Power connector system having a right-angle plug connector or straight plug connector that can engage with a header connector.

Abstract

A power connector system having a right-angle plug connector or a straight plug connector matable with a header connector. A right-angle plug connector is one having a mating orientation 90 degrees to the centerline of a cable exiting the plug connector. A straight plug connector is one having a mating orientation parallel to the centerline of a cable exiting the rear of the plug connector. The header connector carries at least a female receiving terminal or receptacle formed of a highly conductive material. The female receiving terminal or receptacle includes finger members extending parallel to one another and spaced apart from one another, and further includes a stiffening spring member. The plug connector carries a male rectangular tab terminal having a short edge and a long edge. The female receiving terminal of the header connector may mate with either the short edge or the long edge of the male rectangular tab terminal of the plug connector. The other end of the male rectangular tab terminal includes a wire or cable attached thereto by welding, mechanical crimping, or the like.

Description

Technical Field

[0001] [Cross - Reference to Related Applications] This patent application claims priority to U.S. Provisional Patent Application No. 63 / 304,419, filed on January 28, 2022, and the entire content thereof is incorporated herein by reference as part of this specification.

Background Art

[0002] Connectors including a header connector 1 and a plug connector 3 are shown in the following Patent Document 1 (U.S. Patent No. 10,141,669) (and FIGS. 1A, 1B, 1C, 1D) and are fitted to each other. The mating end 5 of the plug connector 3 (see FIG. 1C) has tab terminals 7 (see FIGS. 1C and 1D), and each tab terminal 7 has a leading edge that mates with the header terminal 10 of the header connector 1 when the header connector 1 is fitted to the plug connector 3. The header terminal 10 of the header connector 1 is connected to the component 13. The header terminal 10 is visible through the mating end 18 of the header connector 1 (see FIG. 1B).

[0003] As can be seen more clearly in FIG. 1D, the header terminal 10 of the header connector 1 is in the form of a plurality of contact members arranged adjacent to each other in a stacked configuration. Each contact member has a fork contact at its mating end, and each contact member has a pair of beam members that form a socket (see U.S. Patent No. 10,141,669) for accommodating one corresponding tab terminal 7 of the plug connector 3. Each tab terminal 7 of the plug connector 3 mounted on the header terminal 10 of the header connector 1 is connected to a wire or cable 8, which is then connected to the component 11.

[0004] As further illustrated in Figure 2A, the tab terminal 7 of the plug connector 3 mates with the corresponding contact member of the header terminal 10 of the header connector 1. As described above, the contact members of the header connector 10 are arranged adjacently in a stacked configuration. In addition to the adjacent stacked configuration of the contact members of the header terminal 10 in Figure 2A, the conventional power connector system illustrated in Figure 2 requires a dual interface. That is, the conventional header terminal 10 accepts the tab terminal 7 of the conventional plug connector 3 at one end and the other tab terminal 9 of the conventional header connector 1 at the other end. For example, as shown in Figures 2B and 2C, in order to achieve a right-angle connection, the conventional header terminal 10 needs to accept the tab terminal 7 of the conventional right-angle plug connector 3 and the tab terminal 9 of the conventional header connector 1 (i.e., a dual interface connection). Furthermore, the conventional power connector system shown in Figure 2A requires three separate components, which increases the electrical resistance in the conventional power connector system shown in Figures 1A-1D and 2A-2C.

[0005] In the conventional power connector systems shown in Figures 2D and 2E, a dual interface connection and three separate components are similarly required. In Figure 2D, the conventional header terminal 10 accepts a tab terminal 7 from a conventional right-angle plug connector 3 and further accepts a tab terminal 9 from a conventional header connector 1. In Figure 2E, the conventional header terminal 10 accepts a tab terminal 7 from a conventional straight plug connector 3 and further accepts a tab terminal 9 from a conventional header connector 1. In both cases, as with Figures 2B and 2C, the conventional power connector systems in Figures 2D and 2E require a dual interface for the conventional header terminal 10 and three separate components for the conventional header terminal 10 to accept a tab terminal 7 from a right-angle or straight plug connector at one end and a straight terminal 9 at the other end. The aforementioned increase in components or elements used in the conventional power connector systems illustrated in Figures 1A-1D and 2A-2E unfavorably increases the resistance of the conventional power connector systems.

[0006] Figures 3A and 3B illustrate other types of conventional power connector systems, where the header connector has male tab terminals 20 instead, while the plug connector includes female terminals 25 and 35 to receive the male tab terminals 20 of the header connector. Here, since the female terminals 25 of the right-angle connector (see Figure 3A) and the female terminals 35 of the straight type (see Figure 3B) are structurally different, multiple types of female terminals 25 and 35 are required for conventional plug connectors. Also, in the right-angle connector shown in Figure 3A, the female terminal 25 has an outer retaining member 27 and an inner retaining member 28. In the right-angle plug connector, as shown in Figure 3A, the outer retaining member 27 differs in structure and number from the inner retaining member 28. Now, in the straight plug connector, the female terminal 35 has an outer retaining member 37 and an inner retaining member 28. In the straight plug connector, as shown in Figure 3B, the outer retaining member 37 similarly differs in structure and number from the inner retaining member 38.

[0007] Therefore, considering the aforementioned shortcomings or drawbacks of the structural arrangement of conventional power connector systems, it is necessary to have a power connector system that enables a single interface, unlike the power connector systems described in U.S. Patent No. 10,141,669 (and Figures 1A, 1B, 1C, and 1D), and conventional power connector systems described above in relation to Figures 3A and 3B, which inconveniently require dual interfaces and multiple components or elements to achieve their respective functions.

[0008] Furthermore, the power connector system requires that the terminals of the plug connectors used for both right-angle and straight-type plug connectors be identical. That is, the header connector must be able to mate with the long edge or long side of the rectangular tab terminal (in the right-angle plug connector) or with the short edge or widthwise side of the rectangular tab terminal (in the straight-type plug connector).

[0009] Furthermore, the power connector system needs to have two assembled components, rather than the three assembled components found in conventional power connector systems as shown in U.S. Patent No. 10,141,669 (see also Figures 2A-2E) and Figures 3A and 3B. More specifically, conventional power connector systems, schematically shown in Figures 2B-2E, require a dual interface (i.e., the need for upper and lower parts of the female receiving terminal) to achieve right-angle or straight connections via a header or plug connector, and also require at least three separate components. [Prior art documents] [Patent Documents]

[0010] [Patent Document 1] U.S. Patent Publication No. 10,141,669 [Overview of the project] [Means for solving the problem]

[0011] A power connector system comprising a header connector (header device, etc.) capable of receiving a right-angle plug connector or a straight plug connector. A right-angle plug connector is preferably a plug connector having a mating direction of 90 degrees with respect to the centerline of the cable exiting the plug connector. A straight plug connector is a plug connector having a mating direction parallel to the centerline of the cable exiting from the rear of the plug connector.

[0012] In a typical header connector, the connector typically holds a male tab terminal. However, in the present invention, the header connector holds a female receiving terminal or receptacle formed of a highly conductive material. The female receiving terminal or receptacle of the present invention includes a plurality of finger members that extend parallel to each other and are spaced apart from each other. The plurality of finger members extend from the connecting member and further provide a structural arrangement that acts as a reinforcing spring. Furthermore, each finger member includes an independent reinforcing spring.

[0013] In a typical plug connector, the connector usually holds a female terminal. However, in the present invention, the plug connector holds a male rectangular tab terminal, which has a short edge (or widthwise side) and a long edge (or long side). Furthermore, in the present invention, the female receiving terminal held in the header connector can mate with the short edge or widthwise side of the male rectangular tab terminal when the header connector mates with a straight plug connector. The female receiving terminal held in the header connector can mate with the long edge or long side of the male rectangular tab terminal when the header connector mates with a right-angle plug connector. The other end of the male rectangular tab terminal contains a wire or cable attached thereto by welding, mechanical crimping, or the like. [Brief explanation of the drawing]

[0014] [Figure 1A] Figure 1A shows a conventional power connector system in a transparent view of a header connector including a plug connector with female receiving terminals and male tab terminals, showing that the header connector and plug connector of this conventional power connector system are ready to engage or mate. [Figure 1B] Figure 1B is a perspective view of the mating side of a conventional header connector, showing the female receiving terminal held inside. [Figure 1C] Figure 1C is a perspective view of the mating side of a conventional plug connector, showing the male tab terminals held inside. [Figure 1D]Figure 1D shows a conventional plug connector's male tab terminal engaged with a conventional header connector's female terminal, the other end of which is connected to a cable, and each female terminal is formed by multiple contact members arranged adjacently in a stacked configuration. [Figure 2A] Figure 2A is a perspective view illustrating the male tab terminals of a conventional right-angle plug connector engaged with the female receiving terminals of a conventional header connector. [Figure 2B] Figure 2A is a schematic diagram of a conventional plug connector, illustrating that in conventional power connector systems, a dual interface and at least three separate components are necessary to achieve right-angle or straight-type connections. [Figure 2C] Figure 2A is a schematic diagram of a conventional plug connector, illustrating that in conventional power connector systems, a dual interface and at least three separate components are necessary to achieve right-angle or straight-type connections. [Figure 2D] Figure 2A is a schematic diagram of a conventional plug connector, illustrating that in conventional power connector systems, a dual interface and at least three separate components are necessary to achieve right-angle or straight-type connections. [Figure 2E] Figure 2A is a schematic diagram of a conventional plug connector, illustrating that in conventional power connector systems, a dual interface and at least three separate components are necessary to achieve right-angle or straight-type connections. [Figure 3A] Figure 3A shows a male tab terminal that will be held by another conventional header connector, and a female receiving terminal that will be held by another conventional right-angle plug connector, where the male tab terminal of the other conventional header connector and the female receiving terminal of the other conventional right-angle plug connector are to engage or mate with each other. [Figure 3B]Figure 3B shows a male tab terminal that is to be held by another conventional header connector and a female receiving terminal that is to be held by another conventional straight plug connector, and the male tab terminal of the other conventional header connector and the female receiving terminal of the other conventional straight plug connector are to be engaged or mated with each other. [Figure 4] Figure 4 is a perspective view showing the female receiving terminal of the present invention that is to be held inside the header connector of the present invention. [Figure 5] Figure 5 is a perspective view of the outer member or sheath of the female receiving terminal of the present invention. [Figure 6] Figure 6 is a perspective view of the inner member of the female receiving terminal of the present invention. [Figure 7A] Figure 7A illustrates that the long edge or long side of the rectangular male terminal of the right angle type plug connector of the present invention is ready to be received, mated or engaged by the female receiving terminal of the header connector of the present invention. [Figure 7B] Figure 7B illustrates that the short edge or width direction side of the rectangular male terminal of the straight plug connector of the present invention is ready to be received, mated or engaged by the female type receiving terminal of the header connector of the present invention. [Figure 8] Figure 8 shows that the mating side of the right angle type plug connector of the present invention is in a direction perpendicular or 90 degrees to the direction in which the cable extends. [Figure 9] Figure 9 shows the corresponding male tab rectangular terminals in a state where the cable is connected, and the long edge or long side of each male tab rectangular terminal is ready to be received by one of the corresponding female receiving terminals of the header connector of the present invention. [Figure 10] Figure 10 shows that the mating side of the straight plug connector of the present invention is in a direction parallel or 180 degrees to the direction in which the cable extends. [Figure 11] Figure 11 shows the corresponding male tab rectangular terminals in a state where the cable is connected, and the short edge or width direction side of each male tab rectangular terminal is ready to be received by one of the corresponding female receiving terminals of the header connector of the present invention. [Modes for carrying out the invention]

[0015] Figure 4 illustrates a female receiving terminal, generally referred to by reference numeral 80, in a perspective view. The female receiving terminal 80 includes a receiving end 88, which includes an outer member (or sheath) 90 and an inner member 110. The outer member (or sheath) 90 includes a plurality of outer finger members 92 that extend parallel to each other and are spaced apart from each other. The outer finger members 92 have a free end 94 and a joining end 98 to which the other end 100 of the outer finger member 92 (different from the free end 94) is joined. The joining end 98 is attached to a base end 105 which has an end opening 108 into which the inner member 110 is introduced and fitted. The inner member 110 includes a bar-shaped member 115, which is connected inside the header connector 200 (see Figures 8 and 10). The female receiving terminal 80 consists of a single coupling element (i.e., its body and accompanying spring-reinforced finger members 92, 122) such that its receiving end is coaxial with the body of the terminal, or its mating end is rotated 0 degrees from the body.

[0016] In the present invention, the electrical resistance of the power connector system is low because the number of components used is kept to a minimum. That is, for example, only one female receiving terminal 80 (or a set of multiple female receiving terminals 80) is used for either the right-angle plug connector 300 (see Figure 8) or the straight plug connector 500 (see Figure 10). Furthermore, for either the right-angle plug connector 300 (see Figure 8) or the straight plug connector 500 (see Figure 10), a single-type header connector 200 (Figures 8, 10) equipped with a single-type female receiving terminal 80 (see Figures 7A, 7B, 9, and 11) is used. Thus, the assembly efficiency of the power connector system of the present invention is achieved, the electrical resistance of the power connector system of the present invention is reduced, and the overall size of the power connector system of the present invention is reduced.

[0017] Figure 5 illustrates an outer member (or sheath) 90, which includes a plurality of outer finger members 92 extending parallel to each other and spaced apart from one another. Each outer finger member 92 is preferably straight when extending from a joint end 98. Connected to the joint end 98 is a base end 105. The base end 105 supports the flexibility or elastic properties of the outer finger members 92 and can act as a spring reinforcement for the outer finger members 92. The outer finger members 92 similarly support the flexibility or elastic properties of the inner finger members 122 and can act as a spring reinforcement for the inner finger members 122. One end of the outer member (or sheath) 90 is the free end 94 of the outer finger member, while the opposite end of the outer member (or sheath) 90 is an end opening 108 that receives a symmetrical upper fork-shaped member 130 and lower fork-shaped member 140 having the inner finger members 122 of the inner member 110, as shown in Figure 6.

[0018] In Figure 6, the inner member 110 includes a plurality of inner finger members 122 at the receiving end 125 of the inner member 110, opposite to the other end containing the bar-shaped member 115. The inner member 110 consists of a symmetrical upper fork-shaped member 130 and a lower fork-shaped member 140 that are joined together, as illustrated in Figure 6. Each pair of finger members 122 of the upper fork-shaped member 130 extends from the upper intermediate member 135, while the pair of finger members 122 of the lower fork-shaped member 140 extends from the lower intermediate member 145. Both the upper intermediate member 135 and the lower intermediate member 145 extend from the upper bar-shaped member 150 and the lower bar-shaped member 155, respectively, and these both constitute the bar-shaped member 115 that connects to the header connector 200 (see Figures 8 and 10).

[0019] Furthermore, each of the outer finger members 92 and the inner finger members 122 has an independent reinforcing spring based on its own physical structure and the way in which they are structurally positioned with the connecting member 98 and the base end 105 (see Figure 5), or the way in which they are structurally positioned with the upper intermediate member 135 of the upper fork-shaped member 130 and the lower intermediate member 145 of the lower fork-shaped member 140 (see Figure 6). The outer finger members 92 and the inner finger members 122 are in contact with each other such that each outer finger member 92 has a corresponding in contact with the inner finger member 122.

[0020] While not limited, the width and thickness of each outer finger member 92 extending from the joint end 98 are substantially similar. Also, while not limited, the width, thickness, and shape of the inner finger members 122 extending from the upper intermediate member 135 and the lower intermediate member 145 are substantially similar. As shown in Figure 6, although the shape is not limited, it is preferable that the receiving end 125 of each inner finger member 122 of the inner member 110 is substantially curved upward.

[0021] Furthermore, the outer finger member 92 and the inner finger member 122 also have twice the thickness of the receiving end 88 of the female receiving terminal 80, which is made of a highly conductive material, along with their own spring-like properties and spring-reinforcement properties. This advantageously reduces the electrical resistance of the power connector system of the present invention.

[0022] When assembled, as shown in Figure 4, the inner finger member 122 of the inner member 110 extends beyond the free end 94 of the outer finger member 92 of the outer member or sheath 90. Also, when assembled, as shown in Figure 4, with the corresponding male tab terminals 310, 320 (see Figures 7A, 7B, 9, and 11) accepted, if the inner finger member 122 is moved outward and pushed into the interior of the outer finger member 92, the outer finger member 92 has elasticity to such movement, thereby providing resistance and a reinforced spring-like action to the receiving end 88 of the female receiving terminal 80.

[0023] Figure 7A illustrates that the long edge or long side 305 of the rectangular male terminal 310 of the right-angle plug connector 300 of the present invention (see Figure 8) is ready to be received by the female receiving terminal 80 of the header connector 200 of the present invention (see Figure 8) and to be mated or engaged. More specifically, the rectangular male terminal 310 is received by the receiving end 88 of the female receiving terminal 80. That is, the free end 94 of the finger member 92 of the female receiving terminal 80 receives the rectangular male terminal 310, which has its long edge or long side 305 introduced into the multiple finger members 92 of the female receiving terminal 80 held inside the header connector 200.

[0024] Also shown in Figure 7A are a cable 400 attached to one end 350 of a rectangular male terminal 310 held inside a right-angle plug connector 300 (see Figure 8), and a bar-shaped member 115 of a female receiving terminal 80 connected inside a header connector 200 (see Figure 8).

[0025] Figure 7B illustrates that the short edge or widthwise side 315 of the rectangular male terminal 320 of the straight plug connector 500 of the present invention (see Figure 10) is ready to be received by the female receiving terminal 80 of the header connector 200 of the present invention (see Figure 10) and to be mated or engaged. More specifically, the rectangular male terminal 320 is received by the receiving end 88 of the female receiving terminal 80. That is, the free end 94 of the finger member 92 of the female receiving terminal 80 receives inside the rectangular male terminal 310, which has the short edge or widthwise side 315 of the rectangular male terminal 320 introduced into the multiple finger members 92 of the female receiving terminal 80 held inside the header connector 200.

[0026] Also shown in Figure 7B are a cable 410 attached to one end 355 of a rectangular male terminal 320 held inside a straight plug member 500 (see Figure 10), and a bar-shaped member 115 of a female receiving terminal 80 connected inside a header connector 200 (see Figure 10).

[0027] It should be noted that the header connector 200 can accept either a rectangular male terminal 310 (see Figure 7A) held in a right-angle plug connector 300 (see Figure 8), or a rectangular male terminal 320 (see Figure 7B) held in a straight plug connector 500 (see Figure 10), as shown in either Figure 8 or Figure 10.

[0028] Alternatively, the rectangular male terminal 310 (see Figures 7A and 9) attached to the cable 400 and held inside the right-angle plug connector 300 (see Figure 8) may be the same as the rectangular male terminal 320 (see Figures 7B and 10) attached to the cable 410 and held inside the straight plug connector 500 (see Figure 10).

[0029] In the present invention, as illustrated in Figures 7A, 7B, 9, and 11, a single male tab terminal 310, 320 may be used for a right-angle plug connector 300 (see Figure 8) or a straight plug connector 500 (see Figure 10). Therefore, no additional male tab terminals (or elements such as bridges or tab sockets) are required for use with the right-angle plug connector 300 and the straight plug connector 500, thereby providing a single interface for the entire power connector system of the present invention. Minimizing the number of parts or elements in the power connector system of the present invention favorably reduces the electrical resistance of the system.

[0030] Furthermore, minimizing the number of parts or elements in the power connector system of the present invention is achieved by using a single (or single-type) male tab terminal 310, 320 in the right-angle plug connector 300 (see Figure 8) or the straight plug connector 500 (see Figure 10) (see Figures 7A, 7B, 9, and 11), thereby streamlining the assembly of the power connector system of the present invention.

[0031] Furthermore, in Figures 7A, 7B, 9, and 11, the other ends of the rectangular male terminals (or rectangular male tab terminals) 310, 320 may include wires or cables 400, 410 attached thereto by welding, mechanical crimping, or the like.

[0032] It should be noted that the present invention is not limited to the embodiments described above, and various design and configuration changes can be made without departing from the spirit of the invention. For example, the right-angle plug connector 300 or the straight plug connector 500 may each hold one or more male tab terminals 310, 320. Similarly, the header connector 200 may hold one or more female receiving terminals 80.

Claims

1. A right-angle plug connector having at least a male rectangular tab terminal, The system is characterized by comprising a header connector having at least a female receiving terminal for receiving at least the aforementioned male rectangular tab terminal to complete the power connector system, The female receiving terminal includes a plurality of finger members extending parallel to each other and spaced apart from each other at the mating end, wherein the plurality of finger members include a linear first finger member extending from the first connecting member and a second finger member positioned inside the first finger member. A power connector system characterized in that the second finger member includes a symmetrical upper fork-shaped member and a lower fork-shaped member, the first pair of the second finger members extending from the upper intermediate member of the upper fork-shaped member, the second pair of the second finger members extending from the lower intermediate member of the lower fork-shaped member, the upper intermediate member extending from the upper bar-shaped member, the lower intermediate member extending from the lower bar-shaped member, and the upper bar-shaped member and the lower bar-shaped member being coupled to each other and forming a bar-shaped member connected to the header connector.

2. The power connector system according to claim 1, characterized in that the male rectangular tab terminal has a short edge or widthwise side and a long edge or long side.

3. The power connector system according to claim 2, characterized in that when the right-angle plug connector engages or mates with the header connector, the female receiving terminal accepts the male rectangular tab terminal while the engagement or mating is taking place, the female receiving terminal accepts the long edge or long side of the male rectangular tab terminal.

4. The plurality of finger members of the female receiving terminal are characterized by being composed of first finger members of an outer member or sheath, which extend parallel to each other at a distance from each other, and second finger members of an inner member, which extend parallel to each other at a distance from each other. The power connector system according to claim 1, characterized in that the first finger member and the second finger member are combined with each other to form the plurality of finger members of the female receiving terminal for elastically engaging or mating with the male rectangular tab terminal of the right-angle plug connector.

5. The power connector system according to claim 4, characterized in that the first finger member extends from the first coupling member of the outer member or the sheath, and the second finger member extends from the second coupling member of the inner member.

6. The power connector system according to claim 5, characterized in that the first coupling member of the outer member or sheath is connected to a reinforcing spring.

7. A straight plug connector having at least a male rectangular tab terminal, The system is characterized by comprising a header connector having at least a female receiving terminal for receiving at least the aforementioned male rectangular tab terminal to complete the power connector system, The female receiving terminal includes a plurality of finger members extending parallel to each other and spaced apart from each other at the mating end, wherein the plurality of finger members include a linear first finger member extending from the first connecting member and a second finger member positioned inside the first finger member. A power connector system characterized in that the second finger member includes a symmetrical upper fork-shaped member and a lower fork-shaped member, the first pair of the second finger members extending from the upper intermediate member of the upper fork-shaped member, the second pair of the second finger members extending from the lower intermediate member of the lower fork-shaped member, the upper intermediate member extending from the upper bar-shaped member, the lower intermediate member extending from the lower bar-shaped member, and the upper bar-shaped member and the lower bar-shaped member being coupled to each other and forming a bar-shaped member connected to the header connector.

8. The power connector system according to claim 7, characterized in that the male rectangular tab terminal has a short edge or widthwise side and a long edge or long side.

9. The power connector system according to claim 8, characterized in that when the straight plug connector engages with or mates with the header connector, and the female receiving terminal receives the male rectangular tab terminal while the engagement or mating is taking place, the female receiving terminal receives the short edge or widthwise side of the male rectangular tab terminal.

10. The plurality of finger members of the female receiving terminal are characterized by being composed of first finger members of an outer member or sheath, which extend parallel to each other at a distance from each other, and second finger members of an inner member, which extend parallel to each other at a distance from each other. The power connector system according to claim 7, characterized in that the first finger member and the second finger member are combined with each other to form the plurality of finger members of the female receiving terminal for elastically engaging or mating with the male rectangular tab terminal of the straight plug connector.

11. The power connector system according to claim 10, characterized in that the first finger member extends from the first coupling member of the outer member or the sheath, and the second finger member extends from the second coupling member of the inner member.

12. The power connector system according to claim 11, characterized in that the first coupling member of the outer member or sheath is connected to a reinforcing spring.

13. The power connector system according to claim 7, characterized in that each of the finger members includes an independent reinforcing spring.

14. A plug connector having at least a male rectangular tab terminal, and being one of a right-angle type plug connector and a straight type plug connector, The system is characterized by comprising a header connector having at least a female receiving terminal for receiving at least the male rectangular tab terminal to complete the power connector system, The female receiving terminal includes a plurality of finger members extending parallel to each other and spaced apart from each other at the mating end, wherein the plurality of finger members include a linear first finger member extending from the first connecting member and a second finger member positioned inside the first finger member. A power connector system characterized in that the second finger member includes a symmetrical upper fork-shaped member and a lower fork-shaped member, the first pair of the second finger members extending from the upper intermediate member of the upper fork-shaped member, the second pair of the second finger members extending from the lower intermediate member of the lower fork-shaped member, the upper intermediate member extending from the upper bar-shaped member, the lower intermediate member extending from the lower bar-shaped member, and the upper bar-shaped member and the lower bar-shaped member being coupled to each other and forming a bar-shaped member connected to the header connector.

15. The power connector system according to claim 14, characterized in that the male rectangular tab terminal has a short edge or widthwise side and a long edge or long side.

16. When the right-angle plug connector engages with or mates with the header connector, and the female receiving terminal of the header connector accepts the male rectangular tab terminal during the engagement or mating, the female receiving terminal accepts the long edge or long side of the male rectangular tab terminal. The power connector system according to claim 15, characterized in that when the straight plug connector engages with or mates with the header connector, and the female receiving terminal of the header connector accepts the male rectangular tab terminal while the engagement or mating is taking place, the female receiving terminal accepts the short edge or widthwise side of the male rectangular tab terminal.

17. The plurality of finger members of the female receiving terminal are characterized by being composed of first finger members of an outer member or sheath, which extend parallel to each other at a distance from each other, and second finger members of an inner member, which extend parallel to each other at a distance from each other. The power connector system according to claim 14, characterized in that the first finger member and the second finger member are combined with each other to form a plurality of finger members of the female receiving terminal of the header connector for elastic engagement or mating with the male rectangular tab terminal of the plug connector.

18. The power connector system according to claim 17, characterized in that the first finger member extends from the first coupling member of the outer member or the sheath, and the second finger member extends from the second coupling member of the inner member.

19. The power connector system according to claim 17, characterized in that the first coupling member of the outer member or sheath is connected to a reinforcing spring.

20. The power connector system according to claim 18, characterized in that each of the plurality of finger members includes an independent reinforcing spring.

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