Terminal plugging structure

Abstract

A terminal plugging structure relates to the technical field of electric transmission and comprises a male terminal and a female terminal which are plugged with each other. The male terminal is provided with at least one opening along the direction perpendicular to the plugging direction. The female terminal comprises a bottom wall, two side walls and two top walls, one end of each side wall is connected with the bottom wall, and the other end of each side wall is connected with one top wall; the bottom wall, the side wall and the top wall form an insertion cavity for insertion of a male terminal. The top wall is provided with at least one protrusion facing the bottom wall. And when the male terminal is inserted into the insertion cavity in place, the bulge is clamped with the opening so as to limit the male terminal from being separated from the insertion cavity. The male terminal is inserted into the insertion cavity of the female terminal to realize physical connection so as to perform electric transmission. After the male terminal is inserted into the insertion cavity, the protrusion is clamped into the opening in the male terminal, the male terminal can be prevented from exiting from the insertion cavity, and therefore the insertion stability of the male terminal and the female terminal is guaranteed. The side wall and the bottom wall contact the male terminal for electric energy transmission, so that the resistance can be effectively reduced, and the electric transmission efficiency is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of electrical transmission, and in particular to a terminal plug-in structure. Background Art

[0002] In the field of electrical connection, there are many electrical circuits that need to be connected with terminals. Currently, male terminals and female terminals are usually used for connection. In many cases, the clamping force of the female terminal on the male terminal is small, which easily leads to the separation of the two. Or the actual contact area between the male terminal and the female terminal becomes smaller due to insufficient clamping force, the resistance increases, the heat generation exceeds the standard, and the temperature rises. Therefore, a new solution is urgently needed in the prior art to solve the above problems. Summary of the invention

[0003] The problem to be solved by the present invention is how to increase the connection strength between plug-in terminals.

[0004] A terminal plug-in structure, comprising: a male terminal and a female terminal plugged into each other;

[0005] The male terminal is provided with at least one opening perpendicular to the plugging direction;

[0006] The female terminal comprises a bottom wall, two side walls and two top walls, one end of each side wall is connected to the bottom wall, and the other end is connected to one of the top walls;

[0007] The bottom wall, the side wall and the top wall surround a plug-in cavity for the male terminal to be plugged into;

[0008] The top wall has at least one protrusion toward the bottom wall;

[0009] When the male terminal is inserted into the insertion cavity and in place, the protrusion is engaged with the opening to prevent the male terminal from being disengaged from the insertion cavity.

[0010] A conductive arm connected to the bottom wall is arranged in the plug-in cavity, and a free end surface of the conductive arm contacts and is electrically connected to the male terminal.

[0011] The top wall has an extension portion toward the inserting cavity, and the protrusion is arranged on the extension portion.

[0012] The bottom wall has an extension portion bent into the plug-in cavity, and a free end of the extension portion applies an elastic force to the male terminal.

[0013] The end of the extension portion is inclined perpendicularly to the plugging direction, and is used to prevent the male terminal from being further inserted into the female terminal.

[0014] Along the plugging direction of the male terminal, the protrusion has an inclined surface which gradually extends toward the plugging cavity, and the inclined surface is used to guide the protrusion to enter the opening.

[0015] The protrusion has a vertical surface extending into the insertion cavity in a direction perpendicular to the insertion direction of the male terminal, and the vertical surface is used to prevent the protrusion from being separated from the opening after the protrusion is engaged with the opening.

[0016] The female terminal is integrally stamped and formed from a plate.

[0017] The female terminal also includes a connection end for connecting to a cable.

[0018] An included angle between an extension direction of the connecting end and an extension direction of the male terminal is greater than 15° and less than 180°.

[0019] The end of the connection end has a limiting portion, and the limiting portion is used to abut against the end of the cable.

[0020] The limiting portion is integrally formed with one of the side walls.

[0021] A guide portion is disposed at one end of the male terminal facing the insertion cavity, and a size of the guide portion gradually decreases along the insertion direction of the male terminal.

[0022] The present invention has the following beneficial effects: the male terminal of the present invention is inserted into the plug-in cavity of the female terminal to achieve physical connection and thus perform electrical transmission. After the male terminal is inserted into the plug-in cavity, the protrusion snaps into the opening on the male terminal, which can prevent the male terminal from exiting the plug-in cavity, thereby ensuring the plug-in stability of the male terminal and the female terminal. The side wall and the bottom wall contact the male terminal to perform electrical energy transmission, which can effectively reduce resistance and ensure electrical transmission efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] Figure 1 The present invention is a schematic structural diagram of a terminal plug-in structure.

[0025] Figure 2 It is a schematic diagram of a female terminal of a terminal plug-in structure of the present invention.

[0026] Figure 3 The present invention is a cross-sectional view of a female terminal of a terminal plug-in structure.

[0027] Figure 4 The present invention is a schematic diagram of a terminal plug-in structure having a connection end with a limiting portion.

[0028] The reference numerals in the figures indicate:

[0029] 1-male terminal, 11-opening, 12-guiding portion, 2-female terminal, 21-bottom wall, 211-extension portion, 212-blocking portion, 22-side wall, 23-top wall, 231-protrusion, 2311-inclined surface, 2312-vertical surface, 232-extension portion, 24-plug-in cavity, 25-conductive arm, 26-connecting end, 261-limiting portion. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] A terminal plug-in structure, such as Figure 1-Figure 4 As shown, it includes: a male terminal 1 and a female terminal 2 that are plugged into each other;

[0032] The male terminal 1 is provided with at least one opening 11 perpendicular to the plugging direction;

[0033] The female terminal 2 comprises a bottom wall 21, two side walls 22 and two top walls 23, one end of each side wall 22 is connected to the bottom wall 21, and the other end is connected to one of the top walls 23;

[0034] The bottom wall 21, the side wall 22 and the top wall 23 surround a plug-in cavity 24 for the male terminal 1 to be plugged into;

[0035] The top wall 23 has at least one protrusion 231 facing the bottom wall 21;

[0036] When the male terminal 1 is inserted into the insertion cavity 24 and in place, the protrusion 231 engages with the opening 11 to prevent the male terminal 1 from being disengaged from the insertion cavity 24 .

[0037] In the field of electrical transmission, various terminals are required for electrical connection. The male terminal 1 of the present application is inserted into the insertion cavity 24 of the female terminal 2 to achieve physical connection and thus electrical transmission. After the male terminal 1 is inserted into the insertion cavity 24, the protrusion 231 snaps into the opening 11 on the male terminal 1, which can prevent the male terminal 1 from exiting the insertion cavity 24, thereby ensuring the plugging stability of the male terminal 1 and the female terminal 2. The side wall 22 and the bottom wall 21 contact the male terminal 1 to transmit electrical energy, which can effectively reduce resistance and ensure electrical transmission efficiency.

[0038] In some embodiments, the plug cavity 24 is provided with a conductive arm 25 connected to the bottom wall 21. Figure 2As shown, the free end surface of the conductive arm 25 contacts and electrically connects with the male terminal 1. The conductive arm 25 contacts the side of the male terminal 1 to increase the contact area between the male terminal 1 and the female terminal 2 to reduce resistance, and also prevents the male terminal 1 from shaking left and right in the insertion cavity 24.

[0039] In some embodiments, the top wall 23 has an extension portion 232 toward the insertion cavity 24, and the protrusion 231 is disposed on the extension portion 232. The extension portion 232 extends toward the insertion cavity 24, and the protrusion 231 is located on the extension portion 232, which can make the clamping more stable after clamping and not easy to separate.

[0040] In some embodiments, the bottom wall 21 has an extension portion 211 that is bent into the insertion cavity 24, and the free end of the extension portion 211 applies elastic force to the male terminal 1. The extension portion 211 is bent and then enters the insertion cavity to abut against the male terminal 1. The bent extension portion 211 has an elastic force generated by the bending, thereby better clamping the male terminal 1.

[0041] In some embodiments, the end of the extension portion 211 is inclined perpendicularly to the plugging direction to form a blocking portion 212, which is used to block the male terminal 1 from further inserting into the female terminal 2. The blocking portion 212 can also increase the contact area between the female terminal 2 and the male terminal 1, further reduce resistance, and increase conductivity.

[0042] In some embodiments, along the plugging direction of the male terminal 1, the protrusion 231 has an inclined surface 2311 that gradually extends toward the plugging cavity 24. Figure 3 As shown, the inclined surface 2311 is used to guide the protrusion 231 to enter the opening 11. The inclined surface 2311 of the protrusion 231 can make the protrusion 231 slide into the opening 11 more easily.

[0043] In some embodiments, the protrusion 231 has a vertical surface 2312 extending into the insertion cavity 24 along a direction perpendicular to the insertion direction of the male terminal 1. Figure 3 As shown, the vertical surface 2312 is used to prevent the protrusion 231 from being separated from the opening 11 after the protrusion 231 is engaged with the opening 11. When the protrusion 231 enters the opening, the vertical surface 2312 arranged vertically can prevent the protrusion 231 from being separated from the opening 11.

[0044] In some embodiments, the female terminal 2 is formed by integral stamping of a plate material. Integral stamping not only has simple processing steps, but also has lower cost than machining and faster production speed.

[0045] In some embodiments, the female terminal 2 further includes a connection end 26 for connecting to a cable. The connection end 26 can be connected to the cable by screw connection, crimping, welding, etc. to achieve electrical transmission.

[0046] Furthermore, the angle between the extension direction of the connecting end 26 and the extension direction of the male terminal 1 is greater than 15° and less than 180°. Figure 4 As shown, in actual use, the outlet direction of the wire harness needs to be set differently according to the specific situation. The connecting end 26 and the male terminal 1 have a selectable angle, so as to meet the requirements of various use environments for the outlet angle.

[0047] Furthermore, the end of the connecting end 26 has a limiting portion 261, and the limiting portion 261 is used to abut against the end of the cable, so as to facilitate standardized operation, ensure that the overlapping portion of each pair of wire harnesses and the connecting end 6 is the same, and facilitate automated production.

[0048] Furthermore, the limiting portion 261 is integrally formed with one of the side walls 22. Figure 4 As shown, it is convenient to reduce the processing steps and also reduce the cost.

[0049] In some embodiments, a guide portion 12 is provided at one end of the male terminal 1 facing the insertion cavity 24, and the guide portion 12 gradually decreases in size along the insertion direction of the male terminal 1. The guide portion 12 can guide the male terminal 1 into the insertion cavity 24, and the male terminal 1 and the female terminal 2 can still be plugged in when they are not completely aligned.

[0050] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A terminal plug-in structure, characterized in that: include: A male terminal (1) and a female terminal (2) that are plugged into each other; The male terminal (1) is provided with at least one opening (11) perpendicular to the plugging direction; The female terminal (2) comprises a bottom wall (21), two side walls (22) and two top walls (23), one end of each side wall (22) being connected to the bottom wall (21) and the other end being connected to one of the top walls (23); The bottom wall (21), the side wall (22) and the top wall (23) surround a plug-in cavity (24) for the male terminal (1) to be plugged in; The top wall (23) has at least one protrusion (231) facing the bottom wall (21); When the male terminal (1) is inserted into the insertion cavity (24) and in place, the protrusion (231) engages with the opening (11) to prevent the male terminal (1) from being disengaged from the insertion cavity (24).

2. A terminal plug-in structure according to claim 1, characterized in that: A conductive arm (25) connected to the bottom wall (21) is arranged in the insertion cavity (24), and a free end surface of the conductive arm (25) is in contact with and electrically connected to the male terminal (1).

3. A terminal plug-in structure according to claim 1, characterized in that: The top wall (23) has an extension portion (232) facing the insertion cavity (24), and the protrusion (231) is arranged on the extension portion (232).

4. A terminal plug-in structure according to claim 1, characterized in that: The bottom wall (21) has an extension portion (211) that is bent into the insertion cavity (24), and the free end of the extension portion (211) applies an elastic force to the male terminal (1).

5. A terminal plug-in structure according to claim 4, characterized in that: The end of the extension portion (211) is a blocking portion (212) inclined perpendicularly to the plugging direction, and is used to block the male terminal (1) from being further inserted into the female terminal (2).

6. A terminal plug-in structure according to claim 5, characterized in that: Along the plugging direction of the male terminal (1), the protrusion (231) has an inclined surface (2311) that gradually extends toward the plugging cavity (24), and the inclined surface (2311) is used to guide the protrusion (231) into the opening (11).

7. A terminal plug-in structure according to claim 1, characterized in that: The protrusion (231) has a vertical surface (2312) extending into the plug-in cavity (24) in a direction perpendicular to the plug-in direction of the male terminal (1), and the vertical surface (2312) is used to prevent the protrusion (231) from being separated from the opening (11) after the protrusion (231) is snap-fitted with the opening (11).

8. A terminal plug-in structure according to claim 1, characterized in that: The female terminal (2) is integrally stamped and formed from a plate material.

9. A terminal plug-in structure according to claim 1, characterized in that: The female terminal (2) also includes a connection end (26) for connecting to a cable.

10. A terminal plug-in structure according to claim 9, characterized in that: The included angle between the extension direction of the connection end (26) and the extension direction of the male terminal (1) is greater than 15° and less than 180°.

11. A terminal plug-in structure according to claim 10, characterized in that: The end of the connection end (26) has a limiting portion (261), and the limiting portion (261) is used to abut against the end of the cable.

12. A terminal plug-in structure according to claim 11, characterized in that: The limiting portion (261) is integrally formed with one of the side walls (22).

13. A terminal plug-in structure according to claim 1, characterized in that: A guide portion (12) is provided at one end of the male terminal (1) facing the insertion cavity (24), and the guide portion (12) gradually decreases in size along the insertion direction of the male terminal (1).

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