CN109149181A - A kind of elastic shading ring for signal transmission - Google Patents
A kind of elastic shading ring for signal transmission Download PDFInfo
- Publication number
- CN109149181A CN109149181A CN201811060746.6A CN201811060746A CN109149181A CN 109149181 A CN109149181 A CN 109149181A CN 201811060746 A CN201811060746 A CN 201811060746A CN 109149181 A CN109149181 A CN 109149181A
- Authority
- CN
- China
- Prior art keywords
- pallet
- inner casing
- pcb board
- shell
- elastic contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/716—Coupling device provided on the PCB
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
- H01R12/57—Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
- H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/22—Contacts for co-operating by abutting
- H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
- H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
- H01R13/2414—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means conductive elastomers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
-
- 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
- H01R4/04—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 using electrically conductive adhesives
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses a kind of elastic shading rings for signal transmission, including Elastic Contact circle, pallet and conductive rubber mat or straight pin, the present invention uses the structure of Elastic Contact circle, pallet and conductive rubber mat or straight pin, the present invention is set between two pieces of pcb boards, Elastic Contact circle is contacted with the electrical contact area of the first pcb board, it is contacted using the ring flange that conductive rubber mat is pasted onto inner casing with the structural body of the second pcb board with electrical contact area, or contacted using the jack structure body that straight pin is plugged on the second pcb board with electrical contact area, realize the signal transmission between two pieces of pcb boards.The present invention passes through the electrical contact area Elastic Contact of Elastic Contact circle and pcb board, efficiently solves the tolerance problem on axially and radially direction when pcb board is connect with pcb board.
Description
Technical field
The present invention relates to pcb board and pcb board interconnection technique field, especially a kind of elasticity shielding for signal transmission
Ring.
Background technique
In civil telecommunications field of antenna, multiple signal join domains are typically provided on pcb board, in order to guarantee having for signal
Effect transmission, it is desirable that the connection of pcb board and pcb board can accommodate the tolerance on axially and radially direction.Existing plate connects plate usual
It is attached using radio frequency (RF) coaxial connector.In order to realize Allowance Design, selected contact form has following characteristics: a, selection
Both ends socket or plug are made of the connection type of intermediate transit three components；B, both ends socket or plug are selected,
It is connected by welding with pcb board, the problem is that, above structure is axial stiffness contact, is unable to satisfy pcb board
To the demand of radial direction tolerance when being connect with pcb board, reduces the joint efficiency of pcb board, constrains the application effect of pcb board
Fruit.
With the arrival in 4G and 5G epoch, BBU and RRH separation, the introducing of massive mimo technology, base station end need to equip
Large-scale aerial array, the tie point between pcb board and pcb board is more and more, and the contact form of the prior art can in complete machine
Disadvantage in property and cost is more and more obvious.In order to solve these problems, there are also the appearance of new contact form, for example,
One is Elastic Contact contact pins, are commonly called as POGOPIN；One is sleave contact pin, it is commonly called as a mao button.CN201610448037.X is disclosed
A kind of resilient contact and the electric connector using resilient contact.CN201621481659.4 discloses a kind of POGO PIN
Connector.CN2015104643955 discloses a kind of mao of button plate electric connector.Above structure also only solves pcb board
The tolerance problem being connect with pcb board axial elasticity, and do not solve the pcb board tolerance problem, that is, shell radially connected with pcb board and connect
The tolerance problem on ground.A kind of elasticity shielding ring structure is designed, while solving axially and radially side when pcb board is connect with pcb board
Upward tolerance problem has larger realistic meaning.
Summary of the invention
The purpose of the present invention is in view of the deficiencies of the prior art and provide it is a kind of for signal transmission elastic shading ring,
The present invention is set between two pieces of pcb boards by the present invention using the structure of Elastic Contact circle, pallet and conductive rubber mat or straight pin,
Elastic Contact circle is contacted with the electrical contact area of the first pcb board, and the ring flange and the second pcb board of inner casing are pasted onto using conductive rubber mat
Structural body contacted with electrical contact area, or the jack structure body of the second pcb board is plugged on using straight pin and is contacted with area is in electrical contact,
Realize the signal transmission between two pieces of pcb boards.The present invention passes through the electrical contact area Elastic Contact of Elastic Contact circle and pcb board, has
Effect solves the tolerance problem on axially and radially direction when pcb board is connect with pcb board.
Realizing the specific technical solution of the object of the invention is:
A kind of elastic shading ring for signal transmission, feature include Elastic Contact circle, pallet and conductive rubber mat or straight pin,
The Elastic Contact circle is hollow cylinder shape made of alloy wire winds or weaves；The wall of its hollow cylinder is equipped with the
One gap；
The pallet is made of inner casing and shell, and inner casing is the sub-assembly of cylinder and ring flange, and one end of cylinder and ring flange connect
It connects, the other end of cylinder is equipped with the second gap, circumferentially sets that there are four axis holes on the ring flange of inner casing, in the outer circle of ring flange
If shell is cylindrical element there are three buckle, cylinder upper end is equipped with third gap, circumferentially sets that there are three card slot, barrels on barrel
Bottom be equipped with keyway；
The outer cover suit of the pallet forms annular groove, the card slot and the buckle card on inner casing ring flange of shell in the outside of inner casing
It connects；
The Elastic Contact circle is set in the annular groove of inner casing and shell by the top of pallet.
First, conductive rubber mat is set to shell by the bottom of pallet when conductive rubber mat and Elastic Contact circle and trays
Interior and ring flange with inner casing is pasted.
Second, straight pin is packed by the bottom of pallet and and inner casing when straight pin and Elastic Contact circle and trays
Axis hole riveting on ring flange.
Conductive rubber mat annular slice part made of the conductive double sided adhesive tape of copper foil or stainless steel foil.
The inner casing of the pallet selects stainless steel, beryllium-bronze, ambrose alloy, kirsite or the production of Al-alloy metal material.
The shell of the pallet selects plastics, nylon or the production of PVC nonmetallic materials.
The present invention is set to two pieces of PCB using the structure of Elastic Contact circle, pallet and conductive rubber mat or straight pin by the present invention
Between plate, Elastic Contact circle is contacted with the electrical contact area of the first pcb board, and the ring flange and of inner casing is pasted onto using conductive rubber mat
The structural body of two pcb boards is contacted with electrical contact area, or jack structure body and the electrical contact of the second pcb board are plugged on using straight pin
The signal transmission between two pieces of pcb boards is realized in area's contact.The present invention passes through the electrical contact area of Elastic Contact circle and pcb board elasticity
Contact, efficiently solves the tolerance problem on axially and radially direction when pcb board is connect with pcb board.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the present invention is combined by conductive rubber mat；
Fig. 2 is the structural schematic diagram of pallet inner casing of the present invention；
Fig. 3 is the structural schematic diagram of pallet shell of the present invention；
Fig. 4 is the structural schematic diagram of the conductive rubber mat of the present invention；
Fig. 5 is the structural schematic diagram that the present invention is combined by straight pin；
Fig. 6 is the use state diagram that the present invention is combined by conductive rubber mat；
Fig. 7 is the use state diagram that the present invention is combined by straight pin.
Specific embodiment
Refering to fig. 1~Fig. 4, the present invention include Elastic Contact circle 10, pallet 20 and conductive rubber mat 30 or straight pin 40, described
Elastic Contact circle 10 is hollow cylinder shape made of alloy wire winds or weaves；The wall of its hollow cylinder is equipped with first
Gap 14；
Refering to fig. 1~Fig. 3, the pallet 20 are made of inner casing 21 and shell 22, and inner casing 21 is the sub-assembly of cylinder and ring flange,
One end of cylinder is connect with ring flange, and the other end of cylinder is equipped with the second gap 23, is circumferentially equipped on the ring flange of inner casing 21
Four axis holes 211 are set in the outer circle of ring flange there are three buckle 212, and shell 22 is cylindrical element, and cylinder upper end is slitted equipped with third
Mouthfuls 223, it circumferentially sets there are three card slot 221 on barrel, the bottom of barrel is equipped with keyway 222.
Refering to fig. 1~Fig. 3, the outside that the shell 22 of the pallet 20 is sleeved on inner casing 21 form annular groove, the card of shell 22
Buckle 212 on slot 221 and 21 ring flange of inner casing is clamped.
Refering to fig. 1~Fig. 4, the Elastic Contact circle 10 are set to the annular groove of inner casing 21 and shell 22 by the top of pallet 20
It is interior.
Refering to fig. 1, first, when conductive rubber mat 30 is combined with Elastic Contact circle 10 and pallet 20, conductive rubber mat 30 is by holding in the palm
The bottom of disk 20 is set in shell 22 and pastes with the ring flange of inner casing 21.
Refering to Fig. 5, second, straight pin 40 is by pallet 20 when straight pin 40 is combined with Elastic Contact circle 10 and pallet 20
Bottom be packed into and on 21 ring flange of inner casing axis hole 211 rivet.
Refering to fig. 1, Fig. 5, the conductive rubber mat 30 ring segment made of the conductive double sided adhesive tape of copper foil or stainless steel foil
Shape part.
Refering to fig. 1, the inner casing 21 of Fig. 5, the pallet 20 select stainless steel, beryllium-bronze, ambrose alloy, kirsite or aluminium alloy
Metal material production.
Refering to fig. 1, Fig. 5, the shell 22 of the pallet 20 select plastics, nylon or the production of PVC nonmetallic materials.
Embodiment 1
The structure that the present invention is combined by conductive rubber mat uses in this way
Refering to fig. 1, Fig. 6, the present invention are set between the first pcb board 50 and the second pcb board 60, are arranged on the first pcb board 50
First electrical contact area 51 and the second electrical contact area 52, third is arranged on the second pcb board 60 and is in electrical contact area 62, and third is in electrical contact
Area 62 is equipped with glued construction body 61.
When work, Elastic Contact circle 10 is contacted with the first electrical contact area 51 on the first pcb board 50, Elastic Contact circle 10
Second gap 23 of inner casing 21 and the third gap (223) on shell 22 are for accommodating the second electricity on first gap 14, pallet 20
Contact zone 52.
The shell 22 of pallet 20 is sleeved on the glued construction body 61 of the second pcb board 60, through on shell 22 keyway 222 with
Glued construction body 61 positions, and conductive rubber mat 30 is pasted between the ring flange of inner casing 21 and structural body 61.
Embodiment 2
The structure that the present invention is combined by straight pin uses in this way
Refering to Fig. 5, Fig. 7, the present invention is set between the first pcb board 50 and the second pcb board 60, is arranged on the first pcb board 50
First electrical contact area 51 and the second electrical contact area 52, third is arranged on the second pcb board 60 and is in electrical contact area 62, and third is in electrical contact
Area 62 is equipped with jack structure body 63.
When work, Elastic Contact circle 10 is contacted with the first electrical contact area 51 on the first pcb board 50, Elastic Contact circle 10
Second gap 23 of the first gap 14 and inner casing 21 on pallet 20 accommodates the second electrical contact area 52.
The shell 22 of pallet 20 is sleeved on the jack structure body 63 of the second pcb board 60, through on shell 22 keyway 222 with
Jack structure body 63 positions, and straight pin 40 is plugged in the jack of jack structure body 63.
The present invention is elastic using multiple first electrical contacts area 51 of multiple pallets and Elastic Contact circle 10 and the first pcb board 50
Contact can make up the first pcb board 50 and the second pcb board since Elastic Contact circle 10 has along axial elastic deformability
Existing axial tolerance between 60；Further, since Elastic Contact circle 10 is arranged in a ring and connects with the first electricity of the first pcb board 50
Touching is Elastic Contact between area 51, remains with diameter between Elastic Contact circle 10 and the cyclic spring contact surface in the first electrical contact area 51
To the mobile space in direction, existing radial tolerance between the first pcb board 50 and the second pcb board 60 can be made up；
In addition, Elastic Contact circle 10 of the present invention is arranged in a ring, first between the first pcb board 50 and the second pcb board 60
It is in electrical contact in the transmission process of area 51 and third electrical contact 62 ground signalling of area, solves the shielding and the earthing of casing of coaxial signal
Tolerance problem.
Claims (4)
1. it is a kind of for signal transmission elastic shading ring, which is characterized in that it include Elastic Contact circle (10), pallet (20) and
Conductive rubber mat (30) or straight pin (40), the Elastic Contact circle (10) are hollow cylinder made of alloy wire winds or weaves
Body shape；The wall of its hollow cylinder is equipped with the first gap (14)；
The pallet (20) is made of inner casing (21) and shell (22), and inner casing (21) is the sub-assembly of cylinder and ring flange, cylinder
One end connect with ring flange, the other end of cylinder is equipped with the second gap (23), is circumferentially equipped on the ring flange of inner casing (21)
Four axis holes (211) are set in the outer circle of ring flange there are three (212) are buckled, and shell (22) is cylindrical element, and cylinder upper end is equipped with
Third gap (223) is circumferentially set on barrel there are three card slot (221), and the bottom of barrel is equipped with keyway (222)；
The shell (22) of the pallet (20) be sleeved on inner casing (21) outside formed annular groove, the card slot (221) of shell (22) with
Buckle (212) clamping on inner casing (21) ring flange；
The Elastic Contact circle (10) is set in the annular groove of inner casing (21) and shell (22) by the top of pallet (20)；
First, conductive rubber mat (30) is by pallet when conductive rubber mat (30) and Elastic Contact circle (10) and pallet (20) combine
(20) bottom is set in shell (22) and pastes with the ring flange of inner casing (21)；
Second, straight pin (40) is by pallet (20) when straight pin (40) and Elastic Contact circle (10) and pallet (20) combine
Bottom is packed into and rivets with the axis hole (211) on inner casing (21) ring flange.
2. a kind of elastic shading ring for signal transmission according to claim 1, which is characterized in that the conduction rubber mat
(30) the annular slice part made of the conductive double sided adhesive tape of copper foil or stainless steel foil.
3. a kind of elastic shading ring for signal transmission according to claim 1, which is characterized in that the pallet (20)
Inner casing (21) select stainless steel, beryllium-bronze, ambrose alloy, kirsite or Al-alloy metal material production.
4. a kind of elastic shading ring for signal transmission according to claim 1, which is characterized in that the pallet (20)
Shell (22) select plastics, nylon or PVC nonmetallic materials production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811060746.6A CN109149181B (en) | 2018-09-12 | 2018-09-12 | Elastic shielding ring for signal transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811060746.6A CN109149181B (en) | 2018-09-12 | 2018-09-12 | Elastic shielding ring for signal transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109149181A true CN109149181A (en) | 2019-01-04 |
| CN109149181B CN109149181B (en) | 2020-05-05 |
Family
ID=64824831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811060746.6A Active CN109149181B (en) | 2018-09-12 | 2018-09-12 | Elastic shielding ring for signal transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109149181B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112234366A (en) * | 2020-09-23 | 2021-01-15 | 四川中成煤田物探工程院有限公司 | Elastic ring electrode for reducing grounding resistance and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11191469A (en) * | 1997-12-26 | 1999-07-13 | Porimatec Kk | Holder and manufacture thereof |
| CN100342590C (en) * | 2002-12-10 | 2007-10-10 | 蒂科电子公司 | Conduvtive elastic contact system having anti overstress column |
| CN101982903A (en) * | 2010-09-15 | 2011-03-02 | 华为技术有限公司 | Circuit board connector and communication equipment |
| CN102509974A (en) * | 2011-11-29 | 2012-06-20 | 上海航天科工电器研究院有限公司 | Flange connector with dovetail groove structure |
| US20140378008A1 (en) * | 2013-06-25 | 2014-12-25 | Bal Seal Engineering, Inc. | Electrical contacts with electrically conductive springs |
| CN105006665A (en) * | 2015-07-25 | 2015-10-28 | 吕永锋 | Fuzz button inter-board electric connector |
| CN106025629A (en) * | 2016-06-21 | 2016-10-12 | 中航光电科技股份有限公司 | Elastic contact part and electric connector employing same |
| CN106099460A (en) * | 2016-08-22 | 2016-11-09 | 上海航天科工电器研究院有限公司 | What a kind of signal transmitted twines wire connection contact element |
| CN206441903U (en) * | 2016-12-30 | 2017-08-25 | 东莞市三义五金塑胶制品有限公司 | A kind of POGO PIN connectors |
-
2018
- 2018-09-12 CN CN201811060746.6A patent/CN109149181B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11191469A (en) * | 1997-12-26 | 1999-07-13 | Porimatec Kk | Holder and manufacture thereof |
| CN100342590C (en) * | 2002-12-10 | 2007-10-10 | 蒂科电子公司 | Conduvtive elastic contact system having anti overstress column |
| CN101982903A (en) * | 2010-09-15 | 2011-03-02 | 华为技术有限公司 | Circuit board connector and communication equipment |
| CN102509974A (en) * | 2011-11-29 | 2012-06-20 | 上海航天科工电器研究院有限公司 | Flange connector with dovetail groove structure |
| US20140378008A1 (en) * | 2013-06-25 | 2014-12-25 | Bal Seal Engineering, Inc. | Electrical contacts with electrically conductive springs |
| CN105006665A (en) * | 2015-07-25 | 2015-10-28 | 吕永锋 | Fuzz button inter-board electric connector |
| CN106025629A (en) * | 2016-06-21 | 2016-10-12 | 中航光电科技股份有限公司 | Elastic contact part and electric connector employing same |
| CN106099460A (en) * | 2016-08-22 | 2016-11-09 | 上海航天科工电器研究院有限公司 | What a kind of signal transmitted twines wire connection contact element |
| CN206441903U (en) * | 2016-12-30 | 2017-08-25 | 东莞市三义五金塑胶制品有限公司 | A kind of POGO PIN connectors |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112234366A (en) * | 2020-09-23 | 2021-01-15 | 四川中成煤田物探工程院有限公司 | Elastic ring electrode for reducing grounding resistance and manufacturing method thereof |
| CN112234366B (en) * | 2020-09-23 | 2021-11-02 | 四川中成煤田物探工程院有限公司 | Elastic ring electrode for reducing grounding resistance and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109149181B (en) | 2020-05-05 |
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