CN218448539U

CN218448539U - Large-current contact pin type female terminal wiring terminal

Info

Publication number: CN218448539U
Application number: CN202222926261.9U
Authority: CN
Inventors: 刁华伟; 余强; 高运杰
Original assignee: Dongguan Jingduan Precision Hardware Products Co ltd
Current assignee: Dongguan Jingduan Precision Hardware Products Co ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-02-03
Anticipated expiration: 2032-11-03

Abstract

The utility model discloses a female end binding post of contact pin formula of heavy current, including wiring portion and terminal body, establish terminal location portion and contact pin location portion on the terminal body, the terminal holding ring is established to the periphery of terminal location portion, and contact pin location portion is the hourglass structure, evenly is equipped with a plurality of grooving that are parallel to each other and relative axis slope along the circumferencial direction on its lateral wall. The utility model is provided with the hourglass-shaped pin positioning part and the cutting groove on the hourglass-shaped pin positioning part, a plurality of elastic sheets with two fixed ends and inwards bent middle parts can be formed on the outer wall of the pin positioning part, the deformation of each elastic sheet is in a smaller range, and the locking and insertion of the pin inside the elastic sheet are realized; through setting up the grooving into inclined structure, can form the shell fragment of slope on contact pin location portion, when the contact pin inserted along the axial, changed the contact pin into multi-thread contact or multiaspect contact with the multiple spot contact of shell fragment (contact pin location portion), increase the area of contact of the two to reach the purpose that increases the electric area, reinforcing electric current.

Description

Large-current pin type female terminal wiring terminal

Technical Field

The utility model relates to a binding post technical field, in particular to female end binding post of contact pin formula of heavy current.

Background

The contact pin type wiring terminal is a common wiring terminal and is used for connecting a cable and an electrical appliance interface, and when the contact pin type wiring terminal is used, a contact pin of an electrical appliance is directly inserted into the wiring terminal, so that the operation is very convenient. Simultaneously, the profile characteristic of contact pin has also decided to need to set up the connection location structure of annular arrangement on binding post, and for practicality and economic nature consideration, mostly adopt the shell fragment structure to realize the chucking location on the binding post of this type of structure at present, the contact pin is the multiple spot contact with binding post in fact and realizes that the circuit switches on, and this has also led to the actual area of crossing of contact pin less, and the electric current of circuit is generally smaller.

With the diversified development of the current electric appliances, particularly the rapid development of new energy electric vehicles, the small current cannot meet the use requirements of the electric appliances. Therefore, the utility model discloses female end binding post's to the contact pin formula structure improves, is guaranteeing under the prerequisite of firm connection, promotes binding post's overcurrent.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the above-mentioned prior art, the utility model provides a female end binding post of contact pin formula of heavy current can form the shell fragment of inwards buckling in the fixed middle part in a plurality of slopes, both ends on the outer wall of contact pin location portion, with the deformation of every shell fragment all present less within range, the multi-thread contact of contact pin and shell fragment or multiaspect contact after the pressurized, area of contact is great to reach the increase and cross the mesh of electric area, reinforcing current.

In order to solve the technical problem, the utility model discloses a technical scheme as follows:

a large-current pin-type female terminal wiring terminal comprises a U-shaped wiring part and an annular terminal body, wherein a terminal positioning part and a pin positioning part are arranged on the terminal body, and the wiring part is connected with the terminal positioning part; wherein:

a plurality of first clamping grooves extending along the outline direction of the wiring part are axially arranged on the outer wall of the wiring part, and a plurality of bulges matched with the first clamping grooves one by one are formed on the inner wall of the wiring part;

the periphery of the terminal positioning part is sleeved with a terminal positioning ring in a matching manner, and a plurality of cantilever elastic sheets which extend obliquely outwards are uniformly arrayed on the terminal positioning ring along the circumferential direction;

the contact pin positioning part is of an hourglass structure, and a plurality of mutually parallel cutting grooves which are inclined relative to the axis are uniformly formed in the side wall of the contact pin positioning part along the circumferential direction.

As a further elaboration of the above technical solution:

in the above technical scheme, be equipped with on the outer wall of terminal body with the second draw-in groove of terminal holding ring adaptation, be equipped with one on the terminal body and go up first locating hole groove on the diapire of second draw-in groove, be equipped with more than one second locating hole groove on the terminal body.

In the above technical scheme, the terminal positioning ring is provided with a plurality of third positioning clamping protrusions which are matched with the first positioning hole grooves and the second positioning hole grooves and extend towards the inner side.

In the above technical solution, the movable end of each cantilever spring plate faces the wiring portion.

In the above technical solution, the outer wall of each cantilever spring is provided with a reinforcing rib.

In the above technical solution, the wire connection portion and the terminal body are integrally formed.

In the above technical solution, the included angle between each cutting groove and the axis is between 0 ° and 30 °.

In the technical scheme, the pin positioning portion is provided with a locking buckle integrally formed with the pin positioning portion on two sides of the plurality of cutting grooves, and the clamping directions of the two locking buckles are different.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model has the advantages that the hourglass-shaped contact pin positioning part is arranged and the cutting groove is arranged on the hourglass-shaped contact pin positioning part, so that a plurality of elastic pieces with two fixed ends and inwards bent middle parts can be formed on the outer wall of the contact pin positioning part, the deformation of each elastic piece is in a smaller range, and the contact pin inserted into the inner side of each elastic piece is locked; the grooving is arranged into an inclined structure, so that an inclined elastic sheet can be formed on the positioning part of the contact pin, when the contact pin is inserted along the axial direction, the multi-point contact between the contact pin and the elastic sheet (the positioning part of the contact pin) is changed into multi-line contact or multi-surface contact, the contact area of the contact pin and the elastic sheet is increased, and the purposes of increasing the over-current area and enhancing the current are achieved; through set up terminal location portion and contact pin location portion on binding post to establish the terminal holding ring in the periphery of terminal location portion, can fix binding post on the connection port of electrical apparatus, with the connection contact pin locking on electrical apparatus on contact pin location portion through the terminal holding ring respectively, make electrical apparatus with the utility model discloses a connect more firmly, difficult pine takes off.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

fig. 2 is a schematic structural view of the terminal positioning ring removed in the present embodiment;

fig. 3 is a schematic structural view of another perspective after the terminal positioning ring is detached in the embodiment;

fig. 4 is a schematic structural diagram of the terminal positioning ring in the embodiment.

In the figure: 10. a wiring portion; 11. a first card slot; 12. a protrusion; 20. a terminal body; 21. a terminal positioning portion; 22. a pin positioning part; 30. a terminal positioning ring; 31. a cantilever spring; 1. grooving; 2. a second card slot; 3. a first positioning hole groove; 4. a second positioning hole groove; 5. a third positioning clamp is convex; 6. reinforcing ribs; 7. and locking the buckle.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. 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 application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

As shown in fig. 1-4, a large-current pin-type female terminal includes a U-shaped wiring portion 10 and an annular terminal body 20, wherein the terminal body 20 is provided with a terminal positioning portion 21 and a pin positioning portion 22, and the wiring portion 10 is connected to the terminal positioning portion 21; wherein:

a plurality of first clamping grooves 11 extending along the outline direction of the wiring part 10 are axially arranged on the outer wall of the wiring part 10, and a plurality of protrusions 12 matched with the first clamping grooves 11 one by one are formed on the inner wall of the wiring part 10;

the periphery of the terminal positioning part 21 is sleeved with a terminal positioning ring 30 in a matching manner, and a plurality of cantilever spring pieces 31 which extend obliquely outwards are uniformly arrayed on the terminal positioning ring 30 along the circumferential direction;

the pin positioning part 22 has an hourglass structure, and a plurality of mutually parallel and inclined cutting grooves 1 are uniformly arranged on the side wall of the hourglass structure along the circumferential direction.

The utility model has the advantages that the hourglass-shaped contact pin positioning part 22 is arranged, the cutting groove 1 is arranged on the hourglass-shaped contact pin positioning part, a plurality of elastic sheets with two fixed ends and inwards bent middle parts can be formed on the outer wall of the contact pin positioning part 22, the deformation of each elastic sheet is in a smaller range, and the contact pin inserted into the inner side of the elastic sheet is locked; through setting up grooving 1 to the slope structure, can form the shell fragment of slope on contact pin location portion 22, when the contact pin inserted along the axial, changed the contact of contact pin and shell fragment (contact pin location portion 22) multiple point into multi-thread contact or multiaspect contact, increase the area of contact of the two to reach the purpose that increases the electric area, reinforcing electric current. Simultaneously, through set up terminal location portion 21 and contact pin location portion 22 on binding post to establish terminal holding ring 30 in terminal location portion 21's periphery, can fix binding post on the connection port of electrical apparatus, lock the connection contact pin on the electrical apparatus on contact pin location portion 22 through terminal holding ring 30 respectively, make electrical apparatus with the utility model discloses a connect more firmly, difficult pine takes off.

Specifically, the outer wall of the terminal body 20 is provided with a second clamping groove 2 adapted to the terminal positioning ring 30, the terminal body 20 is provided with an upper first positioning hole groove 3 on the bottom wall of the second clamping groove 2, and the terminal body 20 is provided with more than one second positioning hole groove 4.

Specifically, the terminal positioning ring 30 is provided with a plurality of third positioning protrusions 5 which are matched with the first positioning hole grooves 3 and the second positioning hole grooves 4 and extend inwards.

In this embodiment, the terminal positioning ring 30 is formed by winding a sheet metal part on a mold, a plurality of third positioning clamp protrusions 5 are directly aligned with the first positioning clamp grooves 3 to be loaded, and finally the plurality of third positioning clamp protrusions 5 are bent and clamped into the second positioning clamp grooves 4, so that the terminal positioning ring 30 is automatically assembled, quickly and efficiently.

Specifically, the movable end of each cantilever spring 31 faces the wire connection portion 10.

Specifically, the outer wall of each cantilever spring plate 31 is provided with a reinforcing rib 6.

When in use, the utility model discloses insert the electrical apparatus port, block again on the electrical apparatus port after cantilever shell fragment 31 is pressed the bending, can with the utility model discloses fix on the electrical apparatus port, strengthening rib 6 can strengthen cantilever shell fragment 31's intensity, ensures that the two is difficult for the pine after connecting to take off.

Specifically, the wire connecting portion 10 is integrally formed with the terminal body 20.

Specifically, each slot 1 forms an angle between 0 ° and 30 ° with the axis.

It can be understood that the larger the included angle is, the larger the contact area between the pressed pin fixing portion 22 and the pin is, but the larger the included angle is, the larger the resistance when the pin is inserted is, the larger the required insertion and extraction force is, the easier the pin positioning portion 22 is broken, and the included angle cannot be too large. In the present embodiment, the angle between the slot 1 and the axis is 14 °.

Specifically, the pin positioning portion 22 is provided with a locking buckle 7 integrally formed with the pin positioning portion 22 on both sides of the plurality of cutting grooves 1, and the two locking buckles 7 are not in the same clamping direction.

In order to further strengthen the anti deformability of "shell fragment" on contact pin location portion 22, the utility model discloses both sides at "shell fragment" have all set up the hasp structure to pin the both ends of inserting location portion 22.

In this embodiment, the wiring portion 10 and the terminal body 20 are formed by winding a sheet metal part, two pairs of matched buckle structures are respectively stamped at two narrow side ends of the sheet metal part before winding, and the buckle matching and buckling are mutually tightened during winding.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. A large-current pin-type female terminal wiring terminal is characterized by comprising a U-shaped wiring part and an annular terminal body, wherein a terminal positioning part and a pin positioning part are arranged on the terminal body, and the wiring part is connected with the terminal positioning part; wherein:

2. A high current female terminal according to claim 1, wherein the outer wall of said terminal body is provided with a second engaging groove adapted to said terminal positioning ring, said terminal body is provided with an upper first positioning hole groove on the bottom wall of said second engaging groove, and said terminal body is provided with more than one second positioning hole groove.

3. The high current male female terminal block of claim 2, wherein said terminal retaining ring has a plurality of third retaining tabs adapted to said first and second retaining slots and extending inwardly therefrom.

4. A high current male female terminal as claimed in claim 1, wherein said cantilevered spring has a movable end portion facing said terminal portion.

5. A high current male female terminal as claimed in claim 1, wherein each of said cantilevered leaves has a rib on the outer wall.

6. A high current male female terminal as claimed in claim 1, wherein said terminal portion is integrally formed with said terminal body.

7. A high current female terminal according to any one of claims 1 to 6, wherein each slot is angled from the axis by between 0 ° and 30 °.

8. The large-current pin type female terminal according to claim 7, wherein a locking buckle integrally formed with the pin positioning portion is disposed on the pin positioning portion on both sides of the plurality of slots, and the locking direction of the locking buckles is different.