CN218770176U

CN218770176U - Electric connector terminal

Info

Publication number: CN218770176U
Application number: CN202223289881.2U
Authority: CN
Inventors: 胡闺臣
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-03-28
Anticipated expiration: 2032-12-08

Abstract

The utility model provides an electric connector terminal, which comprises an installation sleeve and a step hole arranged in the installation sleeve, wherein a bone spring is arranged in the step hole, and the installation sleeve is also provided with a fixed sleeve for compressing the bone spring; the bone spring comprises a first end part and a second end part, a plurality of elastic sheet structures uniformly distributed along the circumferential direction are arranged between the first end part and the second end part, a first concave part and a second concave part are formed on the elastic sheet structures in a bending mode, and the outer diameter of the connecting point of the first concave part and the second concave part is smaller than that of the first end part and the second end part; the inner diameter of the lowest point of the first concave part and the second concave part is smaller than that of the insertion hole; a stepped slotted hole with the inner diameter smaller than that of the stepped hole is also arranged in the mounting sleeve and is coaxial with the stepped hole; the number of contact points between the reed structure and the male terminal is increased, and the effect of reliable contact of multiple contact points is met.

Description

Electric connector terminal

Technical Field

The utility model relates to an electric connector field, concretely relates to electric connector terminal.

Background

In an electronic device, in order to electrically connect components that are electrically independent from each other, an electrical connector is generally required, and the electrical connector can electrically connect two independent electrical structures. The linear energy storage connector is one of common electrical connectors, and includes a board end socket fixed on the device housing and a line end plug inserted into the board end socket, where the line end plug is electrically connected to the board end socket after being conducted, for example, in the field of electric vehicles, the energy storage connector is often used for charging connection.

Because the two-part structure is formed by adopting the mode of inserting and matching the plug and the socket, the requirement on the conductivity after insertion is higher, and the reliable conductive stability is ensured to be formed in the long-term use process.

A reed structure is generally arranged in the female terminal to realize cladding and compression after the male terminal is inserted, and can ensure stable conductive connection between the male terminal and the female terminal, the commonly used reed structure in the prior art comprises a rotary spring, a torsion spring, a fish scale leaf spring, a crown spring and the like, as shown in fig. 1, the structural schematic diagram of the rotary spring is shown, and an elastic reed between two end parts of the rotary spring is twisted in a rotating direction; as shown in fig. 2, which is a schematic structural diagram of a torsion spring, the elastic reeds between two end portions of the torsion spring are in a cross-twisting structure; as shown in fig. 3, which is a schematic structural view of a fish scale leaf spring, a plurality of fish scale structures in a turnover structure are arranged between two end portions; as shown in fig. 4, which is a schematic structural diagram of the crown spring, a spring sheet structure is provided between two ends, which is concave inwards; in the above-mentioned reed structure, the contact point between commentaries on classics spring, torsional spring and hat spring and the public terminal is the single-point position, and although fish scale leaf spring and public terminal between have a plurality of contact points, fish scale leaf spring structure is complicated, changes the spring and all need to cooperate automation equipment to carry out the shaping with the torsional spring in the forming process and twists reverse, hat spring accessible stamping forming.

The contact points between the existing reed structure and the male terminal are fewer, the current-carrying capacity is poorer, and the reed structure with stronger current-carrying capacity is more complex.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists among the prior art, the utility model provides an electric connector terminal has solved the contact point between current reed structure and the public terminal less or has satisfied the problem that the structure is complicated but the multiple contact point.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an electric connector terminal comprises a mounting sleeve and a step hole arranged in the mounting sleeve, wherein a bone spring is arranged in the step hole, and the mounting sleeve is also provided with a fixed sleeve for compressing the bone spring;

the bone spring comprises a first end part and a second end part, a plurality of elastic sheet structures uniformly distributed along the circumferential direction are arranged between the first end part and the second end part, a first concave part and a second concave part are formed by bending the elastic sheet structures, and the outer diameter of the connecting point of the first concave part and the second concave part is smaller than that of the first end part and that of the second end part;

the inner diameter of the lowest point of the first concave part and the second concave part is smaller than that of the insertion hole;

and a stepped step slot hole with the inner diameter smaller than that of the stepped hole is also formed in the mounting sleeve, and the stepped step slot hole is coaxial with the stepped hole.

Preferably, the bone spring is of an integrally punch-formed structure.

Preferably, the cross section of each of the first recess and the second recess is a V-shaped structure.

Preferably, a connecting point of the first concave part and the second concave part, a lowest point of the first concave part and a lowest point of the second concave part are provided with fillet transition structures.

Preferably, the mounting sleeve is provided with a step structure for mounting the fixing sleeve;

the fixed sleeve is provided with a clamping groove used for clamping the step structure and the first end part of the bone spring;

the width of the clamping groove is smaller than the sum of the wall thickness of the step structure and the wall thickness of the first end portion.

Preferably, the width of the outer side wall of the fixed sleeve attached to the step structure is greater than the width of the inner side wall of the fixed sleeve attached to the first end part;

the width of the inner side wall of the fixed sleeve attached to the first end part is the same as that of the first end part.

Preferably, a guiding fillet structure is arranged at a corner on one side, close to the insertion hole, of the fixing sleeve.

Preferably, the mounting sleeve is made of red copper, and the fixing sleeve is made of stainless steel.

Compared with the prior art, the utility model discloses following beneficial effect has:

the bone spring structure is characterized in that a plurality of elastic sheet structures which are uniformly distributed in the circumferential direction are arranged between the first end part and the second end part, each elastic sheet structure is provided with a first concave part and a second concave part, and the inner diameter of the lowest point of each first concave part and each second concave part is smaller than that of the corresponding insertion hole, so that after the male terminal is inserted into the insertion hole, the connection point of the first concave part and the second concave part can be inwards deformed after contacting the lowest point of the first concave part, and after the lowest point of the second concave part contacts the male terminal, a plurality of points on the elastic sheet structures can be contacted with the male terminal, so that the current carrying capacity is improved;

the whole bone spring structure can be processed by adopting a punch forming process, so that the processing difficulty can be reduced, and the processing efficiency can be improved;

meanwhile, the stepped slotted hole is formed in the mounting sleeve, so that other parts of the electric connector can be mounted, and the integration level of the whole terminal is further improved.

Drawings

FIG. 1 is a schematic diagram of a prior art rotary spring;

FIG. 2 is a schematic diagram of a torsion spring according to the prior art;

fig. 3 is a schematic structural diagram of a fish scale leaf spring in the prior art;

FIG. 4 is a schematic diagram of a crown spring according to the prior art;

fig. 5 is a schematic structural diagram of an embodiment of the present invention;

fig. 6 is a schematic structural view of a bone spring according to an embodiment of the present invention;

in the figure, the position of the upper end of the main shaft,

the mounting sleeve comprises a mounting sleeve 1, a stepped hole 10, a stepped structure 11, a stepped slotted hole 12, a bone spring 2, a first end 21, a second end 22, an elastic sheet structure 23, a first concave part 24, a second concave part 25, a fillet transition structure 26, a fixing sleeve 3, a clamping groove 30, an outer side wall 31, an inner side wall 32 and a guide fillet structure 33.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

As shown in fig. 5-6, the embodiment of the present invention provides an electrical connector terminal, including installation cover 1 and locating step hole 10 in installation cover 1, install bone spring 2 in the step hole 10, still be equipped with on the installation cover 1 and compress tightly fixed cover 3 of bone spring 2 can realize compressing tightly in step hole 10 to bone spring 2 after installing installation cover 1 through fixed cover 3 to can reliably contact with bone spring 2 after male terminal inserts, and realize the electrically conductive connection between male terminal and the installation cover 1.

The bone spring 2 comprises a first end portion 21 and a second end portion 22, wherein a plurality of elastic sheet structures 23 uniformly distributed along the circumferential direction are arranged between the first end portion 21 and the second end portion 22, a gap is formed between every two adjacent elastic sheet structures 23, so that the elastic sheet structures 23 have good elastic deformation effect, a first concave portion 24 and a second concave portion 25 are formed on each elastic sheet structure 23 in a bent mode, the outer diameter of the connecting point of the first concave portion 24 and the second concave portion 25 is smaller than the outer diameter of the first end portion 21 and the second end portion 22, an insertion hole penetrating through the first end portion 21 and the second end portion 22 is further included, and the inner diameter of the lowest point of the first concave portion 24 and the second concave portion 25 is smaller than the inner diameter of the insertion hole; after the male terminal is inserted into the insertion hole, the male terminal is firstly contacted with the first concave part 24 and gradually makes the connecting point of the first concave part 24 and the second concave part 25 abut against the inner wall of the stepped hole 10, so that the second concave part 25 deforms towards the male terminal, after the male terminal is completely inserted, because the lowest points of the first concave part 24 and the second concave part 25 contact on the male terminal and the connecting point of the first concave part 24 and the second concave part 25 abuts against the inner wall of the stepped hole 10, the deformation of the whole elastic sheet structure 23 and the contact of a plurality of points of the male terminal can be realized, so that the reliable contact between the male terminal and the whole bone spring 2 is ensured, the current-carrying strength is improved, and the conductive connection between the male terminal and the mounting sleeve 1 is formed.

The cross sections of the first concave part 24 and the second concave part 25 are both in a V-shaped structure, so that the elastic deformation strength of the first concave part 24 and the second concave part 25 is improved, and the reliable contact between the male terminal and the female terminal is ensured; meanwhile, in order to make the male terminal smooth and improve the contact surface during the insertion process, rounded corner transition structures 26 are arranged at the connection point of the first concave portion 24 and the second concave portion 25, the lowest point of the first concave portion 24 and the lowest point of the second concave portion 25.

In order to improve the structural stability and the machining efficiency of bone spring 2, let bone spring 2 stamping forming structure as an organic whole to can reduce the quantity of automation equipment, can the shaping after one-time stamping forming, avoid the condition of many times processing, can also promote machining efficiency under the condition of guaranteeing structural strength.

Meanwhile, a stepped step groove hole 12 with the inner diameter smaller than that of the stepped hole 10 is further formed in the mounting sleeve 1, the stepped step groove hole 12 is coaxial with the stepped hole 10, other devices of the energy storage connector can be conveniently mounted in the stepped hole 10, the size of the whole terminal is controllable, and the mounting of the bone spring 2 is not influenced.

Specifically, be equipped with on installation cover 1 and be used for the installation fixed cover 3's stair structure 11, and fixed cover 3 is equipped with and is used for the chucking stair structure 11 and the draw-in groove 30 of the first end 21 of bone spring 2, just the width of draw-in groove 30 is less than stair structure 11's wall thickness with the wall thickness sum of first end 21 to let draw-in groove 30 can carry out the chucking with stair structure 11 and bone spring 2's first end 21, and combine step hole 10 spacing to bone spring 2, thereby can realize reliably installing the location to bone spring 2.

Further, let fixed cover 3 laminating the width of lateral wall 31 of stair structure 11 is greater than fixed cover 3 laminates the width of the inside wall 32 of first end 21, just fixed cover 3 laminates the width of the inside wall 32 of first end 21 with the width of first end 21 is the same, and it is higher to let the lateral wall 31 of fixed cover 3 can be on stair structure 11 complex stability to form better pulling effect to inside wall 32 position, and the width of inside wall 32 is the same with the width of first end 21 simultaneously, can let the assurance carry out under the condition reliably fixed to first end 21, can also improve the gliding stability of public terminal of direction.

Meanwhile, a guide fillet structure 33 is arranged at the corner of the fixing sleeve 3 close to one side of the insertion hole, and has a guide effect when the male terminal is inserted.

In order to ensure the conductive effect, the mounting sleeve 1 is made of red copper, and meanwhile, in order to ensure the structural strength of the fixing sleeve 3, the fixing sleeve 3 is made of stainless steel.

Through 2 institutional advancement backs to the bone spring, not only can be adapted to integrative stamping forming processing to can improve and the public terminal between contact point quantity and contact connection stability, thereby let the electrically conductive connection stability between whole terminal and the public terminal promote, the current-carrying capacity reinforcing.

In the description of the present invention, it should be understood that the terms indicating the orientation or the positional relationship are based on the orientation or the positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the products of the present invention are usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. An electrical connector terminal, comprising: the bone spring fixing device comprises a mounting sleeve (1) and a step hole (10) arranged in the mounting sleeve (1), wherein a bone spring (2) is arranged in the step hole (10), and a fixing sleeve (3) for pressing the bone spring (2) is further arranged on the mounting sleeve (1);

the bone spring (2) comprises a first end part (21) and a second end part (22), a plurality of elastic sheet structures (23) uniformly distributed along the circumferential direction are arranged between the first end part (21) and the second end part (22), a first concave part (24) and a second concave part (25) are formed in each elastic sheet structure (23) in a bending mode, and the outer diameter of the connecting point of the first concave part (24) and the second concave part (25) is smaller than that of the first end part (21) and the second end part (22);

the insertion hole penetrates through the first end part (21) and the second end part (22), and the inner diameter of the lowest point of the first concave part (24) and the second concave part (25) is smaller than that of the insertion hole;

a step groove hole (12) with the inner diameter smaller than that of the step hole (10) is further formed in the mounting sleeve (1), and the step groove hole (12) is coaxial with the step hole (10).

2. An electrical connector terminal according to claim 1, wherein: the bone spring (2) is of an integrated punch forming structure.

3. An electrical connector terminal according to claim 1, wherein: the cross sections of the first concave part (24) and the second concave part (25) are both V-shaped structures.

4. An electrical connector terminal according to claim 3, wherein: and fillet transition structures (26) are arranged at the connecting point of the first concave part (24) and the second concave part (25), the lowest point of the first concave part (24) and the lowest point of the second concave part (25).

5. An electrical connector terminal according to any one of claims 1 to 4, wherein: the mounting sleeve (1) is provided with a step structure (11) for mounting the fixing sleeve (3);

the fixing sleeve (3) is provided with a clamping groove (30) for clamping the step structure (11) and the first end part (21) of the bone spring (2);

the width of the clamping groove (30) is smaller than the sum of the wall thickness of the step structure (11) and the wall thickness of the first end portion (21).

6. An electrical connector terminal according to claim 5, wherein: the width of the outer side wall (31) of the fixed sleeve (3) attached to the step structure (11) is greater than the width of the inner side wall (32) of the fixed sleeve (3) attached to the first end part (21);

the width of the inner side wall (32) of the fixed sleeve (3) attached to the first end part (21) is the same as the width of the first end part (21).

7. An electrical connector terminal according to claim 6, wherein: the corner on the fixed sleeve (3) close to one side of the insertion hole is provided with a guide fillet structure (33).

8. An electrical connector terminal according to claim 7, wherein: the material of installation cover (1) is red copper, the material of fixed cover (3) is stainless steel.