CN209804958U - Multi-contact member, clamp spring insert sleeve, crown spring and crown spring insert sleeve - Google Patents
Multi-contact member, clamp spring insert sleeve, crown spring and crown spring insert sleeve Download PDFInfo
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- CN209804958U CN209804958U CN201920909059.0U CN201920909059U CN209804958U CN 209804958 U CN209804958 U CN 209804958U CN 201920909059 U CN201920909059 U CN 201920909059U CN 209804958 U CN209804958 U CN 209804958U
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Abstract
The utility model discloses a multi-contact spare, clamp spring plug bush, hat spring and hat spring plug bush, comprising a main body, the main part is equipped with the concave surface, many first gaps and many second gaps have been seted up to the concave surface, first gap is parallel to each other with the second gap, and crisscross the arranging, first gap middle part is equipped with the connecting strip, the connecting strip both ends are equipped with respectively to the crooked shell fragment that sticks up of concave surface. The utility model discloses a proof warp shell fragment shortens effective conducting distance to increased effective conductive cross sectional area, and then reduced contact resistance, in order to realize low-loss high current-carrying, low-loss, the structure comparatively simply does benefit to production simultaneously.
Description
Technical Field
The utility model relates to an electric connector technical field especially relates to a multi-contact spare, clamp spring plug bush, crown spring and crown spring plug bush.
Background
The contact element of the electric connector is a conductive contact terminal used for realizing the connection with a contact pin in the electric connector, and is widely applied to electronic and electrical equipment. However, with the increasing requirements of the market on high current-carrying and low loss of the contact, the contact on the market at present rarely has a contact which meets the requirements of the two aspects.
Chinese patent CN201710845492.8 provides a high current-carrying crown spring terminal, and this terminal is the winding barrel that forms of rectangle piece, the utility model discloses a punching press goes out several groups elasticity cantilever beam and several elasticity simple beam on the rectangle piece to set up the first contact of bulge on the first depressed area of every elasticity cantilever beam on the rectangle piece, set up the second contact of bending on the free end of every elasticity cantilever beam, set up the third contact of bulge on the fixed end, and set up the fourth contact of bulge at the both ends of every elasticity simple beam, the winding barrel's crown spring terminal is become to the rectangle piece. The requirement of high current carrying is basically met.
Combined with contact resistance R (Ω) analysis. The main factors influencing the contact resistance R are: a. effective conductor conducting distance L (m), b resistivity p (omega mm) of conductor2Effective conductive cross section area A (mm) of conductor2)。
The corresponding principle expression is as follows:
Assuming the same material is used as the contact material, i.e. the resistivities ρ are the same; the crown spring terminal is contacted with the top end of the concave surface in the middle of the elastic cantilever beam when being contacted with the contact pin, namely, the contact is in a point multi-point contact mode, which is very common in the conventional crown spring structure, in other words, the relative effective conductive sectional area A is not changed. The corresponding effective conductive distance L is actually 1/2 the length of the resilient cantilever beam. Therefore, when a large current is conducted, the effective conducting distance L of the current is relatively long, and the contact resistance R is increased accordingly. Eventually, a large consumption of electricity will occur.
Meanwhile, the manufacturing process in the technical scheme is relatively complicated, and the production efficiency is greatly influenced.
SUMMERY OF THE UTILITY MODEL
an object of the utility model is to provide a have high current-carrying, low-loss multi-contact to the structure is comparatively simple.
The utility model discloses a technical scheme that multi-contact spare adopted is:
the utility model provides a multi-contact, includes the main part, the main part is equipped with the concave surface, many first gaps and many second gaps have been seted up to the concave surface, first gap and second gap are parallel to each other, and crisscross the arranging, first gap middle part is equipped with the connecting strip, the connecting strip both ends are equipped with respectively to the crooked shell fragment that sticks up of concave surface.
Preferably, the ends of the raised elastic pieces at the two ends of the same connecting strip are respectively folded towards the two ends of the first gap.
Preferably, the ends of the warping elastic pieces at the two ends of the same connecting strip are respectively folded towards the middle of the first gap.
Preferably, the end of the raising elastic sheet is provided with a bending part, and the bending part is bent towards the connecting strip.
Preferably, the end of the second gap is provided with an auxiliary elastic sheet, the auxiliary elastic sheet is in a V shape, the middle of the auxiliary elastic sheet is folded to a convex surface opposite to the concave surface, and the other end of the auxiliary elastic sheet passes through the second gap to expose the concave surface.
The technical scheme also provides a clamp spring, which comprises two multi-contact elements and a connecting sheet, wherein the connecting sheet is fixed with the main bodies of the two multi-contact elements respectively, the convex surfaces of the two multi-contact elements are opposite, the first gap is parallel to the connecting sheet, the edge of the concave surface of the main body is provided with a convex limiting strip, and the limiting strip is perpendicular to the first gap.
This technical scheme still provides a press from both sides spring plug bush, including first external member, first external member includes annular fixed cover, still includes as aforementioned press from both sides the spring, main part, the shell fragment of warping up and link up the piece and attach in fixed cover inner wall, the fixed cover end fixing of spacing joint.
The technical scheme also provides the crown spring which comprises the multi-contact element, wherein the multi-contact element is curled into a crown spring body with an annular structure, and the concave surface is the outer wall of the crown spring body.
Preferably, one end of the crown spring body is provided with sawtooth lines.
This technical scheme still provides a hat spring plug bush, including the second external member, the circular slot has been seted up to second external member one end, the annular groove has been seted up to the circular slot lateral wall, still include as aforementioned hat spring, in the recess was arranged in to the hat spring, hat spring tip respectively with the contact of recess lateral wall, the main part with rise the contact of perk shell fragment and recess bottom.
The utility model discloses a beneficial effect of multi-contact is: the main part is equipped with the concave surface, and many first gaps and many second gaps have been seted up to the concave surface, and first gap is parallel to each other with the second gap, and crisscross the arranging, and first gap middle part is equipped with the connecting strip, and the connecting strip both ends are equipped with respectively to the crooked shell fragment of raising up of concave surface. The contact element is placed in a matched external member, when an external plug-in is inserted, the plug-in is in top contact with a convex surface of the main body opposite to the concave surface, so that the plug-in is in contact with a connecting strip arranged in the middle of the first gap, current is conducted through the plurality of warping elastic sheets to top contact with the inner wall of the external member, and at the moment, the plurality of warping elastic sheets increase the effective conductive sectional area A in a multi-contact mode; meanwhile, the effective conducting distance L is actually the length of a short warping elastic sheet, namely the effective conducting distance L is reduced; when the same material is used as the contact material, the resistivities ρ are the same. The contact resistance R is reduced, and the electric loss is reduced finally. Meanwhile, the contact element in the technical scheme has a simple structure, and the production efficiency is greatly improved.
drawings
Fig. 1 is a schematic structural diagram of a multi-contact according to an embodiment of the present invention.
Fig. 2 is a top view of a multi-contact in accordance with an embodiment of the present invention.
Fig. 3 is an enlarged view of a region a of a multi-contact according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a two-contact multi-contact according to an embodiment of the present invention.
fig. 5 is a top view of a two-contact multi-contact according to an embodiment of the present invention.
Fig. 6 is an enlarged view of the second multi-contact B region according to the embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a three-clamp spring according to an embodiment of the present invention.
Fig. 8 is a side view of a triple clamp spring according to an embodiment of the present invention.
Fig. 9 is a schematic structural diagram of a four-clamp spring according to an embodiment of the present invention.
Fig. 10 is a side view of a four-clamp spring in accordance with an embodiment of the present invention.
fig. 11 is a schematic structural view of a five-clamp spring insert sleeve according to an embodiment of the present invention.
Fig. 12 is an exploded view of a five-clamp spring insert according to an embodiment of the present invention.
Fig. 13 is a schematic structural diagram of a six-crown spring according to an embodiment of the present invention.
Fig. 14 is a schematic structural diagram of the seven crown springs according to the embodiment of the present invention in the expanded state.
Fig. 15 is a schematic structural diagram of a seven-crown spring according to an embodiment of the present invention.
Fig. 16 is an exploded view of an eight crown spring insert according to an embodiment of the present invention.
Fig. 17 is a sectional view of an eight crown spring insert according to an embodiment of the present invention.
Detailed Description
the invention will be further elucidated and described with reference to the following embodiments and drawings in which:
The first embodiment is as follows:
Referring to fig. 1-3, a multi-contact includes a body 110.
the main body 110 is provided with a concave surface 111, the concave surface 111 is provided with a plurality of first gaps 1111 and a plurality of second gaps 1112, the first gaps 1111 and the second gaps 1112 are parallel to each other and are arranged in a staggered manner, the middle portion of the first gaps 1111 is provided with a connecting bar 1113, and two ends of the connecting bar 1113 are respectively provided with a tilting elastic sheet 1114 bending towards the concave surface 111. The ends of the raised resilient pieces 1114 at the two ends of the same connecting strip 1111 are folded towards the two ends of the first slot 1111, respectively.
when an external plug-in is inserted, the plug-in is pressed against the convex surface of the main body 110 opposite to the concave surface 111, so that the plug-in is contacted with the connecting strip 1113 arranged in the middle of the first gap 1111, current is conducted through the plurality of tilting elastic sheets 1114 to press against the inner wall of the sleeve, and at the moment, the plurality of tilting elastic sheets 1113 increase the effective conductive sectional area A in a multi-contact mode; meanwhile, the effective conducting distance L is actually the length of the short raised elastic sheet 1114, namely the effective conducting distance L is reduced; the high current is conducted in a state where the same material is used as the contact material, that is, the resistivities ρ are the same. The contact resistance R is reduced, and the electric loss is reduced finally.
Meanwhile, the contact in the present embodiment is simple in structure. The manufacturing process mainly comprises the following steps: punching, tearing and bending. The middle of the first gap 1111 and the connecting bar 1113 are integrated, the two ends of the connecting bar 1113 are punched, the warping elastic sheet 1114 with the specified size is torn, and finally the warping elastic sheet 1114 with the specified size is bent towards the end of the first gap 1111 to obtain the contact in the embodiment. The process is simple, and the production efficiency is greatly improved.
Example two:
Referring to fig. 4 and 5, on the basis of the first embodiment, the tilting direction of the end of the tilting elastic piece 2114 is changed, that is, the end portions of the tilting elastic pieces 2114 at the two ends of the same connecting bar 2113 are respectively folded toward the middle of the first gap 2111. The spatial position of the lifting shrapnel 2114 in the embodiment is relatively centered, and the distance from the middle of the concave surface 211 to the inner wall of the plug bush is relatively large, so that the deformation distance of the lifting shrapnel 2114 in the embodiment is relatively long, namely, enough space is provided for elastic deformation, the deformation performance is enabled, and the rebound resilience is obviously improved. When the external plug-in is inserted, the plug-in extrudes the raised elastic sheet 2114 to generate larger deformation, so that the plug-in can be inserted smoothly; the deformation distance of the lifting shrapnel 2114 in the embodiment is longer, so that the plug-in unit is extruded by stronger resilience, and therefore, the plug-in unit, the lifting shrapnel and the inner wall of the plug bush are closely abutted. The stability of the whole contact relation is well guaranteed. Meanwhile, the raised elastic sheet 2114 can be restored to a natural state after the plug-in unit is pulled out by combining the strong rebound resilience of the raised elastic sheet 2114. The service life of the multi-contact is prolonged.
referring to fig. 6, preferably, the end of the lifting spring 2114 is provided with a bent portion 21141, and the bent portion 21141 is bent toward the connecting bar 2113. The end part of the raised elastic sheet 2114 is prevented from contacting and rubbing with the inner wall of the plug bush. When the plug-in is inserted, the bending part 21141 of the raised elastic sheet 2114 slides and rubs with the inner wall of the plug bush by the cambered surface, so that the plug-in is inserted more smoothly.
Preferably, an auxiliary spring 2116 is disposed at an end of the second gap 2112, the auxiliary spring 2116 is in a "V" shape, a middle portion of the auxiliary spring 2116 is folded toward a convex surface (not labeled in the drawing) opposite to the concave surface 211, and the other end of the auxiliary spring 2116 passes through the second gap 2112 and exposes out of the concave surface 211.
The middle part of the auxiliary spring plate 2116 is pressed against by the external plug-in, and the inner wall of the sleeve is pressed against by the other end part of the auxiliary spring plate 2116, so that the effective conductive sectional area A is increased, and the contact resistance R is reduced in an auxiliary manner.
Example three:
Referring to fig. 7 and 8, the present embodiment further provides a clamp spring, which includes two multi-contact contacts and a connecting tab 320 as described above, the connecting tab 320 is fixed to the main body 310 of the two multi-contact contacts respectively, the convex surfaces of the two multi-contact contacts are opposite to each other, the first gap 3111 is parallel to the connecting tab 320, the edge of the concave surface 311 of the main body 310 is provided with a convex limiting strip 3116, and the limiting strip 3116 is perpendicular to the first gap 3111.
The clamp spring structure in the embodiment is further optimized to be a double-sided structure on the basis of the first embodiment, the contact plug-in is clamped by the two multi-contact pieces, the effective conductive sectional area A is increased by double the contact area, and the purpose of reducing the contact resistance R is further achieved.
The clamp spring in this embodiment is adapted to the insert of the sheet structure.
example four:
Referring to fig. 9 and 10, the present embodiment further provides a clamp spring, which includes two multi-contact contacts and a connecting tab 420 as described above, the connecting tab 420 is fixed to the main body 410 of the two multi-contact contacts respectively, the convex surfaces of the two multi-contact contacts are opposite to each other, the first slit 4111 is parallel to the connecting tab 420, the edge of the concave surface 411 of the main body 410 is provided with a convex limiting bar 4116, and the limiting bar 4116 is perpendicular to the first slit 4111.
The clamp spring structure in the embodiment is further optimized to be a double-sided structure on the basis of the second embodiment, the contact plug-in is clamped by the two multi-contact pieces, the effective conductive sectional area A is increased by double the contact area, and the purpose of reducing the contact resistance R is further achieved.
The clamp spring in this embodiment is adapted to the insert of the sheet structure.
Example five:
Referring to fig. 11 and 12, on the basis of the third and fourth embodiments, the present embodiment further provides a spring clamping sleeve structure for further application.
The particular clamp spring insert includes a first sleeve 530. The first sleeve 530 includes an annular fixing sleeve 531 and a clamping spring as described above, the main body 510, the warping spring plate 5114 and the connecting plate 520 are attached to the inner wall of the fixing sleeve 531, and the limiting bar 5116 is clamped and fixed to the end of the fixing sleeve 531.
The specific installation process is as follows:
Firstly, extruding two end parts of a clamp spring; then the clamping spring is laterally inserted into the fixing sleeve 531 until the limiting strip 5116 is exposed out of the fixing sleeve 531; the clamping spring is restored to be original when the force for extruding the two ends of the clamping spring is released, the main body 510, the warping elastic sheet 5114 and the connecting sheet 520 are attached to the inner wall of the fixing sleeve 531, and the limiting strip 5116 is clamped and fixed at the end of the fixing sleeve 531.
When an external plug-in is inserted, the external plug-in is firstly contacted with the convex surface of the clamping spring, the convex surface of the clamping spring is extruded towards the concave surface direction along with the insertion of the plug-in, at the moment, two end parts of the warping elastic sheet 5114 respectively push against the inner wall of the fixing sleeve 531, and the warping elastic sheet 5114 is compressed to generate elastic deformation. When the plug-in unit is completely inserted, the warping resilient sheet 5114 has its own resilience to tightly abut against the plug-in unit and the inner wall of the fixing sleeve 531 to achieve conduction.
Preferably, the clamp spring of the fourth embodiment is used as the contact member in the present embodiment, so that the contact effect of the clamp spring plug bush can be improved.
Example six:
Referring to fig. 13, in addition to the first embodiment, the present embodiment further provides a crown spring including the multi-contact as described above. The multi-contact of the first embodiment is curled into a ring-shaped crown spring 640, and the concave surface 611 is an outer wall of the crown spring 640.
Preferably, one end of the crown spring body 640 is provided with a sawtooth pattern 641. So as to solve the problem of poor contact caused by the uneven contact end surface.
Example seven:
Referring to fig. 14 and 15, in addition to the second embodiment, the present embodiment further provides a crown spring including the multi-contact as described above. The multi-contact of the second embodiment is rolled into a crown spring body 740 with a ring structure, and the concave surface 711 is an outer wall of the crown spring body 740.
preferably, one end of the crown spring body 740 is provided with a sawtooth grain 741. So as to solve the problem of poor contact caused by the uneven contact end surface.
Example eight:
Referring to fig. 16 and 17, on the basis of the sixth embodiment and the seventh embodiment, the present embodiment further provides a crown spring sleeve structure as a further application.
The particular crown spring insert includes a second sleeve 850. One end of the second sleeve 850 is provided with a circular groove 851, the side wall of the circular groove 851 is provided with an annular groove 8511, and the second sleeve further comprises a crown spring as described above, the crown spring is arranged in the groove 8511, the end part of the crown spring is respectively contacted with the side wall of the groove 8511, and the main body 810 and the raised elastic sheet 8114 are contacted with the bottom of the groove 8511.
the specific installation process is as follows:
Firstly, curling a crown spring structure into an annular structure in end-to-end contact; the crown spring in this state is inserted into the circular groove 851; the force pressing the crown spring is released, the crown spring expands immediately, and the main body 810 and the raised elastic sheet 8114 are in contact with the bottom of the groove 8511.
When an external plug-in is inserted, the plug-in is firstly contacted with the convex surface of the crown spring, the convex surface of the crown spring is extruded towards the concave surface direction along with the penetration of the plug-in, the two end parts of the warping elastic sheet 8114 respectively push against the bottom of the groove 8511, and the warping elastic sheet 8114 is compressed to generate elastic deformation. When the insert is fully inserted, the resilience of the raised spring 8114 itself tightly pushes against the insert and the bottom of the groove 8511 to achieve conduction.
Preferably, the crown spring of the seventh embodiment is used as the contact member in this embodiment, so that the contact effect of the crown spring socket can be improved.
Preferably, the sawtooth pattern 841 of the crown spring body 840 is arranged at one end far away from the notch of the circular groove 851. The end of the sawtooth pattern 841 in this embodiment is a flat end surface to contact the side wall of the groove 8511 with a plurality of end surfaces, which can improve the effective conductive sectional area a, reduce the contact resistance R, and further reduce the loss.
The utility model provides a multi-contact, main part are equipped with the concave surface, and many first gaps and many second gaps have been seted up to the concave surface, and first gap is parallel to each other with the second gap, and crisscross the arranging, and first gap middle part is equipped with the connecting strip, and the connecting strip both ends are equipped with respectively to the crooked shell fragment of raising up of concave surface. The contact element is placed in a matched external member, when an external plug-in is inserted, the plug-in is in top contact with a convex surface of the main body opposite to the concave surface, so that the plug-in is in contact with a connecting strip arranged in the middle of the first gap, current is conducted through the plurality of warping elastic sheets to top contact with the inner wall of the external member, and at the moment, the plurality of warping elastic sheets increase the effective conductive sectional area A in a multi-contact mode; meanwhile, the effective conducting distance L is actually the length of a short warping elastic sheet, namely the effective conducting distance L is reduced; when the same material is used as the contact material, the resistivities ρ are the same. The contact resistance R is reduced, and the electric loss is reduced finally. Meanwhile, the contact element in the technical scheme has a simple structure, and the production efficiency is greatly improved.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. the utility model provides a multi-contact spare, its characterized in that, includes the main part, the main part is equipped with the concave surface, many first gaps and many second gaps have been seted up to the concave surface, first gap and second gap are parallel to each other, and crisscross the arranging, first gap middle part is equipped with the connecting strip, the connecting strip both ends are equipped with respectively to the crooked shell fragment that sticks up of concave surface.
2. The multi-contact of claim 1, wherein the ends of the raised resilient tabs at both ends of the same connecting strip are folded toward both ends of the first slit, respectively.
3. The multi-contact of claim 1, wherein the ends of the raised resilient tabs at both ends of the same connecting strip are folded toward the middle of the first slit.
4. The multi-contact of claim 3, wherein the raised leaf spring has a bent portion at an end thereof, and the bent portion is bent toward the connecting strip.
5. The multi-contact of any one of claims 3 or 4, wherein the end of the second slit is provided with an auxiliary spring, the auxiliary spring is in a shape of "V", the middle of the auxiliary spring is folded to a convex surface opposite to the concave surface, and the other end of the auxiliary spring passes through the second slit to expose the concave surface.
6. A clamp spring comprising two multi-contact contacts according to any one of claims 1 to 5 and an engaging piece, wherein the engaging piece is fixed to a main body of each of the two multi-contact contacts, a convex surface of each of the two multi-contact contacts is opposed to a convex surface of each of the two multi-contact contacts, the first slit is parallel to the engaging piece, and a convex stopper is provided on an edge of the concave surface of the main body, and the stopper is perpendicular to the first slit.
7. A clamping spring plug bush comprises a first sleeve piece, wherein the first sleeve piece comprises an annular fixing sleeve, and is characterized by further comprising a clamping spring as claimed in claim 6, the main body, the warping elastic sheet and the connecting sheet are attached to the inner wall of the fixing sleeve, and the limiting strip is clamped with the end of the fixing sleeve to be fixed.
8. A crown spring comprising the multi-contact member according to any one of claims 1 to 4, wherein the multi-contact member is rolled into a crown spring body having a ring-shaped configuration, and the concave surface is an outer wall of the crown spring body.
9. The crown spring according to claim 8, wherein an end of said crown spring body is provided with serrations.
10. A crown spring plug bush comprises a second sleeve, wherein one end of the second sleeve is provided with a circular groove, and the side wall of the circular groove is provided with an annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920909059.0U CN209804958U (en) | 2019-06-17 | 2019-06-17 | Multi-contact member, clamp spring insert sleeve, crown spring and crown spring insert sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920909059.0U CN209804958U (en) | 2019-06-17 | 2019-06-17 | Multi-contact member, clamp spring insert sleeve, crown spring and crown spring insert sleeve |
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| Publication Number | Publication Date |
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| CN209804958U true CN209804958U (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920909059.0U Active CN209804958U (en) | 2019-06-17 | 2019-06-17 | Multi-contact member, clamp spring insert sleeve, crown spring and crown spring insert sleeve |
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| CN (1) | CN209804958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110364855A (en) * | 2019-06-17 | 2019-10-22 | 深圳尼索科连接技术有限公司 | Multi-contact contact, folder spring, folder spring plug bush, hat spring are come of age spring plug bush |
-
2019
- 2019-06-17 CN CN201920909059.0U patent/CN209804958U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110364855A (en) * | 2019-06-17 | 2019-10-22 | 深圳尼索科连接技术有限公司 | Multi-contact contact, folder spring, folder spring plug bush, hat spring are come of age spring plug bush |
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