Bus connector and power supply terminal with cable

Abstract

The invention discloses a bus connector and a power supply terminal with a cable. The bus connector includes a housing, two terminal sets, and a plurality of cables. The shell is provided with two vertical parts, and the two vertical parts are oppositely arranged and jointly form a plugging port. The two terminal groups are inserted into the shell, each terminal group comprises at least one power supply terminal, the at least one power supply terminal comprises a contact part, a fixing part and a crimping part, and the fixing part is connected between the contact part and the crimping part. The plurality of cables are arranged in a single row, and one end of each of the plurality of cables is fixedly connected to the crimping part. The crimping part is provided with a cross section, the cross section is perpendicular to the extension direction of the plurality of cables, and the length-width ratio of the cross section is larger than or equal to 3. Therefore, according to the bus connector, the heat dissipation efficiency is improved, and the current-carrying capacity is improved.

Description

Technical Field

[0001] The invention relates to a bus connector and a power terminal with a cable, and in particular to a bus connector and a power terminal with a cable with improved current carrying capacity. Background Art

[0002] Generally speaking, the heat dissipation effect of bus connectors used to transmit large currents usually directly affects the current carrying capacity. In the bus connector of the prior art, when the power terminal is connected to multiple cables, the exposed copper wires of the multiple cables are placed in a multi-row stacked arrangement and crimped on the crimping part of the power terminal. However, when crimping in a multi-row stacked arrangement, it is usually necessary to apply considerable pressure to crimp the exposed copper wires of the multiple cables and the crimping part together to avoid the problem of loose crimping causing the cable to fall off. In addition, after crimping, the crimping part of the power terminal is roughly cylindrical or annular in shape, and there are still considerable gaps between the copper wires and between the crimping part and the copper wires, which makes it difficult to reduce the contact impedance between the power terminal and the cable, thereby reducing the current carrying capacity.

[0003] Therefore, how to overcome the above-mentioned defects through improvement of structural design has become one of the important issues to be solved in this field. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a bus connector and a power terminal with a cable with improved current carrying capacity in view of the deficiencies of the prior art.

[0005] In order to solve the above-mentioned technical problems, one of the technical solutions adopted by the present invention is to provide a bus connector, which includes a shell, two terminal groups and a plurality of cables. The shell has two upright parts, which are arranged opposite to each other and together form a plug interface. The two terminal groups are inserted into the shell, and each terminal group includes at least one power terminal, and the at least one power terminal includes a contact portion, a fixed portion and a crimping portion, and the fixed portion is connected between the contact portion and the crimping portion. The plurality of cables are arranged in a single row, and one end of the plurality of cables is fixedly connected to the crimping portion. The crimping portion has a cross section, the cross section is perpendicular to the extension direction of the plurality of cables, and the aspect ratio of the cross section is greater than or equal to 3.

[0006] In order to solve the above technical problems, one of the technical solutions adopted by the present invention is to provide a power terminal with a cable, which includes a power terminal and at least three cables. The power terminal includes a contact portion, a fixing portion and a crimping portion. The fixing portion is connected between the contact portion and the crimping portion. At least three cables are arranged in a single row, and one end of each cable is fixedly connected to the crimping portion. The crimping portion has a cross section, the cross section is perpendicular to the extension direction of the at least three cables, and the length-to-width ratio of the cross section is greater than or equal to 3.

[0007] One of the beneficial effects of the present invention is that the bus connector and the power terminal with cables provided by the present invention can connect multiple cables to the power terminal in a single row through the technical scheme of "multiple cables are arranged in a single row, one end of the multiple cables is fixedly connected to the crimping portion" and "the crimping portion has a cross-section, the cross-section is perpendicular to the extension direction of the multiple cables, and the aspect ratio of the cross-section is greater than or equal to 3", thereby increasing the contact area between the crimping portion of the power terminal and the cable to reduce the contact impedance, and at the same time increasing the contact area between each cable and the air (i.e., increasing the heat dissipation area), thereby improving the heat dissipation efficiency and enhancing the current carrying capacity.

[0008] To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are only for reference and description and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 FIG. 1 is a perspective schematic diagram of a bus connector according to a first embodiment of the present invention.

[0010] Figure 2 for Figure 1 Schematic cross-sectional view of section II-II.

[0011] Figure 3 It is an exploded schematic diagram of a housing and two terminal sets of a bus connector according to the first embodiment of the present invention.

[0012] Figure 4 FIG. 1 is a schematic diagram of a power terminal and a cable of a bus connector according to a first embodiment of the present invention.

[0013] Figure 5 It is a schematic diagram of the bus connector of the present invention in which the crimping portion of the power terminal is not crimped with a cable.

[0014] Figure 6 FIG. 1 is an exploded schematic diagram of a power terminal of a bus connector according to a first embodiment of the present invention.

[0015] Figure 7 It is an exploded schematic diagram of a housing and a grounding terminal of a bus connector according to the first embodiment of the present invention.

[0016] Figure 8 FIG. 1 is a perspective schematic diagram of a bus connector according to a second embodiment of the present invention.

[0017] Fig. 9 for Figure 8 Schematic cross-sectional view of section IX-IX.

[0018] Fig.10 FIG. 1 is an exploded schematic diagram of a power terminal of a bus connector according to a second embodiment of the present invention. DETAILED DESCRIPTION

[0019] The following is an explanation of the implementation of the "bus connector and power terminal with cable" disclosed in the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed in various ways based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depicted according to actual dimensions. It is stated in advance. The following embodiments will further explain the relevant technical contents of the present invention in detail, but the disclosed contents are not intended to limit the scope of protection of the present invention.

[0020] It should be understood that, although the terms "first", "second", "third", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are mainly used to distinguish one element from another element. In addition, the term "or" used herein may include any one or more combinations of the associated listed items depending on the actual situation.

[0021] First embodiment

[0022] See also Figures 1 to 3 As shown, the first embodiment of the present invention provides a bus connector M, which includes a housing 1, two terminal groups 2 and a plurality of cables 3. The housing 1 is a hollow housing, and the two terminal groups 2 are arranged in the housing 1. Each terminal group 2 includes at least one power terminal and is connected to a plurality of cables 3. The at least one power terminal is used to transmit a large current through the cable 3. In the present invention, the plurality of cables 3 are arranged in a single row.

[0023] The housing 1 has two upright portions 11, which are arranged opposite to each other and together form a plug interface C1. Figure 2 As shown, a hook-shaped portion 111 is formed at the end of each upright portion 11. The plug interface C1 is located between the two hook-shaped portions 111. In addition, the housing 1 forms an opening C2 on the opposite side of the side where the two upright portions 11 are formed. The two terminal groups 2 can be inserted into the housing 1 through the opening C2. The housing 1 also has a partition wall 13 inside, and the partition wall 13 can be used to electrically isolate the two terminal groups so that the two terminal groups 2 are separated from each other and do not contact each other. Therefore, the bus connector M of the present invention can be plugged into a pair of distribution connectors (not shown) through the plug interface C1 to receive at least one working voltage.

[0024] Each terminal group 2 may include one or more power terminals, and the present invention is not limited to the number of power terminals. Figures 1 to 3As shown, each terminal group 2 includes a first power terminal 21 and a second power terminal 22 stacked on each other. The first power terminal 21 includes a contact portion 211, a fixing portion 212 and a crimping portion 213. The fixing portion 212 is flat and connected between the contact portion 211 and the crimping portion 213. One end of a plurality of cables 3 is fixedly connected to the crimping portion 213. Similarly, the second power terminal 22 includes a contact portion 221, a fixing portion 222 and a crimping portion 223, and the fixing portion 222 is connected between the contact portion 221 and the crimping portion 223. One end of a plurality of cables 3 is fixedly connected to the crimping portion 223. The fixing portion 212 of the first power terminal 21 and the fixing portion 222 of the second power terminal 22 are electrically connected to each other.

[0025] See also Figure 4 Furthermore, the second power terminal 22 further includes a bending portion 224 connected between the fixing portion 222 and the crimping portion 223. Through the structural design of the bending portion 224, when the first power terminal 21 and the second power terminal 22 are stacked on each other, the crimping portion 213 of the first power terminal 21 and the crimping portion 223 of the second power terminal 22 are spaced apart from each other without contacting each other, thereby increasing the air convection space and improving the heat dissipation efficiency.

[0026] See also Figure 3 and Figure 4 As shown, one end of the plurality of cables 3 is a conductive portion 31, which is fixedly connected to the crimping portions 213, 223 of the first power terminal 21 and the second power terminal 22. The plurality of cables 3 are arranged in a single row of 1×N, where N is the number of cables 3 connected to the same crimping portion 213, 223. Due to the arrangement and crimping method of the cables 3, the front and rear sides of the crimping portion 213, 223 are flat (flat plate area) in appearance, and the left and right sides are arc-shaped in appearance, extending from the other side of the fixed portion 212, 222 and protruding outward (that is, the contact portion 211, 221 and the crimping portion 213, 223 are protruding as opposite sides of the fixed portion 212, 222). For example, taking the crimping portion 223 as an example, the crimping portion 223 has a thickness T and a width W. If viewed from the perspective of the extension direction D1 of the plurality of cables 3, the crimping portion 223 has a cross section E perpendicular to the extension direction D1 of the plurality of cables 3, and the length-to-width ratio of the cross section E is greater than or equal to 3. The length of the cross section E is the width W of the crimping portion 223, and the width of the cross section E is the thickness T of the crimping portion 223. That is, the crimping portion of each power terminal crimps at least three cables, and these cables are arranged in a single row, so that Figure 4 Taking the crimping portion 223 as an example, the ratio of the lateral width W1 of the flat plate areas on the front and rear sides of the crimping portion 223 to the distance between the two flat plate areas (ie, the thickness T) is greater than or equal to 2.

[0027] Specifically, each cable 3 is a conductor covered with an insulating sheath, and one end of the conductor is not covered with the insulating sheath and is exposed to form a plurality of conductive wires 30. Figure 4 and Figure 5 As shown, Figure 4 The diagram shows the state in which the conductive wires 30 of the plurality of cables 3 are crimped to form the conductive portion 31. Figure 5 The diagram shows the state of the conductive wires 30 of the multiple cables 3 before they are crimped (before crimping). Crimping is a process of applying pressure to the wires after they are placed in the crimping part of the terminal to form a tight connection. Figure 5 The exposed conductive wires 30 of the plurality of cables 3 are pressed together to form a Figure 4 The conductive part 31 shown. In practical application, solder can be added to the conductive part 31, and the solder can fill the gaps in the conductive part 31 (i.e. the gaps between the conductive wires 30 of the cable 3 and between the conductive wires 30 and the crimping part) by heating to further reduce the contact impedance between the cable 3 and the power terminal.

[0028] See also Figure 2 and Figure 6 As shown, the contact portion 211 of the first power terminal 21 includes a plurality of first contact arms 2111 extending from one side of the fixed portion 212 toward the upright portion 11 and bending inward. The contact portion 221 of the second power terminal 22 includes a plurality of second contact arms 2211 extending from one side of the fixed portion 222 toward the upright portion 11 and bending inward. The plurality of first contact arms 2111 and the plurality of second contact arms 2211 are arranged in a row and staggered. Each first contact arm 2111 has a contact surface 2110, and each second contact arm 2211 has a contact surface 2210. The plurality of contact surfaces 2110 of the plurality of first contact arms 2111 and the plurality of contact surfaces 2210 of the plurality of second contact arms 2211 can be arranged in the same row in the plugging direction; or the plurality of contact surfaces 2110 and the plurality of contact surfaces 2210 can be arranged in two different rows in the plugging direction to achieve a staggered effect, so as to reduce the insertion force required for the power distribution connector. When the distribution connector is plugged into the bus connector M through the plug interface C1, the first contact arms 2111 and the second contact arms 2211 electrically contact the conductive terminals in the distribution connector through the contact surfaces 2110, 2210 to transmit current. In addition, the staggered configuration design of the first contact arms 2111 and the second contact arms 2211 can increase the number of electrical contact points, thereby increasing the conductive area as much as possible and reducing the contact impedance.

[0029] In addition, if Figure 4 and Figure 6As shown, each terminal group 2 further includes a supporting terminal 23, and the supporting terminal 23 is stacked with the first power terminal 21 and the second power terminal 22. The second power terminal 22 is stacked between the first power terminal 21 and the supporting terminal 23, and the supporting terminal 23 is located at the outermost side. The supporting terminal 23 includes a fixing portion 232 and a plurality of supporting arms 231 connected to the fixing portion 232. In addition, as shown in FIG. Figure 4 As shown, each support arm 231 corresponds to and overlaps one of the adjacently arranged first contact arms 2111 and one of the second contact arms 2211. The support terminal 23 can be made of, for example, a stainless steel material with good elasticity, so that the plurality of support arms 231 can provide a strong positive elastic force to the first contact arm 2111 of the first power terminal 21 and the second contact arm 2211 of the second power terminal 22, so that the first contact arm 2111 and the plurality of second contact arms 2211 can contact the conductive terminal of the power distribution connector more stably.

[0030] Each terminal group 2 also includes a clamping member 24. A clamping groove 2120 is provided on one side of the fixing portion 212 of the first power terminal 21. A clamping groove 2220 is provided on one side of the fixing portion 222 of the second power terminal 22. A clamping groove 2320 is provided on one side of the fixing portion 232 of the support terminal 23. When the support terminal 23 and the first power terminal 21 and the second power terminal 22 are stacked on each other, the clamping grooves 2120, 2220, and 2320 are also stacked on each other. Furthermore, the clamping member 24 is clamped in the clamping grooves 2120, 2220, and 2320. The present invention is not limited by the number of clamping members 24. Figure 6 As shown, in the present invention, each terminal set 2 may include two clamping members 24. Similarly, the number of clamping slots of each power terminal may correspond to two, and the two clamping slots are respectively arranged on both sides of the fixing portion.

[0031] Furthermore, the clamping member 24 includes a U-shaped beam 241. The housing 1 also includes a clamping hole V. When each terminal set 2 is inserted into the housing 1, the U-shaped beam 241 is clamped in the clamping hole V. Therefore, the first power terminal 21, the second power terminal 22 and the support terminal 23 can be clamped in the clamping hole V through the clamping member 24, and then fixed in the housing 1, so as to prevent the terminal set 2 from being separated from the housing 1.

[0032] Each terminal set 2 further includes a plurality of fixing pins 26. The fixing portion 212 of the first power terminal 21 has a plurality of through holes 212H corresponding to the plurality of fixing pins 26. The fixing portion 222 of the second power terminal 22 has a plurality of through holes 222H corresponding to the plurality of fixing pins 26. The fixing portion 232 of the support terminal 23 has a plurality of through holes 232H corresponding to the plurality of fixing pins 26. Therefore, each fixing pin 26 can be inserted into the plurality of through holes 212H, 222H, 232H to connect the first power terminal 21, the second power terminal 22 and the support terminal 23 together.

[0033] See also Figure 7 As shown, each terminal group 2 also includes two grounding terminals 25, which are respectively arranged and exposed on both sides of the housing 1. Each grounding terminal 25 includes a first segment 251 and a second segment 252 that are perpendicular to each other. The edge of the first segment 251 has a plurality of first latches 2511, and the edge of the second segment has a plurality of second latches 2521. The grounding terminal 25 can first contact the matching electrical connector when the bus connector M is plugged into the matching electrical connector, and guide the static electricity conducted by the matching electrical connector to the housing 1 to the ground.

[0034] The housing 1 further includes two wing portions 12, and the two wing portions 12 correspond to the two upright portions 11 respectively. Each wing portion 12 is perpendicular to the corresponding upright portion 11. The housing 1 has a plurality of first clamping portions 111 corresponding to the plurality of first clamping members 2511 at the top edge of each upright portion 11, and the housing 1 has a plurality of second clamping portions 121 corresponding to the plurality of second clamping members 2521 at the edge of each wing portion 12.

[0035] When the two grounding terminals 25 are respectively arranged on both sides of the shell 1, the two first segments 251 of the two grounding terminals 25 are respectively arranged on the two upright portions 11 so that the multiple first clips 2511 are respectively clipped on the multiple first clip portions 111, and the two second segments 252 of the two grounding terminals 25 are respectively arranged on the two wing portions 12 so that the second clips 2521 are respectively clipped on the second clip portions 121, so that the two grounding terminals 25 are fixed on the shell 1.

[0036] For example, the first fastener 2511 is a hook, and the first fastening portion 111 is a slot. The second fastener 2521 is a fixing plate with a perforation, and the second fastening portion 121 is a convex rib. In addition, the second segment 252 of each grounding terminal 25 also has at least one fastening hole 250, and each wing portion 12 of the housing 1 also has at least one positioning convex pad P corresponding to the at least one fastening hole 250. When each grounding terminal 25 is respectively disposed on the housing 1, at least one fastening hole 250 is fastened to at least one positioning convex pad P. Further, as Figure 2 As shown, each wing 12 is provided with a nut R ( Figure 2 Only the nut R in one of the wings 12 is shown, and at least one positioning protrusion P has a screw hole P1 corresponding to the nut R. Therefore, each grounding terminal 25 can be fixed to the housing 1 by passing a screw (not shown) through the screw hole P1 and combining with the nut R.

[0037] Second embodiment

[0038] See also Figures 8 to 10As shown, the second embodiment of the present invention provides a bus connector M. The structure of the bus connector M of the second embodiment is similar to that of the first embodiment, and the similarities are not repeated. The main difference is that in the second embodiment, the power terminal structure of the bus connector M is different from that of the first embodiment. The multiple first contact arms 2111 of the first power terminal 21 and the multiple second contact arms 2211 of the second power terminal 22 are arranged side by side and separated by a fixed gap. Fig. 9 As shown, the contact area formed by the multiple contact surfaces 2110 of the multiple first contact arms 2111 will be at a distance N1 from the plug interface C1, and the contact area formed by the multiple contact surfaces 2210 of the multiple second contact arms 2211 will be at another distance N2 from the plug interface C1, and the distance N1 is greater than the distance N2. In other words, the contact area formed by the multiple contact surfaces 2210 of the multiple second contact arms 2211 is closer to the plug interface C1 than the contact area formed by the multiple contact surfaces 2110 of the multiple first contact arms 2111. When the bus connector M is docked with the external distribution connector, the distribution connector will first contact the multiple contact surfaces 2210 of the multiple second contact arms 2211, and then contact the multiple contact surfaces 2110 of the multiple first contact arms 2111. By designing that the first contact arms 2111 and the second contact arms 2211 are arranged side by side and separated by a fixed gap, the insertion force required when the distribution connector and the bus connector M are docked can be reduced.

[0039] In addition, in the second embodiment, the fixing portion 212 of the first power terminal 21 includes a separable first fixing section 2121 and a second fixing section 2122. The first fixing section 2121 is connected to the contact portion 211, and the second fixing section 2122 is connected to the crimping portion 213. The first fixing section 2121 can be connected to the second fixing section 2122 via a fixing pin 26. Similarly, the fixing portion 222 of the second power terminal 22 includes a separable first fixing section 2221 and a second fixing section 2222. The first fixing section 2221 is connected to the contact portion 221, and the second fixing section 2122 is connected to the crimping portion 213. In other words, in the second embodiment, each power terminal can be divided into a plurality of parts. In addition, in the second embodiment, the power terminal has no supporting terminal.

[0040] Furthermore, the first fixing section 2121 and the second fixing section 2122 of the first power terminal 21 have a plurality of through holes 212H, and the first fixing section 2221 and the second fixing section 2222 of the second power terminal 22 have a plurality of through holes 222H. The first power terminal 21 and the second power terminal 22 can be further combined by having a plurality of fixing pins 26 pass through the plurality of through holes 212H, 222H.

[0041] like Fig.10As shown, the fixing portion 222 of the second power terminal 22 further includes two limiting portions 2223, which are respectively connected to the two side edges of the second fixing section 2222, and each limiting portion 2223 is bent. Fig. 9 As shown, through the structural design of the limiting portion 2223, when the second power terminal 22 is inserted into the housing 1, the two limiting portions 2223 abut against the inner wall of the housing 1 to form a gap G2 between the second power terminal 22 and the inner wall of the housing 1. Fig. 9 As shown, there is a gap G1 between the contact portion 211 of the first power terminal 21 and the contact portion 221 of the second power terminal 22, and there is a gap G3 between the second fixing section 2122 of the first power terminal 21 and the bending portion 224 of the second power terminal 22. The plurality of gaps G1, G2, and G3 form a heat conduction channel inside the housing, which can be used as a flow path for heat transfer media such as air and liquid to improve heat dissipation efficiency.

[0042] Advantageous Effects of Embodiments

[0043] One of the beneficial effects of the present invention is that the bus connector and the power terminal with cables provided by the present invention can connect multiple cables to the power terminal in a single row through the technical scheme of "multiple cables are arranged in a single row, one end of the multiple cables is fixedly connected to the crimping portion" and "the crimping portion has a cross-section, the cross-section is perpendicular to the extension direction of the multiple cables, and the aspect ratio of the cross-section is greater than or equal to 3", thereby increasing the contact area between the crimping portion of the power terminal and the cable to reduce the contact impedance, and at the same time increasing the contact area between each cable and the air (i.e., increasing the heat dissipation area), thereby improving the heat dissipation efficiency and enhancing the current carrying capacity.

[0044] Furthermore, the present invention can also utilize multiple power terminals (first power terminals and second power terminals) to connect multiple cables. Each power terminal can connect multiple cables arranged in a single row. By spacing the crimping parts of the multiple power terminals apart from each other without contacting each other, air convection is further increased to improve heat dissipation efficiency and current carrying capacity. In addition, the present invention also increases the number of electrical contact points and increases the conductive area by staggered configuration or vertically arranged design of multiple first contact arms of the first power terminal and multiple second contact arms of the second power terminal, thereby reducing contact impedance.

[0045] The contents disclosed above are only preferred feasible embodiments of the present invention, and are not intended to limit the protection scope of the claims of the present invention. Therefore, all equivalent technical changes made using the contents of the present invention description and drawings are included in the protection scope of the claims of the present invention.

Claims

1. A bus connector, It is characterized in that The bus connector comprises: A housing having a plug interface; Two terminal groups are inserted into the housing, each of the terminal groups includes at least one power terminal, and the at least one power terminal includes a contact portion, a fixing portion and a crimping portion, and the fixing portion is connected between the contact portion and the crimping portion; and A plurality of cables are arranged in a single row, and one end of the plurality of cables is fixedly connected to the crimping portion; The crimping portion has a cross section, the cross section is perpendicular to the extension direction of the plurality of cables, and the length-to-width ratio of the cross section is greater than or equal to 3.

2. The bus connector according to claim 1, It is characterized in that The number of the cables connected to each of the crimping portions is at least three.

3. The bus connector according to claim 1, It is characterized in that The at least one power terminal includes a first power terminal and a second power terminal stacked on each other, and the second power terminal has a bending portion, which is connected between the fixing portion and the crimping portion so that the crimping portion of the first power terminal and the crimping portion of the second power terminal do not contact each other.

4. The bus connector according to claim 3, It is characterized in that The contact portion of the first power terminal includes a plurality of first contact arms, and the contact portion of the second power terminal includes a plurality of second contact arms. The plurality of first contact arms and the plurality of second contact arms are arranged in a row and staggered, and the contact areas of the plurality of first contact arms and the contact areas of the plurality of second contact arms are arranged in a row.

5. The bus connector according to claim 4, It is characterized in that Each of the terminal groups also includes a supporting terminal, which is stacked with the first power terminal and the second power terminal, and the second power terminal is stacked between the first power terminal and the supporting terminal. The supporting terminal includes a plurality of supporting arms, and each of the supporting arms overlaps with an adjacent one of the first contact arms and one of the second contact arms.

6. The bus connector according to claim 3, It is characterized in that The contact portion of the first power terminal includes a plurality of first contact arms, and the contact portion of the second power terminal includes a plurality of second contact arms. The plurality of first contact arms and the plurality of second contact arms are arranged side by side front and back, and the contact areas of the plurality of first contact arms are closer to the plug interface than the contact areas of the plurality of second contact arms.

7. The bus connector according to claim 3, It is characterized in that The fixing portion of the second power terminal further includes two limiting portions respectively connected to two sides of the fixing portion, and each of the limiting portions is in a bent shape.

8. The bus connector according to claim 1, It is characterized in that Each of the terminal groups further includes a locking member, the fixing portion of the at least one power terminal has a locking slot, and the locking member is locked in the locking slot.

9. The bus connector according to claim 8, It is characterized in that The clamping member includes a U-shaped beam, and the shell further includes a clamping hole, wherein when each of the terminal sets is inserted into the shell, the U-shaped beam is clamped in the clamping hole.

10. The bus connector according to claim 1, It is characterized in that Each of the terminal groups also includes two grounding terminals, which are respectively arranged and exposed on both sides of the shell. Each of the grounding terminals includes a first segment and a second segment that are perpendicular to each other. The edge of the first segment has a hook, and the edge of the second segment has a perforated fixing plate.

11. The bus connector according to claim 10, It is characterized in that The shell also includes two upright portions and two wing portions. The two upright portions are arranged opposite to each other to form the plug-in interface. The two wing portions correspond to the two upright portions respectively. Each wing portion is perpendicular to the corresponding upright portion. The shell has a slot corresponding to the hook at the edge of each upright portion, and the shell has a rib corresponding to the perforated fixing plate at the edge of each wing portion.

12. The bus connector according to claim 1, It is characterized in that The shell body has a partition wall inside, and the partition wall is used to isolate the two terminal groups so that the two terminal groups are separated from each other and do not contact each other.

13. A power terminal with a cable, It is characterized in that The power terminal with cable includes: A power terminal, comprising a contact portion, a fixing portion and a crimping portion, wherein the fixing portion is connected between the contact portion and the crimping portion; and at least three cables arranged in a single row, one end of which is fixedly connected to the crimping portion; The crimping portion has a cross section, the cross section is perpendicular to an extension direction of the at least three cables, and a length-to-width ratio of the cross section is greater than or equal to 3.

14. The power terminal with cable according to claim 13, It is characterized in that The crimping portion has a flat plate area on each side, and the ratio of a transverse width of each flat plate area to the distance between the two flat plate areas is greater than or equal to 2.

15. The power terminal with cable according to claim 13, It is characterized in that The contact portion includes a plurality of contact arms.

16. The power terminal with cable according to claim 13, It is characterized in that Solder is filled between the crimping portion and one ends of the at least three cables.

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