CN216488631U - Metal connecting terminal - Google Patents
Metal connecting terminal Download PDFInfo
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- CN216488631U CN216488631U CN202121504490.0U CN202121504490U CN216488631U CN 216488631 U CN216488631 U CN 216488631U CN 202121504490 U CN202121504490 U CN 202121504490U CN 216488631 U CN216488631 U CN 216488631U
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- metal sleeve
- connecting terminal
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Abstract
The utility model relates to the technical field of connectors, in particular to a metal connecting terminal which comprises a metal sleeve and a claw spring, wherein the claw spring is used for clamping an external connecting terminal; set up claw spring and metal sleeve separately, and with the claw spring assembly in metal sleeve, the claw spring forms hard interference with metal sleeve interference fit, hard interference makes and produces bigger forward force between metal sleeve and the claw spring, thereby can fix the claw spring, can increase the stress of shell fragment to external connection terminal through the forward force that hard interference produced again, thereby increase the connection steadiness to external connection terminal, and then improve the electrical contact stability between shell fragment and the external connection terminal, therefore when making metal sleeve and shell fragment, can avoid adopting noble metal coating to improve electric connection performance, so help reducing the cost of manufacturing.
Description
Technical Field
The utility model relates to the technical field of connectors, in particular to a metal connecting terminal.
Background
The metal terminal used in the Fakra connector is generally in a structure as shown in fig. 8, and the elastic piece and the metal end of the metal terminal are integrally designed, that is, when the metal terminal is connected with an external connecting terminal, only the elastic force between the elastic piece and the elastic piece clamps the external connecting terminal, but actually, the external connecting terminal is not fixed stably enough by the stress generated by the elastic piece on the external connecting terminal, and the electrical contact performance is unstable, so that the stability of data transmission between two connectors is easily influenced.
Disclosure of Invention
The utility model provides a metal connecting terminal aiming at the problems in the prior art, wherein a claw spring and a metal sleeve are separately arranged, the claw spring is assembled in the metal sleeve, the claw spring and the metal sleeve are in interference fit, and the metal sleeve and the claw spring generate larger stress through hard interference, so that the claw spring can be fixed, and the stress of a spring sheet on an external connecting terminal can be increased through the stress generated by the hard interference, so that the connection stability of the external connecting terminal is increased.
In order to solve the technical problems, the utility model adopts the following technical scheme: a metal connecting terminal comprises a metal sleeve and a claw spring, wherein the claw spring is used for clamping an external connecting terminal, the metal sleeve is provided with a containing cavity, and the claw spring is assembled in the containing cavity; the pawl spring comprises a supporting part and a clamping part connected with the supporting part, and the periphery of the supporting part is in interference fit with the metal sleeve; the clamping part comprises a plurality of elastic sheets arranged at intervals, one end of each elastic sheet is fixed on the supporting part, a plurality of clamping openings are formed between the other ends of the elastic sheets, and the clamping openings are used for assembling external connecting terminals.
Preferably, the support portion is annular.
Preferably, the supporting part is assembled at the cavity opening of the containing cavity, and the clamping part is positioned between the cavity opening of the containing cavity and the cavity bottom.
Preferably, the clamping opening of the clamping portion is located at the cavity opening of the cavity, and the supporting portion is located between the cavity opening and the cavity bottom of the cavity.
Preferably, the elastic pieces are six and are arranged at equal intervals.
Preferably, the cross-sectional area of one end of the elastic sheet connected with the supporting part is larger than that of one end of the elastic sheet positioned at the clamping opening.
Preferably, the accommodating cavity comprises an assembly cavity and a bottom cavity which are communicated with each other, the pawl spring is installed in the assembly cavity, the assembly cavity is cylindrical, and the bottom cavity is conical.
Preferably, the outer wall of the metal sleeve is provided with a convex rib.
Preferably, the outer wall of the metal sleeve is convexly provided with a limiting boss.
The utility model has the beneficial effects that:
according to the metal connecting terminal provided by the utility model, the claw spring and the metal sleeve are separately arranged, the claw spring is assembled in the metal sleeve, the claw spring and the metal sleeve are in interference fit to form hard interference, and the hard interference enables a larger positive force to be generated between the metal sleeve and the claw spring, so that the claw spring can be fixed, and the stress of the elastic sheet on an external connecting terminal can be increased through the positive force generated by the hard interference, so that the connection stability of the external connecting terminal is increased, and further the electrical contact stability between the elastic sheet and the external connecting terminal is improved, therefore, when the metal sleeve and the elastic sheet are manufactured, the electric connection performance can be improved by avoiding the adoption of a precious metal coating, and the manufacturing cost is favorably reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a first schematic structural diagram of the pawl spring of the present invention;
FIG. 3 is a first structural view of the pawl spring of the present invention;
FIG. 4 is a schematic view of the mating structure of the pawl spring and the metal sleeve of the present invention;
FIG. 5 is a cross-sectional view of a metal sleeve of the present invention;
FIG. 6 is a cross-sectional view of a metal sleeve and pawl spring in accordance with a first embodiment of the present invention;
FIG. 7 is a cross-sectional view of a metal sleeve and pawl spring according to a second embodiment of the present invention;
fig. 8 is a prior art metal terminal.
The reference numerals in fig. 1 to 8 include:
1-metal sleeve, 2-pawl spring, 3-containing cavity, 4-supporting part, 6-elastic sheet, 7-clamping opening, 8-assembly cavity, 9-bottom cavity, 10-convex rib and 11-boss.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention is described in detail below with reference to the attached drawings.
The first embodiment is as follows:
the metal connecting terminal provided by the embodiment, as shown in fig. 1 to 5, includes a metal sleeve 1 and a pawl spring 2, where the pawl spring 2 is used for clamping an external connecting terminal, the metal sleeve 1 is provided with a cavity 3, and the pawl spring 2 is assembled in the cavity 3; the pawl spring 2 comprises a supporting part 4 and a clamping part connected with the supporting part 4, and the periphery of the supporting part 4 is in interference fit with the metal sleeve 1; the clamping part comprises a plurality of elastic sheets 6 arranged at intervals, one ends of the elastic sheets 6 are fixed on the supporting part 4, a plurality of clamping openings 7 are formed between the other ends of the elastic sheets 6, and the clamping openings 7 are used for assembling external connecting terminals.
Specifically, as shown in fig. 8, for the metal terminal in the prior art, since the elastic sheet 6 and the metal end are integrally disposed, and the external connection terminal is clamped only by the elastic sheet 6, unstable connection and unstable electrical contact are easily caused, in the prior art, a metal plating layer with better electrical conductivity is applied to the metal end and the elastic sheet 6, so that the stability of electrical contact can be improved, but the manufacturing cost is also increased. In this embodiment, the metal sleeve 1 and the pawl spring 2 are separately disposed, the pawl spring 2 is relatively suitable for being fixed to the metal sleeve 1 by friction force due to structural limitation, and the pawl spring 2 is thin, so that the pawl spring 2 is only fixed to the accommodating cavity 3 of the metal sleeve 1 by using elasticity of the pawl spring 2 rather than by using rigidity of the metal sleeve 1, and sufficient pressure is generated on the pawl spring 2 to ensure that the pawl spring 2 is fixed firmly. Therefore, the claw spring 2 of the present embodiment is directly assembled in the cavity 3, and the supporting portion 4 of the claw spring 2 is in interference fit with the inner wall of the cavity 3, so that sufficient friction force is generated on the supporting portion 4 by the inner wall of the cavity 3, and a surface interference in a hard interference is formed between the inner wall of the cavity 3 and the supporting portion 4, the inner wall of the cavity 3 can generate a forward force of several tens of newtons on the supporting portion 4, so that the supporting portion 4 in the direction of fig. 4 tends to contract toward a central point (i.e. the central point of the nip), and further the plurality of spring pieces 6 also tend to contract, when being connected with an external connection terminal, the claw spring 2 of the present embodiment can firmly clamp the external connection terminal in addition to the elastic clamping effect of the spring pieces 6 and the fixing effect of the forward force generated by the hard interference, so that the claw spring 2 of the present embodiment can better fix the external connection terminal, and can effectively improve the stability of electrical contact, therefore, the metal sleeve 1 and the pawl spring 2 of the present embodiment do not need to adopt a metal plating layer with better conductivity to improve the electrical contact performance, because the pawl spring 2 of the present embodiment is stable enough with the external connection terminal, and the production cost of the present embodiment can be reduced.
Further, in the metal connection terminal provided by this embodiment, as shown in the direction shown in fig. 6, the support portion 4 is assembled at the cavity opening of the cavity 3, the clamping portion is located between the cavity opening and the cavity bottom of the cavity 3, that is, a shape similar to an inverted cone is formed between the plurality of elastic pieces 6, the clip opening 7 with a smaller space is located below, the external connector enters from the cavity opening of the cavity 3 with a larger space, and then is inserted into the clip opening 7, so that the external connection terminal is more easily inserted into the clip opening 7.
In the metal connection terminal provided by this embodiment, as shown in fig. 2, the number of the elastic pieces 6 is six, and the six elastic pieces 6 are arranged at equal intervals. Specifically, six shell fragment 6 of claw spring 2 design can guarantee shell fragment 6 and external connection terminal area of contact, reduces contact resistance reinforcing contact stability to the interference evenly distributed of claw spring 2 and metal sleeve 1 of this embodiment makes shell fragment 6 more reliable with external connection terminal's electric contact, thereby effectively improves the stability of claw spring 2 and external connection terminal's electric contact.
In the metal connection terminal provided by this embodiment, as shown in fig. 3, a cross-sectional area of an end of the elastic sheet 6 connected to the supporting portion 4 is larger than a cross-sectional area of an end of the elastic sheet 6 located at the nip 7.
Specifically, as shown in the direction of fig. 3, the horizontal cross-sectional area of the elastic sheet 6 gradually decreases from bottom to top, the bottom of the elastic sheet 6 is wide, and the contact point with the external connection terminal is narrow, so that the problem of stress concentration when the external connection terminal is plugged and unplugged is avoided, and the plugging and unplugging resistance is increased.
In the metal connection terminal provided in this embodiment, as shown in fig. 2 and 5, the supporting portion 4 is annular; the accommodating cavity 3 comprises an assembly cavity 8 and a bottom cavity 9 which are communicated with each other, the pawl spring 2 is installed in the assembly cavity 8, the assembly cavity 8 is cylindrical, and the bottom cavity 9 is conical.
Specifically, the assembly cavity 8 and the supporting part 4 are both arranged in a cylindrical shape, so that the contact surface between the inner wall of the assembly cavity 8 and the outer wall of the supporting part 4 can be increased, and the generation of sufficient positive force in hard interference is ensured. And the bottom cavity 9 is formed in an inverted cone shape as shown in fig. 5, and the tip of the inverted cone can be brought into better contact with the external connection terminal after the external connection terminal is inserted.
In the metal connection terminal provided by this embodiment, as shown in fig. 1, the outer wall of the metal sleeve 1 is provided with a convex rib 10 and a convex boss 11.
Specifically, when the metal connection terminal of the present embodiment is assembled into the connector, it may be interfered with the inner wall of the mounting groove for fitting the metal sleeve 1 of the connector by the rib 10, thereby fixing the metal sleeve 1. And the boss 11 can position the installation position of the metal sleeve 1, so that the assembly is convenient.
Example two:
in the metal connection terminal provided in this embodiment, as shown in fig. 7, the difference between this embodiment and the first embodiment is that the assembling direction of the pawl spring 2 is opposite to that of the first embodiment, the clamping opening 7 of the pawl spring 2 is located at the cavity opening of the housing 3, and the supporting portion 4 is located below the clamping opening 7, and this assembling manner can fix the external connection terminal.
Although the present invention has been described with reference to the above preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (9)
1. A metal connection terminal characterized in that: the clamping device comprises a metal sleeve and a pawl spring, wherein the pawl spring is used for clamping an external connecting terminal, the metal sleeve is provided with a containing cavity, and the pawl spring is assembled in the containing cavity; the pawl spring comprises a supporting part and a clamping part connected with the supporting part, and the periphery of the supporting part is in interference fit with the metal sleeve; the clamping part comprises a plurality of elastic sheets arranged at intervals, one end of each elastic sheet is fixed on the supporting part, a plurality of clamping openings are formed between the other ends of the elastic sheets, and the clamping openings are used for assembling external connecting terminals.
2. A metal connecting terminal according to claim 1, characterized in that: the supporting part is annular.
3. A metal connecting terminal according to claim 1, characterized in that: the supporting part is assembled at the cavity opening of the containing cavity, and the clamping part is positioned between the cavity opening of the containing cavity and the cavity bottom.
4. A metal connecting terminal according to claim 1, characterized in that: the clamping opening of the clamping portion is located at the cavity opening of the containing cavity, and the supporting portion is located between the cavity opening of the containing cavity and the cavity bottom.
5. A metal connecting terminal according to claim 1, characterized in that: the shell fragment is provided with six, six the equidistant setting of shell fragment.
6. A metal connecting terminal according to claim 1, characterized in that: the cross sectional area of one end of the elastic sheet connected with the supporting part is larger than that of one end of the elastic sheet positioned at the clamping opening.
7. A metal connecting terminal according to claim 1, characterized in that: the holding cavity comprises an assembly cavity and a bottom cavity which are communicated with each other, the pawl spring is installed in the assembly cavity, the assembly cavity is cylindrical, and the bottom cavity is conical.
8. A metal connecting terminal according to claim 1, characterized in that: the outer wall of the metal sleeve is provided with convex ribs.
9. A metal connecting terminal according to claim 1, characterized in that: and the outer wall of the metal sleeve is convexly provided with a limiting boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121504490.0U CN216488631U (en) | 2021-07-01 | 2021-07-01 | Metal connecting terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121504490.0U CN216488631U (en) | 2021-07-01 | 2021-07-01 | Metal connecting terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216488631U true CN216488631U (en) | 2022-05-10 |
Family
ID=81394876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121504490.0U Active CN216488631U (en) | 2021-07-01 | 2021-07-01 | Metal connecting terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216488631U (en) |
-
2021
- 2021-07-01 CN CN202121504490.0U patent/CN216488631U/en active Active
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