CN220172414U - Terminal, connecting device and vehicle - Google Patents

Abstract

The utility model discloses a terminal, a connecting device and a vehicle, wherein the terminal comprises a plug-in part; the inserting part is provided with an inserting channel, and an abutting elastic sheet and a pre-pressing piece are fixed in the inserting channel; the plugging channel is provided with a first hole surface, a second hole surface and a hole side surface; the first hole surface and the second hole surface are oppositely arranged along the height direction of the terminal, and the hole side surface is connected between the first hole surface and the second hole surface; one end of the supporting elastic sheet is fixedly connected with the first hole surface of the plugging channel, and the other end of the supporting elastic sheet extends obliquely to the second hole surface of the plugging channel; the pre-pressing piece is fixed on the side surface of the hole and is propped against one side of the propping elastic piece, which faces the second hole surface. The pre-pressing piece is pressed against the elastic piece to enable the elastic piece to have initial forward force, when the plug-in terminal is connected with the terminal, the initial forward force is overlapped with resilience force generated by the elastic piece when the plug-in terminal is inserted into the terminal, and therefore the plug-in terminal can be clamped more tightly.

Description

Terminal, connecting device and vehicle

Technical Field

The utility model relates to the technical field of wire harness connection, in particular to a terminal, a connecting device and a vehicle.

Background

Connectors are widely used in the industry of vehicles and the like as devices for connecting wire harnesses. A common connector is used in pairs, and the connectors used in pairs are referred to as a male connector and a female connector, respectively, the male connector generally including a plug terminal and the female connector generally including a terminal. When two electric devices are required to be connected, the plug-in terminal is connected with one electric device, the terminal is connected with the other electric device, and then the plug-in terminal and the terminal are plugged together, so that the electric connection of the two electric devices is realized.

However, with the increasing intelligence of vehicles, the integration level of the whole vehicle is higher, more functions are required to be integrated in the same volume, and more connectors are required to be used. Miniaturization of connectors has become an important trend, meaning miniaturization of plug terminals and terminals. After miniaturization of the terminals, the higher forward force cannot be provided due to the limitation of the volume, and thus the reliability of the connection between the plug terminals and the terminals is low.

Disclosure of Invention

The utility model aims to provide a terminal, a connecting device and a vehicle, wherein the terminal can provide higher forward force in a limited space, and the connection reliability of a plug-in terminal and the terminal is improved.

A first aspect of the present utility model provides a terminal comprising: a plug-in part; the inserting part is provided with an inserting channel, and an abutting elastic sheet and a pre-pressing piece are fixed in the inserting channel; the plugging channel is provided with a first hole surface, a second hole surface and a hole side surface; the first hole surface and the second hole surface are oppositely arranged along the height direction of the terminal, and the hole side surface is connected between the first hole surface and the second hole surface; one end of the supporting elastic sheet is fixedly connected with the first hole surface of the plugging channel, and the other end of the supporting elastic sheet extends obliquely to the second hole surface of the plugging channel; the pre-pressing piece is fixed on the side surface of the hole and is propped against one side of the propping elastic piece, which faces the second hole surface.

In some embodiments, the holding spring comprises a first pre-pressing section and an extension section connected along the length direction of the terminal; one end of the first pre-pressing section, which is away from the extension section, is fixedly connected with a first hole surface, and the extension section extends obliquely to a second hole surface; the pre-pressing piece is propped against the first pre-pressing section to enable the first pre-pressing section to elastically deform, so that the extending section has first forward force.

In some embodiments, a contact protrusion is convexly arranged at one end of the extension section away from the pre-pressing section, and the contact protrusion faces the second hole surface; the contact protrusion is for contacting with the plug terminal.

In some embodiments, the supporting elastic piece further comprises a second pre-pressing section, one end of the second pre-pressing section is fixedly connected with one end of the extending section, which is away from the first pre-pressing section, and the other end of the second pre-pressing section is bent to be located between the extending section and the first hole surface; the pre-pressing piece is propped against the first pre-pressing section, and the second pre-pressing section is elastically deformed to be propped against the second hole surface, so that the extension section has second positive force.

In some embodiments, a supporting protrusion is further arranged in the plugging channel, and the supporting protrusion is convexly arranged on the second hole surface; the supporting protrusion faces the second pre-pressing section.

In some embodiments, an auxiliary spring is further arranged in the plugging channel, one end of the auxiliary spring is fixedly connected with the first hole surface, and the other end of the auxiliary spring extends obliquely to one side, facing the extension section, away from the second hole surface; the pre-pressing piece is propped against the first pre-pressing section, and the auxiliary elastic sheet is elastically deformed to be propped against one side of the extension section, which is away from the second hole surface, so that the extension section has a third positive force.

In some embodiments, the plug portion is square, the plug portion including a first perimeter wall, a second perimeter wall, a third perimeter wall, and a fourth perimeter wall; the first peripheral wall, the third peripheral wall, the second peripheral wall and the fourth peripheral wall are sequentially connected end to form an inserting channel; the first peripheral wall and the second peripheral wall are opposite in the height direction of the terminal, and the second peripheral wall and the fourth peripheral wall are opposite in the width direction of the terminal; the first hole surface is positioned on the first peripheral wall, the second hole surface is positioned on the second peripheral wall, and the hole side surfaces are positioned on the third peripheral wall and the fourth peripheral wall.

In some embodiments, the first peripheral wall is provided with a clamping protrusion, the fourth peripheral wall is provided with a clamping groove, and the clamping protrusion is fixed in the clamping groove.

In some embodiments, a side of the second peripheral wall facing away from the first peripheral wall is provided with an error-proofing boss and a connecting elastic piece, and the error-proofing boss and the connecting elastic piece are used for being matched with the first sheath.

In some embodiments, the second peripheral wall includes a first connection plate and a second connection plate stacked in a thickness direction of the terminal, and the first connection plate is located on a side toward the first peripheral wall, and the second connection plate is located on a side away from the first peripheral wall; one side of the first connecting plate is fixedly connected with one side of the third peripheral wall far away from the first peripheral wall, and the other side of the first connecting plate extends to the fourth peripheral wall; one side of the second connecting plate is fixedly connected with one side of the fourth peripheral wall far away from the first peripheral wall, and the other side of the second connecting plate extends to one side of the third peripheral wall far away from the first peripheral wall; the clamping bulge is arranged on the first connecting plate; the error-proof boss and the connecting spring piece are arranged on the second connecting plate.

In some embodiments, the terminal further comprises a clamping portion, the clamping portion and the plugging portion are connected along the length direction of the terminal, the clamping portion comprises a first clamping section and a second clamping section, the first clamping section is used for clamping the conductive inner core of the wiring harness, and the second clamping section is used for clamping the insulating coating layer of the wiring harness.

In some embodiments, a limiting protrusion is further arranged in the plugging channel, and the limiting protrusion is located at the opening of the plugging channel.

A second aspect of the present utility model provides a connecting device comprising: a plug terminal and a terminal according to any one of the first aspects of the present utility model; the terminal penetrates into the inserting channel and is inserted between the abutting elastic sheet and the second hole surface, and the inner wall surfaces of the abutting elastic sheet and the inserting channel are clamped with the inserting terminal.

A third aspect of the utility model provides a vehicle comprising the connecting device in the second aspect of the utility model.

In the utility model, the pre-pressing piece is propped against the propping elastic piece, so that the propping elastic piece generates downward elastic deformation, and at the moment, the propping elastic piece has a tendency of rebound upwards to restore a natural state. Because the supporting elastic sheet is pressed by the pre-pressing piece, the supporting elastic sheet cannot restore to a natural state, but the supporting elastic sheet can generate upward pre-tightening force, and the pre-tightening force is the initial forward force.

When the plug terminal penetrates into the plug channel and extends between the abutting elastic piece and the second hole surface, the plug terminal pushes the abutting elastic piece, so that the abutting elastic piece moves downwards to be separated from the pre-pressing piece, in other words, the downward elastic deformation of the abutting elastic piece is increased. The elastic deformation of the abutting elastic sheet by the plug terminal also enables the abutting elastic sheet to generate upward resilience force, and the resilience force is overlapped with the initial forward force to form upward forward force which acts on the plug terminal. Meanwhile, the inner wall surface of the plugging channel can apply downward acting force to the plugging terminal, and the plugging terminal is fixed when the downward forward force and the downward forward force jointly act. From the above, the pre-pressing piece is propped against the propping elastic piece, so that the propping elastic piece has initial forward force, when the plug terminal is connected with the terminal, the initial forward force is overlapped with the resilience force generated by the propping elastic piece when the plug terminal is inserted into the terminal, and the plug terminal can be clamped more tightly. That is, by arranging the pre-pressing piece to press against the elastic piece, the terminal can provide higher forward force in a limited space, and the connection reliability of the plug-in terminal and the terminal is improved.

In addition, the included angle between the abutting elastic piece and the inner wall surface of the plugging channel also affects the insertion force of the plugging terminal, and in general, the larger the included angle between the abutting elastic piece and the inner wall surface of the plugging channel is, the smaller the insertion force when the plugging terminal extends between the abutting elastic piece and the second hole surface is, and the smaller the damage to the abutting elastic piece is correspondingly. The smaller the included angle between the abutting elastic piece and the inner wall surface of the inserting channel is, the larger the inserting force is when the inserting terminal extends between the abutting elastic piece and the second hole surface, and the larger the damage to the abutting elastic piece is correspondingly.

According to the utility model, the pre-pressing piece is pressed against the supporting elastic piece, so that after the supporting elastic piece is deformed downwards, compared with a scheme without the pre-pressing piece in the prior art, the included angle between the supporting elastic piece and the inner wall surface of the plugging channel is reduced, and therefore the insertion force of the plugging terminal when the plugging terminal is inserted into the terminal is reduced, and the damage of the plugging terminal to the supporting elastic piece is correspondingly reduced.

Drawings

In order to more clearly illustrate the technical solution of the present utility model, the drawings that are required to be used in the embodiments will be briefly described.

Fig. 1 is a schematic structural diagram of a connection device according to an embodiment of the present utility model.

Fig. 2 is a schematic structural view of a terminal of the connection device shown in fig. 1.

Fig. 3 is a schematic view of the structure of the terminal shown in fig. 2 in another direction.

Fig. 4 is a schematic cross-sectional structure of the terminal shown in fig. 2.

Fig. 5 to 10 are schematic views illustrating a process of manufacturing the insertion portion of the terminal shown in fig. 2.

Reference numerals illustrate: 1000-connecting device, 100-terminal, 110A-plug part, 101-plug channel, 102-plug gap, 103-first peripheral wall, 104-second peripheral wall, 105-third peripheral wall, 106-fourth peripheral wall, 107-first connecting plate, 108-second connecting plate, 109-clamping protrusion, 110-clamping groove, 111-error-proof boss, 112-connecting spring piece, 113-first hole face, 114-second hole face, 120-clamping part, 121-first clamping section, 122-second clamping section, 10-abutting spring piece, 11-first pre-pressing section, 12-extending section, 13-second pre-pressing section, 14-contact protrusion, 20-pre-pressing piece, 30-auxiliary spring piece, 40-supporting protrusion, 50-limiting protrusion, 200-plug terminal.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

An embodiment of the utility model provides a vehicle, which comprises a connecting device.

Referring to fig. 1, fig. 1 is a connecting device 1000 according to an embodiment of the present utility model, for convenience of description, a Y-axis direction is defined as a length direction of the connecting device 1000, an X-axis direction (refer to an X-axis in fig. 2) is a width direction of the connecting device 1000, and a Z-axis direction is a height direction of the connecting device 1000. The X axis, the Y axis and the Z axis are mutually perpendicular.

The connection device 1000 includes a first connector including a terminal 100 and a first sheath (not shown) inside which the terminal 100 is mounted, and a second connector. The second connector includes a plug terminal 200 and a second jacket (not shown) inside which the plug terminal 200 is mounted. The first connector may be connected to the second connector, i.e. the terminal 100 is connected to the plug terminal 200. The terminal 100 may be a female terminal, the first sheath may be a female sheath, the plug terminal 200 may be a male terminal, and the second sheath may be a male sheath.

When the plug terminal is used, the terminal 100 is connected with a first electric device through a wire harness, the plug terminal 200 is connected with a second electric device through the wire harness, then the two second jackets and the first jacket are plugged, the plug terminal 200 is connected with the terminal 100, and the connection between the first electric device and the second electric device can be realized.

The first electrical device may be, for example, a power supply, and the second electrical device may be a vehicle controller, so that the power supply supplies power to the vehicle controller through plugging the plug terminal 200 and the terminal 100. The first electric device may also be an external charging device, and the second electric device may be a power source of the vehicle, and the external charging device may charge the power source of the vehicle by plugging the plug terminal 200 and the terminal 100. The first electric device may also be a whole vehicle controller, and the second electric device may be a central control display screen or an audio device, etc., which is not limited by the embodiment of the utility model.

With continued reference to fig. 1, in the present embodiment, the terminal 100 includes a socket portion 110A and a clamping portion 120 that are sequentially and fixedly connected along the Y-axis direction. The plugging portion 110A is used for plugging the plugging terminal 200, and the clamping portion 120 is used for clamping the wire harness.

The clamping portion 120 includes a first clamping section 121 and a second clamping section 122, wherein the first clamping section 121 is used for clamping a conductive inner core of the wire harness, and the second clamping section 122 is used for clamping an insulating coating layer of the wire harness. It will be appreciated that the wire harness includes a conductive core, typically copper, and an insulating coating, typically rubber, that is applied to the conductive core to insulate the conductive core from the environment. When the wire harness is connected with the clamping part 120 of the terminal 100, the insulation coating layer needs to be peeled off by a section matched with the first clamping section 121, so that the first clamping section 121 is in direct contact with the conductive inner core, and the terminal 100 and the wire harness are electrically connected.

The plugging part 110A is provided with a plugging channel 101, the inside of the plugging channel 101 is fixedly provided with a supporting elastic sheet 10 and a pre-pressing piece 20, a plugging gap 102 is formed between the supporting elastic sheet 10 and the inner wall surface of the plugging channel 101, and the plugging gap 102 is used for plugging the plugging terminal 200; the pre-pressing piece 20 abuts against the abutting elastic piece 10 to elastically deform the abutting elastic piece 10, so that the abutting elastic piece 10 has an initial forward force. The height dimension of the plugging gap 102 is smaller than the thickness dimension of the plugging terminal 200, and the height dimension of the plugging gap 102 may be 0, that is, the inner wall surfaces of the abutting elastic sheet 10 and the plugging channel 101 are in contact with each other, and when the plugging gap 102 is plugged between the abutting elastic sheet 10 and the inner wall surface of the plugging channel 101, the inner wall surfaces of the abutting elastic sheet 10 and the plugging channel 101 can be separated from each other along the Z-axis direction so as to clamp the plugging terminal 200.

In this embodiment, the pre-pressing member 20 is pressed against the pressing spring 10, so that the pressing spring 10 generates a downward (negative Z-axis direction) elastic deformation, and at this time, the pressing spring 10 tends to rebound upward (positive Z-axis direction) to restore to a natural state. Since the holding spring 10 is pressed by the pre-pressing member 20, the holding spring 10 cannot recover the natural state, but the holding spring 10 generates an upward pre-tightening force, which is the initial forward force.

When the plug terminal 200 penetrates the plug channel 101 and extends into the plug gap 102, the plug terminal 200 pushes the holding spring 10, so that the holding spring 10 moves downward to be separated from the pre-pressing member 20, in other words, the downward elastic deformation of the holding spring 10 increases. The elastic deformation of the abutting elastic piece 10 by the plug terminal 200 also causes the abutting elastic piece 10 to generate an upward elastic force, and the elastic force is superposed with the initial forward force to act on the plug terminal 200 as an upward forward force. At the same time, the inner wall surface of the mating channel 101 applies a downward force to the mating terminal 200, and the mating terminal 200 is fixed when the downward forward force and the downward forward force cooperate.

As can be seen from the above, in the present embodiment, the pre-pressing piece 20 presses the pressing spring 10 to make the pressing spring 10 have an initial forward force, and when the plug terminal 200 is connected to the terminal 100, the initial forward force is overlapped with the resilience force generated by the pressing spring 10 when the plug terminal 200 is inserted into the terminal 100, so that the plug terminal 200 is clamped more tightly. That is, by arranging the pre-pressing piece 20 to press against the elastic piece 10, the terminal 100 can provide higher forward force in a limited space, and the connection reliability of the plug-in terminal 200 and the terminal 100 is improved.

Even in the case where the type of the plug terminal 200 is small, for example, the type of the plug terminal 200 is 0.64, 0.5 or even smaller, the type of 0.64, 0.5 means here, as compared with the conventional case where the pre-pressing member 20 is not provided: the width dimension of the plug terminal 200 in the X-axis direction is 0.64 mm, 0.5 mm. The size of the mating terminal 100 is also relatively small, and the terminal 100 may have sufficient forward force to secure the plug terminal 200. The reason is that in the conventional scheme without the pre-pressing member 20, if the supporting spring 10 needs to have a sufficient forward force when the plug-in terminal 200 is inserted into the terminal 100, the inclination angle of the supporting spring 10 with respect to the inner wall surface of the plug-in channel 101 needs to be large enough, but because the type of the plug-in terminal 200 is small, the type of the mating terminal 100 is also small, so that the terminal 100 cannot provide a sufficient space for the inclination of the supporting spring 10, and therefore, when the plug-in terminal 200 is plugged into the terminal 100, the terminal 100 cannot provide a sufficient clamping force for the plug-in terminal 200.

In addition, the angle between the abutting elastic piece 10 and the inner wall surface of the plugging channel 101 also affects the insertion force of the plugging terminal 200, and in general, the larger the angle between the abutting elastic piece 10 and the inner wall surface of the plugging channel 101 is, the smaller the insertion force when the plugging terminal 200 extends into the plugging gap 102 is, and the smaller the damage to the abutting elastic piece 10 is correspondingly. The smaller the included angle between the abutting elastic sheet 10 and the inner wall surface of the plugging channel 101 is, the larger the plugging force when the plugging terminal 200 stretches into the plugging gap 102 is, and the larger the damage to the abutting elastic sheet 10 is correspondingly.

In this embodiment, the pre-pressing member 20 presses the pressing spring 10, so that after the pressing spring 10 deforms downward, compared with the conventional scheme without the pre-pressing member 20, the included angle between the pressing spring 10 and the inner wall surface of the plugging channel 101 is reduced, and therefore the insertion force of the plugging terminal 200 when the plugging terminal 200 is inserted into the terminal 100 is reduced, and the damage of the plugging terminal 200 to the pressing spring 10 is correspondingly reduced.

In the present embodiment, the angle between the abutting spring plate 10 and the inner wall surface of the plugging channel 101 is between 8 degrees and 18.5 degrees. The angle between the abutting spring piece 10 and the inner wall surface of the insertion passage 101 may be specifically 8 degrees, 8.5 degrees, 11 degrees, 12 degrees, 13 degrees, 14.5 degrees, 15 degrees, 15.5 degrees, 16 degrees, 17 degrees, 18 degrees, 18.5 degrees, or the like. In the case of the pre-pressing member 20 not conventionally provided, the angle between the abutting elastic sheet 10 and the inner wall surface of the plugging passage 101 is about 19 degrees, and it can be seen that in this embodiment, after the pre-pressing member 20 is provided, the angle between the abutting elastic sheet 10 and the inner wall surface of the plugging passage 101 is reduced.

In the present embodiment, referring to fig. 2 and 3, the plugging portion 110A is square, and the plugging portion 110A includes a first peripheral wall 103, a second peripheral wall 104, a third peripheral wall 105, and a fourth peripheral wall 106; the first peripheral wall 103, the third peripheral wall 105, the second peripheral wall 104 and the fourth peripheral wall 106 are sequentially connected end to form the plugging channel 101; the first peripheral wall 103 and the second peripheral wall 104 are opposed in the Z-axis direction, and the second peripheral wall 104 and the fourth peripheral wall 106 are opposed in the X-axis direction. The third peripheral wall 105 and the fourth peripheral wall 106 are perpendicular to the first peripheral wall 103, and the second peripheral wall 104 and the first peripheral wall 103 are parallel to each other, so that the shape of the plugging portion 110A is a regular cuboid, and since the plugging terminal 200 is rectangular sheet-like, the plugging portion 110A is kept in a regular cuboid, so that the plugging channel 101 is a regular square hole, and the plugging terminal 200 can be easily inserted. In other embodiments, the plugging portion 110A may be configured in a circular, triangular, oval or other shape, and the corresponding plugging channel 101 may be configured in a circular, triangular or oval shape, so long as the plugging terminal 200 can be plugged in.

In the present embodiment, the second peripheral wall 104 includes a first connection plate 107 and a second connection plate 108 stacked in the Z-axis direction, and the first connection plate 107 is located on a side toward the first peripheral wall 103, and the second connection plate 108 is located on a side away from the first peripheral wall 103. One side of the first connecting plate 107 is fixedly connected with one side of the third peripheral wall 105 away from the first peripheral wall 103, and the other side of the first connecting plate 107 extends to the fourth peripheral wall 106; one side of the second connection plate 108 is fixedly connected to the side of the fourth peripheral wall 106 away from the first peripheral wall 103, and the other side of the second connection plate 108 extends toward the side of the third peripheral wall 105 away from the first peripheral wall 103. Thus, the terminal 100 is easily manufactured by bending the whole sheet material a plurality of times, and the convenience of manufacturing is improved. In other embodiments, the second peripheral wall 104 may be integrally formed. In other embodiments, the second peripheral wall 104 may also include only the first connection plate 107.

In this embodiment, the first peripheral wall 103 is provided with a clamping protrusion 109, the fourth peripheral wall 106 is provided with a clamping groove 110, and the clamping protrusion 109 is fixed in the clamping groove 110. Specifically, some of the first connecting plates 107 facing the fourth peripheral wall 106 are provided with clamping protrusions 109, and the fourth peripheral wall 106 is provided with clamping grooves 110. The clamping protrusion 109 is fixedly clamped in the clamping groove 110, so that the first connecting plate 107 and the fourth peripheral wall 106 can be fixedly connected, the first peripheral wall 103, the second peripheral wall 104, the third peripheral wall 105 and the fourth peripheral wall 106 are ensured to be enclosed into a regular rectangle, and the risk of deformation of the terminal 100 is reduced. In other embodiments, the first connecting plate 107 and the fourth peripheral wall 106 may be connected using fasteners, welding, or the like.

In this embodiment, a fault-tolerant boss 111 and a connecting elastic piece 112 are disposed on a side of the second peripheral wall 104 facing away from the first peripheral wall 103, and the fault-tolerant boss 111 and the connecting elastic piece 112 are used for being matched with the first sheath. Specifically, the error-proofing boss 111 and the connecting elastic piece 112 are both disposed on the error-proofing boss 111 and the connecting elastic piece 112 are disposed on the second connecting plate 108. When the terminal 100 is mounted in the first sheath, the error-proofing boss 111 is matched with the guide chute on the first sheath, so that the terminal 100 is inserted into the first sheath in a correct posture. The connecting spring plate 112 is matched with the matching groove on the first sheath, so that the terminal 100 is fixed in the first sheath.

In this embodiment, referring to fig. 4, the plugging channel 101 is a square hole, and the plugging channel 101 has a first hole surface 113, a second hole surface 114 and a hole side surface; the first hole surface 113 and the second hole surface 114 are oppositely arranged along the Z-axis direction, and the hole side surface is connected between the first hole surface 113 and the second hole surface 114. The first hole surface 113 is a surface of the first peripheral wall 103 facing the second peripheral wall 104, and the second hole surface 114 is a surface of the second peripheral wall 104 facing the first peripheral wall 103. The hole side surface includes a first side surface which is a surface of the third peripheral wall 105 facing the fourth peripheral wall 106, and a second side surface which is a surface of the fourth peripheral wall 106 facing the third peripheral wall 105. The pre-press 20 may be secured to either the first side or the second side. The angle between the abutting elastic sheet 10 and the inner wall surface of the plugging channel 101 is specifically an included angle g between the surface of the extension section 12 located in the Z-axis direction and the first hole surface 113.

One end of the supporting spring plate 10 is fixedly connected with a first hole surface 113 of the plugging channel 101, and the other end of the supporting spring plate 10 extends obliquely to a second hole surface 114 of the plugging channel 101 and is provided with a plugging gap 102 with the second hole surface 114; the pre-pressing piece 20 is fixed on the hole side surface and abuts against one side of the abutting elastic piece 10 facing the second hole surface 114, so as to provide an initial forward force for the abutting elastic piece 10.

In this embodiment, with continued reference to fig. 4, the abutting spring 10 includes a first pre-pressing section 11, an extension section 12 and a second pre-pressing section 13. The first pre-compression section 11 and the extension section 12 are connected in the Y-axis direction. One end of the first pre-pressing section 11, which is far away from the extension section 12, is fixedly connected with a first hole surface 113, and the extension section 12 extends obliquely to a second hole surface 114. One end of the second pre-pressing section 13 is fixedly connected with one end of the extension section 12, which is away from the first pre-pressing section 11, and the other end of the second pre-pressing section 13 is bent to be positioned between the extension section 12 and the first hole surface 113.

In this embodiment, an auxiliary spring plate 30 is further disposed in the plugging channel 101, one end of the auxiliary spring plate 30 is fixedly connected to the first hole surface 113, and the other end of the auxiliary spring plate 30 extends obliquely to a side facing the extension section 12 and away from the second hole surface 114.

In this embodiment, the pre-pressing member 20 abuts against the first pre-pressing section 11 to elastically deform the first pre-pressing section 11, so that the extension section 12 has a first forward force; elastically deforming the second pre-compression section 13 to abut the second hole surface 114, so that the extension section 12 has a second forward force; the auxiliary elastic sheet 30 is elastically deformed to abut against a side of the extension section 12 facing away from the second hole surface 114, so that the extension section 12 has a third forward force. The initial forward force is the sum of the first forward force, the second forward force, and the third forward force.

In other embodiments, the supporting spring 10 may only include the first pre-pressing section 11 and the extending section 12, and the inserting channel 101 is provided with the auxiliary spring 30, where the initial forward force is the sum of the first forward force and the third forward force. In other embodiments, the abutting spring 10 includes a first pre-pressing section 11 and an extending section 12, and the plugging channel 101 is not provided with the auxiliary spring 30, and at this time, the initial forward force is the sum of the first forward force and the second forward force. In other embodiments, the supporting spring 10 only includes the first pre-pressing section 11 and the extending section 12, and the auxiliary spring 30 is not disposed in the plugging channel 101, and at this time, the first forward force is the initial forward force.

In this embodiment, with continued reference to fig. 4, the angle b between the surface of the extension 12 located in the negative Z-axis direction and the second hole surface 114 is equal to the angle g between the surface of the extension 12 located in the positive Z-axis direction and the first hole surface 113. The included angle b ranges from 8 degrees to 18.5 degrees, and the included angle b may specifically be 8 degrees, 8.5 degrees, 11 degrees, 12 degrees, 13 degrees, 14.5 degrees, 15 degrees, 15.5 degrees, 16 degrees, 17 degrees, 18 degrees, 18.5 degrees, or the like. In the case of the pre-pressing member 20 that is not conventionally provided, the angle between the surface of the extension 12 located in the negative Z-axis direction and the second hole surface 114 is about 19 degrees, and it can be seen that in this embodiment, after the pre-pressing member 20 is provided, the angle between the extension 12 and the second hole surface 114 is reduced, so that the extension 12 has an initial deformation, and thus the first forward force can be provided.

In this embodiment, with continued reference to fig. 4, the angle between the extension 12 and the second pre-compression section 13 is between 0 degrees and 8.5 degrees. Specifically, an included angle f between a surface of the extension section 12 located at one side of the negative direction of the Z axis and a surface of the second pre-pressing section 13 located at one side of the positive direction of the Z axis, where the included angle f may specifically be: 0 degrees, 0.5 degrees, 0.7 degrees, 0.9 degrees, 1 degrees, 1.2 degrees, 1.5 degrees, 2 degrees, 3 degrees, 4 degrees, 5 degrees, 6 degrees, 7 degrees, 8 degrees, 8.5 degrees, and so forth. In the case that the pre-pressing member 20 is not provided conventionally, the included angle between the extension section 12 and the second pre-pressing section 13 is about 9 degrees, and it can be seen that in this embodiment, the angle between the extension section 12 and the second pre-pressing section 13 is reduced by providing the pre-pressing member 20, so that the second pre-pressing section 13 has an initial deformation, and further, a second forward force can be provided.

In this embodiment, with continued reference to fig. 4, the included angle between the auxiliary elastic sheet 30 and the first hole surface 113 is between 19 degrees and 26.5 degrees. Specifically, the included angle d between the surface of the auxiliary elastic sheet 30 located in the negative Z-axis direction and the first hole surface 113 may specifically be 19 degrees, 20 degrees, 21 degrees, 21.5 degrees, 22 degrees, 23 degrees, 25 degrees, 26 degrees, 26.5 degrees, and so on. In the case that the pre-pressing piece 20 is not provided in the prior art, the included angle between the auxiliary elastic piece 30 and the first hole surface 113 is about 27 degrees, so in this embodiment, the included angle between the auxiliary elastic piece 30 and the first hole surface 113 can be reduced by providing the pre-pressing piece 20, so that the auxiliary elastic piece 30 has initial deformation, and further, a third forward force can be provided.

In other embodiments, the included angle b between the surface of the extension section 12 located in the negative Z-axis direction and the second hole surface 114 may be smaller than the conventional 19 degrees, the included angle f between the surface of the extension section 12 located in the negative Z-axis direction and the surface of the second pre-pressing section 13 located in the positive Z-axis direction may be equal to or smaller than the conventional 9 degrees, and the included angle d between the surface of the auxiliary elastic sheet 30 located in the negative Z-axis direction and the first hole surface 113 may be equal to or smaller than the conventional 27 degrees. At this time, the first forward force, the second forward force, and the third forward force may also be provided.

In this embodiment, with continued reference to fig. 4, the end of the extension section 12 away from the pre-pressing section is convexly provided with a contact protrusion 14, and the contact protrusion 14 is located in the plugging gap 102 and faces the second hole surface 114; the contact protrusion 14 is for contacting the plug terminal 200. When the plug terminal 200 extends into the plug gap 102, the contact protrusion 14 abuts against the plug terminal 200, so that the plug terminal 200 and the terminal 100 are electrically connected.

In this embodiment, with continued reference to fig. 4, the plugging channel 101 is further provided with a supporting protrusion 40, and the supporting protrusion 40 is protruding on the second hole surface 114; the support protrusions 40 face the second pre-compression section 13. When the plug terminal 200 is inserted into the plug channel 101 and extends into the plug gap 102, the second pre-pressing section 13 will deform downwards, and at this time, if the deformation of the second pre-pressing section 13 is too large, the second pre-pressing section 13 will contact with the supporting protrusion 40, and the supporting protrusion 40 plays a role in supporting the second pre-pressing section 13, so that the deformation of the second pre-pressing section 13 can be prevented from further increasing, and the risk that the supporting elastic sheet 10 releases the plug terminal 200 is reduced.

In this embodiment, with continued reference to fig. 4, a limiting protrusion 50 is further disposed in the plugging channel 101, and the limiting protrusion 50 is located at the opening of the plugging channel 101. The height of the limiting protrusion 50 is consistent with the height of the pre-pressing piece 20, and when the plug-in terminal 200 is inserted into the plug-in channel 101, the limiting protrusion 50 plays a role in preventing the interference between the plug-in terminal 200 and the pre-pressing piece 20 and the abutting elastic piece 10, so that the plug-in terminal 200 can accurately extend into the plug-in gap 102 from the upper side of the pre-pressing piece 20.

Referring to fig. 5, a schematic structure of the terminal 100 with the plug portion 110A being unfolded is shown, in which the abutting spring 10 and the first peripheral wall 103 are integrally formed, and one end of the abutting spring 10 extends away from the first peripheral wall 103. The unfolded state of the plug-in portion 110A can also be understood as a state to be processed into a finished plug-in portion 110A.

The process of folding the insertion portion 110A of the terminal 100 from the unfolded state to the state shown in fig. 1 is as follows:

referring to fig. 6, an end of the abutting elastic sheet 10 away from the first peripheral wall 103 is bent toward the direction close to the first peripheral wall 103 to form a second pre-pressed section 13.

Referring to fig. 7, the abutting elastic sheet 10 is bent again in a direction approaching the first peripheral wall 103 to form a first pre-pressing section 11 and an extension section 12.

Referring to fig. 8, the auxiliary elastic sheet 30 is obliquely bent toward the extension 12.

Referring to fig. 9, the first connection plate 107 is bent with respect to the third peripheral wall 105, and the second connection plate 108 is bent with respect to the fourth peripheral wall 106.

Referring to fig. 10, the third peripheral wall 105 is bent with respect to the first peripheral wall 103, and the fourth peripheral wall 106 is bent with respect to the first peripheral wall 103. At this time, the first connection plate 107 and the second connection plate 108 are in a stacked state, and the engaging protrusion 109 is engaged in the engaging groove 110. The terminal 100 in the unfolded state is in the finished state as shown in fig. 1.

The foregoing has outlined rather broadly the more detailed description of embodiments of the utility model in order that the detailed description of the principles and embodiments of the utility model may be implemented in conjunction with the detailed description of embodiments of the utility model that follows.

Claims (14)

1. A terminal, comprising: a plug-in part; the plug-in part is provided with a plug-in channel, and a supporting elastic sheet and a pre-pressing piece are fixed in the plug-in channel;

the plugging channel is provided with a first hole surface, a second hole surface and a hole side surface; the first hole surface and the second hole surface are oppositely arranged along the height direction of the terminal, and the hole side surface is connected between the first hole surface and the second hole surface;

one end of the supporting elastic piece is fixedly connected with the first hole surface of the inserting channel, and the other end of the supporting elastic piece extends obliquely to the second hole surface of the inserting channel; the pre-pressing piece is fixed on the side face of the hole and abuts against one side, facing the second hole face, of the abutting elastic piece.

2. The terminal of claim 1, wherein the holding spring comprises a first pre-compression section and an extension section connected along a length direction of the terminal; one end of the first pre-pressing section, which is away from the extending section, is fixedly connected with the first hole surface, and the extending section extends obliquely to the second hole surface; the pre-pressing piece is propped against the first pre-pressing section to enable the first pre-pressing section to elastically deform, so that the extending section has a first forward force.

3. The terminal according to claim 2, wherein an end of the extension section away from the pre-pressing section is convexly provided with a contact protrusion, the contact protrusion being directed toward the second hole surface; the contact protrusion is used for contacting with the plug terminal.

4. The terminal of claim 2, wherein the holding spring further comprises a second pre-compression section, one end of the second pre-compression section is fixedly connected with one end of the extension section away from the first pre-compression section, and the other end of the second pre-compression section is bent to be located between the extension section and the first hole surface; the pre-pressing piece is propped against the first pre-pressing section, and the second pre-pressing section is elastically deformed to be propped against the second hole surface, so that the extension section has second forward force.

5. The terminal of claim 4, wherein a supporting protrusion is further disposed in the plugging channel, and the supporting protrusion is protruding on the second hole surface; the support protrusion faces the second pre-compression section.

6. The terminal according to claim 2, wherein an auxiliary spring piece is further arranged in the plugging channel, one end of the auxiliary spring piece is fixedly connected with the first hole surface, and the other end of the auxiliary spring piece extends obliquely to one side, facing the extension section, away from the second hole surface; the pre-pressing piece is propped against the first pre-pressing section, and the auxiliary elastic sheet is elastically deformed to be propped against one side of the extending section, which is away from the second hole surface, so that the extending section has third forward force.

7. The terminal of any one of claims 1 to 6, wherein the mating portion is square, the mating portion including a first peripheral wall, a second peripheral wall, a third peripheral wall, and a fourth peripheral wall; the first peripheral wall, the third peripheral wall, the second peripheral wall and the fourth peripheral wall are connected end to end in sequence to form the plugging channel; the first peripheral wall and the second peripheral wall are opposed in the height direction of the terminal, and the second peripheral wall and the fourth peripheral wall are opposed in the width direction of the terminal;

the first hole face is located on the first peripheral wall, the second hole face is located on the second peripheral wall, and the hole side faces are located on the third peripheral wall and the fourth peripheral wall.

8. The terminal of claim 7, wherein the first peripheral wall is provided with a snap-in protrusion, and the fourth peripheral wall is provided with a snap-in groove, and the snap-in protrusion is fixed in the snap-in groove.

9. The terminal of claim 8, wherein a side of the second peripheral wall facing away from the first peripheral wall is provided with an error-proofing boss and a connecting spring for mating with a first jacket.

10. The terminal according to claim 9, wherein the second peripheral wall includes a first connection plate and a second connection plate stacked in a thickness direction of the terminal, and the first connection plate is located on a side toward the first peripheral wall, and the second connection plate is located on a side away from the first peripheral wall;

one side of the first connecting plate is fixedly connected with one side of the third peripheral wall far away from the first peripheral wall, and the other side of the first connecting plate extends to the fourth peripheral wall; one side of the second connecting plate is fixedly connected with one side of the fourth peripheral wall far away from the first peripheral wall, and the other side of the second connecting plate extends to one side of the third peripheral wall far away from the first peripheral wall;

the clamping protrusion is arranged on the first connecting plate; the error-proofing boss and the connecting elastic piece are arranged on the second connecting plate.

11. The terminal of any one of claims 1 to 6, further comprising a clamping portion, the clamping portion and the plug portion being connected along a length direction of the terminal, the clamping portion comprising a first clamping section for clamping a conductive inner core of a wiring harness and a second clamping section for clamping an insulating coating of the wiring harness.

12. The terminal of any one of claims 1 to 6, wherein a limiting protrusion is further provided in the mating channel, the limiting protrusion being located at an opening of the mating channel.

13. A connection device, comprising: plug terminals and terminals according to any one of claims 1 to 12; the terminal penetrates into the inserting channel and is inserted between the supporting elastic sheet and the second hole surface, and the supporting elastic sheet and the second hole surface are clamped with the inserting terminal.

14. A vehicle comprising a connecting device as claimed in claim 13.