阅读说明：本技术 插头连接器 (Plug connector ) 是由 王友史 刘志钧 戴文杰 于 2019-04-09 设计创作，主要内容包括：本发明提供一种插头连接器,其包括导电本体、绝缘本体以及环状导电端子。导电本体具有安装孔。绝缘本体套设于导电本体,其中绝缘本体具有开孔,且安装孔对准开孔。环状导电端子设置于安装孔内,其中环状导电端子包括导电内环,且导电内环包括多个导电部。这些导电部呈环状排列,且每一个导电部具有至少二个导电触点。(The invention provides a plug connector, which comprises a conductive body, an insulating body and a ring-shaped conductive terminal. The conductive body has a mounting hole. The insulating body is sleeved on the conductive body, wherein the insulating body is provided with an opening, and the mounting hole is aligned to the opening. The annular conductive terminal is arranged in the mounting hole, wherein the annular conductive terminal comprises a conductive inner ring, and the conductive inner ring comprises a plurality of conductive parts. The conductive parts are arranged in a ring shape, and each conductive part is provided with at least two conductive contacts.)

1. A plug connector, comprising:

a conductive body having a mounting hole;

the insulating body is sleeved on the conductive body, wherein the insulating body is provided with an opening, and the mounting hole is aligned with the opening: and

and the annular conductive terminal is arranged in the mounting hole, the annular conductive terminal comprises a conductive inner ring, the conductive inner ring comprises a plurality of conductive parts, the conductive parts are arranged in an annular shape, and each conductive part is provided with at least two conductive contacts.

2. The plug connector of claim 1, wherein the annular conductive terminal further includes a first conductive outer ring and a second conductive outer ring disposed in parallel, the conductive inner ring is located between the first conductive outer ring and the second conductive outer ring, and each of the conductive portions connects the first conductive outer ring and the second conductive outer ring.

3. The plug connector of claim 2, wherein the two conductive contacts of each of the conductive portions include a first conductive contact and a second conductive contact, the first conductive contacts of the plurality of conductive portions are circumferentially arranged and define a first inner ring inner diameter of the conductive inner ring, the second conductive contacts of the plurality of conductive portions are circumferentially arranged and define a second inner ring inner diameter of the conductive inner ring, and the first inner ring inner diameter and the second inner ring inner diameter are both smaller than a first outer ring inner diameter of the first conductive outer ring and a second outer ring inner diameter of the second conductive outer ring.

4. The plug connector of claim 2, wherein the mounting hole has an inner wall surface, a bottom surface connecting the inner wall surface, an opening opposite the bottom surface, and a limit projection projecting from the inner wall surface, and the limit projection is adjacent to the opening, the first conductive outer ring faces the bottom surface, and the second conductive outer ring faces the limit projection.

5. The plug connector of claim 2, wherein the annular conductive terminal has a slit extending through one side of the first conductive outer ring, the conductive inner ring and the second conductive outer ring, and the slit separates two adjacent conductive portions.

6. The plug connector of claim 2, wherein said inner conductive ring has a plurality of grooves arranged in a ring, and adjacent ones of said conductive portions are separated by one of said grooves.

7. The plug connector of claim 6, wherein each of the grooves has opposite first and second ends, the first end of each of the grooves being located between the first conductive outer ring and the second end, and the second end of each of the grooves being located between the second conductive outer ring and the first end.

8. The plug connector of claim 2, wherein each of the conductive portions has a first extension, a second extension, a third extension, and a fourth extension connected in sequence, the first extension of each of the conductive portions connects to the first conductive outer ring, and the fourth extension of each of the conductive portions connects to the second conductive outer ring, a first turn is between the first extension and the second extension of each of the conductive portions, and a second turn is between the fourth extension and the third extension of each of the conductive portions, wherein the first turn of each of the conductive portions constitutes one of the two conductive contacts, and the second turn of each of the conductive portions constitutes the other of the two conductive contacts.

9. The plug connector of claim 8, wherein the mounting hole has an inner wall surface, and the first conductive outer ring and the second conductive outer ring abut against the inner wall surface, the first turn and the second turn of each of the conductive portions being separated from the inner wall surface.

10. The plug connector of claim 9, wherein a third bend is formed between the second extension segment and the third extension segment of each of the conductive portions, the third bend of each of the conductive portions is located between the first bend and the second bend, and the third bend of each of the conductive portions abuts against the inner wall surface of the mounting hole.

Technical Field

The present disclosure relates to connectors, and particularly to a plug connector.

Background

A conventional electronic device usually obtains power from an external power source through a power supply, and generally, the power supply includes a plug connector for plugging into a socket connector of the electronic device. The plug connector is provided with a plug part, a tuning fork type plate-shaped terminal is arranged in the plug part, correspondingly, the socket connector is provided with a butt joint space used for accommodating the plug part, and a butt joint terminal is arranged in the butt joint space and used for being matched with the tuning fork type plate-shaped terminal. After the plugging part of the plug connector is inserted into the butting space of the socket connector, the tuning-fork-type plate-shaped terminal contacts the butting terminal for transmitting current.

Further, since the tuning fork type plate terminal and the opposite terminal are in a single-point contact type, a contact area between the tuning fork type plate terminal and the opposite terminal is small, and a contact resistance between the tuning fork type plate terminal and the opposite terminal is large, if a large current passes through the tuning fork type plate terminal and the opposite terminal which are in contact with each other, an overheating phenomenon is easily generated due to excessive energy loss.

Disclosure of Invention

The invention provides a plug connector which can avoid the overheating phenomenon.

The plug connector of an embodiment of the invention includes a conductive body, an insulating body and a ring-shaped conductive terminal. The conductive body has a mounting hole. The insulating body is sleeved on the conductive body, wherein the insulating body is provided with an opening, and the mounting hole is aligned to the opening. The annular conductive terminal is arranged in the mounting hole, wherein the annular conductive terminal comprises a conductive inner ring, and the conductive inner ring comprises a plurality of conductive parts. The conductive parts are arranged in a ring shape, and each conductive part is provided with at least two conductive contacts.

Based on the above, the plug connector according to an embodiment of the invention is provided with a ring-shaped conductive terminal, and the ring-shaped conductive terminal has a plurality of conductive contacts. These conductive contacts of the annular conductive terminals contact mating terminals in the receptacle connector upon insertion of the plug connector into the receptacle connector. Because the contact type between the annular conductive terminal and the butt-joint terminal is multi-point contact, the contact area between the annular conductive terminal and the butt-joint terminal is increased, and the contact resistance between the annular conductive terminal and the butt-joint terminal is reduced. Under the condition that the contact resistance between the annular conductive terminal and the butt-joint terminal is reduced, if a large current passes through the annular conductive terminal and the butt-joint terminal which are contacted, the overheating phenomenon caused by excessive energy loss can be avoided.

In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

Fig. 1 is a schematic view of a plug connector according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of the plug connector of fig. 1;

FIG. 3 is a schematic view of the annular conductive terminal of FIG. 2;

fig. 4 is a cross-sectional schematic view of the plug connector of fig. 1;

fig. 5 is an enlarged schematic view of the region R of fig. 4.

Description of the reference numerals

100: plug connector

110: conductive body

111: mounting hole

112: inner wall surface

113: bottom surface

114: opening of the container

115: limiting convex part

120: insulating body

121: opening holes

130: annular conductive terminal

131: conductive inner ring

132: first conductive outer ring

133: second conductive outer ring

134: slit

135: groove

135 a: first end

135 b: second end

1301: conductive contact

1311: conductive part

1311 a: first extension section

1311 b: second extension section

1311 c: third extension segment

1311 d: the fourth extension section

1311 e: first turning fold

1311 f: second corner

1311 g: depressions

1311 h: third turn

140: sleeve barrel

D1: first inner diameter of inner ring

D2: second inner diameter of inner ring

D3: outer diameter of the first outer ring

D4: second outer ring outside diameter

R: region(s)

Detailed Description

Fig. 1 is a schematic view of a plug connector according to an embodiment of the invention. Fig. 2 is an exploded schematic view of the plug connector of fig. 1. Fig. 3 is a schematic view of the ring-shaped conductive terminal of fig. 2. Fig. 4 is a cross-sectional schematic view of the plug connector of fig. 1. Fig. 5 is an enlarged schematic view of the region R of fig. 4. Referring to fig. 1 to 4, in the present embodiment, the plug connector 100 may be a part of a power supply, and is used to cooperate with a socket connector of an electronic device to transmit current. Specifically, the plug connector 100 includes a conductive body 110, an insulating body 120 and a ring-shaped conductive terminal 130, wherein the insulating body 120 is sleeved on the conductive body 110, and the ring-shaped conductive terminal 130 is disposed in the conductive body 110. On the other hand, the plug connector 100 further includes a sleeve 140 disposed on the insulating body 120, and the insulating body 120 is located between the sleeve 140 and the conductive body 110.

Further, the conductive body 110 has a mounting hole 111 for receiving the annular conductive terminal 130. On the other hand, the insulating body 120 has an opening 121, and the mounting hole 111 is aligned with the opening 121. Therefore, after the plug connector 100 is inserted into the receptacle connector of the electronic device, the mating terminals in the receptacle connector can penetrate into the mounting holes 111 of the conductive body 110 through the openings 121 of the insulating body 120 and contact the annular conductive terminals 130 disposed in the mounting holes 111. Since the conductive body 110 contacts the annular conductive terminal 130, the current from the external power source can be transmitted to the power storage unit of the electronic device, such as a battery, through the conductive body 110, the annular conductive terminal 130 and the mating terminal in the receptacle connector.

In the present embodiment, the ring-shaped conductive terminal 130 includes a plurality of conductive contacts 1301, and after the plug connector 100 is inserted into a socket connector of an electronic device, the conductive contacts 1301 of the ring-shaped conductive terminal 130 contact with a mating terminal in the socket connector. Since the contact pattern between the annular conductive terminal 130 and the mating terminal is multi-point contact, the contact area between the annular conductive terminal 130 and the mating terminal is increased, and the contact resistance between the annular conductive terminal 130 and the mating terminal is reduced. Under the condition that the contact resistance between the annular conductive terminal 130 and the butt-joint terminal is reduced, if a large current passes through the annular conductive terminal 130 and the butt-joint terminal which are contacted, the overheating phenomenon caused by excessive energy loss can be avoided. Accordingly, the plug connector 100 can be applied to a high-power supply.

Referring to fig. 3, the ring-shaped conductive terminal 130 includes a conductive inner ring 131, and the conductive inner ring 131 includes a plurality of conductive portions 1311. The conductive portions 1311 are arranged in a ring shape, and each conductive portion 1311 includes at least two conductive contacts 1301. Note that, in each conductive portion 1311, the number of the conductive contacts 1301 may be increased according to design requirements. On the other hand, the annular conductive terminal 130 further includes a first conductive outer ring 132 and a second conductive outer ring 133 disposed in parallel, wherein the conductive inner ring 131 is located between the first conductive outer ring 132 and the second conductive outer ring 133, and each conductive portion 1311 connects the first conductive outer ring 132 and the second conductive outer ring 133.

Further, the annular conductive terminal 130 is not a completely closed annular structure and has a good elastic deformation capability. Furthermore, the annular conductive terminal 130 has a slit 134, wherein the slit 134 penetrates through one side of the first conductive outer ring 132, the conductive inner ring 131 and the second conductive outer ring 133, and the slit 134 is located between two adjacent conductive portions 1311. In other words, the slit 134 is used to separate two adjacent conductive portions 1311, and can serve as a buffer space when the annular conductive terminal 130 is deformed under pressure.

On the other hand, the conductive portions 1311 arranged in a ring shape are arranged at intervals along the surrounding direction of the first conductive outer ring 132 or the second conductive outer ring 133, in this embodiment, the conductive inner ring 131 further has a plurality of grooves 135, wherein the grooves 135 are arranged in a ring shape, and two adjacent conductive portions 1311 are separated by one groove 135. The slit 134 and the two adjacent conductive portions 1311 are located between two adjacent trenches 135, and the two adjacent conductive portions 1311 are separated by the slit 134. In other words, the slits 134 and the grooves 135 are spaced along the surrounding direction of the first conductive outer ring 132 or the second conductive outer ring 133.

The trenches 135 do not penetrate the first conductive outer ring 132 and the second conductive outer ring 133, wherein each trench 135 has a first end 135a and a second end 135b opposite to each other, the first end 135a of each trench 135 is located between the first conductive outer ring 132 and the second end 135b, and the second end 135b of each trench 135 is located between the second conductive outer ring 133 and the first end 135 a. Further, the first end 135a of each trench 135 is adjacent to the first conductive outer ring 132 and is spaced apart from the first conductive outer ring 132. The second end 135b of each groove 135 is adjacent the second conductive outer ring 133 and is spaced from the second conductive outer ring 133.

Referring to fig. 3 to fig. 5, in the present embodiment, each conductive portion 1311 is substantially W-shaped, wherein each conductive portion 1311 has a first extension 1311a, a second extension 1311b, a third extension 1311c, and a fourth extension 1311d connected in sequence, and the first extension 1311a of each conductive portion 1311 is connected to the first conductive outer ring 132 and obliquely extends from the first conductive outer ring 132 to the second extension 1311 b. A first turn 1311e is provided between the first extension 1311a and the second extension 1311b (i.e., where the first extension 1311a and the second extension 1311b intersect) of each conductive portion 1311. On the other hand, the fourth extension 1311d of each conductive portion 1311 connects to the second conductive outer ring 133, and extends obliquely from the second conductive outer ring 133 to the third extension 1311 c. A second turn 1311f is provided between the fourth extension 1311d and the third extension 1311c of each conductive portion 1311 (i.e., where the fourth extension 1311d and the third extension 1311c intersect).

The first turn 1311e and the second turn 1311f of each conductive portion 1311 form the two conductive contacts 1301, respectively. Each conductive portion 1311 has two recesses 1311g, and the two conductive contacts 1301 are the low points of the two recesses 1311g, respectively, with the first conductive outer ring 132 and the second conductive outer ring 133 as the reference. Based on the design of the conductive contacts 1301, the conductive contacts 1301 can positively abut mating terminals within the receptacle connector after the plug connector 100 is inserted into the receptacle connector.

Further, in each conductive portion 1311, the conductive contact 1301 near the first conductive outer ring 132 may be regarded as a first conductive contact, and the conductive contact 1301 near the second conductive outer ring 133 may be regarded as a second conductive contact. The first conductive contacts of the conductive portions 1311 are arranged circumferentially and define a first inner ring inner diameter D1 of the conductive inner ring 131. The second conductive contacts of the conductive portions 1311 are arranged circumferentially and define a second inner ring inner diameter D2 of the conductive inner ring 131. On the other hand, the first conductive outer ring 132 has a first outer ring outer diameter D3, and the second conductive outer ring 133 has a second outer ring outer diameter D4. The first inner ring inner diameter D1 and the second inner ring inner diameter D2 are both smaller than the first outer ring outer diameter D3 and the second outer ring outer diameter D4. Based on the inner diameter design of the conductive inner ring 131, the mating terminal in the receptacle connector can be smoothly inserted into the conductive inner ring 131 and reliably contact with the conductive contacts 1301 of the conductive inner ring 131.

Referring to fig. 3 to fig. 5, in the present embodiment, the mounting hole 111 of the conductive body 110 has an inner wall surface 112, a bottom surface 113 connected to the inner wall surface 112, an opening 114 opposite to the bottom surface 113, and a limiting protrusion 115 protruding from the inner wall surface 112, wherein the first conductive outer ring 132 and the second conductive outer ring 133 abut against the inner wall surface 112, and the first turn 1311e and the second turn 1311f of each conductive portion 1311 are separated from the inner wall surface 112. On the other hand, a third turn 1311h is provided between the second extension segment 1311b and the third extension segment 1311c (i.e., where the second extension segment 1311b and the third extension segment 1311c intersect) of each conductive portion 1311, and the third turn 1311h is located between the first turn 1311e and the second turn 1311 f.

The second extension segment 1311b of each conductive portion 1311 extends obliquely from the first turn 1311e, and the third extension segment 1311c extends obliquely from the second turn 1311f to meet at the third turn 1311 h. The third bend 1311h can be regarded as a convex section and abuts against the inner wall surface 112 of the mounting hole 111, compared with the two recesses 1311g of each conductive portion 1311. Since the first conductive outer ring 132, the second conductive outer ring 133 and the third turns 1311h all abut against the inner wall surface 112 of the mounting hole 111, the contact area between the conductive body 110 and the annular conductive terminal 130 is increased, and the contact resistance between the conductive body 110 and the annular conductive terminal 130 is reduced. When the contact resistance between the conductive body 110 and the annular conductive terminal 130 is reduced, if a large current passes through the conductive body 110 and the annular conductive terminal 130, the overheating phenomenon caused by excessive energy loss can be avoided.

Referring to fig. 5, the opening 114 is aligned with the opening 121 of the insulation body 120, and the limiting protrusion 115 is adjacent to the opening 114. On the other hand, the first conductive outer ring 132 faces the bottom surface 113, and the second conductive outer ring 133 faces the limit projection 115. The first conductive outer ring 132 may or may not contact the bottom surface 113, and the second conductive outer ring 133 may or may not contact the limit projection 115. Further, the limiting protrusion 115 can be used to prevent the annular conductive terminal 130 from sliding out of the mounting hole 111 through the opening 114, wherein the limiting protrusion 115 can be used to reduce the inner diameter of the mounting hole 111 adjacent to the opening 114, and for example, the inner diameter of the mounting hole 111 adjacent to the opening 114 is smaller than the outer diameter of the second conductive outer ring 133.

In summary, the plug connector according to an embodiment of the invention is provided with a ring-shaped conductive terminal, and the ring-shaped conductive terminal has a plurality of conductive contacts. These conductive contacts of the annular conductive terminals contact mating terminals in the receptacle connector upon insertion of the plug connector into the receptacle connector. Because the contact type between the annular conductive terminal and the butt-joint terminal is multi-point contact, the contact area between the annular conductive terminal and the butt-joint terminal is increased, and the contact resistance between the annular conductive terminal and the butt-joint terminal is reduced. Under the condition that the contact resistance between the annular conductive terminal and the butt-joint terminal is reduced, if a large current passes through the annular conductive terminal and the butt-joint terminal which are contacted, the overheating phenomenon caused by excessive energy loss can be avoided. Secondly, the contact type between the conductive body and the annular conductive terminal is multipoint contact, so that the contact area between the conductive body and the annular conductive terminal is increased, and the contact resistance between the conductive body and the annular conductive terminal is reduced. Under the condition that the contact resistance between the conductive body and the annular conductive terminal is reduced, if a large current passes through the conductive body and the annular conductive terminal which are in contact, the phenomenon of overheating caused by excessive energy loss can be avoided.

Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.