CN220042306U - Crown spring, jack assembly and connector - Google Patents

Abstract

The utility model belongs to the technical field of high-current connectors, and provides a crown spring, a jack assembly and a connector, wherein the crown spring comprises at least one crown spring body, each crown spring body comprises a first end ring, a second end ring and a grid structure connected between the first end ring and the second end ring, the first end ring and the second end ring are all arranged around a preset axis in a surrounding way, and a plurality of convex structures are formed on the outer ring surface of the first end ring and the outer ring surface of the second end ring in a protruding way along the direction far away from the preset axis: the grid structure is provided with a first abutting part and at least one second abutting part, and the grid structure can be elastically deformed in the direction perpendicular to the preset axis, so that the first abutting part can expand towards the direction away from the preset axis, and the second abutting part can contract towards the direction close to the preset axis. The utility model aims to solve the technical problem that in the prior art, unstable connection is easy to generate when a crown spring is connected with the wall of a jack hole.

Description

Crown spring, jack assembly and connector

Technical Field

The utility model belongs to the technical field of high-current connectors, and particularly relates to a crown spring, a jack assembly and a connector.

Background

As known, with the development of the new energy automobile industry, the electric power requirements of an automobile energy storage and discharge system are increasingly greater, and meanwhile, the quality requirements of parts for improving the endurance of the new energy automobile are increasingly higher.

When the design is applied to the contact pin assembly and the jack assembly of the high-current connector, a crown spring is generally arranged in the jack assembly, and the electric connection with the female end plug-in part is realized through the interference of the crown spring and the outer wall of the jack.

In the related art, gaps are easily generated between the crown springs and the walls of the jack holes, so that poor contact is caused, and the connection stability of the contact pin assembly and the jack assembly is affected.

Disclosure of Invention

The utility model aims to provide a crown spring, a jack assembly and a connector, and aims to solve the technical problem that unstable connection is easy to occur when the crown spring is connected with the wall of a jack hole in the prior art.

A first object of the present utility model is to provide a crown spring, including at least one crown spring body, each of the crown spring bodies including a first end ring, a second end ring, and a grid structure connected between the first end ring and the second end ring, the first end ring and the second end ring being disposed around a preset axis, an outer ring surface of the first end ring and an outer ring surface of the second end ring each being formed with a plurality of convex structures protruding in a direction away from the preset axis: the grid structure surrounds the axis of predetermineeing and sets up, the grid structure has first butt portion and at least one second butt portion, just the grid structure can be perpendicular to predetermineeing the axis direction and carry out elastic deformation, makes first butt portion can be kept away from the direction expansion of axis of predetermineeing, and makes the second butt portion can be towards being close to the direction shrink of axis of predetermineeing.

In one embodiment, the protruding structures are columnar, and a plurality of protruding structures are arranged around the preset axis at intervals.

In one embodiment, the wrap angle of the grating structure about the predetermined axis is less than or equal to 360 °.

In one embodiment, the grid structure includes a plurality of grid arms, two ends of each grid arm are respectively connected with the first end ring and the second end ring correspondingly, the plurality of grid arms are annularly arranged around the preset axis array, each grid arm is respectively obliquely extended from two ends to the middle part and connected to form the first abutting part in the annular direction, and in a free state, the first abutting part protrudes outwards from the outer ring surface of the first end ring and the outer ring surface of the second end ring in the direction deviating from the preset axis; the first abutting part and the two ends of the grille arm form the second abutting part respectively.

In one embodiment, the grille arm includes a first arm body connected to the first end ring and a second arm body connected to the second end ring, the first arm body extends obliquely from a connection end of the first end ring along the annular direction, the second arm body extends obliquely from a connection end of the second end ring along the annular direction, and an extension end of the first arm body is connected to an extension end of the second arm body, and forms the first abutting portion with a preset bending angle at a connection position.

In one embodiment, the extension length of the first arm body is equal to the extension length of the second arm body.

In one embodiment, the end of the second end ring away from the grid structure is formed with a flange structure protruding outwards in a direction away from the preset axis.

In one embodiment, the crown spring includes a plurality of crown spring bodies, and the plurality of crown spring bodies are sequentially connected along the preset axis.

A second object of the present utility model is to provide a jack assembly, including a sleeve, a cap, and a crown spring as described in any one of the above, where the sleeve is provided with a jack, the crown spring is installed in the jack, and the first abutting portion abuts against a hole wall of the jack; the barrel cap is connected to an aperture of the receptacle and is capable of abutting the first end ring or the second end ring of the crown spring.

In one embodiment, the outer barrel wall of the sleeve is formed with a first knurled structure by which the sleeve is in interference connection with the barrel cap.

A third object of the present utility model is to provide a connector, including a pin assembly and a jack assembly according to any one of the above, wherein the pin assembly has a plug structure capable of conducting electricity, the plug structure is inserted into the jack of the jack assembly, and the second abutting portion abuts against the plug structure.

Compared with the prior art, the crown spring, the jack assembly and the connector have the beneficial effects that: compared with the prior art, in the crown spring, the jack assembly and the connector, the crown spring can be applied to the high-current connector, the crown spring is protruded outwards on the outer ring surface of the first end ring and the outer ring surface of the second end ring to form a protruding structure, the protruding structure is in abutting fit with the jack assembly, the surface-surface contact mode of the first end ring and the second end ring when being connected with the sleeve and the barrel cap in the jack assembly is changed, the problem that a gap is generated due to the fact that the roundness of the end ring is easy to warp when the surface-surface contact is changed, and poor contact is caused is solved; this crown spring is through setting up protruding structure for form a plurality of electrical contact points between first end ring and second end ring and the external structure, when the crown spring receives extrusion, grid structure to carry out elastic deformation, first end ring and second end ring can carry out inseparable butt through protruding structure and external structure's surface, effectively improve the contact reliability of crown spring in jack subassembly inside, be favorable to improving the overcurrent capacity of connector.

In addition, this crown spring is through forming the first butt portion that can outwards expand and at least one second butt portion that can shrink for this crown spring can reliably carry out the butt with the pore wall of jack and contact pin subassembly when receiving the extrusion, improves the overcurrent capacity of crown spring and whole connector.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the embodiments of the present utility model or the drawings used in the description of the prior art, and it is obvious that the drawings described below are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a crown spring according to an embodiment of the present utility model;

FIG. 2 is an isometric view of FIG. 1;

FIG. 3 is a right side view of FIG. 1;

FIG. 4 is a schematic view of a structure of a sheet of a crown spring before winding according to an embodiment of the present utility model;

FIG. 5 is a right side view of FIG. 4;

FIG. 6 is a schematic diagram II of a crown spring according to an embodiment of the present utility model;

fig. 7 is a schematic structural view III of a crown spring according to an embodiment of the present utility model;

FIG. 8 is a schematic diagram of a jack assembly according to an embodiment of the present utility model;

FIG. 9 is an exploded view of FIG. 8;

FIG. 10 is a schematic view of the hidden cartridge cap of FIG. 8;

FIG. 11 is a partial cross-sectional view of FIG. 8;

FIG. 12 is a cross-sectional view of FIG. 8 in a plane of symmetry;

FIG. 13 is a schematic view showing a state of a crown spring when the crown spring is installed in a jack according to an embodiment of the present utility model;

fig. 14 is a right side view of fig. 13;

FIG. 15 is a second schematic structural view of a jack assembly according to an embodiment of the present utility model;

fig. 16 is a schematic diagram III of a jack assembly according to an embodiment of the present utility model.

Reference numerals illustrate: 1. a crown spring body; 11. a first end ring; 12. a second end ring; 13. a grid structure; 131. a first abutting portion; 132. a second abutting portion; 133. a grille arm; 1331. a first arm body; 1332. a second arm body; 14. a bump structure; 15. a turning structure; 16. a notch; 2. a sleeve; 21. a second knurling structure; 22. a first knurling structure; 23. a jack; 3. a cartridge cap; 4. a jack assembly; 5. a female end connection portion; a. and forming an included angle.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "upward," "vertical," "horizontal," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.

Referring to fig. 1-3, an embodiment of the present utility model provides a crown spring, which includes at least one crown spring body 1, each crown spring body 1 includes a first end ring 11, a second end ring 12, and a grid structure 13 connected between the first end ring 11 and the second end ring 12, the first end ring 11 and the second end ring 12 are all disposed around a preset axis, and a plurality of protruding structures 14 are formed on an outer ring surface of the first end ring 11 and an outer ring surface of the second end ring 12 in a protruding manner along a direction away from the preset axis: the grid structure 13 is disposed around a preset axis, the grid structure 13 has a first abutting portion 131 and at least one second abutting portion 132, and the grid structure 13 can elastically deform in a direction perpendicular to the preset axis, so that the first abutting portion 131 can expand in a direction away from the preset axis, and the second abutting portion 132 can contract in a direction close to the preset axis.

Specifically, the first end ring 11 is looped around a preset axis, and it is understood that the preset axis is the central axis of the first end ring 11; the first end ring 11 may be made of a metallic conductive material.

The second end ring 12 is also looped around a preset axis, which is understood to be the central axis of the second end ring 12, and it is known that the first end ring 11 and the second end ring 12 are coaxially disposed.

The first end ring 11 and the second end ring 12 may be made of plate, the first end ring 11 and the second end ring 12 are all arranged around a preset axis ring to form an annular cylinder, the cross section outline shape of the annular cylinder may be circular or polygonal, and referring to fig. 1, in this embodiment, the first end ring 11 and the second end ring 12 are all arranged around the preset axis ring to be cylindrical.

The outer ring surface of the first end ring 11 is provided with a plurality of protruding structures 14, the protruding heights of the protruding structures 14 are the same, the protruding structures 14 can be arranged in an array mode on the outer ring surface of the first end ring 11, the array mode can be arranged in a circular ring shape around a preset axis, or arranged along a plurality of circular rings around the preset axis, or arranged at intervals in a staggered mode around the preset axis, and the like. The convex end surface of the projection structure 14 is adapted to abut against the wall of the receptacle 23 of the receptacle assembly 4.

In addition, a plurality of protruding structures 14 are also formed on the outer ring surface of the second end ring 12, and the protruding structures 14 can be connected with the hole wall of the jack assembly 4, or the protruding structures 14 on the second end ring 12 can abut against the mounting hole wall of the barrel cap 3 with reference to the following.

The grid structure 13 is connected between the first end ring 11 and the second end ring 12, the grid structure 13 is in a cylindrical shape in appearance, a first abutting portion 131 and a second abutting portion 132 are formed on the grid structure 13, the first abutting portion 131 is used for abutting against the hole wall of the jack assembly 4, and the second abutting portion 132 is used for abutting against the outer surface of the pin assembly, so that the connector can conduct electric conduction communication through the crown spring.

The present grill structure 13 is capable of elastic deformation in a direction perpendicular to a predetermined axis, and it is understood that the grill structure 13 includes a plurality of grill arms 133 formed with gaps and arranged in an array, so that the grill structure 13 is capable of elastic deformation when being pressed. For example, when the crown spring is pressed in the preset axis direction, the height of the crown spring in the preset axis direction may be changed, and at the same time, the first abutting portion 131 may be expanded in a direction away from the preset axis to enable the first abutting portion 131 to be tightly abutted with the jack 23 of the jack assembly 4, and at the same time, the second abutting portion 132 may be contracted in a direction close to the preset axis to enable the second abutting portion 132 to be tightly abutted with the pin assembly.

In addition, one crown spring body 1 may be formed with one or more second abutment portions 132, for example, one crown spring body 1 is formed with two second abutment portions 132 and one first abutment portion 131, the two second abutment portions 132 being located on both sides of the first abutment portion 131, respectively.

In this embodiment, the present crown spring can be applied to a high-current connector, and the present crown spring is convex to form a convex structure 14 on the outer ring surface of the first end ring 11 and the outer ring surface of the second end ring 12, and the convex structure 14 is in abutting fit with the jack assembly 4, so as to change the surface-to-surface contact form when the existing first end ring 11 and the second end ring 12 are connected with the sleeve 2 and the barrel cap 3 in the jack assembly 4, and change the problem that when the surface-to-surface contact is performed, the roundness deviation of the end ring is easy to warp to generate a gap, and further cause poor contact; the crown spring is provided with the bulge structure 14, so that a plurality of electric contact points are formed between the first end ring 11 and the second end ring 12 and the external structure, when the crown spring is extruded and the grid structure 13 is elastically deformed, the first end ring 11 and the second end ring 12 can be tightly abutted against the surface of the external structure through the bulge structure 14, the contact reliability of the crown spring in the jack assembly 4 is effectively improved, and the overcurrent capacity of the connector is improved.

The convex structure 14 can also ensure that under the condition of the same contact force, the positive pressure of the convex structure 14 is large, the corresponding contraction resistance is small, the convex structure 14 can solve the problems that the crown spring is poor in laminating degree with the inner wall of the sleeve 2 and cannot be in surface contact after being rolled, and the purpose that the crown spring has more contact points with the inner wall of the sleeve 2 is achieved; in the same specification, the connector applying the crown spring has stronger electrical performance and temperature rise overload performance. The raised structures 14 also improve the problem of poor electroplating caused by the fit of the crown springs together during barrel plating.

In addition, the first abutting portion 131 capable of expanding outwards and the at least one second abutting portion 132 capable of contracting are formed, so that the crown spring can reliably abut against the hole wall of the insertion hole 23 and the pin assembly when being extruded, and the overcurrent capacity of the crown spring and the whole connector is improved.

Furthermore, the structural design of the crown spring has fewer component parts, simpler manufacturing process and lower cost, and can ensure the stability of electric connection and simultaneously has the advantages of lighter mass and smaller volume.

In one embodiment, referring to fig. 1-3, the protruding structures 14 are columnar, and the protruding structures 14 are arranged around the preset axis at intervals, the protruding structures 14 on the first end ring 11 have the same protruding height, and the protruding structures 14 on the second end ring 12 have the same protruding height.

Specifically, the protruding structure 14 on the first end ring 11 extends outwards along the radial direction of the first end ring 11 to form a cylinder shape, and the extending end surface of the protruding structure 14 may be an arc curved surface, and the arc curved surface is matched with the hole wall of the jack 23, so as to facilitate increasing the contact area between the protruding structure 14 and the hole wall of the jack 23, so as to increase the overcurrent capacity.

The protruding structures 14 on the second end ring 12 extend outwards along the radial direction of the second end ring 12 to form a cylinder shape, and the extending end surfaces of the protruding structures 14 can be arc curved surfaces; referring to fig. 2, when the second end ring 12 is inserted into the mounting hole of the barrel cap 3, the circular arc curved surface of the protruding structure 14 may be matched with the hole wall of the mounting hole, so as to facilitate increasing the contact area between the protruding structure 14 and the hole wall of the mounting hole, so as to increase the overcurrent capability.

In this embodiment, the plurality of protruding structures 14 are disposed around the preset axis, and referring to fig. 2, the plurality of protruding structures 14 are disposed around the preset axis in two annular shapes disposed at intervals along the preset axis, and the protruding structures 14 are disposed at intervals uniformly around the preset axis, and the protruding structures 14 in the two annular shapes may be disposed opposite or in a staggered manner, so that the protruding structures 14 are disposed in an array uniformly on the outer annular surface of the first end ring 11 and the outer annular surface of the second end ring 12.

In one embodiment, as shown with reference to fig. 1-3, the wrap angle of the grid structure 13 about the predetermined axis is less than or equal to 360 °.

When the surrounding angle of the grid structure 13 around the preset axis is equal to 360 degrees, it can be known that the grid structure 13 forms a complete cylinder shape, and the gaps 16 and the gaps are not formed in the circumferential direction, so that the whole grid structure 13 is more stable.

In addition, when the surrounding angle of the grid structure 13 around the preset axis is smaller than 360 °, it is known that the grid structure 13 is formed into a cylindrical shape with the notches 16, and the design of the circumferential notches 16 can expand or contract when the grid structure 13 elastically deforms, so as to play an auxiliary role in buffering the deformation of the grid structure 13, and reduce stress.

In one embodiment, referring to fig. 1 to 5, the grid structure 13 includes a plurality of grid arms 133, two ends of each grid arm 133 are respectively connected with the first end ring 11 and the second end ring 12, the plurality of grid arms 133 are arrayed around a preset axis, each grid arm 133 extends from two ends to the middle in an oblique manner respectively in the annular direction and is connected to form a first abutting portion 131, and in a free state, the first abutting portion 131 protrudes out of an outer ring surface of the first end ring 11 and an outer ring surface of the second end ring 12 in a direction deviating from the preset axis; second abutting portions 132 are formed between the first abutting portions 131 and both ends of the grille arms 133, respectively.

Specifically, the plurality of grill arms 133 are disposed around the preset axis so that the outer shape of the grill structure 13 is cylindrical; the spacing between adjacent grille arms 133 is the same, and the grille arms 133 are arranged in a spaced array around a predetermined axis.

The annular direction refers to a clockwise direction or a counterclockwise direction around a preset axis; for example, in the clockwise circumferential direction, each of the grille arms 133 extends obliquely from the end connected to the first end ring 11 and the end connected to the second end ring 12 toward the middle (or the middle position in the longitudinal direction) of the grille arm 133, and is connected at the extending end to form the first abutting portion 131, and the first abutting portion 131 may be understood as a bent structure, for example, each of the grille arms 133 extends along a "V" shaped track, and the apex position of the "V" track is the first abutting portion 131. As described with reference to fig. 2 and 3, the vertex positions of the "V" -shaped tracks are all oriented identically, i.e., the first abutment portions 131 of the respective grille arms 133 are all bent in the same direction, either clockwise or counterclockwise.

Furthermore, the first abutting portion 131 protrudes from the outer ring surface of the first end ring 11 and the outer ring surface of the second end ring 12 in a direction deviating from the preset axis, that is, the height of the first abutting portion 131 in the direction perpendicular to the preset axis is larger than the radius of the outer ring surface of the first end ring 11 and larger than the radius of the outer ring surface of the second end ring 12, and it is known that, in structural form, the first abutting portion 131 protrudes outside the virtual cylindrical surface formed by the first end ring 11 and the second end ring 12.

In the free state, the height of the first abutting portion 131 protruding out of the outer ring surface of the first end ring 11 and the outer ring surface of the second end ring 12 is 0.5mm-5mm, and optional values include 0.5mm, 1.0mm, 1.5mm, 2mm, 2.5mm, 3mm and the like.

Furthermore, the convex state of the first abutting portion 131 may be gradually convex (or transitionally convex) toward the middle of the grille arm 133 along the direction deviating from the preset axis (or along the direction away from the preset axis) by the end portion of the grille arm 133 connected with the first end ring 11 and the end portion connected with the second end ring 12, so that the first abutting portion 131 is convex on the outer ring surface of the first end ring 11 and the outer ring surface of the second end ring 12.

It can be understood that when the grille structure 13 is elastically deformed, that is, the grille arms 133 are twisted, the first abutting portions 131 are located at intermediate positions in the length direction of the grille arms 133, the first abutting portions 131 are convex, and the two second abutting portions 132 on both sides of the first abutting portions 131 are concave respectively, that is, the two second abutting portions 132 are moved toward directions approaching the preset axis respectively.

In this embodiment, after this crown spring is installed in jack 23 in jack assembly 4, extrude the crown spring at the tip of crown spring for the elastic deformation takes place for the crown spring, and at this moment, the first butt portion 131 of crown spring can expand to closely butt with the inner wall of jack 23, and two second butt portions 132 of crown spring can the indent to closely butt with the outer wall of the contact pin subassembly of pegging graft in jack 23, realize the electric conduction of contact pin subassembly and jack assembly 4, through the design of first butt portion 131 and second butt portion 132, be favorable to increasing the connection, the conduction area between crown spring and jack 23 pore wall and the contact pin subassembly, improve the overcurrent capacity of connector, improve the contact reliability between contact pin subassembly and the jack assembly 4.

In one embodiment, referring to fig. 2 and 4, the grille arm 133 includes a first arm 1331 connected to the first end ring 11 and a second arm 1332 connected to the second end ring 12, the first arm extending obliquely in the circumferential direction from the connection end with the first end ring 11, the second arm extending obliquely in the circumferential direction from the connection end with the second end ring 12, the extension end of the first arm 1331 being connected to the extension end of the second arm 1332 and forming a first abutting portion 131 having a predetermined bending angle at the connection position; the first arm 1331 and the second arm 1332 each have a second contact portion 132.

Specifically, the grid structure 13 is formed by winding a sheet-shaped plate body around a preset axis, the sheet of the grid structure 13 before winding is rectangular, through holes of a V shape are punched on the sheet along the width direction (or length direction) array of the sheet, so that V-shaped grid arms 133 are formed between adjacent through holes, the grid arms 133 are arranged at intervals and in an array along the width direction of the sheet, and it is understood that the V-shaped grid arms 133 comprise a first arm body 1331 and a second arm body 1332 connected to each other on the sheet before winding, and the first arm body 1331 and the second arm body 1332 form a forming included angle a at the connecting end.

The connection portion of the first arm 1331 and the second arm 1332 forms a first abutting portion 131, and the intermediate portion of the length of the first arm 1331 and the second arm 1332 forms a second abutting portion 132; the first arm 1331 and the second arm 1332 have elasticity after the crown spring is wound and molded, and can expand and contract.

The extension length of the first arm 1331 is the same as the extension length of the second arm 1332, and by providing two arms, the contact length of the grille arm 133 can be increased, and the stress resistance and the relaxation force between the grille arm and the contacted part can be ensured. The crown spring can form a hyperboloid winding structure similar to the torsion spring without separate torsion procedures.

Referring to fig. 4, before the grid structure 13 is wound, the first arm 1331 and the second arm 1332 form a forming included angle a at the connecting end in the range of 90 ° -150 °, after the grid structure 13 is wound and formed, the forming included angle a forms a preset bending included angle of space after being deformed and twisted due to elastic deformation of the grid arms 133; in addition, the first arm 1331 and the second arm 1332 are also twisted during winding, so that the first arm 1331 and the second arm 1332 are twisted in an arc shape to form the second contact portion 132 on the first arm 1331 and the second arm 1332. When the contact pin assembly is connected with the jack assembly 4, the first arm 1331 and the second arm 1332 of the crown spring are led in an arc mode, and therefore overcurrent capacity is improved.

The positions of the first arm body 1331 and the second arm body 1332, which are abutted with the pin assemblies, are subjected to rounding treatment, so that the plug contact of the pin assemblies can be softer and smoother, and the service lives of the pin assemblies are prolonged.

In this embodiment, as shown in fig. 12 to 14, when the crown spring is pressed into the jack 23, a pressing force is applied to the end portion of the grid structure 13, the first arm 1331 and the second arm 1332 are respectively twisted, at this time, the first abutting portion 131 expands outwards, i.e. towards the hole wall, so that a strong pressing force is formed between the first abutting portion 131 and the hole wall, the two second abutting portions 132 shrink inwards, i.e. towards the center of the hole, and when the pin assembly is inserted into the jack 23, a large pressing force can be formed between the two second abutting portions 132 and the surface of the pin assembly, and two circles of second abutting portions 132 can be formed between the crown spring and the pin assembly, so that the overcurrent capability of the connector can be increased, and the contact reliability between the pin assembly and the jack assembly 4 can be improved.

In one embodiment, referring to fig. 6 and 7, the end of the second end ring 12 away from the grid structure 13 is convexly formed with a turnover structure 15 toward a direction away from the preset axis; the flange structure 15 extends outwardly in a direction away from the predetermined axis.

Specifically, the turnup structure 15 forms a ring shape in a circumferential direction around a preset axis, and gaps uniformly distributed at intervals are formed in the ring direction of the turnup structure 15, so that the turnup structure 15 forms a plurality of independent blocks or sheets.

It should be noted that, the second end ring 12 is set to be one end of the crown spring inserted into the jack 23 near the hole end of the jack 23 or one end exposed outside the jack 23.

In the present embodiment, the end of the second end ring 12 is convexly provided with the edge turning structure 15, so that the crown spring can be connected with the sleeve 2 or the barrel cap 3 in the jack assembly 4 more firmly, and the reliability and stability of the crown spring connection are enhanced.

In one embodiment, referring to fig. 7, the crown spring includes a plurality of crown spring bodies 1, and the plurality of crown spring bodies 1 are sequentially connected along a predetermined axis.

Specifically, the crown spring body 1 may be provided with a plurality of crown spring bodies 1 coaxially disposed, that is, the plurality of crown spring bodies 1 are all disposed along a preset axis, and the sizes of the plurality of crown spring bodies 1 are the same, so that the first end ring 11 of one crown spring body 1 can be connected with the first end ring 11 or the second end ring 12 of an adjacent crown spring body 1 in a pairing manner. For example, referring to fig. 3, the crown spring includes two crown spring bodies 1.

In this embodiment, the plurality of crown springs 1 are connected, so that the crown spring has the plurality of first abutting portions 131 and the plurality of second abutting portions 132, which can increase the contact area between the crown spring and the wall of the jack 23 and the contact pin assembly, improve the overcurrent capability of the connector, and improve the contact stability between the contact pin assembly and the jack assembly 4.

The embodiment of the utility model also provides a jack assembly 4, referring to fig. 8-10, the jack assembly 4 comprises a sleeve 2, a barrel cap 3 and a crown spring in the embodiment, the sleeve 2 is provided with a jack 23, the crown spring is installed in the jack 23, and a first abutting part 131 abuts against the hole wall of the jack 23; the cartridge cap 3 is connected to the aperture of the receptacle 23 and can abut against the first end ring 11 or the second end ring 12 of the crown spring.

Specifically, the sleeve 2 is cylindrical, the sleeve 2 is provided with a jack 23 along the central axis, the crown spring is inserted into the jack 23 along the preset axis direction, the first end ring 11 can be set to be inserted into the bottom of the jack 23, and the second end ring 12 is positioned at the orifice position of the jack 23 or exposed outside the jack 23.

Referring to fig. 11, the barrel cap 3 is cylindrical, the barrel cap 3 is connected to the hole end of the sleeve 2 and can be fixedly connected with the end of the sleeve 2, and the pin assembly can be inserted into the insertion hole 23 of the sleeve 2 through the through hole in the center of the barrel cap 3; the cartridge cap 3 can form a pressing force on the crown spring so that the first abutment 131 of the crown spring can expand and the second abutment 132 can contract.

In this embodiment, the jack assembly 4 can be applied to a high-current connector, through forming the protruding structure 14 on the outer ring surface of the first end ring 11 and the outer ring surface of the second end ring 12 of the crown spring, the protruding structure 14 is in butt fit with the jack assembly 4, so that a plurality of electrical contact points are formed between the first end ring 11 and the second end ring 12 and the external structure, when the crown spring is extruded and the grille structure 13 is elastically deformed, the first end ring 11 and the second end ring 12 can be in tight butt joint with the surface of the external structure through the protruding structure 14, so that the contact reliability of the crown spring in the jack assembly 4 is effectively improved, and the overcurrent capability of the connector is improved.

In one of the embodiments, referring to fig. 10, the outer cylinder wall of the sleeve 2 is formed with a first knurled structure 22, and the sleeve 2 is interference-connected with the cap 3 through the first knurled structure 22.

Specifically, the first knurling structure 22 is a plurality of strip-shaped protrusions formed on the surface of the sleeve 2, the plurality of strip-shaped protrusions extend along a direction parallel to a preset axis, and the plurality of strip-shaped protrusions are circumferentially arranged around the preset axis at intervals.

In the present embodiment, the first knurled structure 22 is pressed at the end of the sleeve 2, so that the sleeve 2 and the cap 3 are riveted by the first knurled structure 22 to enhance the connection strength between the sleeve 2 and the cap 3.

In addition, as shown in fig. 11, 15 and 16, a second knurling structure 21 may be added to the end of the sleeve 2 away from the cap 3, and the second knurling structure 21 may be riveted to the female end connection portion 5 of the socket assembly 4 to form the socket assembly 4 of different configurations.

The embodiment of the present utility model further provides a connector, as shown in fig. 15 and 16, where the connector includes a pin assembly and the jack assembly 4 in the foregoing embodiment, the pin assembly has a plug structure capable of conducting electricity, the plug structure is inserted into the jack 23 of the jack assembly 4, and the second abutting portion 132 (the grille arms 133 on both sides of the first abutting portion 131) abuts against the plug structure.

Specifically, the pin assembly is formed with a plug structure, which may include a plurality of conductive posts or conductive pins, inserted into the jack 23 of the jack assembly 4 through the plug structure, so that the plug structure in the pin assembly can abut against the second abutment 132 of the crown spring to electrically connect the jack assembly 4 with the pin assembly.

In this embodiment, the present connector may be a heavy current connector, and by setting the crown spring in the above embodiment, the crown spring forms the first abutting portion 131 capable of expanding outwards and the at least one second abutting portion 132 capable of contracting, so that the crown spring can reliably abut against the hole wall of the jack 23 and the contact pin assembly when being extruded, thereby improving the overcurrent capability of the whole connector, ensuring the electrical connection stability of the electrical connector, and simultaneously having the advantages of lighter mass and smaller volume.

The foregoing description of the preferred embodiments of the present utility model has been provided for the purpose of illustrating the general principles of the present utility model and is not to be construed as limiting the scope of the utility model in any way. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model, and other embodiments of the present utility model as will occur to those skilled in the art without the exercise of inventive faculty, are intended to be included within the scope of the present utility model.

Claims (10)

1. The crown spring is characterized by comprising at least one crown spring body, each crown spring body comprises a first end ring, a second end ring and a grid structure connected between the first end ring and the second end ring, the first end ring and the second end ring are all arranged around a preset axis in a surrounding mode, and a plurality of convex structures are formed on the outer ring surface of the first end ring and the outer ring surface of the second end ring in a protruding mode in the direction away from the preset axis: the grid structure surrounds the axis of predetermineeing and sets up, the grid structure has first butt portion and at least one second butt portion, just the grid structure can be perpendicular to predetermineeing the axis direction and carry out elastic deformation, makes first butt portion can be kept away from the direction expansion of axis of predetermineeing, and makes the second butt portion can be towards being close to the direction shrink of axis of predetermineeing.

2. The crown spring of claim 1, wherein the raised structure is cylindrical and a plurality of the raised structures are circumferentially spaced about the predetermined axis.

3. The crown spring of claim 1, wherein the wrap angle of the grille structure about the predetermined axis is less than or equal to 360 °.

4. The crown spring of claim 1, wherein the grille structure includes a plurality of grille arms, both ends of each of the grille arms are respectively connected with the first end ring and the second end ring in correspondence, the plurality of grille arms are arranged around the preset axis array in a ring arrangement direction, each of the grille arms is respectively obliquely extended from both ends to the middle and connected to form the first abutting portion, and in a free state, the first abutting portion protrudes outside an outer ring surface of the first end ring and an outer ring surface of the second end ring in a direction deviating from the preset axis; the first abutting part and the two ends of the grille arm form the second abutting part respectively.

5. The crown spring of claim 4, wherein the grille arm includes a first arm connected to the first end ring and a second arm connected to the second end ring, the first arm extending obliquely in the hoop direction from a connection end to the first end ring, the second arm extending obliquely in the hoop direction from a connection end to the second end ring, the extension end of the first arm being connected to the extension end of the second arm and forming the first abutment having a preset bending angle at a connection location; the first arm body and the second arm body are both provided with the second abutting part.

6. The crown spring of claim 5, wherein the first arm has an extension equal to the extension of the second arm.

7. The crown spring of any one of claims 1-6, wherein an end of the second end ring distal from the lattice structure is outwardly convex with a flange structure directed away from the predetermined axis.

8. The crown spring of any one of claims 1-6, wherein the crown spring includes a plurality of crown spring bodies connected in series along the predetermined axis.

9. A jack assembly, comprising a sleeve, a barrel cap and the crown spring according to any one of claims 1-8, wherein the sleeve is provided with a jack, the crown spring is installed in the jack, and the first abutting part abuts against the hole wall of the jack; the barrel cap is connected to an aperture of the receptacle and is capable of abutting the first end ring or the second end ring of the crown spring.

10. A connector, comprising a pin assembly and the jack assembly of claim 9, wherein the pin assembly has a plug structure capable of conducting electricity, the plug structure is plugged into the jack of the jack assembly, and the second abutting part abuts against the plug structure.