Socket connector, plug connector and connector assembly

Abstract

The application discloses a socket connector, a plug connector and a connector assembly, wherein the socket connector comprises a socket plastic base, a long-side terminal and a middle-island signal terminal. The socket plastic base comprises a frame structure and a middle-island structure located in the frame structure. The frame structure comprises a pair of oppositely arranged long-side structures and a pair of oppositely arranged short-side structures. The middle-island structure is provided with a first terminal accommodating groove extending along the length direction at the middle part in the width direction. The long-side terminal is arranged between the long-side structure and the middle-island structure. The middle-island signal terminal is arranged in the first terminal accommodating groove for signal transmission. Compared with the prior art, the space utilization of the socket connector is improved, which is beneficial to meet the development demand of product miniaturization, is beneficial to improve the signal / current transmission capacity of the socket connector, and is further beneficial to improve the maximum load current value of the socket connector.

Description

Technical Field

[0001] This invention relates to the field of electrical connector technology, and in particular to a socket connector, a plug connector, and a connector assembly. Background Technology

[0002] With the rapid development of technology and the internet, people are spending increasingly more time using electronic products daily. However, due to limitations imposed by battery characteristics, size, weight, and cost, the overall capacity of batteries is increasing relatively slowly. Fast charging is one of the effective solutions to the battery life problem. Electrical connectors are key components for transmitting current; the entire circuit from the charging head to the device's battery requires the support of electrical connectors. The development of fast charging relies heavily on electrical connectors, but this also presents challenges to their structural design, requiring them to withstand high current transmission while minimizing temperature rise. For electrical connectors installed inside terminal products, fast charging primarily utilizes small board-to-board connectors. Taking mobile phone fast charging as an example, to connect the phone's power board and battery, the board-to-board connector needs to transmit a sufficiently large current in a short time, meaning its overcurrent capacity must be strong enough.

[0003] Therefore, there is an urgent need for a connector that has high space utilization, meets the development needs of product miniaturization, and has a large load current. Summary of the Invention

[0004] This application provides a socket connector that has high space utilization, meets the development needs of product miniaturization, and has a large load current.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A socket connector, comprising: A socket plastic base includes a frame structure and an island structure located within the frame structure. The frame structure includes a pair of oppositely arranged long side structures and a pair of oppositely arranged short side structures. The island structure is provided with a first terminal receiving groove extending along the length direction. The long-side terminal, including the socket power terminal, is disposed between the long-side structure and the central island structure; The central island signal terminal is disposed in the first terminal receiving slot and is used for signal transmission.

[0006] Preferably, the island signal terminal includes a welding fixing part, a connecting part, and a contact part. The welding fixing part is located at the bottom of the socket plastic base, the connecting part contacts the inner wall of the first terminal receiving groove, and the contact part is located inside the first terminal receiving groove.

[0007] Preferably, the base plate of the socket plastic base has a through hole structure, and the end of the welding fixing part is located inside the through hole structure.

[0008] Preferably, there are two first terminal receiving slots, located at the two ends of the central island structure near the short side structure.

[0009] Preferably, the long-side terminal further includes a socket signal terminal.

[0010] Preferably, the socket power terminal includes a retaining part, a first contact part, a first connecting part, and a second contact part arranged in sequence. The retaining part is connected to the long side structure, and the first contact part, the first connecting part, and the second contact part are located between the long side structure and the central island structure.

[0011] Preferably, a second terminal receiving groove is provided on the inner wall of the long side structure, and a third terminal receiving groove is provided on the side wall of the island structure opposite to the long side structure, which is opposite to the second terminal receiving groove. The holding part abuts against the inner wall of the second terminal receiving groove, and the second contact part is located in the third terminal receiving groove.

[0012] Preferably, it further includes a socket end wall protective shell, which at least covers the surface of the short side structural portion.

[0013] A plug connector, comprising: A plug plastic base includes a base plate and a frame structure disposed on the base plate, the frame structure including a pair of oppositely disposed long sides and a pair of oppositely disposed short sides; The long side terminal of the plug, including the plug power terminal, is fixed on the long side; The intermediate signal terminal is fixed on the base plate and is used to transmit signals.

[0014] A connector assembly includes: any of the above-described socket connectors, and a plug connector, wherein: The plug connector includes a plug plastic base, a plug long side terminal disposed on the plug plastic base, and a middle signal terminal, wherein the plug long side terminal includes a plug power terminal; When the plug connector is connected to the socket connector, the long side terminal of the plug is electrically connected to the long side terminal, and the middle island signal terminal is electrically connected to the middle signal terminal to transmit signals.

[0015] The beneficial effects of this invention are as follows: By setting a first terminal receiving groove on the island structure of the socket connector and placing the island signal terminal in the first terminal receiving groove, the space utilization of the socket connector is greatly improved through the positional arrangement of the island signal terminal and the long side terminal, which is conducive to meeting the development needs of product miniaturization; under the same size, more signal terminals and / or wider socket power terminals can be set on the socket connector, which is conducive to improving the signal / current transmission capability of the socket connector, and thus conducive to improving the maximum load current value of the socket connector. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the socket connector in an embodiment of the present invention; Figure 2 This is a plan view of the socket connector in an embodiment of the present invention; Figure 3 This is an exploded view of the socket connector structure in an embodiment of the present invention; Figure 4 This is a schematic diagram of the plug connector in an embodiment of the present invention; Figure 5 This is an exploded view of the plug connector structure in an embodiment of the present invention; Figure 6 This is a schematic diagram of the connector assembly in an embodiment of the present invention; Figure 7 This is an exploded view of the connector assembly in an embodiment of the present invention; Figure 8 This is a first cross-sectional view of the connector assembly in an embodiment of the present invention; Figure 9 This is a second cross-sectional view of the connector assembly in an embodiment of the present invention.

[0017] Reference numerals: 100, socket connector; 110, socket plastic base; 111, long side structure; 1111, second terminal receiving slot; 112, short side structure; 113, island structure; 1131, first terminal receiving slot; 1132, third terminal receiving slot; 114, through hole structure; 120, long side terminal; 121, socket power terminal; 1211, retaining part; 1212, first contact part; 1213, first connecting part; 121 4. Second contact portion; 130. Mid-island signal terminal; 131. Welding fixing portion; 132. Connecting portion; 132A. Second connecting portion; 132B. Third connecting portion; 133. Contact portion; 133A. Third contact portion; 133B. Fourth contact portion; 140. Socket end wall protective shell; 200. Plug connector; 210. Plug plastic base; 220. Plug long side terminal; 230. Middle signal terminal; 240. Plug end wall protective shell. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] This application provides a socket connector that solves the technical problem in the prior art of simultaneously optimizing connector size and load current. It should be noted that in this application, the length direction refers to the direction in which the long side structure extends, and the width direction refers to the direction in which the short side structure extends; "lower," "lower side," "below," or "bottom" refer to the direction of the socket connector relative to the plug connector when the plug connector and socket connector are connected, and the opposite direction is "upper side," "above," or "top."

[0020] like Figures 1 to 3 The following is an embodiment of this application: A socket connector 100 includes a socket plastic base 110, a long side terminal 120, and a central island signal terminal 130.

[0021] The socket plastic base 100 includes a frame structure and a central island structure 113 located within the frame structure. The frame structure includes a pair of oppositely arranged long side structures 111 and a pair of oppositely arranged short side structures 112. The central island structure 113 is provided with a first terminal receiving groove 1131 extending along the length direction.

[0022] The long-side terminal 120 is disposed between the long-side structure 111 and the island structure 113. The long-side terminal 120 includes a socket power terminal 121, which is electrically connected to the plug connector 200 (shown later) to transmit current. Specifically, the long-side terminal 120 may include only the socket power terminal 121, or it may include both the socket power terminal 121 and other terminal structures. When the long-side terminal 120 includes only the socket power terminal 121, the installation space for the socket power terminal 121 is larger. The maximum load current of the socket connector 100 can be increased, and the current transmission capability of the socket connector 100 can be improved by increasing the number of socket power terminals 121 or increasing the width of the socket power terminals 121. The island signal terminal 130 is disposed in the first terminal receiving slot 1131 for transmitting signals.

[0023] To address the technical problem of simultaneously optimizing connector size and load current in existing technologies, this application provides a first terminal receiving groove on the island structure of the socket connector. The island signal terminals are placed within the first terminal receiving groove. By adjusting the positional arrangement of the island signal terminals and the long-side terminals, the space utilization of the socket connector is greatly improved, which is beneficial to meeting the development needs of product miniaturization. Under the same size, the socket connector can be equipped with a larger number of signal terminals and / or wider socket power terminals, which is beneficial to improving the signal / current transmission capability of the socket connector, and thus beneficial to increasing the maximum load current value of the socket connector.

[0024] Preferably, the central island signal terminal 130 includes a welding fixing part 131, a connecting part 132, and a contact part 133. The welding fixing part 131 is located at the bottom of the socket plastic base 110, the connecting part 132 contacts the inner wall of the first terminal receiving groove 1131, and the contact part 133 is located within the first terminal receiving groove 1131. More specifically, as... Figure 2 As shown, the island signal terminal 130 has a double-point contact structure, including a welding fixing part 131, a second connecting part 132A, a third contact part 133A, a third connecting part 132B, and a fourth contact part 133B, wherein the second connecting part 132A abuts against the inner wall of the first terminal receiving groove 1131. The double-point contact of the island signal terminal 130 and the intermediate signal terminal 230 of the plug connector 200 provides more stable contact performance, improving the stability of signal transmission in the connector assembly.

[0025] Preferably, the base plate of the socket plastic base 110 is provided with a through hole structure 114, and the end of the welding fixing part 131 is located inside the through hole structure 114. The through hole structure 114 not only facilitates the installation, welding and fixing of the island signal terminal 130, but also helps to reduce the weight of the socket plastic base 110, meeting the current development needs of lightweight products.

[0026] The number of first terminal receiving slots 1131 on the island structure 113 can be one, two, three, or more, depending on the width of the island structure 113. The first terminal receiving slots 113 are arranged in a single row, double row, or multiple rows along the length of the island structure 113. That is, when the width of the island structure 113 is narrow, the first terminal receiving slots 1131 are arranged in a single row; when the width of the island structure 113 is wide enough, the first terminal receiving slots 113 are arranged in double rows or multiple rows. For example, the number of first terminal receiving slots 1131 on the island structure 113 is one, located at any end of the island structure 113 near the short side structure 112 or in the middle of the island structure 113; the number of first terminal receiving slots 1131 on the island structure 113 is three, located at both ends and the middle of the island structure 113 near the short side structure 112 respectively; the number of first terminal receiving slots 1131 on the island structure 113 is four, with two first terminal receiving slots 1131 respectively provided at both ends of the island structure 113 near the short side structure 112, or the first terminal receiving slots 1131 are evenly arranged along the length direction of the island structure 113.

[0027] Preferably, there are two first terminal receiving slots 1131, located at the two ends of the central island structure 113 near the short side structure 112. More specifically, as shown... Figure 3 As shown, a through hole structure 114 is provided between the central island structure 113 and the short side structure 112. The central island signal terminal 130 is disposed in the first terminal receiving groove 1131, and the end of its welding fixing part 131 is located in the through hole structure 114.

[0028] Preferably, the long side terminal 120 may also include a socket signal terminal. The socket connector can be provided with a greater number of signal terminals, having more signal transmission channels and greatly improving the signal transmission capability of the socket connector.

[0029] Preferably, the socket power terminal 121 includes a retaining portion 1211, a first contact portion 1212, a first connecting portion 1213, and a second contact portion 1214 arranged sequentially. The retaining portion 1211 is connected to the long side structure 112, and the first contact portion 1212, the first connecting portion 1213, and the second contact portion 1214 are located between the long side structure 111 and the island structure 113. More specifically, a second terminal receiving groove 1111 is provided on the inner wall of the long side structure 111, and a third terminal receiving groove 1132, opposite to the second terminal receiving groove 1111, is provided on the side wall of the island structure 113 opposite to the long side structure 111. The retaining portion 1211 abuts against the inner wall of the second terminal receiving groove 1111, and the second contact portion 1214 is located within the third terminal receiving groove 1132.

[0030] Preferably, the retaining portion 1211 of the socket power terminal 121 can be connected to one, two, or more first contact portions 1212 simultaneously. That is, the first contact portion 1212, the first connecting portion 1213, and the second contact portion 1214 are considered as a group of structures. The retaining portion 1211 can be connected to one group of structures, or simultaneously to two groups of structures, or simultaneously to more than two groups of structures. This arrangement of the socket power terminal 121 can increase its width and enhance its current carrying capacity.

[0031] Preferably, the socket connector 100 further includes a socket end wall protective shell 140, which at least covers a portion of the surface of the short side structure 112. That is, the socket end wall protective shell 140 may cover a portion or all of the surface of the short side structure 112. In addition to covering the surface of the short side structure 112, the socket end wall protective shell 140 may also cover a portion of the surface of the long side structure 111. The socket end wall protective shell 140 increases the structural strength of the socket connector 100's end wall while also conducting current, further improving the current-carrying capacity of the socket connector 100. More specifically, the socket end wall protective shell 140 can be an integral structure or a separate structure. When the socket end wall protective shell 140 is a separate structure, the number of current paths can be increased, thereby improving the current-carrying capacity of the socket connector 100.

[0032] like Figures 4 to 5 As shown, a plug connector 200 includes a plug plastic base 210, a plug long-side terminal 220, and a middle signal terminal 230. Specifically, the plug plastic base 210 includes a substrate and a frame structure disposed on the substrate. The frame structure includes a pair of oppositely disposed long sides and a pair of oppositely disposed short sides. The plug long-side terminal 220 is fixed to the long sides, and the middle signal terminal 230 is located within the space enclosed by the frame structure and fixed to the substrate. The plug plastic base 210, the plug long-side terminal 220, and the middle signal terminal 230 can be fixed together by insert-molding.

[0033] The intermediate signal terminal 230 includes a fixing part and a contact protrusion. The fixing part is used to engage with the substrate to fix the intermediate signal terminal 230, and the contact protrusion is used to make electrical contact with the central island signal terminal 130 to transmit signals.

[0034] The long side terminal 220 of the plug includes a plug power terminal, which is electrically connected to the socket power terminal 121 for transmitting current. The long side terminal 220 of the plug may also include a plug signal terminal for electrically connecting to the socket signal terminal to transmit a signal.

[0035] The plug connector 200 also includes a plug end wall protective shell 240, which is disposed on the end wall of the plug connector and can be fixed to the plug plastic base by inlay molding. The plug end wall protective shell 240 enhances the structural strength of the end wall of the plug connector 200 and also makes electrical contact with the socket end wall protective shell 140 to conduct current, thereby improving its current-carrying capacity. More specifically, the plug end wall protective shell 240 can be an integral structure or a separate structure. When the plug end wall protective shell 240 is a separate structure, the number of current paths can be increased, thereby improving the current-carrying capacity of the plug connector.

[0036] like Figures 6 to 9 As shown, the connector assembly includes any of the aforementioned socket connectors 100, and also includes a plug connector 200. The plug connector 200 includes a plug plastic base 210, a long-side plug terminal 220 disposed on the plug plastic base 210, and a middle signal terminal 230. The long-side plug terminal 220 includes a plug power terminal. When the plug connector 200 is mated with the socket connector 100, the middle signal terminal 230 makes electrical contact with the middle signal terminal 230 to transmit a signal, and the plug power terminal makes electrical contact with the socket power terminal 121 to transmit current. Specifically, when the plug connector 200 is mated with the socket connector 100, as... Figure 8 As shown, the intermediate signal terminal 230 includes a fixing portion and a contact protrusion. The contact protrusion makes electrical contact with the third contact portion 133A and the fourth contact portion 133B of the central island signal terminal 130 to transmit signals; as Figure 9 As shown, the plug power terminal includes a soldering part and a U-shaped contact part. The U-shaped contact part is in electrical contact with the first contact part 1212 and the second contact part 1214 to transmit current.

[0037] The inlay molding refers to a molding method in which pre-prepared inserts of different materials are placed in a mold, resin is injected, and the molten material is bonded and solidified with the inserts to form an integrated product.

[0038] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The embodiments described above are merely illustrative of implementation methods of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A socket connector, characterized in that, include: A socket plastic base includes a frame structure and an island structure located within the frame structure. The frame structure includes a pair of oppositely arranged long side structures and a pair of oppositely arranged short side structures. The island structure is provided with a first terminal receiving groove extending along the length direction. The long-side terminal, including a socket power terminal, is disposed between the long-side structure and the central island structure for transmitting current. The socket power terminal includes a retaining part, a first contact part, a first connecting part, and a second contact part arranged in sequence. The retaining part is connected to the long-side structure, and the first contact part, the first connecting part, and the second contact part are located between the long-side structure and the central island structure. The island signal terminal is disposed in the first terminal receiving groove and is used to transmit signals; the island signal terminal includes a welding fixing part, a connecting part and a contact part, the welding fixing part is located at the bottom of the socket plastic base, the connecting part contacts the inner wall of the first terminal receiving groove, and the contact part is located inside the first terminal receiving groove; A second terminal receiving groove is provided on the inner wall of the long side structure, and a third terminal receiving groove is provided on the side wall of the island structure opposite to the long side structure, which is opposite to the second terminal receiving groove. The holding part abuts against the inner wall of the second terminal receiving groove, and the second contact part is located in the third terminal receiving groove.

2. The socket connector according to claim 1, characterized in that: The base plate of the socket plastic base has a through hole structure, and the end of the welding fixing part is located inside the through hole structure.

3. The socket connector according to claim 1, characterized in that: There are two first terminal receiving slots, located at the two ends of the central island structure near the short side structure.

4. The socket connector according to claim 1, characterized in that: The long-side terminal also includes a socket signal terminal.

5. The socket connector according to claim 1, characterized in that: It also includes a socket end wall protective shell, which at least covers the surface of the short side structure portion.

6. A plug connector, characterized in that, For mating with the socket connector of any one of claims 1 to 5, comprising: A plug plastic base includes a base plate and a frame structure disposed on the base plate, the frame structure including a pair of oppositely disposed long sides and a pair of oppositely disposed short sides; The long side terminal of the plug, including the plug power terminal, is fixed on the long side; The intermediate signal terminal is fixed on the base plate and is used to transmit signals.

7. A connector assembly, characterized in that, Includes the socket connector as described in any one of claims 1 to 5, and the plug connector, wherein: The plug connector includes a plug plastic base, a plug long side terminal disposed on the plug plastic base, and a middle signal terminal, wherein the plug long side terminal includes a plug power terminal; When the plug connector is connected to the socket connector, the long side terminal of the plug is electrically connected to the long side terminal, and the middle island signal terminal is electrically connected to the middle signal terminal to transmit signals.

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