Battery connector combination

Abstract

The invention provides a battery connector combination which comprises a first battery connector and a second battery connector which are connected in an inserted mode, the first battery connector is used for being installed on an external circuit board and is provided with a first insulation body and a plurality of first terminals, and the second battery connector is used for being installed on the external circuit board and is provided with a second insulation body and a plurality of second terminals. The first battery connector is provided with a first insulating body and a plurality of first terminals, the second battery connector is provided with a second insulating body and a plurality of second terminals, the middle part of the first insulating body is sunken to form a butt joint cavity which is opened upwards, the first terminals are arranged along the lengthwise direction, and the second battery connector is inserted with the first battery connector along the vertical direction. The second insulation body is provided with a butt joint protruding part inserted into the butt joint cavity, the two sides of the second terminal in the width direction are clamped by the first terminal, and the width direction is perpendicular to the lengthwise direction. The battery connector combination disclosed by the invention can transmit relatively large current and can effectively reduce the size in the lengthwise direction.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical connectors, and in particular to a battery connector assembly. Background Art

[0002] In the technical field of electrical connectors, battery connectors are widely used in multiple fields to achieve efficient and safe transmission of electric energy. The traditional battery connector assembly includes a battery socket connector and a battery plug connector that matches it. The battery socket connector has a socket body and socket terminals fixed on the socket body, and the battery plug connector has a plug body and plug terminals fixed on the plug body. The socket terminals are usually several knife-shaped terminals arranged along the longitudinal direction, and the plug terminals are elastic terminals that clamp both sides of each socket terminal in the longitudinal direction. Each knife-shaped socket terminal is cooperated with two elastic contact arms of the plug terminal, which will cause the battery plug connector and the battery socket connector to be too large in the longitudinal direction; if the structural forms of the plug terminals and the socket terminals are not changed and only the longitudinal dimensions of the battery plug connector and the battery socket connector are designed to be smaller, it will cause the problem that the current that the battery connector assembly can transmit is too small.

[0003] In view of this, it is necessary to improve the existing battery connector assembly to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a battery connector assembly that can transmit a large current and can effectively reduce the size in the longitudinal direction.

[0005] To achieve the above invention purpose, the present invention provides a battery connector assembly, which includes a first battery connector and a second battery connector that are plugged into each other. The first battery connector is used to be installed on an external circuit board and has a first insulating body and several first terminals fixed on the first insulating body. The second battery connector has a second insulating body and several second terminals fixed on the second insulating body. The middle part of the first insulating body is recessed to form a docking cavity that is open upward. The first terminals are arranged along the longitudinal direction. The second battery connector is plugged into the first battery connector in the up and down direction. The second insulating body has a docking convex part inserted into the docking cavity. The two sides of the second terminals in the width direction are clamped by the first terminals, and the width direction is perpendicular to the longitudinal direction.

[0006] As a further improvement of the present invention, each of the first terminals has first and second contact parts that are spaced apart in the width direction, and each of the second terminals has third and fourth contact parts that are respectively arranged on both sides of the docking convex part in the width direction. The third and fourth contact parts are respectively docked with the first and second contact parts.

[0007] As a further improvement of the present invention, the first terminals are arranged in a row along the longitudinal direction, and each of the first terminals has at least a pair of the first contact portions arranged side by side in the longitudinal direction.

[0008] As a further improvement of the present invention, at least a part of the first terminals has two first contact arms arranged side by side in the longitudinal direction, the first contact arms are elastic, and the first contact portions protrude and are formed on the first contact arms.

[0009] As a further improvement of the present invention, the first terminals include a group of first signal terminals and two groups of first power terminals, the two groups of first power terminals are respectively disposed on both sides of the first signal terminals in the longitudinal direction, and the width of the first signal terminals in the longitudinal direction is smaller than the width of the first power terminals in this direction.

[0010] As a further improvement of the present invention, the second insulating body has a butt joint portion and a wiring portion arranged adjacent to each other in the width direction, the butt joint portion includes a main body portion and the butt joint convex portion protruding from the main body portion, and the butt joint convex portion is arranged perpendicular to the main body portion.

[0011] As a further improvement of the present invention, the first insulating body includes a base body and a plurality of side walls erected on the base body, the side walls include a pair of first side walls relatively and spaced apart in the longitudinal direction, and a pair of second side walls relatively and spaced apart in the width direction, and the pair of first side walls and the second side walls enclose to form the butt joint cavity.

[0012] As a further improvement of the present invention, one of the second side walls is provided with a limiting convex portion protruding in a direction away from the base body, and the main body portion is recessed to form a notch matching with the limiting convex portion.

[0013] As a further improvement of the present invention, the second battery connector further has a metal housing fixed on the second insulating body, and a through groove for a pulling belt to pass through is formed on the metal housing or between the metal housing and the second insulating body.

[0014] As a further improvement of the present invention, the metal housing further has a substrate portion and a pair of first buckling portions extending from the substrate portion, the first battery connector has a pair of fixing members fixed on both sides of the first insulating body in the longitudinal direction, and each of the fixing members has a second buckling portion matching with the corresponding first buckling portion.

[0015] Advantages of the present invention: By designing the first terminals and the second terminals of the first connector and the second battery connector of the battery connector of the present invention to be in clamping contact in the width direction, rather than in the longitudinal direction in the conventional battery connector combination, the dimensions of the first and second battery connectors in the longitudinal direction are effectively reduced, while meeting the transmission requirements of a large current, so as to meet the requirements of the development of electronic devices towards lightweight and high integration. Description of the Drawings

[0016] Figure 1 is a perspective view of the first battery connector and the second battery connector in the battery connector combination of the present invention when not plugged in;

[0017] Figure 2 is Figure 1 a view of another perspective of the battery connector combination shown;

[0018] Figure 3 is Figure 1 a perspective view of the first battery connector and the second battery connector in the battery connector combination shown when plugged in;

[0019] Figure 4 is Figure 1 a perspective exploded view of the first battery connector in the battery connector combination shown;

[0020] Figure 5 is Figure 4 a perspective view of the first power terminal in the first battery connector shown;

[0021] Figure 6 is Figure 5 a side view of the first power terminal shown;

[0022] Figure 7 is Figure 4 a perspective view of the first signal terminal in the first battery connector shown;

[0023] Figure 8 is Figure 7 a side view of the first signal terminal shown;

[0024] Figure 9 is Figure 1 a perspective exploded view of the second battery connector in the battery connector combination shown;

[0025] Figure 10 is Figure 9 a view of another perspective of the second battery connector shown;

[0026] Figure 11 is Figure 3 a cross-sectional view of the battery connector combination shown. Detailed Embodiments

[0027] The present invention will be described in detail below in conjunction with the embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodical, or functional changes made by those of ordinary skill in the art based on these embodiments are included within the scope of protection of the present invention.

[0028] As Figures 1 to 11 shown, the present invention provides a battery connector assembly, which includes a first battery connector 100 and a second battery connector 200 that are plugged into each other.

[0029] The first battery connector 100 is used to be mounted on an external circuit board (not shown), and has a first insulating body 11 and a plurality of first terminals 12 fixed to the first insulating body 11. The second battery connector 200 has a second insulating body 21 and a plurality of second terminals 22 fixed to the second insulating body 21. The middle part of the first insulating body 11 is recessed to form a docking cavity 110 that is open upward, and the first terminals 12 are arranged along the longitudinal direction. The second battery connector 200 is plugged into the first battery connector 100 in the up-and-down direction, and the second insulating body 21 has a docking protrusion 210 inserted into the docking cavity 110. The two sides of the second terminals 22 in the width direction are clamped by the first terminals 12, and the width direction is perpendicular to the longitudinal direction.

[0030] In this way, by designing the first terminals 12 and the second terminals 22 of the first connector 100 and the second battery connector 200 to be in clamping contact in the width direction, rather than in clamping contact in the longitudinal direction in the traditional battery connector assembly, the sizes of the first and second battery connectors 100 and 200 in the longitudinal direction are effectively reduced, while meeting the transmission requirements of a large current, so as to adapt to the development needs of electronic devices towards lightweight and high integration.

[0031] In the present invention, the first insulating body 11 includes a base body 112 and a plurality of side walls 113 erected on the base body 112. The side walls 113 include a pair of first side walls 1131 that are opposite and spaced apart in the longitudinal direction, and a pair of second side walls 1132 that are opposite and spaced apart in the width direction. The pair of first side walls 1131 and the second side walls 1132 enclose to form the docking cavity 110.

[0032] The first insulating body 11 has a plurality of first terminal slots 114 arranged along the longitudinal direction. Each first terminal slot 114 penetrates the base body 112 in the up-and-down direction and extends to the inside of the second side walls 1132 on both sides in the width direction.

[0033] In the present invention, the first terminals 12 are arranged along the longitudinal direction, and the second terminals 22 are also arranged along the longitudinal direction. In some embodiments, the conductivity of the first terminals 12 is not less than 85%, and the conductivity of the second terminals 22 is not less than 95%.

[0034] Each of the first terminals 12 has first and second contact portions 1201 and 1202 that are spaced apart in the width direction. Each of the second terminals 22 has third and fourth contact portions 2201 and 2202 that are respectively disposed on both sides of the docking convex portion 210 in the width direction, and the third and fourth contact portions 2201 and 2202 are respectively docked with the first and second contact portions 1201 and 1202.

[0035] In some embodiments, the first terminals 12 are arranged in a row along the longitudinal direction, and each of the first terminals 12 has at least one pair of the first contact portions 1201 arranged side by side in the longitudinal direction.

[0036] Thus, by providing at least one pair of first contact portions 1201 on each of the first terminals 12, multi-point contact with the second terminals 22 is achieved, thereby effectively improving the signal transmission stability of the signal terminals and the current-carrying capacity of the power terminals, and maintaining a stable and reliable electrical connection even after multiple pluggings and unplugging operations.

[0037] Specifically, each of the first terminals 12 includes a contact section 121, a holding section 123 fixed to the first insulating body 11, and a welding section 124 for connecting to an external circuit board. The first and second contact portions 1201 and 1202 are formed on the contact section 121. The first contact portion 1201 and the second contact portion 1202 protrude towards each other. Each of the contact sections 121 includes a pair of the first contact portions 1201 and one second contact portion 1202.

[0038] Each of the contact sections 121 is U-shaped and includes a first contact arm 1211, a second contact arm 1212, and a connecting arm 1213 connecting the first contact arm 1211 and the second contact arm 1212. The connecting arm 1213 connects the bottoms of the first contact arm 1211 and the second contact arm 1212. The first contact portion 1201 protrudes from the first contact arm 1211, and the second contact portion 1202 protrudes from the second contact arm 1212. The second contact arm 1212 is arranged parallel to the holding section 123.

[0039] The welding section 124 is placed horizontally and welded to an external circuit board. The holding section 123 is disposed perpendicular to the welding section 124. Each of the first terminals 12 further includes a connecting section 125 connecting the contact section 121 and the holding section 123, and the connecting section 125 is perpendicular to the holding section 123 and the second contact arm 1212. The connecting section 125 is connected to the top end of the holding section 123, and the welding section 124 is connected to the bottom end of the holding section 123. Thus, the holding section 123 is connected to the welding section 124 and the connecting section 125 to form a Z shape.

[0040] In some embodiments, the first terminal 12 is assembled on the first insulating body 11 and fixed to the first insulating body 11 through the holding section 123.

[0041] At least a part of the first terminals 12 have two first contact arms 1211 arranged side by side in the longitudinal direction. The first contact arms 1211 are elastic, and the first contact portions 1201 protrude from the first contact arms 1211.

[0042] The first terminal 12 includes a group of first signal terminals 12b and two groups of first power terminals 12a. The two groups of first power terminals 12a are respectively disposed on both sides of the first signal terminal 12b in the longitudinal direction, and the width of the first signal terminal 12b in the longitudinal direction is smaller than the width of the first power terminal 12a in this direction.

[0043] Thus, signals are transmitted to modules such as an external display, a main board, and a graphics card through the first signal terminal 12b; by setting the width of the first signal terminal 12b in the longitudinal direction to be smaller than the width of the first power terminal 12a in the longitudinal direction, the size of the first battery connector 100 in the longitudinal direction is reduced.

[0044] The contact section 121 of each first power terminal 12a has two first contact arms 1211 arranged side by side in the longitudinal direction, that is, the first power terminal 12a is the part of the first terminal 12 having two first contact arms 1211 as described above. The contact section 121 of the first signal terminal 12b has only one first contact arm 1211, and a pair of first contact portions 1201 arranged side by side in the longitudinal direction protrude from the first contact arm 1211.

[0045] In the height direction, the first contact portion 1201 of the first power terminal 12a is lower than its second contact portion 1202, that is, the first contact portion 1201 is closer to its connecting arm 1213 in the height direction. By setting the second contact portion 1202 higher than the first contact portion 1201, the second contact portion 1202 comes into contact with the second terminal 22 first, and the first contact portion 1201 comes into contact with the second terminal 22 later. The second contact portion 1202 is used to guide the correct insertion of the second terminal 22, reducing damage caused by misalignment; at the same time, the first and second contact portions 1201 and 1202 misaligned in the height direction can disperse mechanical stress and improve the stability of the overall electrical connection, especially performing better in a vibration or impact environment.

[0046] In this embodiment, different from the first power terminal 12a, each contact section 121 of the first signal terminal 12b has only one first contact arm 1211, and a groove 1214 is recessed in the contact portion of the first contact arm 1211. The groove 1214 is formed in the middle of the first contact arm 1211 in the longitudinal direction, and a pair of the first contact portions 1201 protrude from both sides of the groove 1214 in the longitudinal direction.

[0047] In this way, by setting only one first contact arm 1211 for the first signal terminal 12b, the size of the first signal terminal 12b in the longitudinal direction is controlled, the structural strength of the first contact arm 1211 is ensured, and further the size of the first battery connector 100 in the longitudinal direction is reduced, and the stability and reliability of the electrical connection of the first signal terminal 12b are ensured.

[0048] Please refer to Figures 9 to 11 As shown, the second insulating body 21 has a docking portion 210 and a wiring portion 213 arranged adjacent to each other in the width direction. The docking portion 210 includes a main body portion 211 and the docking convex portion 212 protruding from the main body portion 211. The docking convex portion 212 is perpendicular to the main body portion 211.

[0049] The main body portion 211 and the wiring portion 213 are misaligned in the up and down direction. The two end faces of the docking convex portion 212 in the width direction are respectively spaced from the two ends of the main body portion 211 in the width direction, that is, the docking convex portion 212 is connected to the middle of the main body portion 211 in the width direction.

[0050] The docking convex part 212 extends downward from the middle of the main body part 211, so that the main body part 211 and the docking convex part 212 are connected to form a T shape. The docking convex part 212 and the wiring part 213 are arranged at intervals in the width direction. One side of the docking convex part 212 away from the wiring part 213 is exposed and arranged facing the outside in the width direction.

[0051] The second terminal 22 is fixed to the second insulating body 21 by an insert molding method. Each second terminal 22 includes the third contact part 2201 and the fourth contact part 2202. The third contact part 2202 is in a flat plate shape, and the fourth contact part 2202 is in a flat plate shape. The third and fourth contact parts 2201, 2202 are arranged on both sides of the docking convex part 212 in the width direction.

[0052] In this embodiment, the fourth contact part 2202 is arranged on the side of the docking convex part 212 away from the wiring part 213 to contact the second contact part 1202 of the first terminal 12; the third contact part 2201 is located on the side of the docking convex part 212 close to the wiring part 213 to contact the first contact part 1201 of the first terminal 12.

[0053] Corresponding to the first terminal 12, the second terminal 22 includes a group of second signal terminals 22b and second power terminals 22a located on both sides of the second signal terminals 22b in the longitudinal direction. The fourth contact part 2202 of the second power terminal 22a is provided with a recess 2203 adapted to the second contact part 1202 to accommodate the protruding second contact part 1202, so as to ensure a larger contact area between the second contact part 1202 and the fourth contact part 2202, reduce the contact resistance, improve the current-carrying capacity, and at the same time enhance the stability of mechanical cooperation, avoid contact disconnection caused by mechanical stress, the contact pressure can also be evenly distributed, reduce the problem of single-point stress concentration, and extend the service life of the power terminal.

[0054] In some embodiments, one of the second side walls 1132 is provided with a limiting convex part 1133 protruding in a direction away from the base body 112, and the main body part 211 is recessed to form a notch 2112 adapted to the limiting convex part 1133.

[0055] Further, in this embodiment, a pair of the limiting convex parts 1133 protrude from the top of one of the second side walls 1132, so that the one second side wall 1132 is higher than the other second side wall 1132. The limiting convex part 1133 and the welding section 124 are located on the same side of the docking cavity 110 in the width direction.

[0056] In the present invention, the second battery connector 200 further has a cable 23 electrically connected to the second terminal 22, and the cable 23 is connected to a wire bonding portion 2204 arranged on the wiring portion 213 together with the second terminal 22.

[0057] In the present invention, the second battery connector 200 further has a metal housing 24 fixed to the second insulating body 21, and a through slot 240 for a pulling belt 25 to pass through is formed on the metal housing 24 or between the metal housing 24 and the second insulating body 21.

[0058] Specifically, the metal housing 24 further has a substrate portion 241 and a pair of first buckle portions 242 extending from the substrate portion 241. The first battery connector 100 has a pair of fixing members 13 fixed to both sides of the first insulating body 11 in the longitudinal direction, and each fixing member 13 has a second buckle portion 1312 cooperating with the corresponding first buckle portion 242.

[0059] In the embodiment shown in the present invention, the substrate portion 241 of the metal housing 24 covers the upper side of the main body portion 211, and a recessed area 2113 is provided at the top of the main body portion 211, so that a through slot 240 is formed at an interval between the metal housing 24 and the second insulating body 21.

[0060] In other embodiments of the present invention, the through slot 240 may also be directly formed on the substrate portion 241 of the metal housing 24, and the through slot 240 penetrates the substrate portion 241 in the up and down direction for the pulling belt 25 to pass through.

[0061] The fixing member 13 is in an n shape and includes a first fixing piece 131 and a second fixing piece 132, and the first fixing piece 131 and the second fixing piece 132 are arranged at intervals in the longitudinal direction. The fixing member 13 straddles the first side wall 1131. The first fixing piece 131 is inserted into a slot 1134 formed on the first side wall 1131.

[0062] In summary, in the battery connector combination of the present invention, by designing the first terminals 12 and the second terminals 22 of the first connector 100 and the second battery connector 200 to be in clamping contact in the width direction, rather than in the longitudinal direction in the traditional battery connector combination, the dimensions of the first and second battery connectors 100 and 200 in the longitudinal direction are effectively reduced, and at the same time, the transmission requirements of a large current are met to adapt to the development needs of electronic devices towards light weight and high integration.

[0063] It should be understood that although this specification is described by way of examples, not every example only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each example can also be appropriately combined to form other examples that can be understood by those skilled in the art.

[0064] The above examples are only used to illustrate the technical solutions of the present application and not to limit them. Although the present application has been described in detail with reference to the preferred examples, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A battery connector assembly, comprising a first battery connector and a second battery connector that are plugged into each other, wherein the first battery connector is used to be mounted on an external circuit board and has a first insulating body and a plurality of first terminals fixed to the first insulating body, and the second battery connector has a second insulating body and a plurality of second terminals fixed to the second insulating body, characterized in that: The middle portion of the first insulating body is concave to form a docking cavity that is open upward, the first terminals are arranged along the longitudinal direction, the second battery connector is plugged into the first battery connector along the up and down direction, the second insulating body has a docking protrusion inserted into the docking cavity, and the second terminals are clamped by the first terminals on both sides in the width direction, and the width direction is perpendicular to the longitudinal direction.

2. The battery connector assembly according to claim 1, characterized in that: Each of the first terminals has first and second contact portions spaced apart in the width direction, and each of the second terminals has third and fourth contact portions disposed on both sides of the docking protrusion in the width direction, the third and fourth contact portions respectively contacting the first and second contact portions.

3. The battery connector assembly according to claim 2, wherein: The first terminals are arranged in a row along the longitudinal direction, and each of the first terminals has at least one pair of first contact portions arranged side by side in the longitudinal direction.

4. The battery connector assembly according to claim 3, characterized in that: At least part of the first terminals has two first contact arms arranged side by side in the longitudinal direction, the first contact arms are elastic, and the first contact portion is protruded from the first contact arms.

5. The battery connector assembly according to claim 3, characterized in that: The first terminals include a group of first signal terminals and two groups of first power terminals. The two groups of first power terminals are disposed on both sides of the first signal terminals in the longitudinal direction. The width of the first signal terminals in the longitudinal direction is smaller than the width of the first power terminals in the same direction.

6. The battery connector assembly according to claim 1, characterized in that: The second insulating body has a docking portion and a wiring portion adjacently arranged in the width direction, the docking portion includes a main body portion and the docking protrusion formed by protruding from the main body portion, and the docking protrusion is arranged perpendicular to the main body portion.

7. The battery connector assembly according to claim 6, wherein: The first insulating body includes a base and a plurality of side walls erected on the base, the side walls include a pair of first side walls opposite and spaced apart in the longitudinal direction, and a pair of second side walls opposite and spaced apart in the width direction, the pair of first side walls and the second side walls enclose the docking cavity.

8. The battery connector assembly according to claim 7, wherein: One of the second side walls is provided with a limiting protrusion protruding in a direction away from the base body, and the main body is concavely provided with a notch matched with the limiting protrusion.

9. The battery connector assembly according to claim 1, wherein: The second battery connector also has a metal shell fixed on the second insulating body, and a through slot for a pull belt to pass through is formed on the metal shell or between the metal shell and the second insulating body.

10. The battery connector assembly according to claim 9, wherein: The metal shell also has a substrate portion and a pair of first snap-on portions extending from the substrate portion. The first battery connector has a pair of fixing members fixed to both sides of the first insulating body in the longitudinal direction. Each of the fixing members has a second snap-on portion that matches the corresponding first snap-on portion.

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