Power connector

Abstract

The invention provides a power connector, which comprises an insulating body and a plurality of power terminals arranged in the insulating body, and is characterized in that the insulating body is provided with a butt joint part with a butt joint cavity and a terminal groove communicated with the butt joint cavity; each power supply terminal is provided with a base body part fixed in the terminal groove and a contact arm which extends forwards from the base body part so as to protrude into the butt joint cavity; the range of the ratio of the material thickness of the power supply terminal to the height of the butt joint part is 4.44%-9.85%. According to the power connector, the current bearing capacity of the power terminals can be improved, and meanwhile, the mechanical strength and the structural stability are ensured, so that the reliability and the market applicability of products are improved.

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 terminals fixed in the insulating body, each of which comprises a base and at least one elastic contact arm extending forward from the base. The material thickness (t) of the power terminal in the power connector and the height (H) of the butt joint of the insulating body have an important influence on the electrical and mechanical properties of high current applications. Among them, the ratio of the material thickness of the power terminal to the height of the butt joint is a key factor in determining the balance between the current carrying capacity and the mechanical strength of the connector. However, the prior art has not yet achieved optimization in the design of this ratio. When the value of t / H is too large, that is, the material thickness of the power terminal is relatively thick, the current carrying capacity of the power terminal is high, but the mechanical strength is insufficient, affecting its durability and structural stability; when the value of t / H is too small, that is, the material thickness of the power terminal is relatively thin, the mechanical strength of the power terminal is high, but the cross-sectional area of ​​the power terminal is small, resulting in a decrease in its current carrying capacity and not meeting the miniaturization requirements of high power density applications. Since different application scenarios have different requirements for the current carrying capacity and mechanical strength of the power terminal, it is difficult for the existing design to take into account both reliability and industrial needs.

[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 improving overall performance and market applicability.

[0005] To achieve the above-mentioned purpose of the invention, the present invention provides a power connector, which includes an insulating body and a plurality of power terminals arranged in the insulating body, the insulating body having a docking portion formed with a docking cavity and a terminal slot connected to the docking cavity, each of the power terminals having a base portion fixed in the terminal slot and a contact arm extending forward from the base portion to protrude into the docking cavity; the ratio of the material thickness of the power terminal to the height of the docking portion ranges from 4.44% to 9.85%.

[0006] As a further improvement of the present invention, the ratio of the material thickness of the power terminal to the height of the docking portion is in the range of 4.71% to 9.14%.

[0007] As a further improvement of the present invention, the ratio of the material thickness of the power terminal to the height of the docking portion is in the range of 5.00% to 8.53%.

[0008] As a further improvement of the present invention, the ratio of the material thickness of the power terminal to the height of the docking portion is in the range of 5.33% to 8.00%.

[0009] As a further improvement of the present invention, the contact arms of the power terminals are arranged in rows along the lateral direction of the insulating body, and the power terminals corresponding to the same row of contact arms form at least one terminal assembly, each terminal assembly includes at least two power terminals, and the base parts of the two power terminals are arranged in the height direction of the insulating body.

[0010] As a further improvement of the present invention, the terminal assembly includes an upper row of terminal assemblies and a lower row of terminal assemblies whose contact arms are relatively arranged in the height direction, and the contact arms of each terminal assembly 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.

[0011] As a further improvement of the present invention, the contact arms of each power terminal are arranged into at least two groups arranged side by side in the lateral direction, and the distance between two adjacent groups of contact arms in the lateral direction is greater than the distance between two adjacent contact arms in the same group.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] Beneficial effects of the present invention: The power connector of the present invention optimizes the ratio of the material thickness of the power terminal to the height H of the docking portion, so that the ratio of the material thickness of the power terminal to the height H of the docking portion ranges from 4.44% to 9.85%, thereby improving the current carrying capacity while ensuring mechanical strength and structural stability to meet the miniaturization requirements of high power density applications. 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 1Another 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] Figures 10 to 12 yes Figure 1 A cross-sectional view of the power connector is shown. DETAILED DESCRIPTION

[0026] 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.

[0027] Please refer to Figures 1 to 12 FIG. 1 is a preferred embodiment of a power connector 100 of the present invention. In some embodiments of the present invention, the power connector 100 includes an insulating body 1 and a plurality of power terminals 2 disposed in the insulating body 1 .

[0028] 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.

[0029] Please refer to Figures 1 to 3As shown, the insulating body 1 has a docking portion 10 formed with a docking cavity 101 and a terminal slot 103 communicating with the docking cavity 101, and the docking portion 10 is located at the front side of the insulating body 1. The terminal slot 103 extends in the front-to-back direction, and the power terminal 2 is fixed in the corresponding terminal slot 103 of the insulating body 1.

[0030] like Figure 8 and Fig. 9 As shown, in the present invention, each of the terminal slots 103 is provided with at least one partition wall 102 to divide each terminal slot 103 into at least two terminal channels 1031. In the embodiment shown in the present application, two of the partition walls 102 are provided in each terminal slot 103 to divide one terminal slot 103 into three terminal channels 1031. In other embodiments, each terminal slot 103 may also be divided into two, four or more terminal channels 1031 by the partition walls 102.

[0031] The insulating body 1 has a transverse wall 104 extending in a transverse direction. The transverse wall 104 divides the terminal slot 103 into two upper and lower groups. Each of the partition walls 102 extends in a front-to-rear direction and has a connecting portion 1021 connected to the transverse wall 104 .

[0032] 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 105 or the bottom wall 106 of the insulating body 1 .

[0033] 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.

[0034] 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.

[0035] In the height direction, the distance between the extension surface 1025 and the transverse wall 104 is smaller than the distance between the corresponding second spacer 1023 and the transverse wall 104, 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.

[0036] 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 105, the rear end face of the transverse wall 104 is arranged flush with the rear end face of the top wall 105, and the second spacer 1023 located on the lower side extends backwards to be flush with the bottom wall 106.

[0037] The transverse wall 104 has a notch 1041 at its lower side. The notch 1041 is formed by being recessed forward from the rear end surface of the transverse wall 104 . In the front-to-back direction, the notch 1041 is located at the rear side of the bottom wall 106 .

[0038] Please refer to Figures 1 to 7 and Figures 10 to 12 As shown, each of the power terminals 2 has a base portion 202 fixed in the terminal slot 103 and a contact arm 201 extending forward from the base portion 202 to protrude into the docking cavity 101, and the front section of the contact arm 201 is bent to have elasticity. In this example, the base portion 202 has an interference portion 2021 fixed to the insulating body 1, and the interference portion 2021 is arranged on both sides of the base portion 202 in the lateral direction.

[0039] like Fig.12 As shown, the ratio of the material thickness t of the power terminal 2 to the height H of the mating portion 10 is in the range of 4.44% to 9.85%. In the present invention, the thickness of the base portion 202 of the power terminal 2 in the height direction is the material thickness t of the power terminal 2. The present invention controls the ratio t / H of the material thickness t of the power terminal to the height H of the mating portion 10 in the range of 4.44% to 9.85%, thereby ensuring a balance between the current carrying capacity and the mechanical strength of the power terminal 2, making the power connector 100 suitable for general high-power applications, improving overall reliability and durability, and ensuring optimal performance.

[0040] Furthermore, the ratio of the material thickness of the power terminal 2 to the height of the docking portion 10 is in the range of 4.71% to 9.14%. Thus, by controlling the range of t / H to 4.71% to 9.14%, the structural rigidity of the power terminal 2 can be further optimized, the mechanical strength can be improved, and better current transmission performance can be maintained.

[0041] Furthermore, the ratio of the material thickness t of the power terminal 2 to the height H of the docking portion 10 is in the range of 5.00% to 8.53%. Thus, by controlling the range of t / H to 5.00% to 8.53%, the retention force and insertion force of the power terminal 2 can be optimized while taking into account high power transmission capability, making it suitable for industrial and server power applications with high reliability requirements.

[0042] More preferably, the ratio of the material thickness t of the power terminal 2 to the height H of the docking portion 10 is in the range of 5.33% to 8.00%. Thus, by controlling the range of t / H to 5.33% to 8.00%, it is possible to ensure the optimal mechanical and electrical performance of the power terminal 2 in high power density applications, further reduce contact resistance and heat generation, and comply with the industry miniaturization trend, making it optimally applicable in high-density power modules or high-performance computing (HPC) equipment.

[0043] In addition, if Figure 4 and Fig.10 As shown, the width W1 of the base portion 202 of each power terminal 2 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 2 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.

[0044] 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.

[0045] Furthermore, in a preferred embodiment of the present invention, the width W1 of the base portion 202 of each of the power terminals 2 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 2 in the lateral direction, the conductive path is increased, thereby effectively suppressing the heating of the power terminal.

[0046] In this embodiment, the contact arms 201 of the power terminals 2 are arranged in a row along the lateral direction of the insulating body 1, and the power terminals 2 corresponding to the same row of contact arms 201 form at least one terminal assembly, each terminal assembly includes at least two power terminals 2, and the base portions 202 of the two power terminals 2 are arranged in the height direction of the insulating body 1.

[0047] Specifically, the terminal assembly includes an upper row terminal assembly 2a and a lower row terminal assembly 2b which are arranged opposite to each other in the height direction of the contact arm 201, and the upper row terminal assembly 2a and the lower row terminal assembly 2b which are arranged opposite to each other in the height direction form a power terminal pair. The transverse wall 104 divides the terminal groove 103 into two groups corresponding to the upper row terminal assembly 2a and the lower row terminal assembly 2b respectively.

[0048] Ginseng Figures 3 to 6 As shown, the contact arms 201 of each terminal assembly are arranged in at least two groups arranged side by side in the transverse direction, such as 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] 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.

[0050] 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 2, and each power terminal 2 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 2 in the lateral direction.

[0051] In the present invention, in each terminal assembly, the base portion 202 of the first terminal 21 is disposed close to the transverse wall 104 in the height direction, and the base portion 202 of the second terminal 22 is disposed away from the transverse wall 104 in the height direction.

[0052] In this embodiment, the power terminal 2 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, the power terminal 2 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.

[0053] In this embodiment, the partition wall 102 separates two adjacent groups of contact arms 201 in the same terminal assembly in the transverse direction. Specifically, the first partition 1022 separates two adjacent groups of contact arms 201 in the same terminal assembly in the transverse direction. The notch 1041 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 104.

[0054] Please refer to Figure 5 and Figure 7 As shown, the contact arms 201 of each power terminal 2 are arranged into 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.

[0055] In this embodiment, each power terminal 2 is configured 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 increasing the conductor area of ​​each power terminal 2 in the lateral direction, thereby effectively increasing the conductive path of the terminal assembly and suppressing the heating of the power terminal.

[0056] 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 .

[0057] 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.

[0058] 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 104, the top wall 105 of the insulating body 1, and the bottom wall 106 of the insulating body 1, thereby further limiting the power terminal in the height direction.

[0059] The base portion 202 of the first terminal 21 in the upper row terminal assembly 2a is clamped between the top wall 105 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 104 in the height direction.

[0060] 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 106 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 104 in the height direction.

[0061] In addition, in the present invention, the docking cavity 101 is a space for accommodating the contact arm 201 of the power terminal 2. 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 docking cavity 101 in the transverse direction.

[0062] In this way, the power connector 100 of the present invention sets the width W1 of the base portion 202 of the power terminal 2 in the lateral direction to be no less than 15% of the width W3 of the docking cavity 101 in the lateral direction, thereby arranging the single-piece power terminal as wide as possible within the limited width range of the docking cavity 101, thereby achieving an increase in the conductive path and suppressing the heating of the power terminal.

[0063] 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 docking cavity 101 in the lateral direction, thereby arranging the monolithic power terminal wider within the limited width range of the docking cavity 101, thereby more effectively improving the current carrying capacity of the power terminal.

[0064] 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 docking cavity 101 in the lateral direction, so that the monolithic power terminal is arranged as wide as possible within the limited width range of the docking cavity 101, thereby more effectively improving the current carrying capacity of the power terminal.

[0065] 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 .

[0066] Specifically, if Figure 3 and Figure 4As 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.

[0067] In some embodiments of the present invention, the insulating body 1 further has a plurality of heat dissipation channels 107 opened on the top wall 105 thereof. The heat dissipation channels 107 penetrate the top wall 105 in the height direction to dissipate the heat generated by power supply terminals 2 as quickly as possible.

[0068] In the present invention, the power connector 100 further comprises a plurality of signal terminals 3 located on one side of the power terminal 2 in the lateral direction, and each of the signal terminals 3 comprises a docking arm 31 and a welding portion 32 .

[0069] In addition, in a modified embodiment of the power connector 100 of the present invention, similar to the aforementioned embodiment, the power connector 100 includes an insulating body 1 and at least one power terminal pair, the insulating body 1 has a terminal groove 103 extending in the front-to-back direction, the power terminal pair is fixed in the terminal groove 103 of the insulating body 1, each power terminal pair includes an upper row terminal assembly 2a and a lower row terminal assembly 2b with contact arms 201 arranged relatively in the height direction, each of the upper row terminal assembly 2a and the lower row 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.

[0070] 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.

[0071] To summarize, the power connector 100 of the present invention optimizes the ratio (t / H) of the material thickness t of the power terminal 2 to the height H of the docking portion 10 so that the ratio of the material thickness t of the power terminal 2 to the height H of the docking portion 10 is in the range of 4.44% to 9.85%, thereby improving the current carrying capacity while ensuring mechanical strength and structural stability to meet the miniaturization requirements of high power density applications.

[0072] It should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method 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.

[0073] 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 a plurality of power terminals disposed in the insulating body, wherein the insulating body has a docking portion formed with a docking cavity and a terminal slot communicating with the docking cavity, and each of the power terminals has a base portion fixed in the terminal slot and a contact arm extending forward from the base portion to protrude into the docking cavity; characterized in that: The ratio of the material thickness of the power terminal to the height of the docking portion is in a range of 4.44% to 9.85%.

2. The power connector according to claim 1, wherein: The ratio of the material thickness of the power terminal to the height of the docking portion is in the range of 4.71% to 9.14%.

3. The power connector according to claim 1, wherein: The ratio of the material thickness of the power terminal to the height of the butt joint portion is in a range of 5.00% to 8.53%.

4. The power connector according to claim 1, wherein: The ratio of the material thickness of the power terminal to the height of the butt joint portion is in the range of 5.33% to 8.00%.

5. The power connector according to any one of claims 1 to 4, characterized in that: The contact arms of the power terminals are arranged in rows along the lateral direction of the insulating body, and the power terminals corresponding to the same row of contact arms form at least one terminal assembly, each terminal assembly includes at least two power terminals, and the base parts of the two power terminals are arranged in the height direction of the insulating body.

6. The power connector according to claim 5, wherein: The terminal assembly includes an upper row of terminal assemblies and a lower row of terminal assemblies whose contact arms are arranged relatively to each other in the height direction. The contact arms of each terminal assembly 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.

7. The power connector according to claim 6, wherein: The contact arms of each power 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.

8. The power connector according to claim 6, 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.

9. 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.

10. The power connector according to claim 5, wherein: 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.

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