Power connector

Abstract

The invention provides a power connector which comprises an insulating body and at least one power terminal pair, the insulating body is provided with a terminal groove extending in the front-back direction, and the power terminal pair is fixed in the terminal groove of the insulating body. Each power supply terminal pair comprises an upper-row terminal assembly and a lower-row terminal assembly, contact arms of the upper-row terminal assembly and the lower-row terminal assembly are oppositely arranged along the height direction, and each of the upper-row terminal assembly and the lower-row terminal assembly comprises a first terminal and a second terminal; each of the first terminal and the second terminal is provided with a base body part and at least one contact arm formed by forwards extending from the base body part; the width of the base parts of the first and second terminals in the transverse direction is not less than 10% of the width of the insulating body in the transverse direction. According to the power supply connector, conductor paths can be effectively increased in a limited width range, and heating of the power supply terminals is inhibited.

Description

Technical Field

[0001] The invention relates to a power connector. Background Art

[0002] A conventional power connector comprises an insulating body and a plurality of power terminal pairs fixed in the insulating body. Each power terminal comprises a base portion and at least one elastic contact arm extending forward from the base portion. When the power terminal transmits a larger current, the power terminal is prone to excessive heat energy generated by the current impedance due to limited conductor paths, thereby exceeding the temperature range that the power connector can withstand, and is difficult to adapt to the use requirements of a high-power environment.

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

[0004] An object of the present invention is to provide a power connector capable of increasing conductor paths within a limited width and suppressing heat generation of power terminals.

[0005] To achieve the above-mentioned purpose of the invention, the present invention provides a power connector, which includes an insulating body and at least one power terminal pair, the insulating body having a terminal groove extending in the front-to-back direction, the power terminal pair being fixed in the terminal groove of the insulating body, each power terminal pair including an upper row terminal assembly and a lower row terminal assembly with contact arms arranged relatively in the height direction, each of the upper row terminal assembly and the lower row terminal assembly including a first terminal and a second terminal, each of the first terminal and the second terminal having a base portion and at least one contact arm extending forward from the base portion; the width of the base portion of the first and second terminals in the lateral direction is not less than 10% of the width of the insulating body in the lateral direction.

[0006] As a further improvement of the present invention, the width of the base parts of the first and second terminals in the transverse direction is not less than 30% of the width of the insulating body in the transverse direction.

[0007] As a further improvement of the present invention, the contact arms of each of the upper row terminal assemblies and the lower row terminal assemblies are arranged into at least two groups arranged side by side in the transverse direction, and the spacing between two adjacent groups of contact arms is greater than the spacing between two adjacent contact arms in the same group.

[0008] As a further improvement of the present invention, the contact arms of each of the first terminal and the second terminal are arranged into at least two groups arranged side by side in the lateral direction, and the spacing between two adjacent groups of contact arms in the lateral direction is greater than the spacing between two adjacent contact arms in the same group.

[0009] As a further improvement of the present invention, at least one partition wall is provided in each of the terminal grooves, and the partition wall separates two adjacent groups of contact arms in a transverse direction.

[0010] As a further improvement of the present invention, the insulating body has a transverse wall extending along the transverse direction, and the transverse wall divides the terminal groove into two groups corresponding to the upper row of terminal assemblies and the lower row of terminal assemblies respectively. Each of the partition walls extends along the front-to-back direction and has a connecting portion connected to the transverse wall.

[0011] As a further improvement of the present invention, the second terminal is provided with a groove formed by being recessed backwards, the groove is recessed backwards from the front end of the base portion, and the connecting portion is inserted backwards into the groove.

[0012] As a further improvement of the present invention, each of the partition walls includes a first partition located on the front side of the connecting portion and a second partition located on the rear side of the connecting portion, and the second partition is inserted backward into the spacing space of the base portions of the corresponding first and second terminals in the height direction, so that the base portion is clamped in the height direction by two adjacent ones of the second partition, the transverse wall, the top wall of the insulating body, and the bottom wall of the insulating body.

[0013] As a further improvement of the present invention, in the same terminal assembly, at least a portion of the contact arm of the second terminal extends into the gap between two adjacent contact arms of the first terminal.

[0014] In order to achieve the above-mentioned purpose of the invention, the present invention also provides a power connector, which includes an insulating body and at least one power terminal pair, the insulating body having a power transmission cavity for accommodating the power terminal pair, the power terminal pair being fixed in a terminal groove of the insulating body, the power transmission cavity being connected to the terminal groove, each power terminal pair including an upper row terminal assembly and a lower row terminal assembly with contact arms arranged relatively in a height direction, each of the upper row terminal assembly and the lower row terminal assembly including a first terminal and a second terminal, each of the first terminal and the second terminal having a base portion and at least one contact arm extending forward from the base portion; the width of the base portion of the first and second terminals in the lateral direction is not less than 15% of the width of the power transmission cavity in the lateral direction.

[0015] Beneficial effects of the present invention: The power connector of the present invention increases the relative area of ​​each terminal assembly in the lateral direction by setting the width of the base portion of the first and second terminals in the lateral direction to be no less than 10% of the width of the insulating body in the lateral direction or no less than 15% of the width of the power transmission cavity in the lateral direction, thereby effectively increasing the conductive path of the terminal assembly within a limited width range and suppressing the heating of the power terminal, thereby enhancing the current carrying capacity of the power connector and meeting high-power usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional assembly diagram of the power connector of the present invention.

[0017] Figure 2 yes Figure 1 Another view of the power connector shown.

[0018] Figure 3 yes Figure 1 Exploded perspective view of the power connector shown.

[0019] Figure 4 yes Figure 3 A partially exploded view of one terminal assembly of the power connector shown.

[0020] Figure 5 yes Figure 4 Further exploded view of the terminal assembly shown.

[0021] Figure 6 yes Figure 3 A top view of one terminal assembly of the power connector is shown.

[0022] Figure 7 yes Figure 3 A top view of a first terminal in an upper row of terminal assemblies of the power connector is shown.

[0023] Figure 8 yes Figure 3 A partial enlarged view of the insulating body of the power connector shown.

[0024] Fig. 9 yes Figure 3 A cross-sectional view of the insulating body of the power connector is shown.

[0025] Fig.10 yes Figure 1 A cross-sectional view of the power connector is shown.

[0026] Fig.11 yes Figure 1 Another cross-sectional view of the power connector shown. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below in conjunction with the embodiments shown in the accompanying drawings. However, the embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on the embodiments are all within the protection scope of the present invention.

[0028] Please refer to Figures 1 to 11 The figure shows a preferred embodiment of the power connector 100 of the present invention. In some embodiments of the present invention, the power connector 100 includes an insulating body 1 and at least one power terminal pair 2 , and the power terminal pair 2 is fixed in the insulating body 1 .

[0029] For ease of explanation, when introducing the power connector 100 below, the docking direction of the power connector 100 will be regarded as the front-to-back direction, a direction perpendicular to the front-to-back direction will be regarded as the lateral direction, and another direction perpendicular to the front-to-back direction will be regarded as the height direction.

[0030] Please refer to Figures 1 to 3 , Figures 8 to 11 As shown, the insulating body 1 has a terminal groove 101 extending along the front-to-back direction, and the power terminal pair 2 is fixed in the terminal groove 101 of the insulating body 1.

[0031] like Figure 8 and Fig. 9 As shown, in the present invention, each of the terminal slots 101 is provided with at least one partition wall 102 to divide each terminal slot 101 into at least two terminal channels 1012. In the embodiment shown in the present application, two of the partition walls 102 are provided in each terminal slot 101 to divide one terminal slot 101 into three terminal channels 1012. In other embodiments, each terminal slot 101 may also be divided into two, four or more terminal channels 1012 by the partition walls 102.

[0032] The insulating body 1 has a transverse wall 103 extending in a transverse direction, and the transverse wall 103 divides the terminal slot 101 into two upper and lower groups. Each of the partition walls 102 extends in a front-to-back direction and has a connecting portion 1021 connected to the transverse wall 103 .

[0033] Each of the partition walls 102 includes a first partition portion 1022 located in front of the connecting portion 1021 and a second partition portion 1023 located in rear of the connecting portion 1021 . The first partition portion 1022 is integrally connected to the top wall 104 or the bottom wall 105 of the insulating body 1 .

[0034] Furthermore, the front end of the second spacer 1023 is connected to the connecting portion 1021 and is in a cantilever structure extending backward. The second spacer 1023 is in a vertically placed flat plate structure, that is, its width in the lateral direction is smaller than its height in the height direction.

[0035] like Fig. 9 and Fig.11 As shown, the first spacer portion 1022 has a guide surface 1024 located on the front side and an extension surface 1025 located on the rear side, the guide surface 1024 is inclined at an angle to the horizontal plane, the extension surface 1025 is parallel to the horizontal plane, and the extension length of the guide surface 1024 in the front-to-back direction is greater than the extension length of the extension surface 1025 in the front-to-back direction, so as to achieve better guiding effect on the front side, thereby adapting to the increase in the width of the base portion 202.

[0036] In the height direction, the distance between the extension surface 1025 and the transverse wall 103 is smaller than the distance between the corresponding second spacer 1023 and the transverse wall 103, thereby increasing the arc creeping distance at the corresponding position of the contact arm 201 of the power terminal and ensuring the safety and reliability of the electrical connection.

[0037] The rear end face of the first spacer 1022 is located between the front end face and the rear end face of the connecting portion 1021 in the front-to-back direction, the second spacer 1023 located on the upper side extends backwards to be flush with the top wall 104, the rear end face of the transverse wall 103 is arranged flush with the rear end face of the top wall 104, and the second spacer 1023 located on the lower side extends backwards to be flush with the bottom wall 105.

[0038] The transverse wall 103 has a notch 1031 at the lower side thereof. The notch 1031 is formed by being recessed forward from the rear end surface of the transverse wall 103 . In the front-to-back direction, the notch 1031 is located at the rear side of the bottom wall 105 .

[0039] Please refer to Figures 1 to 7 and Figure 10 to Figure 11 As shown, each power terminal pair 2 includes an upper row terminal assembly 2a and a lower row terminal assembly 2b arranged opposite to each other along the height direction of the contact arm 201. The transverse wall 103 divides the terminal slot 101 into two groups corresponding to the upper row terminal assembly 2a and the lower row terminal assembly 2b respectively.

[0040] Each of the upper terminal assembly 2a and the lower terminal assembly 2b includes a first terminal 21 and a second terminal 22. Each of the first terminal 21 and the second terminal 22 has a base portion 202 and at least one contact arm 201 extending forward from the base portion 202.

[0041] In this embodiment, the base portion 202 has an interference portion 2021 fixed to the insulating body 1 , and the interference portion 2021 is disposed on both sides of the base portion 202 in the lateral direction.

[0042] Each of the upper terminal assembly 2a and the lower terminal assembly 2b is called a terminal assembly, each of the first and second terminals 21 and 22 is called a power terminal, and each power terminal is a sheet-like structure extending in the lateral direction. In the present invention, the base portion 202 is the largest part of each power terminal in the lateral direction.

[0043] In the present invention, in each terminal assembly, the base portion 202 of the first terminal 21 is disposed close to the transverse wall 103 in the height direction, and the base portion 202 of the second terminal 22 is disposed away from the transverse wall 103 in the height direction.

[0044] In this embodiment, each of the first terminal 21 and the second terminal 22 further comprises an extension portion 203 formed by bending and extending from the base portion 202, and the extension portion 203 is located at the rear side of the base portion 202. In addition, each of the first and second terminals 21 and 22 further comprises a solder foot 204 formed by extending downward from the extension portion 203, and the extension direction of the solder foot 204 is perpendicular to the extension direction of the contact arm 201.

[0045] like Figure 4 and Fig.10 As shown, the width W1 of the base portion 202 of the first and second terminals 21 and 22 in the lateral direction is not less than 10% of the width W2 of the insulating body 1 in the lateral direction. Therefore, by setting the width of the base portion 202 of the power terminal in the lateral direction to be wider, the conductor area is increased, thereby effectively increasing the conductive path of the terminal assembly and suppressing the heating of the power terminal.

[0046] Furthermore, the width W1 of the base portion 202 of the first and second terminals 21 and 22 in the lateral direction is not less than 20% of the width W2 of the insulating body 1 in the lateral direction, thereby increasing the cross-sectional area of ​​the power terminal, reducing resistance, reducing heat, and effectively improving the current carrying capacity of the power terminal.

[0047] Furthermore, in a preferred embodiment of the present invention, the width W1 of the base portion 202 of the first and second terminals 21 and 22 in the lateral direction is not less than 30% of the width W2 of the insulating body 1 in the lateral direction. By maximizing the width of the power terminal in the lateral direction, the conductive path is increased, thereby effectively suppressing the heating of the power terminal.

[0048] Ginseng Figures 3 to 6As shown, the contact arms 201 of each of the upper row terminal assemblies 2a and the lower row terminal assemblies 2b are arranged into at least two groups arranged side by side in the transverse direction, as shown in FIG. Figure 6 As shown, each group of contact arms 201 is Figure 6 In the diagram, which is marked as G, the distance between two adjacent groups of contact arms 201 is greater than the distance between two adjacent contact arms 201 in the same group.

[0049] The present application increases the conductor area of ​​each terminal assembly in the lateral direction by configuring each terminal assembly to have a base portion 202 and at least two groups of contact arms 201 extending forward from the front end of the base portion 202, thereby effectively increasing the conductive path of the terminal assembly and suppressing the heating of the power terminal.

[0050] In this embodiment, the partition wall 102 separates two adjacent groups of contact arms 201 in the transverse direction. Specifically, the first partition 1022 separates two adjacent groups of contact arms 201 in the transverse direction of the same terminal assembly. The notch 1031 is provided at a position corresponding to the bent portion of the second terminal 22 of the lower row of terminal assemblies 2b, thereby making the assembly process smoother and preventing the bent portion from interfering with the transverse wall 103.

[0051] Please refer to Figure 5 and Figure 7 As shown, the contact arms 201 of each of the first terminal 21 and the second terminal 22 are arranged in at least two groups arranged side by side in the transverse direction, and each group of contact portions 201 in each power terminal is arranged in a Figure 7 is marked as g, such as Figure 7 As shown, the distance D1 between two adjacent groups of contact arms 201 in the lateral direction is greater than the distance D2 between two adjacent contact arms 201 in the same group, so that after the terminal assembly is formed, the contact arms 201 of the first and second terminals 21 and 22 can be arranged into at least two groups and can be cross-arranged to achieve balanced plugging and unplugging force.

[0052] In addition, in some embodiments of the present invention, the second terminal 22 is provided with a groove 205 that is recessed backwards. The groove 205 is recessed backwards from the front end of the base portion 202 , and the connecting portion 1021 is inserted backwards into the groove 205 .

[0053] In the embodiment shown in the present invention, the first terminal 21 also has a groove 205 formed by being recessed backward from the front end of its base portion 202, and the first spacer 1022 is inserted backward into the groove 205 of the first terminal 21 to further limit the power terminal in the lateral direction.

[0054] The second spacing portion 1023 is inserted backward into the spacing space in the height direction of the base portion 202 of the corresponding first and second terminals 21 and 22, so that the base portion 202 is clamped in the height direction by two adjacent ones of the second spacing portion 1023, the lateral wall 103, the top wall 104 of the insulating body 1, and the bottom wall 105 of the insulating body 1, thereby further limiting the power terminal in the height direction.

[0055] The base portion 202 of the first terminal 21 in the upper row terminal assembly 2a is clamped between the top wall of the insulating body 1 and the second spacing portion 1023 in the height direction, and the base portion 202 of the second terminal 22 in the upper row terminal assembly 2a is clamped between the second spacing portion 1023 and the transverse wall 103 in the height direction.

[0056] The base portion 202 of the first terminal 21 in the lower row terminal assembly 2b is clamped between the second spacing portion 1023 and the bottom wall of the insulating body 1 in the height direction, and the base portion 202 of the second terminal 22 in the lower row terminal assembly 2b is clamped between the second spacing portion 1023 and the transverse wall 103 in the height direction.

[0057] In addition, in some embodiments of the power connector 100 of the present invention, the insulating body 1 has a power transmission cavity 10 for accommodating the power terminal pair 2, and the power transmission cavity 10 is connected to the terminal slot 101. Fig.10 As shown, the width W1 of the base portion 202 of the first and second terminals 21 and 22 in the transverse direction is not less than 15% of the width W3 of the power transmission cavity 10 in the transverse direction.

[0058] In this way, the power connector 100 of the present invention sets the width W1 of the base portion 202 of the power terminal in the lateral direction to be no less than 15% of the width W3 of the power transmission cavity in the lateral direction, thereby arranging the single-piece power terminal as wide as possible within the limited width range of the power transmission cavity 10, thereby achieving an increase in the conductive path and suppressing the heating of the power terminal.

[0059] Furthermore, the width W1 of the base portion 202 of the first and second terminals 21 and 22 in the lateral direction is not less than 30% of the width W3 of the power transmission cavity 10 in the lateral direction, thereby arranging the monolithic power terminal wider within the limited width range of the power transmission cavity 10, thereby more effectively improving the current carrying capacity of the power terminal.

[0060] Furthermore, the width W1 of the base portion 202 of the first and second terminals 21 and 22 in the lateral direction is not less than 45% of the width W3 of the power transmission cavity 10 in the lateral direction, so that the monolithic power terminal is arranged as wide as possible within the limited width range of the power transmission cavity 10, thereby more effectively improving the current carrying capacity of the power terminal.

[0061] In this embodiment, in the same terminal assembly, at least a portion of the contact arm 201 of the second terminal 22 extends into the gap between two adjacent contact arms 201 of the first terminal 21 .

[0062] Specifically, if Figure 3 and Figure 4 As shown, in some embodiments, in the same terminal assembly, the contact arms 201 of the first and second terminals 21 and 22 are arranged alternately; in other embodiments, the contact arms 201 of the second terminal 22 can also be divided into two groups spaced apart in the transverse direction, and the contact arms 201 of the first terminal 21 are arranged between the two groups of contact arms 201 of the second terminal 22 in the transverse direction; in other embodiments, in the same terminal assembly, the contact arms 201 of the first terminal 21 can also be arranged adjacent to each other, and the contact arms 201 of the second terminal 22 can also be arranged adjacent to each other, and the contact arms 201 of the first terminal 21 can be arranged on one side of the contact arms 201 of the second terminal 22 in the transverse direction.

[0063] In some embodiments of the present invention, the insulating body 1 further has a plurality of heat dissipation channels 106 opened on the top wall thereof, and the heat dissipation channels 106 penetrate the top wall along the height direction to dissipate the heat generated by powering on the power terminal pair 2 as quickly as possible.

[0064] In the present invention, the power connector 100 further comprises a plurality of signal terminals 3 located at one side of the power terminal pair 2 in the lateral direction, and each of the signal terminals 3 comprises a docking arm 31 and a welding portion 32 .

[0065] In addition, in a modified embodiment of the power connector 100 of the present invention, the power connector 100 is the same as the aforementioned embodiment in that it includes an insulating body 1 and at least one power terminal pair 2, the insulating body 1 having a terminal groove 101 extending in the front-to-back direction, the power terminal pair 2 being fixed in the terminal groove 101 of the insulating body 1, each power terminal pair 2 including an upper row terminal assembly 2a and a lower row terminal assembly 2b having contact arms 201 arranged opposite to each other in the height direction, each of the upper row terminal assembly 2a and the lower row terminal assembly 2b including a first terminal 21 and a second terminal 22, each of the first terminal 21 and the second terminal 22 having a base portion 202 and at least one contact arm 201 extending forward from the base portion 202.

[0066] The difference is that, in this variant embodiment, in the same terminal assembly 2a, 2b, each of the contact arms 201 of the first and second terminals 21, 22 has only one group, that is, each contact arm 201 is evenly arranged in the transverse direction, that is, in the transverse direction, the distance between two adjacent contact arms 201 is equal; instead of having at least two groups of contact arms 201 like the first and second terminals 21, 22 in the first embodiment.

[0067] In summary, the power connector 100 of the present invention increases the relative area of ​​each terminal assembly 2a, 2b in the lateral direction by setting the width of the base portion 202 of the first and second terminals 21, 22 in the lateral direction to be no less than 10% of the width of the insulating body 1 in the lateral direction or no less than 15% of the width of the power transmission cavity in the lateral direction, thereby effectively increasing the conductive path of the terminal assembly within a limited width range and suppressing the heating of the power terminal, thereby enhancing the current carrying capacity of the power connector and meeting high-power usage requirements.

[0068] It should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0069] The above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person skilled in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A power connector, comprising an insulating body and at least one power terminal pair, the insulating body having a terminal slot extending in a front-to-rear direction, the power terminal pair being fixed in the terminal slot of the insulating body, each power terminal pair comprising an upper row terminal assembly and a lower row terminal assembly with contact arms arranged opposite to each other in a height direction, each of the upper row terminal assembly and the lower row terminal assembly comprising a first terminal and a second terminal, each of the first terminal and the second terminal comprising a base portion and at least one contact arm extending forward from the base portion; characterized in that: The width of the base parts of the first and second terminals in the transverse direction is not less than 10% of the width of the insulating body in the transverse direction.

2. The power connector according to claim 1, wherein: The width of the base parts of the first and second terminals in the transverse direction is not less than 30% of the width of the insulating body in the transverse direction.

3. The power connector according to claim 2, wherein: The contact arms of each of the upper row terminal assemblies and the lower row terminal assemblies are arranged into at least two groups arranged side by side in the transverse direction, and the distance between two adjacent groups of contact arms is greater than the distance between two adjacent contact arms in the same group.

4. The power connector according to claim 3, wherein: The contact arms of each of the first terminal and the second terminal are arranged into at least two groups arranged side by side in the transverse direction, and the distance between two adjacent groups of contact arms in the transverse direction is greater than the distance between two adjacent contact arms in the same group.

5. The power connector according to claim 3, wherein: At least one partition wall is arranged in each of the terminal grooves, and the partition wall separates two adjacent groups of contact arms in the transverse direction.

6. The power connector according to claim 5, wherein: The insulating body has a transverse wall extending in the transverse direction, and the transverse wall divides the terminal slot into two groups corresponding to the upper row terminal assembly and the lower row terminal assembly respectively. Each of the partition walls extends in the front-to-back direction and has a connecting portion connected to the transverse wall.

7. The power connector according to claim 6, wherein: The second terminal is provided with a groove formed by being recessed backwards, the groove being recessed backwards from the front end of the base portion, and the connecting portion is inserted backwards into the groove.

8. The power connector according to claim 6, wherein: Each of the partition walls includes a first partition located on the front side of the connecting portion and a second partition located on the rear side of the connecting portion, and the second partition is inserted backward into the spacing space of the base portions of the corresponding first and second terminals in the height direction, so that the base portion is clamped in the height direction by two adjacent ones of the second partition, the lateral wall, the top wall of the insulating body, and the bottom wall of the insulating body.

9. The power connector according to any one of claims 1 to 8, characterized in that: In the same terminal assembly, at least a portion of the contact arm of the second terminal extends into the gap between two adjacent contact arms of the first terminal.

10. A power connector, comprising an insulating body and at least one power terminal pair, the insulating body having a power transmission cavity for accommodating the power terminal pair, the power terminal pair being fixed in a terminal slot of the insulating body, the power transmission cavity being communicated with the terminal slot, each power terminal pair comprising an upper row terminal assembly and a lower row terminal assembly whose contact arms are arranged opposite to each other in a height direction, each of the upper row terminal assembly and the lower row terminal assembly comprising a first terminal and a second terminal, each of the first terminal and the second terminal comprising a base portion and at least one contact arm extending forward from the base portion; characterized in that: The width of the base parts of the first and second terminals in the transverse direction is not less than 15% of the width of the power transmission cavity in the transverse direction.

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