Heavy-current conversion electric motorcycle connector

Abstract

The utility model discloses a heavy-current battery-changing electric motorcycle connector, which comprises a plug and a socket, the plug comprises an insulating seat and a plurality of heavy-current male terminals, the front end of the insulating seat is provided with a butt joint part, the front end of the butt joint part is provided with a plurality of slots, and one heavy-current male terminal is correspondingly exposed in one slot; the socket comprises a plastic seat and a plurality of large-current female terminals, the front end of the plastic seat is provided with a butt joint groove and a plurality of plug-in convex parts, one large-current female terminal is correspondingly exposed at the front end of one plug-in convex part, and the large-current female terminal is provided with a guide connection groove; a mounting baffle is formed on the periphery of the front end of the plastic seat; a locking groove is formed in the rear side of the upper end of the mounting baffle; the upper end of the insulating base is provided with a swingable lock catch, the middle of the lock catch is pivoted to the upper end of the insulating base through cooperation of a pin shaft and a torsional spring, the front end of the lock catch is provided with a lock hook matched with the lock groove, the lock hook at the front end of the lock catch is pressed downwards under the elastic force action of the torsional spring and hooks the lock groove to form stable connection, and a pressing part at the rear end of the lock catch tilts upwards. And direct pressing unlocking is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of connector products, in particular to a large current battery replacement electric motorcycle connector. BACKGROUND

[0002] The main supporting fields of the connector include new energy, transportation, communication, network, IT, medical treatment, household appliances, military electronic products and the like, and the rapid development of the product technical level of the supporting field and the rapid growth of the market strongly pull the development of the connector technology. So far, the connector has developed into a series of products with complete product types, rich product specifications, various structural types, fine professional direction subdivision, obvious industry characteristics and standardized standard system.

[0003] With the continuous widening of the application field of the electric connector, the electric connector is also used in some high-power occasions requiring transmission of large current to realize the connection and disconnection of the electric circuit, thereby promoting the generation of the large current connector. The large current connector is widely used in electric vehicles, electric bicycles, electric motorcycles, electric forklifts, UPSs, general power supplies, medical equipment, solar energy and new energy and the like.

[0004] The present inventor has proposed a Chinese utility model patent with the application number 202121187079.5, which discloses a waterproof and dustproof high-power power supply connector, which comprises a socket and a plug that can be mutually plugged and adapted. The first terminal in the socket and the second terminal in the plug are in butt joint conduction. The plug is formed with first and second bosses at two opposite corners, and the first and second bosses are respectively provided with first and second screw holes. The socket is provided with first and second through holes at two opposite corners, and the first and second through holes correspond to the first and second screw holes, respectively. The first screw is screwed and fixed in the first screw hole through the first through hole, and the second screw is screwed and fixed in the second screw hole through the second through hole, so that the socket and the plug are fixedly connected. The butt joint structure of the socket and the plug is extremely firm, and even after long-time use, the plug and the socket will not be separated during the pulling process, meeting the requirements of large current and high power transmission, and being extremely safe and reliable to use.

[0005] However, the plug and the socket are locked by the screw, and the disassembly and assembly need to unscrew or tighten the screw, which is not convenient to operate, and needs a screwdriver to operate, which needs to spend a lot of time, affects the disassembly and assembly efficiency, and is not convenient.

[0006] Therefore, the present inventor proposes the following technical scheme. UTILITY MODEL CONTENTS

[0007] The utility model aims at overcoming the defects of the prior art, and provides a large current battery replacement electric motorcycle connector.

[0008] In order to solve the above technical problems, the utility model adopts the following technical scheme: the connector is connected with the electric motorcycle through the plug and the socket, the plug and the socket are fixed together and form the wire guide, the plug includes the insulating base and a plurality of large current male terminals arranged in the insulating base, the front end of the insulating base is provided with the butt joint part, the front end of the butt joint part is provided with a plurality of insertion grooves which are spaced apart from each other, and one large current male terminal is exposed in one insertion groove; the socket includes the plastic base and a plurality of large current female terminals arranged in the plastic base, the front end of the plastic base is provided with the butt joint groove and a plurality of insertion convex parts which are located in the butt joint groove, are spaced apart from each other and are matched with the insertion grooves, one large current female terminal is exposed at the front end of one insertion convex part, and the large current female terminal has the guide groove for inserting the large current male terminal; the front end of the plastic base is further formed with the outwardly protruding mounting baffle, the locking groove is arranged at the upper end of the rear side of the mounting baffle; the upper end of the insulating base is provided with the lock catch which can swing, the middle part of the lock catch is pivotally connected to the upper end of the insulating base through the pin shaft and the torsional spring, the front end of the lock catch is provided with the locking hook which is matched with the locking groove, the locking hook at the front end of the lock catch is pressed downward under the elastic force of the torsional spring and hooks the locking groove, and the pressing part at the rear end of the lock catch is upwardly raised.

[0009] Further, in the above technical scheme, the upper end of the insulating base is integrally formed with the pivot part, the pivot part is provided with the first shaft hole which is transversely penetrated, the pivot part is internally provided with the limiting groove, the middle part of the lock catch is downwardly formed with the protruding part, the protruding part is provided with the second shaft hole which is transversely penetrated, the protruding part is pressed into the pivot part from top to bottom, the pin shaft is arranged in the first shaft hole and the second shaft hole, and the end of the pin shaft is riveted on the outer side of the pivot part, so that the protruding part and the pivot part are pivotally connected together, the torsional spring is sleeved on the pin shaft, and one end of the torsional spring is abutted in the limiting groove, and the other end of the torsional spring is abutted on the lower end surface of the lock catch.

[0010] Further, in the above technical scheme, the upper end of the pressing part is further formed with a plurality of upwardly protruding anti-skid convex ribs.

[0011] Further, in the above technical scheme, the periphery of the butt joint part is provided with the ring groove, the ring groove is internally provided with the sealing waterproof ring, after the butt joint part is inserted into the butt joint groove, a plurality of sealing convex ribs which are formed on the outer surface of the sealing waterproof ring are in extrusion contact with the inner wall of the butt joint groove.

[0012] Further, in the above technical scheme, the rear end of the large current male terminal protrudes out of the rear end of the insulating base and is welded with the wire; the rear end of the insulating base is further injection molded with the plastic outer mold, the plastic outer mold wraps the rear end of the insulating base and the wire, and the part of the plastic outer mold corresponding to the wire is formed with the SR head, and a plurality of avoiding grooves which are convenient for bending are arranged on the SR head.

[0013] Further, in the above technical solution, the rear end of the plastic outer mold is provided with a clamping groove for clamping with force by fingers, which extends to the upper end face and the two side faces of the plastic outer mold, and the cross section of the clamping groove is concave arc-shaped.

[0014] Further, in the above technical solution, the number of the large-current male terminals is two, which are a positive large-current male terminal and a negative large-current male terminal, and the two sides of the front end face of the adapter part are respectively provided with a first positive mark and a first negative mark, which are respectively located outside the positive large-current male terminal and the negative large-current male terminal.

[0015] Further, in the above technical solution, the front end of the plug-in convex part is provided with a first jack, and the rear end of the plastic seat is provided with a first installation groove which penetrates the first jack, the diameter of the first installation groove is larger than that of the first jack, so that a step is formed at the contact part of the first installation groove and the first jack; the large-current female terminal is embeddedly installed in the first installation groove, and the front end of the large-current female terminal abuts against the step, and the lead-through groove of the large-current female terminal is connected with the first jack.

[0016] Further, in the above technical solution, the rear end of the large-current female terminal is provided with a first wiring groove which is isolated from the lead-through groove, and the rear end of the large-current female terminal is provided with a stepped groove which penetrates the first wiring groove; the male signal terminal is further provided in the insulating seat; and the female signal terminal for plugging with the male signal terminal is further provided in the plastic seat.

[0017] Further, in the above technical solution, the number of the large-current female terminals and the plug-in convex parts is two, the two large-current female terminals are a positive large-current female terminal and a negative large-current female terminal, and the front end face of the two plug-in convex parts is respectively provided with a second negative mark and a second positive mark, which are respectively located outside the positive large-current female terminal and the negative large-current female terminal.

[0018] After adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: When the plug and socket of this utility model are inserted, the pressing part at the rear end of the latch is pressed down first, so that the locking hook at the front end of the latch tilts upward. As the plug is inserted into the socket, the mating part of the plug is inserted into the mating groove of the socket. At the same time, the plugging protrusion is inserted into the slot, and the high-current male terminal is inserted into the conductive groove of the high-current female terminal, thus forming a stable assembly. At this time, the pressing part at the rear end of the latch is released, and the locking hook at the front end of the latch is pressed down under the elastic force of the torsion spring and hooks into the locking groove of the socket. The torsion spring continuously increases the elastic force, so that the locking hook and the locking groove are firmly locked, thus effectively preventing the plug and socket from accidentally disengaging. It is very simple and convenient to operate, and no tools are required, and the efficiency is also very high. When it is necessary to pull the plug out of the socket, the pressing part at the rear end of the latch is pressed down directly, so that the locking hook at the front end of the latch tilts upward to disengage from the locking groove, thus achieving the purpose of unlocking. It is very simple and convenient to operate, and no tools are required, and the efficiency is also very high. Attached image description:

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a perspective view of the present invention from another angle;

[0021] Figure 3 This is an exploded view of the plug in this utility model;

[0022] Figure 4 This is a perspective view of the plug in this utility model;

[0023] Figure 5 This is a perspective view of the socket in this utility model;

[0024] Figure 6 This is an exploded perspective view of the socket in this utility model;

[0025] Figure 7 This is a cross-sectional view of the socket in this utility model. Detailed implementation method:

[0026] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0027] See Figures 1-7 The diagram shows a high-current battery swapping connector for electric motorcycles, comprising a plug 100 and a socket 500. The plug 100 and socket 500 are plugged into and fixed together, forming a wire connection for transmitting high current and control signals. This invention is used in electric motorcycles, but can also be used in electric bicycles.

[0028] The plug 100 comprises an insulating base 1 and a plurality of large-current male terminals 2 arranged in the insulating base 1, and the insulating base 1 is provided with a mating portion 11 at the front end, and the mating portion 11 is provided with a plurality of insertion grooves 111 at the front end, and one large-current male terminal 2 is exposed in one insertion groove 111; the socket 500 comprises a plastic base 5 and a plurality of large-current female terminals 6 arranged in the plastic base 5, and the plastic base 5 is provided with a mating groove 51 at the front end and a plurality of insertion protrusions 52 located in the mating groove 51 and spaced apart from each other and matched with the insertion grooves 111, and one large-current female terminal 6 is exposed at the front end of one insertion protrusion 52, and the large-current female terminal 6 has a guide groove 61 for inserting the large-current male terminal 2; the plastic base 5 is further formed with an outwardly protruding mounting baffle 53 at the front end, and the mounting baffle 53 is provided with a locking groove 531 at the upper end; the insulating base 1 is provided with a lock catch 12 at the upper end, and the lock catch 12 is pivotally connected to the upper end of the insulating base 1 through a pin shaft 54 and a torsional spring 55, and the lock catch 12 is provided with a locking hook 121 matched with the locking groove 531 at the front end, and the locking hook 121 at the front end of the lock catch 12 is pressed downward and hooked in the locking groove 531 under the elastic force of the torsional spring 55, and the pressing portion 122 at the rear end of the lock catch 12 is upwardly tilted. That is, when the plug 100 and the socket 500 are matched, the pressing portion 122 at the rear end of the lock catch 12 is pressed, the locking hook 121 at the front end of the lock catch 12 is upwardly tilted, the mating portion 11 of the plug 100 is inserted into the mating groove 51 of the socket 500, the insertion protrusion 52 is inserted into the insertion groove 111, and the large-current male terminal 2 is inserted into the guide groove 61 of the large-current female terminal 6, so that stable assembly is formed, and at this time, the pressing portion 122 at the rear end of the lock catch 12 is released, the locking hook 121 at the front end of the lock catch 12 is pressed downward and hooked in the locking groove 531 of the socket 500 under the elastic force of the torsional spring 55, and the torsional spring 55 continuously provides elastic force to make the locking hook 121 and the locking groove 531 firmly locked, so that the plug 100 and the socket 500 can be effectively prevented from being accidentally separated, and the operation is very simple, convenient, and efficient without the need for tool cooperation. When the plug 100 needs to be pulled out relative to the socket 500, the pressing portion 122 at the rear end of the lock catch 12 is directly pressed to make the locking hook 121 at the front end of the lock catch 12 upwardly tilted to be separated from the locking groove 531, so that the purpose of unlocking is achieved, and the operation is very simple, convenient, and efficient without the need for tool cooperation.

[0029] The mating portion 11 is provided with a ring groove 112, and the ring groove 112 is provided with a sealing waterproof ring 14, and after the mating portion 11 is inserted into the mating groove 51, a plurality of sealing protrusions formed on the outer surface of the sealing waterproof ring 14 are in extrusion contact with the inner wall of the mating groove 51, so that internal waterproof is achieved.

[0030] The assembly structure of the lock catch 12 and the insulating base 1 is that: the upper end of the insulating base 1 is integrally formed with a pivot part 13, the pivot part 13 is provided with a first shaft hole 131 which is transversely through, and the pivot part 13 is provided with a limiting groove 132 inside, the middle part of the lock catch 12 is downwardly formed with a protruding part 123, the protruding part 123 is provided with a second shaft hole 124 which is transversely through, the protruding part 123 is pressed into the pivot part 13 from top to bottom, the pin shaft 54 is arranged in the first shaft hole 131 and the second shaft hole 124, and the end of the pin shaft 54 is riveted or clamped by the snap spring 56 on the outer side of the pivot part 13 to limit the outer side of the pivot part 13, so that the protruding part 123 is pivoted with the pivot part 13, the torsion spring 55 is sleeved on the pin shaft 54, one end of the torsion spring 55 abuts against the limiting groove 132, and the other end of the torsion spring 55 abuts against the lower end surface of the lock catch 12, thereby ensuring the stable assembly structure of the torsion spring, preventing the torsion spring from being dislocated, and ensuring that the torsion spring provides stable elastic force for the lock catch 12. In the embodiment, the end of the pin shaft 54 is clamped by the snap spring 56 to limit the outer side of the pivot part 13, wherein the end of the pin shaft 54 is provided with a groove for clamping the snap spring 56.

[0031] The upper end of the pressing part 122 is further formed with a plurality of upward protruding anti-skid ribs 125, so that when the pressing part 122 is pressed by the fingers, the anti-skid ribs 125 can be directly contacted, and good anti-skid effect can be achieved, thereby facilitating the fingers to smoothly press down the pressing part 122 and improving the operation convenience.

[0032] The rear end of the large-current male terminal 2 protrudes out of the rear end of the insulating base 1 and is welded in conduction with the wire 8; the rear end of the insulating base 1 is further injection molded with a plastic outer mold 4, the plastic outer mold 4 wraps the rear end of the insulating base 1 and the wire 8, and the part of the plastic outer mold 4 corresponding to the wire 8 is formed with an SR head 41, the SR head 41 is provided with a plurality of avoiding grooves 411 which are convenient for bending and can bend the wire 8, avoiding the bending and breaking phenomenon between the wire 8 and the plastic outer mold 4, and improving the quality and service life of the product.

[0033] The rear end of the plastic outer mold 4 is provided with a pinching groove 42 which is convenient for the fingers to pinch tightly, the pinching groove 42 extends to the upper end surface and the two side surfaces of the plastic outer mold 4, and the cross section of the pinching groove 42 is concave arc-shaped, the design of the pinching groove 42 is to facilitate the fingers of the user to stably pinch the plastic outer mold 4, and is used for pulling the plastic outer mold 4 in the opposite direction of the socket, thereby pulling out the plug relative to the socket, and the use is more convenient.

[0034] The number of the large current male terminals 2 is two, which are positive and negative large current male terminals respectively, and first positive and negative marks are arranged on the two sides of the front end surface of the adapter part 11 respectively, which are located outside the positive and negative large current male terminals respectively, so as to distinguish the positive and negative terminals and avoid the reverse insertion.

[0035] Correspondingly, the number of the large current female terminals 6 and the plug-in convex parts 52 is two, which are positive and negative large current female terminals respectively, and second positive and negative marks are arranged on the front end surface of the two plug-in convex parts 52 respectively, which are located outside the positive and negative large current female terminals respectively, so as to distinguish the positive and negative terminals and avoid the reverse insertion.

[0036] The plug-in convex part 52 is provided with a first insertion hole 521 at the front end, and the plastic seat 5 is provided with a first installation groove 522 at the rear end, which penetrates the first insertion hole 521, the diameter of the first installation groove 522 is larger than that of the first insertion hole 521, so that a step is formed at the contact part of the first installation groove 522 and the first insertion hole 521; the large current female terminal 6 is embeddedly installed in the first installation groove 522, and the front end of the large current female terminal 6 abuts against the step, and the lead-through groove 61 of the large current female terminal 6 is connected with the first insertion hole 521.

[0037] The rear end of the large current female terminal 6 is provided with a first wiring groove 62, which is isolated from the lead-through groove 61, which can effectively prevent the first wiring groove 62 of the large current female terminal 6 from being affected by the metal wire core inserted into the lead-through groove 61 when the metal wire core is inserted into the first wiring groove 62. The rear end of the large current female terminal 6 is provided with a stepped groove 63 penetrating the first wiring groove 62, so that when the metal wire core inserted into the first wiring groove 62 is welded, the solder is locally attached to the stepped groove 63, which can improve the welding quality; the insulating seat 1 is also provided with a male signal terminal 3; the plastic seat 5 is also provided with a female signal terminal 7 for plugging with the male signal terminal 3.

[0038] In summary, the plug 100 and the socket 500 are inserted, the pressing portion 122 at the rear end of the lock catch 12 is pressed down first, the lock hook 121 at the front end of the lock catch 12 is raised upward, the plug 100 is inserted into the socket 500, the butt joint portion 11 of the plug 100 is inserted into the butt joint groove 51 of the socket 500, meanwhile, the plug insertion protrusion 52 is inserted into the plug slot 111, the large current male terminal 2 is inserted into the guide slot 61 of the large current female terminal 6, thereby forming stable assembly, at this time, the pressing portion 122 at the rear end of the lock catch 12 is released, the lock hook 121 at the front end of the lock catch 12 is pressed down under the elastic force of the torsion spring and is hooked in the lock slot 531 of the socket 500, and the torsion spring continuously provides elastic force, the lock hook 121 and the lock slot 531 are firmly locked, thereby effectively preventing the plug 100 and the socket 500 from being accidentally separated, the operation is very simple and convenient, no tool is needed for cooperation operation, and the efficiency is also very high; when the plug 100 needs to be pulled out relative to the socket 500, the pressing portion 122 at the rear end of the lock catch 12 is directly pressed down, the lock hook 121 at the front end of the lock catch 12 is raised upward to be separated from the lock slot 531, the purpose of unlocking is achieved, the operation is very simple and convenient, no tool is needed for cooperation operation, and the efficiency is also very high.

[0039] Of course, the above only describes specific embodiments of the utility model, and does not limit the utility model implementation range, equivalent changes or modifications made according to the structure, features and principles described in the utility model patent application scope should be included in the utility model patent application scope.

Claims

1. A high-current battery replacement motorcycle connector, comprising a plug (100) and a socket (500) which are fixed together by plugging and form a wire guide, the plug (100) comprises an insulating seat (1) and a plurality of high-current male terminals (2) arranged in the insulating seat (1), the insulating seat (1) is provided with a mating portion (11) at the front end, the mating portion (11) is provided with a plurality of plug slots (111) spaced apart from each other at the front end, and one high-current male terminal (2) is exposed in one plug slot (111); the socket (500) comprises a plastic seat (5) and a plurality of high-current female terminals (6) arranged in the plastic seat (5), the plastic seat (5) is provided with a mating slot (51) at the front end and a plurality of plug convex portions (52) located in the mating slot (51) and spaced apart from each other and matched with the plug slots (111), one high-current female terminal (6) is exposed at the front end of one plug convex portion (52), and the high-current female terminal (6) has a guide slot (61) for inserting the high-current male terminal (2); the plastic seat (5) is further formed with an outwardly protruding mounting baffle (53) at the front end, characterized in that the mounting baffle (53) is provided with a locking groove (531) at the upper end of the rear side, and the insulating seat (1) is provided with a lock catch (12) which is pivotally connected to the upper end of the insulating seat (1) by a pin shaft (54) cooperating with a torsion spring (55), the lock catch (12) has a lock hook (121) at the front end matched with the locking groove (531), the lock hook (121) at the front end of the lock catch (12) is pressed downward under the elastic force of the torsion spring (55) and hooks the locking groove (531), and the pressing portion (122) at the rear end of the lock catch (12) is upwardly raised.

2. The high current battery swap scooter connector of claim 1, wherein: the insulating seat (1) is integrally formed with a pivot portion (13) at the upper end, the pivot portion (13) is provided with a first shaft hole (131) passing through horizontally, and the pivot portion (13) is provided with a limiting groove (132) inside, the lock catch (12) is downwardly formed with a protruding portion (123) at the middle portion, the protruding portion (123) is provided with a second shaft hole (124) passing through horizontally, the protruding portion (123) is pressed into the pivot portion (13) from top to bottom, the pin shaft (54) is arranged in the first shaft hole (131) and the second shaft hole (124), and the pin shaft (54) is riveted at the outer side of the pivot portion (13) at the end, so that the protruding portion (123) and the pivot portion (13) are pivotally connected together, the torsion spring is sleeved on the pin shaft (54), and one end of the torsion spring abuts against the limiting groove (132) and the other end abuts against the lower end surface of the lock catch (12).

3. The high current battery swap scooter connector of claim 1, wherein: the pressing portion (122) is further formed with a plurality of upwardly protruding anti-slip ribs (125) at the upper end.

4. The high current battery swap scooter connector of any one of claims 1-3, wherein: the mating portion (11) is provided with a ring groove (112) at the periphery, and the ring groove (112) is provided with a sealing waterproof ring (14), after the mating portion (11) is inserted into the mating slot (51), a plurality of sealing ribs formed on the outer surface of the sealing waterproof ring (14) are in extrusion contact with the inner wall of the mating slot (51).

5. The high current battery swap scooter connector of any one of claims 1-3, wherein: The large current male terminal (2) extends out of the rear end of the insulating base (1) and is welded with the wire (8); the rear end of the insulating base (1) is also injection molded with a plastic outer mold (4) which wraps the rear end of the insulating base (1) and the wire (8), and the part of the plastic outer mold (4) corresponding to the wire (8) is formed with an SR head (41) which is provided with a plurality of avoiding grooves (411) for easy bending.

6. The high current battery swap scooter connector of claim 5, wherein: The rear end of the plastic outer mold (4) is provided with a pinch groove (42) for easy pinching with fingers to exert force, which extends to the upper end face and the two side faces of the plastic outer mold (4), and the cross section of the pinch groove (42) is concave arc-shaped.

7. The high current swap connector of any one of claims 1-3, wherein: The number of the large current male terminals (2) is two, which are a positive large current male terminal and a negative large current male terminal, and the front end face of the butt joint part (11) is also provided with a first positive mark and a first negative mark respectively, which are located outside the positive large current male terminal and the negative large current male terminal respectively.

8. The high current swap connector of any one of claims 1-3, wherein: The front end of the plug-in convex part (52) is provided with a first jack (521), and the rear end of the plastic base (5) is forwardly provided with a first installation groove (522) which penetrates the first jack (521), the diameter of the first installation groove (522) is larger than that of the first jack (521), so that a step is formed at the contact part of the first installation groove (522) and the first jack (521); the large current female terminal (6) is embeddedly installed in the first installation groove (522), and the front end of the large current female terminal (6) abuts against the step, and the lead-through groove (61) of the large current female terminal (6) is butted with the first jack (521).

9. The high current swap connector of any one of claims 1-3, wherein: The rear end of the large current female terminal (6) is provided with a first wiring groove (62) which is isolated from the lead-through groove (61), and the rear end of the large current female terminal (6) is provided with a stepped groove (63) which penetrates the first wiring groove (62); the insulating base (1) is also provided with a male signal terminal (3); the plastic base (5) is also provided with a female signal terminal (7) which is used for plug-in butt joint with the male signal terminal (3).

10. The high current battery swap scooter connector of claim 7, wherein: The number of the large current female terminals (6) and the plug-in convex parts (52) is two, the two large current female terminals (6) are a positive large current female terminal and a negative large current female terminal respectively, and the front end face of the two plug-in convex parts (52) is provided with a second negative mark and a second positive mark respectively, which are located outside the positive large current female terminal and the negative large current female terminal respectively.

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