CN207230470U

CN207230470U - PCB fixed structures and backlight module

Info

Publication number: CN207230470U
Application number: CN201721027635.6U
Authority: CN
Inventors: 王智勇; 赖正灵
Original assignee: Hefei Huike Jinyang Technology Co Ltd
Current assignee: Hefei Huike Jinyang Technology Co Ltd
Priority date: 2017-08-16
Filing date: 2017-08-16
Publication date: 2018-04-13
Anticipated expiration: 2027-08-16

Abstract

It the utility model is related to display device technical field, disclose a kind of PCB fixed structures, for the PCB bodies with mounting hole to be removably fixed in backboard, the PCB fixed structures include positive stop spring plate, positive stop spring plate includes being used for the connecting portion for connecting backboard, the supporting part being fixedly arranged on connecting portion, and may pass through mounting hole and pushing against the limiting section that PCB bodies form spacing fixation for supporting part tip edge is convexly equipped in, it is at least two-part gap to be offered limit part on limiting section.A kind of backlight module including backboard and PCB bodies is also disclosed, which further includes above-mentioned PCB fixed structures, and PCB fixed structures are detachably connected PCB bodies and backboard.In this way, easily can pull down PCB bodies on the premise of PCB bodies are not damaged, simplify the installation of backlight module, disassemble or maintenance process, reduce cost, improve production efficiency.

Description

PCB fixed structures and backlight module

Technical field

The technical field of display device is the utility model is related to, is to be related to a kind of PCB fixed structures and the back of the body more specifically Optical mode group.

Background technology

Printed circuit board (Printed Circuit Board) abbreviation PCB, the work of electrical connection is provided for electronic component With being known as " mother of electronic product ".At present, PCB is commonplace applied to display device, and in PCB fixed work orders, one As use screw fixation method, or PCB is adhesively fixed by EVA (Ethylene Vinyl Acetate) double faced adhesive tape, But screw fixation method is relative complex and technique is cumbersome, and the two-sided adhesive tensions of EVA are stronger, causes dismounting difficult, repairing or returning Man-hour easily causes PCB damaged, or even scraps whole PCB, in the human cost and goods and materials cost for making PCB installation fixed work orders It is floating.

Utility model content

It is existing to solve in the prior art the purpose of this utility model is to provide a kind of PCB fixed structures and backlight module It is cumbersome using screw fixation method technique when being fixed on back light module backboard with the presence of PCB, deposited using EVA double faced adhesive tape fixed forms Damaged technical problem is easily caused when dismounting difficulty causes PCB to repair or do over again.

To achieve the above object, the technical solution adopted in the utility model is：PCB fixed structures, for that will have installation The PCB bodies in hole are removably fixed on backboard, and the PCB fixed structures include positive stop spring plate, and the positive stop spring plate includes using In the connecting portion for connecting the backboard, the supporting part being fixedly arranged on the connecting portion, and it is convexly equipped in supporting part top side May pass through the mounting hole and pushing against the limiting section that the PCB bodies form spacing fixation for edge, offers on the limiting section It is at least two-part gap by the limit part.

Further, the bottom surface of the connecting portion is provided with the gum for being fixedly connected on the backboard.

Further, the supporting part includes the first support branch and that relative tilt is fixedly arranged on the connecting portion both ends Two support branches.

Further, the limiting section includes the overarm body for being convexly equipped in the supporting part tip edge, and is convexly equipped in The limit fastener of the overarm body tip edge, the supporting part top and the limit fastener can support the PCB respectively The opposing sides of body forms spacing.

Further, the overarm body is hollow columnar part, and the overarm body and the limit fastener are by institute State gap and be half-and-half divided into two parts, the two-part bottom of the overarm body is fixedly arranged on the top of the first support branch respectively End margin and the tip edge of the second support branch.

Preferably, the limiting section, the supporting part and the connecting portion are conduct piece.

Preferably, the connecting portion, the supporting part, the overarm body and the limit fastener integrated molding.

The utility model additionally provides a kind of backlight module, including backboard and PCB bodies, the backlight module further include as The upper PCB fixed structures, the PCB fixed structures are detachably connected the PCB bodies and the backboard.

The beneficial effect of PCB fixed structures and backlight module provided by the utility model is：Compared with prior art, originally The PCB fixed structures and backlight module that utility model proposes, by setting positive stop spring plate on the backboard of backlight module, this is spacing Shrapnel includes the connecting portion being fixedly arranged on backboard, the supporting part being fixedly arranged on connecting portion, and is convexly equipped in the supporting part top May pass through the mounting hole and pushing against the limiting section that the PCB bodies form spacing fixation for edge, opens up on the limiting section It is at least two-part gap to have the limit part.In this way, can opposite compressing limiting section gap both sides two parts with It is set to draw close the abutting state of releasing and inner wall of the hole installing, in this way, can easily will on the premise of PCB bodies are not damaged PCB bodies are pulled down, so that inconvenience when fixing pcb board using EVA double faced adhesive tapes in maintenance or process of rework, and may be right Infringement caused by PCB, it also avoid using screw fixation method there are technique it is cumbersome the problem of, simplify the peace of backlight module Fill, disassemble or maintenance process, reduce human cost and goods and materials cost, improve production efficiency.

Brief description of the drawings

, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing is briefly described needed in description, it should be apparent that, drawings in the following description are only that this practicality is new Some embodiments of type, for those of ordinary skill in the art, without having to pay creative labor, can be with Other attached drawings are obtained according to these attached drawings.

Fig. 1 is the schematic elevation view for the backlight module that the utility model embodiment provides；

Fig. 2 is the schematic cross-sectional view that A-A is tangential in Fig. 1；

Fig. 3 is the enlarged diagram of part B in Fig. 2；

Fig. 4 is the structure diagram of the positive stop spring plate for the PCB fixed structures that the utility model embodiment provides；

Fig. 5 is the assembling schematic diagram for the backlight module that the utility model embodiment provides.

Wherein, each reference numeral in figure：

10- backboards；20-PCB bodies；21- mounting holes；211- mounting holes；30-PCB fixed structures；31- positive stop spring plates 311- connecting portions；312- supporting parts；3121- first supports branch；3122- second supports branch；313- limiting sections；Between 3131- Gap；3132- overarm bodies；3133- limit fasteners.

Embodiment

In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with Lower combination accompanying drawings and embodiments, are further elaborated the utility model.It is it should be appreciated that described herein specific real Example is applied only to explain the utility model, is not used to limit the utility model.

It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another On one element or it is connected on another element.When an element is known as " being connected to " another element, it can To be directly to another element or be indirectly connected on another element.

It is to be appreciated that term " length ", " width ", " on ", " under ", "front", "rear", "left", "right", " vertical ", The orientation or position relationship of the instruction such as " level ", " top ", " bottom " " interior ", " outer " are to be closed based on orientation shown in the drawings or position System, is for only for ease of and describes the utility model and simplified description, rather than the device or element of instruction or hint meaning are necessary With specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.

In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include one or more this feature.In the description of the utility model, " multiple " are meant that two or two More than, unless otherwise specifically defined.

As shown in Figures 1 to 5, the utility model embodiment proposes a kind of PCB fixed structures 30, the PCB fixed structures 30, for the PCB bodies 20 with mounting hole 21 to be removably fixed to backboard 10, specifically, PCB fixed knots Structure 30 may include positive stop spring plate 31, wherein, positive stop spring plate 31 includes the connecting portion 311 being fixedly arranged on the backboard 10, is fixedly arranged on Supporting part 312 on connecting portion 311, and it is convexly equipped in the limiting section 313 of 312 tip edge of supporting part, here, limiting section 313 Arranged on 312 tip edge of supporting part, it may pass through mounting hole 21 and push against PCB bodies 20 and form spacing fixation.In the present embodiment Preferably the gap 3131 being divided to limiting section 313 for two independent sectors will be offered on the limiting section 313.It also will be understood that For：PCB bodies 20 are sheathed on limiting section 313 by mounting hole 21, and spacing along the axial direction and limiting section 313 of limiting section 313 Coordinate, i.e., PCB bodies 20 are limited shrapnel 31 and are fixed on backboard 10, can not move linearly along the axial direction of limiting section 313.

As described above, the PCB fixed structures 30 that the utility model embodiment provides, by the backboard 10 of backlight module Positive stop spring plate 31 is set, which includes connecting portion 311, supporting part 312, and in 312 tip edge projection of supporting part There is the limiting section 313 for the mounting hole 21 that can be arranged on PCB bodies 20, realize axial along limiting section 313 to PCB bodies 20 Kinematic constraint, and limiting section 313 being divided to for two parts by opening up gap 3131 on limiting section 313, makes people can be with By two parts of 3131 both sides of gap of opposite compressing limiting section 313 so that it is mutually drawn close, so as to release and mounting hole 21 The abutting state of inner wall, so can easily dismantle PCB bodies 20, in this way, when avoiding using EVA double faced adhesive tapes fixation PCB Inconvenience in maintenance or process of rework, and may be damaged caused by PCB, it also avoid existing using screw fixation method The problem of technique is cumbersome, simplifies the installation of backlight module, disassembles or maintenance process, reduce human cost and goods and materials cost, Improve production efficiency.

Further, in the utility model embodiment, the underrun gum (not shown) of connecting portion 311 is fixedly connected In on backboard 10.Specifically, relevant position is covered with gum on the bottom surface of connecting portion 311 and backboard 10, and it is glued mutually Get up, so as to fulfill being fixedly connected between positive stop spring plate 31 and backboard 10, structure is simple and easy to implement for this.Certainly, according to reality Situation, can replace with other connection modes by the connection mode of splicing, not do unique restriction herein.

Further, in the utility model embodiment, Fig. 2 to Fig. 3 is referred to, supporting part 312 includes the first support point Portion 3121 and second supports branch 3122, wherein, the first support branch 3121 and second supports branch 3122 to be respectively fixedly connected in even The both ends of the surface of socket part 311, and face each other thirty years of age of inclination.The structure on the one hand ensure PCB bodies when being fixed on backboard 10 with Backboard 10 keeps certain spacing, on the other hand, the top of inclined first support branch 3121 and the second support branch 3122 Top between spacing be decreased to the diameter that can be adapted to mounting hole 21, prepare for the axial limitings of PCB bodies.Certainly, Supporting part 312 can also be other forms structure, not do unique restriction herein.

Further, in the utility model embodiment, Fig. 3 to Fig. 4 is referred to, limiting section 313 includes overarm body 3132 and spacing bayonet 2233, wherein overarm body 3132 is convexly equipped in the tip edge of supporting part 312,3133 projection of limit fastener In the tip edge of overarm body 3132, the top bottom two sides of PCB bodies 20 respectively with 312 top of supporting part and limit fastener 3133 Support to be formed it is spacing.Specifically, overarm body 3132 is interference fitted with mounting hole 21, and inclined first supports branch 3121 and the Two support branches 3122 ensure PCB bodies 20 cannot along the slip axially upwards of overarm body 3132, limit fastener 3133 it is outer Edge diameter dimension should be greater than 21 diameter dimension of mounting hole, to ensure that PCB bodies 20 cannot be along overarm body 3132 axially downwardly Drop.

Further, in the utility model embodiment, referring to Fig. 4, overarm body 3132 is hollow columnar part, and it is outstanding Beam body 3132 and limit fastener 3133 by gap 3131 to being partly divided into left and right two parts of face, a left side for body 3132 of hanging oneself from a beam, Right two-part bottom is fixedly arranged on the tip edge of the first support branch 3121 and the top side of the second support branch 3122 respectively Edge.Here, by being preferably hollow columnar part by overarm body 3132, and on the overarm body 3132 and limit fastener 3133 Gap 3131 is opened up, by limiting section 313 to being partly divided into two independent parts, the elasticity of stretching of limiting section 313 is added, installs When, only by lightly pressing PCB bodies 20 limit fastener 3133 need to be made pass through mounting hole 21, during dismounting, will need to limited The left and right two parts in position portion 313 are pressed toward relative direction, make limiting section 313 that elastic deformation occur, so as to release and mounting hole 21 The abutting state of inner wall, causes limit fastener 3133 to be able to by mounting hole 21, you can tear PCB bodies 20 from backboard 10 open Under, so as to meet the stability of PCB installations and quick detachable property.

Preferably, in the utility model embodiment, limiting section 313, supporting part 312 and connecting portion 311 are conduction Part, i.e., using conductive material.It should be noted that when fixing PCB in the backboard of backlight module using EVA double faced adhesive tapes, also need Ground connection can just be played the role of by increasing a conductive fabric and being connected with backboard 10, and provided for the utility model embodiment PCB fixed structures, limiting section 313, supporting part 312 and connecting portion 311 are both preferably and use conductive material, can remove from above-mentioned Earthy conductive fabric, so as to simplify production and the assembling process of backlight module, reduces human cost and goods and materials cost, improves Production efficiency.

Preferably, in the utility model embodiment, connecting portion 311, supporting part 312, overarm body 3132 and spacing Be buckled 3133 integrated moldings.These components use integrated molding, improve efficiency of assembling.Certainly, according to actual conditions, In the other embodiment of the utility model, these components can also make by other means, not limit uniquely herein.

As shown in Figure 1 to Figure 5, wherein, the utility model embodiment proposes a kind of backlight module, which may include to carry on the back Plate 10 and PCB bodies 20, further comprises PCB fixed structures 30 as described above, and PCB fixed structures 30 removably connect It is connected to PCB bodies 20 and backboard 10.

The backlight module proposed based on above-mentioned technical proposal, the utility model embodiment, by using PCB fixed structures 30, it can easily be installed or removed on the premise of PCB bodies 20 are not damaged, repair PCB bodies 10 and relevant part, And the ground connection conductive fabric that must add when fixing PCB using EVA double faced adhesive tapes can be removed from, so as to simplify the life of backlight module Production and assembling process, reduce human cost and goods and materials cost, improve production efficiency.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model Protection domain within.

Claims

1.PCB fixed structures, for the PCB bodies with mounting hole to be removably fixed in backboard, it is characterised in that described PCB fixed structures include positive stop spring plate, and the positive stop spring plate includes being used for the connecting portion for connecting the backboard, is fixedly arranged on the company Supporting part in socket part, and it is convexly equipped in may pass through the mounting hole and pushing against the PCB sheets for the supporting part tip edge Body forms the limiting section of spacing fixation, and it is at least two-part gap to be offered the limit part on the limiting section.

2. PCB fixed structures as claimed in claim 1, it is characterised in that the bottom surface of the connecting portion is provided with for fixing Connect the gum of the backboard.

3. PCB fixed structures as claimed in claim 1, it is characterised in that the supporting part is fixedly arranged on institute including relative tilt State the first support branch and the second support branch at connecting portion both ends.

4. PCB fixed structures as claimed in claim 3, it is characterised in that the limiting section includes being convexly equipped in the supporting part The overarm body of tip edge, and be convexly equipped in it is described overarm body tip edge limit fastener, the supporting part top and The limit fastener support respectively the PCB bodies opposing sides formed it is spacing.

5. PCB fixed structures as claimed in claim 4, it is characterised in that the overarm body is hollow columnar part, and described Overarm body and the limit fastener are half-and-half divided into the two parts faced, two parts of the overarm body by the gap Bottom be fixedly arranged on respectively it is described first support branch tip edge and it is described second support branch tip edge.

6. PCB fixed structures as described in claim 4 or 5, it is characterised in that the limiting section, the supporting part and institute It is conduct piece to state connecting portion.

7. PCB fixed structures as claimed in claim 6, it is characterised in that the connecting portion, the supporting part, the overarm Body and the limit fastener integrated molding.

8. backlight module, including backboard and PCB bodies, it is characterised in that the backlight module further includes claim 1 to 7 times PCB fixed structures described in one, the PCB fixed structures are detachably connected the PCB bodies and the backboard.