Socket connector and connector assembly

Abstract

The utility model discloses a socket connector and a connector assembly, the socket connector comprises an insulation pedestal, a plurality of pairs of socket terminals fixed on the insulation pedestal, an end wall protection sheet and a middle island protection sheet, the insulation pedestal comprises a bottom plate, a frame structure arranged on the bottom plate and a middle island structure arranged in the frame structure, the frame-shaped structure comprises a pair of oppositely arranged long edges and a pair of oppositely arranged short edges; the middle island protection sheet comprises a protection part used for protecting the end part of the middle island structure, a fixed connection part, a pair of first contact arms and a pair of second contact arms, the first contact arms extend towards the direction of the long edge, the second contact arms extend towards the direction of the short edge, and the middle island protection sheet and the insulating base are fixed together in an inlay molding manner. Compared with the prior art, the socket connector required to be protected is simple in structure, convenient to produce and process, capable of being used for transmitting ultra-large current and high in through-current capability.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a socket connector and a connector assembly. Background Art

[0002] As a key component for transmitting current, the entire current transmission line from the charging head to the device battery needs to be supported by electrical connectors. Today, fast charging is one of the effective solutions to the problem of battery life. Its rapid development is inseparable from the help of electrical connectors, but it also brings certain challenges to the structural design of electrical connectors, requiring electrical connectors to withstand large current transmission. For electrical connectors installed in terminal products, fast charging mainly relies on small board-to-board connectors. Taking mobile phone fast charging as an example, to achieve the connection between the mobile phone power board and the battery, the current transmitted by the board-to-board connector in a short time needs to be large enough, that is, the current capacity must be strong enough.

[0003] Therefore, there is an urgent need for a socket connector that has a large load current, high space utilization, meets the development needs of product miniaturization, and has a simple and stable structure that is easy to mass produce and process. Utility Model Content

[0004] The embodiment of the present application provides a socket connector with a simple structure, which can be used to transmit ultra-large currents and has a strong current-carrying capacity.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A socket connector comprises an insulating base, a plurality of pairs of socket terminals fixed on the insulating base, and an end wall protection sheet and a center island protection sheet arranged on both sides of the insulating base, wherein:

[0007] The insulating base includes a bottom plate, a frame structure arranged on the bottom plate, and an island structure located in the frame structure, wherein the frame structure includes a pair of oppositely arranged long sides and a pair of oppositely arranged short sides;

[0008] The center island protection sheet includes a protection portion for protecting the end of the center island structure, a fixed connection portion, a pair of first contact arms and a pair of second contact arms, the first contact arms extend in the direction of the long side, and the second contact arms extend in the direction of the short side, and the center island protection sheet and the insulating base are fixed together by inlay molding.

[0009] Preferably, extension portions are provided on both sides of the fixed connection portion, and the side walls of the extension portions close to the long sides are connected to the first contact arms, and the side walls of the extension portions close to the short sides are connected to the second contact arms.

[0010] Preferably, a welding site is provided at the bottom of the extension portion, and the welding site is exposed on the bottom surface of the bottom plate.

[0011] Preferably, a process hole is provided on the fixed connection portion, and the process hole is used to enhance the fitting strength between the island protection sheet and the insulating base.

[0012] Preferably, the protection portion is a cover structure, comprising a top surface located on the upper side of the island structure, a pair of first side surfaces located on the sides of the island structure, and a second side surface located between the first side surfaces.

[0013] Preferably, a first embedded portion extending downward is provided at the bottom of the first side surface.

[0014] Preferably, a second embedded portion extending downward is provided on a side of the top surface away from the second side surface.

[0015] Preferably, the socket terminals include socket signal terminals and socket power terminals, and in the direction where the long sides are located, the socket signal terminals are arranged between the socket power terminals.

[0016] Preferably, a sinking structure is provided on a side of the fixed connection portion away from the protective portion, and the bottom surface of the sinking structure is exposed to the bottom surface of the bottom plate for easy welding.

[0017] A connector assembly, comprising any of the above-mentioned socket connectors, and also comprising a plug connector, wherein the plug connector comprises a plastic base, a plurality of pairs of plug terminals fixed on the plastic base, and plug protection sheets arranged on both sides of the plastic base;

[0018] When the plug connector and the socket connector are in a plugged state, the socket terminal is electrically connected to the plug terminal, and the plug protection sheet is electrically connected to the end wall protection sheet, the first contact arm, and the second contact arm.

[0019] The beneficial effects of the utility model are as follows: by arranging a pair of first contact arms and a pair of second contact arms on the center island protection sheet, the flow capacity of the socket connector can be effectively improved; the first contact arm extends in the direction of the long side, and the second contact arm extends in the direction of the short side, that is, the extension directions of the first contact arm and the second contact arm intersect, which improves the contact stability and can also effectively improve the space utilization rate of the socket connector, thereby meeting the development needs of product miniaturization; the center island protection sheet and the end wall protection sheet are split structures, which are simple in structure, easy to produce and process, and conducive to industrial promotion and application compared to the integrated structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the socket connector in the embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure explosion of the socket connector in the embodiment of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the island protection sheet of the socket connector in the embodiment of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the connector assembly (in plugged state) in an embodiment of the utility model;

[0024] Figure 5 It is a first cross-sectional schematic diagram of the connector assembly (in plugged state) in an embodiment of the utility model;

[0025] Figure 6 It is a second cross-sectional schematic diagram of the connector assembly (in plugged state) in the embodiment of the utility model;

[0026] Figure 7 A schematic structural diagram of a plug connector in an embodiment of the utility model.

[0027] : Figure numerals: 100, socket connector; 110, insulating base; 111, bottom plate; 112, frame structure; 112A, long side; 112B, short side; 113, island structure; 120, socket terminal; 121, socket signal terminal; 122, socket power terminal; 130, end wall protection sheet; 140, island protection sheet; 141, protection part; 141A, top surface; 141B, first side surface; 141C, second side surface; 141D, first embedded part; 142, fixed connection part; 1421, extension part; 1422, process hole; 1423, sinking structure; 143, first contact arm; 144, second contact arm; 200, plug connector; 210, plastic base; 220, plug terminal; 221, plug signal terminal; 222, plug power terminal; 230, plug protection sheet. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0029] The embodiment of the present application provides a socket connector to solve the technical problem in the prior art that the current transmission capacity of the board-to-board connector is difficult to meet the development needs due to the limited design space. It should be noted that in the present application, when the socket connector is plugged into the plug connector, the direction of the socket connector relative to the plug connector is down, below, lower side or bottom, and the opposite direction is up, above, upper side or top, top.

[0030] like Figures 1 to 3 As shown, this is an embodiment of the present application:

[0031] A socket connector 100 includes an insulating base 110, a plurality of pairs of socket terminals 120 fixed on the insulating base 110, and end wall protection sheets 130 and a center island protection sheet 140 arranged on both sides of the insulating base 110. The insulating base 110 includes a bottom plate 111, a frame structure 112 arranged on the bottom plate 111, and a center island structure 113 located in the frame structure 112, and the frame structure 112 includes a pair of long sides 112A arranged oppositely and a pair of short sides 112B arranged oppositely. Specifically, the socket terminal 120 includes at least two pairs of socket power terminals 122 (shown later), which are respectively arranged between the center island structure 113 and the long sides 112A, and the socket power terminals 122 are arranged near the end of the center island structure 113, and the center island protection sheet 140 is arranged between the end of the center island structure 113 and the short side 112B. The island protection sheet 140 includes a protection portion 141 for protecting the end of the island structure 113, a fixed connection portion 142, a pair of first contact arms 143 and a pair of second contact arms 144. The first contact arm 143 extends in the direction of the long side 112A, and the second contact arm 144 extends in the direction of the short side 112B. The island protection sheet 140 and the insulating base 110 are fixed together by insert-molding.

[0032] In order to solve the technical problem in the prior art that the current transmission capacity of the board-to-board connector is difficult to meet the development needs due to limited design space, the present application can effectively improve the current carrying capacity of the socket connector by arranging a pair of first contact arms and a pair of second contact arms on the center island protection sheet; the first contact arm extends in the direction of the long side, and the second contact arm extends in the direction of the short side, that is, the extension directions of the first contact arm and the second contact arm intersect, which improves the contact stability and can effectively improve the space utilization rate of the socket connector, thereby meeting the development needs of product miniaturization; the center island protection sheet and the end wall protection sheet are split structures, which are simple in structure, easy to produce and process, and are conducive to industrial promotion and application compared to the integrated structure.

[0033] Preferably, extensions 1421 are provided on both sides of the fixed connection portion 142, and the side wall of the extension portion 1421 close to the long side 112A is connected to the first contact arm 143, and the side wall of the extension portion 1421 close to the short side 112B is connected to the second contact arm 144. Specifically, the extensions 1421 are provided on both sides of the fixed connection portion 142 along the direction where the long side 112A is located, respectively. The provision of the extensions 1421 facilitates the processing of the first contact arm 143 and the second contact arm 144, has high space utilization, and has a simple structure and is easy to produce.

[0034] Preferably, a welding site is provided at the bottom of the extension portion 1421, and the welding site is exposed on the bottom surface of the bottom plate 111. By providing the welding site at the bottom of the extension portion 1421, the heat dissipation path can be effectively shortened, thereby facilitating the performance and life of the socket connector.

[0035] Preferably, a process hole 1422 is provided on the fixed connection portion 142. The provision of the process hole 1422 can ensure the fluidity of the liquid plastic material during the injection molding process of the insulating base 110, thereby avoiding the occurrence of unexpected cavities in a local area of ​​the insulating base 110, which is beneficial to ensuring the production yield rate of the socket connector; at the same time, the process hole 1422 and the insulating base 110 filling the area of ​​the process hole 1422 can effectively strengthen the fitting strength between the middle island protection sheet 140 and the insulating base 110, and reduce the risk of the middle island protection sheet 140 being separated from the insulating base 110.

[0036] Preferably, if Figure 3 As shown, the protection part 141 is a cover structure, including a top surface 141A located on the upper side of the island structure 113, a pair of first side surfaces 141B located on both sides of the island structure 113, and a second side surface 141C located between the first side surfaces 141B. More specifically, in a specific embodiment, a first embedded portion 141D extending downward is provided at the bottom of the first side surface 141B to strengthen the embedded strength of the protection part 141 and the island structure 113, and reduce the risk of warping and deformation of the protection part 141 during use.

[0037] Preferably, a second embedded portion extending downward is provided on the side of the top surface 141A away from the second side surface 141C to strengthen the fitting strength between the protective portion 141 and the island structure 113, reduce the risk of warping and deformation of the protective portion 141 during use, and thereby help improve the structural stability and service life of the socket connector.

[0038] Preferably, the socket terminal 120 includes a socket signal terminal 121 and a socket power terminal 122. In the direction of the long side 112A, the socket signal terminal 121 is arranged between the socket power terminals 122. The socket power terminal 122 is arranged closer to the island protection sheet 140 than the socket signal terminal 121, which can effectively increase the flow path of the current and improve the current carrying capacity of the socket connector.

[0039] Preferably, a sinking structure 1423 is provided on one side of the fixed connection portion 142 away from the protection portion 141 , and the bottom surface of the sinking structure 1423 is exposed to the bottom surface of the bottom plate for easy welding and fixing.

[0040] like Figures 4 to 6 As shown, the present application also provides a connector assembly, including any of the above-mentioned socket connectors 100, and also including a plug connector 200. Figure 7 As shown, the plug connector 200 includes a plastic base 210, a plurality of pairs of plug terminals 220 fixed on the plastic base 210, and plug protection sheets 230 disposed on both sides of the plastic base 210. Figure 5 and Figure 6 As shown, when the plug connector 200 and the socket connector 100 are in the plugged state, the socket terminal 120 is electrically connected to the plug terminal 220, and the plug protection sheet 230 is electrically connected to the end wall protection sheet 130, the first contact arm 143 and the second contact arm 144. That is, when the plug connector 200 and the socket connector 100 are in the plugged state, the socket signal terminal 121 is electrically connected to the plug signal terminal 221, the socket power terminal 122 is electrically connected to the plug power terminal 222, the first contact arm 143 and the second contact arm 144 are respectively in elastic physical contact with the plug protection sheet 230 to achieve electrical contact, and the end wall protection sheet 130 is in physical contact with the plug protection sheet 230 to achieve electrical contact.

[0041] The insert molding is a molding method in which a pre-prepared insert of a different material is placed in a mold, and then resin is injected, and the molten material is bonded and solidified with the insert to form an integrated product.

[0042] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0043] The above-mentioned embodiments only express the implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A socket connector, characterized in that: It includes an insulating base, a plurality of pairs of socket terminals fixed on the insulating base, and end wall protection sheets and island protection sheets arranged on both sides of the insulating base, wherein: The insulating base includes a bottom plate, a frame structure arranged on the bottom plate, and an island structure located in the frame structure, wherein the frame structure includes a pair of oppositely arranged long sides and a pair of oppositely arranged short sides; The center island protection sheet includes a protection portion for protecting the end of the center island structure, a fixed connection portion, a pair of first contact arms and a pair of second contact arms, the first contact arms extend in the direction of the long side, and the second contact arms extend in the direction of the short side, and the center island protection sheet and the insulating base are fixed together by inlay molding.

2. The socket connector according to claim 1, characterized in that: Extension parts are provided on both sides of the fixed connection part. The side wall of the extension part close to the long side is connected to the first contact arm, and the side wall of the extension part close to the short side is connected to the second contact arm.

3. The socket connector according to claim 2, characterized in that: A welding site is provided at the bottom of the extension portion, and the welding site is exposed on the bottom surface of the bottom plate.

4. The socket connector according to claim 1, wherein: The fixed connection portion is provided with a process hole, and the process hole is used to reinforce the fitting strength between the island protection sheet and the insulating base.

5. The socket connector according to claim 1, wherein: The protection part is a cover structure, including a top surface located on the upper side of the island structure, a pair of first side surfaces located on the side surfaces of the island structure, and a second side surface located between the first side surfaces.

6. The socket connector according to claim 5, characterized in that: A first embedded portion extending downward is provided at the bottom of the first side surface.

7. The socket connector according to claim 5, characterized in that: A second embedded portion extending downward is provided on a side of the top surface away from the second side surface.

8. The socket connector according to claim 1, wherein: The socket terminals include a socket signal terminal and a socket power terminal. In the direction where the long side is located, the socket signal terminal is arranged between the socket power terminals.

9. The socket connector according to claim 1, characterized in that: A sinking structure is provided on one side of the fixed connection portion away from the protective portion, and the bottom surface of the sinking structure is exposed to the bottom surface of the bottom plate for easy welding.

10. A connector assembly, characterized in that: The socket connector according to any one of claims 1 to 9 further comprises a plug connector, wherein: The plug connector includes a plastic base, a plurality of pairs of plug terminals fixed on the plastic base, and plug protection sheets arranged on both sides of the plastic base; When the plug connector and the socket connector are in a plugged state, the socket terminal is electrically connected to the plug terminal, and the plug protection sheet is electrically connected to the end wall protection sheet, the first contact arm, and the second contact arm.

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