Crown spring

Abstract

The utility model provides a crown spring which comprises a crown spring body, the crown spring body comprises two edgings arranged in parallel in the axial direction, the two edgings are arranged in an end-to-end winding mode along an arc path, a plurality of contact strips arched inwards in an arc mode are arranged between the two edgings at equal intervals, one ends of the edgings extend in the axial direction to be provided with blocking strips, and the other ends of the edgings extend in the axial direction to be provided with clamping grooves. The other end of the edge strip is provided with a containing groove matched with the barrier strip. One end of each of the two edgings of the crown spring is provided with the barrier strip in an extending manner, so that a gap at the end-to-end connection position of the edgings can be effectively shielded, the phenomenon of nesting among the crown springs is effectively avoided, normal production and assembly are guaranteed, and the crown springs are effectively prevented from being damaged due to the matching of the barrier strips and the accommodating grooves, so that the service life of the crown springs is prolonged. According to the utility model, the end-to-end connection parts of the two edge strips of the crown spring are mutually avoided, so that the problems that the crown spring cannot rebound due to a staggered stacking phenomenon, the outer circular surface of the crown spring cannot be completely attached and propped against the inner side wall of the female terminal sleeve after the crown spring is arranged in the female terminal sleeve, and the assembly is not firm are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to a crown spring. Background Art

[0002] A crown spring is a stamped spring commonly used in electrical connectors. Typically made of metal, it possesses unique structure and properties. The crown spring is typically installed within the sleeve of a female terminal, forming the female terminal of the connector. When the male terminal is inserted into the female terminal, the elastic contact strip between the annular ends of the crown spring contacts the outer surface of the male terminal, establishing elastic contact between the male and female terminals and simultaneously achieving electrical or signal connectivity.

[0003] After the existing crown springs are formed, they all have an arc cylindrical structure connected end to end. During production, clamping equipment is usually used to grab and install the crown springs. In order to ensure that the crown springs can be better fixed on the inner wall of the sleeve of the female terminal, the diameter of the crown spring is usually slightly larger than the diameter of the opening of the female terminal plug-in hole. Therefore, during assembly, the clamping equipment is required to squeeze the crown spring to a certain extent, so that the crown spring will collapse and its diameter will be reduced. When the crown spring is installed in the sleeve of the female terminal, it rebounds so that the outer cylindrical surface of the crown spring fits against the inner wall of the sleeve, thereby completing the assembly.

[0004] There is usually a gap at the end of the existing crown spring, which causes the gap between the two crown springs to overlap when the crown spring moves in the vibration plate (such as Figure 2 As shown), it affects the production assembly; and when the clamping equipment grabs and squeezes the crown spring, the crown spring is prone to cross-stacked at the end (as shown Figure 3 As shown), it cannot rebound smoothly, so after the crown spring is installed into the female terminal sleeve, the outer circular surface of the crown spring cannot completely fit against the inner wall of the female terminal sleeve, resulting in an unreliable assembly.

[0005] Therefore, the applicant has made a useful design and found a solution to the above problem. The technical solution to be introduced below was produced in this context. Utility Model Content

[0006] The utility model provides a crown spring to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A crown spring includes a crown spring body, wherein the crown spring body includes two axially parallel side strips, the two side strips being wound end to end along a circular arc path, a plurality of inwardly arcuate contact strips being arranged at equal intervals between the two side strips, a stop strip being axially extended at one end of the side strip, and a receiving groove being formed at the other end of the side strip to cooperate with the stop strip.

[0009] Preferably, the blocking bar is wound along an arc path in the accommodating groove.

[0010] Preferably, there is a gap at the junction of the end and end of the edge strip.

[0011] Beneficial effects

[0012] The above one or more technical solutions in the crown spring provided by the embodiment of the utility model have at least one of the following technical effects:

[0013] Through the above-mentioned technical solution, the utility model extends one end of the two side strips of the crown spring with a baffle, which can effectively block the gap at the junction of the end strips, thereby effectively solving the overlapping phenomenon between the crown springs and ensuring normal production and assembly; and through the cooperation of the baffle and the accommodating groove, the end strips of the two side strips of the crown spring are avoided from each other, effectively solving the staggered and overlapping phenomenon at the junction of the end strips of the crown spring, which leads to the inability to rebound, and thus the outer circular surface of the crown spring cannot completely fit and abut against the inner wall of the female terminal sleeve after the crown spring is installed in the female terminal sleeve, resulting in the problem of unstable assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the overlapping state between two crown springs;

[0016] Figure 3 This is a schematic diagram of the structure of the crown spring in an end-to-end staggered stacked state.

[0017] The corresponding relationship between the labels and component names in the figures is as follows:

[0018] 1. Crown spring body; 2. Side strip; 3. Contact strip; 4. Stop strip; 5. Accommodation groove. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0021] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0022] like Figure 1-3 As shown, it is a structural schematic diagram of a crown spring in a preferred embodiment of the present utility model;

[0023] This embodiment comprises a crown spring body 1 comprising two axially parallel side bars 2, each wound end-to-end along a circular arc. A plurality of inwardly arched contact bars 3 are evenly spaced between the two side bars 2. A stop bar 4 extends axially from one end of each side bar 2, and a receiving groove 5 is defined at the other end of each side bar 2 to accommodate the stop bar 4. The stop bar 4 is wound along an arc within the receiving groove 5, blocking the gap at the end-to-end junction of the side bars 2 and allowing the end-to-end junctions of the two side bars 2 of the crown spring body 1 to avoid each other. This prevents the crown springs from overlapping and interleaving at their end-to-end junction, which can lead to a failure of the spring to rebound. A gap is provided at the end-to-end junction of the side bars 2, providing a collapsible gap when the clamping device squeezes the crown spring.

[0024] The installation, connection or setting method of the crown spring of the present invention are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented.

[0025] Technologies not described in detail in the present invention are all well-known technologies. Those skilled in the art can easily implement the present invention based on understanding this specification, and the contents shown in the drawings are part of this specification.

[0026] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the concept of the present invention, which should be regarded as falling within the scope of protection determined by the claims submitted for the present invention.

Claims

1. A crown spring, comprising a crown spring body (1), characterized in that: The crown spring body (1) comprises two side strips (2) arranged in parallel along the axial direction. The two side strips (2) are wound along a circular arc path. A plurality of inwardly arched contact strips (3) are arranged at equal intervals between the two side strips (2). A stop strip (4) is axially extended at one end of the side strip (2), and a receiving groove (5) is provided at the other end of the side strip (2) to cooperate with the stop strip (4).

2. The crown spring according to claim 1, characterized in that: The blocking bar (4) is wound along an arc path and arranged in the accommodating groove (5).

3. The crown spring according to claim 1, characterized in that: There is a gap at the junction of the end and end of the side strip (2).

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