Back panel assembly and UFO light

Abstract

The present invention provides a back panel assembly and a UFO light, the back panel assembly includes a back panel; a mounting plate, the mounting plate includes a snap structure, the snap structure includes a first snap portion and a second snap portion bent and connected to the first snap portion, a snap groove for rotationally snapping with the back panel is formed between the first snap portion and the second snap portion; a spring sheet fixedly connected to the back panel, the spring sheet snapped in the snap groove to prevent the mounting plate from being separated from the back panel. In the back panel assembly and the UFO light provided by the present invention, the back panel is rotationally snapped in the snap groove, the mounting plate and the back panel are easy to install, and no installation gap is generated under the influence of gravity, reducing the dimensional accuracy requirements for the mounting plate and the back panel, the back panel assembly also has a spring sheet for preventing the mounting plate from falling off the back panel, thereby preventing the UFO light from falling off during vibration.

Description

Technical Field

[0001] The invention belongs to the technical field of lamps, and more specifically, relates to a back panel component and a flying saucer lamp. Background Art

[0002] UFO lights are widely used in daily life and can be used in indoor places such as auditoriums, conference rooms, gymnasiums, warehouses, etc. In order to install the UFO light on the ceiling or wall, the bottom of the UFO light has a mounting plate, and the UFO light can be fixed to the mounting surface by the mounting plate. The current mounting plate is pressed and connected with the spring clip on the back plate of the UFO light so that the mounting plate and the back plate are fixed to each other. This installation method is inconvenient to operate and the user experience is not good. Moreover, under the action of the UFO light's own gravity, this press-in fixing method is easy to loosen, and an installation gap will be generated between the mounting plate and the back plate, and even cause the UFO light to fall. Summary of the invention

[0003] The object of the present invention is to provide a back plate assembly to solve the technical problems in the prior art that the installation is inconvenient and the installation plate and the back plate are easy to loosen when a press-in fixing method is adopted.

[0004] To achieve the above object, the technical solution adopted by the present invention is: to provide a backplane assembly, comprising:

[0005] Back panel;

[0006] The mounting plate comprises a buckle structure, wherein the buckle structure comprises a first buckle portion and a second buckle portion bent and connected to the first buckle portion, and a buckle groove for rotatably buckling with the back plate is formed between the first buckle portion and the second buckle portion;

[0007] The spring piece is used to prevent the mounting plate from falling off and is fixedly connected to the back plate. The spring piece is clamped in the clamping slot to prevent the mounting plate from being separated from the back plate.

[0008] Furthermore, the mounting plate also includes a center plate, the first clamping portion is bent and connected to the center plate, and the spring sheet has a protrusion protruding toward the first clamping portion, and the first clamping portion has a hook for preventing the protrusion from escaping from the slot.

[0009] Further, the side wall of the first clamping portion facing the clamping slot is a first clamping slot wall, the side wall of the second clamping portion facing the clamping slot is a second clamping slot wall, the second clamping slot wall includes a first straight wall, an inclined wall, and a second straight wall connected in sequence, the first straight wall is arranged near the connection between the first clamping portion and the second clamping portion; the first straight wall and the second straight wall are both parallel to the first clamping slot wall, the inclined wall is arranged at an angle to the first clamping slot wall so that the width of the clamping slot gradually increases from the first straight wall to the second straight wall.

[0010] Furthermore, the second clamping portion includes a clamping body portion and a bending portion connected to the clamping body portion, the clamping body portion is bent and connected to the first clamping portion, and the bending portion is bent toward the center plate.

[0011] Furthermore, a recessed portion for increasing connection strength is provided at a connection point between the first clamping portion and the center plate.

[0012] Furthermore, a U-shaped groove is provided on the spring sheet, so that the spring sheet consists of a fixed part and a cantilever part, the fixed part is fixed to the back plate, the cantilever part is clamped in the clamping groove, the protrusion is arranged on the cantilever part, and the back plate is provided with a spring sheet hole for suspending the cantilever part.

[0013] Furthermore, a rotation avoidance hole for the buckle structure to rotate is also provided on the back plate, and a guide plate that is engaged in the slot is provided between the spring hole and the rotation avoidance hole, the free end of the cantilever portion is opposite to the guide plate, and one side of the guide plate is inclined so that the first clamping portion is offset toward the protruding direction of the protruding portion.

[0014] Furthermore, the center plate includes an annular portion and a dovetail plate radially connected to the annular portion, and each dovetail plate is provided with at least one of the buckle structures.

[0015] Furthermore, a hanging hole is provided on the dovetail plate.

[0016] The present invention also provides a flying saucer lamp, comprising the above-mentioned back plate assembly.

[0017] The beneficial effects of the back panel assembly and the flying saucer light provided by the present invention are as follows: compared with the prior art, the back panel assembly of the present invention has a snap structure on its mounting plate including a first snap-in portion and a second snap-in portion, the first snap-in portion and the second snap-in portion are bent and connected to form a slot, so that the back panel is rotated and snapped into the slot, the mounting plate and the back panel are easy to install, and no installation gap is generated under the influence of gravity, thereby reducing the requirements for the dimensional accuracy of the mounting plate and the back panel, and the back panel assembly also has a spring sheet for preventing the mounting plate from falling off the back panel, thereby preventing the flying saucer light from falling off during vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1A three-dimensional structural diagram of a backplane assembly provided in an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0021] Figure 3 A three-dimensional structural diagram of a mounting plate provided in an embodiment of the present invention;

[0022] Figure 4 for Figure 3 A partial enlarged view of B in the middle;

[0023] Figure 5 A three-dimensional structural diagram of a spring provided in an embodiment of the present invention;

[0024] Figure 6 An exploded structural diagram of a flying saucer lamp provided by an embodiment of the present invention;

[0025] Figure 7 This is an assembly structure diagram of a drive assembly according to an embodiment of the present invention;

[0026] Figure 8 A cross-sectional view of a flying saucer lamp provided by an embodiment of the present invention;

[0027] Fig. 9 A three-dimensional structural diagram of a drive box provided in an embodiment of the present invention.

[0028] Among them, the reference numerals in the figure are:

[0029] 1-light-transmitting cover; 2-light source assembly; 3-face ring; 30-box hole; 4-driving assembly; 41-driving box; 411-box side wall; 412-communication avoidance hole; 413-second wire hole; 42-driving board; 421-board body; 422-communication part; 5-back plate assembly; 51-back plate; 511-spring hole; 512-rotation avoidance hole; 513-guide plate; 514-stop plate; 5140-first wire hole; 52-spring; 520-U-shaped groove; 521-fixing part; 522-cantilever part; 5221- Raised portion; 53-mounting plate; 531-center plate; 5311-annular portion; 5312-dovetail plate; 53120-hanging hole; 532-buckle structure; 5320-recessed portion; 53200-slot; 5321-first clamping portion; 53210-first slot wall; 53211-hook; 5322-second clamping portion; 53221-clamping body; 53222-bending portion; 53223-second slot wall; 53224-first straight wall; 53225-inclined wall; 53226-second straight wall. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or 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 indirectly connected to the other element.

[0032] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] Please also read Figures 1 to 5Now, the back plate assembly 5 provided by the present invention is described. In one embodiment, the back plate assembly 5 includes a back plate 51, a mounting plate 53 and a spring 52. The mounting plate 53 and the back plate 51 are rotatably clamped, and the spring 52 is used to prevent the mounting plate 53 from falling off the back plate 51. The mounting plate 53 includes a snap structure 532, and the snap structure 532 includes a first clamping portion 5321 and a second clamping portion 5322. The first clamping portion 5321 and the second clamping portion 5322 are bent and connected to form a clamping groove 53200. When the mounting plate 53 and the back plate 51 are assembled, the mounting plate 53 rotates relative to the back plate 51, so that the back plate 51 is clamped into the clamping groove 53200. In this way, the mounting plate 53 will not loosen in the axial direction of the back plate 51, and compared with the press-type mounting plate 53, this type of fixing structure has lower size requirements for the back plate 51 and the mounting plate 53. More specifically, the shape of the slot 53200 is U-shaped, and the bottom of the slot is the connection between the first clamping portion 5321 and the second clamping portion 5322. The opening direction of the slot 53200 is perpendicular to the axial direction of the mounting plate 53, so that when the mounting plate 53 rotates axially, the back plate 51 can enter the slot 53200 from the opening. The spring piece 52 is fixed on the back plate 51, and when the mounting plate 53 is clamped with the back plate 51, the spring piece 52 is also clamped into the slot 53200. Optionally, the spring piece 52 can be fixed to the back plate 51 by fasteners such as screws.

[0035] Compared with the prior art, the back panel assembly 5 provided by the present invention has a snap structure 532 on the mounting plate 53, which includes a first snap-in portion 5321 and a second snap-in portion 5322. The first snap-in portion 5321 and the second snap-in portion 5322 are bent and connected to form a slot 53200, so that the back panel 51 can be rotated and snapped into the slot 53200. The mounting plate 53 and the back panel 51 are easy to install, and no installation gap is generated under the influence of gravity, thereby reducing the dimensional accuracy requirements of the mounting plate 53 and the back panel 51. The back panel assembly 5 also has a spring piece 52 for preventing the mounting plate 53 from falling off the back panel 51, thereby preventing the flying saucer light from falling when vibrated.

[0036] See also Figures 3 to 5In one embodiment, the mounting plate 53 further comprises a center plate 531, the first clamping portion 5321 is bent and connected to the center plate 531, and the spring sheet 52 has a protrusion 5221 protruding toward the first clamping portion 5321, and the first clamping portion 5321 has a hook 53211 for preventing the protrusion 5221 from being separated from the slot 53200. The plane where the center plate 531 is located is parallel to the plane where the back plate 51 is located, and the first clamping portion 5321 is bent and connected to the center plate 531 so that the buckle structure 532 is protruded from the plane where the center plate 531 is located, so that the mounting plate 53 has a clamping space in the axial direction, and there is no need to additionally protrude on the back plate 51 to set a mounting structure that cooperates with the buckle structure 532. Optionally, the first clamping portion 5321 is in a sheet shape, and the first clamping portion 5321 is vertically connected to the center plate 531. The second clamping portion 5322 may also be in the form of a sheet and be on the same plane as the first clamping portion 5321, so that the second clamping portion 5322 is also arranged perpendicular to the center plate 531. The hook 53211 is arranged to protrude toward the inside of the slot 53200, which can reduce the width of the slot 53200 at the hook 53211. When the mounting plate 53 is inserted into the back plate 51, the protrusion 5221 is restricted in the slot 53200 by the hook 53211, preventing the mounting plate 53 from moving in the circumferential direction relative to the back plate 51. In this way, even when the UFO light vibrates, the back plate 51 will not fall off from the mounting plate 53.

[0037] In another embodiment, the protrusion 5221 on the spring sheet 52 is disposed toward the second clamping portion 5322 , and the second clamping portion 5322 is correspondingly provided with the above-mentioned clamping hook for preventing the protrusion 5221 from being separated from the clamping slot 53200 .

[0038] See also Figure 2 and Figure 5 In one embodiment, a U-shaped groove 520 is provided on the spring sheet 52, so that the spring sheet 52 is connected by a fixed portion 521 and a cantilever portion 522, the fixed portion 521 is fixed to the back plate 51, the cantilever portion 522 is clamped in the clamping groove 53200, the protrusion 5221 is provided on the cantilever portion 522, and the back plate 51 is provided with a spring sheet hole 511 for suspending the cantilever portion 522. Optionally, the plane where the spring sheet 52 is located is parallel to the plane where the back plate 51 is located. When the spring sheet 52 is clamped in the clamping groove 53200, the hook 53211 squeezes the protrusion 5221 on the cantilever portion 522, so that the cantilever portion 522 moves relative to the fixed portion 521 and enters the clamping groove 53200.

[0039] See also Figure 2In one embodiment, a rotation avoidance hole 512 for the buckle structure 532 to rotate is further provided on the back plate 51, and a guide plate 513 is provided between the spring hole 511 and the rotation avoidance hole 512, which is engaged in the card slot 53200. On the spring 52, the edge portion directly facing the free end of the cantilever portion 522 is in contact with the guide plate 513, and one side of the guide plate 513 is tilted to offset the first engaging portion 5321 toward the protruding direction of the protruding portion 5221. Optionally, the spring hole 511 and the rotation avoidance hole 512 are both arc-shaped. When preparing to assemble the lamp, fix the mounting plate 53 to the mounting surface, then rotate the rotation avoidance hole 512 of the back plate 51 relative to the buckle structure 532, and then extend the buckle structure 532 into the rotation avoidance hole 512, and make the slot 53200 face the guide plate 513, rotate the back plate 51 so that the guide plate 513 and the spring piece 52 enter the slot 53200 in sequence, when the guide plate 513 enters the slot 53200, since one of the side surfaces of the guide plate 513 is inclined, the guide plate 513 squeezes the first clamping portion 5321, so that the buckle structure 532 moves as a whole in the axial direction toward the protrusion 5221, thereby preventing the hook 53211 from hitting the protrusion 5221, and facilitating the protrusion 5221 to enter the slot 53200.

[0040] See also Figure 3 and Figure 4 In one embodiment, the side wall of the first clamping portion 5321 facing the clamping slot 53200 is the first clamping slot wall 53210, and the side wall of the second clamping portion 5322 facing the clamping slot 53200 is the second clamping slot wall 53223. The second clamping slot 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 slot wall 53210. The inclined wall 53225 and the first clamping slot wall 53210 are arranged at an angle so that the width of the clamping slot 53200 gradually increases from the first straight wall 53224 to the second straight wall 53226. The first straight wall 53224 is arranged near the connection between the first clamping portion 5321 and the second clamping portion 5322. The inclined wall 53225 gradually increases the width of the slot 53200 at the inclined wall 53225, preventing the spring sheet 52 from being unable to enter the slot 53200 under the restriction of the protrusion 5221, and providing a space for the protrusion 5221. The first slot wall 53210 and the second slot wall 53223 are connected in an arc shape at the connection between the first clamping portion 5321 and the second clamping portion 5322. The width of the slot 53200 at the connection between the first clamping portion 5321 and the second clamping portion 5322 can be greater than the distance between the first straight wall 53224 and the second slot wall 53223. In this way, the bottom of the slot 53200 is wider, preventing the mounting plate 53 from sliding backward in the circumferential direction.

[0041] In another embodiment, the second slot wall 53223 may also be formed by connecting only the first straight wall 53224 and the inclined wall 53225. In yet another embodiment, the second slot wall 53223 includes the first straight wall 53224, the inclined wall 53225 and the 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 arranged at an angle to the first slot wall 53210. That is, the inclined wall 53225 and the second straight wall are in a V-shaped structure, and the second straight wall is slightly inclined toward the first slot wall 53210, further strengthening the stable connection between the spring sheet 52 and the buckle structure 532.

[0042] See also Figure 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. The bending portion 53222 is bent toward the center plate 531, so that the second clamping portion 5322 is bent as a whole toward the center of the mounting plate 53 to prevent it from interfering with the root and surrounding area of ​​the cantilever portion 522 of the spring piece 52.

[0043] See also Figure 4 In one embodiment, the connection between the first clamping portion 5321 and the center plate 531 has a recessed portion 5320 for increasing the connection strength. The first clamping portion 5321 and the center plate 531 are bent and connected. In order to prevent the bending angle of the first clamping portion 5321 and the center plate 531 from changing when an external force is applied, the connection between the two has a recessed portion 5320. The recessed portion 5320 increases the rigidity of the connection and prevents the first clamping portion 5321 from bending and deforming in the opposite direction relative to the center plate 531.

[0044] See also Figure 3 In one embodiment, the center plate 531 includes an annular portion 5311 and a dovetail plate 5312 radially connected to the annular portion 5311, and each dovetail plate 5312 is provided with at least one buckle structure 532. The center of the annular portion 5311 has an opening, which can greatly save the material required for the mounting plate 53. Moreover, the buckle structure 532 is provided on the dovetail plate 5312, and the dovetail plate 5312 only needs to be provided at the place where the buckle structure 532 is provided. Compared with the disc-shaped mounting plate, this mounting plate 53 further saves materials, reduces the cost of raw materials and the weight of the flying saucer lamp. Optionally, two, three or four dovetail plates 5312 of equal number are connected to the annular portion 5311, and each dovetail plate 5312 is evenly arranged in the circumferential direction, and each dovetail plate 5312 is provided with one, two or more buckle structures 532.

[0045] See also Figure 3In one embodiment, the dovetail plate 5312 is provided with hanging holes 53120, and the number, structure and distribution position of the hanging holes 53120 are not limited here. A hanging piece corresponding to the hanging hole 53120 is fixed on the ceiling or wall, and the mounting plate 53 is installed on the hanging piece through the hanging hole 53120, so that the UFO light is fixed on the ceiling or wall.

[0046] See also Figures 6 to 9 The present invention also provides a flying saucer lamp, which includes the back panel assembly 5 in any of the above embodiments.

[0047] In one embodiment, the UFO lamp further includes a light source assembly 2, a face ring 3, a driving assembly 4, etc. The light source assembly 2 is fixed on the face ring 3, the back plate 51 is fixedly connected to the face ring 3, and the driving assembly 4 is sandwiched between the face ring 3 and the back plate 51. Optionally, the light source assembly 2 and the driving assembly 4 are arranged on opposite sides of the face ring 3. The driving assembly 4 is electrically connected to the light source assembly 2 to enable the driving assembly 4 to control the parameters of the light source assembly 2 such as color temperature and power.

[0048] Optionally, the flying saucer lamp further comprises a light-transmitting cover 1 which is arranged on the light source assembly 2, and the light-transmitting cover 1 can protect the light source assembly 2 and can also make the light emitted by the light source assembly 2 uniform. The light-transmitting cover 1 is fixedly connected to the face ring 3.

[0049] See also Figure 7 and Figure 8 In one embodiment, the back plate 51 is annular, and the driving assembly 4 is fixed to the side of the back plate 51 facing the face ring 3, so that the driving assembly 4 is set away from the center of the back plate 51, freeing up the space in the center area of ​​the flying saucer light, preventing the driving assembly 4 from interfering with the mounting plate 53, and making the design of the mounting plate 53 more unrestricted. More specifically, the driving assembly 4 includes a driving box 41 and a driving plate 42, the driving plate 42 is arranged in the driving box 41, and the driving box 41 and the back plate 51 are fixedly connected. Optionally, the driving box 41 and the back plate 51 are connected by a buckle.

[0050] See also Fig. 9In one embodiment, the driving box 41 is provided with a communication avoidance hole 412, and the driving board 42 includes a board body 421 provided on the back plate 51 and a communication part 422 provided through the communication avoidance hole 412. The board body 421 and the communication part 422 are fixedly connected, and the board body 421 abuts against the side of the back plate 51 facing the face ring 3. Optionally, the board body 421 and the communication part 422 are vertically connected, and the plane where the communication part 422 is located is arranged parallel to the central axis of the back plate 51. The communication part 422 passes through the driving box 41 through the communication avoidance hole 412, so that the communication part 422 is not covered by the driving box 41, which can reduce signal attenuation, improve communication efficiency, and avoid the driving box 41 being too large to interfere with the light-transmitting cover 1 of the flying saucer lamp. The light source assembly 2 includes at least two light sources of color temperature, and the communication part 422 can be selected as a Bluetooth or wifi control module. The communication part 422 is controlled by an external controller to realize the control of the color temperature of the light source, the adjustment of the power and the control of the light intensity, thereby enriching the functions of the flying saucer lamp.

[0051] See also Fig. 9 In one embodiment, the driving box 41 has a box side wall 411 arranged parallel to the board body 421, a communication avoidance hole 412 is opened on the box side wall 411, and a box hole 30 for the box side wall 411 to pass through is opened on the face ring 3. The board body 421 vertically passes through the communication avoidance hole 412 on the box side wall 411, and the box side wall 411 is arranged to pass through the box hole 30 as a whole, so that the board body 421 passes through the box side wall 411 and the face ring 3 to the side of the light source assembly 2, so that the light source assembly 2 can be directly electrically connected to the board body 421 through cables, connectors, etc.

[0052] See also Figure 7 In one embodiment, the back plate 51 has at least two stopper plates 514 for positioning the driving plate 42. The stopper plates 514 are arranged perpendicular to the plate body 421, so that the driving plate 42 is restricted in the space surrounded by each stopper plate 514. Optionally, the bottom surface of the plate body 421 is arranged against the back plate 51, and the plate body 421 has four side surfaces. Accordingly, the number of the stopper plates 514 is four, two of which are arranged close to the edge of the back plate 51 and facing the light source assembly 2, and the other two are arranged against the remaining two side surfaces of the plate body 421. The stopper plate 514 facing the light source assembly 2 is a plane plate, and accordingly, one side surface of the plate body 421 facing the light source assembly 2 is a plane, and the side surface of the plate body 421 near the outer edge of the back plate 51 can be an arc surface, so that the plate body 421 is fan-shaped, so that the space of the back plate 51 can be fully utilized and the installation area of ​​the plate body 421 can be increased.

[0053] See also Figure 7 and Fig. 9In one embodiment, a first wire hole 5140 for the cable to pass through is provided on the stop plate 514 facing the light source assembly 2, and a second wire hole 413 is provided on the driver box 41 to face the first wire hole 5140. The provision of the first wire hole 5140 and the second wire hole 413 enables the cable on the driver board 42 to pass through the stop plate 514 and the driver box 41 in sequence to be connected to the light source assembly 2, making the connection between the driver assembly 4 and the light source assembly 2 more convenient.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Backplane assembly, It is characterized in that include: Back panel; The mounting plate includes a buckle structure, the buckle structure includes a first buckle portion and a second buckle portion bent and connected to the first buckle portion, a buckle groove for rotatably engaging with the back plate is formed between the first buckle portion and the second buckle portion, the first buckle portion and the second buckle portion are both sheet-shaped, the mounting plate also includes a center plate, the first buckle portion is bent and connected to the center plate; A spring sheet is fixedly connected to the back plate, and the spring sheet is clamped in the clamping slot to prevent the mounting plate from being separated from the back plate. The spring sheet has a protrusion protruding toward the first clamping portion, and the first clamping portion has a hook for preventing the protrusion from being separated from the clamping slot.

2. The back plate assembly according to claim 1, Features: The side wall of the first clamping portion facing the clamping slot is the first clamping slot wall, the side wall of the second clamping portion facing the clamping slot is the second clamping slot wall, the second clamping slot wall includes a first straight wall, an inclined wall and a second straight wall connected in sequence, the first straight wall is arranged near the connection between the first clamping portion and the second clamping portion, the first straight wall and the second straight wall are both parallel to the first clamping slot wall, and the inclined wall is arranged at an angle to the first clamping slot wall so that the width of the clamping slot gradually increases from the first straight wall to the second straight wall.

3. The back plate assembly according to claim 1, Features: The second clamping portion includes a clamping body portion and a bending portion connected to the clamping body portion, the clamping body portion is bent and connected to the first clamping portion, and the bending portion is bent toward the center plate.

4. The back plate assembly according to claim 1, Features: A recessed portion for increasing connection strength is provided at a connection point between the first clamping portion and the center plate.

5. The back plate assembly according to claim 1, Features: A U-shaped groove is provided on the spring sheet, so that the spring sheet consists of a fixed part and a cantilever part, the fixed part is fixed to the back plate, the cantilever part is clamped in the clamping groove, the protrusion is arranged on the cantilever part, and the back plate is provided with a spring sheet hole that allows the cantilever part to be suspended in the air.

6. The back plate assembly according to claim 5, Features: The back plate is also provided with a rotation avoidance hole for the buckle structure to rotate, and a guide plate is provided between the spring hole and the rotation avoidance hole to be clamped in the clamping slot, the free end of the cantilever portion is facing the guide plate, and one side of the guide plate is tilted to offset the first clamping portion toward the protruding direction of the protruding portion.

7. The back plate assembly according to claim 1, Features: The center plate includes an annular portion and a dovetail plate radially connected to the annular portion, and each dovetail plate is provided with at least one buckle structure.

8. The back plate assembly according to claim 7, Features: A hanging hole is provided on the dovetail plate.

9. UFO lights, Features: The backplane assembly comprises the backplane assembly described in any one of claims 1 to 8.

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