CN216289097U - Spring type probe connector - Google Patents
Spring type probe connector Download PDFInfo
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- CN216289097U CN216289097U CN202122326795.3U CN202122326795U CN216289097U CN 216289097 U CN216289097 U CN 216289097U CN 202122326795 U CN202122326795 U CN 202122326795U CN 216289097 U CN216289097 U CN 216289097U
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- spring
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- probe connector
- needle head
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Abstract
The utility model discloses a spring type probe connector, which comprises a needle head, a needle tube, an action piece and a spring, wherein a cavity is formed in the needle head, a containing cavity is formed in the needle tube, the action piece is assembled in the cavity, the spring is arranged in the containing cavity, the needle head can be contained in the containing cavity in a sliding and telescopic mode along the depth direction of the containing cavity, the cavity is communicated with the containing cavity, one end of the spring is abutted against the bottom of the containing cavity, the other end of the spring extends into the cavity and is abutted against the action piece, when the needle head is pushed to slide in the containing cavity in a pushing mode, the spring is compressed to apply force to the action piece, and the needle head is enabled to incline towards one side of the needle tube in a directional mode and is enabled to be attached to the inner side wall of the connecting cavity. According to the technical scheme, the needle head of the small-space probe connector can be stably contacted with the inside of the needle tube, the contact resistance value of a product is reduced, the current-carrying capacity is improved, and the application field of the product is expanded.
Description
Technical Field
The utility model relates to the technical field of connectors, in particular to a spring type probe connector.
Background
The Pogo pin is a spring type probe precision connector formed by riveting and prepressing three basic components including a needle head, a spring and a needle tube through a precision instrument, can be applied to small and exquisite electronic products such as mobile phones and the like, is widely applied to semiconductor equipment, and plays a role in connection. A part of the needle head extends into the needle tube, and the spring is arranged in the needle tube and is abutted against the needle head.
The relatively common internal structure of Pogo pin connectors has: the structure of the hole is a reverse drilling structure, a section slope structure, a slope ball structure and the like, wherein the reverse drilling structure and the section slope structure are widely applied. The back drilling structure drills a hole at the bottom of the needle head, and the spring extends into the drilled hole, so that the product space is saved; the bevel structure makes the bottom of the needle head form a bevel, and the spring is abutted against one side of the bevel. When the needle is pressed, the elastic force of the spring makes the needle incline and cling to the needle tube so that current flows from the passage formed by the needle and the needle tube.
The reverse drilling design is suitable for small-sized connectors because the spring length of the design can exceed the length of the needle tube, so that the overall size of the connector can be reduced, but the problems of unstable contact and poor instantaneous disconnection easily occur in dynamic compression use. The design of the structure of the section bevel can ensure that the needle head is in close contact with the needle tube so as to reduce the probability of instantaneous power failure. In the prior art, the two structures are combined, and the hole bottom of the reverse drilling hole structure is made into an inclined plane, so that the connector is reduced in size and the connecting effect is ensured, but the needle head of the structure is difficult to machine and form, and is limited in popularization and use.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a spring type probe connector, aiming at solving the problem of high cost in the prior art.
In order to achieve the above object, the spring type probe connector according to the present invention includes:
the syringe needle, the said syringe needle forms the cavity pocket with an opening inside;
the needle tube is internally provided with an accommodating cavity, the needle head can be accommodated in the accommodating cavity in a sliding and telescopic manner along the depth direction of the accommodating cavity, and the cavity is communicated with the accommodating cavity;
an acting piece assembled in the cavity;
the spring is arranged in the accommodating cavity, one end of the spring is abutted against the cavity bottom of the accommodating cavity, and the other end of the spring extends into the cavity and is abutted against the acting piece;
when the needle head is pushed to slide in the containing cavity, the spring is compressed to apply force to the acting piece, so that the needle head is inclined towards one side of the needle tube and is abutted against the inner side wall of the containing cavity.
In one embodiment, a side of the acting element facing the cavity bottom is provided as a first slope, and a side of the acting element facing away from the first slope abuts against the spring.
Preferably, the spring further comprises a fixed column, the fixed column is connected with one side, back to the first inclined plane, of the acting element, and the fixed column extends into the spring.
Preferably, the bottom of the accommodating cavity is convexly provided with a positioning part, and the positioning part extends into the spring.
Preferably, the included angle between the first inclined plane and the plane perpendicular to the telescopic sliding direction of the needle head is 5 to 45 degrees.
In an embodiment, a side of the acting element facing the bottom of the accommodating cavity is provided with a second inclined surface, and the second inclined surface abuts against the spring.
Preferably, the device further comprises a stabilizing column, the stabilizing column is connected with one side, back to the second inclined surface, of the acting element, a blind hole is formed in the cavity bottom of the cavity, and the stabilizing column is embedded into the blind hole.
Preferably, the bottom of the accommodating cavity is concavely provided with a positioning groove, and one end of the spring extends into the positioning groove.
Preferably, the positioning groove is a tapered groove.
Preferably, the angle between the second inclined plane and the plane perpendicular to the telescopic sliding direction of the needle is 10 to 45 degrees.
According to the technical scheme, the action piece is assembled in the cavity in the needle head, when the needle head is pushed to slide into the needle tube accommodating cavity, the spring is compressed to apply force to the action piece, the needle head is enabled to incline towards one side of the needle tube in a directional mode through the action piece, the needle tube is attached to the inner side wall of the accommodating cavity in a clinging mode, therefore, a hole bottom of an inclined plane does not need to be formed in the inner drilling hole of the needle head, the process difficulty is reduced, and the manufacturing cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of one embodiment of a spring-loaded probe connector of the present invention;
FIG. 2 is a cross-sectional view of the spring-loaded probe connector of FIG. 1;
FIG. 3 is an exploded view of the spring-loaded probe connector of FIG. 1;
FIG. 4 is a schematic structural view of another embodiment of the spring-loaded probe connector of the present invention;
FIG. 5 is a cross-sectional view of the spring-loaded probe connector of FIG. 4;
fig. 6 is an exploded view of the spring-loaded probe connector of fig. 4.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
11 | |
| 12 | |
13 | Contact |
| 14 | Opening of the |
20 | |
| 21 | Containing |
22 | Stop |
| 30 | |
40 | |
| 50 | |
60 | Positioning |
| 70 | Stabilizing |
80 | Locating slot |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
Furthermore, the descriptions relating to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Further, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, exemplified by "A and/or B" including either A aspect, or B aspect, or both A and B aspects. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a spring type probe connector.
Referring to fig. 1 to 6, the spring type probe connector of the present invention includes a needle 10, a needle tube 20, an acting member 30 and a spring 40. A cavity 11 with an opening 14 is formed inside the needle 10, an accommodating cavity 21 penetrating through one end is formed inside the needle tube, and one end of the needle 10 with the opening 14 extends into the accommodating cavity 21, so that the cavity 11 is communicated with the accommodating cavity 21. The acting element 30 is a separate component and is assembled in the cavity 11. The spring 40 is located in a hollow structure formed by sleeving the needle 10 and the needle tube 20, one end of the spring 40 abuts against the bottom of the accommodating cavity 21, and the other end abuts against the acting element 30. The needle head 10 is provided with a front end and a rear end, one end, close to the opening 14, of the needle head 10 is the rear end, the other end of the needle head is the front end, the periphery of the rear end is convexly provided with a contact part 13, the opening 14 extends inwards to form a stopping part 22, the outer diameter of the contact part 13 is larger than the inner diameter of the stopping part 22, therefore, the contact part 13 and the stopping part 22 are matched to limit the needle head 10, the needle head 10 cannot slide out of the accommodating cavity 21 completely, the repeated assembly process is omitted, and the loss of parts is avoided. The needle 10 can be telescopically received in the receiving cavity 21 in a sliding manner along the depth direction of the receiving cavity 21.
In the above embodiment, the needle 10 has the first position and the second position, when no external force is applied, the end of the needle 10 facing away from the opening 14 extends out of the accommodating cavity 21 to the maximum extent, the contact portion 13 abuts against the stopping portion 22, and the needle 10 is at the first position. When the needle 10 is pushed to the depth direction of the receiving cavity 21 by an external force, the spring 40 is compressed to apply a force to the acting element 30, at least one height difference is formed on one surface of the acting element 30 facing the cavity bottom of the cavity 11 and/or one surface of the receiving cavity 21, so that the pushing force of the acting element 30 to the two sides of the needle 10 is uneven, the needle 10 is inclined to the side with smaller pushing force, and the needle 10 is inclined to one side of the needle tube 20 to abut against the inner side wall of the receiving cavity 21, and at this time, the needle 10 is in the second position.
In the above embodiment, the surface of the acting element 30 on which the height difference is formed may be a slope surface, a wavy surface, a convex surface, or the like to form the height difference, and the slope surface is preferable in view of manufacturing cost. When the surface of the acting element 30 facing the bottom of the cavity 11 and the surface of the bottom of the receiving cavity 21 are both inclined surfaces, the ends of the two inclined surfaces which are farthest away from the horizontal plane are required to be on the same side. The contact portion 13 may be a protruding block structure or an arc surface structure, and in order to improve the connection effect of the spring type probe connector as much as possible by considering the principle that the larger the contact surface is, the smaller the resistance is, it is preferable that the contact portion 13 is formed by extending the outer circumference of the rear end of the needle 10 outward to increase the maximum outer diameter, and the maximum contact surface is ensured.
According to the technical scheme of the utility model, the action piece 30 which is an independent component is additionally arranged and assembled in the cavity 11, so that when the spring type probe connector is used, the needle head 10 is pushed towards the depth direction of the accommodating cavity 21, the spring 40 applies upward pushing force to the action piece 30, and the action piece 30 enables the needle head 10 to be directionally inclined towards one side of the needle tube 20 due to uneven force and to be abutted against the inner side wall of the accommodating cavity 21. Therefore, the manufacturing cost can be reduced while the connection stability and the connection effect of the spring type probe connector are ensured.
In an embodiment, referring to fig. 2, preferably, a surface of the acting element 30 facing the bottom of the cavity 11 is a first inclined surface, and a surface of the acting element 30 facing away from the first inclined surface abuts against the spring 40. The end, closest to the horizontal plane, of the first inclined plane is a first end, and the end, farthest from the horizontal plane, of the first inclined plane is a second end. A gap is formed between the first end and the cavity bottom of the cavity 11, and the second end is abutted against the cavity bottom of the cavity 11. When the needle 10 is in the second position the spring 40 is compressed and exerts an upward force on the acting element 30. On one hand, since a gap is formed between the first end and the cavity bottom of the cavity 11, a buffer space is formed on one side of the spring 40 close to the first end; on the other hand, since the second end abuts against the bottom of the cavity 11, the side of the spring 40 close to the second end is compressed more and the elastic force is also greater than the side close to the first end. Thus, the spring force exerted by the spring 40 on the acting element 30 is not uniform, which results in the side of the needle 10 near the second end being subjected to a greater force than the side near the first end, the needle 10 being oriented obliquely towards the side of the tube 20 near the first end. At this time, the outer side surface of the contact portion 13 abuts against the inner side wall of the housing cavity 21 near the second end, and most of the current flows therethrough.
Preferably, with reference to fig. 2, the spring type probe connector further includes a fixing post 50, the fixing post 50 is connected to a side of the acting element 30 opposite to the first inclined surface, the connection manner is not limited, and may be welding, gluing, integral molding, etc., and the fixing post 50 and the acting element 30 are preferably integrally molded in view of smaller volume and reduced manufacturing cost. The fixing posts 50 extend into the springs 40 to fix the positions of the acting element 30 and the springs 40, so as to prevent the acting element 30 from being deformed and inclined due to long-term pushing, and prevent the springs 40 from deflecting and displacing. The shape of the fixing column 50 is not limited, and may be a cylinder, a cone, a prism, etc., and the cylinder is preferred here, so that the process is simplified and the fixing effect is better. In addition, the fixing post 50 may be chamfered to facilitate insertion of the fixing post 50 into the spring 40.
Further, with reference to fig. 2, the spring type probe connector further includes a positioning portion 60, the positioning portion 60 is disposed at the bottom of the accommodating cavity 21 in a protruding manner, and the positioning portion 60 extends into the spring 40 and fixes the position of the spring 40 together with the fixing portion 50 to prevent the spring 40 from deflecting and displacing. The shape of the positioning portion 60 is not limited, and may be a cylinder, a cone, a prism, etc., and a cone is preferred here to assist the fixing portion 50 in fixing the position of the spring 40, thereby saving material.
In the above embodiment, the included angle between the first inclined plane and the plane perpendicular to the telescopic sliding direction of the needle 10 is 5 to 45 degrees, such as 5 °, 10 °, 15 °, 20 °, 25 °, 30 °, 45 °, and the like, preferably 15 °, which is the most effective.
In another embodiment, referring to fig. 5, a second inclined surface is disposed on a surface of the acting element 30 facing the bottom of the receiving cavity 21, the second inclined surface abuts against the spring 40, and a surface of the acting element 30 opposite to the second inclined surface abuts against the bottom of the receiving cavity 21. The end, closest to the horizontal plane, of the second inclined plane is a third end, and the end, farthest from the horizontal plane, of the second inclined plane is a fourth end. When the needle 10 is in the first position, there is a gap between the third end and the spring 40, and the fourth end interferes with the spring 40. When the needle 10 is in the second position, on the one hand, due to the clearance between the third end and the spring 40, a buffer space is provided on the side of the spring 40 close to the third end; on the other hand, since the fourth end interferes with the spring 40, the spring 40 is compressed more and the elastic force is relatively greater on the side near the fourth end than on the side near the third end. Consequently, the spring force exerted by the spring 40 on the acting element 30 is not uniform, which in turn results in the needle 10 being subjected to a greater force on the side closer to the fourth end than on the side closer to the third end, the needle 10 being oriented obliquely towards the side of the needle tube 20 closer to the third end. At this time, the outer side surface of the contact portion 13 is in close contact with the inner side wall of the housing cavity 21 near the fourth end, and most of the current flows therethrough.
Preferably, with continued reference to fig. 5, the spring-loaded probe connector further includes a stabilizing post 70, the stabilizing post 70 is connected to a side of the acting element 30 opposite to the second inclined surface, and the connection manner is not limited, and may be welding, gluing, integral molding, etc., and considering that the volume is small and the manufacturing cost is reduced, the stabilizing post 70 is preferably integrally formed with the acting element 30. The bottom of the cavity 11 is further provided with a blind hole 12, and the stabilizing column 70 is embedded in the blind hole 12 to fix the position of the acting element 30 and prevent the acting element from deflecting and displacing. The shape of the stabilizing column 70 is not limited, and may be a cylinder, a cone, a prism, etc., and a cylinder is preferred here to simplify the process. In addition, the stabilizing column 70 can be chamfered, so that the stabilizing column can be conveniently embedded into the blind hole 12, and the assembly difficulty is reduced.
Further, with reference to fig. 5, the spring type probe connector further includes a positioning groove 80, the positioning groove 80 is concavely disposed at the bottom of the accommodating cavity 21, the spring 40 extends into the positioning groove 80, and the positioning groove 80 is used to fix the position of the spring 40 and prevent the spring 40 from deflecting and displacing. The shape of the positioning groove 80 is not limited, and may be a cylinder, a cone, an arc, etc., and a cone is preferred here, and the spring 40 abuts against the inclined surface of the conical positioning groove 80, so that the friction force is increased, the spring 40 is not easy to deflect and displace, and the process is simple.
In the above embodiment, the angle between the second inclined plane and the plane perpendicular to the telescopic sliding direction of the needle 10 is 5 to 45 degrees, such as 5 °, 10 °, 15 °, 20 °, 25 °, 30 °, 45 °, and the like, preferably 15 °, which is the most effective.
In a preferred embodiment, the opening 14 is flared to facilitate assembly of the reaction member 30 and the spring 40.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A spring-loaded probe connector, comprising:
the syringe needle, the said syringe needle forms the cavity pocket with an opening inside;
the needle tube is internally provided with an accommodating cavity, the needle head can be accommodated in the accommodating cavity in a sliding and telescopic manner along the depth direction of the accommodating cavity, and the cavity is communicated with the accommodating cavity;
an acting piece assembled in the cavity;
the spring is arranged in the accommodating cavity, one end of the spring is abutted against the cavity bottom of the accommodating cavity, and the other end of the spring extends into the cavity and is abutted against the acting piece;
when the needle head is pushed to slide in the containing cavity, the spring is compressed to apply force to the acting piece, so that the needle head is inclined towards one side of the needle tube and is abutted against the inner side wall of the containing cavity.
2. The spring probe connector of claim 1, wherein a side of the acting element facing the bottom of the cavity is configured as a first ramp, and a side of the acting element facing away from the first ramp abuts the spring.
3. The spring probe connector of claim 2, further comprising a securing post connected to a side of the acting element facing away from the first ramp, the securing post extending into the spring.
4. The spring probe connector of claim 3, wherein the receiving cavity has a detent protruding from a bottom thereof, the detent extending into the spring.
5. The spring probe connector of any one of claims 2 to 4, wherein the first ramp is angled at between 5 and 45 degrees from a plane perpendicular to the direction of telescopic sliding of the spike.
6. The spring probe connector of claim 1, wherein a side of the acting element facing a bottom of the receiving cavity is provided with a second inclined surface, the second inclined surface abutting against the spring.
7. The spring probe connector of claim 6, further comprising a stabilizing post connected to a side of the acting element facing away from the second inclined surface, wherein a blind hole is provided in a bottom of the cavity, and the stabilizing post is embedded in the blind hole.
8. The spring probe connector of claim 7, wherein the receiving cavity is recessed with a detent, one end of the spring extending into the detent.
9. The spring probe connector of claim 8, wherein the detent is a tapered groove.
10. The spring probe connector of any one of claims 6 to 9, wherein the second ramp is angled at between 5 and 45 degrees to a plane perpendicular to the direction of telescopic sliding of the needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122326795.3U CN216289097U (en) | 2021-09-24 | 2021-09-24 | Spring type probe connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122326795.3U CN216289097U (en) | 2021-09-24 | 2021-09-24 | Spring type probe connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216289097U true CN216289097U (en) | 2022-04-12 |
Family
ID=81065520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122326795.3U Active CN216289097U (en) | 2021-09-24 | 2021-09-24 | Spring type probe connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216289097U (en) |
-
2021
- 2021-09-24 CN CN202122326795.3U patent/CN216289097U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221128 Address after: 410000 first floor, building A1, Hunan Inspection and testing characteristic industrial park, No. 336, bachelor street, Yuelu District, Changsha City, Hunan Province Patentee after: Hunan Yingluokang Technology Co.,Ltd. Address before: 410000 first floor, building A1, Hunan Inspection and testing characteristic industrial park, No. 336, bachelor street, Yuelu District, Changsha City, Hunan Province Patentee before: Hunan Tuolian Precision Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |