounting disc of disc, and this kind of mounting disc 53 has further saved the material, has reduced raw and other materials cost and the weight of flying saucer lamp. Optionally, two, three or four dovetail disks 5312 of equal number are connected to the annular portion 5311, each dovetail disk 5312 is circumferentially and uniformly arranged, and each dovetail disk 5312 is provided with one, two or more fastening structures 532.

Referring to fig. 3, in one embodiment, the dovetail tray 5312 is provided with hanging holes 53120, and the number, structure and distribution positions of the hanging holes 53120 are not limited herein. The ceiling or the wall is fixed with a hanging piece corresponding to the hanging hole 53120, and the mounting plate 53 is mounted on the hanging piece through the hanging hole 53120, so that the flying saucer lamp is fixed on the ceiling or the wall.

Referring to fig. 6 to 9, the present invention further provides a flying saucer lamp, which includes the back plate assembly 5 in any of the above embodiments.

In one embodiment, the flying saucer lamp further comprises a light source assembly 2, a face ring 3, a driving assembly 4 and the like. The light source assembly 2 is fixed on the face ring 3, the back plate 51 is fixedly connected with the face ring 3, and the driving assembly 4 is clamped between the face ring 3 and the back plate 51. Optionally, the light source assembly 2 and the driving assembly 4 are disposed on opposite sides of the face ring 3. The driving component 4 is electrically connected with the light source component 2 to realize the control of the driving component 4 on parameters such as color temperature, power and the like of the light source component 2.

Optionally, the flying saucer lamp further comprises a light-transmitting cover 1 covering the light source assembly 2, the light-transmitting cover 1 can protect the light source assembly 2, and light emitted by the light source assembly 2 can be homogenized. The light-transmitting cover 1 is fixedly connected with the face ring 3.

Referring to fig. 7 and 8, in one embodiment, the back plate 51 is annular, and the driving assembly 4 is fixed on the side of the back plate 51 facing the face ring 3, so that the driving assembly 4 is disposed off the center of the back plate 51, the space in the central area of the flying saucer lamp is released, the driving assembly 4 is prevented from interfering with the mounting plate 53, and the design of the mounting plate 53 is not limited. More specifically, the driving assembly 4 includes a driving box 41 and a driving plate 42, the driving plate 42 is disposed in the driving box 41, and the driving box 41 is fixedly connected to the back plate 51. Alternatively, the drive cassette 41 and the back plate 51 are snap-fitted by a snap.

Referring to fig. 9, in one embodiment, the driving box 41 is formed with a communication avoiding hole 412, and the driving board 42 includes a board body 421 disposed on the back board 51 and a communication portion 422 disposed through the communication avoiding hole 412. The plate body 421 is fixedly connected to the communication part 422, and the plate body 421 abuts against the side of the back plate 51 facing the surface ring 3. Optionally, the board body 421 and the communication part 422 are vertically connected, and a plane where the communication part 422 is located is parallel to the central axis of the back plate 51. The communication part 422 passes through the driving box 41 through the communication avoiding hole 412, so that the communication part 422 is not covered by the driving box 41, the signal attenuation can be reduced, the communication efficiency is improved, and the interference of the driving box 41 which is too large and the light-transmitting cover 1 of the flying saucer lamp is avoided. Light source subassembly 2 includes the light source of two kind at least colour temperatures, and communication portion 422 is the optional bluetooth, wifi control module, realizes the control to the light source colour temperature, the regulation of power and the control of light intensity through external control ware control communication portion 422, enriches the function of this flying saucer lamp.

Referring to fig. 9, in one embodiment, the driving box 41 has a box sidewall 411 disposed parallel to the plate body 421, the communication avoiding hole 412 is formed on the box sidewall 411, and the face ring 3 is formed with a box hole 30 for the box sidewall 411 to pass through. The communication that the board body 421 passed perpendicularly on the box lateral wall 411 dodges hole 412, and box lateral wall 411 wholly passes box hole 30 and sets up, makes board body 421 pass box lateral wall 411 and the side of face ring 3 to light source module 2, like this, light source module 2 can directly pass through cable, joint isoelectric connection with the board body 421.

Referring to FIG. 7, in one embodiment, the back plate 51 has at least two stop plates 514 for positioning the drive plate 42. The stopper plates 514 are disposed perpendicular to the plate body 421 so that the driving plate 42 is confined in a space surrounded by the respective stopper plates 514. Optionally, the bottom surface of the board body 421 abuts against the back plate 51, the board body 421 has four side surfaces, and correspondingly, the number of the stop plates 514 is four, two of the stop plates are respectively disposed near the edge of the back plate 51 and facing the light source assembly 2, and the other two stop plates abut against the remaining two side surfaces of the board body 421. The backstop board 514 towards light source subassembly 2 is the plane board, and correspondingly, the side of board body 421 towards light source subassembly 2 is the plane, and the side that board body 421 is close to backplate 51 outer edge can be selected to the cambered surface, makes board body 421 be fan-shaped, like this, can make full use of backplate 51's space, increases the installation area of board body 421.

Referring to fig. 7 and 9, in one embodiment, a first wire passing hole 5140 for a cable to pass through is formed on the stopper plate 514 facing the light source assembly 2, and a second wire passing hole 413 opposite to the first wire passing hole 5140 is formed on the driving box 41. The first wire passing hole 5140 and the second wire passing hole 413 are arranged so that a cable on the driving plate 42 can sequentially pass through the stop plate 514 and the driving box 41 to be connected with the light source assembly 2, and the driving assembly 4 and the light source assembly 2 can be more conveniently connected.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A backplane assembly, comprising:

a back plate;

the mounting disc comprises a buckle structure, the buckle structure comprises a first clamping portion and a second clamping portion connected with the first clamping portion in a bending mode, and a clamping groove used for being rotationally clamped with the back plate is formed between the first clamping portion and the second clamping portion;

the elastic sheet is fixedly connected to the back plate and clamped in the clamping groove to prevent the mounting disc from being separated from the back plate.

2. The backplane assembly of claim 1, wherein: the mounting disc further comprises a central plate, the first clamping portion is connected with the central plate in a bending mode, the elastic piece is provided with a protruding portion protruding towards the first clamping portion, and the first clamping portion is provided with a clamping hook used for preventing the protruding portion from being separated from the clamping groove.

3. The backplane assembly of claim 2, wherein: first joint portion towards the lateral wall of draw-in groove is first draw-in groove wall, second joint portion towards the lateral wall of draw-in groove is second draw-in groove wall, second draw-in groove wall is including the first straight wall, the slope wall and the straight wall of second that connect gradually, first straight wall is close to first joint portion with the junction setting of second joint portion, first straight wall with the straight wall of second all with first draw-in groove wall is parallel, the slope wall with first draw-in groove wall is the contained angle setting and makes the width of draw-in groove certainly first straight wall extremely the straight wall of second increases gradually.

4. The backplane assembly of claim 2, wherein: the second clamping portion comprises a clamping body portion and a bending portion connected with the clamping body portion, the clamping body portion is connected with the first clamping portion in a bending mode, and the bending portion is arranged towards the central plate in a bending mode.

5. The backplane assembly of claim 2, wherein: the connection part of the first clamping part and the central plate is provided with a concave part for increasing the connection strength.

6. The backplane assembly of claim 2, wherein: the elastic sheet is provided with a U-shaped groove, so that the elastic sheet is composed of a fixing part and a cantilever part, the fixing part is fixed on the back plate, the cantilever part is clamped in the clamping groove, the protruding part is arranged on the cantilever part, and the back plate is provided with an elastic sheet hole for suspending the cantilever part.

7. The backplane assembly of claim 6, wherein: the backplate still seted up the confession on the rotatory rotation of buckle structure dodges the hole, the bullet piece hole with the rotation dodge have between the hole joint in the deflector in the draw-in groove, the free end of cantilever part is just right the deflector, the lopsidedness of deflector sets up and makes first joint portion orientation the protruding direction skew of bellying.

8. The backplane assembly of claim 2, wherein: the central plate comprises an annular part and dovetail disks radially connected to the annular part, and at least one buckling structure is arranged on each dovetail disk.

9. The backplane assembly of claim 8, wherein: the swallow tail tray is provided with a hanging hole.

10. Flying saucer lamp, its characterized in that: comprising the backsheet assembly of any one of claims 1-9.

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