阅读说明：本技术 一种弹簧安装的pcba板固定结构 (PCBA board fixed knot of spring mounting constructs ) 是由 柳卫东 于 2021-08-15 设计创作，主要内容包括：本发明公开了一种弹簧安装的PCBA板固定结构,包括外壳和PCBA板,所述外壳与PCBA板之间通过螺栓组件连接,所述外壳上设置有固定座,所述固定座上开设有螺纹槽,所述PCBA板上开设有安装孔；所述螺栓组件包括紧固座,所述紧固座的底部设置有第一螺杆,所述紧固座的顶部设置有第二螺杆,所述钢丝的下端与条形容纳槽的底部固定连接,所述第二螺杆位于PCBA板上方的杆身表面套接有螺母,所述螺母与PCBA板之间设置有压紧弹簧。本发明外壳采用不锈钢拉深工艺一次加工成型,延长了外壳的使用寿命,且防水性能好,采用压紧弹簧进行补偿,能够有效地加固PCBA板,在锁紧PCBA板的时候可以借助压紧弹簧的弹力,这样就可以降低对加工的要求,也利于降低检验标准。(The invention discloses a spring-mounted PCBA (printed circuit board assembly) board fixing structure, which comprises a shell and a PCBA board, wherein the shell is connected with the PCBA board through a bolt component, a fixing seat is arranged on the shell, a thread groove is formed in the fixing seat, and a mounting hole is formed in the PCBA board; the bolt assembly comprises a fastening seat, a first screw rod is arranged at the bottom of the fastening seat, a second screw rod is arranged at the top of the fastening seat, the lower end of the steel wire is fixedly connected with the bottom of the strip-shaped accommodating groove, a nut is sleeved on the surface of a rod body above the PCBA, and a compression spring is arranged between the nut and the PCBA. The shell is formed by one-step processing through a stainless steel drawing process, the service life of the shell is prolonged, the waterproof performance is good, the compression spring is adopted for compensation, the PCBA can be effectively reinforced, the PCBA can be locked by means of the elasticity of the compression spring, the processing requirement can be lowered, and the inspection standard can be lowered.)

1. The utility model provides a spring mounting's PCBA board fixed knot constructs, includes shell (1) and PCBA board (2), be connected its characterized in that through bolt assembly (3) between shell (1) and PCBA board (2): the shell (1) is provided with a plurality of fixed seats (4), the number of the fixed seats (4) is multiple, the fixed seats (4) are provided with thread grooves (5), the PCBA board (2) is provided with mounting holes (6), the number of the mounting holes (6) is the same as that of the fixed seats (4), the position distribution of the mounting holes (6) is the same as that of the fixed seats (4), and the mounting holes (6) correspond to the thread grooves (5);

the bolt component (3) comprises a fastening seat (7), the fastening seat (7) is located between the mounting hole (6) and the thread groove (5), a first screw (8) is arranged at the bottom of the fastening seat (7), the first screw (8) is nested in the thread groove (5), the first screw (8) is in threaded connection with the thread groove (5), a second screw (9) is arranged at the top of the fastening seat (7), the second screw (9) penetrates through the mounting hole (6) and extends to the upper portion of the PCBA board (2), strip-shaped accommodating grooves (10) are formed in the front side and the rear side of the second screw (9), steel wires (11) are nested in the strip-shaped accommodating grooves (10), the lower ends of the steel wires (11) are fixedly connected with the bottom of the strip-shaped accommodating grooves (10), nuts (12) are sleeved on the rod body surfaces of the second screws (9) above the PCBA board (2), the nut (12) is in threaded connection with the second screw (9), a compression spring (13) is arranged between the nut (12) and the PCBA board (2), and the compression spring (13) is sleeved on the second screw (9).

2. A spring-mounted PCBA board securing structure according to claim 1, wherein: the cross section of the fastening block (7) in plan view is a regular hexagon.

3. A spring-mounted PCBA board securing structure according to claim 1, wherein: the upper end of the compression spring (13) is connected with a first pressing piece (14), the lower end of the compression spring (13) is connected with a second pressing piece (15), first through holes (16) are formed in the middle portions of the first pressing piece (14) and the second pressing piece (15), the first pressing piece (14) and the second pressing piece (15) are sleeved on the second screw (9) through the first through holes (16), the diameter of the nut (12) is larger than that of the first through holes (16), and the diameters of the first pressing piece (14) and the second pressing piece (15) are larger than that of the compression spring (13).

4. A spring-mounted PCBA board securing structure according to claim 3, wherein: be provided with first gasket (17) between first preforming (14) and nut (12), be provided with second gasket (18) between second preforming (15) and PCBA board (2), first gasket (17) and second gasket (18) all cup joint on second screw rod (9), first gasket (17) and second gasket (18) all adopt silicon rubber to process and make.

5. A spring-mounted PCBA board securing structure according to claim 1, wherein: the shell (1) is formed by one-step processing through a stainless steel drawing process.

6. A spring-mounted PCBA board securing structure according to claim 1, wherein: the first screw rod (8), the fastening seat (7) and the second screw rod (9) are integrally processed and formed through a die.

7. A spring-mounted PCBA board securing structure according to claim 1, wherein: a supporting spring (19) is arranged between the fastening seat (7) and the PCBA (printed circuit board assembly) board (2), and the supporting spring (19) is sleeved on the second screw rod (9).

8. A spring-mounted PCBA board fixture structure as claimed in claim 7, in which: the upper end of supporting spring (19) is connected with first backing sheet (20), the lower extreme of supporting spring (19) is connected with second backing sheet (21), second through-hole (22) have all been seted up at the middle part of first backing sheet (20) and second backing sheet (21), first backing sheet (20) and second backing sheet (21) all cup joint on second screw rod (9) through second through-hole (22), the diameter of fastening seat (7) is greater than the diameter of second through-hole (22), the diameter of first backing sheet (20) and second backing sheet (21) is greater than the diameter of supporting spring (19).

9. A spring-mounted PCBA board attachment structure as claimed in claim 8, wherein: be provided with third gasket (23) between first backing sheet (20) and PCBA board (2), be provided with fourth gasket (24) between second backing sheet (21) and fastening seat (7), third gasket (23) and fourth gasket (24) all cup joint on second screw rod (9).

10. A spring-mounted PCBA board attachment structure as claimed in claim 9, wherein: the third gasket (23) and the fourth gasket (24) are both made of silicon rubber.

Technical Field

The invention relates to the field of kitchen scales, in particular to a spring-mounted PCBA board fixing structure.

Background

Kitchen scales, which also belongs to one type of electronic scales, are a tool for accurately measuring the weight of food raw materials used during cooking. The weight-indicating food box can help people accurately express the weight of food, so that people can know how much food is cooked in the cooking process. With the improvement of living standard, the cooking level in the kitchen is higher and higher, and a plurality of people even need to accurately measure the quantity of each food material to one milli when cooking, so that a kitchen scale is used. Kitchen scales are already quite common in modern home life.

At present, most of existing kitchen scales are plastic shells, the use scene is limited, the hole positions of the plastic shells are likely to deviate in the machining process and are not on the same plane, the PCBA board is likely to be distorted in the conventional direct screw locking mode, and the use is affected.

Therefore, it is desirable to provide a spring-mounted PCBA board mounting structure that solves the above problems.

Disclosure of Invention

The invention aims to provide a spring-mounted PCBA fixing structure, wherein a shell is formed by one-step processing through a stainless steel drawing process, the structure is high in strength, not easy to damage and good in waterproof performance, the shell and the PCBA are fixed through a bolt component, compensation is performed through a compression spring on the bolt component, and the PCBA can be locked by means of the elasticity of the compression spring, so that the processing requirement can be reduced, the inspection standard can be favorably reduced, and nuts on a second screw rod can be fixed by twisting steel wires on the second screw rod to prevent the nuts from loosening, so that the defects in the technology are overcome.

In order to achieve the above purpose, the invention provides the following technical scheme: a spring-mounted PCBA board fixing structure comprises a shell and a PCBA board, wherein the shell is connected with the PCBA board through a bolt component, a plurality of fixing seats are arranged on the shell, threaded grooves are formed in the fixing seats, mounting holes are formed in the PCBA board, the number of the mounting holes is the same as that of the fixing seats, the position distribution of the mounting holes is the same as that of the fixing seats, and the mounting holes correspond to the threaded grooves;

the bolt assembly comprises a fastening seat, the fastening seat is located between a mounting hole and a thread groove, a first screw is arranged at the bottom of the fastening seat, the first screw is nested in the thread groove, the thread connection is formed between the first screw and the thread groove, a second screw is arranged at the top of the fastening seat, the second screw penetrates through the mounting hole and extends to the top of the PCBA plate, a bar-shaped accommodating groove is formed in the front side and the rear side of the second screw, a steel wire is nested inside the bar-shaped accommodating groove, the lower end of the steel wire is fixedly connected with the bottom of the bar-shaped accommodating groove, a nut is sleeved on the surface of a rod body, located above the PCBA plate, of the second screw, the thread connection is formed between the nut and the second screw, a compression spring is arranged between the nut and the PCBA plate, and the compression spring is sleeved on the second screw.

Preferably, the fastening block is provided with a regular hexagon in cross section in a plan view.

Preferably, the upper end of the compression spring is connected with a first pressing sheet, the lower end of the compression spring is connected with a second pressing sheet, first through holes are formed in the middle portions of the first pressing sheet and the second pressing sheet, the first pressing sheet and the second pressing sheet are sleeved on the second screw rod through the first through holes, the diameter of the nut is larger than that of the first through hole, and the diameter of the first pressing sheet and that of the second pressing sheet are larger than that of the compression spring.

Preferably, a first gasket is arranged between the first pressing plate and the nut, a second gasket is arranged between the second pressing plate and the PCBA, the first gasket and the second gasket are both sleeved on the second screw rod, and the first gasket and the second gasket are both made of silicon rubber.

Preferably, the shell is formed by one-step processing through a stainless steel drawing process.

Preferably, the first screw rod, the fastening seat and the second screw rod are integrally processed and molded through a mold.

Preferably, a supporting spring is arranged between the fastening seat and the PCBA board, and the supporting spring is sleeved on the second screw rod.

Preferably, the upper end of the supporting spring is connected with a first supporting sheet, the lower end of the supporting spring is connected with a second supporting sheet, the middle parts of the first supporting sheet and the second supporting sheet are provided with second through holes, the first supporting sheet and the second supporting sheet are sleeved on the second screw rod through the second through holes, the diameter of the fastening seat is larger than that of the second through holes, and the diameters of the first supporting sheet and the second supporting sheet are larger than that of the supporting spring.

Preferably, a third gasket is arranged between the first supporting sheet and the PCBA, a fourth gasket is arranged between the second supporting sheet and the fastening seat, and the third gasket and the fourth gasket are both sleeved on the second screw rod.

Preferably, the third gasket and the fourth gasket are both made of silicon rubber.

In the technical scheme, the invention provides the following technical effects and advantages:

1. the shell is formed by one-step processing through a stainless steel drawing process, the structural strength is high, the shell is not easy to damage, the service life of the shell is prolonged, the waterproof performance is good, the shell and the PCBA are fixed through the bolt assembly, the second screw on the bolt assembly penetrates through the mounting hole in the PCBA, the second screw is sleeved with the compression spring for compensation, the PCBA can be effectively reinforced, the PCBA can be locked by means of the elasticity of the compression spring, the processing requirement can be lowered, the inspection standard can be lowered, nuts on the second screw can be fixed by twisting steel wires on the second screw, the nuts are prevented from loosening, the stability of nut fixing is improved, the structure is simple and reliable, the operation is easy, and product processing and quality control are facilitated;

2. the first screw, the fastening seat and the second screw are integrally processed and molded through a die, so that the structural strength is high, the processing is simple, and the manufacturing is convenient;

3. through being provided with supporting spring between PCBA board and fastening seat, the elasticity through supporting spring supports the PCBA board for the installation of PCBA board is stable, can reduce the influence that the shell caused the PCBA board when receiving the impact effectively simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partial schematic view of the present invention;

FIG. 3 is a schematic view of the housing of the present invention;

FIG. 4 is a schematic view of a PCBA board of the present invention;

FIG. 5 is a schematic view of the bolt assembly of the present invention;

FIG. 6 is a view of the fastening seat of the present invention connected to the first and second threaded rods;

FIG. 7 is a schematic view of a first preform according to the present invention;

FIG. 8 is a schematic view of a first support sheet of the present invention.

Description of reference numerals:

the structure comprises a shell 1, a PCBA board 2, a bolt component 3, a fixed seat 4, a thread groove 5, a mounting hole 6, a fastening seat 7, a first screw rod 8, a second screw rod 9, a strip-shaped accommodating groove 10, a steel wire 11, a nut 12, a compression spring 13, a first pressing sheet 14, a second pressing sheet 15, a first through hole 16, a first gasket 17, a second gasket 18, a support spring 19, a first support sheet 20, a second support sheet 21, a second through hole 22, a third gasket 23 and a fourth gasket 24.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

The invention provides a spring-mounted PCBA (printed Circuit Board Assembly) fixing structure as shown in figures 1-7, which comprises a shell 1 and a PCBA 2, wherein the shell 1 is connected with the PCBA 2 through a bolt component 3, a plurality of fixing seats 4 are arranged on the shell 1, a thread groove 5 is formed in each fixing seat 4, mounting holes 6 are formed in the PCBA 2, the number of the mounting holes 6 is the same as that of the fixing seats 4, the position distribution of the mounting holes 6 is the same as that of the fixing seats 4, and the mounting holes 6 correspond to the thread grooves 5;

the bolt component 3 comprises a fastening seat 7, the fastening seat 7 is located between a mounting hole 6 and a thread groove 5, a first screw 8 is arranged at the bottom of the fastening seat 7, the first screw 8 is nested in the thread groove 5, the first screw 8 is in threaded connection with the thread groove 5, a second screw 9 is arranged at the top of the fastening seat 7, the second screw 9 penetrates through the mounting hole 6 and extends to the upper side of the PCBA board 2, strip-shaped accommodating grooves 10 are formed in the front side and the rear side of the second screw 9, nested steel wires 11 are arranged in the strip-shaped accommodating grooves 10, the lower ends of the steel wires 11 are fixedly connected with the bottom of the strip-shaped accommodating grooves 10, a nut 12 is sleeved on the rod body surface of the second screw 9 above the PCBA board 2, the nut 12 is in threaded connection with the second screw 9, a compression spring 13 is arranged between the nut 12 and the PCBA board 2, the compression spring 13 is sleeved on the second screw rod 9.

The overlooking section of the fastening block 7 is a regular hexagon;

the upper end of the compression spring 13 is connected with a first pressing piece 14, the lower end of the compression spring 13 is connected with a second pressing piece 15, the middle parts of the first pressing piece 14 and the second pressing piece 15 are respectively provided with a first through hole 16, the first pressing piece 14 and the second pressing piece 15 are respectively sleeved on the second screw 9 through the first through hole 16, the diameter of the nut 12 is larger than that of the first through hole 16, the diameters of the first pressing piece 14 and the second pressing piece 15 are respectively larger than that of the compression spring 13, the nut 12 can effectively extrude the compression spring 13 through the first pressing piece 14, the compression spring 13 can effectively extrude the PCBA board 2 through the second pressing piece 15, and the PCBA board 2 is stably installed;

a first gasket 17 is arranged between the first pressing piece 14 and the nut 12, a second gasket 18 is arranged between the second pressing piece 15 and the PCBA board 2, the first gasket 17 and the second gasket 18 are both sleeved on the second screw 9, the first gasket 17 and the second gasket 18 are both processed by silicon rubber, the first pressing piece 14 is prevented from directly contacting the nut 12 through the first gasket 17, abrasion is avoided, and the second pressing piece 15 is prevented from directly contacting the PCBA board 2 through the second gasket 18 to cause abrasion to the PCBA board 2;

the shell 1 is formed by one-step processing through a stainless steel drawing process, so that the structural strength is high, the shell is not easy to damage, the service life of the shell 1 is prolonged, and the waterproof performance is good;

the implementation mode is specifically as follows: the shell 1 is formed by one-step processing through a stainless steel drawing process, the structural strength is high, the shell is not easy to damage, the service life of the shell 1 is prolonged, the waterproof performance is good, when the PCBA board 2 is installed, the first screw 8 at the bottom of the bolt component 3 is in threaded connection with the thread groove 5 on the shell 1, the PCBA board 2 is sleeved on the second screw 9 on the bolt component 3 through the installation hole 6, the second gasket 18, the second pressing piece 15, the compression spring 13, the first pressing piece 14 and the first gasket 17 are sleeved on the second screw 9 again, the nut 12 is sleeved on the second screw 9 in a threaded manner and is rotationally screwed tightly, the PCBA board 2 can be effectively reinforced through the compensation of the compression spring 13, the requirement on processing can be reduced by means of the elasticity of the compression spring 13 when the PCBA board 2 is locked, the inspection standard can be favorably reduced, by twisting the steel wire 11 on the second screw 9, can fix nut 12 on the second screw rod 9, prevent that nut 12 is not hard up, the stability that the nut is fixed has been improved, moreover, the steam generator is simple in structure and reliable, easy operation, product processing and quality management and control of being convenient for, most kitchen balance that this embodiment has specifically solved and has existed among the prior art all is plastic casing, the use scene can be restricted, and plastic casing is in the processing, its hole site just probably squints, not on the coplanar, adopt the mode of direct screw locking in the past, PCBA board probably distorts, can influence the problem of using.

The invention provides a spring-mounted PCBA board fixing structure as shown in figures 2, 5-6 and 8, in the technical scheme, the first screw rod 8, the fastening seat 7 and the second screw rod 9 are integrally processed and molded through a die, so that the structure strength is high, and the processing is simple;

a supporting spring 19 is arranged between the fastening seat 7 and the PCBA board 2, the supporting spring 19 is sleeved on the second screw rod 9, and the PCBA board 2 is supported by the supporting spring 19, so that the PCBA board 2 is stably installed, and meanwhile, the influence on the PCBA board 2 caused by impact on the shell 1 can be effectively reduced;

the upper end of the support spring 19 is connected with a first support sheet 20, the lower end of the support spring 19 is connected with a second support sheet 21, the middle parts of the first support sheet 20 and the second support sheet 21 are respectively provided with a second through hole 22, the first support sheet 20 and the second support sheet 21 are respectively sleeved on the second screw 9 through the second through hole 22, the diameter of the fastening seat 7 is larger than that of the second through hole 22, the diameters of the first support sheet 20 and the second support sheet 21 are larger than that of the support spring 19, the fastening seat 7 can effectively support the support spring 19 through the second support sheet 21, and the support spring 19 can effectively support the PCBA board 2 through the first support sheet 20;

a third gasket 23 is arranged between the first support sheet 20 and the PCBA board 2, a fourth gasket 24 is arranged between the second support sheet 21 and the fastening seat 7, the third gasket 23 and the fourth gasket 24 are both sleeved on the second screw 9, the first support sheet 20 can be effectively prevented from directly contacting the PCBA board 2 through the third gasket 23, the PCBA board 2 is protected, and the second support sheet 21 is prevented from directly contacting the fastening seat 7 to cause abrasion through the fourth gasket 24;

the third gasket 23 and the fourth gasket 24 are both made of silicon rubber, and the silicon rubber has excellent heat resistance, cold resistance, dielectric property, ozone resistance, atmospheric aging resistance and other properties, so that the service lives of the third gasket 23 and the fourth gasket 24 are prolonged;

the implementation mode is specifically as follows: first screw rod 8, through mould integration machine-shaping between fastening seat 7 and the second screw rod 9, structural strength is big, and processing is simple, cup joint again between PCBA board 2, earlier with fourth gasket 24, second backing sheet 21, supporting spring 19, first backing sheet 20 and third gasket 23 cup joint on second screw rod 9, support PCBA board 2 through supporting spring 19, make PCBA board 2 installation stable, can reduce the influence that causes PCBA board 2 when shell 1 receives the impact effectively simultaneously, this embodiment has specifically solved the shell that exists among the prior art and has caused the great problem of influence to PCBA board 2 when receiving the impact.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.