Shielding spring and connector using same
By designing a rectangular annular shielding spring, the problem of overlapping the elastic arms at the corners of the rectangular connector is solved, and the reliable connection between the shielding spring and the connector housing is achieved and the force is uniform, which improves the shielding effect and service life.
Patent Information
- Application Number
- CN202421601366.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-08
AI Technical Summary
The spacing width between adjacent elastic arms of the existing shielding spring is small and consistent, resulting in overlapping and overlapping at corners in the rectangular connector, which cannot be reliably connected to the connector housing, the elastic arms are unevenly subjected to stress and the shielding spring is prone to fall off.
A rectangular ring-shaped shielding spring is designed to ensure that the two adjacent bullet arms have annular space at the corner position by having a larger width at the end of the elastic arm and a smaller root width, and a symmetrical isosceles trapezoidal cutting joint is set at the corner to avoid overlapping the elastic arm and ensure uniform stress.
It effectively avoids overlapping and overlapping of the elastic arm at the corner, ensures reliable connection with the connector housing, improves the shielding effect and service life, prevents the elastic arm from breaking, and enhances the stability of the connection.
Smart Images
Figure CN223141210U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of conductive connection, in particular to a shielding spring and a connector using the shielding spring. Background Art
[0002] The inner side wall surface of the plug-in port of a rectangular connector is provided with a shielding spring installation groove, and the electromagnetic shielding of the connector interface is realized through the grounded shielding spring sheet body therein. When processing the shielding spring sheet body, a progressive die is often used for forming. The whole is strip-shaped. The shielding spring sheet body is bent and laid along the shielding spring installation groove, surrounding the plug-in port of the rectangular connector as a whole, and then fixed by soldering. The vertical groove wall of the shielding spring installation groove is provided with a horizontally inward extending clamping flange 10 for clamping the shielding spring sheet body. The shielding spring sheet body is as Figure 1-2 shown. It mainly includes a clamping part 20 clamped and connected with the clamping flange 10 on the connector housing 1 and an abutting part for elastically abutting against the mating connector housing inserted into the plug-in port of the connector. The clamping part is a U-shaped with a horizontal opening. The end of the upper side edge of the two parallel sides of the U-shaped clamping part is bent upward to form a vertical abutting edge 210 in contact with the vertical groove wall of the shielding spring installation groove. The top of the vertical abutting edge 210 is bent downward to form an inclined edge. The inclined edge is on the side opposite to the opening of the U-shaped clamping part, and evenly spaced slits are provided thereon to evenly divide the inclined edge into a plurality of elastic arms 211, and each elastic arm 211 constitutes the abutting part.
[0003] For the above-mentioned rectangular connector, in order to ensure the shielding effect of the shielding spring sheet body, the slit width between adjacent elastic arms on the inclined edge of the shielding spring sheet body is small and equal. In this way, there will be a phenomenon of overlapping and overlapping of adjacent elastic arms at the corner of the shielding spring installation groove of the rectangular connector. This will cause uneven force on the elastic arms during use, resulting in the problem that some elastic arms are broken. Moreover, the shielding spring cannot fit well with the groove wall of the shielding spring installation groove at the corner, resulting in ineffective soldering connection between the shielding spring sheet body and the connector housing, increasing the risk of detachment of the shielding spring sheet body and the connector housing during use. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a shielding spring to solve the problem that the interval width between adjacent elastic arms of the existing shielding spring is small and consistent, which easily leads to overlapping of elastic arms at the corner when installed in a rectangular connector, resulting in unreliable connection with the connector housing and uneven force on the elastic arms, which is prone to breakage. At the same time, the utility model also provides a rectangular connector using the shielding spring to solve the problem of shielding failure caused by easy detachment of its shielding spring and easy breakage of the elastic arms of the shielding spring.
[0005] The shielding spring of the present utility model is in a rectangular ring structure and is formed by bending a strip-shaped shielding spring sheet body. The shielding spring sheet body includes a strip-shaped body, and the strip-shaped body includes a clamping part and an abutting part. The abutting part includes a plurality of elastic arms spaced apart in the length direction. Among the elastic arms corresponding to the corner positions of the shielding spring installation groove of the rectangular connector when the strip-shaped body is in use, the slit between two adjacent elastic arms is a flared slit with a larger width at the end of the elastic arm and a smaller width at the root of the elastic arm, so that among the elastic arms at the corner position of the shielding spring, two adjacent elastic arms maintain a circumferential interval.
[0006] Furthermore, among the elastic arms corresponding to the corner positions of the shielding spring installation groove of the rectangular connector when the strip-shaped body is in use, both the opposite side edges of two adjacent elastic arms have inclined sections to form the above-mentioned flared slit therebetween.
[0007] Furthermore, among the elastic arms corresponding to the corner positions of the shielding spring installation groove of the rectangular connector when the strip-shaped body is in use, the opposite inclined sections of two adjacent elastic arms are symmetrically arranged so that an isosceles trapezoidal slit is formed between the two opposite inclined sections.
[0008] Furthermore, there are a plurality of elastic arms at the corner position of the shielding spring, and the intervals between two adjacent elastic arms are the same.
[0009] Furthermore, among the elastic arms corresponding to the straight edges of the shielding spring installation groove of the rectangular connector when the strip-shaped body is in use, the slits between two adjacent elastic arms are all straight slits and have equal widths.
[0010] The present utility model provides a brand-new shielding spring, which is bent into a rectangular ring structure by a shielding spring sheet body. Moreover, through the structural design of the elastic arms corresponding to the corner positions of the shielding spring sheet body, among the elastic arms at the corner position of the shielding spring, two adjacent elastic arms maintain a circumferential interval. In this way, it avoids the problems that after the existing shielding spring sheet body is bent into a shielding spring, the elastic arms at the corner overlap and cannot be reliably connected to the connector housing, and the elastic arms are prone to break due to uneven force.
[0011] The connector of the present utility model includes a connector housing. On the inner side wall surface of the plug-in port of the connector housing, there is a shielding spring installation groove, and a shielding spring is installed therein. The shielding spring is in a rectangular ring structure and is formed by bending a strip-shaped shielding spring sheet body. The shielding spring sheet body includes a strip-shaped body, and the strip-shaped body includes a clamping part and an abutting part. The abutting part includes a plurality of elastic arms spaced apart in the length direction. Among the elastic arms corresponding to the corner positions of the shielding spring installation groove of the rectangular connector when the strip-shaped body is in use, the slit between two adjacent elastic arms is a flared slit with a larger width at the end of the elastic arm and a smaller width at the root of the elastic arm, so that among the elastic arms at the corner position of the shielding spring, two adjacent elastic arms maintain a circumferential interval.
[0012] Further, among the elastic arms corresponding to the corner positions of the shielding spring installation grooves of the rectangular connector when the long strip-shaped body is in use, the relative side edges of two adjacent elastic arms both have inclined segments, so as to form the flared slit therebetween.
[0013] Further, among the elastic arms corresponding to the corner positions of the shielding spring installation grooves of the rectangular connector when the long strip-shaped body is in use, the relative inclined segments of two adjacent elastic arms are symmetrically arranged, so as to form an isosceles trapezoid slit between the two relative inclined segments.
[0014] Further, there are multiple elastic arms at the corner positions of the shielding spring, and the intervals between two adjacent elastic arms are the same.
[0015] Further, among the elastic arms corresponding to the straight edges of the shielding spring installation grooves of the rectangular connector when the long strip-shaped body is in use, the slits between two adjacent elastic arms are all straight slits and have equal widths.
[0016] The utility model improves the existing connector. The shielding spring adopted is formed by bending a shielding spring sheet body into a rectangular ring structure, and through the structural design of the elastic arms corresponding to the corner positions of the shielding spring sheet body, among the elastic arms at the corner positions of the shielding spring, two adjacent elastic arms maintain a circumferential interval, thus avoiding the problems that after the existing shielding spring sheet body is bent into a shielding spring, the elastic arms at the corners overlap and lap, resulting in unreliable connection with the connector housing and easy fracture due to uneven force on the elastic arms. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a structural schematic diagram of an existing shielding spring sheet body;
[0018] Figure 2 is a side view of an existing shielding spring sheet body;
[0019] Figure 3 is a structural schematic diagram of a partial section of the long strip-shaped body of the utility model;
[0020] Figure 4 is a structural schematic diagram of the shielding spring of the utility model;
[0021] Figure 5 is a structural schematic diagram of the connector of the utility model;
[0022] Figure 6 is a sectional view of the connector of the utility model;
[0023] Figure 7 is an enlarged view of the shielding spring at the corner.
[0024] In the figure: 1. Connector housing; 2. Shielding spring; 20. Clamping part; 210. Vertical abutting edge; 211. Elastic arm; 212. Slit; 213. Isosceles trapezoidal elastic arm; 214. Right trapezoidal elastic arm; 215. Arc part; 216. Straight part. Detailed implementation mode
[0025] The features and performance of the present utility model will be further described in detail below in conjunction with embodiments.
[0026] The connector of the present utility model improves the existing connector. The shielding spring installed in the shielding spring installation groove is compared with the existing shielding spring sheet body. Among the elastic arms corresponding to the corners of the shielding spring installation groove, the slit between adjacent two elastic arms is improved to be a flared slit with a larger width at the end of the elastic arm and a smaller width at the root of the elastic arm. In this way, when the long strip-shaped body is bent and installed in the shielding spring installation groove, among the elastic arms corresponding to the corner positions of the shielding spring installation groove of the rectangular connector, the purpose of keeping the adjacent two elastic arms at a circumferential interval is achieved, thus avoiding the problems that the existing shielding spring sheet body cannot be reliably connected to the connector housing due to the overlapping of the elastic arms at the corners after being bent into a shielding spring, and the elastic arms are prone to break due to uneven force.
[0027] Based on the above design concept, the following provides a variety of different embodiments for illustration.
[0028] As Figure 5-6 In the illustrated embodiment of the connector, the connector includes a connector housing 1. The connector housing 1 has a rectangular plug-in port for the plug-in end of the adapted connector to be inserted. In order to achieve shielding isolation at the plug-in cross-section, a shielding spring installation groove is provided on the inner side surface of the connector plug-in port, and a shielding spring 2 is installed therein. The shielding spring 2 is pre-bent from a long strip-shaped shielding spring sheet body into a rectangular ring shape and is welded at the head and tail. It is arranged around the plug-in port and contacts the housing of the adapted connector after the adapted connector is inserted, so as to achieve grounding.
[0029] The shielding spring sheet body of this embodiment is as Figure 3As shown, it is in a long strip shape. Different from the existing shielding reed body, among the elastic arms 211 corresponding to the corner positions of the shielding reed installation groove of the rectangular connector when the long strip-shaped body is in use, the slit 212 between two adjacent elastic arms 211 is a flared slit 212 with a larger width at the end of the elastic arm 211 and a smaller width at the root of the elastic arm 211. Moreover, particularly, the size and shape of the flared slit 212 satisfy that when the shielding reed body is bent to form the shielding reed 2, among the elastic arms 211 corresponding to the corner positions of the shielding reed installation groove of the rectangular connector, two adjacent elastic arms 211 maintain a circumferential interval. In this way, the elastic arms 211 at the corner will not interfere with each other, that is, the phenomena of lapping and overlapping will not occur, avoiding the problems introduced in the background art, and ensuring the reliable shielding and service life of the connector.
[0030] On the basis of the above embodiment, preferably, in one embodiment, by means of Figure 3-4 It is shown that among the elastic arms 211 corresponding to the corner positions of the shielding reed installation groove of the rectangular connector when the long strip-shaped body is in use, the relative side edges of two adjacent elastic arms 211 both have inclined sections to form the flared slit 212 therebetween. In this way, when the long strip-shaped body is bent, during the process of the elastic arms 211 at the corner position approaching each other during bending, the inclined sections of the relative side edges approach each other, and the interval formed after bending can ensure linear extension as much as possible in the extending direction of the elastic arm 211, with a regular shape, which is beneficial to ensuring uniform force on the elastic arm 211.
[0031] On the basis of the above embodiment, preferably, in one embodiment, by means of Figure 3-4 It is shown that among the elastic arms 211 corresponding to the corner positions of the shielding reed installation groove of the rectangular connector when the long strip-shaped body is in use, the relative inclined sections of two adjacent elastic arms 211 are symmetrically arranged so that an isosceles trapezoidal slit 212 is formed between the two relative inclined sections. In this way, the interval formed between two adjacent elastic arms 211 after bending is more likely to ensure linear extension in the extending direction of the elastic arm 211, and the force on the elastic arm 211 is more uniform. Specifically, to achieve the above purpose, in this embodiment, the elastic arm 211 within the arc portion of the corner is set to be approximately isosceles trapezoidal, that is, the inclined sections on the two relative side edges are symmetrically arranged, so that the entire elastic arm 211 is in an isosceles trapezoidal structure in this part, which can be called an isosceles trapezoidal elastic arm 213; the elastic arm 211 at the edge of the arc portion of the corner and connected to the straight side beside the corner is set as a right trapezoidal elastic arm 214, that is, among the two relative side edges of this elastic arm 211, one side edge is an inclined edge and the other side edge is a straight edge perpendicular to the extending direction of the long strip-shaped sheet body. As Figure 7As shown, when there are three elastic arms 211 corresponding to the corner positions, the middle elastic arm 211 is located at the middle of the corner, and the two elastic arms 211 on both sides respectively transition into the corner and the adjacent straight edge. That is, the middle elastic arm 211 is integrally bent into an arc shape, and the two elastic arms 211 on both sides respectively include a straight portion 216 flush with the adjacent straight edge and an arc portion 215 on the same arc surface as the middle arc-shaped elastic arm 211. Then, in some embodiments, when there are four (as shown in Figure 3 shown) or more elastic arms 211 corresponding to the corner positions, the two elastic arms 211 on both sides have the same structure as the elastic arms 211 on both sides of the two corner positions shown in Figure 7 , that is, they include a straight portion 216 and an arc portion 215. The two (as shown in Figure 3 shown) or more elastic arms 211 in the middle are all bent into an arc shape. This can achieve redundant configuration, and when the shielding spring is installed into the connector housing, the probability of the isosceles elastic arms being distributed at the corners is greatly increased. Of course, such an example does not exclude that in some embodiments, all the elastic arms 211 at the corner positions are bent into an arc shape, as long as both ends can be relatively smoothly transitioned with the straight edges on both sides of the corner.
[0032] Based on the above embodiments, in one embodiment, in order to better ensure the uniform force on the elastic arms 211, there are multiple elastic arms 211 at the corner positions of the shielding spring 2, and among the multiple elastic arms 211, the intervals between every two adjacent elastic arms 211 are the same, that is, they have the same shape and size.
[0033] In the above embodiments, there is not much introduction about the parts of the shielding spring 2 corresponding to the straight edges of the shielding spring installation groove. In fact, the parts corresponding to the straight edges of the shielding spring installation groove can have the same structure as the existing shielding spring sheet body. In the above embodiments of the present invention, among the elastic arms 211 corresponding to the straight edges of the shielding spring installation groove of the rectangular connector, the cut slits 212 between every two adjacent elastic arms 211 are all straight cut slits 212 and have the same width. This is also to ensure that the force on each elastic arm 211 is more uniform.
[0034] The embodiment of the shielding spring of the present invention has the same specific structure as the shielding spring structure in the embodiment of the connector introduced above, and will not be described in detail here.
[0035] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention is subject to the claims. All equivalent structural changes made by using the description and drawings of the present invention should, by the same token, be included in the protection scope of the present invention.
Claims
1. Shield spring, characterized in that, It is a rectangular ring structure, formed by bending a strip-shaped body. The strip-shaped body includes a clamping part (20) and an abutting part. The abutting part includes a plurality of elastic arms (211) spaced apart in the length direction. Among the elastic arms (211) corresponding to the corner positions of the shielding spring installation groove of the rectangular connector when the strip-shaped body is in use, the slit (212) between two adjacent elastic arms (211) is a flared slit (212) with a larger width at the end of the elastic arm (211) and a smaller width at the root of the elastic arm (211), so that among the elastic arms (211) at the corner positions of the shielding spring (2), two adjacent elastic arms (211) maintain a circumferential interval.
2. The shielding spring according to claim 1, characterized in that Among the elastic arms (211) corresponding to the corner positions of the shielding spring installation groove of the rectangular connector when the strip-shaped body is in use, the opposite sides of two adjacent elastic arms (211) both have inclined segments to form the flared slit (212) therebetween.
3. The shielding spring according to claim 2, characterized in that, Among the elastic arms (211) corresponding to the corner positions of the shielding spring installation groove of the rectangular connector when the strip-shaped body is in use, the opposite inclined segments of two adjacent elastic arms (211) are symmetrically arranged so that an isosceles trapezoidal slit (212) is formed between the two opposite inclined segments.
4. The shielding spring according to any one of claims 1-3, characterized in that, There are multiple elastic arms (211) at the corner positions of the shielding spring (2), and the intervals between two adjacent elastic arms (211) are the same.
5. The shielding spring according to any one of claims 1-3, characterized in that, Among the elastic arms (211) corresponding to the straight sides of the shielding spring installation groove of the rectangular connector when the strip-shaped body is in use, the slit (212) between two adjacent elastic arms (211) is a straight slit (212) and has the same width.
6. Connector, comprising a connector housing (1), wherein a shielding spring mounting groove is provided on the inner wall surface of the plug-in port of the connector housing (1), and a shielding spring (2) is mounted therein, characterized in that, The shielding spring (2) is a rectangular ring structure, formed by bending a strip-shaped body. The strip-shaped body includes a clamping part (20) and an abutting part. The abutting part includes a plurality of elastic arms (211) spaced apart in the length direction. Among the elastic arms (211) corresponding to the corner positions of the shielding spring installation groove of the rectangular connector when the strip-shaped body is in use, the slit (212) between two adjacent elastic arms (211) is a flared slit (212) with a larger width at the end of the elastic arm (211) and a smaller width at the root of the elastic arm (211), so that among the elastic arms (211) at the corner positions of the shielding spring (2), two adjacent elastic arms (211) maintain a circumferential interval.
7. The connector according to claim 6, characterized in that Among the elastic arms (211) corresponding to the corner positions of the shielding spring installation groove of the rectangular connector when the strip-shaped body is in use, the opposite sides of two adjacent elastic arms (211) both have inclined segments to form the flared slit (212) therebetween.
8. The connector according to claim 7, characterized in that, Among the elastic arms (211) corresponding to the corner positions of the shielding spring installation groove of the rectangular connector when the strip-shaped body is in use, the opposite inclined segments of two adjacent elastic arms (211) are symmetrically arranged so that an isosceles trapezoidal slit (212) is formed between the two opposite inclined segments.
9. The connector according to any one of claims 6 - 8, characterized in that, There are multiple elastic arms (211) at the corner positions of the shielding spring (2), and the intervals between two adjacent elastic arms (211) are the same.
10. The connector according to any one of claims 6-8, characterized in that, When in use, among the elastic arms (211) corresponding to the straight edges of the shielding spring installation grooves of the rectangular connector in the long strip-shaped body, the slits (212) between adjacent two elastic arms (211) are all linear slits (212) and have equal widths.