Power connection terminal of electric connector and crown spring of power connection terminal

Abstract

The utility model relates to a power connection terminal of an electric connector and a crown spring thereof, which are mainly characterized in that the crown spring is arranged in the power connection terminal of the electric connector, a plurality of reeds are arranged between an upper ring and a lower ring of the crown spring, and each reed is concave inwards at a height towards the axis direction of the crown spring to form a contact part on the inner side. According to the electric connector, the height of the crown spring is increased, a waist part with the outer diameter shrunk inwards is formed at the height of the crown spring, a hoop is arranged at the waist part, the hoop is an annular body with a notch, and a binding effect is generated at the waist part of the crown spring, so that contact parts on the inner sides of the reeds are reinforced, and the reeds can be effectively prevented from being damaged due to overexertion when the electric connector is plugged and unplugged.

Description

Technical Field

[0001] The utility model relates to a power connection terminal and a crown spring of an electrical connector, in particular to a crown spring with a reinforcement structure for protection during insertion and extraction. Background Art

[0002] As Figure 9 shown, there is a conventional charging connector, which mainly has more than one power connection terminal 80 on a base 70. One end of the power connection terminal 80 is hollow to form a jack 81 for a male probe (not shown in the figure) on a corresponding connector to insert. To ensure a reliable electrical connection between the power connection terminal 80 and the inserted male probe, a crown spring 90 is electrically connected in the jack 81 of the power connection terminal 80.

[0003] Please refer to Figure 10 shown, the crown spring 90 includes an upper ring 91, a lower ring 92 and a plurality of spring pieces 93 with two ends respectively connected to the upper ring 91 and the lower ring 92. The upper ring 91 and the lower ring 92 are in a C-shaped ring. Each spring piece 93 is concave inward in the axial direction to form a contact part 930 for making multi-point contact with the inserted male probe, so as to ensure a reliable electrical connection.

[0004] Still refer to Figure 9 shown. When the male probe is inserted into the crown spring 90, each spring piece 93 is expanded outward. Subsequently, the contact part 930 of each spring piece 93 contacts the male probe. If the insertion angle of the male probe is deviated or the force applied is excessive, the spring piece 93 may be impacted and damaged.

[0005] As can be seen from the above, after the existing electrical connector is inserted and extracted, if the force is applied improperly or excessively, the crown spring inside it may be damaged due to the impact of the male probe of the corresponding connector, which may further affect the power transmission. Therefore, it needs to be further reviewed and a feasible solution should be sought. Summary of the Utility Model

[0006] Therefore, the main purpose of the utility model is to provide a power connection terminal and a crown spring of an electrical connector, which avoid damage to the crown spring caused by excessive impact during the insertion and extraction of the electrical connector by providing a reinforcement structure on the crown spring.

[0007] A main technical means to achieve the foregoing purpose is to make the aforementioned crown spring include an upper ring, a lower ring and a plurality of spring pieces with two ends respectively connected to the upper ring and the lower ring;

[0008] Each spring piece is concave inward in the axial direction at a certain height to respectively form a contact part on the inner side and jointly form a waist part on the outer side, and a beam hoop is provided at the waist part;

[0009] The beam hoop is an annular body with an opening, the inner diameter of which is equal to or smaller than the outer diameter of the waist, and the opening is less than 180 degrees.

[0010] When the aforementioned crown spring is installed on the power receiving terminal of a charging connector, during charging, a male terminal probe will correspondingly insert into the power receiving terminal and form electrical contact with the crown spring inside the power receiving terminal. Since the beam hoop is provided at the waist of the crown spring, the beam hoop directly strengthens and protects the contact part on the inner side of the waist. When the insertion angle of the male terminal probe deviates or excessive force is applied, due to the above-mentioned reinforcement and protection mechanism, it can effectively ensure that the reed of the crown spring will not be distorted due to abnormal insertion actions, thereby avoiding damage to the crown spring. Description of the Drawings

[0011] Figure 1 Is a perspective view of the present utility model.

[0012] Figure 2 Is an exploded view of the present utility model.

[0013] Figure 3 Is a plan view of the present utility model.

[0014] Figure 4 Is a front sectional view of the present utility model.

[0015] Figure 5 Is a top sectional view of the present utility model.

[0016] Figure 6 Is a plan view of the beam ring of the present utility model.

[0017] Figure 7 Is a perspective view of the present utility model installed inside the power receiving terminal.

[0018] Figure 8 Is a sectional view of the present utility model installed inside the power receiving terminal.

[0019] Figure 9 Is a sectional view of an existing charging connector.

[0020] Figure 10 Is a perspective view of the crown spring installed inside an existing charging connector. Detailed Description of the Preferred Embodiment

[0021] Regarding a preferred embodiment of the present utility model, please refer to Figures 1 to 4 As shown, it includes a crown spring 10 and a beam hoop 20; the crown spring 10 includes an upper ring 11, a lower ring 12, and a plurality of reeds 13 connected to the upper ring 11 and the lower ring 12 at both ends respectively; wherein

[0022] In this embodiment, the upper ring 11 and the lower ring 12 each have an opening and are in a C-shaped ring when viewed from above, and the openings are at the same angle. Moreover, the upper ring 11 and the lower ring 12 are opposite to each other with a spacing. Each of the reed pieces 13 is arranged at intervals between the upper ring 11 and the lower ring 12; the actual length of each reed piece 13 is greater than the spacing between the upper ring 11 and the lower ring 12 described above, that is, each reed piece 13 is in a bent or curved state. Further, each reed piece 13 is recessed inward in the axial direction of the upper ring 11 and the lower ring 12 to form a contact portion 130, so that a waist portion 100 with a reduced outer diameter is formed at the outer portion of the crown spring 10 corresponding to the contact portion 130 of each reed piece 13, and the binding hoop 20 is sleeved at the waist portion 100.

[0023] Please refer to Figure 5 、 Figure 6 As shown, the binding hoop 20 has an opening 21 and is a C-shaped ring body. The inner diameter of the binding hoop 20 is less than or equal to the outer diameter of the waist portion 100 described above, so as to form a constricting or reinforcing effect at the waist portion 100. When the inner diameter of the binding hoop 20 is less than the outer diameter of the waist portion 100, the binding hoop 20 forms a constricting effect on the waist portion 100. When the inner diameter of the binding hoop 20 is equal to the outer diameter of the waist portion 100, the binding hoop 20 is adaptively sleeved at the waist portion 100 and reinforces the contact portion 130 inside the waist portion 100. Whether the binding hoop 20 constricts or is sleeved on the waist portion 100 of the crown spring 10, it can protect the reed pieces 13 and effectively prevent damage when encountering abnormal impacts. To achieve the above effects, the opening angle 21 of the binding hoop 20 is less than 180 degrees, preferably 100 degrees. Another implementation mode is to make the opening 21 of the binding hoop 20 match the sizes of the openings of the upper ring 11 and the lower ring 12. Still please refer to Figure 3 、 Figure 4 As shown, in this embodiment, the cross-sectional shape of the binding hoop 20 is circular. In addition to being circular, it can also be non-circular, such as triangular or polygonal.

[0024] Please refer to Figure 7 、 Figure 8As shown, the crown spring 10 provided with the binding hoop 20 at its waist 100 is disposed within an electrical connection terminal 30. The upper end of the electrical connection terminal 30 is in the shape of a hollow cylinder with an open top, and an accommodation chamber 31 is formed inside it. The inner diameter of the accommodation chamber 31 matches the outer diameter of the crown spring 10 so as to accommodate the crown spring 10 therein. When the aforementioned electrical connection terminal 30 is installed onto a charging connector (not shown in the figure) and charging is performed, a male-female matching another connector is correspondingly plugged in, and a male terminal probe on the another connector is correspondingly inserted into the electrical connection terminal 30 to form electrical contact with the contact portion 130 of the crown spring 10 provided inside it, so as to transmit the charging current. Since the crown spring 10 is provided with the binding hoop 20 at its waist 100, when the male terminal probe is correspondingly inserted, even if the angle is slightly deviated or excessive force is applied, through the reinforcing effect generated by the binding hoop 20 on the inner contact portion 130 of the crown spring 10 at its waist 100, it can be ensured that the spring piece 13 of the crown spring 10 will not be deformed due to the above abnormal actions, thereby preventing its damage.

[0025] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art, within the scope of the technical solution of the present invention, can make some changes or modifications to the above-disclosed technical content to form equivalent embodiments of equivalent changes. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A crown spring, characterized in that: It includes an upper ring, a lower ring and a plurality of springs connected to the upper ring and the lower ring at two ends thereof; Each spring sheet is concave inwardly toward an axial direction at a height and forms a contact portion at the inner side, and forms a waist at the outer side, and a band hoop is provided at the waist; The tie hoop is a ring-shaped body with an opening, the inner diameter of which is equal to or smaller than the outer diameter of the waist, and the opening is smaller than 180 degrees.

2. The crown spring according to claim 1, characterized in that: The opening angle of the tie band is 100 degrees.

3. The crown spring according to claim 1, characterized in that: The upper ring and the lower ring each have an opening, and the openings are located at the same angle, and the opening of the tie hoop matches the size of the openings of the upper ring and the lower ring.

4. The crown spring according to any one of claims 1 to 3, characterized in that The cross-sectional shape of the tie hoop is circular.

5. The crown spring according to any one of claims 1 to 3, characterized in that The cross-sectional shape of the tie hoop is non-circular.

6. The crown spring according to claim 5, characterized in that: The cross-section of the tie hoop is triangular.

7. The crown spring according to claim 5, characterized in that: The cross-section of the tie hoop is a polygon.

8. An electrical terminal of an electrical connector, characterized in that: include: An electrical terminal, the upper end of which is in the shape of a hollow cylinder, and a receiving chamber is formed inside the terminal; A crown spring is disposed in the accommodation chamber of the power terminal, and the crown spring is the crown spring as claimed in any one of claims 1 to 7.

9. The electrical terminal of the electrical connector according to claim 8, characterized in that: The inner diameter of the accommodating chamber matches the outer diameter of the crown spring.

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