CN112770580A

CN112770580A - Fixed knot of PCBA board constructs

Info

Publication number: CN112770580A
Application number: CN202110164360.5A
Authority: CN
Inventors: 翁志彬
Original assignee: Hangzhou Xiaopai Intelligent Technology Co ltd
Current assignee: Hangzhou Xiaopai Intelligent Technology Co ltd
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-05-07

Abstract

The invention relates to a fixed structure of PCBA board, including: the structure comprises a structure body, wherein a notch is formed on the structure body, and mounting grooves are correspondingly formed on two opposite side surfaces of the notch; the elastic pieces are arranged in the mounting grooves in a one-to-one correspondence manner; wherein, the elastic component is formed with barb portion towards one side of mounting groove lateral wall, and barb portion can imbed on the lateral wall that is fixed in the mounting groove, and the elastic component can offset the fastening with the border of PCBA board and fix. According to the technical scheme, the two opposite side surfaces of the notch of the structure body are provided with the mounting grooves for the PCBA to be vertically inserted, the barb parts of the elastic pieces are embedded and fixed on the side walls of the mounting grooves, and meanwhile, the elastic pieces are abutted and fixed with the edges of the PCBA.

Description

Fixed knot of PCBA board constructs

Technical Field

The invention relates to the technical field of electronic equipment, in particular to a fixing structure of a PCBA board.

Background

PCBA is the abbreviation of English Printed Cricuit Board + Assembly, that is PCB blank Board is through SMT upper part, in the whole process of DIP plug-in components, abbreviated as PCBA.

Traditional PCBA board relies on the screw fixation, easily causes stress concentration to components and parts on the PCBA board after the equipment, also causes easily that the components and parts soldering tin that is close to the screw hole has the tin phenomenon of splitting, leads to the electric property function to receive the influence.

Disclosure of Invention

The invention aims to provide a fixing structure applied to a PCBA board, which is simple in structure and convenient to mount, can reduce stress concentration on components and can avoid tin cracking of the components.

In order to achieve the purpose, the invention adopts the following technical scheme:

a fixing structure of a PCBA board, comprising:

the structure comprises a structure body, a plurality of supporting rods and a plurality of supporting rods, wherein a notch is formed in the structure body, and mounting grooves are correspondingly formed in two opposite side surfaces of the notch;

the elastic pieces are arranged in the mounting grooves in a one-to-one correspondence manner; wherein, the elastic component towards one side of mounting groove lateral wall is formed with barb portion, barb portion can imbed and be fixed in on the lateral wall of mounting groove, just the elastic component can offset firmly with the border of PCBA board and fix.

Preferably, the elastic part is provided with a guide groove, two opposite side walls of the guide groove are respectively provided with a pressing part, each pressing part is arranged in an opposite inclined manner, and when the PCBA board is arranged in the guide groove in a penetrating manner, the pressing parts can be pressed against and fixed with the edge of the PCBA board.

Preferably, one side of the PCBA plate facing the mounting groove is provided with a limiting opening, and each pressing part can penetrate into the limiting opening.

Preferably, the elastic member is provided with a guide groove, the end parts of two side walls of the guide groove facing the bottom surface of the notch are respectively provided with a pressing part, and at least part of the pressing parts are movably overlapped.

Preferably, the fixed knot constructs still includes the connecting piece, the both ends of connecting piece respectively fixed connection in each the elastic component is kept away from the one end of notch bottom surface, and each the elastic component all is formed with the guide way.

Preferably, the connecting member is integrally formed with each of the elastic members.

Preferably, the elastic member defines a stopper portion, and the two opposite ends of the stopper portion form the barb portion; PCBA face to one side of mounting groove is formed with spacing opening, spacing portion one-to-one spacing butt in spacing opening, and each barb portion one-to-one embedding is fixed in on the relative both sides face of mounting groove.

Preferably, the two opposite side surfaces of the mounting groove are respectively provided with a limiting boss arranged in a mirror image manner, and one end of the elastic element facing the bottom surface of the notch can be abutted against each limiting boss.

Preferably, two opposite side surfaces of the mounting groove are respectively provided with an embedding notch which is correspondingly abutted and fixed with each barb part one by one; or the structure body is a plastic deformation structural part.

Compared with the prior art, the invention has the beneficial effects that:

the fixed knot of PCBA board that provides constructs among the above-mentioned technical scheme, offer the PCBA board vertical insertion's mounting groove of confession at the relative both sides face of notch of structure body, the barb portion embedding of elastic component is fixed on the mounting groove lateral wall, the edge of elastic component and PCBA board offsets fixedly simultaneously, so set up, can quick vertical fixation PCBA board, it is fixed firm, can effectively reduce to cause stress concentration to components and parts, and can avoid components and parts phenomenon that tin cracks to appear, and its installation shared space is less.

Drawings

Fig. 1 is a schematic structural diagram of a fixing structure according to an embodiment.

Fig. 2 is an exploded view of the fixing structure shown in fig. 1.

Fig. 3 is a cross-sectional view of the fastening structure shown in fig. 1.

Fig. 4 is a schematic structural diagram of a fixing structure according to a second embodiment.

Fig. 5 is an exploded view of the fixing structure shown in fig. 4.

Fig. 6 is a cross-sectional view of the fastening structure shown in fig. 4.

Fig. 7 is a schematic structural diagram of a fixing structure according to a third embodiment.

Fig. 8 is an exploded view of the fixing structure shown in fig. 7.

Fig. 9 is a schematic view of the elastic member shown in fig. 7 from another perspective.

Fig. 10 is a cross-sectional view of the fastening structure shown in fig. 7.

Fig. 11 is a schematic structural diagram of a fixing structure according to a fourth embodiment.

Fig. 12 is an exploded view of the fixing structure shown in fig. 11.

Fig. 13 is a cross-sectional view of the fastening structure shown in fig. 11.

Fig. 14 is a schematic structural diagram of a fixing structure according to a fifth embodiment.

Fig. 15 is an exploded view of the fastening structure shown in fig. 14.

Fig. 16 is a schematic view of the elastic member shown in fig. 14 from another perspective.

Fig. 17 is a cross-sectional view of the fastening structure of fig. 14.

100. A fixed structure; 10. a structural body; 11. a recess; 12. mounting grooves; 13. a limiting boss; 20. an elastic member; 21. a barb portion; 22. a guide groove; 221. a pressing part; 23. a limiting part; 30. PCBA board; 31. limiting the opening; 40. a connecting member.

Detailed Description

The present invention will now be described in more detail with reference to the accompanying drawings, in which the description of the invention is given by way of illustration and not of limitation. The various embodiments may be combined with each other to form other embodiments not shown in the following description.

Example one

Referring to fig. 1 to 3, the present embodiment provides a fixing structure 100 applied to a PCBA board 30, the fixing structure 100 has a simple structure and is convenient to assemble, stress on components during assembly can be reduced, stress concentration can be avoided, a tin cracking phenomenon can be avoided, and the fixing structure 100 has good applicability.

The fixing structure 100 includes at least: the structure comprises a structure body 10 and at least one pair of elastic pieces 20, wherein a notch 11 is formed on the structure body 10, the notch 11 is U-shaped, two opposite side surfaces of the notch 11 are correspondingly provided with mounting grooves 12, and a PCBA (printed circuit board assembly) 30 can be vertically inserted and fixed on the structure body 10 along the mounting grooves 12; the elastic members 20 are disposed in the mounting grooves 12 in a one-to-one correspondence. Wherein, the elastic component 20 is formed with barb portion 21 towards the one side of mounting groove 12 side, and barb portion 21 can imbed the lateral wall position department of fixing at mounting groove 12, and elastic component 20 can offset the fastening with the border of PCBA board 30 simultaneously and fix.

In order to limit the assembly position of the elastic element 20, as shown in fig. 2, the two opposite side surfaces of the mounting groove 12 are respectively formed with a limit boss 13 arranged in a mirror image manner, and one end of the elastic element 20 facing the bottom surface of the recess 11 can abut against each limit boss 13, so as to limit the assembly position of the elastic element 20. It can be understood that the mounting groove 12 forms two guide rail sections with different sizes by taking the limit boss 13 as a boundary, which can be respectively recorded as: first groove section and second groove section, the bottom surface of notch 11 is kept away from to first groove section, the size of first groove section and the size looks adaptation of elastic component 20, and the second groove section links up with the bottom surface of notch 11 mutually, the size and the PCBA board 30 looks adaptation of second groove section to carry on spacingly to PCBA board 30 based on the second groove section.

It can be understood that, in order to realize the clamping fit of the barb part 21 and the side wall of the mounting groove 12, the structural body 10 is a plastically deformable structural member, so that the barb part 21 can be embedded and fixed on the side wall of the mounting groove 12; or, be formed with respectively on the relative both sides face of mounting groove 12 with each barb portion 21 one-to-one butt fixed embedding breach, so set up, barb portion 21 can be embedded into in this embedding breach to make elastic component 20 fix on structure body 10.

The elastic member 20 is formed with a guide groove 22, two opposite side walls of the guide groove 22 are provided with pressing portions 221, each pressing portion 221 is arranged in an opposite inclined manner, and when the PCBA board 30 is arranged in the guide groove 22 in a penetrating manner, each pressing portion 221 can be pressed against and fixed to the edge of the PCBA board 30.

It is understood that the insertion and fixation process of the PCBA board 30 in the present embodiment can be described as follows: the worker puts each elastic element 20 into the corresponding first groove section, and makes one side of each elastic element 20 facing the notch 11 abut against the limit boss 13 for limiting; then, the PCBA plate 30 is inserted from top to bottom along the guide groove 22 until the PCBA plate 30 abuts against and is fixed to the bottom surface of the notch 11, at this time, the barb portions 21 are pressed by the PCBA plate 30 and are embedded and fixed to the side walls of the mounting groove 12, and each abutting portion 221 abuts against and is fixed to the edge of the PCBA plate 30. So set up, can realize the fixed to PCBA board 30 based on barb portion 21 and structure body 10's cooperation, the butt of suppressing portion 221 and PCBA board 30 is fixed can realize the fixed to PCBA board 30, and then realizes the fixed mounting between elastic component 20, structure body 10 and PCBA board 30 three to reach the purpose of quick vertical insertion fixed PCBA board 30, and it is convenient to install, and assembly efficiency is better, and overall assembly occupation space is less.

Example two

The difference from the first embodiment is that:

referring to fig. 4 to 6, in order to better fix the PCBA board 30 vertically inserted into the mounting groove 12 based on the pressing portions 221, a limiting opening 31 is formed on a layer of the PCBA board 30 facing the mounting groove 12, and each pressing portion 221 can penetrate into the limiting opening 31, so that each pressing portion 221 can be clamped at the limiting opening 31, thereby achieving the effect of preventing the PCBA board 30 from coming out of the mounting groove 12.

EXAMPLE III

The difference from the second embodiment is that:

referring to fig. 7 to 10, in the present embodiment, the elastic member 20 is formed with a guide groove 22, two side wall ends of the guide groove 22 facing the bottom surface of the recess 11 are formed with pressing portions 221, and at least a portion of each pressing portion 221 is movably overlapped. It will be appreciated that when the PCBA board 30 is not inserted into the guide slot 22, the two pressing portions 221 at least partially overlap with each other, as shown in FIG. 9; when the PCBA plate 30 is gradually inserted along the guide groove 22, the two pressing portions 221 can be separated from each other under the pushing of the PCBA plate 30 until the two pressing portions 221 are connected with the limiting opening 31 formed on the PCBA plate 30, and then the two pressing portions 221 penetrate into the limiting opening 31 and the two pressing portions 221 return to a partially overlapped state, so that the purpose of preventing the PCBA plate 30 from coming off can be achieved based on the clamping limit between the two pressing portions 221 and the limiting opening 31.

Example four

The difference from the first embodiment is that:

referring to fig. 11 to 13, the fixing structure 100 further includes a connecting member 40, two ends of the connecting member 40 are respectively fixedly connected to an end of each elastic member 20 away from the bottom surface of the recess 11, and each elastic member 20 is formed with a guide groove 22. Preferably, the connecting member 40 is integrally formed with each of the elastic members 20.

The operation process of the worker vertically fixing the PCBA board 30 to the structural body 10 in the present embodiment can be described as follows: firstly, a worker vertically inserts the PCBA 30 into the mounting groove 12 and enables the bottom surface of the PCBA to be connected with the notch 11; thereafter, the two elastic members 20 are simultaneously inserted into the corresponding mounting grooves 12, and pressure is applied to the connecting member 40 until the connecting member 40 abuts the upper edge of the PCBA board 30, at which time the barbs 21 of the elastic members 20 are engaged and fixed to the side walls of the mounting grooves 12. So set up, realize interfering through barb portion 21 between elastic component 20 and the structure body 10, connecting piece 40 cooperatees with elastic component 20 and can carry on spacingly to PCBA board 30 to prevent that PCBA board 30 from deviating from mounting groove 12.

EXAMPLE five

The difference from the second embodiment is that:

referring to fig. 14 to 17, the elastic member 20 of the present embodiment has a simpler structure, specifically, the elastic member 20 is formed with a limiting portion 23, two opposite ends of the limiting portion 23 are formed with barb portions 21, and the barb portions 21 are embedded and fixed on two opposite side surfaces of the mounting groove 12 in a one-to-one correspondence manner; one side of PCBA board 30 facing mounting groove 12 is formed with limiting opening 31, and limiting portion 23 is in limiting abutment in limiting opening 31, so that PCBA board 30 is fixedly assembled at structure body 10 on the basis that each barb portion 21 is embedded and fixed to the corresponding side face of mounting groove 12.

It will be appreciated that the operation of the worker in this embodiment to vertically secure the PCBA board 30 to the structural body 10 can be described as follows: firstly, a worker inserts a part of the PCBA 30 along the mounting groove 12 until the limiting opening 31 is about to penetrate into the mounting groove 12; then, placing the two elastic members 20 at the position of the limiting opening 31, wherein the limiting part 23 of the elastic member 20 is positioned in the limiting opening 31, and the two barb parts 21 are positioned outside the limiting opening 31; thereafter, the PCBA 30 continues to be pushed along the mounting slot 12 until the lower edge of the PCBA 30 meets the bottom surface of the recess 11. So set up, each barb portion 21 embedding is fixed on the both sides face that mounting groove 12 corresponds, and the butt is spacing between spacing portion 23 of elastic component 20 and the spacing opening 31, and then fixes elastic component 20, structure body 10 and PCBA board 30 to the integral type structure.

The fixed knot that provides of each above-mentioned embodiment constructs 100 of PCBA board 30, both sides face relative at the notch 11 of structure body 10 is seted up and is supplied PCBA board 30 vertical insertion's mounting groove 12, the barb portion 21 embedding of elastic component 20 is fixed on mounting groove 12 lateral wall, elastic component 20 offsets fixedly with PCBA board 30's edge simultaneously, so set up, can quick vertical fixation PCBA board 30, it is fixed firm, can effectively reduce to cause stress concentration to components and parts, and can avoid components and parts phenomenon of solder cracking to appear, and its installation shared space is less.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. A fixing structure of a PCBA board, comprising:

the structure comprises a structure body (10), wherein a notch (11) is formed in the structure body (10), and mounting grooves (12) are correspondingly formed in two opposite side surfaces of the notch (11);

the elastic pieces (20) are arranged in the mounting grooves (12) in a one-to-one correspondence mode, and the elastic pieces (20) are at least one pair of elastic pieces (20); wherein, elastic component (20) face one side of mounting groove (12) lateral wall is formed with barb portion (21), barb portion (21) can be embedded and be fixed in on the lateral wall of mounting groove (12), just elastic component (20) can offset the fastening with the border of PCBA board (30) and fix.

2. The fixing structure of claim 1, wherein the elastic member (20) is formed with a guide groove (22), two opposite side walls of the guide groove (22) are provided with pressing portions (221), each pressing portion (221) is arranged in an opposite inclined manner, and when the PCBA board (30) is inserted into the guide groove (22), the pressing portions (221) can be pressed against and fixed to edges of the PCBA board (30).

3. The fixing structure according to claim 2, wherein a limit opening (31) is formed in a side of the PCBA plate (30) facing the mounting groove (12), and each of the pressing portions (221) can penetrate into the limit opening (31).

4. The fixing structure according to claim 1, wherein the elastic member (20) is formed with a guide groove (22), both side wall ends of the guide groove (22) facing the bottom surface of the recess (11) are formed with pressing portions (221), and each pressing portion (221) is at least partially movably overlapped.

5. The fixing structure according to claim 4, wherein a limit opening (31) is formed in a side of the PCBA board (30) facing the mounting groove (12), and each of the pressing portions (221) can penetrate into the limit opening (31).

6. The fixing structure according to claim 1, wherein the fixing structure (100) further comprises a connecting member (40), both ends of the connecting member (40) are respectively fixedly connected to one end of each of the elastic members (20) away from the bottom surface of the recess (11), and each of the elastic members (20) is formed with a guide groove (22).

7. The arrangement, as set forth in claim 6, characterized in that the connecting element (40) is integral with each of the elastic elements (20).

8. The fixing structure according to claim 1, wherein the elastic member (20) defines a stopper portion (23), and opposite ends of the stopper portion (23) each form the barb portion (21); PCBA board (30) towards one side of mounting groove (12) is formed with spacing opening (31), spacing butt in spacing opening (31) of spacing portion (23), and each barb portion (21) one-to-one embedding is fixed in on the relative both sides face of mounting groove (12).

9. A fixing structure as claimed in any one of claims 1 to 8, characterized in that the opposite sides of the mounting groove (12) are formed with limit bosses (13) arranged in mirror image, and one end of the elastic member (20) facing the bottom surface of the recess (11) can abut against each limit boss (13).

10. The fixing structure according to any one of claims 1 to 8, wherein the opposite side surfaces of the mounting groove (12) are respectively formed with an embedding notch which is in one-to-one abutting fixation with each barb portion (21); or the structural body (10) is a plastically deformable structural member.