CN109687228B - Anti-falling method of USB terminal - Google Patents
Anti-falling method of USB terminal Download PDFInfo
- Publication number
- CN109687228B CN109687228B CN201910078490.XA CN201910078490A CN109687228B CN 109687228 B CN109687228 B CN 109687228B CN 201910078490 A CN201910078490 A CN 201910078490A CN 109687228 B CN109687228 B CN 109687228B
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- shell
- pressing sheet
- connector
- usb
- inner cavity
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/627—Snap or like fastening
- H01R13/6275—Latching arms not integral with the housing
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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
- 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
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5213—Covers
-
- 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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
-
- 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
- H01R13/73—Means for mounting coupling parts to apparatus or structures, e.g. to a wall
Landscapes
- Casings For Electric Apparatus (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention belongs to the technical field of USB terminals, and particularly relates to a USB terminal which comprises a dust filtering yarn sheet, a connector shell, pins, a connecting plug board, heat dissipation holes, a rotating shaft, a spring, a pressing sheet, a friction strip, a pressing sheet groove, a rubber frame, a graphite sheet, an installation frame, an integral shell, an edge turning sheet, a buffer hole and a heat dissipation round hole. According to the USB terminal, the pressing sheet connected with the spring through the rotating shaft is arranged on the side wall of the integral shell of the USB terminal, compared with a conventional USB terminal, the USB terminal has the advantages that the inserted USB connector is fixed through the elasticity of the metal pressing sheet, the pressing effect is good, and the elastic deformation caused by the metal pressing sheet due to long-term use is not easy, so that the connection of a USB interface is loosened, the USB plug is easy to drop, and the normal use is influenced.
Description
Technical Field
The invention belongs to the technical field of USB terminals, and particularly relates to an anti-falling method of a USB terminal.
Background
USB is an external bus standard, used for standardizing the connection and communication between a computer and external equipment, the USB interface has the functions of plug and play and hot plug, and the USB interface can be connected with 127 kinds of peripheral equipment, such as a mouse, a keyboard and the like.
The existing USB terminal generally fixes the USB connector through the metal pressing sheet, the metal pressing sheet is easy to deform after long-term use, the connection between the connector and the terminal is unstable and easy to fall off, and the heat dissipation of the terminal is easy to be unsmooth due to the fact that part of the USB terminal needs to be embedded and installed, and the service life of the USB terminal is affected. In view of this, the present invention provides an anti-drop method for a USB terminal, which has the following features:
(1) the invention provides an anti-falling method of a USB terminal, which is characterized in that a pressing sheet connected with a spring through a rotating shaft is arranged on the side wall of an integral shell of the USB terminal, compared with the conventional USB terminal, the pressing sheet is used for fixing an inserted USB connector in an elastic manner, the pressing effect is better, and the elastic deformation caused by the metal pressing sheet due to long-term use is not easy, so that the connection of the USB connector is loosened, and the normal use is influenced by falling easily.
(2) The invention provides an anti-falling method of a USB terminal, which is characterized in that an installation frame is arranged on the outer side of an integral shell, the side wall can not be directly attached to a connection wall to influence normal heat dissipation through the support of the installation frame when a USB interface is installed in an embedded mode, the heat dissipation effect of the USB terminal in the embedded mode is enhanced through the isolation of the installation frame and a heat dissipation circular hole in the surface of the installation frame, the influence on the USB terminal caused by the vibration and deformation of the connection side wall is reduced through the rubber frame on the outer side, and the USB terminal is protected.
Disclosure of Invention
The invention aims to solve the above problems and provide a method for preventing the disconnection of a USB terminal, wherein a pressing sheet connected with a spring through a rotating shaft is arranged on the side wall of the integral shell of the USB terminal, compared with the conventional USB terminal, the inserted USB connector is elastically fixed by a metal pressing sheet, the pressing effect is better, and the elastic deformation caused by the metal pressing sheet due to long-term use is not easy, so that the connection of the USB interface is loose, the USB interface is easy to fall off and the normal use is influenced, the installation frame is arranged on the outer side of the integral shell, the side wall can not be directly attached to the connecting wall to influence the normal heat dissipation through the support of the installation frame when the USB interface is embedded, the heat dissipation effect when the USB terminal is embedded is enhanced through the isolation of the installation frame and the heat dissipation round hole on the surface of the installation frame, and the influence on the USB terminal caused by the vibration and deformation of the connecting side wall is reduced through the rubber frame on the outer side, the USB terminal is protected.
The invention achieves the aim through the following technical scheme, and the anti-falling method of the USB terminal comprises a connecting mechanism, a protecting mechanism and a fastening mechanism;
the connecting mechanism comprises a connector shell, pins, a connecting plug board, heat dissipation holes, graphite flakes, an integral shell and edge turning pieces, wherein one side of an inner cavity of the integral shell is fixedly connected with the connector shell, one side of the connector shell is fixedly connected with the pins, the other ends of the pins extend to the outer side of the integral shell, the end part of the other side of the connector shell is fixedly connected with one end of the connecting plug board, the connecting plug board is positioned in the inner cavity of the integral shell, one side of the surface of the two ends of the integral shell is communicated with the heat dissipation holes, the inner cavity of the edge of the other side of the integral shell is fixedly connected with the graphite flakes, and the edges of the two ends of the integral shell are fixedly connected with the edge turning pieces;
the protection mechanism comprises a rubber frame, a buffer hole, a heat dissipation round hole and an installation frame, wherein the outer side surfaces of two ends of the integral shell are fixedly connected with the installation frame, the surface of the installation frame is communicated with the heat dissipation round hole, the outer side of the installation frame is connected with the rubber frame in an adhesion mode, and two sides of the rubber frame are communicated with the buffer hole;
fastening device includes pivot, spring, preforming, friction strip and preforming groove, the bottom one side at whole shell is seted up to the preforming groove, the one side of connecting the pivot is rotated to inner chamber one side in preforming groove, the opposite side of pivot is rotated and is connected the tip at the preforming, the one end of one end tip lateral wall fixed connection spring of preforming, the other end fixed connection of spring is on the inner chamber lateral wall in preforming groove, the other end of preforming extends to in the inner chamber of whole shell, the other end tip lateral wall bonding of preforming is connected with the friction strip.
Preferably, the rubbing strip is a rubber strip with a circular cross section, and the rubbing strip is uniformly distributed on the side wall of the end part of the pressing sheet.
Preferably, the whole buffer holes are rectangular, and the buffer holes are uniformly distributed on the surface of the rubber frame.
Preferably, one end of the pressing sheet close to the inner cavity of the integral shell is arc-shaped.
Preferably, the dust filtering yarn piece is integrally sleeved in a rectangular shape, and the shape and the size of the cross section of the dust filtering yarn piece are consistent with those of the cross section of the rubber frame.
Preferably, the edge flap is an arc-shaped flap, and the lifting surface of the edge flap is close to the port of the integral shell.
The invention has the beneficial effects that:
(1) the invention provides an anti-falling method of a USB terminal, which is characterized in that a pressing sheet connected with a spring through a rotating shaft is arranged on the side wall of an integral shell of the USB terminal, compared with the conventional USB terminal, the pressing sheet is used for fixing an inserted USB connector in an elastic manner, the pressing effect is better, and the elastic deformation caused by the metal pressing sheet due to long-term use is not easy, so that the connection of the USB connector is loosened, and the normal use is influenced by falling easily.
(2) The invention provides an anti-falling method of a USB terminal, which is characterized in that an installation frame is arranged on the outer side of an integral shell, the side wall can not be directly attached to a connection wall to influence normal heat dissipation through the support of the installation frame when a USB interface is installed in an embedded mode, the heat dissipation effect of the USB terminal in the embedded mode is enhanced through the isolation of the installation frame and a heat dissipation circular hole in the surface of the installation frame, the influence on the USB terminal caused by the vibration and deformation of the connection side wall is reduced through the rubber frame on the outer side, and the USB terminal is protected.
Drawings
FIG. 1 is a schematic diagram of the overall side view internal structure of the present invention;
FIG. 2 is a schematic view of the overall front view structure of the present invention;
FIG. 3 is a schematic top view of the present invention;
fig. 4 is a schematic view of the structure of the connector housing and the connection board according to the present invention.
In the figure: 1. dust filtration yarn piece, 2, connector shell, 3, pin, 4, connection picture peg, 5, louvre, 6, pivot, 7, spring, 8, preforming, 9, friction strip, 10, preforming groove, 11, rubber frame, 12, graphite flake, 13, installation frame, 14, whole shell, 15, edge turned sheet, 16, buffering hole, 17, heat dissipation round hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
Referring to fig. 1-4, an anti-falling method for a USB terminal includes a connecting mechanism for integral connection, a protection mechanism for protecting the USB terminal, and a fastening mechanism for compressing a connector;
the connecting mechanism comprises a connector shell 2, pins 3, a connecting plug board 4, heat dissipation holes 5, graphite sheets 12, an integral shell 14 and edge turning sheets 15, one side of an inner cavity of the integral shell 14 is fixedly connected with the connector shell 2, one side of the connector shell 2 is fixedly connected with the pins 3, the other ends of the pins 3 extend to the outer side of the integral shell 14, the end part of the other side of the connector shell 2 is fixedly connected with one end of the connecting plug board 4, the connecting plug board 4 is positioned in the inner cavity of the integral shell 14, one side of the two end surfaces of the integral shell 14 is communicated with the heat dissipation holes 5, so that heat dissipation inside the integral shell 14 is facilitated, the inner cavity of the edge of the other side of the integral shell 14 is fixedly connected with the graphite sheets 12, the smoothness of inserting of a USB connector is increased, and the edges of the two ends of the integral shell 14 are fixedly connected with the edge turning sheets 15;
the protection mechanism comprises a rubber frame 11, buffer holes 16, a heat dissipation round hole 17 and an installation frame 13, the outer side surfaces of two ends of the integral shell 14 are fixedly connected with the installation frame 13, the surface of the installation frame 13 is communicated with the heat dissipation round hole 17, the outer side of the installation frame 13 is connected with the rubber frame 11 in an adhesion mode, and the two sides of the rubber frame 11 are communicated with the buffer holes 16 to protect the whole USB terminal;
fastening device includes pivot 6, spring 7, preforming 8, rubbing strip 9 and preforming groove 10, bottom one side at whole shell 14 is seted up to preforming groove 10, the one side of the inner chamber one side rotation connection pivot 6 of preforming groove 10, the opposite side rotation connection at preforming 8's tip of pivot 6, the one end tip lateral wall fixed connection spring 7's of preforming 8 one end, spring 7's other end fixed connection is on the inner chamber lateral wall of preforming groove 10, the other end of preforming 8 extends to in the inner chamber of whole shell 14, the other end tip lateral wall bonding of preforming 8 is connected with rubbing strip 9, is convenient for realize compressing tightly the function that connects.
The friction strips 9 are rubber strips with circular cross sections, and the friction strips 9 are uniformly distributed on the side walls of the end parts of the pressing sheets 8, so that the friction force between the joints and the integral shell 13 is increased; the buffer holes 16 are integrally rectangular, and the buffer holes 16 are uniformly distributed on the surface of the rubber frame 11 and used for protecting the integral shell 14 of the terminal; one end of the pressing sheet 8, which is close to the inner cavity of the integral shell 14 of the integral shell, is arc-shaped, so that the pressing sheet 8 can be conveniently jacked up; the dust filtering yarn sheet 1 is integrally sleeved in a rectangular shape, and the shape and the size of the cross section of the dust filtering yarn sheet 1 are consistent with those of the cross section of the rubber frame 11, so that the whole terminal is protected from dust; the edge turning piece 15 is an arc-shaped piece, and the lifting surface of the edge turning piece 15 is close to the port of the integral shell 14, so that the USB connector can be conveniently inserted.
When the invention is used, the electric elements appearing in the application are externally connected with a power supply and a control switch, when in use, the USB connector is inserted into the inner cavity of the integral shell 14 to realize the connection between the connector and the terminal through the insertion of the inner cavity of the connector and the connecting plug board 4, the connecting function is realized through the cable or the jack connecting pin 3, when in insertion, the connector is easily inserted into the inner cavity of the integral shell 14 through the graphite sheet 12 on the side wall of the inner cavity at the end part of the integral shell 14 to increase the sliding coefficient of the plug and the integral shell 14, when the USB connector is contacted with the pressing sheet 8, the whole pressing sheet 8 is jacked up through the bending part at one end of the pressing sheet 8, after the connector is connected with the outer wall of the terminal, the pressing sheet 8 is pressed back due to the elasticity of the spring 7 to realize the function of clamping the connector and the inner cavity of the integral shell 14, and the friction force between the pressing sheet 8 and the connector is increased through the friction strip 9 at one side of the inner cavity of the pressing sheet, the falling off of the joint is prevented;
when installing the USB terminal, support with the installation department lateral wall through installation frame 13, reduce the area of contact of installation department lateral wall and whole shell 14, guarantee the radiating effect of terminal, rubber frame 11 and the installation terminal surface lug connection through the installation frame 13 outside, through the buffer hole 16 on rubber frame 11 surface, prevent to influence the normal work and the shape of terminal because of the shock and the deformation of installation terminal surface, realize the protect function to the terminal, through two inboard filter dust yarn pieces 1 of rubber frame 13, protect the surface of terminal, prevent piling up of dust.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. An anti-drop method of a USB terminal is characterized in that: the USB terminal protection device comprises a connecting mechanism for integral connection, a protection mechanism for protecting a USB terminal and a fastening mechanism for pressing a connector;
the connecting mechanism comprises a connector shell (2), pins (3), a connecting plug board (4), heat dissipation holes (5), graphite sheets (12), a whole shell (14) and edge turning pieces (15), wherein one side of an inner cavity of the whole shell (14) is fixedly connected with the connector shell (2), one side of the connector shell (2) is fixedly connected with the pins (3), the other end of the pins (3) extends to the outer side of the whole shell (14), the other side end of the connector shell (2) is fixedly connected with one end of the connecting plug board (4), the connecting plug board (4) is positioned in the inner cavity of the whole shell (14), one side of the surface of the two ends of the whole shell (14) is communicated with the heat dissipation holes (5) for heat dissipation inside the whole shell (14), and the edge inner cavity of the other side of the whole shell (14) is fixedly connected with the graphite sheets (12), the inserting fluency of the USB connector is increased, and the edges of the two ends of the integral shell (14) are fixedly connected with edge turning pieces (15);
the protection mechanism comprises a rubber frame (11), buffer holes (16), heat dissipation round holes (17) and an installation frame (13), the surfaces of the outer sides of two ends of the integral shell (14) are fixedly connected with the installation frame (13), the surface of the installation frame (13) is communicated with the heat dissipation round holes (17), the outer side of the installation frame (13) is connected with the rubber frame (11) in an adhesion mode, and the two sides of the rubber frame (11) are communicated with the buffer holes (16) to protect the whole USB terminal;
the fastening mechanism comprises a rotating shaft (6), a spring (7), a pressing sheet (8), a friction strip (9) and a pressing sheet groove (10), the pressing sheet groove (10) is formed in one side of the bottom end of the integral shell (14), one side of an inner cavity of the pressing sheet groove (10) is rotatably connected with one side of the rotating shaft (6), the other side of the rotating shaft (6) is rotatably connected with the end of the pressing sheet (8), the side wall of one end of the pressing sheet (8) is fixedly connected with one end of the spring (7), the other end of the spring (7) is fixedly connected onto the side wall of the inner cavity of the pressing sheet groove (10), the other end of the pressing sheet (8) extends into the inner cavity of the integral shell (14), and the side wall of the other end of the pressing sheet (8) is connected with the friction strip (9) in an adhering mode;
the friction strips (9) are rubber strips with circular cross sections, and the friction strips (9) are uniformly distributed on the side wall of the end part of the pressing sheet (8); the whole buffer holes (16) are rectangular, and the buffer holes (16) are uniformly distributed on the surface of the rubber frame (11); one end of the pressing sheet (8) close to the inner cavity of the integral shell (14) of the integral shell is arc-shaped; the dust filtering yarn sheet (1) is integrally sleeved in a rectangular shape, and the shape and the size of the cross section of the dust filtering yarn sheet (1) are consistent with the shape and the size of the cross section of the rubber frame (11); the edge turning piece (15) is an arc-shaped piece, and the lifting surface of the edge turning piece (15) is close to the port of the integral shell (14);
when in use, the USB connector is inserted into the inner cavity of the integral shell (14) to realize the connection between the connector and the terminal through the insertion of the inner cavity of the connector and the connecting inserting plate (4), the connecting function is realized through the cable or the socket connecting pin (3), when in insertion, the connector is easily inserted into the inner cavity of the integral shell (14) through the graphite sheet (12) on the side wall of the inner cavity at the end part of the integral shell (14), the sliding coefficient of the plug and the integral shell (14) is increased, the whole pressing sheet (8) is jacked up through the bending part at one end of the pressing sheet (8) when the USB connector is contacted with the pressing sheet (8), after the connector is connected with the outer wall of the terminal, the pressing sheet (8) is pressed back due to the elasticity of the spring (7), the function of clamping the connector and the inner cavity of the integral shell (14) is realized, and the friction force between the pressing sheet (8) and the connector is increased through the friction strip (9) at one side of the inner cavity of the pressing sheet, the falling off of the joint is prevented;
when the USB terminal is installed, the installation frame (13) and the side wall of the installation position are used for supporting, the contact area between the side wall of the installation position and the whole shell (14) is reduced, the heat dissipation effect of the terminal is ensured, the rubber frame (11) on the outer side of the installation frame (13) is directly connected with the installation end face, the normal work and the shape of the terminal are prevented from being influenced due to vibration and deformation of the installation end face through the buffer holes (16) in the surface of the rubber frame (11), the protection function of the terminal is realized, the surface of the terminal is protected through the dust filtering yarn sheets (1) on the inner sides of the two rubber frames (11), and dust accumulation is prevented;
support through the installation frame guarantees when the embedded installation of USB interface, and the lateral wall can not directly laminate and influence normal heat dissipation on the connecting wall, through the isolation of installation frame (13) and the heat dissipation round hole on installation frame (13) surface, radiating effect when reinforcing the embedded installation of USB terminal to rubber frame (11) through the outside guarantee to reduce because of the vibration and the deformation of connecting the lateral wall to the influence that the USB terminal caused, realize protecting the USB terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910078490.XA CN109687228B (en) | 2019-01-28 | 2019-01-28 | Anti-falling method of USB terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910078490.XA CN109687228B (en) | 2019-01-28 | 2019-01-28 | Anti-falling method of USB terminal |
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| Publication Number | Publication Date |
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| CN109687228A CN109687228A (en) | 2019-04-26 |
| CN109687228B true CN109687228B (en) | 2021-09-24 |
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| CN201910078490.XA Active CN109687228B (en) | 2019-01-28 | 2019-01-28 | Anti-falling method of USB terminal |
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| CN (1) | CN109687228B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115603117B (en) * | 2022-10-20 | 2023-07-14 | 广州昶视电子科技股份有限公司 | Display main board supporting multi-host network connection |
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| CN203300868U (en) * | 2013-06-24 | 2013-11-20 | 苏州华旃航天电器有限公司 | Pull ring type connector |
| CN104934813A (en) * | 2015-04-16 | 2015-09-23 | 连展科技（深圳）有限公司 | Socket electric connector |
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| CN208385714U (en) * | 2018-01-19 | 2019-01-15 | 东莞市丰康五金塑胶制品有限公司 | A kind of single layer USB adapter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN208272232U (en) * | 2018-04-27 | 2018-12-21 | 藤泽电工（上海）有限公司 | A kind of industry refrigerator harness |
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- 2019-01-28 CN CN201910078490.XA patent/CN109687228B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151646A (en) * | 2013-03-27 | 2013-06-12 | 上海航天科工电器研究院有限公司 | Quick unlocking structure of electric connector |
| CN203300868U (en) * | 2013-06-24 | 2013-11-20 | 苏州华旃航天电器有限公司 | Pull ring type connector |
| CN104934813A (en) * | 2015-04-16 | 2015-09-23 | 连展科技（深圳）有限公司 | Socket electric connector |
| CN205793781U (en) * | 2016-05-24 | 2016-12-07 | 深圳市荣泰自动化技术有限公司 | Controller that security performance is high |
| CN206302012U (en) * | 2016-12-16 | 2017-07-04 | 山东轻工职业学院 | A kind of plug easy to plug |
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| CN109687228A (en) | 2019-04-26 |
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Effective date of registration: 20210908 Address after: 523899 4th floor, building 8, South Industrial Zone, Humen Town, Dongguan City, Guangdong Province Applicant after: DONGGUAN NANGUDI ELECTRONICS Co.,Ltd. Address before: 310018 Hangzhou University of Electronic Science and technology, no.1158, No.2 street, Baiyang street, Jingkai District, Hangzhou City, Zhejiang Province Applicant before: He Fei |
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