CN111668633A - Large-current connecting structure - Google Patents

Abstract

The invention provides a high-current connecting structure which comprises a spring piece terminal, wherein the spring piece terminal comprises a fixing plate, a first clamping part and a second clamping part; the first clamping part is fixed on one long side edge of the fixing plate; the second clamping part is fixed on the other long side edge of the fixed plate; the first clamping part and the second clamping part respectively comprise a plurality of elastic sheets arranged at intervals along the length direction of the fixing plate; all the elastic sheets of the first clamping part are divided into two groups: each elastic piece of one group of elastic pieces is aligned along the length direction of the fixed plate, and each elastic piece of the other group of elastic pieces is aligned along the length direction of the fixed plate; all the elastic sheets of the second clamping part are divided into two groups: each elastic piece of one group of elastic pieces aligns along the length direction of the fixed plate, and each elastic piece of the other group of elastic pieces aligns along the length direction of the fixed plate, so that different stamping dies do not need to be developed according to different current requirements to produce the connecting structure.

Description

Large-current connecting structure

Technical Field

The invention belongs to the technical field of electric automobiles, and particularly relates to a high-current connecting structure.

Background

The current connection structure mainly has two types, the first type is a round terminal, and the second type is a combined type sheet metal terminal. Wherein, the panel of combination formula panel beating terminal passes through stamping die punching press to become the shape of drawing regulation, and the part cost of combination formula panel beating terminal is with low costs than the part of circular terminal, but the shortcoming of combination formula panel beating terminal is: the combined type sheet metal terminal meets the rated current of a step, and when the current exceeding the rated current is needed, a new stamping die needs to be developed to manufacture a new combined type sheet metal terminal so as to meet new requirements.

Disclosure of Invention

The invention aims to provide a high-current connecting structure to solve the technical problem that a combined sheet metal terminal in the prior art needs to develop a new stamping die to produce the connecting structure so as to meet different current requirements.

In order to achieve the purpose, the invention adopts the technical scheme that: the large-current connecting structure comprises a spring plate terminal, wherein the spring plate terminal comprises a fixing plate, a first clamping part and a second clamping part;

the first clamping part is fixed on one long side edge of the fixing plate and used for clamping the first male terminal;

the second clamping part is fixed on the other long side edge of the fixing plate and used for clamping a second male terminal;

the first clamping part and the second clamping part respectively comprise a plurality of elastic sheets arranged at intervals along the length direction of the fixing plate;

all the elastic pieces of the first clamping part are divided into two groups: each elastic piece of one group of elastic pieces is aligned along the length direction of the fixing plate, each elastic piece of the other group of elastic pieces is aligned along the length direction of the fixing plate, and a first clamping space for clamping and embedding the first male terminal is formed by one side of one group of elastic pieces in the thickness direction of the fixing plate and one side of the other group of elastic pieces in the thickness direction of the fixing plate;

all the elastic pieces of the second clamping part are divided into two groups: each of the elastic pieces of one set of the elastic pieces is aligned along the length direction of the fixing plate, each of the elastic pieces of the other set of the elastic pieces is aligned along the length direction of the fixing plate, and a second clamping space for clamping and embedding the second male terminal is formed between one side of one set of the elastic pieces in the thickness direction of the fixing plate and one side of the other set of the elastic pieces in the thickness direction of the fixing plate.

Further, each of the elastic pieces includes a first plate and a second plate fixed to one end of the first plate, one end of each of the first plates, which is far away from the second plate, is fixed to the fixing plate and is set as a first end of the elastic piece, one end of each of the second plates, which is far away from the first plate, is set as a second end of the elastic piece, and among three elastic pieces, which are arbitrarily arranged in sequence, located on the same side of the fixing plate: the second plates of the adjacent elastic pieces are arranged at intervals in the thickness direction of the fixed plate, and the second plates of the two non-adjacent elastic pieces are aligned along the length direction of the fixed plate;

the second plate corresponding to the first clamping part is contacted with the first male terminal;

the second plate corresponding to the second clamping part is in contact with the second male terminal.

Furthermore, the spring terminal is a stamping part formed by continuous stamping.

Furthermore, the elastic pieces of the first clamping part are arranged at equal intervals along the length direction of the fixing plate;

the plurality of elastic pieces of the second clamping portion are arranged at equal intervals along the length direction of the fixing plate.

Furthermore, the spring plate terminal also comprises a plurality of first guide plates, and each first guide plate corresponds to the elastic plate one by one;

each first guide plate is fixed on one side of the corresponding elastic piece, arranged along the edge of the corresponding elastic piece, and positioned between the corresponding first end and the corresponding second end, the first guide plate corresponding to the first clamping portion is positioned outside the corresponding first clamping space, the first guide plate corresponding to the second clamping portion is positioned outside the corresponding second clamping space, and each first guide plate inclines along the thickness direction of the corresponding elastic piece from one side close to the corresponding elastic piece to one side far away from the corresponding elastic piece.

Furthermore, the spring plate terminal also comprises a plurality of second guide plates, and one side of the spring plate, which is far away from the corresponding first guide plate, is set as a connection side;

each second guide plate corresponds to the elastic sheet one by one;

the second guide plates are fixed to the corresponding connection sides, arranged along the edges of the corresponding elastic pieces, and located between the corresponding first ends and the corresponding second ends, the second guide plates corresponding to the first clamping portions are located outside the corresponding first clamping spaces, the second guide plates corresponding to the second clamping portions are located outside the corresponding second clamping spaces, and each second guide plate inclines in the thickness direction of the corresponding elastic piece from the position close to the corresponding connection side to the position far away from the corresponding connection side.

Further, the spring terminal further includes a plurality of third guide plates, each of the third guide plates corresponds to one of the elastic pieces, the third guide plates are fixed to an edge of the corresponding second end, the third guide plate corresponding to the first clamping portion is located outside the corresponding first clamping space, the third guide plate corresponding to the second clamping portion is located outside the corresponding second clamping space, and each of the third guide plates is inclined in a thickness direction of the corresponding elastic piece from an edge close to the corresponding second end to an edge far from the corresponding second end.

Furthermore, the high-current connection structure further comprises a first sheath positioned on one side of the elastic sheet terminal, and the first sheath comprises a first connection plate and a plurality of first elastic sheets;

the first connecting plate is fixed on one side of the fixed plate in the thickness direction;

the first elastic sheet is fixed on the first connecting plate and avoids the first male terminal and the second male terminal;

all the first elastic pieces are divided into two groups; the group of first elastic sheets are positioned at one outer side of the first clamping space, correspond to the elastic sheets positioned at the same side of the first clamping space one by one and contact one side of the elastic sheets departing from the first clamping space; the other group of first elastic sheets are positioned at the outer side of the second clamping space, correspond to and contact with the elastic sheets positioned at the same side of the second clamping space one by one, and contact with one side of the elastic sheets departing from the second clamping space; the elastic force of each first elastic sheet of one group of the first elastic sheets faces the first clamping space, and the elastic force of each first elastic sheet of the other group of the first elastic sheets faces the second clamping space.

Further, the high-current connection structure further comprises a first sheath located on one side of the spring terminal, which is far away from the first sheath, and the second sheath comprises a second connection plate and a plurality of second springs;

the second connecting plate is fixed on one side of the fixing plate, which is far away from the first connecting plate;

the second elastic sheet is fixed on the second connecting plate and avoids the first male terminal and the second male terminal;

all the second elastic pieces are divided into two groups; the group of second elastic sheets are positioned on the outer side of the first clamping space, back to the first elastic sheets, correspond to the elastic sheets positioned on the same side of the first clamping space one by one and are in contact with one side of the elastic sheets, which is far away from the first clamping space; the other group of second elastic sheets are positioned on the outer side of the second clamping space, back to the first elastic sheets, are in one-to-one correspondence and contact with the elastic sheets positioned on the same side of the second clamping space, and are in contact with one side of the elastic sheets departing from the second clamping space; the elastic force of each second elastic sheet of one group of second elastic sheets faces the first clamping space, and the elastic force of each second elastic sheet of the other group of second elastic sheets faces the second clamping space.

Further, the first sheath and the second sheath are provided as a metal sheath.

The high-current connection structure provided by the invention has the beneficial effects that: compared with the prior art, the elastic sheet terminal can simultaneously clamp the first male terminal and the second male terminal, and is simple in structure and low in cost. The user can be according to the operating current size of difference, the length direction along the fixed plate with the fixed plate cut into corresponding length can to the user need not develop the mould again and produces the heavy current connection structure of different operating current sizes, greatly reduced the manufacturing cost of heavy current connection structure, satisfy customer's different demands simultaneously. When a large-current connecting structure needs to be installed, only the first male terminal is required to be embedded in the first clamping space, and the second male terminal is required to be embedded in the second clamping space, so that the installation is very convenient.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a high-current connection structure according to an embodiment of the present invention;

fig. 2 is an exploded view of a high current connection structure according to an embodiment of the present invention;

fig. 3 is a schematic partial structure diagram of a dome terminal of a high-current connection structure according to an embodiment of the present invention;

fig. 4 is a partial structural diagram of a high-current connection structure according to an embodiment of the present invention;

fig. 5 is a partial structural schematic diagram of a large-current connection structure according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1. a dome terminal; 11. a fixing plate; 12. a first clamping portion; 121. a first clamping space; 13. a second clamping portion; 131. a second clamping space; 1213. an elastic sheet; 1213a, first end; 1213b, a second end; 12131. a first plate; 12132. a second plate; 14. a first guide plate; 141. a first structure; 15. a second guide plate; 151. a second structure; 16. a third guide plate; 161. a third structure; 2. a first male terminal; 3. a second male terminal; 4. a first sheath; 41. a first connecting plate; 42. a first spring plate; 5. a second sheath; 51. a second connecting plate; 52. a second elastic sheet; 6. and (4) riveting.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1, fig. 2 and fig. 3 together, a description will now be given of a high-current connection structure according to the present invention. A high-current connection structure comprises a spring terminal 1, wherein the spring terminal 1 comprises a fixing plate 11, a first clamping part 12 and a second clamping part 13;

the first clamping part 12 is fixed on one long side of the fixing plate 11 and used for clamping the first male terminal 2;

the second clamping part 13 is fixed on the other long side of the fixing plate 11 and used for clamping the second male terminal 3;

the first clamping portion 12 and the second clamping portion 13 each include a plurality of elastic pieces 1213 arranged at intervals along the length direction of the fixed plate 11;

all the elastic pieces 1213 of the first clamping portion 12 are divided into two groups: each elastic piece 1213 of one group of elastic pieces 1213 is aligned along the length direction of the fixed plate 11, each elastic piece 1213 of the other group of elastic pieces 1213 is aligned along the length direction of the fixed plate 11, and a first clamping space 121 for snap-fitting the first male terminal 2 is formed between one side of one group of elastic pieces 1213 in the thickness direction of the fixed plate 11 and one side of the other group of elastic pieces 1213 in the thickness direction of the fixed plate 11;

all the elastic pieces 1213 of the second clamping portion 13 are divided into two groups: each of the elastic pieces 1213 of one group of the elastic pieces 1213 is aligned in the length direction of the fixed plate 11, each of the elastic pieces 1213 of the other group of the elastic pieces 1213 is aligned in the length direction of the fixed plate 11, and a second clamping space 131 for snap-fitting the second male terminal 3 is formed between one side of one group of the elastic pieces 1213 in the thickness direction of the fixed plate 11 and one side of the other group of the elastic pieces 1213 in the thickness direction of the fixed plate 11.

Compared with the prior art, the high-current connecting structure provided by the invention has the advantages that the elastic sheet terminal 1 can simultaneously clamp the first male terminal 2 and the second male terminal 3, the structure is simple, and the cost is low. The user can be according to the operating current size of difference, along the length direction of fixed plate 11 with fixed plate 11 shear become corresponding length can to the user need not develop the mould again and produces the heavy current connection structure of different operating current sizes, greatly reduced the manufacturing cost of heavy current connection structure, satisfy customer's different demands simultaneously. When a large-current connection structure needs to be installed, only the first male terminal 2 needs to be clamped and embedded in the first clamping space 121, and the second male terminal 3 needs to be clamped and embedded in the second clamping space 131, so that the installation is very convenient.

Further, referring to fig. 3, fig. 4 and fig. 5, as an embodiment of a large current connection structure provided by the present invention, each of the elastic sheets 1213 includes a first plate 12131 and a second plate 12132 fixed to an end of the first plate 12131, an end of each of the first plates 12131 away from the second plate 12132 is fixed to the fixed plate 11 and is set as a first end 1213a of the elastic sheet 1213, an end of the second plate 12132 away from the first plate 12131 is set as a second end 1213b of the elastic sheet 1213, and among three elastic sheets 1213 arranged in any order on the same side of the fixed plate 11: the second plates 12132 of adjacent elastic sheets 1213 are spaced apart in the thickness direction of the fixed plate 11, the second plates 12132 of two non-adjacent elastic sheets 1213 are aligned in the length direction of the fixed plate 11,

the second plate 12132 corresponding to the first clamping portion 12 is in contact with the first male terminal 2;

the second plate 12132 corresponding to the second clamping portion 13 is in contact with the second male terminal 3.

The elastic sheet 1213 has a simple structure and is easy to be manufactured by stamping. The second plate 12132 corresponding to the first clamping portion 12 contacts the first male terminal 2, so that the influence of the first male terminal 2 on the first plate 12131 corresponding to the first clamping portion 12 is reduced, and the service life of the elastic sheet 1213 corresponding to the first clamping portion 12 is prolonged. The second plate 12132 corresponding to the second clamping portion 13 contacts the second male terminal 3, so that the influence of the second male terminal 3 on the first plate 12131 corresponding to the second clamping portion 13 is reduced, and the service life of the elastic sheet 1213 corresponding to the second clamping portion 13 is prolonged.

Further, as a specific embodiment of the large-current connection structure provided by the present invention, the tab terminal 1 is a stamping formed by continuous stamping.

The manufacturer can produce the spring plate terminals 1 with different lengths according to actual requirements, and the spring plate terminals 1 with different lengths correspond to different working current sizes, so that the requirements of users are directly met. The manufacturer can also produce the shrapnel terminal 1 with a certain length, and the user can cut the shrapnel terminal 1 with a corresponding length from the shrapnel terminal 1 with a certain length according to the requirement of the user.

Further, referring to fig. 3, fig. 4 and fig. 5, as an embodiment of the large current connection structure provided by the present invention, the plurality of elastic pieces 1213 of the first clamping portion 12 are disposed at equal intervals along the length direction of the fixing plate 11;

the plurality of elastic pieces 1213 of the second clamping portion 13 are arranged at equal intervals along the length direction of the fixing plate 11, so that the large-current connection structure can be conveniently manufactured by die sinking, and the production cost of the large-current connection structure can be reduced.

Further, referring to fig. 3, fig. 4 and fig. 5, as a specific embodiment of the large current connection structure provided by the present invention, the dome terminal 1 further includes a plurality of first guiding plates 14, and each of the first guiding plates 14 corresponds to one of the elastic sheets 1213;

each first guiding plate 14 is fixed on one side of the corresponding elastic sheet 1213, disposed along the edge of the corresponding elastic sheet 1213, and located between the corresponding first end 1213a and the corresponding second end 1213b, the first guiding plate 14 corresponding to the first clamping portion 12 is located outside the corresponding first clamping space 121, the first guiding plate 14 corresponding to the second clamping portion 13 is located outside the corresponding second clamping space 131, and each first guiding plate 14 is inclined along the thickness direction of the corresponding elastic sheet 1213 from the side close to the corresponding elastic sheet 1213 to the side far from the corresponding elastic sheet 1213, so that the first guiding plate 14 and the corresponding elastic sheet 1213 form a first structure 141 having a V-shaped cross section, preferably, the cross-sectional included angle of the first structure 141 is an obtuse angle.

When a user connects the first male terminal 2 to the high-current connection structure, the first male terminal 2 first contacts the first guide plate 14, and the first guide plate 14 guides the first male terminal 2 to the first clamping space 121 of the first clamping portion 12. Similarly, when the user connects the second male terminal 3 to the high-current connection structure, the second male terminal 3 slides into the second clamping space 131 from the side of the elastic sheet 1213 where the first guide plate 14 is fixed, the second male terminal 3 first contacts with the first guide plate 14, and the first guide plate 14 guides the second male terminal 3 into the second clamping space 131.

Specifically, the smooth transition between the first guide plate 14 and the corresponding elastic piece 1213 ensures that the first guide plate 14 guides the first male terminal 2 into the first clamping space 121 and that the first guide plate 14 guides the second male terminal 3 to the inside of the second clamping space 131.

Optimally, one edge in the width direction of the first guide plate 14 is connected to the edge of the corresponding elastic sheet 1213.

Further, referring to fig. 3, fig. 4 and fig. 5, as a specific embodiment of the large current connection structure provided by the present invention, the dome terminal 1 further includes a plurality of second guiding plates 15, and one side of the elastic sheet 1213 away from the corresponding first guiding plate 14 is set as a connection side (not shown);

each second guide plate 15 corresponds to the elastic pieces 1213 one by one;

and second guide plates 15 fixed to the corresponding connection sides, disposed along the edges of the corresponding elastic pieces 1213, and located between the corresponding first ends 1213a and the corresponding second ends 1213b, the second guide plates 15 corresponding to the first clamping portions 12 are located outside the corresponding first clamping spaces 121, the second guide plates 15 corresponding to the second clamping portions 13 are located outside the corresponding second clamping spaces 131, and each second guide plate 15 is inclined in a thickness direction of the corresponding elastic piece 1213 from a side close to the corresponding connection side to a side far from the corresponding connection side, so that the second guide plates 15 and the corresponding elastic pieces 1213 form a second structure 151 having a V-shaped cross section, and preferably, an included angle of the cross section of the second structure 151 is an obtuse angle.

When a user connects the first male terminal 2 to the high-current connection structure, the first male terminal 2 contacts the second guide plate 15 during sliding the first male terminal 2 into the first holding space 121 from the side of the elastic sheet 1213 where the second guide plate 15 is fixed, and the second guide plate 15 guides the first male terminal 2 to the inside of the first holding space 121. Similarly, when a user connects the second male terminal 3 to the high-current connection structure, the second male terminal 3 contacts the second guide plate 15 during the process that the second male terminal 3 slides into the second clamping space 131 from the side of the elastic sheet 1213 where the second guide plate 15 is fixed, and the second guide plate 15 guides the second male terminal 3 to the second clamping space 131.

Specifically, the smooth transition between the second guide plate 15 and the corresponding elastic piece 1213 ensures that the second guide plate 15 guides the first male terminal 2 to the inside of the first clamping space 121 and ensures that the second guide plate 15 guides the second male terminal 3 to the inside of the second clamping space 131.

Further, referring to fig. 3, fig. 4 and fig. 5, as a specific embodiment of a large current connection structure provided by the present invention, the dome terminal 1 further includes a plurality of third guide plates 16, each third guide plate 16 corresponds to an elastic sheet 1213, the third guide plates 16 are fixed on the edge of the corresponding second end 1213b, the third guide plate 16 corresponding to the first clamping portion 12 is located outside the corresponding first clamping space 121, the third guide plate 16 corresponding to the second clamping portion 13 is located outside the corresponding second clamping space 131, each third guide plate 16 inclines along the thickness direction of the corresponding elastic sheet 1213 from the edge close to the corresponding second end 1213b to the edge far from the corresponding second end 1213b, the third guide plate 16 and the corresponding elastic sheet 1213 form a third structure 161 with a V-shaped cross section, and the cross section of the third structure 161 is preferably at an obtuse angle.

When the user slides the first male terminal 2 into the inside of the first clamping space 121 from the side of the elastic sheet 1213 where the third guide plate 16 is fixed while connecting the first male terminal 2 to the large-current connection structure, the first male terminal 2 comes into contact with the third guide plate 16, and the third guide plate 16 guides the first male terminal 2 to the inside of the first clamping space 121. Similarly, when the user slides the second male terminal 3 into the inside of the second clamping space 131 from the side of the elastic sheet 1213 where the third guide plate 16 is fixed when connecting the second male terminal 3 to the large-current connection structure, the second male terminal 3 contacts the third guide plate 16, and the third guide plate 16 guides the second male terminal 3 to the inside of the second clamping space 131. Through the matching of the first guide plate 14, the corresponding second guide plate 15 and the corresponding third guide plate 16, the first male terminal 2 is convenient to clamp on the high-current connection structure from three different directions of the first clamping part 12, and the second male terminal 3 is convenient to clamp on the high-current connection structure from three different directions of the second clamping part 13, so that the convenience of the use of the high-current connection structure is improved. The elastic pieces 1213 are press-formed integrally with the corresponding first guide plate 14, the corresponding second guide plate 15, and the corresponding third guide plate 16.

Specifically, the smooth transition between the third guide plate 16 and the corresponding elastic piece 1213 ensures that the third guide plate 16 guides the first male terminal 2 to the inside of the first clamping space 121 and that the second guide plate 15 guides the second male terminal 3 to the inside of the second clamping space 131.

Further, as a specific embodiment of the large-current connection structure provided by the present invention, the third guide plate 16 is connected to the corresponding first guide plate 14 and transits smoothly, so as to improve the stability of the third guide plate 16 and the corresponding first guide plate 14 fixed to the corresponding elastic sheet 1213.

Further, as a specific embodiment of the large-current connection structure provided by the present invention, the third guide plate 16 is connected to the corresponding second guide plate 15 and transits smoothly, so as to improve the stability of fixing the third guide plate 16 and the corresponding second guide plate 15 to the corresponding elastic sheet 1213.

Further, referring to fig. 2, fig. 3, fig. 4 and fig. 5, as an embodiment of the large current connection structure provided by the present invention, the large current connection structure further includes a first sheath 4 located at one side of the elastic piece terminal 1, and the first sheath 4 includes a first connection plate 41 and a plurality of first elastic pieces 42;

the first connecting plate 41 is fixed on one side in the thickness direction of the fixed plate 11;

the first elastic sheet 42 is fixed on the first connecting plate 41, and the first elastic sheet 42 avoids the first male terminal 2 and the second male terminal 3;

all the first elastic pieces 42 are divided into two groups; the group of first elastic sheets 42 are located at an outer side of the first clamping space 121, correspond to the elastic sheets 1213 located at the same side of the first clamping space 121 one by one, and contact with one side of the elastic sheets 1213 departing from the first clamping space 121; the other group of first elastic sheets 42 are located outside the second clamping space 131, are in one-to-one correspondence with and contact with the elastic sheets 1213 located on the same side of the second clamping space 131, and are in contact with one side of the elastic sheets 1213 departing from the second clamping space 131; the elastic force of each first elastic sheet 42 of one set of first elastic sheets 42 faces the first clamping space 121, and the elastic force of each first elastic sheet 42 of the other set of first elastic sheets 42 faces the second clamping space 131.

The group of first resilient tabs 42 of the first sheath 4 provides the elastic force facing the first clamping space 121 for the elastic tabs 1213 on the same side outside the first clamping space 121, and the other group of first resilient tabs 42 of the first sheath 4 provides the elastic force facing the first clamping space 121 for the elastic tabs 1213 on the same side outside the second clamping space 131, so that the elastic tabs 1213 are less prone to fatigue failure after frequent use, and the stability of the elastic tabs 1213 contacting the first male terminal 2 and the second male terminal 3 is improved. The first elastic sheet 42 avoids the first male terminal 2 and the second male terminal 3, and the influence of the first elastic sheet 42 on the first male terminal 2 and the second male terminal 3 is reduced.

Specifically, in the continuous stamping process, a continuous length of the first sheath 4 is formed using a corresponding continuous stamping die, and the continuous length of the first sheath 4 is cut according to the length of the dome terminal 1.

Further, referring to fig. 2, fig. 3, fig. 4 and fig. 5, as an embodiment of the large-current connection structure provided by the present invention, the large-current connection structure further includes a second sheath 5 located on a side of the spring terminal 1 away from the first sheath 4, and the second sheath 5 includes a second connection plate 51 and a plurality of second springs 52;

the second connecting plate 51 is fixed on the side of the fixing plate 11 far away from the first connecting plate 41;

the second elastic sheet 52 is fixed on the second connecting plate 51, and the second elastic sheet 52 avoids the first male terminal 2 and the second male terminal 3;

all the second elastic pieces 52 are divided into two groups; the group of second elastic sheets 52 are located on the outer side of the first clamping space 121, which faces away from the first elastic sheet 42, and are in one-to-one correspondence with the elastic sheets 1213 located on the same side of the first clamping space 121, and are in contact with one side of the elastic sheets 1213 away from the first clamping space 121; the other group of second elastic sheets 52 are located on the outer side of the second clamping space 131, which is away from the first elastic sheet 42, and are in one-to-one correspondence and contact with the elastic sheets 1213 located on the same side of the second clamping space 131, and are in contact with the side of the elastic sheets 1213 away from the second clamping space 131; the elastic force of each second elastic sheet 52 of one set of second elastic sheets 52 faces the first clamping space 121, and the elastic force of each second elastic sheet 52 of the other set of second elastic sheets 52 faces the second clamping space 131.

One set of the second resilient sheets 52 of the second sheath 5 provides the elastic sheet 1213, which is located outside the first clamping space 121 and faces away from the first resilient sheet 42, with an elastic force toward the first clamping space 121, and the other set of the second resilient sheets 52 of the second sheath 5 provides the elastic sheet 1213, which is located outside the second clamping space 131 and faces away from the first resilient sheet 42, with an elastic force toward the second clamping space 131, so that the elastic sheets 1213 are not prone to fatigue failure after frequent use, and the stability of the elastic sheets 1213 contacting the first male terminal 2 and the second male terminal 3 is improved. The first elastic sheet 42 avoids the first male terminal 2 and the second male terminal 3, and the influence of the first elastic sheet 42 on the first male terminal 2 and the second male terminal 3 is reduced.

Specifically, in the continuous stamping process, a continuous length of the second sheath 5 is formed using a corresponding continuous stamping die, and the continuous length of the second sheath 5 is cut according to the length of the dome terminal 1.

Further, as a specific embodiment of a large-current connection structure provided by the present invention, the first sheath 4 and the second sheath 5 are provided as metal sheaths.

The first sheath 4 has low contact resistance with the elastic sheet 1213, and the heat dissipation is good. The second sheath 5 has low contact resistance with the elastic sheet 1213, and the heat dissipation is good.

Further, referring to fig. 2, fig. 3, fig. 4 and fig. 5, as an embodiment of the large current connection structure provided by the present invention, the large current connection structure further includes a rivet 6, the first connection plate 41, the second connection plate 51 and the fixing plate 11 are connected by the rivet 6, and the connection process between the first connection plate 41, the second connection plate 51 and the fixing plate 11 is simple.

The first connecting plate 41, the second connecting plate 51 and the fixing plate 11 can be connected by welding, and the connection process between the first connecting plate 41, the second connecting plate 51 and the fixing plate 11 is simple.

The first connecting plate 41, the second connecting plate 51 and the fixing plate 11 can be connected through screws, and the connection process between the first connecting plate 41, the second connecting plate 51 and the fixing plate 11 is simple.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A high-current connection structure is characterized by comprising a spring plate terminal, wherein the spring plate terminal comprises a fixing plate, a first clamping part and a second clamping part;

the first clamping part is fixed on one long side edge of the fixing plate and used for clamping the first male terminal;

the second clamping part is fixed on the other long side edge of the fixing plate and used for clamping a second male terminal;

the first clamping part and the second clamping part respectively comprise a plurality of elastic sheets arranged at intervals along the length direction of the fixing plate;

all the elastic pieces of the first clamping part are divided into two groups: each elastic piece of one group of elastic pieces is aligned along the length direction of the fixing plate, each elastic piece of the other group of elastic pieces is aligned along the length direction of the fixing plate, and a first clamping space for clamping and embedding the first male terminal is formed by one side of one group of elastic pieces in the thickness direction of the fixing plate and one side of the other group of elastic pieces in the thickness direction of the fixing plate;

all the elastic pieces of the second clamping part are divided into two groups: each of the elastic pieces of one set of the elastic pieces is aligned along the length direction of the fixing plate, each of the elastic pieces of the other set of the elastic pieces is aligned along the length direction of the fixing plate, and a second clamping space for clamping and embedding the second male terminal is formed between one side of one set of the elastic pieces in the thickness direction of the fixing plate and one side of the other set of the elastic pieces in the thickness direction of the fixing plate.

2. The high-current connection structure according to claim 1, wherein each of the elastic pieces includes a first plate and a second plate fixed to an end of the first plate, an end of each of the first plates remote from the second plate is fixed to the fixed plate and is set as a first end of the elastic piece, an end of each of the second plates remote from the first plate is set as a second end of the elastic piece, and among any three elastic pieces arranged in sequence on the same side of the fixed plate: the second plates of the adjacent elastic pieces are arranged at intervals in the thickness direction of the fixed plate, and the second plates of the two non-adjacent elastic pieces are aligned along the length direction of the fixed plate;

the second plate corresponding to the first clamping part is contacted with the first male terminal;

the second plate corresponding to the second clamping part is in contact with the second male terminal.

3. The high-current connection structure according to claim 1, wherein said tab terminal is provided as a stamping formed by continuous stamping.

4. The large-current connection structure according to claim 1, wherein the plurality of elastic pieces of the first clamping portion are arranged at equal intervals along a length direction of the fixing plate;

the plurality of elastic pieces of the second clamping portion are arranged at equal intervals along the length direction of the fixing plate.

5. The high-current connection structure of claim 2, wherein the dome terminal further comprises a plurality of first guide plates, each of the first guide plates corresponding to the spring plate one to one;

each first guide plate is fixed on one side of the corresponding elastic piece, arranged along the edge of the corresponding elastic piece, and positioned between the corresponding first end and the corresponding second end, the first guide plate corresponding to the first clamping portion is positioned outside the corresponding first clamping space, the first guide plate corresponding to the second clamping portion is positioned outside the corresponding second clamping space, and each first guide plate inclines along the thickness direction of the corresponding elastic piece from one side close to the corresponding elastic piece to one side far away from the corresponding elastic piece.

6. The high-current connection structure of claim 5, wherein the dome terminal further comprises a plurality of second guide plates, and one side of the spring plate away from the corresponding first guide plate is set as a connection side;

each second guide plate corresponds to the elastic sheet one by one;

the second guide plates are fixed to the corresponding connection sides, arranged along the edges of the corresponding elastic pieces, and located between the corresponding first ends and the corresponding second ends, the second guide plates corresponding to the first clamping portions are located outside the corresponding first clamping spaces, the second guide plates corresponding to the second clamping portions are located outside the corresponding second clamping spaces, and each second guide plate inclines in the thickness direction of the corresponding elastic piece from the position close to the corresponding connection side to the position far away from the corresponding connection side.

7. The high-current connection structure of claim 6, wherein the tab terminal further includes a plurality of third guide plates, each of the third guide plates corresponds to the elastic piece one by one, the third guide plates are fixed to edges of the corresponding second ends, the third guide plate corresponding to the first clamping portion is located outside the corresponding first clamping space, the third guide plate corresponding to the second clamping portion is located outside the corresponding second clamping space, and each of the third guide plates is inclined in a thickness direction of the corresponding elastic piece from an edge close to the corresponding second end to an edge far from the corresponding second end.

8. The high-current connection structure of claim 1, further comprising a first sheath located at one side of the spring terminal, wherein the first sheath comprises a first connection plate and a plurality of first springs;

the first connecting plate is fixed on one side of the fixed plate in the thickness direction;

the first elastic sheet is fixed on the first connecting plate and avoids the first male terminal and the second male terminal;

all the first elastic pieces are divided into two groups; the group of first elastic sheets are positioned at one outer side of the first clamping space, correspond to the elastic sheets positioned at the same side of the first clamping space one by one and contact one side of the elastic sheets departing from the first clamping space; the other group of first elastic sheets are positioned at the outer side of the second clamping space, correspond to and contact with the elastic sheets positioned at the same side of the second clamping space one by one, and contact with one side of the elastic sheets departing from the second clamping space; the elastic force of each first elastic sheet of one group of the first elastic sheets faces the first clamping space, and the elastic force of each first elastic sheet of the other group of the first elastic sheets faces the second clamping space.

9. The high-current connection structure of claim 8, further comprising a first sheath located on a side of the spring terminal away from the first sheath, wherein the second sheath comprises a second connection plate and a plurality of second springs;

the second connecting plate is fixed on one side of the fixing plate, which is far away from the first connecting plate;

the second elastic sheet is fixed on the second connecting plate and avoids the first male terminal and the second male terminal;

all the second elastic pieces are divided into two groups; the group of second elastic sheets are positioned on the outer side of the first clamping space, back to the first elastic sheets, correspond to the elastic sheets positioned on the same side of the first clamping space one by one and are in contact with one side of the elastic sheets, which is far away from the first clamping space; the other group of second elastic sheets are positioned on the outer side of the second clamping space, back to the first elastic sheets, are in one-to-one correspondence and contact with the elastic sheets positioned on the same side of the second clamping space, and are in contact with one side of the elastic sheets departing from the second clamping space; the elastic force of each second elastic sheet of one group of second elastic sheets faces the first clamping space, and the elastic force of each second elastic sheet of the other group of second elastic sheets faces the second clamping space.

10. The high-current connection structure according to claim 9, wherein the first sheath and the second sheath are provided as a metal sheath.

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