Electric connector

Abstract

The invention discloses an electric connector, which comprises an insulation body provided with a plugging groove in a penetrating manner, and a male connection terminal and a female connection terminal which are inserted into the plugging groove from the two ends of the insulation body and are electrically connected with each other, the male connection terminal is convexly provided with a plugging head, the female connection terminal is concavely provided with a plugging hole, the plugging head is plugged into the plugging hole, and the plugging head is inserted into the plugging hole. A crown spring is arranged between the outer side wall of the connecting plug and the inner side wall of the plugging hole, and the crown spring is electrically connected with the male connection terminal and the female connection terminal. The electric connector is simple in structure and stable in connection, stable transmission of large current can be ensured, and the safety of large current transmission is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of connectors, and in particular to an electrical connector. Background Technology

[0002] Electrical connectors, as an important component of circuits, combine elastic contacts with rigid components to achieve electrical connections between disconnected or isolated parts of the circuit, ensuring the continuous flow of current, signals, or data.

[0003] Existing high-current electrical connectors typically achieve electrical connection through female and male terminals. The female terminal is mounted on a female insulating body, and the male terminal is mounted on a male insulating body. The male and female insulating bodies are secured by an interlocking snap-fit ​​structure, forming the electrical connector. However, existing electrical connectors are not only structurally complex, but the combination of the male and female insulating bodies is also very prone to loosening under external forces, causing instability in the electrical connection. This is especially problematic under high-current transmission, posing a significant safety hazard. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an electrical connector that is simple in structure, has a stable connection, and can ensure safe transmission under high current conditions.

[0005] This invention discloses an electrical connector, comprising an insulating body through which a insertion slot is provided, and a male terminal and a female terminal electrically connected to each other, which are inserted into the insertion slot from both ends of the insulating body. The male terminal has a protruding plug, and the female terminal has a recessed insertion hole. The plug is inserted into the insertion hole, and a crown spring is provided between the outer side wall of the plug and the inner side wall of the insertion hole. The crown spring is electrically connected to both the male terminal and the female terminal.

[0006] Furthermore, the sidewall of the insulating body is provided with several first elastic arms at intervals corresponding to the female terminal, the ends of the first elastic arms extending inward into the insertion groove to fix the female terminal; the sidewall of the insulating body is provided with several second elastic arms at intervals corresponding to the male terminal, the second elastic arms extending inward into the insertion groove to fix the male terminal.

[0007] Furthermore, the outer periphery of the female terminal is provided with a plurality of first snap-fit ​​portions corresponding to a plurality of first elastic arms, and the outer periphery of the male terminal is provided with a plurality of second snap-fit ​​portions corresponding to a plurality of second elastic arms. The end of the first elastic arm is snapped onto the side of the first snap-fit ​​portion away from the male terminal, and the end of the second elastic arm is snapped onto the side of the second snap-fit ​​portion away from the female terminal.

[0008] Furthermore, when the connector is fully inserted into the socket, the end of the female terminal away from the male terminal and the end of the male terminal away from the female terminal are both located in the socket groove.

[0009] Furthermore, the first snap-fit ​​portion has a first abutting surface inclinedly provided on one side facing the male terminal, and the end of the first elastic arm has a first guide surface inclinedly provided corresponding to the first abutting surface; the second snap-fit ​​portion has a second abutting surface inclinedly provided on one side facing the female terminal, and the end of the second elastic arm has a second guide surface inclinedly provided corresponding to the second abutting surface.

[0010] Furthermore, the inner wall of the insertion groove of the insulating body on the side where the female terminal is inserted is provided with several first ribs, and the several first ribs and several first elastic arms are arranged alternately at intervals; the inner wall of the insertion groove of the insulating body on the side where the male terminal is inserted is provided with several second ribs, and the several second ribs and several second elastic arms are arranged alternately at intervals.

[0011] Furthermore, a first groove is provided between each pair of adjacent first protruding ribs. When the female terminal is inserted into the insertion slot, the first locking part slides inward along the first groove. A second groove is provided between each pair of adjacent second protruding ribs. When the male terminal is inserted into the insertion slot, the second locking part slides inward along the second groove.

[0012] Furthermore, the inner wall of the insertion groove of the insulating body is provided with a stop portion, one end of the female terminal abuts against the stop portion, and the plug passes through the stop portion and extends inward into the insertion hole.

[0013] Furthermore, the stop portion is arranged in a ring shape, and the inner diameter of the stop portion is smaller than the outer diameter of the crown spring.

[0014] Furthermore, the female terminal is provided with a female connection hole at the end away from the male terminal; the male terminal is provided with a male connection hole at the end away from the female terminal.

[0015] The electrical connector provided by the present invention is connected to the insertion hole of the female terminal by means of the male terminal's plug being inserted into the insertion groove of the same insulating body. A crown spring is provided between the outer side wall of the plug and the inner side wall of the insertion hole, and the crown spring is electrically connected to the male terminal and the female terminal. The electrical connector of the present invention not only has a simple structure and a stable connection, but also ensures stable transmission of large current, greatly improving the safety of large current transmission. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional schematic diagram of an electrical connector according to the present invention.

[0018] Figure 2 for Figure 1 The diagram shows an exploded three-dimensional view of the electrical connector.

[0019] Figure 3 for Figure 1 A top view of the electrical connector shown.

[0020] Figure 4 for Figure 3 The electrical connector shown is a cross-sectional view along plane AA.

[0021] Figure 5 for Figure 4 The diagram shows the anatomical view of the electrical connector.

[0022] Figure 6 This is a schematic diagram of the male connector of the present invention.

[0023] Figure 7 This is a schematic diagram of the female terminal of the present invention.

[0024] Figure 8 for Figure 7 A schematic diagram showing another angle of the female terminal.

[0025] Figure 9 This is a schematic diagram of the crown spring of the present invention. Detailed Implementation

[0026] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. Based on the description of the present invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention.

[0027] The terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the invention.

[0028] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0029] Please see Figures 1-9 This invention discloses an electrical connector, comprising an insulating body 10 through which a insertion slot 11 is formed, and a male terminal 30 and a female terminal 20 electrically connected to each other and inserted into the insertion slot 11 from both ends of the insulating body 10. One end of the male terminal 30 has a protruding connector 31, and one end of the female terminal 20 has a recessed insertion hole 21, with the connector 31 inserted into the insertion hole 21. The end of the connector 31 is hemispherical to facilitate insertion into the insertion hole 21 via a hemispherical arc. Furthermore, a crown spring 40 is provided between the outer wall of the connector 31 and the inner wall of the insertion hole 21, and the crown spring 40 is electrically connected to both the male terminal 30 and the female terminal 20. In this embodiment, the crown spring 40 is provided with several spring pieces 41 spaced apart along the circumference, and each spring piece 41 is provided with a contact portion protruding inward. The outer wall of the crown spring 40 is in electrical contact with the inner wall of the insertion hole 21, and the contact portion of the spring piece 41 is in electrical contact with the outer wall of the insertion connector 31, so as to ensure that the male terminal 30 and the female terminal 20 are in stable electrical contact.

[0030] Please see Figures 1-5 The sidewall of the insulating body 10 is provided with a plurality of first elastic arms 12 at intervals corresponding to the female terminal 20. The ends of the first elastic arms 12 extend inward into the insertion groove 11 to fix the female terminal 20. The sidewall of the insulating body 10 is provided with a plurality of second elastic arms 13 at intervals corresponding to the male terminal 30. The second elastic arms 13 extend inward into the insertion groove 11 to fix the male terminal 30.

[0031] Furthermore, the outer periphery of the female terminal 20 is provided with several first locking portions 22 corresponding to several first elastic arms 12, and the outer periphery of the male terminal 30 is provided with several second locking portions 32 corresponding to several second elastic arms 13. When the female terminal 20 is fully inserted into the insertion slot 11, the end of the first elastic arm 12 is locked onto the side of the first locking portion 22 away from the male terminal 30, and the end of the second elastic arm 13 is locked onto the side of the second locking portion 32 away from the female terminal 20.

[0032] In this embodiment, the end of the first elastic arm 12 protrudes inward and engages with the first engaging part 22 to prevent the female terminal 20 from exiting the insertion slot 11; the end of the second elastic arm 13 protrudes inward and engages with the second engaging part 32 to prevent the male terminal 30 from exiting the insertion slot 11.

[0033] Please see Figure 4 and Figure 5 The first snap-fit ​​portion 22 has a first abutment surface 221 inclinedly disposed on one side facing the male terminal 30. The end of the first elastic arm 12 has a first guide surface 121 inclinedly disposed corresponding to the first abutment surface 221. When the female terminal 20 is inserted into the insertion slot 11, the first abutment surface 221 abuts against the first guide surface 121, causing the first elastic arm 12 to expand outward. Finally, the female terminal 20 is smoothly inserted into the insertion slot 11. When the female terminal 20 is in place, the first elastic arm 12 returns to its elasticity and the end of the first elastic arm 12 abuts against the side of the first snap-fit ​​portion 22 to prevent the female terminal 20 from exiting the insertion slot 11. The second snap-fit ​​portion 32 has a second abutment surface 321 inclinedly disposed on one side facing the female terminal 20. The end of the second elastic arm 13 has a second guide surface 131 inclinedly disposed corresponding to the second abutment surface 321. When the male terminal 30 is inserted into the insertion slot 11, the second abutment surface 321 abuts against the second guide surface 131, causing the second elastic arm 13 to expand outward. Finally, the male terminal 30 is smoothly inserted into the insertion slot 11. When the male terminal 30 is inserted into place, the second elastic arm 13 restores its elasticity and the end of the second elastic arm 13 abuts against the side of the second snap-fit ​​portion 32 to prevent the male terminal 30 from exiting the insertion slot 11.

[0034] In this embodiment, the first abutting surface 221 and the first guiding surface 121 are arranged in parallel to facilitate the female terminal 20 to push the first elastic arm 12 to expand outward; the second abutting surface 321 and the second guiding surface 131 are arranged in parallel to facilitate the male terminal 30 to push the second elastic arm 13 to expand outward.

[0035] Please see Figure 1 and Figure 4 When the connector 31 is fully inserted into the connector hole 21, the end of the female terminal 20 away from the male terminal 30 and the end of the male terminal 30 away from the female terminal 20 are both located in the connector slot 11.

[0036] Furthermore, the female terminal 20 has a recessed female connection hole 23 at the end away from the male terminal 30, the female connection hole 23 is used to accommodate one end of the wire and electrically connect the wire in the female connection hole 23; the male terminal 30 has a recessed male connection hole 33 at the end away from the female terminal 20, the male connection hole 33 is used to accommodate one end of the wire and electrically connect the wire in the male connection hole 33.

[0037] When the end of the female terminal 20 away from the male terminal 30 and the end of the male terminal 30 away from the female terminal 20 are housed in the insertion slot 11 of the insulating body 10, it can prevent the ends of the female terminal 20 and the male terminal 30 connected to the wires from also being located in the insulating body 10, further preventing the wires from short-circuiting with other external circuits, causing circuit failure or safety hazards.

[0038] Please see Figures 4-8 The inner wall of the insertion groove 11 of the insulating body 10, located on the side where the female terminal 20 is inserted, is provided with several first protruding ribs 15, and the several first protruding ribs 15 and several first elastic arms 12 are arranged alternately at intervals. The inner wall of the insertion groove 11 of the insulating body 10, located on the side where the male terminal 30 is inserted, is provided with several second protruding ribs 16, and the several second protruding ribs 16 and several second elastic arms 13 are arranged alternately at intervals. Furthermore, a first sliding groove 17 is provided between every two adjacent first protruding ribs 15. When the female terminal 20 is inserted into the insertion groove 11, the first locking part 22 slides inward along the first sliding groove 17. A second sliding groove 18 is provided between every two adjacent second protruding ribs 16. When the male terminal 30 is inserted into the insertion groove 11, the second locking part 32 slides inward along the second sliding groove 18.

[0039] In this embodiment, the first ribs 15, which are arranged at equal intervals, ensure that a balanced inward pushing force is provided when the female terminal 20 is inserted into the insertion slot 11, effectively preventing the female terminal 20 from becoming misaligned when inserted into the insertion slot 11; the second ribs 16, which are arranged at equal intervals, ensure that a balanced inward pushing force is provided when the male terminal 30 is inserted into the insertion slot 11, effectively preventing the male terminal 30 from becoming misaligned when inserted into the insertion slot 11, and ultimately ensuring that the female terminal 20 and the male terminal 30 are smoothly connected.

[0040] Please continue reading. Figure 4 and Figure 5 The inner wall of the insertion slot 11 of the insulating material 10 is provided with a stop portion 14. One end of the female terminal 20 abuts against the stop portion 14 to limit the stroke of the female terminal 20 when inserted into the insertion slot 11. The plug 31 passes through the stop portion 14 and extends inward into the insertion hole 21. More specifically, the stop portion 14 is annularly arranged, the inner diameter of the stop portion 14 is larger than the outer diameter of the plug 31, and the inner diameter of the stop portion 14 is smaller than the outer diameter of the crown spring 40 to prevent the crown spring 40 from moving through the stop portion 14 toward the male terminal 30.

[0041] When assembling the electrical connector of the present invention: First, the crown spring 40 is inserted into the insertion hole 21 of the female terminal 20. At this time, the outer wall of the crown spring 40 abuts against the inner wall of the insertion hole 21. Then, the female terminal 20 with the crown spring 40 installed is inserted into the insertion groove 11 of the insulating body 10 until the female terminal 20 abuts against the stop part 14. At this time, the end of the first elastic arm 12 is engaged on the side of the first engaging part 22 away from the male terminal 30. Finally, the male terminal 30 is inserted into the insertion slot of the insulating body 10 until the plug 31 is inserted into the inner cavity of the crown spring 40 of the insertion hole 21. At this time, the inwardly protruding contact portion of the spring plate 41 of the crown spring 40 abuts against the outer side wall of the plug 31, and the end of the second elastic arm 13 is engaged with the side of the second engaging portion 32 away from the female terminal 20. Thus, the electrical connector of the present invention is assembled.

[0042] The electrical connector provided by the present invention is connected to the insertion hole 21 of the female terminal 20 by the insertion joint 31 of the male terminal 30 inserted into the insertion groove 11 of the same insulating body 10. A crown spring 40 is provided between the outer side wall of the insertion joint 31 and the inner side wall of the insertion hole 21, and the crown spring 40 is electrically connected to the male terminal 30 and the female terminal 20. The electrical connector of the present invention is not only simple in structure and has a stable connection, but also can ensure stable transmission of large current, which greatly improves the safety of large current transmission.

[0043] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. An electrical connector, characterized in that: The device includes an insulating body with a through-hole and a male terminal and a female terminal that are electrically connected to each other and inserted into the through-hole from both ends of the insulating body. The male terminal has a protruding connector and the female terminal has a recessed insertion hole. The connector is inserted into the insertion hole, and a crown spring is provided between the outer side wall of the connector and the inner side wall of the insertion hole. The crown spring is electrically connected to both the male terminal and the female terminal.

2. The electrical connector as described in claim 1, characterized in that: The sidewall of the insulating body is provided with several first elastic arms at intervals corresponding to the female terminal, and the ends of the first elastic arms extend inward into the insertion groove to fix the female terminal; the sidewall of the insulating body is provided with several second elastic arms at intervals corresponding to the male terminal, and the second elastic arms extend inward into the insertion groove to fix the male terminal.

3. The electrical connector as described in claim 2, characterized in that: The outer periphery of the female terminal has a plurality of first locking portions protruding from a plurality of first elastic arms, and the outer periphery of the male terminal has a plurality of second locking portions protruding from a plurality of second elastic arms. The ends of the first elastic arms are locked onto the side of the first locking portions away from the male terminal, and the ends of the second elastic arms are locked onto the side of the second locking portions away from the female terminal.

4. The electrical connector as described in claim 3, characterized in that: When the connector is fully inserted into the socket, the end of the female terminal away from the male terminal and the end of the male terminal away from the female terminal are both located in the socket groove.

5. The electrical connector as described in claim 3, characterized in that: The first snap-fit ​​portion has a first abutting surface inclinedly provided on one side facing the male terminal, and the end of the first elastic arm has a first guide surface inclinedly provided corresponding to the first abutting surface; the second snap-fit ​​portion has a second abutting surface inclinedly provided on one side facing the female terminal, and the end of the second elastic arm has a second guide surface inclinedly provided corresponding to the second abutting surface.

6. The electrical connector as described in claim 3, characterized in that: The inner wall of the insertion groove of the insulating body on the side where the female terminal is inserted is provided with several first ribs, and the several first ribs and several first elastic arms are arranged alternately at intervals; the inner wall of the insertion groove of the insulating body on the side where the male terminal is inserted is provided with several second ribs, and the several second ribs and several second elastic arms are arranged alternately at intervals.

7. The electrical connector as claimed in claim 6, characterized in that: A first groove is provided between each pair of adjacent first protruding ribs. When the female terminal is inserted into the insertion slot, the first locking part slides inward along the first groove. A second groove is provided between each pair of adjacent second protruding ribs. When the male terminal is inserted into the insertion slot, the second locking part slides inward along the second groove.

8. The electrical connector as claimed in claim 1, characterized in that: The inner side wall of the insertion groove of the insulating body is provided with a stop portion, one end of the female terminal abuts against the stop portion, and the plug passes through the stop portion and extends inward into the insertion hole.

9. The electrical connector as claimed in claim 8, characterized in that: The stop portion is arranged in a ring shape, and the inner diameter of the stop portion is smaller than the outer diameter of the crown spring.

10. The electrical connector as claimed in claim 1, characterized in that: The female terminal is provided with a female connection hole at the end away from the male terminal; the male terminal is provided with a male connection hole at the end away from the female terminal.

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