CN111970914B - Grounding elastic sheet suitable for assembly and fixation of SMT (surface mount technology) machine - Google Patents
Grounding elastic sheet suitable for assembly and fixation of SMT (surface mount technology) machine Download PDFInfo
- Publication number
- CN111970914B CN111970914B CN202010816970.4A CN202010816970A CN111970914B CN 111970914 B CN111970914 B CN 111970914B CN 202010816970 A CN202010816970 A CN 202010816970A CN 111970914 B CN111970914 B CN 111970914B
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- Prior art keywords
- elastic sheet
- grounding
- smt
- buckle
- grounding elastic
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0064—Earth or grounding circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0067—Devices for protecting against damage from electrostatic discharge
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The invention discloses a grounding elastic sheet suitable for assembly and fixation of an SMT machine, which comprises a grounding elastic sheet and a buckle for fixing the grounding elastic sheet; the buckle penetrates through the grounding elastic sheet and fixedly connects the grounding elastic sheet with the metal shell; at least part of the grounding elastic sheet is electrically connected with a grounding layer of the PCB, and at least part of the grounding elastic sheet is tightly contacted with the metal shell when being fixedly connected with the metal shell; the top of the buckle is provided with an SMT adsorption plane, and the SMT machine is matched and fixed with the metal shell through the SMT adsorption plane; the bottom of the grounding elastic sheet is provided with an SMT automatic part-striking welding surface electrically connected with the grounding layer of the PCB, and the welding surface of the grounding elastic sheet is welded with the grounding layer of the PCB through SMT automatic part-striking. The product of the invention is matched with an SMT machine to lock and fix the PCB on the metal shell without manual locking screw fixation.
Description
Technical Field
The invention relates to the technical field of electronic products, in particular to a grounding elastic sheet suitable for assembly and fixation of an SMT (surface mount technology) machine.
Background
Present PCB board passes through the screw lock and attaches on the metal casing fixed orifices, produces the line and increases the lock and attaches the process, attaches the screw lock on the metal casing fixed orifices in order to reach the requirement that ground connection effect and EMI (electromagnetic radiation), ESD (static) dredged, leads to increasing equipment man-hour and human cost, and the dismouting is inconvenient and unable automatic assembly.
Disclosure of Invention
The invention aims to provide a grounding elastic sheet suitable for assembly and fixation of an SMT machine.
The technical scheme adopted by the invention is as follows:
a grounding elastic sheet suitable for assembly and fixation of an SMT machine comprises a grounding elastic sheet and a buckle for fixing the grounding elastic sheet; the buckle penetrates through the grounding elastic sheet and fixedly connects the grounding elastic sheet with the metal shell; at least part of the grounding elastic sheet is electrically connected with a grounding layer of the PCB, and at least part of the grounding elastic sheet is tightly contacted with the metal shell when being fixedly connected with the metal shell;
the top of the buckle is provided with an SMT adsorption plane, and the SMT machine is matched and fixed with the metal shell through the SMT adsorption plane; the bottom of the grounding elastic sheet is provided with an SMT automatic part-striking welding surface electrically connected with the grounding layer of the PCB, and the welding surface of the grounding elastic sheet is welded with the grounding layer of the PCB through SMT automatic part-striking.
As a preferred embodiment, further, the buckle is an elastic buckle, and specifically, the buckle may be molded by using a rubber material.
As a preferred embodiment, further, the buckle is equipped with first draw-in groove and second draw-in groove from top to bottom, and the ground connection shell fragment cover is established and is fixed in the second draw-in groove, and the buckle is through the locating hole fixed connection that is equipped with on first draw-in groove and the metal casing supporting place the platform.
As a preferred embodiment, furthermore, the grounding elastic sheet has a fixing hole in the middle, and the grounding elastic sheet is sleeved in the second slot of the buckle through the fixing hole.
As a preferred embodiment, further, the height of the uppermost end of the grounding elastic sheet, which is in close contact with the metal shell, in the free state is greater than the height of the first slot.
As a preferred embodiment, further, the upper part of the buckle is a circular truncated cone which is gradually enlarged downwards.
As a preferred embodiment, further, the whole grounding elastic sheet is in a horizontal arch structure with the arch surface facing upwards, the bottom of the buckle is fixed at the notch in the middle section of the arch structure, the two sides of the bottom surface of the buckle corresponding to the notch are provided with SMT (surface mount technology) automatic workpiece welding surfaces, and the grounding elastic sheet is in contact with the metal shell through the outer ends of the two arch arms of the arch structure.
As a preferred embodiment, further, the height of the outer ends of the two bow arms is greater than the height of the first clamping groove.
By adopting the technical scheme, the bottom of the grounding elastic sheet is welded on the PCB through the SMT process, and then the grounding elastic sheet is fixed on the positioning through hole of the metal shell through the plastic clamping hook, so that the metal elastic sheet with two raised sides can be in close contact with multiple points of the metal shell, and the product can meet the grounding effect and EMI (electromagnetic radiation) and ESD (electrostatic discharge) dredging requirements. The product of the invention is matched with an SMT machine to lock and fix the PCB on the metal shell without manual locking screw fixation. The whole assembly process of the invention does not need manual operation, can automatically produce and assemble, is convenient to disassemble and assemble, and reduces the manual locking cost.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and the detailed description;
FIG. 1 is a schematic structural diagram of a grounding spring for assembly and fixation of an SMT machine according to the present invention;
FIG. 2 is a schematic top view of a grounding spring adapted for assembly and fixation of an SMT machine according to the present invention;
FIG. 3 is a schematic view of the grounding spring plate of the present invention;
fig. 4 is a schematic view of the buckle structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
As shown in fig. 1 to 4, the present invention discloses a grounding spring for assembly and fixation of an SMT machine, which includes a grounding spring 1 and a fastener 2 for fixing the grounding spring 1; the buckle 2 penetrates through the grounding elastic sheet 1 and fixedly connects the grounding elastic sheet 1 with the metal shell; at least part of the grounding elastic sheet 1 is electrically connected with a grounding layer of the PCB, and at least part of the grounding elastic sheet 1 is tightly contacted with the metal shell when being fixedly connected with the metal shell;
the top of the buckle 2 is provided with an SMT adsorption plane 3, and an SMT machine operates the buckle 2 to be assembled and fixed with the metal shell through the SMT adsorption plane 3; the bottom of the grounding elastic sheet 1 is provided with an SMT automatic part-striking welding surface 4 electrically connected with a grounding layer of a PCB, and the welding surface 4 of the grounding elastic sheet 1 is welded with the grounding layer of the PCB through SMT automatic part-striking.
As a preferred embodiment, further, the clip 2 is an elastic clip, and specifically, the clip 2 may be molded by using a rubber material.
As a preferred embodiment, further, buckle 2 is equipped with first draw-in groove 5 and second draw-in groove 6 from top to bottom, and 1 cover of ground connection shell fragment is established and is fixed in second draw-in groove 6, and buckle 2 is through the locating hole fixed connection that is equipped with on first draw-in groove 5 and the metal casing supporting place the platform.
As a preferred embodiment, further, the middle of the grounding elastic sheet 1 is provided with a fixing hole 7, and the grounding elastic sheet 1 is sleeved on the second slot 6 of the buckle 2 through the fixing hole 7.
As a preferred embodiment, further, the height of the uppermost end of the grounding elastic sheet 1, which is in close contact with the metal shell, in a free state is greater than the height of the first slot 5.
As a preferred embodiment, the upper part of the buckle 2 is a circular truncated cone which is gradually enlarged downwards.
As a preferred embodiment, further, ground connection shell fragment 1 wholly is the horizontal bow-shaped structure of bow-shaped face up, and the bottom of buckle 2 is fixed in the notch department in bow-shaped structure middle section, and the bottom surface of buckle 2 corresponds the both sides of notch and sets up the automatic welding face 4 of beating of SMT, and ground connection shell fragment 1 contacts with metal casing through the outside end of two bow arms of bow-shaped structure.
As a preferred embodiment, the height of the outer ends of the two bow arms is larger than the height of the first locking groove 5.
Specifically, the assembling process comprises the following steps: establish with the contact spring piece cover with buckle 2 on the back, the SMT machine adsorbs 2 tops of buckle and adsorbs the plane after, beats the piece automatically via the SMT machine and welds the contact spring piece in the PCB board, then can be fixed in the metal casing locating hole with 2 upper end card boxes of buckle through pressing the PCB board. After the assembly is completed, the metal elastic sheet with the two raised sides of the contact elastic sheet is in close contact with the metal shell, so that the grounding function, EMI (electromagnetic radiation) of ESD/EMI and dispersion of ESD (static electricity) are realized.
By adopting the technical scheme, the bottom of the grounding elastic sheet 1 is welded on the PCB through the SMT process, and then is fixed on the positioning through hole of the metal shell through the plastic clamping hook, so that the product can be in close contact with multiple points of the metal shell through the metal elastic sheet with two raised sides, and the grounding effect and the EMI (electromagnetic radiation) and ESD (electrostatic discharge) dredging requirements of the product are met. The product of the invention is matched with an SMT machine to lock and fix the PCB on the metal shell without manually locking and fixing screws. The whole assembly process of the invention does not need manual operation, can automatically produce and assemble, is convenient to disassemble and assemble, and reduces the manual locking cost.
It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Claims (5)
1. A grounding elastic sheet suitable for assembly and fixation of an SMT machine comprises a grounding elastic sheet and a buckle for fixing the grounding elastic sheet; the buckle penetrates through the grounding elastic sheet and fixedly connects the grounding elastic sheet with the metal shell; at least part of the grounding elastic sheet is electrically connected with a grounding layer of the PCB, and at least part of the grounding elastic sheet is tightly contacted with the metal shell when being fixedly connected with the metal shell; the method is characterized in that: the top of the buckle is provided with an SMT adsorption plane, and the SMT machine is matched and fixed with the metal shell through the SMT adsorption plane; the bottom of the grounding elastic sheet is provided with an SMT automatic component-striking welding surface which is electrically connected with a grounding layer of the PCB, and the welding surface of the grounding elastic sheet is welded with the grounding layer of the PCB through SMT automatic component-striking; the buckle is provided with a first clamping groove and a second clamping groove from top to bottom, the grounding elastic sheet is sleeved and fixed on the second clamping groove, and the buckle is fixedly connected with a matched positioning hole on the metal shell through the first clamping groove; the middle of the grounding elastic sheet is provided with a fixing hole, and the grounding elastic sheet is sleeved in a second clamping groove of the buckle through the fixing hole; the whole horizontal bow-shaped structure that is the bow face up that is of ground connection shell fragment, the bottom of buckle is fixed in the notch department in bow-shaped structure middle section, and the bottom surface of buckle corresponds the both sides of notch and sets up the automatic welding face of beating of SMT, and ground connection shell fragment contacts with metal casing through the outside end of two bow arms of bow-shaped structure.
2. The grounding spring piece suitable for assembly and fixation of an SMT machine according to claim 1, wherein: the buckle is an elastic buckle.
3. The grounding spring piece suitable for assembly and fixation of an SMT machine according to claim 1, wherein: the buckle is made of rubber materials.
4. The grounding spring piece suitable for assembly and fixation of an SMT machine according to claim 1, wherein: the height of the uppermost end of the grounding elastic sheet, which is in close contact with the metal shell, in a free state is greater than the height of the first clamping groove.
5. The grounding spring piece suitable for assembly and fixation of an SMT machine according to claim 1, wherein: the upper part of the buckle is a round table which is gradually enlarged downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010816970.4A CN111970914B (en) | 2020-08-14 | 2020-08-14 | Grounding elastic sheet suitable for assembly and fixation of SMT (surface mount technology) machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010816970.4A CN111970914B (en) | 2020-08-14 | 2020-08-14 | Grounding elastic sheet suitable for assembly and fixation of SMT (surface mount technology) machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111970914A CN111970914A (en) | 2020-11-20 |
| CN111970914B true CN111970914B (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010816970.4A Active CN111970914B (en) | 2020-08-14 | 2020-08-14 | Grounding elastic sheet suitable for assembly and fixation of SMT (surface mount technology) machine |
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| CN (1) | CN111970914B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN217881177U (en) * | 2022-07-28 | 2022-11-22 | 安徽皓月电气有限公司 | Electrical element installs shell fragment structure and safe type metal casing condenser fast |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205793627U (en) * | 2016-06-28 | 2016-12-07 | 深圳市飞荣达科技股份有限公司 | Composite shielding liner for pcb board |
| CN208209158U (en) * | 2017-12-29 | 2018-12-07 | 深圳市昱荣电子有限公司 | A kind of high connector for transmitting high-frequency signal |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105847645B (en) * | 2016-05-11 | 2020-03-10 | 宁波舜宇光电信息有限公司 | Camera module based on integrated packaging process, integrated base assembly and manufacturing method thereof |
| US9901016B1 (en) * | 2017-04-14 | 2018-02-20 | Kinsus Interconnect Technology Corp. | Electromagnetic-interference shielding device |
| CN110784999A (en) * | 2019-10-29 | 2020-02-11 | 广州兴森快捷电路科技有限公司 | PCB manufacturing method, PCBA manufacturing method, PCB and SMT template |
| CN210668734U (en) * | 2019-11-27 | 2020-06-02 | 深圳康佳电子科技有限公司 | Grounding device |
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2020
- 2020-08-14 CN CN202010816970.4A patent/CN111970914B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205793627U (en) * | 2016-06-28 | 2016-12-07 | 深圳市飞荣达科技股份有限公司 | Composite shielding liner for pcb board |
| CN208209158U (en) * | 2017-12-29 | 2018-12-07 | 深圳市昱荣电子有限公司 | A kind of high connector for transmitting high-frequency signal |
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| Publication number | Publication date |
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| CN111970914A (en) | 2020-11-20 |
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Address after: 350300 Fuqing City, Fuzhou, Fujian, the reunification of overseas Chinese economic and Technological Development Zone Applicant after: TPV Electronic Technology (Fujian) Co.,Ltd. Address before: 350000 Rongqiao economic and Technological Development Zone, Fuqing City, Fuzhou City, Fujian Province Applicant before: TPV Electronics(Fujian)Co.,Ltd. |
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