CN100380745C - Failsafe connecting key and connector using said connecting key - Google Patents
Failsafe connecting key and connector using said connecting key Download PDFInfo
- Publication number
- CN100380745C CN100380745C CNB2004100446220A CN200410044622A CN100380745C CN 100380745 C CN100380745 C CN 100380745C CN B2004100446220 A CNB2004100446220 A CN B2004100446220A CN 200410044622 A CN200410044622 A CN 200410044622A CN 100380745 C CN100380745 C CN 100380745C
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- China
- Prior art keywords
- connector
- misconnection
- key
- collets
- metal shell
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- 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.)
- Expired - Fee Related
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Abstract
The present invention provides a misconnection preventing key which comprises a block body which is in an L shape basically and is made of hard metal, wherein the block body comprises a short arm and a long arm which intersects with the short arm on the square. The approximate central part of the surface of the long arm is provided with a separation preventing bulge which is integrally formed. A plurality of misconnection preventing keys with the structures can be used in a connector. The connector comprises an insulating block with a plurality of contact pieces and a metal casing; the metal casing can partially cover the insulating block on the side surfaces of the contact parts of the contact pieces. A plurality of misconnection preventing keys can be inserted in a slot in a preset position formed between the insulating block and the metal casing through the long arms until the separation preventing bulge is assembled in a separation preventing concave part or a separation preventing notch formed in the slot; thus, the short arms of the misconnection preventing keys extend outwards out of the slot. The connector can be prevented from being connected to a wrong connector or an improper connector, and the wrong connector or the improper connector does not have an incision corresponding to the short arms extending outwards of the misconnection preventing keys.
Description
Technical field
The present invention relates to a kind of connector that has a plurality of contacts and use a plurality of anti-misconnection keys, be used to prevent that connector is connected to inappropriate matching connector.
Background technology
Up to now, carry out a lot of trials and prevented the connector misconnection.A kind of method is that to make the cross section of front end of the metal shell of connector be trapezoidal, replaces rectangle, thereby prevents that connector is connected on the matching connector upside down.For connector can only be connected on the predetermined matching connector, in another approach, connector is provided with a plastics U-shaped key in the predetermined end that is assemblied in the connector metal housing, thereby can be by determining whether matching connector has the otch that holds the U-shaped key in the pre-position, selects the matching connector of being scheduled to.
Yet when when such plastics U-shaped key applies of short duration and stronger active force, it may fracture; When matching connector when connector breaks away from, described U-shaped key also may change the position, and then loses the effect of its anti-misconnection.This U-shaped key is made of plastics and does not have the device that the U-shaped key is fixed on the precalculated position, and this all can cause producing above-mentioned shortcoming.
Summary of the invention
The purpose of this invention is to provide a kind of connector that uses a plurality of anti-misconnection keys, this connector is formed with a plurality of grooves that insert for a plurality of anti-misconnection keys, make the part of anti-misconnection key stretch out, and then preventing that connector is connected on such matching connector, described matching connector does not have and is used for holding the stretch out corresponding otch of part of this anti-misconnection key.
In order to realize this purpose, in the middle of the connector that has used a plurality of anti-misconnection keys, each anti-misconnection key is included as block L shaped and that made by hard metal, this block comprise galianconism and with galianconism intersect at a right angle long-armed, and the center on this long-armed surface has an integrally formed anti-detachment projection; Connector according to the present invention comprises collets and a metal shell with a plurality of contacts, and this metal shell wherein is provided with the contact portion of described contact at local these collets that cover in the place, end of these collets at the place, end of these collets; Described connector also comprises the described end that is formed on collets and a plurality of grooves of the pre-position between the described metal shell, and be respectively formed at anti-disengaging device in described a plurality of groove, make that working as the described long-armed of described anti-misconnection key is inserted in the described groove, anti-detachment projection until described anti-misconnection key is assemblied in respectively in the described anti-disengaging device, and when the described galianconism of described anti-misconnection key stretches out from described groove respectively, thereby prevent that described connector is connected on such connector, described such connector does not have the otch corresponding to the described galianconism that stretches out of described anti-misconnection key.
Employed here " being formed on the described end of collets and a plurality of grooves between the described metal shell " this statement should be understood as that and mean, described groove can be formed on the metal shell of connector and in the collets any one or all in the middle of.
Each groove is formed with a recess as anti-disengaging device therein, and the anti-detachment projection of wherein said anti-misconnection key is assembled in the middle of this recess, and then keeps described anti-misconnection key reliably.Because collets or metal shell have elasticity, the anti-misconnection bond energy is inserted in the middle of the groove of connector enough respectively at an easy rate.
In the middle of a preferred embodiment of the present invention, this anti-disengaging device forms breach, so that in the outer surface upper shed of metal shell.Owing to have this structure, when the anti-misconnection key is broken away from the middle of the groove of connector, can inwardly promote to be exposed to the anti-detachment projection in the opening of this anti-disengaging device, make anti-detachment projection in the middle of anti-detachment breach, break away from engagement, and then make the anti-misconnection key in the middle of the groove of connector, easily to break away from.
The present invention has aforesaid feature, and can bring following significant function and effect.
(1) compared with prior art, be assemblied in the connector in more reliable mode according to anti-misconnection bond energy of the present invention is enough, and can realize the effect of anti-misconnection in reliable mode.
(2) according to the present invention, the anti-misconnection bond energy enough easily breaks away from from connector.Therefore, by optionally the anti-misconnection key being inserted in the selected groove of connector, can realize difference layout corresponding to a plurality of anti-misconnection keys of a plurality of connectors.
(3) because the metal shell of connector has elasticity, the anti-misconnection bond energy is inserted in the groove of connector enough easily, makes the anti-detachment projection of anti-misconnection key can be assemblied in reliably in the anti-disengaging device according to connector of the present invention.
(4) by the number and the position of the groove selecting in connector, to have formed, can optionally make up connector and matching connector thereof.
Description of drawings
By below in conjunction with the detailed description of accompanying drawing, will be more fully understood the present invention to specification and claim.
Fig. 1 is the perspective view according to anti-misconnection key of the present invention; And
Fig. 2 shows a kind of perspective view that uses the connector of anti-misconnection key, and this anti-misconnection key remains in the middle of the collets and the groove between the metal shell that are formed at this connector.
Embodiment
The explanation of Fig. 1 example is according to the perspective view of anti-misconnection key 1 of the present invention.Anti-misconnection key 1 is made by for example hard metal such as steel, stainless steel, and comprises L shaped block 4, and wherein block 4 comprises long-armed 3 and galianconism 2, and this long-armed 3 intersects at a right angle with galianconism 2, and is formed with projection 5 at the middle part on a long-armed surface; This projection 5 is integrally formed with long-armed 3, is used for preventing that this anti-misconnection key breaks away from from the connector that uses this anti-misconnection key.
Fig. 2 shows a connector, is inserted with two according to anti-misconnection key 1 of the present invention in this connector.This connector comprises a plurality of contacts 6, is used for keeping therein the collets 7 and the metal shell 8 of these contacts 6, and this metal shell 8 is local these collets 7 that cover on the side that faces a matching connector (not shown).In the embodiment shown, be provided with four grooves 9, these four grooves 9 are formed between the end and metal shell 8 of collets 7 four pre-positions.As previously mentioned, these grooves can be formed on the metal shell of connector and in the collets any one or all in the middle of.In addition, each groove 9 position therebetween is formed with an anti-detachment breach 10, and this anti-detachment breach 10 runs through metal shell 8, is used to hold the anti-detachment projection 5 of anti-misconnection key 1, breaks away from from connector to prevent this anti-misconnection key 1.
Owing to have this structure, this anti-misconnection key is inserted in the middle of the groove 9, so that its anti-detachment projection 5 is assemblied in the middle of the anti-detachment breach 10 of metal shell 8, and then anti-misconnection key 1 is firmly remained in the middle of the collets 7 and the groove 9 between the metal shell 8 of connector.
As mentioned above, anti-detachment breach 10 is formed in the middle of each groove 9 of metal shell 8.Although anti-detachment breach 10 is that clearly, these breach can form the recess that inwardly and not runs through metal shell 8 on the metal shell 8 as the breach that runs through metal shell 8 as shown in the figure.Under the situation of being arranged to breach 10, when anti-misconnection key 1 need be when connector breaks away from, can inwardly promote to be exposed to anti-detachment breach 10 central anti-detachment projections 5 and make collets 7 distortion, make anti-detachment projection 5 from anti-detachment breach 10, break away from engagement, and then make the anti-misconnection key break away from from connector.Reference numeral 11 is represented the fixture of connector.
As shown in embodiment, in connector, be provided with four grooves 9, for example be arranged in the middle of the collets 7 of connector upside; And for example three anti-misconnection keys can be inserted in the middle of three grooves 9 selecting from four grooves 9, the feasible arrangement that has four kinds of anti-misconnection keys 1.According to each arrangement in these four kinds of anti-misconnection key 1 arrangements, can determine on the corresponding sides of a matching connector (not shown) position of the otch that will be formed, to hold from groove 9 outward extending galianconism 2.Connector can be prevented from being connected to wrong or inappropriate matching connector on, the galianconism 2 of the anti-misconnection key 1 that the otch of this matching connector is central with being inserted in groove 9 is not corresponding.In this way, can utilize the selectivity of the anti-misconnection key in the groove 9 of corresponding connectors to arrange, select the connection between connector and the matching connector suitably.
Although the present invention is described and illustrates with reference to its preferred embodiment, be appreciated that those skilled in the art can carry out various aforesaid and other variations under the situation that does not depart from the spirit and scope of the invention.
Claims (2)
1. connector that has used a plurality of anti-misconnection keys, wherein each anti-misconnection key is included as block L shaped and that made by hard metal, described block comprise galianconism and with galianconism intersect at a right angle long-armed, and the center on described long-armed surface have one with long-armed integrally formed anti-detachment projection; Described connector comprises collets and a metal shell with a plurality of contacts, and described metal shell wherein is placed with the contact portion of described contact at the described collets of the local covering in the place, end of described collets at the place, end of described collets; Described connector also comprises the described end that is formed on collets and a plurality of grooves of the pre-position between the described metal shell, and be respectively formed at anti-disengaging device in described a plurality of groove, make that working as the described long-armed of described anti-misconnection key is inserted in the described groove, anti-detachment projection until described anti-misconnection key is assemblied in respectively in the described anti-disengaging device, and when the described galianconism of described anti-misconnection key stretches out from described groove respectively, can prevent that described connector is connected on such connector, described such connector does not have the otch corresponding to the described galianconism that stretches out of described anti-misconnection key.
2. connector as claimed in claim 1, wherein said anti-disengaging device is in the outer surface upper shed of described metal shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100446220A CN100380745C (en) | 2004-05-19 | 2004-05-19 | Failsafe connecting key and connector using said connecting key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100446220A CN100380745C (en) | 2004-05-19 | 2004-05-19 | Failsafe connecting key and connector using said connecting key |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1700527A CN1700527A (en) | 2005-11-23 |
| CN100380745C true CN100380745C (en) | 2008-04-09 |
Family
ID=35476449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100446220A Expired - Fee Related CN100380745C (en) | 2004-05-19 | 2004-05-19 | Failsafe connecting key and connector using said connecting key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100380745C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA3233462A1 (en) | 2018-10-26 | 2020-04-30 | Graco Minnesota Inc. | Fluid cartridge for a plural component sprayer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4773881A (en) * | 1987-05-21 | 1988-09-27 | Amp Incorporated | Keying system for connector assemblies |
| US5066250A (en) * | 1990-12-21 | 1991-11-19 | Itt Corporation | Polarizing key permitting connector displacement |
| CN2372913Y (en) * | 1998-05-06 | 2000-04-12 | 宝熊渔具股份有限公司 | Counting device for fishline of line winding apparatus |
| US6095870A (en) * | 1998-09-09 | 2000-08-01 | Lee; Shou An | Fault preventing structure for engagement of a terminal seat |
| JP2001332350A (en) * | 2000-05-25 | 2001-11-30 | Oki Electric Ind Co Ltd | Connector |
-
2004
- 2004-05-19 CN CNB2004100446220A patent/CN100380745C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4773881A (en) * | 1987-05-21 | 1988-09-27 | Amp Incorporated | Keying system for connector assemblies |
| US5066250A (en) * | 1990-12-21 | 1991-11-19 | Itt Corporation | Polarizing key permitting connector displacement |
| CN2372913Y (en) * | 1998-05-06 | 2000-04-12 | 宝熊渔具股份有限公司 | Counting device for fishline of line winding apparatus |
| US6095870A (en) * | 1998-09-09 | 2000-08-01 | Lee; Shou An | Fault preventing structure for engagement of a terminal seat |
| JP2001332350A (en) * | 2000-05-25 | 2001-11-30 | Oki Electric Ind Co Ltd | Connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1700527A (en) | 2005-11-23 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CI01 | Correction of invention patent gazette |
Correction item: First inventor Correct: Yamada Akio False: Ishizuka Nobuya Number: 47 Volume: 21 |
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| CI02 | Correction of invention patent application |
Correction item: First inventor Correct: Yamada Akio False: Ishizuka Nobuya Number: 47 Page: The title page Volume: 21 |
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| COR | Change of bibliographic data |
Free format text: CORRECT: THE FIRST INVENTOR; FROM: ZHAONAN MORIYAMA TO: ZHAONAN YAMADA |
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| ERR | Gazette correction |
Free format text: CORRECT: THE FIRST INVENTOR; FROM: ZHAONAN MORIYAMA TO: ZHAONAN YAMADA |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080409 Termination date: 20100519 |