CN215417372U - Backlight device - Google Patents

Abstract

The embodiment of the application discloses backlight device, including backplate and buckle spare, be equipped with the first cassette and the second cassette that are located relative position on the backplate, buckle spare includes bottom plate, curb plate, V type structure and grafting portion, the bottom plate with the curb plate sets up perpendicularly, V type structure has elasticity, but atress is out of shape when being extruded, with the curb plate is located respectively the both sides of bottom plate, the quantity of grafting portion is two, one grafting portion certainly the structural orientation of V type is kept away from the direction of bottom plate extends, with first cassette assembly, another grafting portion certainly keep away from on the curb plate the orientation of bottom plate extends, with second cassette assembly. In this way, the backboard and the buckle piece are fixedly installed in a buckling mode, and the buckle piece is used for installing a circuit board, so that the punching assembly is not needed, the structure is simple, and the disassembly and the assembly are convenient.

Description

Backlight device

Technical Field

The application relates to the technical field of liquid crystal display equipment, in particular to a backlight device.

Background

The display device is widely applied to electronic products for implementing a display function of the electronic products, and generally includes a back plate and a circuit board, where the back plate is used to mount a carrier circuit board, and a corresponding display function is implemented through a functional module of the circuit board.

In prior art, set up backplate and buckle complex mode commonly and install carrier circuit board jointly, and buckle and backplate generally adopt screwed connection's mode assembly, perhaps, set up the mode realization assembly of brokenly the hole at the backplate for, when the assembly, need corresponding instrument just can realize the installation of buckle and backplate, it is inconvenient to install.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a need not to punch, simple to operate's backlight unit.

An embodiment of the present application provides a backlight device, including:

the back plate is provided with a first clamping seat and a second clamping seat which are positioned at opposite positions;

the clamping piece comprises a bottom plate, a side plate, a V-shaped structure and an inserting part;

the bottom plate and the side plate are vertically arranged, the V-shaped structure is elastic, the side plate is respectively positioned on two sides of the bottom plate, the number of the inserting parts is two, one inserting part extends from the V-shaped structure in the direction of keeping away from the bottom plate and is assembled with the first clamping seat, and the other inserting part extends from the side plate in the direction of keeping away from the bottom plate and is assembled with the second clamping seat.

Optionally, the back plate includes a plurality of metal sheets, and the first clamping seat and the second clamping seat are located on the same metal sheet;

the first clamping seat comprises a blocking part, a clamping groove is formed between the blocking part and the metal sheet, and the inserting part and the first clamping seat are assembled and positioned in the clamping groove.

Optionally, the fastener further comprises a latch;

a limiting hole is formed in the bottom plate and penetrates through the bottom plate;

a blind hole is formed in the position, opposite to the limiting hole, of the back plate;

one end of the bolt penetrates through the limiting hole and is located in the blind hole, the bolt is partially located in the blind hole, and the bolt is partially located in the limiting hole.

Optionally, the fastening member further includes a limiting structure, and the insertion portion connected to the side plate and a part of the limiting structure are respectively located on two back surfaces of the side plate;

the backlight device also comprises a circuit board, the circuit board is arranged in an accommodating space defined by the bottom plate, the side plates and the V-shaped structure, and the circuit board is limited by the limiting structure.

Optionally, the limiting structure includes a limiting portion, the cross section of the limiting portion is triangular, and the insertion portion and the limiting portion connected to the side plate are respectively located on two opposite sides of the side plate;

the circuit board is arranged in the accommodating space enclosed by the bottom plate, the side plates and the V-shaped structure, and the circuit board is limited by the limiting part.

Optionally, a plurality of adjusting holes are formed in the side plate, and a midpoint connecting line of the plurality of adjusting holes is perpendicular to the bottom plate;

the limiting structure further comprises an adjusting part, the adjusting part is connected with the limiting part, and the adjusting part is assembled with one of the adjusting holes.

Optionally, the fastener further includes a bird's beak structure, and the bird's beak structure includes a positioning portion;

the bottom plate is provided with a plurality of positioning holes which are mutually connected, and the section of each positioning hole is in an incomplete polygon shape;

the positioning part is assembled with one of the positioning holes.

Optionally, the beak structure further includes a first body, a second body and a third body;

the second main body, the third main body and the positioning part are all connected with the first main body, the first main body is inclined relative to the bottom plate, the second main body and the positioning part are respectively connected to two ends of the first main body, the third main body is connected to the middle position of the first main body, and the section of the third main body is a curved surface;

a portion of the circuit board is located between the second body and the third body.

Optionally, the second main body is provided with a plurality of steps, and the second main body is in a step shape with gradually increasing height relative to the bottom plate.

Optionally, the fastening member further includes a bearing portion, the bearing portion extends from the inner wall of the side plate, and is located on the same side of the back plate as the limiting portion;

the circuit board is mounted between the second body, the third body, the limiting portion and the bearing portion.

The backlight device provided by the embodiment of the application comprises a back plate and a clamping piece, wherein a first clamping seat and a second clamping seat which are positioned at opposite positions are arranged on the back plate, the clamping piece comprises a bottom plate, side plates, a V-shaped structure and an inserting part, the bottom plate and the side plates are vertically arranged, the V-shaped structure is elastic, the side plates are respectively positioned at two sides of the bottom plate, the inserting part is two, one inserting part is connected with the V-shaped structure, the other inserting part is connected with the side plates, the two inserting parts are equivalently positioned at two sides of the bottom plate, when the backlight device is installed, one inserting part is assembled with the second clamping seat to extrude the V-shaped structure, the other inserting part is assembled with the first clamping seat to realize the assembly of the back plate and the clamping piece, and a circuit board is installed in the clamping piece, the scheme is free from punching assembly, simple in structure and convenient to disassemble and assemble.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a backlight device according to an embodiment of the present disclosure;

FIG. 2 is an exploded view of the backlight assembly shown in FIG. 1;

FIG. 3 is an enlarged view of a portion of the backlight assembly shown in FIG. 2;

FIG. 4 is a schematic structural diagram of a card socket of the backlight device shown in FIG. 2;

FIG. 5 is another structural diagram of the card socket of the backlight device shown in FIG. 2;

FIG. 6 is a schematic structural view of the bird's beak configuration of the cartridge of FIG. 4;

FIG. 7 is a cross-sectional view of the backlight assembly shown in FIG. 1;

referring to fig. 1 to 7, 100 is a backlight device, 1 is a back plate, 11 is a first card holder, 12 is a second card holder, 111 is a blocking portion, 112 is a card slot, 2 is a fastener, 21 is a bottom plate, 22 is a side plate, 23 is a V-shaped structure, 24 is a plug portion, 25 is a bird's beak structure, 26 is a limiting structure, 27 is a bearing portion, 211 is a limiting hole, 212 is a positioning hole, 251 is a first body, 252 is a second body, 253 is a third body, and 254 is a positioning portion.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The embodiment of the application provides a backlight device, including backplate structure and buckle structure, set up the cassette in backplate structure, the card portion of setting and cassette assembly in buckle structure, realize assembly connection through the lock between card portion and the cassette between backplate structure and the buckle structure to the realization need not to punch just can connect assembly buckle structure and backplate structure, simple structure, easy dismounting, display device's PCB circuit board is installed on buckle structure, indirectly connects PCB circuit board and backplate structure.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a backlight device provided in an embodiment of the present application, fig. 2 is an exploded view of the backlight device provided in the embodiment of the present application, and further, the backlight device 100 includes a back plate 1, a plurality of fastening members 2 and a plurality of circuit boards (not shown), the plurality of fastening members 2 are all assembled and connected to the back plate 1, the plurality of circuit boards are assembled to the fastening members 2, and are mounted and supported by the fastening members 2, and are indirectly connected to the back plate 1.

Referring to fig. 3, fig. 3 is a partial enlarged view of a backlight device according to an embodiment of the present disclosure, the back plate 1 includes a plurality of metal sheets, and a plurality of first card holders 11 and a plurality of second card holders 12 are disposed on the back plate, the first card holders 11 and the second card holders 12 are disposed on two sides of the same sheet and are disposed oppositely, and one first card holder 11 and one second card holder 12 in an opposite position are assembled with one locking member 2.

Further, the first card holder 11 includes a blocking portion 111 and a card slot 112, wherein the card slot 112 may be regarded as being formed by the blocking portion 111 and the thin metal plate in an enclosing manner, when assembling, the part of the fastening member 2 is accommodated in the card slot 112, and the position of the fastening member 2 is limited by the blocking portion 111, so as to implement the assembling connection between the fastening member 2 and the back plate 1.

Optionally, in an embodiment of the present application, the first cartridge 11 and the second cartridge 12 have the same shape and size, and the notches face in opposite directions, that is, the notch of the first cartridge 11 faces the second cartridge 12, and the notch of the second cartridge 12 faces the first cartridge 11.

In other embodiments, the structures of the first clamping seat 11 and the second clamping seat 12 may be different, as long as the assembly with the fastener 2 can be achieved, and the structure is not limited herein.

Referring to fig. 4 and 5 together, fig. 4 is a schematic structural diagram of a locking element of a backlight device according to an embodiment of the present disclosure, fig. 5 is another schematic structural diagram of a locking element of a backlight device according to an embodiment of the present disclosure, and further, the locking element 2 is made of plastic, and includes a bottom plate 21, a side plate 22, a V-shaped structure 23, an insertion portion 24, a beak structure 25, a limiting structure 26, and a bearing portion 27.

The bottom plate 21 with the curb plate 22 all is rectangle platelike structure, curb plate 22 is located one side of bottom plate 21, with bottom plate 21 is perpendicular, be equipped with a spacing hole 211 and a plurality of locating hole 212 of interconnect on the bottom plate 21, spacing hole 211 with the locating hole 212 all runs through bottom plate 21 is the through-hole, wherein, the cross-section of spacing hole 211 is oval.

Furthermore, the limiting hole 211 is used for limiting the relative position between the fastening piece 2 and the back plate 1, in the embodiment of the application, the fastening piece 2 is further provided with a bolt (not shown), a blind hole (not shown) is arranged at a position on the back plate 1 corresponding to the limiting hole 211, when the fastening piece is installed, the bolt is installed in the limiting hole 211 and the blind hole, the bolt is partially located in the blind hole, and partially located in the limiting hole 211, so that the relative position between the fastening piece 2 and the back plate 1 is limited, and the stability of the assembly between the fastening piece 2 and the back plate 1 is improved.

The positioning holes 212 are incomplete in cross section and connected with each other, and the positioning holes 212 are used for being assembled and connected with the beak structure 25, so that on one hand, the beak structure 25 and the bottom plate 21 are fixed, and on the other hand, the beak structure 25 can be assembled and connected with one positioning hole 212 according to actual needs, so that the position of the beak structure 25 relative to the bottom plate 21 can be adjusted, the space size can be adjusted, and the purpose of mounting circuit boards of various specifications can be achieved.

In the embodiment of the present application, each positioning hole 212 has a cross section in the shape of an incomplete polygon, and the bird's beak structure 25 and the positioning hole 212 are tightly fitted, so that the bird's beak structure 25 cannot rotate relative to the bottom plate 21, and the stability of the assembly structure is improved.

V type structure 23 has elasticity, locates the opposite side of bottom plate 21, with curb plate 22 is located respectively the both ends of bottom plate 21, and the elasticity characteristics make V type structure 23's V type open-ended size can be adjusted, extrudees V type structure 23, its V type opening diminishes, and the purpose that elasticity set up is in order to make V type structure 23 and other structures of being connected with this structure position can change under the atress effect, simultaneously, can the reconversion under the circumstances of not atress, in order to realize buckle spare 2 with dismouting between the backplate 1.

In the embodiment of the present application, the V-shaped structure 23 is an inverted V shape, and is respectively connected to the bottom plate 21 and the insertion portion 24.

The plug-in portions 24 are used for being assembled with the first card holder 11 and the second card holder 12, in an embodiment of the present application, one of the fastening members 2 includes two plug-in portions 24, the two plug-in portions 24 are respectively located at two ends of the fastening member 2, one plug-in portion 24 is connected with the V-shaped structure 23, and the other plug-in portion 24 is connected with the side plate 22.

During assembly, the two inserting parts 24 are respectively limited in the clamping groove 112 by the blocking parts 111 of the first clamping seat 11 and the second clamping seat 12, so that the fastening part 2 and the back plate 1 are assembled and connected.

Referring to fig. 6, fig. 6 is a schematic structural diagram of a beak structure of a backlight device according to an embodiment of the present disclosure, the beak structure 25 has elasticity, and includes a first main body 251, a second main body 252, a third main body 253, and a positioning portion 254, the second main body 252, the third main body 253, and the positioning portion 254 are all extended from the first main body 251, wherein an included angle between the second main body 252 connected to one end of the first main body 251 and the first main body 251 is an obtuse angle, the positioning portion 254 connected to the other end of the first main body 251 is cylindrical, and the third main body 253 is connected to a middle position of the first main body 251, and has a curved cross section.

In the embodiment of the present application, the space between the second body 252 and the third body 253 is used for mounting the circuit board of the receiving portion, the second body 252 is used for carrying the circuit board, and the positioning portion 254 is used for assembling with the positioning hole 212 to adjust the position of the beak structure 25 relative to the bottom plate 21, i.e. adjust the size of the space.

The bird's beak structure 25 can adjust the space for accommodating the circuit board, and can mount and bear the circuit board, and the bird's beak structure has good elasticity and is not easy to break under the action of external force.

Alternatively, in other embodiments, the second body 252 may be provided in a step shape with a gradually increased height relative to the bottom plate 21, so as to achieve the purpose of accommodating the circuit boards of various specifications.

Alternatively, in other embodiments, the positioning portion 254 may be provided in other shapes, and correspondingly, the positioning hole 212 may also be provided in other shapes, as long as the beak structure 25 cannot rotate relative to the base plate 21 after the positioning portion 254 and the positioning hole 212 are matched.

The restriction structure 26 includes a restriction portion (not shown) having a triangular cross-section and an adjustment portion (not shown) connected to the restriction portion.

In the embodiment of the present application, the limiting portion and the bearing portion 27 are located on the same side of the side plate 22, and are used for limiting the circuit board, the adjusting portion is used for adjusting the position of the limiting portion, optionally, a plurality of adjusting holes (not shown) are provided on the side plate 22, and a central connecting line of the plurality of adjusting holes is perpendicular to the bottom plate 21.

In the assembling process, a certain adjusting hole is selected according to the requirement, and the adjusting part and the adjusting hole are assembled.

The bearing portion 27 extends from the side plate 22, and the limiting portion and the bearing portion 27 are located in a receiving space surrounded by the V-shaped structure 23, the bottom plate 21 and the side plate 22.

In the embodiment of the present application, the circuit board is mounted between the second body 252, the third body 253, the limiting portion and the bearing portion 27, and this mounting structure arrangement has the advantages of stably limiting the position of the circuit board, preventing the circuit board from being separated from the latch 2, avoiding or reducing friction generated by contact between the circuit board and the bottom plate 21, and ensuring the performance and the service life of the circuit board.

The carrier part 27 serves, on the one hand, to carry the circuit board together with the second body 252 and, on the other hand, to avoid or reduce contact between the circuit board and the base plate 21.

Referring to fig. 7, fig. 7 is a cross-sectional view of a backlight device according to an embodiment of the present disclosure, in assembly, the fastening element 2 and the back plate 1 are first assembled and fixed, and then the circuit board and the fastening element 2 are assembled and fixed.

Specifically, one of the plug-in parts 24 is assembled with the second card holder 12, the V-shaped structure 23 is extruded, so that the other plug-in part 24 is assembled with the first card holder 11, and then the plug pin is installed in the blind holes of the limiting hole 211 and the back plate 1, which are located at opposite positions to the limiting hole 211.

According to the specification of the circuit board, the position of the bird's beak structure 25 with respect to the base plate 21 is adjusted, the bird's beak structure 25 is fitted into a certain one of the positioning holes 212, the positioning portion 254 is inserted into the positioning hole 212, and the bird's beak structure 25 is not rotatable with respect to the base plate 21.

According to the specification of the circuit board, the positions of the adjusting part and the adjusting hole relative to the bottom plate 21 are adjusted, a certain adjusting hole is selected, and the adjusting part and the adjusting hole are assembled.

The circuit board is mounted between the second body 252, the third body 253, the limiting structure 26 and the bearing part 27.

The embodiment of the application provides a backlight device 100, which comprises a back plate 1, a fastener 2 and a circuit board, wherein the back plate 1 is provided with a first clamping seat 11 and a second clamping seat 12 which are arranged at opposite positions, the fastener 2 is used for installing the circuit board and comprises a bottom plate 21, side plates 22, a V-shaped structure 23 and a plugging part 24, the bottom plate 21 and the side plates 22 are vertically arranged, the V-shaped structure 23 has elasticity, the side plates 22 are respectively connected with two sides of the bottom plate 21, one of the plugging parts 24 is connected with the V-shaped structure 23, the other is connected with the side plates 22 and is equivalently arranged at two sides of the bottom plate 21, when in assembly, one of the plugging parts 24 and the second clamping seat 12 is assembled to press the V-shaped structure 23, the other of the plugging parts 24 is assembled with the first clamping seat 11, and the assembly of the back plate 1 and the fastener 2 can be completed, the circuit board is mounted and borne by the fastener 2, and the purposes of no need of punching assembly, simple structure and convenient assembly and disassembly are achieved by the mode.

Furthermore, a limiting hole 211 which is a through hole is formed in the bottom plate 21, a blind hole is formed in the opposite position of the back plate 1, and a plug pin is installed in the blind hole and the limiting hole 211, so that the position of the fastening member 2 can be kept stable under the condition of external force after the two inserting parts 24 are respectively assembled with the first clamping seat 11 and the second clamping seat 12.

Furthermore, the fastener 2 includes a beak structure 25, a positioning portion 254 is disposed on the beak structure 25, and a plurality of positioning holes 212 for assembling with the positioning portion 254 are disposed on the bottom plate 21, so that during actual assembly, the positioning portion 254 and one of the positioning holes 212 can be selectively assembled according to the specification of the circuit board, thereby achieving the purposes of adjusting the installation space and accommodating and installing the circuit boards of various specifications, and simultaneously achieving the purposes of avoiding or reducing friction generated by contact between the circuit board and the bottom plate 21 and ensuring the performance and service life of the circuit board.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims (10)

1. A backlight apparatus, comprising:

the back plate is provided with a first clamping seat and a second clamping seat which are positioned at opposite positions;

the clamping piece comprises a bottom plate, a side plate, a V-shaped structure and an inserting part;

the bottom plate and the side plate are vertically arranged, the V-shaped structure is elastic, the side plate is respectively positioned on two sides of the bottom plate, the number of the inserting parts is two, one inserting part extends from the V-shaped structure in the direction of keeping away from the bottom plate and is assembled with the first clamping seat, and the other inserting part extends from the side plate in the direction of keeping away from the bottom plate and is assembled with the second clamping seat.

2. The backlight device according to claim 1,

the back plate comprises a plurality of metal thin plates, and the first clamping seat and the second clamping seat are positioned on the same metal thin plate;

the first clamping seat comprises a blocking part, a clamping groove is formed between the blocking part and the metal sheet, and the inserting part and the first clamping seat are assembled and positioned in the clamping groove.

3. The backlight device according to claim 1,

the buckle piece also comprises a bolt;

a limiting hole is formed in the bottom plate and penetrates through the bottom plate;

a blind hole is formed in the position, opposite to the limiting hole, of the back plate;

one end of the bolt penetrates through the limiting hole and is located in the blind hole, the bolt is partially located in the blind hole, and the bolt is partially located in the limiting hole.

4. The backlight device according to claim 1,

the buckling piece further comprises a limiting structure, and the inserting part connected to the side plate and part of the limiting structure are respectively positioned on the two back surfaces of the side plate;

the backlight device also comprises a circuit board, the circuit board is arranged in an accommodating space defined by the bottom plate, the side plates and the V-shaped structure, and the circuit board is limited by the limiting structure.

5. The backlight device according to claim 4,

the limiting structure comprises a limiting part, the cross section of the limiting part is triangular, and the inserting part and the limiting part which are connected to the side plate are respectively positioned on the two back surfaces of the side plate;

the circuit board is arranged in the accommodating space enclosed by the bottom plate, the side plates and the V-shaped structure, and the circuit board is limited by the limiting part.

6. The backlight device according to claim 5,

a plurality of adjusting holes are formed in the side plate, and midpoint connecting lines of the adjusting holes are perpendicular to the bottom plate;

the limiting structure further comprises an adjusting part, the adjusting part is connected with the limiting part, and the adjusting part is assembled with one of the adjusting holes.

7. The backlight device according to claim 5,

the buckle piece further comprises a bird beak structure, and the bird beak structure comprises a positioning part;

the bottom plate is provided with a plurality of positioning holes which are mutually connected, and the section of each positioning hole is in an incomplete polygon shape;

the positioning part is assembled with one of the positioning holes.

8. The backlight device according to claim 7,

the beak structure further comprises a first body, a second body and a third body;

the second main body, the third main body and the positioning part are all connected with the first main body, the first main body is inclined relative to the bottom plate, the second main body and the positioning part are respectively connected to two ends of the first main body, the third main body is connected to the middle position of the first main body, and the section of the third main body is a curved surface;

a portion of the circuit board is located between the second body and the third body.

9. The backlight device according to claim 8,

the second main body is provided with a plurality of steps, and the second main body is in a step shape with gradually increased height relative to the bottom plate.

10. The backlight device according to claim 8,

the buckle piece further comprises a bearing part, the bearing part extends from the inner wall of the side plate and is positioned on the same side of the back plate as the limiting part;

the circuit board is mounted between the second body, the third body, the limiting portion and the bearing portion.

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