CN210576611U - Elastic movable length-variable spring needle conductor with concave structure - Google Patents
Elastic movable length-variable spring needle conductor with concave structure Download PDFInfo
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- CN210576611U CN210576611U CN201921288076.3U CN201921288076U CN210576611U CN 210576611 U CN210576611 U CN 210576611U CN 201921288076 U CN201921288076 U CN 201921288076U CN 210576611 U CN210576611 U CN 210576611U
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Abstract
The utility model relates to an elastic movement variable length spring needle conductor with an inward concave structure, which consists of a telescopic component (1) and a fixed component (2) which are mutually spliced, wherein a spring component (3) is arranged inside the fixed component (2), the telescopic component (1) extends into the fixed component (2) and is abutted against the spring component (3) and can realize axial telescopic movement relative to the fixed component (2) under the action of the spring component (3); enough smooth degree of sliding can still be guaranteed after sliding many times, because do not have the surperficial fish tail destruction that interference or transition assembly technology brought, the smooth degree of flexible component after sliding many times in fixed component still can be unanimous with smooth and easy degree under the initial condition, therefore can effectively guarantee the quality of service and the life of this spring needle conductor, practices thrift cost and resource, does benefit to the environmental protection.
Description
Technical Field
The utility model relates to a connecting device and forming method thereof, concretely relates to flexible activity variable length spring needle conductor of taking indent structure.
Background
In order to achieve signal connection between PCBs of radio frequency communication devices, and at the same time to save space, structures have begun to appear in the prior art that reduce cable connectors, aiming at the trend that the internal connection is more reliable and the internal circuit structure is more concise, the technology of realizing signal connection by adopting the spring pin conductor has appeared in the current industry, different connection modes of the spring needle conductors often have different appearances, but the inner structure of the spring needle conductor is often provided with an inner spring component, two ends of the spring component respectively support the inner end part and the outer end part of the conductor, so that a linear elastic pressure is obtained between the inner end of the conductor and the outer end of the conductor, in the process, the key requirements of the structural design of the spring pin conductor are how to ensure the smoothness of the inner end and the outer end of the conductor when the inner end and the outer end slide relatively and the reliability and the durability of signal connection transmission.
SUMMERY OF THE UTILITY MODEL
To the not enough and defect that exists among the prior art, the utility model provides a take elasticity activity variable length pogo pin conductor of indent structure.
The utility model provides a technical scheme that its technical problem adopted is: an elastic movable length-variable spring needle conductor with a concave structure comprises a telescopic component and a fixed component which are mutually inserted, wherein a spring component is arranged in the fixed component, the telescopic component extends into the fixed component, is abutted against the spring component and can realize axial telescopic motion relative to the fixed component under the action of the spring component; wherein the content of the first and second substances,
the telescopic member comprises a telescopic end, a first telescopic shaft, a first conical connecting part, a second telescopic shaft, a second conical connecting part, a butt end part and a butt end which are sequentially connected from left to right; the telescopic end head is fixedly connected with the first telescopic shaft, the radial dimension of the telescopic end head is larger than that of the first telescopic shaft, the first telescopic shaft is fixedly connected with the second telescopic shaft through the first conical connecting part, the radial dimension of the first telescopic shaft is larger than that of the second telescopic shaft, the second telescopic shaft is fixedly connected with the abutting end part through the second conical connecting part, the radial dimension of the second telescopic shaft is smaller than that of the abutting end part, the abutting end head is fixedly arranged at the right end of the abutting end part, and the radial center of the abutting end head is aligned with the radial center of the spring member;
the fixing component comprises a component shell, a spring accommodating cavity is formed in the component shell, and the spring component is arranged in the spring accommodating cavity;
the method is characterized in that:
the component shell is provided with an annular concave structure which is inwards concave in the radial direction, and the concave structure is formed by external molding after the telescopic component extends into the fixed component and is positioned at a stretching threshold position.
Further, after the telescopic member extends into the fixed member and is located at the stretching threshold position, the concave structure is located at a position, close to the second conical connecting portion, of the right end of the second telescopic shaft in the axial direction.
Further, after the telescopic member extends into the fixing member and is located at the stretching threshold position, the inner diameter surface of the concave structure is located between the second telescopic shaft and the outer diameter of the abutting end portion in the radial direction.
Further, the cross sections of the outer diameter surface and the inner diameter surface of the concave structure are both arc-shaped.
Further, the concave structure is formed at an axially intermediate position of the fixing member.
Further, the first telescopic shaft and the abutting end are equal in radial size, and the first telescopic shaft, the abutting end and the inner wall of the component shell are in clearance fit.
Further, the abutment head is partially located axially inside the spring member after the telescoping member has been extended into the interior of the fixed member and is located at the threshold position of extension.
Further, the inner wall of the member case is provided as a smooth inner wall.
Further, an axial positioning mark is arranged on the first telescopic shaft.
The utility model has the advantages that:
(1) the enough sliding smoothness can be still ensured after the multiple sliding, and the smoothness of the telescopic component after the multiple sliding in the fixed component can still be consistent with the smoothness in the initial state due to the absence of surface scratch damage caused by interference or a transitional assembly process, so that the use quality and the service life of the spring needle conductor can be effectively ensured, the cost and the resource are saved, and the environment is protected;
(2) because the axial position location of the telescopic component in the internal axial motion of the fixed component is realized by adopting the concave structure, and the concave structure is formed after the telescopic component extends into the fixed component, the structural shapes of the telescopic component and the fixed component cannot be influenced during installation, and meanwhile, the risk that the lower telescopic component fails and is separated from the fixed component due to the long-term use of the limiting structure can be effectively avoided due to the stable shape after the forming.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic diagram of a pogo pin conductor employing a step positioning structure in the prior art;
FIG. 2 is an enlarged view of the structure at position A in FIG. 1;
FIG. 3 is a schematic diagram of a prior art pogo pin conductor employing a barb positioning structure;
FIG. 4 is an enlarged view of the structure at position B in FIG. 3;
FIG. 5 is a schematic structural view of an elastically movable length-variable pogo pin conductor with an indent structure according to the present invention;
FIG. 6 is an enlarged view of the structure at position C of FIG. 5;
fig. 7 is a schematic step diagram illustrating a method for forming an elastically movable length-variable pogo pin conductor with an indent structure according to the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
In the prior art, the connection mode of the spring pin conductor is generally divided into two modes, namely a spring pin conductor adopting a step positioning structure and a spring pin conductor adopting an agnail positioning structure;
as shown in fig. 1-2, a technical solution of a pogo pin conductor adopting a step positioning structure in the prior art is provided, in which a telescopic member 1a of the conductor is externally sleeved on a fixed member 2a, a spring accommodating cavity for accommodating a spring member 3a is formed inside the telescopic member 1a and inside the fixed member 2a, the telescopic member 1a is externally sleeved on the fixed member 2a and axially extends and retracts the telescopic member 1a relative to the fixed member 2a under the action of an internal spring member 3a, a fixed positioning step 2a-1 is radially and outwardly protruded on the fixed member 2a, a telescopic positioning step 1a-1 is radially and inwardly protruded on the telescopic member 1a, when the pogo pin conductor is installed, the telescopic member 1a is sleeved on the outer periphery of the fixed member 2a by the fixed positioning step 2a-1 in the axial direction passing over the telescopic positioning step 1a-1, and the limit telescopic motion of the telescopic member 1a relative to the fixed member 2a is realized through the limit action between the fixed positioning step 2a-1 and the telescopic positioning step 1 a-1.
The disadvantages of this connection method are: when the interference fit resistance is overcome and the elastic pin is pressed in rigidly, irreversible plastic deformation damage can be caused between the inner wall of the telescopic member and the inner wall and the outer wall of the fixed member, so that the defects of marks, grooves and the like on the surfaces of the inner wall and the outer wall are caused, and therefore inevitable negative influence can be caused on the elastic continuity and the smoothness of the elastic movable length-variable spring pin conductor.
As shown in fig. 3-4, a technical solution of a spring needle conductor adopting a barb positioning structure in the prior art is provided, in the technical solution, a telescopic member 1b of the conductor extends into a fixed member 2b, a spring accommodating cavity for accommodating a spring member 3b is formed inside the fixed member 2b, the telescopic member 1b extends into the fixed member 2b and realizes axial telescopic movement of the telescopic member 1b relative to the fixed member 2b under the action of an internal spring member 3b, a fixed barb structure 2b-1 is arranged on the inner wall of a housing of the fixed member 2b and radially and inwardly protrudes, a step positioning structure 1b-1 is arranged on the telescopic member 1b, when the telescopic member 1b is installed, the step positioning structure 1b-1 in the axial direction crosses the fixed barb structure 2b-1 to realize insertion of the telescopic member 1b into the fixed member 2b, and the limit telescopic movement of the telescopic member 1b relative to the fixed member 2b is realized through the reverse limit action of the fixed barb structure 2 b-1.
The disadvantages of this connection method are: overcome interference fit resistance, when hard impressing, can cause irreversible plastic deformation to destroy to the outer wall of flexible component and the inner wall of fixed component, lead to the slot to appear in the outer wall surface, and the fixed barb structure of inner wall produces and warp to can lead to inevitable negative effects to elastic continuity and the smooth and easy nature of the flexible activity length-changing spring needle conductor.
Therefore to above-mentioned defect, the utility model provides a following technical scheme is in order to solve defect and the problem that connected mode exists in the present trade.
As shown in fig. 5-7, an elastic movable length-variable pogo pin conductor with a concave structure comprises a telescopic member 1 and a fixed member 2 which are inserted into each other, a spring member 3 is arranged inside the fixed member 2, the telescopic member 1 extends into the fixed member 2 and abuts against the spring member 3, and the telescopic member 1 can axially extend and retract relative to the fixed member 2 under the action of the spring member 3; wherein the content of the first and second substances,
the telescopic component 1 comprises a telescopic end 1-1, a first telescopic shaft 1-2, a first conical connecting part 1-3, a second telescopic shaft 1-4, a second conical connecting part 1-5, a butt end part 1-6 and a butt end 1-7 which are sequentially connected from left to right; wherein the telescopic end 1-1 is fixedly connected with the first telescopic shaft 1-2, the radial dimension of the telescopic end 1-1 is larger than that of the first telescopic shaft 1-2, the first telescopic shaft 1-2 is fixedly connected with the second telescopic shaft 1-4 through the first conical connecting part 1-3, the radial dimension of the first telescopic shaft 1-2 is larger than that of the second telescopic shaft 1-4, the second telescopic shaft 1-4 is fixedly connected with the abutting end part 1-6 through the second conical connecting part 1-5, the radial dimension of the second telescopic shaft 1-4 is smaller than that of the abutting end part 1-6, the abutting end 1-7 is fixedly arranged at the right end of the abutting end part 1-6, and the radial center of the abutting end 1-7 is aligned with that of the spring component 3, thereby ensuring the radial alignment degree of the telescopic member 1 and the fixed member 2 during telescopic movement and avoiding displacement deviation;
the fixed component 2 comprises a component shell 2-1, a spring accommodating cavity 2-2 is formed in the component shell 2-1, and the spring component 3 is arranged in the spring accommodating cavity 2-2;
an annular concave structure C which is concave inwards in the radial direction is arranged on the component shell 2-1, and the concave structure C is formed by external molding after the telescopic component 1 extends into the fixed component 2 and is positioned at a stretching threshold position.
The enough sliding smoothness can be still ensured after the multiple sliding, and the smoothness of the telescopic component after the multiple sliding in the fixed component can still be consistent with the smoothness in the initial state due to the absence of surface scratch damage caused by interference or a transitional assembly process, so that the use quality and the service life of the spring needle conductor can be effectively ensured, the cost and the resource are saved, and the environment is protected; meanwhile, the axial position of the telescopic member moving axially in the fixed member is positioned by adopting the concave structure which is formed after the telescopic member extends into the fixed member, so that the structural shapes of the telescopic member and the fixed member cannot be influenced during installation
The form causes the influence, simultaneously because the shape after the shaping is stable, also can be effectual lower telescopic means in fixed component inside because of the risk that limit structure became invalid and deviate from after using for a long time.
Specifically, after the telescopic member 1 extends into the fixed member 2 and is located at the stretching threshold position, the concave structure C is located at the position, close to the second conical connecting portion 1-5, of the right end of the second telescopic shaft 1-4 in the axial direction, and telescopic motion limiting is achieved while a telescopic motion stroke space as long as possible is provided.
Specifically, after the telescopic member 1 extends into the fixing member 2 and is located at the stretching threshold position, the inner diameter surface C-2 of the concave structure C is located between the second telescopic shaft 1-4 and the outer diameter of the abutting end portion 1-6 in the radial direction, so that the telescopic member 1 is prevented from being released from the inside of the fixing member 2 through the concave structure C when the telescopic member 1 performs telescopic motion in the fixing member 2.
Specifically, the cross sections of the outer diameter surface C-1 and the inner diameter surface C-2 of the concave structure C are both arc-shaped, so that the concave structure C is convenient to form, and on the other hand, the telescopic member 1 is ensured to provide a soft limiting effect while performing telescopic motion in the fixed member 2.
Specifically, the concave structure C is formed at an axial middle position of the fixing member 2, so that the overall axial length of the fixing member 2 is ensured to be stable while the limiting structure is formed.
Specifically, the radial dimensions of the first telescopic shaft 1-2 and the abutting end portion 1-6 are equal, and the first telescopic shaft 1-2, the abutting end portion 1-6 and the inner wall of the component shell 2-1 are in clearance fit, so that the smoothness of the telescopic component 1 extending into the fixed component 2 is realized through clearance fit, and meanwhile, the influence on the shape and the structure of the telescopic component 1 and the fixed component 2 caused by the interference fit after long-term use is avoided.
Specifically, after the telescopic member 1 extends into the fixed member 2 and is located at the stretching threshold position, the abutting ends 1-7 are partially located inside the spring member 3 in the axial direction, so that on one hand, the telescopic stroke space of the telescopic member 1 relative to the fixed member 2 is increased, and on the other hand, the position stability when the telescopic member 1 abuts against the spring member 3 in the telescopic process is ensured by the abutting ends 1-7 being partially located inside the spring member 3 in the axial direction, and the axial deviation is avoided.
Specifically, the inner wall of the member case 2-1 is provided with a smooth inner wall, thereby ensuring smooth installation during the process of inserting the extensible member 1 into the inside of the fixed member 2.
Specifically, the first telescopic shaft 1-2 is provided with the axial positioning mark, so that after the telescopic member 1 is inserted into and mounted in the fixed member 2, whether the axial position of the telescopic member 1 in the fixed member 2 reaches the stretching threshold position or not is determined conveniently through the axial positioning mark arranged on the first telescopic shaft 1-2, and observation and accurate results are facilitated.
Specifically, the utility model also provides a take the forming method of the flexible activity variable length spring needle conductor of indent structure, including following step:
1) extending the telescopic component into the spring accommodating cavity of the fixed component along the inner wall of the construction shell of the fixed component, and ensuring that the abutting end head of the telescopic component abuts against the spring component;
2) adjusting and confirming that the radial center of the abutting end head is aligned with the radial center of the spring member through the radial center of the telescopic end head;
3) adjusting and confirming that the telescopic component extends into the fixed component and is positioned at a stretching threshold position through an axial positioning mark arranged on the first telescopic shaft;
4) on the outer side of a component shell of the fixed component, the rotating roller D and the fixed component rotate simultaneously and reversely, then gradually approach the rotating roller D and the fixed component, the fixed component is radially and inwardly extruded through the rotating roller D, and an annular concave structure is formed on the component shell;
5) and after the rotating roller D and the fixed component are separated, the annular concave structure is cooled and formed.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. An elastic movable length-variable spring needle conductor with a concave structure comprises a telescopic component (1) and a fixed component (2) which are mutually inserted, wherein a spring component (3) is arranged inside the fixed component (2), the telescopic component (1) extends into the fixed component (2), is abutted against the spring component (3) and can axially extend and retract relative to the fixed component (2) under the action of the spring component (3); wherein the content of the first and second substances,
the telescopic component (1) comprises a telescopic end (1-1), a first telescopic shaft (1-2), a first conical connecting part (1-3), a second telescopic shaft (1-4), a second conical connecting part (1-5), a butt end part (1-6) and a butt end (1-7) which are sequentially connected from left to right; wherein the telescopic end head (1-1) is fixedly connected with the first telescopic shaft (1-2) and the radial dimension of the telescopic end head (1-1) is greater than the radial dimension of the first telescopic shaft (1-2), the first telescopic shaft (1-2) is fixedly connected with the second telescopic shaft (1-4) through the first tapered connecting part (1-3) and the radial dimension of the first telescopic shaft (1-2) is greater than the radial dimension of the second telescopic shaft (1-4), the second telescopic shaft (1-4) is fixedly connected with the butt end part (1-6) through the second tapered connecting part (1-5) and the radial dimension of the second telescopic shaft (1-4) is less than the radial dimension of the butt end part (1-6), the right end of the abutting end part (1-6) is fixedly provided with the abutting end head (1-7), and the radial center of the abutting end head (1-7) is aligned with the radial center of the spring component (3);
the fixed component (2) comprises a component shell (2-1), a spring accommodating cavity (2-2) is formed in the component shell (2-1), and the spring component (3) is arranged in the spring accommodating cavity (2-2);
the method is characterized in that:
the component shell (2-1) is provided with an annular concave structure (C) which is arranged in a radially inward concave mode, and the concave structure (C) is formed through external forming after the telescopic component (1) stretches into the fixed component (2) and is located at a stretching threshold position.
2. The elastically movable variable-length pogo pin conductor with the concave structure according to claim 1, wherein: after the telescopic component (1) extends into the fixed component (2) and is located at the stretching threshold position, the concave structure (C) is axially located at the position, close to the second conical connecting portion (1-5), of the right end of the second telescopic shaft (1-4).
3. The elastically movable variable-length pogo pin conductor with the concave structure according to claim 1, wherein: after the telescopic component (1) extends into the fixed component (2) and is located at the stretching threshold position, the inner diameter surface (C-2) of the concave structure (C) is located between the outer diameters of the second telescopic shaft (1-4) and the abutting end portion (1-6) in the radial direction.
4. The elastically movable variable-length pogo pin conductor with the concave structure according to claim 1, wherein: the cross sections of the outer diameter surface (C-1) and the inner diameter surface (C-2) of the concave structure (C) are both arc-shaped.
5. The elastically movable variable-length pogo pin conductor with the concave structure according to claim 1, wherein: the concave structure (C) is formed in the axial middle position of the fixing component (2).
6. The elastically movable variable-length pogo pin conductor with the concave structure according to claim 1, wherein: the radial sizes of the first telescopic shaft (1-2) and the abutting end part (1-6) are equal, and the first telescopic shaft (1-2), the abutting end part (1-6) and the inner wall of the component shell (2-1) are in clearance fit.
7. The elastically movable variable-length pogo pin conductor with the concave structure according to claim 1, wherein: the abutment heads (1-7) are partially located inside the spring member (3) in the axial direction after the telescopic member (1) has been extended inside the fixed member (2) and is located in the threshold position of extension.
8. The elastically movable variable-length pogo pin conductor with the concave structure according to claim 1, wherein: the inner wall of the component shell (2-1) is set to be a smooth inner wall.
9. The elastically movable variable-length pogo pin conductor with the concave structure according to claim 1, wherein: and an axial positioning mark is arranged on the first telescopic shaft (1-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921288076.3U CN210576611U (en) | 2019-08-09 | 2019-08-09 | Elastic movable length-variable spring needle conductor with concave structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921288076.3U CN210576611U (en) | 2019-08-09 | 2019-08-09 | Elastic movable length-variable spring needle conductor with concave structure |
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| CN210576611U true CN210576611U (en) | 2020-05-19 |
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| CN201921288076.3U Active CN210576611U (en) | 2019-08-09 | 2019-08-09 | Elastic movable length-variable spring needle conductor with concave structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416790A (en) * | 2019-08-09 | 2019-11-05 | 江苏正恺电子科技有限公司 | A kind of elongated degree spring needle conductor of elasticity activity and its forming method with concave inward structure |
-
2019
- 2019-08-09 CN CN201921288076.3U patent/CN210576611U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416790A (en) * | 2019-08-09 | 2019-11-05 | 江苏正恺电子科技有限公司 | A kind of elongated degree spring needle conductor of elasticity activity and its forming method with concave inward structure |
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