CN110364863A - Connector, the manufacturing method of connector, electrical equipment and electric vehicle - Google Patents
Connector, the manufacturing method of connector, electrical equipment and electric vehicle Download PDFInfo
- Publication number
- CN110364863A CN110364863A CN201910647872.XA CN201910647872A CN110364863A CN 110364863 A CN110364863 A CN 110364863A CN 201910647872 A CN201910647872 A CN 201910647872A CN 110364863 A CN110364863 A CN 110364863A
- Authority
- CN
- China
- Prior art keywords
- needle
- connector
- row
- circuit board
- inner end
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000003292 glue Substances 0.000 claims abstract description 53
- 238000005266 casting Methods 0.000 claims abstract description 45
- 238000003466 welding Methods 0.000 claims abstract description 38
- 238000007789 sealing Methods 0.000 claims description 20
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 238000009833 condensation Methods 0.000 abstract description 6
- 230000005494 condensation Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010125 resin casting Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
-
- 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
-
- 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
-
- 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
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The present invention provides a kind of connector, the manufacturing method of connector, electrical equipment and electric vehicle, including connection shell and row's needle, it arranges needle and passes through connection shell, it connects shell and inner end is provided with holding tank, the outer end for arranging needle is located at the outboard end of connection shell, the inner end of row's needle is located in holding tank, connector further includes circuit board and casting glue, circuit board is provided with welding hole, circuit board is arranged in holding tank, the inner end for arranging needle passes through welding hole and welds with welding hole, and casting glue is filled in holding tank, and casting glue is wrapped in outside circuit board, the inner end for arranging needle and welding hole.Casting glue is filled in holding tank, casting glue is wrapped in outside circuit board, the inner end for arranging needle and welding hole, even if arranging needle, there are temperature differences with internal temperature, the formation of condensation is also able to suppress under the package of casting glue, and casting glue plays insulating effect between each terminal of row's needle, the appearance of short-circuit conditions is also prevented, to effectively improve the insulation performance and protective performance of connector.
Description
Technical field
The present invention relates to field of connectors more particularly to a kind of connector, the manufacturing method of connector, electrical equipment and electricity
Motor-car.
Background technique
Connector is common a kind of component in electrical engineering, its effect be connect circuit on distinct device or
Module different in circuit is connected, electric current or signal is enable to circulate or transmit, circuit is made to realize scheduled function.It is existing
Connector includes a public connector and a female connectors, and connection type is inserted into female connect generally by public connector
It connects in device, the electric connection terminal electrical connection in the electric connection terminal and female connectors in public connector.
The development of technology at any time, it is in multicomponent signal that the interior signal transmitted of connector will change from previous single signal, after
And unlike signal may be transmitted using different terminals, therefore present connector is more to carry out data using row's needle
Interaction.
And in new-energy automobile application, new-energy automobile general battery-mounted, charger, electric machine controller, motor
The electrical equipments such as assembly are usually used connecting line between these equipment and are attached, and connecting line is then generally by connection
What device was electrically connected, when electric vehicle charges at runtime or to battery, electrical equipment will generate waste heat, when electric vehicle exists
In cold district in use, due to electrical equipment external environment more low temperature, and the internal environment of electrical equipment is more high
Temperature, and needle is arranged made of metal, heat conduction efficiency is high, and it is easy to cause low temperature to conduct from the outer end of row's needle to the inner end of row's needle,
Since there are the row needle inner ends of temperature difference, low temperature to be easy the condensation in the electrical equipment environment of high temperature, condensation is easy to cause each
Electric connection terminal short circuit, influences the security performance of connector or even entire electrical equipment.
Summary of the invention
The first object of the present invention is to provide a kind of connector of high insulating property.
The production method that the second object of the present invention is to provide a kind of above-mentioned connector.
The third object of the present invention is to provide a kind of electrical equipment with above-mentioned connector.
The fourth object of the present invention is to provide a kind of electric vehicle with above-mentioned connector.
In order to realize that an object of the present disclosure, the present invention provide a kind of connector, including connection shell and row's needle, arrange needle and wear
Connection shell is crossed, shell is connected in inner end and is provided with holding tank, the outer end for arranging needle is located at the outboard end of connection shell, arranges needle
Inner end is located in holding tank, and connector further includes circuit board and casting glue, and circuit board is provided with welding hole, and circuit board setting is accommodating
In slot, the inner end for arranging needle passes through welding hole and welds with welding hole, and casting glue is filled in holding tank, casting glue be wrapped in circuit board,
It arranges outside inner end and the welding hole of needle.
By above scheme as it can be seen that by being provided with circuit board in connector, in the row's needle and welding circuit board of connector
Afterwards, when row's needle is connect with external communication, signal processing can be carried out at the first time in circuit board, and be converted to corresponding signal
It is transferred to late-class circuit, while circuit board is directly set in connector case body, optimization topology layout improves space utilization rate, and
And casting glue is filled in holding tank, casting glue is wrapped in outside circuit board, the inner end for arranging needle and welding hole, even if row's needle and inside temperature
Degree is also able to suppress the formation of condensation there are temperature difference under the package of casting glue, and casting glue row's needle each terminal it
Between play insulating effect, the appearance of short-circuit conditions is also prevented, to effectively improve the insulation performance and protective performance of connector.
Further scheme is that connection shell is provided with positioning column in holding tank, and circuit board is provided with location hole, fixed
Position column is matched with location hole.
Further scheme is that connection shell is additionally provided with rest pad in holding tank, and rest pad and circuit board are adjacent,
There is gap between circuit board and the bottom wall of holding tank.
Therefore the support by the cooperation of positioning column and positioning hole and rest pad to circuit board, therefore can be electricity
The welding of road plate provides good support, improves operation stability and welding quality, while utilizing the bottom of circuit board and holding tank
There is gap between wall, casting glue is enabled to be filled in the gap, thus realize that casting glue wraps up the two sides of circuit board, from
And further increase protective.
Further scheme is that casting glue uses AB glue, epoxide-resin glue, silicon rubber or polyurethane adhesive.
Therefore it can be fully uniformly filled in holding tank by above-mentioned casting glue.
Further scheme is to connect the outboard end of shell to be provided with positioning ring wall, positions in ring wall and is provided with positioning
Slot, the outer end for arranging needle are located in locating slot.
Further scheme is to connect the outboard end of shell to be provided with the first sealing ring mounting groove, the first sealing ring peace
Tankage is located at the periphery of the outer end of row's needle.
Further scheme is to connect the inner end of shell to be provided with the second sealing ring mounting groove, the second sealing ring peace
Tankage is located at the periphery of the inner end of row's needle.
Therefore the outer end by arranging needle is located in locating slot, so as to improve the stability of connection, and utilizes
The sealing ring mounting groove of interior outboard end so that connection shell has multiple mounting modes, and can be carried out close using sealing ring
Envelope, prevents the infiltration of steam.
In order to realize that the second purpose of the invention, the present invention provide a kind of manufacturing method of connector, which is characterized in that connection
Device is the connector of above scheme, and manufacturing method includes:
Circuit board is arranged in holding tank, the inner end for arranging needle passes through welding hole；
The inner end for arranging needle and welding hole are welded；
Casting glue is filled in holding tank, is wrapped in casting glue outside circuit board, the inner end for arranging needle and welding hole；
Solidify casting glue.
In order to realize that third purpose of the present invention, the present invention provide a kind of electrical equipment, which is characterized in that including such as above-mentioned side
The connector of case.
In order to realize that the 4th purpose of the invention, the present invention provide a kind of electric vehicle, which is characterized in that including such as above scheme
Electrical equipment.
By above scheme as it can be seen that by being provided with circuit board in connector, in the row's needle and welding circuit board of connector
Afterwards, when row's needle is connect with external communication, signal processing can be carried out at the first time in circuit board, and be converted to corresponding signal
It is transferred to late-class circuit, while circuit board is directly set in connector case body, optimization topology layout improves space utilization rate, and
And casting glue is filled in holding tank, casting glue is wrapped in outside circuit board, the inner end for arranging needle and welding hole, even if row's needle and inside temperature
Degree is also able to suppress the formation of condensation there are temperature difference under the package of casting glue, and casting glue row's needle each terminal it
Between play insulating effect, the appearance of short-circuit conditions is also prevented, to effectively improve the steady of connector, electrical equipment and electric vehicle
Qualitative energy.
Detailed description of the invention
Fig. 1 is the structure chart of connector embodiment of the present invention.
Fig. 2 is structure chart of the connector embodiment of the present invention under another visual angle.
Fig. 3 is the structural exploded view of connector embodiment of the present invention.
Fig. 4 is the cross-sectional view of connector embodiment of the present invention after welding.
Fig. 5 is cross-sectional view of the connector embodiment of the present invention after filling casting glue.
The invention will be further described with reference to the accompanying drawings and embodiments.
Specific embodiment
Connector embodiment:
Referring to figs. 1 to Fig. 5, connector 1 includes connection shell 11, row's needle 4, circuit board 2 and casting glue 4, connects shell 11
There is outboard end 111 and inner end 112 in opposite two sides, connect shell 11 in inner end 112 and be provided with holding tank 15, accommodate
The periphery of slot 15 has ring wall 151, and the outboard end 111 of connection shell 11 is provided with positioning ring wall 13, setting in positioning ring wall 13
There is locating slot 12, row's needle 4 includes multiple connection needles, and multiple connection needles are arranged side by side, and row's needle 4 passes through connection shell 11, row's needle 4
Outer end 41 is located at the outboard end 111 in locating slot 12 and being located at connection shell 11, the inner end 42 of row's needle 4 be located at holding tank 15 it is interior and
Positioned at the inner end 112 of connection shell 11.The outboard end 111 of connection shell 11 is provided with the first sealing ring mounting groove 14, and first
Sealing ring mounting groove 14 is located at the periphery of the outer end 41 of row's needle 4, and is located at the periphery of positioning ring wall 13, installs in the first sealing ring
Sealing ring 14 is provided on slot 14.
Connection shell 11 be arranged in holding tank 15 there are four positioning column 161, four 161 row's of being located at needles 4 of positioning column
Inner end 42 periphery, connection shell 11 also sets up in holding tank 15 there are four rest pad 162, and a rest pad 162 is arranged
On the peripheral wall of a positioning column 161.
The setting of circuit board 2 mutually in requisition for processing circuit, be such as provided with capacitor, resistance, inductance and connection row 23, and circuit
Plate 2 is provided through multiple welding holes 21, and is provided with multiple pads, pad on the surface backwards to outboard end 111 in circuit board 2
Positioned at the periphery of a welding hole 21, for the setting of circuit board 2 there are four location hole 22, four location holes 22 are located at the outer of welding hole 21
Week, circuit board 2 are arranged in holding tank 15, and positioning column 161 passes through 22 ground of location hole and matches, and rest pad 162 and circuit board 2 are adjacent
It connects, then provides support for circuit board 2, and there is gap between circuit board 2 and the bottom wall of holding tank 15, arrange the inner end 42 of needle 4
Across welding hole 21, inner end 42 and the welding hole 21, pad solder of needle 4 are arranged.
4 material of casting glue can divide using epoxy resin embedding adhesive, single component epoxy casting glue, bicomponent epoxy resin
Casting glue, AB glue, silicon rubber or polyurethane adhesive etc. are potted using the higher AB glue of liquid fluidity in the present embodiment,
Casting glue 4 is filled in holding tank 15, casting glue 4 is wrapped in outside circuit board 2, the inner end 42 for arranging needle 4, pad and welding hole 21,
But also casting glue 4 wraps up two ends between welding hole 21, being wrapped between different connection needles, being wrapped in circuit board
Outside face.
The manufacturing method embodiment of connector:
The manufacturing method of connector 1 includes:
Referring to Fig. 4, circuit board 2 is arranged in holding tank 15 first, the inner end 42 of row's needle 4 passes through welding hole 21；
Then, the inner end 42 for arranging needle 4 is welded with welding hole 21；
Then, casting glue 4 is filled in holding tank 15, casting glue 4 is made to be wrapped in circuit board 2, the inner end 42 for arranging needle 4 and welding hole
Outside 21；
Finally, cooling down and solidifying casting glue 4.
Electrical equipment embodiment:
Electrical equipment can be the conventional electronic devices such as battery, charger, charger, electric machine controller, electrical equipment packet
The connector 1 for including shell and above-described embodiment, when connector 1 connects, connector 1 extend out to shell other places peace out of shell
Dress so that sealing ring 14 and inner walls are interference fitted, and position ring wall 13 and stretches out in outside connection shell.
Except of course that outside the connector of above-described embodiment the second sealing ring can also be provided in the inner end of connection shell
Mounting groove, the second sealing ring mounting groove are located at the periphery of the inner end of row's needle, and are provided with sealing ring in the second sealing ring mounting groove,
The connector may be mounted on the outer wall of shell, be interference fitted the outer wall of sealing ring and shell.
Electric vehicle embodiment:
Electric vehicle includes the electrical equipment such as above scheme.
Therefore by being provided with circuit board in connector, after the row's needle and welding circuit board of connector, work as row
When needle is connect with external communication, signal processing can be carried out at the first time in circuit board, and be converted to corresponding signal and be transferred to
Late-class circuit, while circuit board is directly set in connector case body, optimization topology layout improves space utilization rate, and encapsulating
Glue is filled in holding tank, and casting glue is wrapped in outside circuit board, the inner end for arranging needle and welding hole, even if row's needle and internal temperature exist
Temperature difference, is also able to suppress the formation of condensation under the package of casting glue, and casting glue risen between each terminal of row's needle every
Effect absolutely, also prevents the appearance of short-circuit conditions, to effectively improve the stability of connector, electrical equipment and electric vehicle
Energy.
Claims (10)
1. connector, including connection shell and row's needle, row's needle pass through the connection shell, the connection shell is in inner end
It is provided with holding tank, the outer end of row's needle is located at the outboard end of the connection shell, and the inner end of row's needle is located at the appearance
It receives in slot；
It is characterized by:
The connector further includes circuit board and casting glue, and the circuit board is provided with welding hole, and the circuit board is arranged described
In holding tank, the inner end of row's needle passes through the welding hole and welds with the welding hole, and the casting glue is filled in the receiving
In slot, the casting glue is wrapped in outside the circuit board, the inner end of row's needle and the welding hole.
2. connector according to claim 1, it is characterised in that:
The connection shell is provided with positioning column in the holding tank, and the circuit board is provided with location hole, the positioning column
It is matched with the location hole.
3. connector according to claim 2, it is characterised in that:
The connection shell is additionally provided with rest pad in the holding tank, and the rest pad and the circuit board are adjacent, described
There is gap between circuit board and the bottom wall of the holding tank.
4. connector according to claim 1, it is characterised in that:
The casting glue uses AB glue, epoxide-resin glue, silicon rubber or polyurethane adhesive.
5. connector according to claim 1, it is characterised in that:
The outboard end of the connection shell is provided with positioning ring wall, and locating slot is provided in the positioning ring wall, row's needle
Outer end is located in the locating slot.
6. connector according to any one of claims 1 to 5, it is characterised in that:
The outboard end of the connection shell is provided with the first sealing ring mounting groove, and first sealing ring mounting groove is located at the row
The periphery of the outer end of needle.
7. connector according to any one of claims 1 to 5, it is characterised in that:
The inner end of the connection shell is provided with the second sealing ring mounting groove, and second sealing ring mounting groove is located at the row
The periphery of the inner end of needle.
8. the manufacturing method of connector, which is characterized in that the connector is the described in any item companies of the claims 1 to 7
Device is connect, the manufacturing method includes:
The circuit board is arranged in the holding tank, the inner end of row's needle passes through the welding hole；
The inner end of row's needle and the welding hole are welded；
Fill the casting glue in the holding tank, make the casting glue be wrapped in the circuit board, row's needle inner end and
Outside the welding hole；
Solidify the casting glue.
9. electrical equipment, which is characterized in that including such as above-mentioned connector as described in any one of claim 1 to 7.
10. electric vehicle, which is characterized in that including such as above-mentioned electrical equipment as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910647872.XA CN110364863A (en) | 2019-07-17 | 2019-07-17 | Connector, the manufacturing method of connector, electrical equipment and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910647872.XA CN110364863A (en) | 2019-07-17 | 2019-07-17 | Connector, the manufacturing method of connector, electrical equipment and electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110364863A true CN110364863A (en) | 2019-10-22 |
Family
ID=68220006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910647872.XA Pending CN110364863A (en) | 2019-07-17 | 2019-07-17 | Connector, the manufacturing method of connector, electrical equipment and electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110364863A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113178725A (en) * | 2021-04-30 | 2021-07-27 | 河南天海电器有限公司 | Mixed plate end connector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204424577U (en) * | 2015-03-26 | 2015-06-24 | 上海莫仕连接器有限公司 | Electric connector |
| CN205376932U (en) * | 2016-01-25 | 2016-07-06 | 北京泰派斯特科技发展有限公司 | A filtering connector |
| CN107069346A (en) * | 2017-03-22 | 2017-08-18 | 山东龙立电子有限公司 | High current super pressure-resistant filter connector and screening technique |
| CN207638078U (en) * | 2017-12-26 | 2018-07-20 | 徐州帝意电子有限公司 | The waterproof of electric machine controller arranges needle connector |
| CN109616825A (en) * | 2018-11-19 | 2019-04-12 | 中国人民解放军海军工程大学 | Watertight connector and its manufacturing method |
| CN210350205U (en) * | 2019-07-17 | 2020-04-17 | 珠海英搏尔电气股份有限公司 | Connector, electrical equipment and electric motor car |
-
2019
- 2019-07-17 CN CN201910647872.XA patent/CN110364863A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204424577U (en) * | 2015-03-26 | 2015-06-24 | 上海莫仕连接器有限公司 | Electric connector |
| CN205376932U (en) * | 2016-01-25 | 2016-07-06 | 北京泰派斯特科技发展有限公司 | A filtering connector |
| CN107069346A (en) * | 2017-03-22 | 2017-08-18 | 山东龙立电子有限公司 | High current super pressure-resistant filter connector and screening technique |
| CN207638078U (en) * | 2017-12-26 | 2018-07-20 | 徐州帝意电子有限公司 | The waterproof of electric machine controller arranges needle connector |
| CN109616825A (en) * | 2018-11-19 | 2019-04-12 | 中国人民解放军海军工程大学 | Watertight connector and its manufacturing method |
| CN210350205U (en) * | 2019-07-17 | 2020-04-17 | 珠海英搏尔电气股份有限公司 | Connector, electrical equipment and electric motor car |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113178725A (en) * | 2021-04-30 | 2021-07-27 | 河南天海电器有限公司 | Mixed plate end connector |
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