Crimping member, connection terminal, connector, and vehicle

Abstract

The utility model relates to a crimping part, a connection terminal, a connector and a vehicle, the crimping part is used for crimping a cable, the cable comprises a conductive wire and an insulating layer wrapping the conductive wire, the insulating layer comprises a first insulating part and a second insulating part which are arranged at an interval along the extension direction of the conductive wire, and a part of the conductive wire is exposed between the first insulating part and the second insulating part. The crimping part comprises a first crimping part, a second crimping part and a third crimping part, the first crimping part is used for crimping the first insulating part, the second crimping part is used for crimping the exposed part of the conductive wire, and the third crimping part is used for crimping the second insulating part. In the embodiment of the invention, the exposed part of the conductive wire can be electrically connected with the second crimping part after being crimped, and the first crimping part and the third crimping part are respectively crimped with the first insulating part and the second insulating part of the cable, so that the first insulating part and the second insulating part can be used for sealing the end part of the exposed part of the conductive wire; therefore, corrosion is reduced, and additional parts do not need to be added.

Description

Technical Field

[0001] This application relates to the technical field of vehicles, and particularly to a crimping part, a connection terminal, a connector and a vehicle. Background Art

[0002] In recent years, with the development of the automotive industry, crimping terminals have been widely used in automotive connectors. Compared with traditional welded terminals, crimping terminals are physically connected, pollution-free and cost-saving, thus being widely used. However, the crimping method also brings additional risks.

[0003] Automobiles are usually exposed to humid or saline environments during use, resulting in the terminals being exposed to such environments as well. Moisture can cause corrosion of wires and terminals. Usually, the crimped ends of wires and terminals are open, that is, the wires are exposed at the crimped ends of the terminals. Moisture can penetrate through the open contact interface into the crimping interface between the wire and the terminal crimping part, leading to electrochemical corrosion and accelerating the corrosion and decomposition of the conductor and the terminal. Summary of the Utility Model

[0004] The embodiments of this application provide a crimping part, a connection terminal, a connector and a vehicle, which improve the sealing performance of the crimping part for crimping a cable to at least partially solve the above technical problems.

[0005] To achieve the above object, according to the first aspect of this application, a crimping part is provided, which includes a cable for crimping. The cable includes a conductive wire and an insulating layer wrapping the conductive wire. The insulating layer includes a first insulating part and a second insulating part arranged at intervals along the extension direction of the conductive wire, and part of the conductive wire is exposed between the first insulating part and the second insulating part.

[0006] The crimping part includes a first crimping part, a second crimping part and a third crimping part. The first crimping part is used for crimping the first insulating part, the second crimping part is used for crimping the exposed part of the conductive wire, and the third crimping part is used for crimping the second insulating part.

[0007] In some embodiments, the first crimping part, the second crimping part and the third crimping part are arranged at intervals.

[0008] In some embodiments, the first insulating part includes a first end far from the second crimping part and a second end close to the second crimping part, and the second end extends at least to the second crimping part.

[0009] In some embodiments, the first end extends beyond the first crimping part.

[0010] In some embodiments, the second insulating part extends at least from the third crimping part to the second crimping part.

[0011] In some embodiments, the first insulating portion includes a first sub-insulating portion and a second sub-insulating portion connected to each other, and the first sub-insulating portion is located on a side of the second sub-insulating portion away from the second insulating portion;

[0012] The conductive wire extends from an end of the second sub-insulating portion close to the first sub-insulating portion to an end of the second insulating portion away from the first sub-insulating portion.

[0013] In some embodiments, the first crimping portion includes a first sub-crimping portion and a second sub-crimping portion connected to each other, and the first sub-crimping portion is located on a side of the second sub-crimping portion away from the second crimping portion;

[0014] The first sub-crimping portion is used to crimp the first sub-insulating portion, and the second sub-crimping portion is used to crimp the second sub-insulating portion.

[0015] In some embodiments, a dimension of the first sub-crimping portion in a first direction is greater than a dimension of the second sub-crimping portion in the first direction, and the first direction is perpendicular to the extending direction.

[0016] In some embodiments, the first sub-crimping portion has a first end portion and a second end portion disposed opposite to each other, and the first end portion and the second end portion are respectively located on two sides of the cable;

[0017] The first end portion bends towards the second end portion, and the second end portion bends towards the first end portion.

[0018] In some embodiments, the second crimping portion includes a third sub-crimping portion, a fourth sub-crimping portion, and a fifth sub-crimping portion arranged in sequence along the extending direction;

[0019] A dimension of the fourth sub-crimping portion in a first direction is greater than a dimension of the third sub-crimping portion in the first direction, and the first direction is perpendicular to the extending direction;

[0020] The dimension of the fourth sub-crimping portion in the first direction is greater than the dimension of the fifth sub-crimping portion in the first direction.

[0021] In some embodiments, the fourth sub-crimping portion has a third end portion and a fourth end portion disposed opposite to each other, the third end portion bends towards the fourth end portion, and the fourth end portion bends towards the third end portion.

[0022] In some embodiments, the third sub-crimping portion has a fifth end portion and a sixth end portion which are oppositely arranged, the fifth end portion and the sixth end portion are respectively located on two sides of the cable, the fifth end portion bends towards a side away from the sixth end portion, and the sixth end portion bends towards a direction away from the fifth end portion;

[0023] The fifth sub-crimping portion has a seventh end portion and an eighth end portion which are oppositely arranged, the seventh end portion and the eighth end portion are respectively located on two sides of the cable, the seventh end portion bends towards a side away from the eighth end portion, and the eighth end portion bends towards a direction away from the seventh end portion.

[0024] In some embodiments, one side of the first crimping portion close to the cable has a first convex structure, one side of the second crimping portion close to the cable has a second convex structure, and one side of the third crimping portion close to the cable has a third convex structure.

[0025] In some embodiments, the first convex structure is located on a part of the first crimping portion close to the second crimping portion.

[0026] In some embodiments, the depth of the protrusion of the second convex structure is greater than the depth of the protrusion of the first convex structure, and the depth of the protrusion of the second convex structure is greater than or equal to the depth of the protrusion of the third convex structure.

[0027] In some embodiments, the density of the second convex structure is greater than the density of the first convex structure, and the density of the second convex structure is greater than the density of the third convex structure.

[0028] According to a second aspect of the present application, there is provided a connection terminal, including:

[0029] A wire portion crimped by the cable in any of the above embodiments; and

[0030] A crimping portion formed by crimping the cable with the crimping member in any of the above embodiments.

[0031] In some embodiments, the crimping portion includes the first crimping portion, the second crimping portion and the third crimping portion;

[0032] The minimum dimension of the first crimping portion in a first direction is less than or equal to the minimum dimension of the second crimping portion in the first direction, the minimum dimension of the second crimping portion in the first direction is less than or equal to the minimum dimension of the third crimping portion in the first direction, and the first direction is perpendicular to the extending direction of the cable.

[0033] In some embodiments, it further includes a plugging portion, and the plugging portion is connected to the first crimping portion.

[0034] According to a third aspect of the present application, a connector is further provided, including the connection terminal as described above.

[0035] According to a fourth aspect of the present application, a vehicle is further provided, including the connector as described above.

[0036] In the embodiment of the present application, the crimping member is used to crimp a cable. The cable includes a conductive wire and an insulating layer wrapping the conductive wire. The insulating layer includes a first insulating portion and a second insulating portion spaced apart along the extending direction of the conductive wire, and a part of the conductive wire is exposed between the first insulating portion and the second insulating portion. The crimping member includes a first crimping portion, a second crimping portion, and a third crimping portion. The first crimping portion is used to crimp the first insulating portion, the second crimping portion is used to crimp the exposed part of the conductive wire, and the third crimping portion is used to crimp the second insulating portion. In the embodiment of the present application, electrical connection can be achieved after the exposed part of the conductive wire is crimped with the second crimping portion. By providing the first crimping portion and the third crimping portion to crimp the first insulating portion and the second insulating portion of the cable respectively, the exposed end of the conductive wire can be sealed by the first insulating portion and the second insulating portion, thereby reducing corrosion without adding additional parts.

[0037] Other features and advantages of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0039] In order to more fully understand the present application and its beneficial effects, the following description will be made in conjunction with the drawings, where the same reference numerals represent the same parts in the following description.

[0040] Figure 1 is a schematic structural diagram of a crimping member provided by some embodiments of the present application;

[0041] Figure 2 is a schematic structural diagram of a cable placed on the crimping member provided by some embodiments of the present application;

[0042] Figure 3 is provided by some embodiments of the present application Figure 2 a top view structural diagram of the crimping member and the cable therein.

[0043] Figure 4 is provided by some embodiments of the present application Figure 1Schematic side view structure of the medium crimping part;

[0044] Figure 5 Schematic structure of the first crimping part provided by some embodiments of the present application;

[0045] Figure 6 Schematic side view structure of the connection terminal provided by some embodiments of the present application. Detailed implementation manners

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some, rather than all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0047] The present application provides a crimping part. Please refer to Figures 1 to 3 , Figure 1 which is a schematic structure diagram of the crimping part provided by some embodiments of the present application, Figure 2 which is a schematic structure diagram of the cable placed on the crimping part provided by some embodiments of the present application, Figure 3 which is provided by some embodiments of the present application Figure 2 Schematic top view structure of the medium crimping part and the cable.

[0048] The crimping part 100 is used to crimp the cable 10. The cable 10 includes a conductive wire 11 and an insulating layer 12 wrapping the conductive wire 11. The insulating layer 12 includes a first insulating part 121 and a second insulating part 122 arranged at intervals along the extension direction X of the conductive wire 11, and part of the conductive wire 11 is exposed between the first insulating part 121 and the second insulating part 122. The crimping part 100 includes a first crimping part 101, a second crimping part 102 and a third crimping part 103. The first crimping part 101 is used to crimp the first insulating part 121, the second crimping part 102 is used to crimp the exposed part of the conductive wire 11, and the third crimping part 103 is used to crimp the second insulating part 122. In the embodiments of the present application, electrical connection can be achieved after the exposed part of the conductive wire 11 is crimped with the second crimping part 102. By arranging the first crimping part 101 and the third crimping part 103 to crimp the first insulating part 121 and the second insulating part 122 of the cable 10 respectively, the exposed ends of the conductive wire 11 can be sealed by the first insulating part 121 and the second insulating part 122, thereby reducing corrosion and without the need to add additional parts.

[0049] It can be understood that the exposed portion of the conductive wire 11 can be referred to as the connection portion 13. After the first crimping portion 101 crimps the first insulating portion 121, one end of the connection portion 13 can be sealed. After the third crimping portion 103 crimps the second insulating portion 122, the other end of the connection portion 13 can be sealed. Therefore, the connection portion 13 is in a relatively sealed environment, thereby preventing moisture from entering the contact interface between the end of the connection portion 13 and the crimping member 100, slowing down the electrochemical corrosion, increasing the service life, and improving the performance. In addition, since the insulating layer 12 is elastic, after crimping, the first insulating portion 121 can fill the gap of the first crimping portion 101, and the second insulating portion 122 can fill the gap of the third crimping portion 103, so that both ends of the connection portion 13 are sealed, thereby reducing the corrosion of the conductive wire 11.

[0050] In some embodiments, the first crimping portion 101, the second crimping portion 102, and the third crimping portion 103 are spaced apart, so that the three crimping portions can be crimped separately to achieve different crimping amounts, thereby meeting different mechanical property requirements.

[0051] In some embodiments, the first crimping portion 101, the second crimping portion 102, and the third crimping portion 103 can all be arranged in a V shape, and the angles of the V-shaped openings of the three can be equal. The bottoms of the first crimping portion 101, the second crimping portion 102, and the third crimping portion 103 are connected to form a common connection portion 104. The cable 10 can be placed on the common connection portion 104 and located within the V-shaped crimping portion. Among them, the first insulating portion 121 of the cable 10 is placed corresponding to the first crimping portion 101, the connection portion 13 is placed corresponding to the second crimping portion 102, and the second insulating portion 122 is placed corresponding to the third crimping portion 103.

[0052] During the crimping process, the crimping die also has a V-shaped opening. The crimping die moves relative to the V-shaped first crimping portion 101, causing the two end portions of the V-shaped first crimping portion 101 to curl towards the direction of the cable 10 (inward), so that the first crimping portion 101 can wrap the first insulating portion 121 and cause the first insulating portion 121 to deform. Similarly, the second crimping portion 102 can also wrap the connection portion 13, and the third crimping portion 103 can wrap the second insulating portion 122.

[0053] In some embodiments, the first insulating portion 121 includes a first end 1211 away from the second crimping portion 102 and a second end 1212 close to the second crimping portion 102, and the second end 1212 at least extends to the second crimping portion 102.

[0054] As Figure 3As shown, when the second end 1212 just extends to the edge of the second crimping portion 102, that is, when the distance W1 along the extension direction X between the second end 1212 and the second crimping portion 102 is equal to 0, it can ensure that the connecting portion 13 is not exposed to the air after crimping, so as to increase the sealing performance. When the second end 1212 extends beyond the edge of the second crimping portion 102, that is, when the distance W1 along the extension direction X between the second end 1212 and the second crimping portion 102 is greater than 0, the second crimping portion 102 can not only crimp the exposed conductive wire 11, but also crimp part of the first insulating portion 121, thereby further improving the sealing effect.

[0055] In some embodiments, the first end 1211 of the first insulating portion 121 extends beyond the first crimping portion 101, so that a part of the first insulating portion 121 can be reserved at the end of the first crimping portion 101, and the end of the cable 10 is sealed by using the first insulating portion 121 at the end, improving the sealing effect of the end.

[0056] In some embodiments, the second insulating portion 122 extends at least from the third crimping portion 103 to the second crimping portion 102. The second insulating portion 122 may include a third end 1221 close to the first insulating portion 121 and a fourth end 1222 far from the first insulating portion 121. That is to say, the distance W2 between the third end 1221 of the second insulating portion 122 and the second crimping portion 102 along the extension direction X is greater than or equal to 0.

[0057] When the distance W2 between the third end 1221 and the second crimping portion 102 is equal to 0, the second insulating portion 122 just extends to the edge of the second crimping portion 102, which can ensure that the connecting portion 13 is not exposed to the air after crimping, so as to increase the sealing performance; when the distance W2 between the third end 1221 and the second crimping portion 102 is greater than 0, the second crimping portion 102 can not only crimp the exposed conductive wire 11, but also crimp part of the second insulating portion 122, thereby further improving the sealing effect.

[0058] For example, as Figure 3 shown in the placement position relationship between the cable 10 and the crimping member 100, the first crimping portion 101 crimps the first insulating portion 121, the second crimping portion 102 crimps the first insulating portion 121 and the second insulating portion 122, and the third crimping portion 103 crimps the second insulating portion 122.

[0059] In some embodiments, the first insulating portion 121 includes a first sub-insulating portion 1210 and a second sub-insulating portion 1220 which are connected to each other (separated by a dashed line in the figure), and the first sub-insulating portion 1210 is located on a side of the second sub-insulating portion 1220 away from the second insulating portion 122. The conductive wire 11 can extend from an end of the second sub-insulating portion 1220 close to the first sub-insulating portion 1210 to an end of the second insulating portion 122 away from the first sub-insulating portion 1210, that is, extend all the way to the right from the dashed line. That is to say, the end of the cable 10 (corresponding to the position of the first sub-insulating portion 1210) may not be provided with the conductive wire 11, so that the conductive wire 11 can be sealed inside the second sub-insulating portion 1220 after crimping, thereby increasing the sealing effect.

[0060] In some embodiments, the first crimping portion 101 includes a first sub-crimping portion 1011 and a second sub-crimping portion 1012 which are connected to each other, and the first sub-crimping portion 1011 is located on a side of the second sub-crimping portion 1012 away from the second crimping portion 102. The first sub-crimping portion 1011 can be used to crimp the first sub-insulating portion 1210, and the second sub-crimping portion 1012 can be used to crimp the second sub-insulating portion 1220. In this way, the first sub-crimping portion 1011 can be used to compact the first sub-insulating portion 1210, and the second sub-crimping portion 1012 can be used to crimp the second sub-insulating portion 1220 having the conductive wire 11 inside.

[0061] In some embodiments, a first protrusion structure 1013 is provided on a side of the first crimping portion 101 close to the cable 10, a second protrusion structure 1021 is provided on a side of the second crimping portion 102 close to the cable 10, and a third protrusion structure 1031 is provided on a side of the third crimping portion 103 close to the cable 10. Among them, the first protrusion structure 1013 and the third protrusion structure 1031 can be used to crimp the first insulating portion 121 and the second insulating portion 122 respectively. The protrusion structure can be pressed into the insulating portion, thereby improving the stability of the crimping and enabling the crimping member 100 to have better crimping holding force on the cable 10. And the second protrusion structure 1021 can be used to pierce the oxide layer on the surface of the connecting portion 13 to achieve better connection between the second crimping portion 102 and the metal in the connecting portion 13.

[0062] The protrusion structure can be an inverted triangle, a circle or a square, or other shapes similar to barbs.

[0063] The first convex structure 1013 can be located on a part of the first crimping portion 101 close to the second crimping portion 102, for example, on a side of the second sub-crimping portion 1012 close to the cable 10. Therefore, the second sub-crimping portion 1012 having the first convex structure 1013 can provide a holding force for the second sub-insulating portion 1220, and the first sub-crimping portion 1011 without the first convex structure 1013 can provide better crimping tightness for the end portion.

[0064] The third convex structure 1031 can be located on a part of the third crimping portion 103 close to the second crimping portion 102. Therefore, a part of the third crimping portion 103 having the third convex structure 1031 can provide a holding force for the second insulating portion 122, and another part of the third crimping portion 103 without the third convex structure 1031 can provide better crimping tightness for the other end portion.

[0065] In some embodiments, as Figure 1 shown, the depth of the protrusion of the second convex structure 1021 is greater than the depth of the protrusion of the first convex structure 1013, and the depth of the protrusion of the second convex structure 1021 is greater than or equal to the depth of the protrusion of the third convex structure 1031. Herein, the greater the "depth" is, the greater the depth that the convex structure is pressed into the cable 10 is. Therefore, the depth of the second convex structure 1021 is the largest, which can ensure that the second convex structure 1021 pierces the oxide layer of the connection portion 13 and is connected to the metal inside the oxide layer, achieving better electrical connection. While the depths of the first convex structure 1013 and the third convex structure 1031 are smaller, which can ensure that the first insulating portion 121 and the second insulating portion 122 are not pressed through and provide better holding force.

[0066] In some embodiments, the density of the second convex structure 1021 is greater than the density of the first convex structure 1013, and the density of the second convex structure 1021 is greater than the density of the third convex structure 1031. This can increase the contact area between the second convex structure 1021 and the metal in the connection portion 13, thereby achieving better electrical connection.

[0067] Please refer to Figure 4 , Figure 4 which Figure 1 is a schematic side view structure diagram of the middle crimping member provided by some embodiments of the present application.

[0068] In some embodiments, the dimension a of the first sub-crimping portion 1011 in the first direction is greater than the dimension b of the second sub-crimping portion 1012 in the first direction, and the first direction Y is perpendicular to the extending direction X. That is to say, when crimping, the material of the first sub-crimping portion 1011 is more than that of the second sub-crimping portion 1012. Therefore, the compression amount of the first sub-crimping portion 1011 is larger than that of the second sub-crimping portion 1012. As a result, the first sub-crimping portion 1011 can crimp the first sub-insulating portion 1210 more tightly, achieving a better sealing effect. And the second sub-crimping portion 1012 with the conductive wire 11 inside has a smaller compression amount, which can have a better holding force on the second sub-insulating portion 1220, realizing stable fixation of the cable 10.

[0069] Please refer to Figure 5 , Figure 5 which is a schematic structural diagram of the first crimping portion provided by some embodiments of the present application. Figure 5 It shows a side view of the first crimping portion 101 seen from the direction of the first sub-crimping portion 1011. Therefore, Figure 5 the second sub-crimping portion 1012 cannot be seen in

[0070] In some embodiments, the first sub-crimping portion 1011 has a first end 1011A and a second end 1011B which are oppositely arranged. The first end 1011A and the second end 1011B are respectively located on both sides of the cable 10. The first end 1011A bends towards the direction close to the second end 1011B, and the second end 1011B bends towards the direction close to the first end 1011A. That is to say, both the first end 1011A and the second end 1011B bend towards the direction close to the cable 10. In this way, during the crimping process, the first sub-crimping portion 1011 is more likely to be deformed and curled, and can crimp the first sub-insulating portion 1210 more tightly, increasing the sealing property.

[0071] In some embodiments, the first end 1011A can gradually taper along the bending direction, and the second end 1011B can gradually taper along the bending direction. This is more conducive to the deformation and bending of the first sub-crimping portion 1011.

[0072] Continue to refer to Figure 4 , in some embodiments, the second crimping portion 102 includes a third sub-crimping portion 1020, a fourth sub-crimping portion 1030, and a fifth sub-crimping portion 1040 which are arranged in sequence along the extending direction X. The dimension c of the fourth sub-crimping portion 1030 in the first direction Y is greater than the dimension d of the third sub-crimping portion 1020 in the first direction Y. The first direction Y is perpendicular to the extending direction X, and the dimension c of the fourth sub-crimping portion 1030 in the first direction Y is greater than the dimension e of the fifth sub-crimping portion 1040 in the first direction Y.

[0073] Therefore, the middle of the second crimping portion 102 is high and both sides are low. The compression amount of the higher fourth sub-crimping portion 1030 is greater than the compression amounts of the third sub-crimping portion 1020 and the fifth sub-crimping portion 1040. Thus, the fourth sub-crimping portion 1030 can crimp the connecting portion 13 of the conductive wire 11 more tightly to enhance the electrical connection between the connecting portion 13 and the fourth sub-crimping portion 1030.

[0074] In some embodiments, as Figure 3 shown, the axis of symmetry (in the Z direction) of the connecting portion 13 can coincide with the axis of symmetry (in the Z direction) of the fourth sub-crimping portion 1030, so that it can be ensured that the fourth sub-crimping portion 1030 can only cover the connecting portion 13 to ensure stable electrical contact.

[0075] In some embodiments, reference may be made to Figure 2 , the fourth sub-crimping portion 1030 has a third end portion 1030A and a fourth end portion 1030B which are oppositely arranged. The third end portion 1030A bends towards the direction close to the fourth end portion 1030B, and the fourth end portion 1030B bends towards the direction close to the third end portion 1030A. That is to say, both the third end portion 1030A and the fourth end portion 1030B bend towards the direction close to the cable 10. In this way, during the crimping process, the fourth sub-crimping portion 1030 is more likely to be deformed and bent, and can crimp the connecting portion 13 more tightly to enhance the electrical connection performance.

[0076] The third sub-crimping portion 1020 has a fifth end portion 1020A and a sixth end portion 1020B which are oppositely arranged. The fifth end portion 1020A and the sixth end portion 1020B are respectively located on both sides of the cable. The fifth end portion 1020A bends towards the side away from the sixth end portion 1020B, and the sixth end portion 1020B bends towards the side away from the fifth end portion 1020A. The fifth sub-crimping portion 1040 has a seventh end portion 1040A and an eighth end portion 1040B which are oppositely arranged. The seventh end portion 1040A and the eighth end portion 1040B are respectively located on both sides of the cable. The seventh end portion 1040A bends towards the side away from the eighth end portion 1040B, and the eighth end portion 1040B bends towards the side away from the seventh end portion 1040A.

[0077] Therefore, the fifth end portion 1020A, the sixth end portion 1020B, the seventh end portion 1040A and the eighth end portion 1040B all bend away from the cable 10 (outward). In this way, during crimping, the third sub-crimping portion 1020 and the fifth sub-crimping portion 1040 are not crimped as tightly as the fourth sub-crimping portion 1030, and the partial first insulating portion 121 and the partial second insulating portion 122 extending into the second crimping portion 102 can be reduced from being crushed, providing better holding force.

[0078] According to a second aspect of the present application, a connection terminal is provided. Refer to Figure 6 , Figure 6 , which is a schematic side view structure diagram of the connection terminal provided by some embodiments of the present application.

[0079] The connection terminal 200 includes a wire portion 10a and a crimping portion 20. The wire portion 10a can be formed by crimping the cable provided by any of the above embodiments, and the crimping portion 20 can be formed by crimping the cable with the crimping member provided by any of the above embodiments. The structure of the crimping member 100 can be referred to Figures 1 to 5 , and one structure after crimping is as shown in Figure 6 .

[0080] It can be referred to Figure 2 . It is necessary to first strip the wire of a complete cable 10. For example, separate the insulating layer 12 into two insulating portions from the left end (in the illustrated direction) of the second insulating portion 122, and then move the first insulating portion 121 to the left so that the end of the first insulating portion 121 exceeds the end of the cable 10. Specifically, the relative positions of the first insulating portion 121 and the second insulating portion 122 with respect to the crimping member 100 can refer to the description in the above text, that is, the position where the cable 10 is placed after stripping needs to meet the relevant descriptions in the above embodiments.

[0081] After the cable 10 is placed at the position as shown in Figure 2 , the exposed wire (i.e., the connecting portion 13) has no open structure after crimping and is placed in a relatively sealed space, which can slow down the electrochemical corrosion, thereby increasing the service life and improving the performance. A crimping die can be used for the crimping operation. The crimping die can include three crimping modules, which respectively crimp the three crimping portions 20 to form a three-stage crimping.

[0082] As shown in Figure 6 , only the first insulating portion 121a and the second insulating portion 122a are exposed outside after crimping. The crimping portion 20 includes a first crimping portion 101a, a second crimping portion 102a, and a third crimping portion 103a after being crimped.

[0083] In some embodiments, the minimum dimension H1 of the first crimping portion 101a along the first direction Y is less than or equal to the minimum dimension H2 of the second crimping portion 102a along the first direction Y. The first direction Y is perpendicular to the extending direction X of the cable 10. And the minimum dimension H2 of the second crimping portion 102a along the first direction Y is less than or equal to the minimum dimension H3 of the third crimping portion 103a along the first direction Y. Wherein, the minimum dimension H1 of the first crimping portion 101a along the first direction Y can be used to represent the compression amount of the first crimping portion 101a. The smaller this dimension is, the greater the compression amount. Therefore, the compression amount of the first crimping portion 101a can be greater than or equal to the compression amount of the second crimping portion 102a, and the compression amount of the second crimping portion 102a can be greater than or equal to the compression amount of the third crimping portion 103a.

[0084] In some embodiments, the compression amount of the first crimping portion 101a can be greater than the compression amount of the second crimping portion 102a, which can enable the first insulating portion 121a to achieve better crimping sealing performance; the compression amount of the second crimping portion 102a can be greater than the compression amount of the third crimping portion 103a, which can achieve better electrical connection between the second crimping portion 102a and the connecting portion 13, and the third crimping portion 103a can achieve better holding force and reduce the risk of the insulating layer 12 being crushed.

[0085] The connection terminal 200 may further include a plugging portion 30. The plugging portion 30 is connected to the first crimping portion 101a. Therefore, one end of the wire portion 10a can be electrically connected to the plugging portion 30. The other end of the wire portion 10a can also be connected to another plugging portion 30, thereby forming a connector.

[0086] According to the third aspect of the present application, a connector is provided. The connector includes the connection terminal provided in any of the above embodiments. The connector has all the beneficial effects of the above connection terminal, and details are not described herein again in the present application.

[0087] According to the fourth aspect of the present application, a vehicle is provided. The vehicle includes the connector provided in any of the above embodiments. The vehicle has all the beneficial effects of the above connector, and details are not described herein again in the present application.

[0088] The vehicle may be a fuel vehicle, a plug-in hybrid vehicle or a new energy vehicle, etc. The present application does not make specific limitations thereto.

[0089] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0090] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0091] Among the embodiments, implementation manners and related technical features of the present application, they can be combined and replaced with each other without conflict.

[0092] The above are only the preferred embodiments of the present application and do not impose any form of limitation on the present application. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A crimping part for crimping a cable, characterized in that, The cable includes a conductive wire and an insulating layer wrapping the conductive wire. The insulating layer includes a first insulating portion and a second insulating portion spaced along the extending direction of the conductive wire, and a part of the conductive wire is exposed between the first insulating portion and the second insulating portion. The crimping member includes a first crimping portion, a second crimping portion, and a third crimping portion. The first crimping portion is used to crimp the first insulating portion, the second crimping portion is used to crimp the exposed part of the conductive wire, and the third crimping portion is used to crimp the second insulating portion.

2. The crimping part according to claim 1, wherein The first crimping portion, the second crimping portion, and the third crimping portion are spaced apart.

3. The crimping part according to claim 1, characterized in that, The first insulating portion includes a first end away from the second crimping portion and a second end close to the second crimping portion, and the second end extends at least to the second crimping portion.

4. The crimping part according to claim 3, characterized in that, The first end extends beyond the first crimping portion.

5. The crimping member according to claim 1, characterized in that, The second insulating portion extends at least from the third crimping portion to the second crimping portion.

6. The crimping member according to claim 1, wherein The first insulating portion includes a first sub-insulating portion and a second sub-insulating portion connected to each other. The first sub-insulating portion is located on the side of the second sub-insulating portion away from the second insulating portion. The conductive wire extends from one end of the second sub-insulating portion close to the first sub-insulating portion to one end of the second insulating portion away from the first sub-insulating portion.

7. The crimping member according to claim 6, wherein The first crimping portion includes a first sub-crimping portion and a second sub-crimping portion connected to each other. The first sub-crimping portion is located on the side of the second sub-crimping portion away from the second crimping portion. The first sub-crimping portion is used to crimp the first sub-insulating portion, and the second sub-crimping portion is used to crimp the second sub-insulating portion.

8. The crimping part according to claim 7, wherein The dimension of the first sub-crimping portion in a first direction is greater than the dimension of the second sub-crimping portion in the first direction. The first direction is perpendicular to the extending direction.

9. The crimping part according to claim 7, characterized in that, The first sub-crimping portion has a first end portion and a second end portion arranged oppositely. The first end portion and the second end portion are respectively located on both sides of the cable. The first end portion bends towards the second end portion, and the second end portion bends towards the first end portion.

10. The crimping member according to claim 1, characterized in that, The second crimping portion includes a third sub-crimping portion, a fourth sub-crimping portion, and a fifth sub-crimping portion arranged in sequence along the extending direction. The dimension of the fourth sub-crimping portion in a first direction is greater than the dimension of the third sub-crimping portion in the first direction. The first direction is perpendicular to the extending direction. The dimension of the fourth sub-crimping portion in the first direction is greater than the dimension of the fifth sub-crimping portion in the first direction.

11. The crimping member according to claim 10, wherein, The fourth sub-crimping portion has a third end portion and a fourth end portion arranged oppositely. The third end portion bends towards the fourth end portion, and the fourth end portion bends towards the third end portion.

12. The crimping member according to claim 10, wherein, The third sub-crimping portion has a fifth end portion and a sixth end portion arranged oppositely. The fifth end portion and the sixth end portion are respectively located on both sides of the cable. The fifth end portion bends towards the side away from the sixth end portion, and the sixth end portion bends towards the side away from the fifth end portion. The fifth crimping portion has a seventh end portion and an eighth end portion which are oppositely arranged. The seventh end portion and the eighth end portion are respectively located on two sides of the cable. The seventh end portion is bent towards a side away from the eighth end portion, and the eighth end portion is bent towards a direction away from the seventh end portion.

13. The crimping part according to claim 1, characterized in that, One side of the first crimping portion close to the cable has a first protruding structure, one side of the second crimping portion close to the cable has a second protruding structure, and one side of the third crimping portion close to the cable has a third protruding structure.

14. The crimping member according to claim 13, wherein, The first protruding structure is located on a part of the first crimping portion close to the second crimping portion.

15. The crimping part according to claim 13, wherein, The depth of the protrusion of the second protruding structure is greater than the depth of the protrusion of the first protruding structure, and the depth of the protrusion of the second protruding structure is greater than or equal to the depth of the protrusion of the third protruding structure.

16. The crimping part according to claim 13, wherein The density of the second protruding structure is greater than the density of the first protruding structure, and the density of the second protruding structure is greater than the density of the third protruding structure.

17. A connection terminal, characterized in that, Comprising: A wire portion crimped from the cable according to any one of claims 1 to 16; And A crimping portion formed by crimping the cable with the crimping member according to any one of claims 1 to 16.

18. The connection terminal according to claim 17, wherein The crimping portion includes the first crimping portion, the second crimping portion and the third crimping portion; The minimum dimension of the first crimping portion along a first direction is less than or equal to the minimum dimension of the second crimping portion along the first direction, the minimum dimension of the second crimping portion along the first direction is less than or equal to the minimum dimension of the third crimping portion along the first direction, and the first direction is perpendicular to the extending direction of the cable.

19. The connection terminal according to claim 17, characterized in that, It further includes a plugging portion, and the plugging portion is connected to the first crimping portion.

20. A connector, characterized in that, Including the connection terminal according to any one of claims 17 to 19.

21. A vehicle, characterized in that, Including the connector according to claim 20.

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