CN219978562U - Sleeve protection structure and connector using same - Google Patents
Sleeve protection structure and connector using same Download PDFInfo
- Publication number
- CN219978562U CN219978562U CN202320555851.7U CN202320555851U CN219978562U CN 219978562 U CN219978562 U CN 219978562U CN 202320555851 U CN202320555851 U CN 202320555851U CN 219978562 U CN219978562 U CN 219978562U
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- Prior art keywords
- sleeve
- metal sleeve
- ceramic
- metal
- connector
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- 239000002184 metal Substances 0.000 claims abstract description 104
- 239000000919 ceramic Substances 0.000 claims abstract description 71
- 230000004323 axial length Effects 0.000 claims abstract description 7
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 230000004308 accommodation Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 230000013011 mating Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Connector Housings Or Holding Contact Members (AREA)
Abstract
The utility model relates to a sleeve protection structure and a connector using the sleeve protection structure, wherein the sleeve protection structure comprises a shell component, a ceramic sleeve and a metal sleeve, wherein the ceramic sleeve and the metal sleeve are installed in corresponding containing holes of the shell component, the ceramic sleeve is sleeved in the metal sleeve, one end of the metal sleeve is provided with a metal sleeve hole for inserting a contact pin, a chamfer is arranged on the metal sleeve hole, the metal sleeve hole is also provided with an axially extending matching section, the matching section is provided with an axial length capable of limiting the deflection amount when the contact pin is inserted, a rounding angle is arranged at the joint position of the matching section and the chamfer, and a gap for the metal sleeve to move in the containing holes is reserved between the metal sleeve and the shell component. The utility model provides a sleeve protecting structure, wherein a metal sleeve is sleeved outside a ceramic sleeve, and a contact pin is guided and corrected step by the metal sleeve which is not easy to damage, so that the damage of an orifice of the ceramic sleeve caused by transitional deflection when the contact pin enters the ceramic sleeve is avoided.
Description
Technical Field
The utility model belongs to the technical field of connectors, and particularly relates to a sleeve protection structure and a connector using the sleeve protection structure.
Background
In the prior art, the ceramic sleeve inside the connector is used for protecting the ceramic pins and ensuring the coaxiality of the butt joint of the ceramic pins, improving the signal transmission quality of the optical fiber connector and reducing the contact loss of the contact element, and the ceramic sleeve packaging structure adopts two upper and lower shells 02 to package the ceramic sleeve inside the shells, as shown in fig. 1, the ceramic sleeve 03 is packaged inside the upper shell 01 and the lower shell 02 after being buckled, and the ceramic sleeve 03 can not be ensured to enter the ceramic sleeve 03 in parallel during the butt joint, so that the ceramic sleeve 03 still needs a certain movable space after being filled into the containing holes inside the upper and lower shells. However, when the pin 04 is inserted obliquely, the ceramic sleeve 03 has a thin wall thickness, and a gap exists between the ceramic sleeve 03 and the upper/lower housing, so that the opening of the ceramic sleeve is easily damaged when the pin enters the ceramic sleeve.
Disclosure of Invention
In order to solve the technical problem that a ceramic sleeve is easy to damage in the prior art, the utility model provides a sleeve protection structure and a connector using the sleeve protection structure.
The utility model aims at solving the technical problems by adopting the following technical scheme. The utility model provides a sleeve protection structure, which comprises a shell component, and a ceramic sleeve and a metal sleeve which are arranged in corresponding containing holes of the shell component, wherein the ceramic sleeve is sleeved in the metal sleeve, one end of the metal sleeve is provided with a metal sleeve hole for inserting a contact pin, the metal sleeve hole is provided with a chamfer angle, the metal sleeve hole is also provided with an axially extending matching section, the matching section is provided with an axial length capable of limiting deflection of the contact pin during insertion, a chamfer angle is arranged at the joint position of the matching section and the chamfer angle, and a gap for the metal sleeve to move in the containing holes is reserved between the metal sleeve and the shell component.
Further, the gap between the metal sleeve and the housing assembly includes a first radial gap, and a second radial gap is left between the metal sleeve and the ceramic sleeve, the second radial gap being smaller than the first radial gap.
Further, one end of the metal sleeve is turned inwards or extends inwards to form the orifice of the metal sleeve, so that a step is naturally formed inside one end of the metal sleeve, and the step is used for axially limiting the ceramic sleeve.
Further, the housing assembly includes an upper housing and a lower housing that are snap-fit to each other.
The utility model also provides a connector using the sleeve protection structure, which comprises a connector shell and the sleeve protection structure arranged in the connector shell, wherein the sleeve protection structure comprises a shell component, a ceramic sleeve and a metal sleeve, wherein the ceramic sleeve and the metal sleeve are arranged in corresponding containing holes of the shell component, the ceramic sleeve is sleeved in the metal sleeve, one end of the metal sleeve is provided with a metal sleeve hole for inserting a contact pin, the metal sleeve hole is provided with a chamfer angle, the metal sleeve hole is further provided with an axially extending matching section, the matching section is provided with an axial length capable of limiting the deflection amount during the contact pin insertion, a chamfer angle is arranged at the joint position of the matching section and the chamfer angle, and a gap for the metal sleeve to move in the containing holes is reserved between the metal sleeve and the shell component.
Further, the gap between the metal sleeve and the housing assembly includes a first radial gap, and a second radial gap is left between the metal sleeve and the ceramic sleeve, the second radial gap being smaller than the first radial gap.
Further, one end of the metal sleeve is turned inwards or extends inwards to form the orifice of the metal sleeve, so that a step is naturally formed inside one end of the metal sleeve, and the step is used for axially limiting the ceramic sleeve.
Further, the housing assembly includes an upper housing and a lower housing that are snap-fit to each other.
Further, the connector using the sleeve protection structure is a plug or a socket.
By means of the technical scheme, the utility model has the beneficial effects that:
the utility model provides a sleeve protecting structure, wherein a metal sleeve is sleeved outside a ceramic sleeve, chamfering, rounding and matching sections are sequentially designed at the opening of the metal sleeve from outside to inside, and the metal sleeve which is not easy to damage is used for guiding a contact pin step by step and correcting for a plurality of times, so that the damage to the opening of the ceramic sleeve caused by transitional deflection when the contact pin enters the ceramic sleeve is avoided.
The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model, as well as the preferred embodiments thereof, together with the following detailed description of the utility model given in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic cross-sectional view of a ceramic ferrule package structure in accordance with the prior art.
Fig. 2 is a schematic cross-sectional view of a sleeve protection structure according to the present utility model.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4a to 4c are schematic diagrams of the guiding sequence during the insertion of the cannula protection structure and the contact pin.
Fig. 5 is a schematic view showing the floating of the metal sleeve and the ceramic sleeve in the accommodating hole in the present utility model.
Reference numerals illustrate:
1-lower shell
2-ceramic sleeve
3-metal sleeve
4-upper shell
5-receiving hole
6-pin
7-first radial gap
8-second radial gap
31-metal sleeve orifice
311-chamfer angle
312-mating segment
313-filleting
32-step
Detailed Description
The technical scheme of the utility model is further described in detail below with reference to the attached drawings and the preferred embodiments.
In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
An embodiment of a cannula protection structure:
as shown in fig. 2 to 5, the sleeve protecting structure comprises a lower shell 1, a ceramic sleeve 2, a metal sleeve 3 and an upper shell 4, wherein the lower shell and the upper shell are mutually buckled to form a shell assembly, a containing hole 5 for containing the metal sleeve and the ceramic sleeve is formed in the shell assembly, the metal sleeve and the ceramic sleeve are limited by the shell assembly through a conventional step structure, the number of the containing holes is one or more, the shell assembly is assembled and limited in a connector, the ceramic sleeve 2 is sleeved in the metal sleeve 3, a metal sleeve orifice 31 for inserting a pin 6 is formed at one end of the metal sleeve 3, a chamfer 311 is formed in the metal sleeve orifice 31, a small gap is reserved between the position of the chamfer 311 and a socket, the pin is subjected to primary correction, and the transition deflection when the pin enters the ceramic sleeve is avoided, wherein the small gap is smaller than the gap between the shell assembly and the pin in the prior art. The metal sleeve hole opening is further provided with a matching section 312, the matching section 312 extends along the inserting and pulling direction (i.e. the axial direction) of the contact pin, the matching section 312 has a certain axial length, as shown in fig. 3, the axial length is L, the deflection amount of the contact pin 6 during insertion can be effectively limited (as shown in fig. 4 b), the deflection angle of the contact pin when entering the ceramic sleeve is controlled, the deflection of the contact pin is corrected again after the contact pin enters the metal sleeve, and when the contact pin 6 contacts the ceramic sleeve 2, the contact pin 6 is corrected by the metal sleeve, so that the phenomenon that the hole opening of the ceramic sleeve is damaged when the contact pin is obliquely inserted into the ceramic sleeve is avoided.
In this embodiment, the chamfer 311 of the metal sleeve hole 31 should have a larger angle, so that the contact pin 6 can more easily enter the metal sleeve 3 under the condition of deflection, and the position where the mating section 312 is engaged with the chamfer 311 is rounded 313, so as to facilitate the contact pin to more smoothly enter the ceramic sleeve.
A gap for the metal sleeve to move in the accommodating hole is reserved between the metal sleeve and the shell assembly, the gap reserved between the metal sleeve and the shell assembly comprises a first radial gap 7 and an axial gap reserved between the shell assembly and the metal sleeve, the first radial gap is a distance between the metal sleeve 3 and the inner wall of the accommodating hole 5 in the radial direction, and the arrangement of the gap can ensure the floating quantity of the metal sleeve in the accommodating hole. A second radial gap 8 is reserved between the metal sleeve 3 and the ceramic sleeve 2; in the radial direction, the second radial clearance is smaller than the first radial clearance, when the contact pin deflects a certain amount, the metal sleeve and the ceramic sleeve float together in the accommodating hole, so that the contact pin can enter the metal sleeve and then enter the ceramic sleeve, and the ceramic sleeve is effectively protected in the inserting process.
In combination with fig. 3, one end of the metal sleeve 3 is turned inwards or extends inwards to form the metal sleeve orifice 31, so that a step 32 is naturally formed inside one end of the metal sleeve, the step 32 is used for axially limiting the ceramic sleeve 2, and in addition, the metal sleeve orifice formed by extending inwards can just reduce the gap between the metal sleeve orifice and the contact pin, thereby facilitating the rapid correction in the contact pin inserting process and reducing the deflection amount in the contact pin inserting process.
The principle of the utility model for guiding the contact pin to realize the protection of the ceramic sleeve is as follows: as shown in fig. 4a, when the pin 6 starts to be inserted and the pin 6 is in a skew state, a small gap is left between the section where the chamfer 311 of the metal sleeve orifice is located and the pin 6 to perform primary correction on the pin 6, so as to avoid transition skew when the pin 6 enters the ceramic sleeve 2, the chamfer at the outermost end of the metal sleeve orifice guides the pin, and the chamfer 313 also continuously guides the pin in the insertion process; as shown in fig. 4b, when the pin 6 is inserted into the mating segment 312, the mating segment 312 is continuously mated with the pin 6, so as to limit the deflection amount of the pin 6 when being inserted; as shown in fig. 4c, when the pin 6 contacts the ceramic sleeve 2, the pin is already corrected by the metal sleeve to be unable to directly contact the aperture of the ceramic sleeve at a larger angle, so as to avoid damage to the aperture of the ceramic sleeve caused when the pin 6 is obliquely inserted into the ceramic sleeve 2. As shown in FIG. 5, because a relatively large first radial gap is reserved between the metal sleeve 3 and the inner wall of the accommodating hole, and a relatively small second radial gap is reserved between the ceramic sleeve 2 and the inner wall of the metal sleeve 3, the contact pin drives the ceramic sleeve and the metal sleeve to float when being obliquely inserted, so that the contact pin can enter the metal sleeve and then enter the ceramic sleeve, the setting of the second radial gap can further realize small-amplitude floating of the ceramic sleeve relative to the metal sleeve, and finally the ceramic sleeve is effectively protected in the contact pin inserting process.
An embodiment of a connector using a ferrule protection structure:
the connector using the sleeve protection structure comprises a connector housing and a sleeve protection structure arranged in the connector housing, wherein the sleeve protection structure is the sleeve protection structure in the embodiment of the sleeve protection structure, and the connector using the sleeve protection structure can be a plug or a socket and is not described herein. For example, when the sleeve protection structure is arranged in the socket, the contact pin can be a contact element in the socket, so that the ceramic sleeve is protected in the process of installing the contact element in the socket; the sleeve protection structure may be set in the socket, and the contact pin belongs to the contact part of the socket end, so as to realize the protection of the ceramic sleeve when the socket connectors are mutually inserted.
The foregoing is merely a preferred embodiment of the present utility model, and is not described in detail in the prior art; any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model, without departing from the technical scope of the present utility model, will still fall within the scope of the present utility model.
Claims (9)
1. The utility model provides a sleeve pipe protection architecture, includes casing subassembly and installs ceramic sleeve pipe and the metal sheath in casing subassembly's corresponding accommodation hole, its characterized in that: the ceramic sleeve is sleeved in the metal sleeve, one end of the metal sleeve is provided with a metal sleeve orifice for inserting the contact pin, the metal sleeve orifice is provided with a chamfer, the metal sleeve orifice is also provided with an axially extending matching section, the matching section is provided with an axial length capable of limiting the deflection of the contact pin during insertion, the position where the matching section is connected with the chamfer is provided with a chamfer, and a gap for the metal sleeve to move in the accommodating hole is reserved between the metal sleeve and the shell component.
2. A cannula protection structure according to claim 1, wherein: the gap left between the metal sleeve and the housing assembly includes a first radial gap, and a second radial gap is left between the metal sleeve and the ceramic sleeve, the second radial gap being smaller than the first radial gap.
3. A cannula protection structure according to claim 1, wherein: one end of the metal sleeve is turned inwards or extends inwards to form the orifice of the metal sleeve, and then a step is naturally formed inside one end of the metal sleeve and is used for axially limiting the ceramic sleeve.
4. A cannula protection structure according to claim 1, wherein: the shell assembly comprises an upper shell and a lower shell which are buckled with each other.
5. The connector using the sleeve protection structure comprises a connector shell and a sleeve protection structure installed in the connector shell, wherein the sleeve protection structure comprises a shell component and a ceramic sleeve and a metal sleeve installed in a corresponding containing hole of the shell component, and the connector is characterized in that: the ceramic sleeve is sleeved in the metal sleeve, one end of the metal sleeve is provided with a metal sleeve orifice for inserting the contact pin, the metal sleeve orifice is provided with a chamfer, the metal sleeve orifice is also provided with an axially extending matching section, the matching section is provided with an axial length capable of limiting the deflection of the contact pin during insertion, the position where the matching section is connected with the chamfer is provided with a chamfer, and a gap for the metal sleeve to move in the accommodating hole is reserved between the metal sleeve and the shell component.
6. The connector using the ferrule protecting structure according to claim 5, wherein: the gap left between the metal sleeve and the housing assembly includes a first radial gap, and a second radial gap is left between the metal sleeve and the ceramic sleeve, the second radial gap being smaller than the first radial gap.
7. The connector using the ferrule protecting structure according to claim 5, wherein: one end of the metal sleeve is turned inwards or extends inwards to form the orifice of the metal sleeve, and then a step is naturally formed inside one end of the metal sleeve and is used for axially limiting the ceramic sleeve.
8. The connector using the ferrule protecting structure according to claim 5, wherein: the shell assembly comprises an upper shell and a lower shell which are buckled with each other.
9. The connector using the ferrule protecting structure according to claim 5, wherein: the connector is a plug or a socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320555851.7U CN219978562U8 (en) | 2023-03-20 | 2023-03-20 | Sleeve protection structure and connector using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320555851.7U CN219978562U8 (en) | 2023-03-20 | 2023-03-20 | Sleeve protection structure and connector using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN219978562U true CN219978562U (en) | 2023-11-07 |
| CN219978562U8 CN219978562U8 (en) | 2024-02-23 |
Family
ID=88587439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320555851.7U Active CN219978562U8 (en) | 2023-03-20 | 2023-03-20 | Sleeve protection structure and connector using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219978562U8 (en) |
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2023
- 2023-03-20 CN CN202320555851.7U patent/CN219978562U8/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN219978562U8 (en) | 2024-02-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CU01 | Correction of utility model | ||
| CU01 | Correction of utility model |
Correction item: (ESM) The same invention has applied for an invention patent on the same day Correct: have Number: 45-01 Page: The title page Volume: 39 Correction item: (ESM) The same invention has applied for an invention patent on the same day Correct: have Number: 45-01 Volume: 39 |