CN219612345U

CN219612345U - Circuit board structure and display

Info

Publication number: CN219612345U
Application number: CN202320350385.9U
Authority: CN
Inventors: 罗雪松
Original assignee: CHONGQING HUIKE JINYANG SCIENCE & TECHNOLOGY CO LTD
Current assignee: CHONGQING HUIKE JINYANG SCIENCE & TECHNOLOGY CO LTD
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-08-29
Anticipated expiration: 2033-02-28

Abstract

The utility model belongs to the technical field of display equipment, and particularly relates to a circuit board structure and a display. The circuit board structure comprises a shielding cover, a circuit board body and a buckling structure, wherein the shielding cover is provided with an accommodating cavity, the shielding cover is provided with an opening, the buckling structure comprises a first buckling part and a second buckling part, the first buckling part is arranged on the cavity wall of the accommodating cavity, the second buckling part is arranged on the board edge of the circuit board body, the circuit board body is arranged in the accommodating cavity through the opening, and the first buckling part is buckled with the second buckling part; wherein, the buckle structure sets up two sets of at least intervals. The utility model can improve the installation efficiency of the circuit board body and the shielding cover through the buckle structure.

Description

Circuit board structure and display

Technical Field

The utility model belongs to the technical field of display equipment, and particularly relates to a circuit board structure and a display.

Background

Electromagnetic waves generated in electronic, electric and communication equipment interfere with signal processing systems in circuits to cause malfunction and performance degradation, and meanwhile, excessive electromagnetic waves cause damage to human health to cause various diseases, so that the electromagnetic waves are strictly limited.

The shielding cover is generally arranged in the display and is generally made of hardware materials and used for shielding tools for electronic signals, electromagnetic interference can be prevented, the influence of external electromagnetic waves on an internal circuit can be shielded by components on the circuit board body, and the external radiation of the internal electromagnetic waves can be reduced.

In the assembly process of the display, the circuit board body and the shielding cover are screwed and fixed by using screws, and a plurality of screws are generally needed. In the process of locking the screws, the circuit board body is required to be taken firstly, the circuit board body is aligned with the opening of the shielding cover, the screws are held by the left hand, the screws are held by the right hand, the screws are adsorbed by the electric batch, the screws are aligned with the screw holes, the electric batch is started to lock the screws on the circuit board body and the shielding cover, and at least four screws are locked by the single shielding cover in a circulating way.

However, the circuit board body and the shield can are fixed by a plurality of screws, so that the circuit board body and the shield can are mounted, the time is long, and the mounting efficiency is influenced.

Disclosure of Invention

The embodiment of the utility model aims to provide a circuit board structure and aims to solve the problem of how to improve the installation efficiency of a circuit board body and a shielding cover.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

in a first aspect, a circuit board structure is provided, which includes a shielding case, a circuit board body and a fastening structure, wherein the shielding case is provided with a containing cavity, the shielding case is provided with an opening, the fastening structure includes a first fastening part and a second fastening part, the first fastening part is arranged on a cavity wall of the containing cavity, the second fastening part is arranged on a board edge of the circuit board body, the circuit board body is installed in the containing cavity through the opening, and the first fastening part is fastened and connected with the second fastening part; wherein, buckle structure sets up two sets of at least intervals.

In some embodiments, at least one second fastening portion is disposed on two opposite board edges of the circuit board body.

In some embodiments, the first fastening portion is a fastening groove formed on a cavity wall of the accommodating cavity; the second buckling part comprises a buckling head and an elastic arm with elastic restoring force, one end of the elastic arm is connected with the circuit board body, and the buckling head is convexly arranged at the other end of the elastic arm and buckled in the buckling groove.

In some embodiments, the elastic arm includes a first arm section connected to the circuit board body, a transition section, and a second arm section disposed opposite to the first arm section and connected to the buckle head, wherein two ends of the transition section are respectively connected to the first arm section and the second arm section.

In some embodiments, the spring arm further comprises a cross plate connected to the second arm segment and a riser connected to the cross plate and extending out of the receiving cavity.

In some embodiments, the circuit board body is provided with a connecting hole, the second buckle part further comprises a positioning plate laid on the circuit board body and a welding leg connected with the positioning plate, the welding leg is inserted into the connecting hole, and the elastic arm is connected with the positioning plate.

In some embodiments, a notch edge of the buckling groove is provided with a first limiting part in a protruding mode towards the accommodating cavity, and the elastic arm abuts against the first limiting part towards the cavity bottom of the accommodating cavity.

In some embodiments, the cavity wall of the accommodating cavity is further provided with a second limiting portion in a protruding mode, the second limiting portion abuts against the first buckling portion, and an end face of one end of the circuit board body abuts against the second limiting portion.

In some embodiments, the circuit board structure further includes a supporting portion, where the supporting portion is convexly disposed on a cavity wall of the accommodating cavity and is spaced from the first fastening portion, and is used for supporting the circuit board body.

In a second aspect, a display is provided that includes the circuit board structure.

The utility model has the beneficial effects that: the circuit board structure comprises a shielding cover, a buckling structure and a circuit board body, wherein the shielding cover is provided with a containing cavity, the circuit board body is pressed in the containing cavity from an opening, at least two groups of buckling structures are arranged, the circuit board body is assembled to the containing cavity, and meanwhile, the first buckling parts are respectively buckled and connected with the second buckling parts, so that the shielding cover can be detachably connected with the circuit board body, and the installation efficiency of buckling connection is high.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or exemplary technical descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic diagram of an assembly structure of a shielding case and a circuit board body according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of the assembled structure of the shield and circuit board body of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an exploded view of the assembled structure of the shield can and the circuit board body of FIG. 1;

FIG. 5 is a schematic perspective view of the second fastening portion of FIG. 4;

fig. 6 is a schematic view of a circuit board body with one end inclined into a housing cavity of a shielding case according to another embodiment of the present utility model;

fig. 7 is a schematic structural diagram of the circuit board body of fig. 6 with one end aligned with the plugging hole and the other end applied with a pressing force F;

FIG. 8 is a schematic cross-sectional view of the shield and circuit board body assembly of FIG. 7;

fig. 9 is a schematic cross-sectional structure of the elastic arm of fig. 8 elastically deformed by the pressing force F;

fig. 10 is a schematic diagram of the circuit board body and the shield can of fig. 9 assembled.

Wherein, each reference sign in the figure:

100. a circuit board structure; 200. a buckle structure; 110. a shield; 111. a receiving chamber; 500. a circuit board body; 112. an opening; 101. a plug hole; 102. a plug terminal; 120. a side plate; 130. a bottom plate; 210. a first buckle portion; 220. a second buckle portion; 201. a buckle head; 202. a spring arm; 2021. a first arm segment; 2022. a second arm segment; 2023. a transition section; 301. a first limit part; 302. a second limit part; 303. a support part; 203. a positioning plate; 204. welding feet; 501. a connection hole; 210', a buckle slot; 2024. a vertical plate; 2025. a cross plate;

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. are based on the orientation or positional relationship shown in the drawings, are for convenience of description only, and are not intended to indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model, and the specific meaning of the terms described above will be understood by those of ordinary skill in the art as appropriate. The terms "first," "second," and "second" 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. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.

Referring to fig. 1 to 3, an embodiment of the present utility model provides a circuit board structure 100, which includes a shielding case 110, a fastening structure 200, and a circuit board body 500. It can be appreciated that various electronic devices are disposed on the circuit board body 500, and after the circuit board body 500 is mounted to the shielding case 110, the shielding case 110 can protect the various electronic devices and reduce the interference of external electromagnetic waves.

The shield 110 has a receiving cavity 111. The shielding case 110 is made of a metal material, which may be Stainless Steel (Stainless Steel) which is a short term for Stainless acid-resistant Steel, and is resistant to weak corrosive media such as air, steam, water, etc., or Steel with Stainless property, which is called Stainless Steel; steel grades resistant to corrosion by chemically corrosive media (chemical etchings of acids, bases, salts, etc.) are called acid-resistant steels. The stainless steel material also has excellent metal ductility and workability, and can be finally obtained into a required stainless steel product through mechanical processing such as shearing, folding, bending, welding and the like.

The shield case 110 has an opening 112, and the shape of the circuit board body 500 is adapted to the shape of the opening 112, so that the circuit board body 500 can be mounted into the receiving cavity 111 through the opening 112. In this embodiment, the shape of the opening 112 is rectangular, and in other embodiments, the shape may be selected according to practical situations, which is not limited herein.

Referring to fig. 1 to 3, the fastening structure 200 includes a first fastening portion 210 and a second fastening portion 220. The second fastening portion 220 is capable of being fastened to the first fastening portion 210, the first fastening portion 210 is disposed on a cavity wall of the accommodating cavity 111, the second fastening portion 220 is disposed on a board edge of the circuit board body 500, the circuit board body 500 is mounted on the accommodating cavity 111 from the opening 112, and the first fastening portion 210 is fastened to the second fastening portion 220; the fastening structure 200 is provided with at least two groups. Each first fastening portion 210 is disposed at intervals on the cavity wall of the accommodating cavity 111, each second fastening portion 220 is disposed at intervals on the board edge of the circuit board body 500, and each first fastening portion 210 is fastened to each second fastening portion 220, so that the circuit board body 500 is detachably mounted in the accommodating cavity 111.

Referring to fig. 1 to 3, the circuit board structure 100 provided in the embodiment of the utility model includes a shielding case 110, a fastening structure 200 and a circuit board body 500, wherein the shielding case 110 has a receiving cavity 111, the circuit board body 500 is pressed into the receiving cavity 111 from an opening 112, meanwhile, a first fastening portion 210 is fastened to connect with a second fastening portion 220, and by providing at least two sets of fastening structures 200, when the circuit board body 500 is assembled into the receiving cavity 111, each first fastening portion 210 is fastened to connect with each second fastening portion 220, so that the circuit board body 500 can be detachably connected with the shielding case 110, and the installation efficiency of fastening connection is high.

It can be appreciated that in this embodiment, the first buckle portion 210 and the second buckle portion 220 are used to realize the detachable connection between the circuit board body 500 and the shielding case 110, and the screw is used to connect the circuit board body 500 and the shielding case 110, so that the whole assembly process only needs about 2 seconds, which not only can improve the assembly efficiency of the production end, but also can reduce the material reserve of the storage end to the screw, and reduce the material cost and the storage cost.

Referring to fig. 1 to 3, optionally, each second fastening portion 220 is disposed on the same board edge of the circuit board body 500, and each first fastening portion 210 is disposed corresponding to each second fastening portion 220, so as to detachably connect the shielding case 110 and the circuit board body 500. It can be understood that the circuit board body 500 is provided with the plugging terminal 102, the plugging terminal 102 and the second fastening portion 220 are respectively located at two opposite sides of the circuit board body 500, and the cavity wall of the accommodating cavity 111 is provided with the plugging hole 101 corresponding to the plugging terminal 102. One end of the circuit board body 500 is fixed by inserting the inserting terminal 102 into the inserting hole 101, and the other end of the circuit board body 500 is fixed by fastening the first fastening part 210 and the second fastening part 220, so that the circuit board body 500 is stably connected with the shielding cover 110.

Referring to fig. 1 to 3, optionally, at least one second fastening portion 220 is disposed on two adjacent board edges of the circuit board body 500, and each first fastening portion 210 is disposed corresponding to each second fastening portion 220, so as to detachably connect the shielding case 110 and the circuit board body 500. It can be understood that, similarly, one end of the circuit board body 500 may be fixed by inserting the plug terminals 102 into the plug holes 101, and the other end of the circuit board body 500 may be fixed by the fastening structures 200 respectively located on two adjacent board edges, so that the circuit board body 500 is stably connected to the shielding case 110.

Referring to fig. 1 to 3, alternatively, at least one second fastening portion 220 is disposed on two opposite sides of the circuit board body 500, and each first fastening portion 210 is disposed corresponding to each second fastening portion 220, so as to detachably connect the shielding case 110 and the circuit board body 500. It can be understood that, similarly, one end of the circuit board body 500 may be fixed by inserting the plug terminal 102 into the plug hole 101, the other end of the circuit board body 500 is fixed by providing the fastening structure 200, and the second fastening parts 220 are respectively located on two opposite edges of the circuit board body 500, and the two opposite edges are respectively located on two sides of the plug terminal 102, so that the circuit board body 500 is stably connected with the shielding case 110.

In this embodiment, two fastening structures 200 are provided, and two second fastening portions 220 are respectively located at two opposite edges of the circuit board body 500. In other embodiments, three or more fastening structures 200 may be provided, and the second fastening portions 220 may be located on the same board edge of the circuit board body 500, or two adjacent board edges of the circuit board body 500 are provided with the second fastening portions 220, which is not limited herein and may be selected according to practical situations.

In some embodiments, the second fastening portion 220 is a slot formed on the circuit board body 500, the first fastening portion 210 is protruding from a wall of the accommodating cavity 111, and one end of the first fastening portion 210 is fastened to the slot.

Referring to fig. 4 to 5, in some embodiments, the first fastening portion 210 is a fastening groove 210 'formed on a wall of the accommodating cavity 111, the fastening groove 210' penetrates through an outer surface of the shielding case 110, one end of the second fastening portion 220 is fastened in the fastening groove 210', and the second fastening portion 220 abuts against a notch edge of the fastening groove 210' to limit the circuit board body 500 from being separated from the accommodating cavity 111.

It will be appreciated that the circuit board body 500 may be removed from the receiving cavity 111 by pushing the second latch 220 out of the latch 210'.

Referring to fig. 3 and 5, in some embodiments, the second fastening portion 220 includes a fastening head 201 and an elastic arm 202 with elastic restoring force, one end of the elastic arm 202 is connected to the circuit board body 500, and the fastening head 201 is protruding from the other end of the elastic arm 202 and is fastened to the fastening slot 210'. It is understood that the elastic arm 202 may be made of plastic or metal with better plasticity, and the buckle 201 and the elastic arm 202 may be integrally formed.

When the circuit board body 500 is installed, the two buckling heads 201 respectively abut against the two side cavity walls of the accommodating cavity 111, and the two elastic arms 202 shrink inwards and elastically deform; after the circuit board body 500 moves in place, the two buckling heads 201 are respectively buckled into the two buckling grooves 210' under the drive of the two elastic arms 202, so that the circuit board body 500 and the shielding cover 110 are detachably connected.

Referring to fig. 3 and 5, in some embodiments, the resilient arm 202 includes a first arm segment 2021 connected to the circuit board body 500, a transition segment 2023, and a second arm segment 2022 disposed opposite to the first arm segment 2021 and connected to the clip 201, where two ends of the transition segment 2023 are respectively connected to the first arm segment 2021 and the second arm segment 2022.

It can be appreciated that the first arm segment 2021 and the second arm segment 2022 are stacked, so that the overall length of the elastic arm 202 can be effectively reduced, which is beneficial to the compactness of the overall structure of the circuit board structure 100.

Optionally, the first arm segment 2021, the transition segment 2023, and the second arm segment 2022 are integrally formed.

Alternatively, the spring arm 202 is also made of a metal material, such as metallic copper, stainless steel or aluminum alloy, and may be selected according to the actual situation, which is not limited herein.

Referring to fig. 3 and 5, in some embodiments, the spring arm 202 further includes a cross plate 2025 connected to the second arm segment 2022, and a vertical plate 2024 connected to the cross plate 2025 and extending outward of the receiving cavity 111. Alternatively, the transverse plate 2025 is parallel to the plane defined by the opening 112, the vertical plate 2024 is perpendicular to the plane defined by the opening 112, and by pushing the vertical plate 2024 in a direction away from the cavity wall of the accommodating cavity 111, the buckle 201 can be driven to be separated from the buckle slot 210', so that the operation process is simple and convenient.

Referring to fig. 4-5, in some embodiments, the circuit board body 500 is provided with a connection hole 501, the second fastening portion 220 further includes a positioning board 203 laid on the circuit board body 500 and a soldering leg 204 connected to the positioning board 203, the soldering leg 204 is inserted into the connection hole 501, and the elastic arm 202 is connected to the positioning board 203.

It is understood that the plug terminal 102 includes an HDMI terminal and a signal terminal, and the solder tail 204 is soldered in the connection hole 501 by a reflow process and is connected to the circuit board body 500. Meanwhile, electronic devices such as HDMI terminals and signal terminals are soldered to the circuit board body 500.

In some embodiments, referring to fig. 4, a first limiting portion 301 is protruding from a notch edge of the fastening groove 210' toward the accommodating cavity 111, and the elastic arm 202 abuts against the first limiting portion 301 toward a cavity bottom of the accommodating cavity 111.

Alternatively, the first limiting portion 301 is plate-shaped, and the first limiting portion 301 may be punched on the cavity wall of the accommodating cavity 111 by a sheet metal process. The first limiting portion 301 is used for limiting and supporting the elastic arm 202, when the circuit board body 500 is pressed into the accommodating cavity 111, the transition section 2023 abuts against the first limiting portion 301 towards the cavity bottom in the accommodating cavity 111, at this time, the circuit board body 500 is pressed in place, and meanwhile, the fastening head 201 is fastened in the corresponding fastening groove 210'.

Referring to fig. 1 and fig. 4, in some embodiments, the cavity wall of the accommodating cavity 111 further includes a second limiting portion 302 protruding, the second limiting portion 302 abuts against the first fastening portion 210, and an end surface of one end of the circuit board body 500 abuts against the second limiting portion 302. It can be understood that the second limiting portion 302 is plate-shaped, and the second limiting portion 302 can be punched on the cavity wall of the accommodating cavity 111 by a sheet metal process. The second limiting portion 302 is used for limiting the movement of the circuit board body 500 along a direction parallel to the board surface of the circuit board body 500.

Referring to fig. 1 and 4, in some embodiments, the shielding case 110 further includes a supporting portion 303, where the supporting portion 303 is protruding from a wall of the accommodating cavity 111 and is spaced apart from the first fastening portion 210, and is used for supporting the circuit board body 500.

Alternatively, the supporting portion 303 is also plate-shaped, and two supporting portions 303 are disposed opposite to each other. The two supporting portions 303 are respectively located on two opposite chamber walls of the accommodating chamber 111. And one of the supporting parts 303 and one of the first fastening parts 210 are positioned on one wall of the accommodating cavity 111, and the other supporting part 303 and the other first fastening part 210 are positioned on the other wall of the accommodating cavity 111.

Referring to fig. 4, 6 to 10, the following describes the installation process of the circuit board body 500 and the shielding case 110 in combination with the structure of the circuit board structure 100:

s1: the second buckle part 220 is welded on the circuit board body 500, one end of the welding leg 204 is inserted in the connecting hole 501 in advance, then the solder is welded by reflow, and after the solder is cooled and solidified, the second buckle part 220 is fixed on the circuit board body 500;

s2: one end of the circuit board body 500 is obliquely inserted into the accommodating cavity 111, so that the signal terminal and the HDMI terminal positioned on the circuit board body 500 are clamped into the corresponding plug holes 101;

s3: pressing the other end of the circuit board body 500 toward the bottom of the accommodating cavity 111, the buckle 201 interferes with the cavity wall of the accommodating cavity 111, and the elastic arm 202 contracts inwards and deforms elastically;

s4: the circuit board body 500 is continuously pressed until the transition section 2023 abuts against the first limiting portion 301, and the second arm section 2022 drives the buckle 201 to buckle into the corresponding buckle slot 210'.

Referring to fig. 2 and fig. 4, in some embodiments, the shielding case 110 includes a bottom plate 130 and a plurality of side plates 120, each of the side plates 120 is connected end to end in sequence and forms the accommodating cavity 111 together with the bottom plate 130, and two first fastening portions 210 are respectively located on two opposite side plates 120, where four side plates 120 are provided.

The utility model also provides a display, which comprises a circuit board structure 100, wherein the specific structure of the circuit board structure 100 refers to the above embodiment, and because the display adopts all the technical schemes of all the above embodiments, the display also has all the beneficial effects brought by the technical schemes of the above embodiments, and the detailed description is omitted.

In some embodiments, the display further comprises a panel structure connecting the circuit board structure 100.

The foregoing is merely an alternative embodiment of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. The circuit board structure is characterized by comprising a shielding cover, a circuit board body and a buckling structure, wherein the shielding cover is provided with an accommodating cavity, the shielding cover is provided with an opening, the buckling structure comprises a first buckling part and a second buckling part, the first buckling part is arranged on the cavity wall of the accommodating cavity, the second buckling part is arranged on the board edge of the circuit board body, the circuit board body is installed in the accommodating cavity through the opening, and the first buckling part is buckled and connected with the second buckling part; wherein, buckle structure sets up two sets of at least intervals.

2. The circuit-board structure of claim 1, wherein: two opposite board edges on the circuit board body are provided with at least one second buckling part.

3. The circuit-board structure of claim 1, wherein: the first buckling part is a buckling groove formed in the cavity wall of the accommodating cavity; the second buckling part comprises a buckling head and an elastic arm with elastic restoring force, one end of the elastic arm is connected with the circuit board body, and the buckling head is convexly arranged at the other end of the elastic arm and buckled in the buckling groove.

4. A circuit-board structure as claimed in claim 3, characterized in that: the elastic arm comprises a first arm section, a transition section and a second arm section, wherein the first arm section and the transition section are connected with the circuit board body, the second arm section is arranged opposite to the first arm section and connected with the buckle head, and two ends of the transition section are respectively connected with the first arm section and the second arm section.

5. The circuit-board structure of claim 4, wherein: the elastic arm further comprises a transverse plate connected with the second arm section and a vertical plate connected with the transverse plate and extending outwards of the accommodating cavity.

6. A circuit-board structure as claimed in claim 3, characterized in that: the circuit board comprises a circuit board body, a first buckling part, a second buckling part, a connecting hole, a positioning plate, a welding leg and an elastic arm, wherein the circuit board body is provided with the connecting hole, the second buckling part further comprises the positioning plate laid on the circuit board body and the welding leg connected with the positioning plate, the welding leg is inserted into the connecting hole, and the elastic arm is connected with the positioning plate.

7. The circuit-board structure of any of claims 3-6, wherein: the notch edge of the buckling groove is provided with a first limiting part in a protruding mode towards the inside of the accommodating cavity, and the elastic arm is abutted to the first limiting part towards the bottom of the accommodating cavity.

8. The circuit-board structure of any one of claims 1-6, wherein: the cavity wall of the accommodating cavity is also convexly provided with a second limiting part, the second limiting part is adjacent to the first buckling part, and the end face of one end of the circuit board body is abutted to the second limiting part.

9. The circuit-board structure of any one of claims 1-6, wherein: the circuit board structure further comprises a bearing part, wherein the bearing part is convexly arranged on the cavity wall of the accommodating cavity and is arranged at intervals with the first buckling part, and is used for supporting the circuit board body.

10. A display comprising a circuit-board structure as claimed in any one of claims 1-9.