CN217770453U

CN217770453U - High-reflectivity double-sided backlight circuit board capable of being positioned and locked

Info

Publication number: CN217770453U
Application number: CN202221204296.5U
Authority: CN
Inventors: 何雪明
Original assignee: Taicang He's Circuit Board Co ltd
Current assignee: Taicang He's Circuit Board Co ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-11-08
Anticipated expiration: 2032-05-18

Abstract

A high-reflectivity double-sided backlight circuit board capable of being positioned and locked comprises a circuit board and a group of circuit board fixing components, wherein the group of circuit board fixing components are clamped at the edge of the circuit board; wherein, fixed subassembly of circuit board includes the lower bolster, goes up spacing board, fixing base, eccentric wheel and circuit board briquetting, and the lower bolster, go up spacing board and fixing base are the setting of U type, and the one end and the eccentric wheel of circuit board briquetting contact, and the other end that the eccentric wheel was kept away from to the circuit board briquetting contacts with the lateral wall of circuit board, and the edge setting of circuit board is between lower bolster and last spacing board. The utility model discloses a but fix a position two-sided backlight circuit board of high reflectivity of locking sets up the fixed subassembly of circuit board that can lock through the border position department at the circuit board, carries out prepositioning to the circuit board, prevents to take place the displacement in circuit board locking process, stability when improving the circuit board welding, and the fixed subassembly of circuit board of setting can adjust the position on the circuit board in a flexible way, and it is nimble convenient to use.

Description

High-reflectivity double-sided backlight circuit board capable of being positioned and locked

Technical Field

The utility model belongs to the technical field of general mechanical equipment makes, specifically, relate to a can fix a position two-sided backlight circuit board of high reflectivity of locking.

Background

The circuit Board PCB is an english (Printed circuit Board) Printed PCB, and is referred to as a circuit Board for short. Conductive patterns formed by making printed circuits, printed components, or a combination of both, on an insulating material in a predetermined design are commonly referred to as printed circuits. And a conductive pattern on the insulating substrate that provides electrical connection between the components is called a printed wiring. The finished board of printed circuits or printed circuits is then referred to as printed circuit board, also known as printed circuit board or printed circuit board.

In the prior art, in the initial stage of designing a circuit board, manual welding is required to be continuously carried out to adjust the performance of the circuit board, the circuit board needs to be fixed in the process of welding the circuit board, a through hole is reserved at the corner position of the circuit board in the conventional fixing mode of the circuit board, and a stud and a nut are used for locking.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a can fix a position two-sided backlight circuit board of high reflectivity of locking has solved the circuit board among the prior art and has carried out the fixed in-process and reserve the through-hole on will reserving the circuit board, occupies the circuit board position to waste time and energy's problem in the circuit board installation.

The technical scheme is as follows: the utility model provides a high-reflectivity double-sided backlight circuit board capable of being positioned and locked, which comprises a circuit board and a group of circuit board fixing components, wherein the group of circuit board fixing components are clamped at the edge of the circuit board; wherein, fixed subassembly of circuit board includes the lower bolster, goes up spacing board, fixing base, eccentric wheel and circuit board briquetting, just to setting up from top to bottom lower bolster and last spacing board, the fixing base sets up between lower bolster and last spacing board, lower bolster, last spacing board and fixing base are the setting of U type, the eccentric wheel sets up on the fixing base, circuit board briquetting and fixing base are connected to the one end and the eccentric wheel of circuit board briquetting contact, the other end that the eccentric wheel was kept away from to the circuit board briquetting contacts with the lateral wall of circuit board, the edge setting of circuit board is between lower bolster and last spacing board. The utility model discloses a can fix a position two-sided backlight circuit board of high reflectivity of locking sets up the fixed subassembly of circuit board that can lock through the border position department at the circuit board, carries out prepositioning to the circuit board, prevents to take place the displacement in circuit board locking process, stability when improving the circuit board welding, and the fixed subassembly of circuit board of setting can adjust the position on the circuit board in a flexible way, and it is nimble convenient to use.

Furthermore, the high-reflectivity double-sided backlight circuit board capable of being positioned and locked is characterized in that the fixed seat is provided with a rotating shaft, the eccentric wheel is sleeved on the rotating shaft, and the eccentric wheel is connected with the rotating shaft through a key. The rotating shaft is arranged to provide rotating support for the eccentric wheel, so that the eccentric wheel can rotate to different positions.

Furthermore, the above-mentioned two-sided backlight circuit board of high reflectivity that can fix a position locking, be connected with the spanner on the eccentric wheel, be equipped with the eccentric wheel standing groove on the fixing base, the eccentric wheel sets up in the eccentric wheel standing groove, the eccentric wheel standing groove is extended to the one end that the spanner kept away from the eccentric wheel. The eccentric wheel standing groove that sets up provides the space of placing of eccentric wheel to the spanner can make things convenient for the staff to rotate the eccentric wheel.

Furthermore, foretell two-sided backlight circuit board of high reflectivity of fixing a position locking, the one end that the circuit board briquetting is close to the circuit board is connected with insulating cushion, insulating cushion contacts with the lateral wall of circuit board, lower bolster, last limiting plate and fixing base all adopt insulating material. Can make circuit board briquetting compress tightly circuit board lateral wall of laminating more through the insulating cushion that sets up.

Furthermore, the above-mentioned two-sided backlight circuit board of high reflectivity that can fix a position locking, the one end that the circuit board briquetting is close to the fixing base is equipped with a set of guide post, be equipped with a set of guiding hole on the fixing base, a set of guide post and a set of guiding hole one-to-one set up to the one end that the circuit board briquetting was kept away from to the guide post stretches into in the guide hole, guide post and guiding hole sliding connection. The guide post and the structure of guiding hole that set up for the removal that the circuit board briquetting can be stable avoids the jamming.

Further, foretell can fix a position two-sided backlight circuit board of high reflectivity of locking, the end connection that the circuit board briquetting was kept away from to the guide post has the limiting plate, be connected with spacing hole on the guide hole, be equipped with spacing step between guide hole and the spacing hole, the limiting plate sets up in spacing downthehole to the limiting plate can contact with spacing step. The sectional area of the limiting plate is larger than that of the guide hole, so that the guide column can be prevented from being separated from the guide hole.

Furthermore, according to the high-reflectivity double-sided backlight circuit board capable of being positioned and locked, the U-shaped groove is formed among the lower base plate, the upper limiting plate and the fixing seat, the edge of the circuit board is arranged in the U-shaped groove, and the insulating cushion block is located in the U-shaped groove. The U-shaped groove is arranged to limit the edge of the circuit board.

Furthermore, the high-reflectivity double-sided backlight circuit board capable of being positioned and locked is characterized in that the eccentric wheel is provided with an arc-shaped convex part, and the arc-shaped convex part can be in contact with a circuit board pressing block.

Furthermore, the high-reflectivity double-sided backlight circuit board capable of being positioned and locked is characterized in that a nut is arranged on the lower end face of the lower base plate, and a support rod is connected to the nut in a threaded mode. After the circuit board is fixed by the circuit board fixing component, the height of the circuit board can be flexibly adjusted by the support rods with different heights.

Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has: can fix a position two-sided backlight circuit board of high reflectivity of locking, changed the traditional mode through running through the through-hole and carried out the unsettled structure of supporting of circuit board, change into and carry out the fixed of circuit board at the fixed subassembly of circuit board that the border position department of circuit board set up can nimble adjusting position, above-mentioned fixed subassembly of circuit board only needs to pull the spanner and can realize compressing tightly fixedly, practical nimble, convenient, swift of circuit board fast.

Drawings

Fig. 1 is a top view of the positionable and lockable high-reflectivity double-sided backlight circuit board of the present invention;

fig. 2 is a front view of the positionable and lockable high-reflectivity double-sided backlight circuit board of the present invention;

fig. 3 is a top view of the circuit board fixing assembly of the present invention;

fig. 4 is a cross-sectional view of the circuit board fixing assembly of the present invention;

fig. 5 is a partially enlarged view of the circuit board fixing component of the present invention;

fig. 6 is a schematic structural view of the circuit board fixing assembly of the present invention during use.

In the figure: the circuit board comprises a circuit board 1, a circuit board fixing component 2, a lower backing plate 21, a U-shaped groove 211, a nut 212, a support rod 213, an upper limiting plate 22, a fixed seat 23, a rotating shaft 231, an eccentric wheel placing groove 232, a guide hole 233, a limiting hole 234, a limiting step 235, an eccentric wheel 24, a wrench 241, an arc-shaped convex part 242, a circuit board pressing block 25, an insulating cushion block 251, a guide column 252 and a limiting plate 253.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present 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, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

Examples

The locatable and lockable high-reflectivity double-sided backlight circuit board shown in fig. 1 and 2 comprises a circuit board 1 and a group of circuit board fixing components 2, wherein the group of circuit board fixing components 2 are clamped at the edge of the circuit board 1. According to the shape of the circuit board 1, a group of circuit board fixing components 2 are arranged at different positions of the circuit board 1, so that the group of circuit board fixing components 2 are clamped at the edge position of the circuit board 1, and punching on the circuit board 1 is avoided.

Wherein, as shown in fig. 3-6 circuit board fixed component 2 includes lower bolster 21, last limiting plate 22, fixing base 23, eccentric wheel 24 and circuit board briquetting 25, just to setting up about lower bolster 21 and last limiting plate 22, fixing base 23 sets up between lower bolster 21 and last limiting plate 22, lower bolster 21, last limiting plate 22 and fixing base 23 are the U type setting, eccentric wheel 24 sets up on fixing base 23, circuit board briquetting 25 and fixing base 23 are connected to the one end and the eccentric wheel 24 of circuit board briquetting 25 contact, the other end that circuit board briquetting 25 kept away from eccentric wheel 24 contacts with the lateral wall of circuit board 1, the edge setting of circuit board 1 is between lower bolster 21 and last limiting plate 22. The eccentric wheel 24 is provided with an arc-shaped convex part 242, and the arc-shaped convex part 242 can be contacted with the circuit board pressing block 25. The edge of the circuit board 1 is placed between the lower backing plate 21 and the upper limiting plate 22, and then the eccentric wheel 24 is pulled, so that the arc-shaped convex part 242 on the eccentric wheel 24 pushes the circuit board pressing block 25, and the circuit board pressing block 25 is pressed on the outer side wall of the circuit board 1.

Get a circuit board 1, go into the edge card of circuit board 1 between lower bolster 21 and the last spacing board 22, rotatory eccentric wheel 24, can drive circuit board briquetting 25 and remove to the lateral wall of circuit board 1, thereby make circuit board briquetting 25 compress tightly on the lateral wall of circuit board 1, thereby make circuit board fixed subassembly 2 and circuit board 1 fixed, according to circuit board 1's concrete structure, locate the fixed subassembly 2 of installation circuit board at the different positions of circuit board 1, and the quantity of circuit board fixed subassembly 2 is greater than 3, satisfy the support of 3 at least points like this, the support of circuit board 1 that just can be stable carries out.

In order to support the circuit board 1, a suspended structure is formed, a nut 212 is arranged on the lower end surface of the lower backing plate 21, and a support rod 213 is connected to the nut 212 in a threaded manner. The supporting rod 213 connected by the thread can suspend the circuit board 1 in the air, so that the upper and lower surfaces of the circuit board 1 can be welded conveniently.

In the above structure, the fixing seat 23 is provided with the rotating shaft 231, the eccentric wheel 24 is sleeved on the rotating shaft 231, and the eccentric wheel 24 and the rotating shaft 231 are connected through a key. The eccentric wheel 24 is connected with a wrench 241, the fixing seat 23 is provided with an eccentric wheel placing groove 232, the eccentric wheel 24 is arranged in the eccentric wheel placing groove 232, and one end of the wrench 241 far away from the eccentric wheel 24 extends out of the eccentric wheel placing groove 232. The eccentric wheel 24 can be pulled to rotate on the fixed seat 23 by the arranged wrench 241, so that different positions of the eccentric wheel 24 are in contact with the circuit board pressing block 25.

In addition, one end of the circuit board pressing block 25, which is close to the circuit board 1, is connected with an insulating cushion block 251, the insulating cushion block 251 is in contact with the outer side wall of the circuit board 1, and the lower backing plate 21, the upper limiting plate 22 and the fixing seat 23 are all made of insulating materials.

Thirdly, one end of the circuit board pressing block 25 close to the fixing seat 23 is provided with a group of guide posts 252, the fixing seat 23 is provided with a group of guide holes 233, the group of guide posts 252 and the group of guide holes 233 are arranged in a one-to-one correspondence manner, one end of each guide post 252 far away from the circuit board pressing block 25 extends into the corresponding guide hole 233, and the guide posts 252 are connected with the corresponding guide holes 233 in a sliding manner. The end part, far away from the circuit board pressing block 25, of the guide post 252 is connected with a limiting plate 253, the guide hole 233 is connected with a limiting hole 234, a limiting step 235 is arranged between the guide hole 233 and the limiting hole 234, the limiting plate 253 is arranged in the limiting hole 234, and the limiting plate 253 can be in contact with the limiting step 235.

In addition, a U-shaped groove 211 is formed among the lower backing plate 21, the upper limiting plate 22 and the fixed seat 23, the edge of the circuit board 1 is arranged in the U-shaped groove 211, and the insulating cushion block 251 is arranged in the U-shaped groove 211. All set up insulating pad on the up end of lower bolster 21 and the lower terminal surface of last limiting plate 22, insulating pad is located the inner wall of U type recess 211, the circuit board that compresses tightly that can be stable.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a can fix a position two-sided backlight circuit board of high reflectivity of locking which characterized in that: the circuit board fixing device comprises a circuit board (1) and a group of circuit board fixing components (2), wherein the group of circuit board fixing components (2) are clamped at the edge of the circuit board (1);

wherein, fixed subassembly (2) of circuit board includes lower bolster (21), last limiting plate (22), fixing base (23), eccentric wheel (24) and circuit board briquetting (25), lower bolster (21) and last limiting plate (22) are just to setting up from top to bottom, fixing base (23) set up between lower bolster (21) and last limiting plate (22), lower bolster (21), last limiting plate (22) and fixing base (23) are the setting of U type, eccentric wheel (24) set up on fixing base (23), circuit board briquetting (25) and fixing base (23) are connected to the one end and eccentric wheel (24) of circuit board briquetting (25) contact, the other end that eccentric wheel (24) were kept away from in circuit board briquetting (25) contacts with the lateral wall of circuit board (1), the edge setting of circuit board (1) is between lower bolster (21) and last limiting plate (22).

2. The positionally lockable high-reflectivity double-sided backlight circuit board of claim 1, wherein: a rotating shaft (231) is arranged on the fixed seat (23), the eccentric wheel (24) is sleeved on the rotating shaft (231), and the eccentric wheel (24) is connected with the rotating shaft (231) through a key.

3. The lockable high-reflectivity double-sided backlight circuit board of claim 2, wherein: the eccentric wheel (24) is connected with a wrench (241), the fixing seat (23) is provided with an eccentric wheel placing groove (232), the eccentric wheel (24) is arranged in the eccentric wheel placing groove (232), and one end, far away from the eccentric wheel (24), of the wrench (241) extends out of the eccentric wheel placing groove (232).

4. The positionally lockable high-reflectivity double-sided backlight circuit board of claim 1, wherein: one end of the circuit board pressing block (25) close to the circuit board (1) is connected with an insulating cushion block (251), the insulating cushion block (251) is in contact with the outer side wall of the circuit board (1), and the lower padding plate (21), the upper limiting plate (22) and the fixing seat (23) are made of insulating materials.

5. The positionally lockable high-reflectivity double-sided backlight circuit board of claim 4, wherein: one end that circuit board briquetting (25) is close to fixing base (23) is equipped with a set of guide post (252), be equipped with a set of guiding hole (233) on fixing base (23), a set of guide post (252) and a set of guiding hole (233) one-to-one set up to in guide post (252) keep away from the one end of circuit board briquetting (25) stretched into guiding hole (233), guide post (252) and guiding hole (233) sliding connection.

6. The positionally lockable high-reflectivity double-sided backlight circuit board of claim 5, wherein: the end portion that circuit board briquetting (25) was kept away from in guide post (252) has limiting plate (253), be connected with spacing hole (234) on guiding hole (233), be equipped with spacing step (235) between guiding hole (233) and spacing hole (234), limiting plate (253) set up in spacing hole (234) to limiting plate (253) can contact with spacing step (235).

7. The positionally lockable high-reflectivity double-sided backlight circuit board of claim 4, wherein: a U-shaped groove (211) is formed among the lower backing plate (21), the upper limiting plate (22) and the fixing seat (23), the edge of the circuit board (1) is arranged in the U-shaped groove (211), and the insulating cushion block (251) is located in the U-shaped groove (211).

8. The positionally lockable high-reflectivity double-sided backlight circuit board of claim 1, wherein: an arc-shaped convex part (242) is arranged on the eccentric wheel (24), and the arc-shaped convex part (242) can be in contact with the circuit board pressing block (25).

9. The positionally lockable high-reflectivity double-sided backlight circuit board of claim 1, wherein: the lower end face of the lower backing plate (21) is provided with a nut (212), and the nut (212) is in threaded connection with a support rod (213).