CN219643144U - Terminal, electric connector, wire harness and vehicle - Google Patents

Abstract

The utility model discloses a terminal, an electric connector, a wire harness and a vehicle, wherein the terminal comprises an elastic insertion and matching part, an insertion and matching end and a connecting end, wherein the insertion and matching end and the connecting end are respectively formed by extending from two ends of the elastic insertion and matching part, the elastic insertion and matching part comprises a pair of elastic arms which are formed by extending in an arc shape, a hollow area is arranged between the pair of elastic arms and close to the insertion and matching end, a first elastic sheet and a second elastic sheet are arranged between the pair of elastic arms so as to provide stress support for the pair of elastic arms, the first elastic sheet is positioned in a stress area between the pair of elastic arms, and the second elastic sheet is arranged in a connecting area between the connecting end and the stress area. According to the terminal provided by the utility model, the insertion force of the terminal can be reduced, the contact area and the holding force of the terminal and the opposite end are increased, and the stability and the reliability of the electric connection of the terminal are ensured.

Description

Terminal, electric connector, wire harness and vehicle

Technical Field

The utility model relates to the technical field of electric connectors, in particular to a terminal, an electric connector, a wire harness and a vehicle.

Background

Currently, electronic systems tend to be miniaturized in design, and their data operating rates are also increasingly demanding. To this end, in some techniques, the above-mentioned needs are generally met by reducing the size of the mating holes on the printed circuit board; at this time, since the size of the mating hole is small (for example, the diameter of the mating hole is smaller than approximately 0.75 mm), the arrangement density of the mating hole is facilitated to be increased, and the interference of the mating hole with the adjacent electrical via hole is small, so that the smaller-sized mating hole can realize a higher data transfer rate.

Based on the above arrangement, the size of the elastic arm of the latch pin matched with the mating hole is also reduced, at this time, the elastic arm may be excessively compressed when being inserted into the mating hole, which hinders the reliable electrical connection between the latch pin and the mating hole, and at the same time, the elastic arm is excessively compressed, which reduces the rebound resilience of the elastic arm, so that the elastic arm cannot be fully contacted with the conductive material on the inner wall of the mating hole, and the electrical contact between the latch pin and the mating hole is unstable; that is, only a small portion of the elastic arm can contact the inner wall of the opposite end, and in particular, in vibration testing, the electrical connector is prone to signal breakage.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the terminal which can reduce the insertion force of the terminal, increase the contact area and the holding force of the terminal and the opposite end, and ensure the stability and the reliability of the electric connection of the terminal.

The utility model also provides an electric connector with the terminal.

The utility model also provides a wire harness with the electric connector.

The utility model further provides a vehicle with the wire harness.

According to an embodiment of the first aspect of the present utility model, a terminal includes an elastic insertion portion, an insertion end and a connection end, wherein the insertion end and the connection end are formed by extending from two ends of the elastic insertion portion, the elastic insertion portion includes a pair of elastic arms formed by extending in an arc shape, and a hollow area is arranged between the pair of elastic arms and close to the insertion end; a first elastic sheet and a second elastic sheet are arranged between the pair of elastic arms so as to provide stress support for the pair of elastic arms, the first elastic sheet is positioned in a stress area between the pair of elastic arms, and the second elastic sheet is arranged in a connection area between the connection end and the stress area.

According to the terminal provided by the embodiment of the utility model, the first elastic piece is arranged in the stress area, the second elastic piece is arranged in the connecting area, and when the elastic plug-in matching part is matched with the opposite matching end, the first elastic piece and the second elastic piece can apply acting force to the elastic arm so as to enlarge the contact area between the elastic plug-in matching part and the opposite matching end and enlarge the holding force between the elastic plug-in matching part and the opposite matching end, so that the elastic plug-in matching part and the opposite matching end are stably matched, the effect of 'small plug-in force and large plug-out force' is further achieved, the reliable and stable electric connection between the terminal and the opposite matching end is realized, the stress of the connecting end is not increased in a transitional way, the terminal is ensured to be reliably used, the cracking of the terminal at the connecting end is avoided, and the like.

In some embodiments, the stress region is located between the hollow region and the connection region in a length direction of the elastic plug-in portion, and a sum of a length of the first elastic piece, a distance between the first elastic piece and the plug-in end, and a length of the second elastic piece is equal to a distance between the plug-in end and the connection end.

In some embodiments, the elastic plug-in portion is adapted to be plugged into a plug-in hole of the circuit board, a portion of the elastic plug-in portion corresponding to the stress region is a stress portion, a diameter of a cross-sectional circumcircle of the stress portion is greater than or equal to a diameter of the plug-in hole, and a cross-section of the stress portion is perpendicular to a length direction of the elastic plug-in portion.

In some embodiments, two ends of the first elastic piece are respectively connected to inner walls of the pair of elastic arms, two ends of the second elastic piece are respectively connected to inner walls of the pair of elastic arms in a length direction of the elastic insertion portion, and a distance between the first elastic piece and the insertion end is equal to a length of the second elastic piece.

In some embodiments, at least one of the first elastic sheet and the second elastic sheet is formed as a flat plate structure.

In some embodiments, at least one of the first elastic sheet and the second elastic sheet is formed as a curved plate structure.

In some embodiments, the curved panel structure includes a first plate and a second plate connected in a bent manner, the first plate being connected to the first resilient arm and the second plate being connected to the second resilient arm.

In some embodiments, the first elastic piece and the second elastic piece are sequentially arranged along the length direction of the elastic insertion portion, and the first elastic piece and the second elastic piece protrude toward two sides of the thickness of the elastic insertion portion respectively.

In some embodiments, each of the elastic arms has an outer side wall facing away from the other elastic arm, the outer side walls being connected to both side walls of the elastic arm in the thickness direction of the elastic plug-in portion, respectively, by rounded transitions.

In some embodiments, the terminal further comprises: and the limiting part is in transition connection with the connecting end through a round angle.

An electrical connector according to an embodiment of the second aspect of the present utility model comprises a terminal according to an embodiment of the first aspect of the present utility model described above.

According to the electric connector provided by the embodiment of the utility model, the terminal is adopted, so that the electric connection stability of the electric connector can be ensured.

A wire harness according to an embodiment of a third aspect of the present utility model includes the electrical connector according to the above-described embodiment of the second aspect of the present utility model.

According to the wire harness provided by the embodiment of the utility model, the electrical connector can ensure reliable connection of the wire harness.

A vehicle according to an embodiment of a fourth aspect of the present utility model includes a wire harness according to the embodiment of the above-described third aspect of the present utility model.

According to the vehicle provided by the embodiment of the utility model, the wire harness is adopted, so that the reliable electrical connection between the components is ensured, and the driving safety of the vehicle is ensured.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a terminal according to one embodiment of the utility model;

FIG. 2 is another schematic view of the terminal shown in FIG. 1;

FIG. 3 is a cross-sectional view of the terminal of FIG. 2 taken along line A-A;

FIG. 4 is a cross-sectional view of the terminal of FIG. 2 taken along line B-B;

FIG. 5 is yet another schematic view of the terminal shown in FIG. 1;

fig. 6 is a further schematic view of the terminal shown in fig. 1.

Reference numerals:

a terminal 100,

An elastic insertion portion 1, a hollow area A1, a connection area A2, a stress area B, an insertion end 1a, a connection end 1B, a deformable through hole 1c, a second side wall R2, a fourth side wall R4,

An elastic arm 11, an outer side wall 11b, a first elastic arm 111, a second elastic arm 112,

Elastic sheet 12, elastic assembly 12A, first elastic sheet 12A, second elastic sheet 12b, first edge 12c, second edge 12d, first plate 121, second plate 122, first side wall R1, third side wall R3,

A limit part 2 and a guide part 3.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

The following disclosure provides many different embodiments, or examples, for implementing different structures of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the applicability of other processes and/or the use of other materials.

Next, with reference to the drawings, a terminal 100 according to an embodiment of the present utility model is described.

As shown in fig. 1-2 and fig. 5-6, the terminal 100 includes an elastic insertion portion 1, an insertion end 1a and a connection end 1b respectively extending from two ends of the elastic insertion portion 1, and the insertion end 1a is adapted to be inserted into the opposite end. The elastic insertion portion 1 includes a pair of elastic arms 11 formed to extend in an arc shape.

For example, the pair of elastic arms 11 includes a first elastic arm 111 and a second elastic arm 112, one end of the length of the first elastic arm 111 is connected with one end of the length of the second elastic arm 112 to form the mating end 1a, the other end of the length of the first elastic arm 111 is connected with the other end of the length of the second elastic arm 112 to form the connecting end 1b, a compressible space may be formed between the first elastic arm 111 and the second elastic arm 112, and the first elastic arm 111 and the second elastic arm 112 may be deformed by an external force such that a maximum distance between the first elastic arm 111 and the second elastic arm 112 corresponding to the compressible space is changed such that the compressible space is deformed, and the compressible space is located between the mating end 1a and the connecting end 1 b. For example, the interval between the first elastic arm 111 and the second elastic arm 112 corresponding to the portion of the compressible space may be increased and then decreased in the direction of the mating end 1a toward the connection end 1b, and then the width of the elastic mating portion 1 may be increased and then decreased in the direction of the mating end 1a toward the connection end 1b, so that the elastic mating portion 1 has a good deformability, and the first elastic arm 111 and the second elastic arm 112 define a "fish-eye shape".

The direction along the mating end 1a toward the connection end 1b is understood to be the longitudinal direction of the elastic mating portion 1. For example, in the example of fig. 1 and 2, the front end of the first elastic arm 111 is connected to the front end of the second elastic arm 112 to form the mating end 1a, the rear end of the first elastic arm 112 is connected to the rear end of the second elastic arm 112 to form the connecting end 1b, and the interval between the two elastic arms 11 increases and decreases in the left-right direction in the direction of the mating end 1a toward the connecting end 1 b.

When the elastic inserting and matching part 1 is inserted and matched at the opposite end (for example, an inserting and matching hole on a circuit board), the first elastic arm 111 and the second elastic arm 112 deform towards the direction approaching to each other, so that the compressible space is compressively deformed, the maximum distance between the parts of the first elastic arm 111 and the second elastic arm 112 corresponding to the compressible space is reduced, so that the inserting force of the terminal 100 is reduced, the elastic inserting and matching part 1 is easier to insert and match at the opposite end, meanwhile, the elastic inserting and matching part 1 has elastic restoring force, after the elastic inserting and matching part 1 is inserted and matched at the opposite end, the first elastic arm 111 and the second elastic arm 112 have the tendency of restoring the initial shape to increase the interference quantity of each elastic arm 11 and the opposite end, thereby increasing the holding force of the elastic inserting and matching part 1 stably matching at the opposite end, limiting the elastic inserting and matching part 1 from coming out of the opposite end, ensuring stable and effective electric contact of the elastic contact part 1 and the opposite end, and further realizing reliable and stable electric connection of the terminal 100 and the opposite end.

A hollow area A1 is provided between the pair of elastic arms 11 near the mating end 1a, and a connection area A2 is provided between the pair of elastic arms 11 near the connection end 1b, and a first elastic piece 12a and a second elastic piece 12b are provided between the pair of elastic arms 11 to provide stress support to the pair of elastic arms 11; that is, a plurality of elastic pieces 12 are provided between the pair of elastic arms 11, and the plurality of elastic pieces 12 includes a first elastic piece 12a and a second elastic piece 12b.

Wherein the first elastic piece 12a is located at a stress region B between the pair of elastic arms 11, the second elastic piece 12B is disposed at a connection region A2 between the connection end 1B and the stress region B, the first elastic piece 12a and the second elastic piece 12B provide stress support to the first elastic arm 111 and the second elastic arm 112, the first elastic piece 12a and the second elastic piece 12B are respectively connected such that when the elastic fitting portion 1 is inserted into the mating end, the first elastic arm 111 and the second elastic arm 112 are subjected to compression deformation of the mating end, a distance between the first elastic arm 111 and the second elastic arm 112 is reduced, the first elastic piece 12a and the second elastic piece 12B can apply a force toward the first elastic arm 111 and the second elastic arm 112 such that each elastic arm 11 of the first elastic arm 111 and the second elastic arm 112 has a tendency to separate toward the other elastic arm 11, however, since both ends of the length of the first elastic arm 111 and both ends of the length of the second elastic arm 112 are respectively connected, the first elastic piece 12a and the second elastic piece 12B may cause each of the first elastic arm 111 and the second elastic arm 112 to have a tendency to bulge in a direction away from the other elastic arm 11, respectively, for the first elastic arm 111 and the second elastic arm 112, to increase a contact area of each elastic arm 11 with the counter end, to increase a pressing force between each elastic arm 11 and the counter end, to increase an interference amount between each elastic arm 11 and the counter end, to increase a contact area of the elastic plug-in portion 1 with the counter end, and to increase an elastic restoring force of the elastic plug-in portion 1, to increase a holding force between the two elastic arms 11 (the first elastic arm 111 and the second elastic arm 112) and the counter end, to increase an interference amount of the terminals 100 and the counter end, to restrict the elastic plug-in portion 1 from coming out of the terminals 100, and further, the reliable and stable electrical connection between the terminal 100 and the mating terminal is ensured, and particularly, the situation that the electrical connector is broken due to the separation of the terminal 100 and the mating terminal in some vibration processes, such as vibration test, is effectively avoided.

The hollow area A1 can deform under the action of external force, so that the shape of the hollow area A1 changes, when the elastic insertion and matching part 1 is inserted and matched with the opposite end, the hollow area A1 is deformed under the action of the opposite end, the hollow area A1 is stressed and reduced, so that the insertion and matching end 1a is inserted into the opposite end more smoothly, and the hollow area A1 is stressed and deformed to reduce the insertion force of the elastic insertion and matching part 1 into the opposite end.

Further, the connection area A2 is provided with the second elastic piece 12b such that the elastic force of the portion of the elastic plug-and-play portion 1 corresponding to the connection area A2 is increased, and when the elastic plug-and-play portion 1 is inserted into the mating end, the first elastic arm 111 and the second elastic arm 112 corresponding to the connection area A2 have a tendency to be respectively moved away from each other to increase the contact area and the pressing force between the first elastic arm 111 and the second elastic arm 112 corresponding to the connection area A2 and the mating end, thereby increasing the interference amounts of the elastic plug-and-play portion 1 and the mating end corresponding to the connection area A2 to limit the coming-out of the mating end of the elastic plug-and-play portion 1, further improving the reliability and stability of the electrical connection of the terminal 100 and the mating end.

It can be seen that, since the hollow area A1 is disposed between the pair of elastic arms 11 and near the mating end 1a, in the stage of the elastic mating portion 1 being mated with the mating end, the first elastic piece 12a will not excessively affect the mating between the mating end 1a and the mating end, so as not to excessively increase the insertion force of the elastic mating portion 1, in addition, since the connection area A2 is disposed between the pair of elastic arms 11 and near the connection end 1B, when the mating between the elastic mating portion 1 and the mating end is completed, the connection area A2 is provided with the second elastic piece 12B, so as to increase the interference between the elastic mating portion 1 corresponding to the connection area A2 and the mating end, so as to limit the elastic mating portion 1 from being separated from the mating end, thereby improving the mating stability of the terminal 100 and the mating end, and simultaneously, in the length direction of the elastic mating portion 1, the first elastic piece 12a is convenient for being located in the stress area B of the elastic arm 11, which has the largest interference between the mating end and the elastic mating end, so as to effectively increase the contact area between the elastic mating portion 1 and the mating end, and the mating end is guaranteed to be more easily matched with the elastic mating end 1, and further guaranteeing that the mating is not to be mated with the elastic mating end 1.

According to the terminal 100 of the embodiment of the present utility model, by arranging the first elastic piece 12a in the stress area B and arranging the second elastic piece 12B in the connection area A2, when the elastic plug-in portion 1 is mated with the mating end, the first elastic piece 12a and the second elastic piece 12B can apply a force to the elastic arm 11, so as to increase the contact area between the elastic plug-in portion 1 and the mating end, increase the holding force between the elastic plug-in portion 1 and the mating end, ensure the stable mating of the elastic plug-in portion 1 and the mating end, further achieve the effects of "small insertion force and large extraction force", realize reliable and stable electrical connection of the terminal 100 and the mating end, and not excessively increase the stress of the connection end 1B, so as to ensure reliable use of the terminal 100, and be beneficial to avoid cracking of the terminal 100 at the connection end 1B.

Therefore, the elastic pieces 12 are respectively arranged in the stress area B and the connecting area A2, so that the non-rebound amount caused by excessive compression and/or long-term compression of the elastic plug-in part 1 can be effectively reduced, the contact area and the retention force between the elastic plug-in part 1 and the opposite end are increased, and the elastic plug-in part 1 and the opposite end form continuous and stable connection.

It will be appreciated that the number of first elastic sheets 12a of the stress region B is one or more, and the number of second elastic sheets 12B of the connection region A2 is one or more; in the length direction of the elastic plug-in portion 1, the length L1 of the stress region B may be greater than or equal to the total length occupied by the first elastic sheet 12a located in the stress region B, and the length L3 of the connection region A2 may be greater than or equal to the total length occupied by the second elastic sheet 12B located in the connection region A2.

Illustratively, the elastic assembly 12A formed by all the elastic sheets 12 has a part located in the stress area B between the pair of elastic arms 11 and another part connected to the connection end 1B and covering the connection area A2. It will be appreciated that a plurality of elastic sheets 12 are provided between a pair of elastic arms 11, all elastic sheets 12 constituting an elastic assembly 12A, and the arrangement of the elastic assembly 12A may include, but is not limited to, the following: 1. the stress area B is provided with at least one elastic sheet 12, the connecting area A2 is provided with at least one elastic sheet 12, and the stress area B and the connecting area A2 do not share the same elastic sheet 12; 2. the stress area B is provided with a plurality of elastic sheets 12, one part of the plurality of elastic sheets 12 is arranged in the stress area B, and the other part of the plurality of elastic sheets 12 is arranged in the connecting area A2; 3. the connection region A2 is provided with a plurality of elastic pieces 12, and one of the plurality of elastic pieces 12 is provided in the connection region A2 and the other is provided in the stress region B.

It is understood that the length occupied by all the elastic pieces 12 of the elastic assembly 12A in the length direction of the elastic plug-in portion 1 may be less than or equal to the sum of the lengths of the stress region B and the connection region A2 in the length direction of the elastic plug-in portion 1. For example, the length occupied by the elastic member 12A in the length direction of the elastic plug-in portion 1 is smaller than the sum of the lengths of the stress region B and the connection region A2 in the length direction of the elastic plug-in portion 1, the elastic pieces 12 of the elastic member 12A may be one or more, and if the elastic pieces 12 are plural and the plural elastic pieces 12 are sequentially arranged in the length direction of the elastic plug-in portion 1, the interval between the adjacent two elastic pieces 12 may be greater than or equal to 0; the length occupied by the elastic component 12A in the length direction of the elastic plug-in portion 1 is equal to the sum of the lengths of the stress area B and the connection area A2 in the length direction of the elastic plug-in portion 1, the number of the elastic pieces 12 may be one or more, and if the number of the elastic pieces 12 is plural and the plurality of the elastic pieces 12 are sequentially arranged in the length direction of the elastic plug-in portion 1, the interval between the adjacent two elastic pieces 12 may be greater than or equal to 0.

When the number of the elastic pieces 12 is plural, and the plurality of elastic pieces 12 are sequentially arranged along the length direction of the elastic plug-in portion 1, the length occupied by all the elastic pieces 12 in the length direction of the elastic plug-in portion 1 may be greater than or equal to the sum of the lengths of all the elastic pieces 12 in the length direction of the elastic plug-in portion 1.

In some embodiments, as shown in fig. 2, in the length direction of the elastic plug-in portion 1, the stress region B is located between the hollow region A1 and the connection region A2, and the sum of the length of the first elastic piece 12a, the distance between the first elastic piece 12a and the plug-in end 1a, and the length of the second elastic piece 12B is equal to the distance between the plug-in end 1a and the connection end 1B. It can be seen that the sum of the length of the stress area B, the length of the hollow area A1 and the length of the connection area A2 is equal to the distance between the mating end 1a and the connection end 1B.

In the length direction of the elastic plug-in portion 1, the length of the elastic plug-in portion 1 corresponding to the stress area B is L1, the length of the elastic plug-in portion 1 corresponding to the hollow area A1 is L2, the length of the elastic plug-in portion 1 corresponding to the connection area A2 is L3, and the distance between the plug-in end 1a and the connection end 1B is L, where l=l1+l2+l3.

It can be seen that, between the mating end 1a and the connecting end 1B, the hollow area A1 is removed, and the stress area B and the connecting area A2 are left, so that the lengths of the stress area B and the connecting area A2 in the length direction of the elastic mating portion 1 are increased, the arrangement areas of the first elastic sheet 12a and the second elastic sheet 12B are increased, and the mating stability of the elastic mating portion 1 and the mating end is further improved; meanwhile, in the process that the elastic inserting and matching part 1 is inserted and matched at the opposite end, the hollow area A1 positioned at the inserting and matching end 1a deforms to reduce the insertion force of the inserting and matching end 1a into the opposite end, so that the part of the elastic arm 11 corresponding to the stress area B can be conveniently inserted into the opposite end continuously, the part of the elastic arm 11 corresponding to the stress area B is deformed by the acting force of the opposite end to squeeze the first elastic piece 12a and the second elastic piece 12B to deform, the first elastic piece 12a and the second elastic piece 12B have the trend of restoring the initial shape to apply elastic force to the elastic arm 11 of the stress area B, the elastic arm 11 of the stress area B is enabled to deform sufficiently to be clung to the wall surface of the opposite end, the contact area and the extrusion force of the part of the elastic arm 11 corresponding to the stress area B and the opposite end are improved, and the interference quantity of the part of the elastic arm 11 corresponding to the stress area B and the opposite end is improved.

In the following, the longitudinal direction of the elastic insertion portion 1 is taken as the front-rear direction, the insertion end 1a is located at the front side of the connection end 1b, and two elastic pieces 12 are taken as examples, and those skilled in the art will readily understand that one, three, or more elastic pieces 12 are taken as examples.

As shown in fig. 1, the elastic component 12A includes two elastic pieces 12, and the two elastic pieces 12 are sequentially disposed along a front-back direction, the two elastic pieces 12 are a first elastic piece 12A and a second elastic piece 12b, a side wall of the compressible space corresponding to the mating end 1a is a first side wall R1, a side wall of one end of the first elastic piece 12A facing the mating end 1a is a second side wall R2, and the first side wall R1 and the second side wall R2 are disposed at intervals to form a variability through hole 1c. The variability through hole 1c corresponds to the hollow region A1 if the second sidewall R2 participates in defining the hollow region A1; if the second sidewall R2 is located at the rear side of the hollow area A1 (as shown in fig. 2), a portion of the variability through hole 1c corresponds to the hollow area A1.

The side wall of the end of the second elastic sheet 12b facing the connecting end 1b is a third side wall R3, the side wall of the compressible space corresponding to the connecting end 1b is a fourth side wall R4, and the third side wall R3 is connected to the fourth side wall R4, so that the second elastic sheet 12b is connected and covers the connecting area A2 (as shown in fig. 2).

In some embodiments, the elastic plug-in portion 1 is adapted to be plugged into a plug-in hole of the circuit board, i.e. the opposite end is a plug-in hole; the part of the elastic plug-in part 1 corresponding to the stress area B is a stress part, the diameter of the cross-section circumcircle of the stress part is larger than or equal to the diameter of the plug-in hole, the cross section of the stress part is perpendicular to the length direction of the elastic plug-in part, so that the diameter of the cross-section circumcircle of the part of the elastic plug-in part 1 corresponding to the hollow area A1 and the connecting area A2 is smaller than the diameter of the plug-in hole, and the elastic plug-in part 1 can be inserted into the plug-in hole more easily to play a certain guiding role.

Therefore, when the elastic plug-in portion 1 and the plug-in hole are matched, at least part of the stress portion is located in the plug-in hole, so that at least part of the elastic component 12A is located in the plug-in hole, the arrangement of the first elastic piece 12A and the second elastic piece 12b can increase the extrusion force between the elastic arm 11 and the hole wall of the plug-in hole, and the matching stability of the elastic plug-in portion 1 and the plug-in hole is improved.

Illustratively, in the example of fig. 2, the width of the stress portion is greater than or equal to the diameter of the mating hole, at least the first elastic tab 12A is connected to the stress portion (e.g., only the first elastic tab 12A is connected to the stress portion, or both a portion of the second elastic tab 12b and the first elastic tab 12A are connected to the stress portion), when the stress portion is deformed by the inner wall of the mating hole, the stress portion has a tendency to return to its original shape such that the stress portion is in electrical contact with the inner wall of the mating hole, while the elastic member 12A applies a force toward the stress portion to effectively increase the contact area and retention force of the stress portion with the inner wall of the mating hole.

Of course, in the length direction of the elastic arm 11, the elastic component 12A extends beyond the length range of the stress portion to the portion of the elastic plug-in portion 1 corresponding to the connection area A2, where the stress portion and the portion of the elastic plug-in portion 1 corresponding to the connection area A2 cooperate to increase the extrusion force and the contact area between the elastic arm 11 and the wall of the plug-in hole, so as to improve the stability of the fit between the elastic plug-in portion 1 and the plug-in hole.

Compared with the prior art, aiming at the terminals without the elastic pieces, the elastic plug-in parts are in poor contact with the inner walls of the plug-in holes and are easy to generate indirect contact, so that the electric connector is broken; in the application, the stress area B is provided with the first elastic piece 12a, the connecting area A2 is provided with the second elastic piece 12B, the first elastic piece 12a and the second elastic piece 12B can apply acting force towards the elastic arm 11, continuous and full electric contact between the stress part and the inner wall of the insertion hole is realized, and meanwhile, the retention force of the stress part can be improved, so that the stress part always keeps full electric contact with the insertion hole, and stable electric performance connection between the terminal 100 and the circuit board is ensured.

In some embodiments, two ends of the first elastic sheet 12a are respectively connected to the inner walls of the pair of elastic arms 11, and two ends of the second elastic sheet 12b are respectively connected to the inner walls of the pair of elastic arms 11; in the length direction of the elastic insertion portion 1, the distance between the first elastic piece 12a and the insertion end 1a is equal to the length of the second elastic piece 12B, which can be understood that in the length direction of the elastic insertion portion 1, the length of the hollow area A1 is equal to the length of the connection area A2, so that the deformation amount of the stress portion after the stress area B receives the acting force of the opposite end is balanced, so that the acting force between each portion of the elastic arm of the stress area B and the opposite end is equal, and the stability of the electric contact between the elastic insertion portion 1 and the opposite end is improved.

In some embodiments, as shown in fig. 2, the elastic piece 12 of the elastic component 12A adjacent to the connection end 1b has a first edge 12c and a second edge 12d opposite to each other, the first edge 12c extends continuously toward the connection end 1b and is connected to both the first elastic arm 111 and the connection end 1b, the second edge 12d extends continuously toward the connection end 1b and is connected to both the second elastic arm 112 and the connection end 1b, the elastic piece 12 adjacent to the connection end 1b connects the first elastic arm 111, the second elastic arm 112 and the connection end 1b, and the elastic component 12A is connected to the connection end 1b and covers the connection area A2, so that an elastic restoring force of the elastic plug-in portion 1 adjacent to the connection end 1b is increased, thereby enabling the elastic plug-in portion 1 to return to an initial shape more quickly after being plugged into the mating end to restrict the release of the elastic plug-in portion 1.

In some embodiments, as shown in fig. 2, on a preset plane, the sum of the length of the orthographic projection of the elastic component 12A in the length direction of the elastic plug-in portion 1 and the length of the orthographic projection of the deformable through hole 1c in the length direction of the elastic plug-in portion 1 is equal to the minimum distance between the plug-in end 1a and the connection end 1b, and the preset plane is parallel to the length direction of the elastic plug-in portion 1; when the elastic pieces 12 are one, the elastic pieces 12 are arranged at intervals with the inserting and matching end 1a, the elastic pieces 12 extend to the connecting end 1b continuously along the length direction and are connected with the connecting end 1b, when the elastic pieces 12 are multiple, the elastic pieces 12 close to the inserting and matching end 1a in the elastic pieces 12 are arranged at intervals with the inserting and matching end 1a, the elastic pieces 12 close to the connecting end 1b in the elastic pieces 12 are connected with the connecting end 1b, and the elastic pieces 12 are free from intervals and are not connected so as to reduce the processing difficulty of the terminal 100.

It should be noted that, on the preset plane, the length of the orthographic projection of the elastic component 12A in the length direction of the elastic insertion portion 1 is equal to the sum of the lengths of all the elastic pieces 12 in the elastic component 12A in the length direction of the elastic insertion portion 1.

In some embodiments, as shown in fig. 1, the elastic pieces 12 are plural and the plural elastic pieces 12 are sequentially arranged along the length direction of the elastic arm 11, each elastic piece 12 connects the first elastic arm 111 and the second elastic arm 112, and the plural elastic pieces 12 are sequentially arranged along the direction of the mating end 1a toward the connecting end 1b, so that in the length direction (for example, the front-rear direction in fig. 1) of the elastic mating portion 1, the two outermost elastic pieces 12 are respectively spaced from the mating end 1a and the connecting end 1 b; wherein, two adjacent elastic sheets 12 are not connected, each elastic sheet 12 is respectively connected with two elastic arms 11, so as to fully exert the elastic capability of each elastic sheet 12 and avoid the interference of two adjacent elastic sheets 12.

At this time, the plurality of elastic pieces 12 apply force together towards the two elastic arms 11 to push the two elastic arms 11 away from each other, so that the elastic arms 11 apply enough holding force to the opposite ends to effectively limit the elastic insertion and matching part 1 from being separated from the opposite ends, and meanwhile, the contact area between the elastic arms 11 and the opposite ends is conveniently increased, and the elastic insertion and matching part 1 and the opposite ends are ensured to be connected reliably.

Alternatively, in other embodiments, the elastic sheet 12 is one.

In some embodiments, as shown in fig. 1, at least one of the first elastic sheet 12a and the second elastic sheet 12b is formed in a flat plate structure, and the arrangement of the first elastic sheet 12a and the second elastic sheet 12b may be set according to practical requirements, for example, the first elastic sheet 12a and the second elastic sheet 12b may be sequentially set along the length direction of the elastic arm 11, or a portion of the first elastic sheet 12a and a portion of the second elastic sheet 12b may be stacked in a direction perpendicular to the length direction of the elastic arm 11, or the like. Thus, the elastic sheet 12 of the flat plate structure is simple in structure and convenient to realize.

In some embodiments, as shown in fig. 1, at least one of the first elastic sheet 12a and the second elastic sheet 12b is formed in a curved plate structure, and in this case, the arrangement manner of the plurality of elastic sheets 12 may be set according to actual requirements, for example, the first elastic sheet 12a and the second elastic sheet 12b may be sequentially set along the length direction of the elastic arm 11, or a portion of the first elastic sheet 12a and a portion of the second elastic sheet 12b may be stacked along a direction perpendicular to the length direction of the elastic arm 11, or the like. Thus, the elastic sheet 12 of the curved plate structure is simple in structure and has good deformability.

In some embodiments, as shown in fig. 1, the elastic sheets 12 are plural, at least one of the plurality of elastic sheets 12 is formed in a flat plate structure, and at least one of the remaining elastic sheets 12 is formed in a curved plate structure.

In the following, an example is described in which the elastic sheet 12 includes two elastic sheets 12, and those skilled in the art will readily understand embodiments in which the elastic sheet 12 includes three or more elastic sheets 12. For example, in the example of fig. 2, both elastic pieces 12 are formed as a curved plate structure; of course, both elastic sheets 12 may also be formed in a flat plate structure, or one of the two elastic sheets 12 may be formed in a flat plate structure and the other may be formed in a curved plate structure.

In the embodiment of the present application, the elastic sheet 12 is formed in a flat plate structure or a curved plate structure, and refers to the shape of the elastic sheet 12 when the elastic insertion portion 1 is in a natural state or when the elastic insertion portion 1 is not subjected to other external forces.

Alternatively, a plurality of elastic sheets 12 are provided at intervals; of course, two adjacent elastic sheets 12 may also be disposed in abutment.

In some embodiments, as shown in fig. 1 and 4, the curved plate structure includes a first plate 121 and a second plate 122 connected in a bending manner, the first plate 121 is connected to the first elastic arm 111, and the second plate 122 is connected to the second elastic arm 112, so that the curved plate structure has a deformation capability and an elastic restoring force, and further improves the elastic deformation capability and the elastic restoring capability of the elastic sheet 12; when the two elastic arms 11 are extruded by the opposite ends, the first plate 121 and the second plate 122 which are connected in a bending manner deform towards the direction close to each other, so that the elastic inserting and matching part 1 is inserted and matched smoothly, and meanwhile, the first plate 121 and the second plate 122 which are connected in a bending manner have a trend of recovering the initial form, so that elastic acting force is applied to the two elastic arms 11, the extrusion force and the extrusion area between the elastic arms 11 and the opposite ends are increased, and the stability of the terminal 100 and the electric connection of the opposite ends is ensured.

In some embodiments, as shown in fig. 4, the elastic sheets 12 are plural, and the plural elastic sheets 12 include a first elastic sheet 12a and a second elastic sheet 12b, the first elastic sheet 12a and the second elastic sheet 12b are sequentially disposed along the length direction of the elastic plug-in portion 1, and the first elastic sheet 12a and the second elastic sheet 12b respectively protrude toward both sides of the thickness of the elastic plug-in portion 1. At this time, the first elastic piece 12a and the second elastic piece 12b may be both formed into a V-shaped structure or a U-shaped structure, so as to avoid interference between the first elastic piece 12a and the second elastic piece 12b when the first elastic piece 12a and the second elastic piece 12b deform, and make the elastic forces exerted by the first elastic piece 12a and the second elastic piece 12b towards the two elastic arms 11 get a good balance, so that the two deformed elastic arms 11 are located substantially in the same plane, thereby avoiding the elastic plug-in portion 1 from being distorted, and further ensuring that the elastic piece 12 stably limits the elastic plug-in portion 1 from coming out of the opposite ends.

For example, in the example of fig. 1 and 2, the plurality of elastic pieces 12 includes a first elastic piece 12a and a second elastic piece 12b, both of the first elastic piece 12a and the second elastic piece 12b are formed in a curved plate structure, and both of the first elastic piece 12a and the second elastic piece 12b include a first plate 121 and a second plate 122 that are connected by bending, the first elastic piece 12 protrudes toward the upper side of the elastic insertion portion 1, the second elastic piece 12 protrudes toward the lower side of the elastic insertion portion 1, and the first elastic piece 12a and the second elastic piece 12b are not connected.

In some embodiments, as shown in fig. 1-3, 4 and 6, the thickness of the elastic plug-in portion 1 is t, the length of the elastic component 12A is a, the thickness of the elastic sheet 12 is b, a is greater than or equal to 0.5mm, and 0.1×t is less than or equal to 0.5×t in the direction of the plug-in end 1a toward the connection end 1b, so as to ensure the supporting strength of the elastic sheet 12, improve the retention force between the elastic plug-in portion 1 and the opposite end, avoid deformation of the elastic plug-in portion 1 after long-time operation to reduce the stability of the electrical connection between the terminal 100 and the opposite end, and simultaneously enable the elastic sheet 12 to apply a sufficient and proper force to the elastic arm 11, so that the elastic arm 11 deforms sufficiently to increase the contact area with the opposite end, thereby ensuring the stability of the electrical contact between the terminal 100 and the opposite end. a may be 0.5mm, 0.6mm, 0.7mm, or 0.8mm, etc., and b may be 0.1×t, 0.2×t, 0.35×t, 0.4×t, or 0.5×t, etc.

Alternatively, in the example of fig. 1, the plurality of elastic pieces 12 are plural, the plurality of elastic pieces 12 are sequentially disposed along the direction of the mating end 1a toward the connecting end 1b, and there is no space between two adjacent elastic pieces 12, where the length a of the elastic component 12A may be the sum of the lengths of the plurality of elastic pieces 12 in the direction of the mating end 1a toward the connecting end 1 b.

In some embodiments, as shown in fig. 1 and 2, each elastic arm 11 has an outer side wall 11b facing away from the other elastic arm 11, and the outer side walls 11b are connected to two side walls of the elastic arm 11 in the thickness direction (for example, the up-down direction in fig. 1) of the elastic plug-in portion 1 through rounded transitions, so as to ensure smooth contact between the elastic arm 11 and the mating end, and avoid the elastic arm 11 from puncturing or wearing the conductive material of the mating end when the elastic plug-in portion 1 is plugged into the mating end, so as to protect the mating end, thereby ensuring good electrical connection between the terminal 100 and the mating end.

For example, in the example of fig. 1 and 4, two elastic arms 11 are disposed opposite each other in the left-right direction, the thickness direction of the elastic insertion portion 1 is the up-down direction, the left side wall of the left elastic arm 11 is an outer side wall 11b, the outer side wall 11b is connected with the upper side wall and the lower side wall of the left elastic arm 11 by rounded corners, respectively, the right side wall of the right elastic arm 11 is an outer side wall 11b, and the outer side wall 11b is connected with the upper side wall and the lower side wall of the right elastic arm 11 by rounded corners, respectively.

In some embodiments, as shown in fig. 1-2, the terminal 100 further includes a limiting portion 2, where the limiting portion 2 is in transitional connection with the connecting end 1b through a rounded corner, so that two sides of the connecting end 1b in a width direction (e.g., a left-right direction in fig. 1) of the elastic plug-in portion 1 are in transitional connection with a side wall of the limiting portion 2 facing the elastic plug-in portion 1 through a rounded corner, so that the elastic plug-in portion 1 is correctly inserted into the opposite end, and twisting and bending of the elastic plug-in portion 1 in an insertion process are avoided, so that a small deviation or no deviation basically exists in a positive position of the elastic plug-in portion 1a is ensured, and reliability of electrical connection of the terminal 100 is improved.

In the present application, the width direction of the elastic insertion portion 1 is the same as the arrangement direction of the two elastic arms 11.

Optionally, the limiting part 2 limits the depth of the terminal 100 inserted into the opposite end, so that the optimal position of the elastic insertion part 1 is in electrical contact with the inner wall of the opposite end, and the reliability of the electrical connection between the terminal 100 and the opposite end is improved; and/or the limiting part 2 is used for stopping with the inserting mechanism or the inserting tool, so that the inserting structure or the inserting tool applies inserting acting force to the elastic inserting part 1 through the limiting part 2, and the smoothness of inserting is improved.

In some embodiments, as shown in fig. 1, 2 and 5, the terminal 100 further includes a guiding portion 3, where the guiding portion 3 is disposed at the mating end 1a and is used for guiding the elastic mating portion 1, and a cross-sectional area of the guiding portion 3 is smaller than a cross-sectional area of a transition fillet between the limiting portion 2 and the connecting end 1b, so that the elastic mating portion 1 does not need to be aligned with the mating end very accurately, and the guiding portion can guide the elastic mating portion 1 to be mated with the mating end, so as to reduce assembly difficulty of the terminal 100 and the mating end.

Wherein, the cross-sectional area of the guiding portion 3 is smaller than the cross-sectional area of the transition fillet between the limiting portion 2 and the connecting end 1b, it can be understood that the cross-sectional area corresponding to the maximum cross-sectional position of the guiding portion 3 is smaller than the cross-sectional area corresponding to the minimum cross-sectional position of the transition fillet, so as to prevent the elastic insertion portion 1 from being distorted and bent during the insertion process, so as to ensure that the deviation of the positive position of the elastic insertion portion 1 is smaller or basically no deviation.

Alternatively, the cross-sectional area of the guide portion 3 may be gradually reduced in a direction away from the stopper portion 2 so as to further promote the guiding action of the guide portion 3. For example, in the examples of fig. 1, 2 and 5, the guide portion 3 is provided at the mating end 1a, and the guide portion 3 is located at an end of the elastic mating portion 1 away from the limiting portion 2, the guide portion 3 is formed in a prismatic table shape so that the peripheral wall of the guide portion 3 may be formed with a chamfer, and the area of the cross section of the guide portion 3 is gradually reduced in the length direction of the terminal 100 and the direction away from the limiting portion 2 so that the guide portion is more smoothly mated to the mating end. Of course, the shape of the guide portion 3 is not limited thereto, and the guide portion 3 may be formed in a tapered shape, for example.

In the present utility model, the cross section of the guide portion 3 is parallel to the cross section of the transition fillet, and the cross section of the guide portion 3 is perpendicular to the longitudinal direction of the elastic insertion portion 1, so that the cross section of the guide portion 3 is perpendicular to the direction along the insertion end 1a toward the connection end 1 b.

An electrical connector according to an embodiment of the second aspect of the present utility model comprises a terminal 100 according to an embodiment of the first aspect of the present utility model described above.

For example, the opposite mating end is a mating hole on the printed circuit board, and the elastic mating part 1 of the terminal 100 is plugged into the mating hole to realize stable electrical connection between the terminal 100 and the printed circuit board; at this time, the elastic sheet 12 is located in the mating hole, and the elastic sheet 12 has a tendency of recovering the initial form, so that the elastic sheet 12 applies an acting force towards the elastic arm 11, so that the elastic arm 11 is tightly attached to the inner wall of the mating hole, and the contact area and the extrusion force of the elastic arm 11 and the inner wall of the mating hole are increased, so that a sufficient electrical contact area between the terminal 100 and the circuit board is ensured, and further, the stable and reliable electrical connection between the terminal 100 and the circuit board is ensured, and the occurrence of signal interruption of the electrical connector is avoided.

According to the electrical connector of the embodiment of the present utility model, by adopting the terminal 100 described above, the stability of the electrical connection of the electrical connector can be ensured.

A wire harness according to an embodiment of a third aspect of the present utility model includes the electrical connector according to the above-described embodiment of the second aspect of the present utility model. For example, the terminal 100 is used to electrically connect a circuit board and an electric wire.

According to the wire harness provided by the embodiment of the utility model, the electrical connector can ensure reliable connection of the wire harness.

A vehicle according to an embodiment of a fourth aspect of the present utility model includes a wire harness according to the embodiment of the above-described third aspect of the present utility model.

According to the vehicle provided by the embodiment of the utility model, the wire harness is adopted, so that the reliable electrical connection between the components is ensured, and the driving safety of the vehicle is ensured.

In the description of the present utility model, it should be understood that the terms "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (13)

1. A terminal is characterized by comprising an elastic insertion part, an insertion end and a connecting end, wherein the insertion end and the connecting end are respectively formed by extending from two ends of the elastic insertion part,

the elastic insertion part comprises a pair of elastic arms which are formed by arc extension, and a hollow area is arranged between the pair of elastic arms and close to the insertion end;

a first elastic sheet and a second elastic sheet are arranged between the pair of elastic arms so as to provide stress support for the pair of elastic arms, the first elastic sheet is positioned in a stress area between the pair of elastic arms, and the second elastic sheet is arranged in a connection area between the connection end and the stress area.

2. The terminal according to claim 1, wherein the stress region is located between the hollow region and the connection region in a length direction of the elastic insertion portion, and a sum of a length of the first elastic piece, a distance between the first elastic piece and the insertion end, and a length of the second elastic piece is equal to a distance between the insertion end and the connection end.

3. The terminal according to claim 1, wherein the elastic insertion portion is adapted to be inserted into an insertion hole of a circuit board, a portion of the elastic insertion portion corresponding to the stress region is a stress portion, a diameter of a cross-sectional circumcircle of the stress portion is larger than or equal to a diameter of the insertion hole, and a cross-section of the stress portion is perpendicular to a length direction of the elastic insertion portion.

4. The terminal of claim 3, wherein both ends of the first elastic piece are respectively connected to inner walls of the pair of elastic arms, and both ends of the second elastic piece are respectively connected to inner walls of the pair of elastic arms; and in the length direction of the elastic insertion part, the distance between the first elastic sheet and the insertion end is equal to the length of the second elastic sheet.

5. The terminal of claim 4, wherein at least one of the first and second resilient pieces is formed as a flat plate structure.

6. The terminal of claim 4, wherein at least one of the first and second resilient pieces is formed as a curved plate structure.

7. The terminal of claim 6, wherein the curved plate structure includes a first plate and a second plate connected in a bent manner, the first plate being connected to one of the pair of spring arms and the second plate being connected to the other of the pair of spring arms.

8. The terminal according to claim 1, wherein the first elastic piece and the second elastic piece are provided in order along a length direction of the elastic insertion portion, the first elastic piece and the second elastic piece protruding toward both sides of a thickness of the elastic insertion portion, respectively.

9. The terminal according to any one of claims 1 to 8, wherein each of the elastic arms has an outer side wall facing away from the other elastic arm, the outer side walls being connected to both side walls of the elastic arm in a thickness direction of the elastic mating portion, respectively, by rounded transitions.

10. The terminal according to any one of claims 1 to 8, further comprising:

and the limiting part is in transition connection with the connecting end through a round angle.

11. An electrical connector comprising a terminal according to any one of claims 1-10.

12. A wire harness comprising the electrical connector according to claim 11.

13. A vehicle characterized by comprising the wire harness according to claim 12.