CN111682342B - Connection terminal capable of preventing electrical stress failure - Google Patents
Connection terminal capable of preventing electrical stress failure Download PDFInfo
- Publication number
- CN111682342B CN111682342B CN202010506462.6A CN202010506462A CN111682342B CN 111682342 B CN111682342 B CN 111682342B CN 202010506462 A CN202010506462 A CN 202010506462A CN 111682342 B CN111682342 B CN 111682342B
- Authority
- CN
- China
- Prior art keywords
- metal
- electrical stress
- stress failure
- insulating shell
- connection terminal
- 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.)
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- 239000002184 metal Substances 0.000 claims abstract description 56
- 229910000906 Bronze Inorganic materials 0.000 claims description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 7
- 239000010974 bronze Substances 0.000 claims description 7
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 7
- 229920002302 Nylon 6,6 Polymers 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 12
- 238000003780 insertion Methods 0.000 abstract description 4
- 230000037431 insertion Effects 0.000 abstract description 4
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 abstract 1
- 230000035882 stress Effects 0.000 description 22
- 230000008569 process Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000002955 isolation Methods 0.000 description 4
- 229920002292 Nylon 6 Polymers 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
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
- H01R13/44—Means for preventing access to live contacts
-
- 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
-
- 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
- H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
-
- 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
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention provides a connecting terminal capable of preventing electrical stress failure. And the outer side plates corresponding to the outer side surfaces of the metal pins on the insulating shell are connected to form a complete shell structure to cover the metal parts of the metal pins. And the bottom plate opposite to the insertion direction of the metal contact pin on the insulating shell is provided with an insertion hole corresponding to the top of the metal contact pin. According to the connecting terminal with the failed discharge stress, the insulating shell structure of the terminal of the connecting terminal is designed and improved, so that the electrical stress failure caused by the contact with a wire body, a PCBA electronic component and a staff plug terminal is avoided, the working procedures can be effectively reduced, time and labor are saved, the production efficiency is effectively improved, and the production cost is reduced.
Description
Technical Field
The invention relates to the technical field of wiring terminals, in particular to a wiring terminal capable of preventing electrical stress failure.
Background
The structure of the connecting terminal used in the current market has a contact pin exposed metal part, and a basic external metal and wire body electrified part in the production and use process enables EOS/ESD to release electronic components connected to the PCBA, and the electrical stress exceeds the limit parameters of the electronic components, so that the electronic components are easy to generate electrical stress failure, and the normal use of the PCBA is influenced. PCBA can not work normally, and relevant functions can not be realized, which affects the use experience of users. Moreover, when the plug terminal fingers touch the contact pins to generate electric stress failure, operators generally use high-temperature adhesive paper and an anti-static finger sleeve to wrap the exposed parts of the contact pins of the connection terminals in the production process, so that the production operation process increases procedures, is time-consuming and labor-consuming, affects the efficiency and increases the production cost.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a connecting terminal capable of preventing electrical stress failure, wherein the electrical stress failure caused by the contact with a wire body, a PCBA electronic component and an employee plug terminal is avoided by improving the design of an insulating shell structure of the connecting terminal.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a connecting terminal capable of preventing electrical stress failure comprises an insulating shell and a metal contact pin arranged in the insulating shell. And the outer side plates corresponding to the outer side surfaces of the metal pins on the insulating shell are connected to form a complete shell structure to cover the metal parts of the metal pins. And the bottom plate opposite to the insertion direction of the metal contact pin on the insulating shell is provided with an insertion hole corresponding to the top of the metal contact pin.
According to the anti-electric stress failure connection terminal, the structure of the insulating shell is improved, so that the insulating shell can protect and isolate the metal pin part of the terminal, the problem that objects with potential difference are formed by directly contacting external metal, electronic components and pins of the terminal by hands of staff and the like to form a current channel, the electric stress between the objects is released from high to low instantly, the released electric energy exceeds the bearing capacity of the connection line for contacting the electronic components, the EOS/EDS of the electric components is disabled, and the PCBA cannot normally work is solved, and due to the protection and isolation effect of the insulating shell on the metal pin, in the production process, the operators do not need to use high-temperature gummed paper and an anti-static finger sleeve comprising the exposed part of the terminal pin of the connection terminal, so that the working procedures can be effectively reduced, time and labor are saved, and the production efficiency is effectively improved, the production cost is reduced.
With respect to the above technical solution, further improvements as described below can be made.
In a preferred embodiment, the outer side plate of the insulating housing corresponding to the outer side of the metal pin is provided with a groove structure. The groove structures are uniformly arranged between two adjacent metal contact pins at intervals.
Through setting up groove structure, can keep linking terminal's tension, the atress leads to insulating casing damaged when avoiding the cartridge, plays the positioning action to the cartridge needle file simultaneously, avoids appearing inserting the phenomenon of turning over.
In particular, in a preferred embodiment, the depth of the groove structure is smaller than the thickness of the insulating housing.
This dimensioning of the recess ensures an effective isolation of the metallic parts of the pins.
In particular, in a preferred embodiment, the groove structure is trapezoidal in cross-section.
The groove in the shape enables the die to be processed simply and conveniently.
In particular, in another preferred embodiment, the groove structure is arcuate in cross-section.
The groove in the shape can also ensure that the die is simple and convenient to process.
Further, in a preferred embodiment, the thickness of the insulating shell is 0.4-0.6 times of the thickness of the metal pin.
With insulating casing's thickness setting in above-mentioned within range, can enough ensure that terminal protection insulating casing thickness is unlikely to too thin and leads to damaging in production and use assembly process, can make the metal part of contact pin effectively keep apart again and avoid insulating casing thickness too thick to be unfavorable for whole cartridge.
Specifically, in a preferred embodiment, the metal pins have a thickness of 0.8mm to 1.2 mm.
The metal contact pin within the thickness range can ensure that the whole thickness of the connecting terminal is consistent with that of the existing connecting terminal, thereby ensuring the universality of the connecting terminal.
Further, in a preferred embodiment, a positioning boss is arranged on the inner side surface of the insulating shell at a position corresponding to the metal pin, and the positioning boss can fill a gap between the metal pin and the insulating shell.
Through setting up this kind of boss structure, can further improve whole binding post's structural stability.
Specifically, in a preferred embodiment, the metal pins are made of phosphor bronze.
The phosphor bronze material has good toughness, elasticity, wear resistance and corrosion resistance, so that the phosphor bronze material is particularly suitable for pins in connecting terminals.
Specifically, in a preferred embodiment, the insulating housing is made of PA6 or PA 66.
The insulating shell made of the material has good wear-resistant property.
Compared with the prior art, the invention has the advantages that: through carrying out design improvement to connecting wire terminal insulating casing structure, avoid leading to the electrical stress inefficacy with the contact of the line body, PCBA electronic components, staff plug terminal to can effectively reduce the process, labour saving and time saving, thereby effectively improve production efficiency, reduction in production cost.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:
FIG. 1 schematically illustrates a front view configuration of a terminal for electrical stress failure protection according to an embodiment of the present invention;
fig. 2 schematically shows the internal structure of a battery pack for an electronic thermometer according to an embodiment of the present invention.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
Detailed Description
The invention will be further explained in detail with reference to the figures and the embodiments without thereby limiting the scope of protection of the invention.
Fig. 1 schematically shows a front view structure of a connecting terminal 10 for preventing electrical stress failure according to an embodiment of the present invention. Fig. 2 schematically shows the bottom view structure of the electrical stress failure resistant connecting terminal 10 of the embodiment of the present invention.
As shown in fig. 1 and 2, the terminal 10 for preventing electrical stress failure according to the embodiment of the present invention includes an insulating housing 1 and a metal pin 2 disposed in the insulating housing 1. Wherein, the outer side plate 11 corresponding to the outer side of the metal pin 2 on the insulating shell 1 is connected to form a complete shell structure to cover the metal part of the metal pin 2. The bottom plate 12 of the insulating shell 1 opposite to the plugging direction of the metal pins 2 is provided with plugging holes 13 corresponding to the tops of the metal pins 2.
According to the electric Stress failure prevention connecting terminal provided by the embodiment of the invention, through the improvement of the structure of the insulating shell, the insulating shell can protect and isolate the metal pin part of the terminal, so that the problems that the electric Stress between the metal pin part and the insulating shell is released from high to low instantly, the released electric energy exceeds the bearing capacity of the connecting wire for contacting the electronic component and the electric component EOS/EDS (electric Over Stress/electric Static Discharge) fails and the PCBA (printed Circuit Board Assembly) cannot work normally due to the electric Stress failure prevention and isolation effect of the insulating shell on the metal pin are avoided, therefore, the working procedures can be effectively reduced, time and labor are saved, the production efficiency is effectively improved, and the production cost is reduced.
Further, in the present embodiment, as shown in fig. 1 and fig. 2, the outer side plate 11 of the insulating housing 1 corresponding to the outer side of the metal pin 2 is provided with a groove structure 14. The groove structures 14 are uniformly spaced between two adjacent metal pins 2. Through setting up groove structure, can keep linking terminal's tension, the atress leads to insulating casing damaged when avoiding the cartridge, plays the positioning action to the cartridge needle file simultaneously, avoids appearing inserting the phenomenon of turning over. In addition, the design of groove structure can avoid connecting terminal to receive cartridge mechanical stress and long-time use ageing, leads to one of them or partial contact pin not hard up to transmit other jacks with power in step and lead to insulating casing and terminal body to break away from to effectively stabilize connecting terminal structure. Preferably, in the present embodiment, the depth of the groove structure 14 is smaller than the thickness of the insulating housing 1. This dimensioning of the recess ensures an effective isolation of the metallic parts of the pins. In the present embodiment in particular, the groove structure 14 has a trapezoidal cross section. The groove in the shape enables the die to be processed simply and conveniently, and the attractiveness of the insulating shell can be guaranteed, and manual operation is facilitated. In particular, in another embodiment, not shown, the groove structure 14 is arcuate in cross-section. The groove in the shape can also ensure that the die is simple and convenient to process, and can ensure the attractiveness of the insulating shell and facilitate manual operation.
Specifically, in the present embodiment, as shown in fig. 1, the thickness L1 of the insulating housing is 0.4 to 0.6 times, and more preferably 0.5 times, the thickness L2 of the metal pin. With insulating casing's thickness setting in above-mentioned within range, can enough ensure that terminal protection insulating casing thickness is unlikely to too thin and leads to damaging in production and use assembly process, can make the metal part of contact pin effectively keep apart again and avoid insulating casing thickness too thick to be unfavorable for whole cartridge. Preferably, in the present embodiment, the thickness of the metal pin is 0.8mm to 1.2mm, and particularly preferably 1.0 mm. The metal contact pin within the thickness range can ensure that the whole thickness of the connecting terminal is consistent with that of the existing connecting terminal, thereby ensuring the universality of the connecting terminal.
Further, in this embodiment, a positioning boss is disposed at a position corresponding to the metal pin 2 on the inner side surface of the insulating housing 1, and the positioning boss can fill a gap between the metal pin 2 and the insulating housing 1. Through setting up this kind of boss structure, can further improve whole binding post's structural stability.
Specifically, in the present embodiment, the metal pin is made of phosphor bronze. The phosphor bronze material has good toughness, elasticity, wear resistance and corrosion resistance, so that the phosphor bronze material is particularly suitable for pins in connecting terminals. Preferably, in this embodiment, the insulating housing 1 is made of PA6 (polyamide-6) or PA66 (polyamide-66). The insulating shell made of the nylon material has good wear-resistant property.
According to the embodiments, the connecting terminal with failed discharge stress provided by the invention has the advantages that the insulating shell structure of the connecting terminal is designed and improved, the electrical stress failure caused by the contact with a wire body, a PCBA electronic component and an employee plug terminal is avoided, the working procedures can be effectively reduced, the time and the labor are saved, the production efficiency is effectively improved, and the production cost is reduced.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (8)
1. The connecting terminal is characterized by comprising an insulating shell and a metal contact pin arranged in the insulating shell; wherein,
the outer side plates corresponding to the outer side surfaces of the metal contact pins on the insulating shell are connected to form a complete shell structure to cover the metal parts of the metal contact pins;
inserting holes are formed in the bottom plate, opposite to the inserting direction of the metal contact pins, of the insulating shell, and the positions, corresponding to the tops of the metal contact pins, of the bottom plate are provided with inserting holes;
a groove structure is arranged on an outer side plate, corresponding to the outer side surface of the metal contact pin, on the insulating shell; the groove structures are uniformly arranged between two adjacent metal contact pins at intervals;
the depth of the groove structure is smaller than the thickness of the insulating shell.
2. The electrical stress failure connection terminal as claimed in claim 1, wherein the cross-section of the groove structure is trapezoidal.
3. The electrical stress failure connection terminal as claimed in claim 1, wherein the cross-section of the groove structure is arc-shaped.
4. The electrical stress failure connection terminal as claimed in any one of claims 1 to 3, wherein the thickness of the insulating housing is 0.4 to 0.6 times the thickness of the metal pin.
5. The electrical stress failure connection terminal as claimed in any one of claims 1 to 3, wherein the thickness of the metal pin is 0.8mm to 1.2 mm.
6. The electrical stress failure connection terminal preventing as claimed in any one of claims 1 to 3, wherein a positioning boss is provided on the inner side surface of the insulating housing at a position corresponding to the metal pin, and the positioning boss can fill a gap between the metal pin and the insulating housing.
7. The electrical stress failure connection terminal as claimed in any one of claims 1 to 3, wherein the metal pin is made of phosphor bronze.
8. The electrical stress failure connection terminal of any one of claims 1 to 3, wherein the insulating housing is made of PA6 or PA 66.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010506462.6A CN111682342B (en) | 2020-06-05 | 2020-06-05 | Connection terminal capable of preventing electrical stress failure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010506462.6A CN111682342B (en) | 2020-06-05 | 2020-06-05 | Connection terminal capable of preventing electrical stress failure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111682342A CN111682342A (en) | 2020-09-18 |
| CN111682342B true CN111682342B (en) | 2021-11-23 |
Family
ID=72435001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010506462.6A Active CN111682342B (en) | 2020-06-05 | 2020-06-05 | Connection terminal capable of preventing electrical stress failure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111682342B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2279010Y (en) * | 1996-12-13 | 1998-04-15 | 鸿海精密工业股份有限公司 | Insulation shell for electric connector |
| JP3867739B2 (en) * | 1997-01-29 | 2007-01-10 | 株式会社三洋物産 | Lamp socket connection terminal soldering jig |
| CN205543466U (en) * | 2016-01-27 | 2016-08-31 | 浙江德利接插件有限公司 | Female socket of connector |
| CN206640018U (en) * | 2017-04-22 | 2017-11-14 | 上海芯智电子科技有限公司 | A kind of automobile wire harness connector |
| CN207994161U (en) * | 2018-02-27 | 2018-10-19 | 成都凯天电子股份有限公司 | Connector pin socket protection cover |
| CN209249742U (en) * | 2019-07-09 | 2019-08-13 | 天立电机（宁波）有限公司 | A kind of pcb board connecting terminal |
-
2020
- 2020-06-05 CN CN202010506462.6A patent/CN111682342B/en active Active
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| Publication number | Publication date |
|---|---|
| CN111682342A (en) | 2020-09-18 |
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