阅读说明：本技术 一种母型端子及连接器 (Female terminal and connector ) 是由 周骥 王勇刚 于 2020-06-28 设计创作，主要内容包括：本发明提供一种母型端子及连接器,母型端子包括本体和至少一个接触弹片,接触弹片一端电连接于所述本体,另一端上设有插槽,所述插槽在垂直于所述接触弹片的厚度方向的第一方向上的两槽壁分别作为所述接触弹片的一个对插部,两个所述对插部之间围成夹持腔,对插部在所述第一方向上的厚度为第二厚度。由于现有对插部的厚度即为接触弹片的厚度,本发明对插部的第二厚度大于接触弹片的第一厚度,因而对插部厚度大于现有对插部厚度,因悬臂式接触弹片的正向力与其厚度呈正相关,对插部厚度提高,公端子插入插槽后,对插部向公端子施加的正向力增大,提升对插部与接触公端子接触的稳定性,公端子与母型端子插接后信号和电流传输稳定。(The invention provides a female terminal and a connector, wherein the female terminal comprises a body and at least one contact elastic sheet, one end of the contact elastic sheet is electrically connected with the body, the other end of the contact elastic sheet is provided with a slot, two slot walls of the slot in a first direction perpendicular to the thickness direction of the contact elastic sheet are respectively used as opposite insertion parts of the contact elastic sheet, a clamping cavity is enclosed between the two opposite insertion parts, and the thickness of the opposite insertion parts in the first direction is a second thickness. Because the thickness of the existing opposite insertion part is the thickness of the contact elastic sheet, the second thickness of the opposite insertion part is larger than the first thickness of the contact elastic sheet, the thickness of the opposite insertion part is larger than that of the existing opposite insertion part, the thickness of the opposite insertion part is improved because the positive force of the cantilever type contact elastic sheet is positively correlated with the thickness of the cantilever type contact elastic sheet, after the male terminal is inserted into the slot, the positive force applied to the male terminal by the opposite insertion part is increased, the contact stability of the opposite insertion part and the contact male terminal is improved, and the signals and the current transmission are stable after the male terminal and the female terminal are inserted.)

1. A female terminal is characterized by comprising

A body (1);

the contact spring piece (2) is electrically connected with the body (1) at one end, a slot is arranged at the other end, two slot walls of the slot in a first direction perpendicular to the thickness direction of the contact spring piece (2) are respectively used as opposite insertion parts (21) of the contact spring piece (2), and a clamping cavity is defined between the two opposite insertion parts (21);

the thickness of the contact elastic sheet (2) in the thickness direction is a first thickness; the thickness of any inserting part (21) in the first direction is a second thickness; the second thickness is greater than the first thickness.

2. Female terminal according to claim 1, characterized in that the counter-insert (21) is flat; and/or

One end of the contact elastic sheet (2) is detachably fixed on the body (1).

3. Female terminal according to claim 1 or 2, characterized in that the two counter-insertion parts (21) have mutually facing surfaces, respectively a first and a second surface, at least one of said first and second surfaces being provided with at least one arcuate projection (211), said arcuate projection (211) forming said clamping cavity between the surface facing it or the other arcuate projection (211) facing it.

4. Female terminal according to claim 3, characterized in that said first and second surface are provided with said arched projections (211); and/or

At least one of the first surface and the second surface is provided with an inclined surface inclined from outside to inside at the notch of the slot so as to form a guide necking.

5. The female terminal according to any one of claims 1 to 4, wherein the number of the contact spring pieces (2) is at least two, two ends of the slot of any one of the contact spring pieces (2) in the thickness direction are open, all the contact spring pieces (2) are arranged side by side in the thickness direction, and two adjacent contact spring pieces (2) are mutually abutted and the slots are communicated.

6. Female terminal according to claim 5, characterized in that a fixing portion (22) is formed on one end of the contact spring (2), and the contact spring (2) is detachably fixed on the body (1) through the fixing portion (22).

7. Female terminal according to claim 6, characterized in that at least one protrusion (221) is provided on at least one of the two sides of adjacent fixing portions (22) contacting each other, said protrusion (221) abutting adjacent fixing portions (22) to space adjacent mating portions (21) from each other.

8. Female terminal according to claim 6 or 7, characterized in that said fixed part (22) is provided with a first mounting hole; a second mounting hole is formed in the position, corresponding to the first mounting hole, of the body (1);

the fastener (3) penetrates through the first mounting hole and the second mounting hole and then fixes the contact elastic sheet (2) on the body (1).

9. The female terminal as claimed in claim 8, wherein the body (1) is provided with a mounting portion (11) bent at two sides thereof, and the body (1) and the two mounting portions (11) form a concave mounting cavity; the two installation parts (11) are respectively provided with the second installation holes, and all the fixing parts (22) of the contact elastic sheets (2) extend into the installation cavities.

10. A connector comprising the female terminal according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of connectors, in particular to a female terminal and a connector.

Background

The male terminal of the connector is inserted into the jack of the female terminal, and the male terminal and the female terminal form a stable contact interface, so that signal or current transmission between a first subsystem connected with the female terminal and a second subsystem connected with the male terminal is realized.

Chinese patent publication No. CN203942065U discloses a female terminal, which includes a body and two cantilever-type contact spring pieces, wherein the two cantilever-type contact spring pieces are directly and oppositely molded on the body, and a slot is formed between the two contact spring pieces. When the female terminal is manufactured, a thin plate is taken as a body, and then the thin plate is punched, bent and curled to form the female terminal.

Because this female type terminal is integrated into one piece structure, the sheet metal need be punched, bent, curly the design, so the sheet metal thickness is generally thinner, otherwise be difficult to curl the shaping, cantilever type contact shell fragment is bent by some blanking of sheet metal and is formed, its thickness is also thinner, cantilever type contact shell fragment's forward force is positive correlation rather than thickness, cantilever type contact shell fragment thickness is thin, when male terminal inserts in the slot, the positive pressure that cantilever type contact shell fragment provided for the male terminal is less, arouse contact shell fragment and male terminal unstable phenomenon to take place, influence the signal or the current transmission defect after male terminal and female type terminal are pegged graft.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defect that the contact between the female terminal and the male terminal is unstable in the prior art, and the transmission quality of signals or current after the male terminal and the female terminal are plugged is influenced.

To this end, the present invention provides a female terminal comprising

A body;

the contact elastic sheet is provided with a body, a clamping cavity and a clamping groove, wherein one end of the contact elastic sheet is electrically connected with the body, the other end of the contact elastic sheet is provided with the inserting groove, two groove walls of the inserting groove in a first direction perpendicular to the thickness direction of the contact elastic sheet are respectively used as opposite inserting parts of the contact elastic sheet, and the two opposite inserting parts are enclosed to form the clamping cavity;

the thickness of the contact elastic sheet in the thickness direction is a first thickness; the thickness of any inserting part in the first direction is a second thickness; the second thickness is greater than the first thickness.

Optionally, in the female terminal described above, the mating portion is a flat plate; and/or

One end of the contact elastic sheet is detachably fixed on the body.

Optionally, in the above female-type terminal, the surfaces of the two opposite insertion portions facing each other are a first surface and a second surface, respectively, at least one of the first surface and the second surface is provided with at least one arc-shaped protrusion, and the clamping cavity is formed between the arc-shaped protrusion and the surface facing the arc-shaped protrusion or between the arc-shaped protrusion and the other arc-shaped protrusion facing the arc-shaped protrusion.

Optionally, in the female terminal described above, the first surface and the second surface are both provided with the arc-shaped protrusion; and/or

At least one of the first surface and the second surface is provided with an inclined surface inclined from outside to inside at the notch of the slot so as to form a guide necking.

Optionally, in the female terminal, the number of the contact spring pieces is at least two, the two ends of the slot of any one contact spring piece along the thickness direction of the slot are open, all the contact spring pieces are arranged side by side along the thickness direction of the slot, and the two adjacent contact spring pieces are mutually abutted and the slots are communicated.

Optionally, in the female terminal, a fixing portion is formed at one end of the contact spring, and the contact spring is detachably fixed to the body through the fixing portion.

Optionally, in the above female terminal, at least one of two side surfaces of two adjacent fixing portions contacting each other is provided with at least one protruding portion, and the protruding portion abuts against the adjacent fixing portion so as to space the adjacent mating portions from each other.

Optionally, in the female terminal described above, the fixing portion is provided with a first mounting hole; a second mounting hole is formed in the position, corresponding to the first mounting hole, of the body;

the fastener penetrates through the first mounting hole and the second mounting hole and then fixes the contact elastic sheet on the body.

Optionally, in the female terminal, two sides of the body are respectively provided with an installation part in a bent manner, and the body and the two installation parts enclose a concave installation cavity; the two installation parts are respectively provided with the second installation holes, and all the fixing parts of the contact elastic sheets extend into the installation cavity.

The present invention provides a connector including any one of the female terminals described above.

The technical scheme of the invention has the following advantages:

1. according to the female terminal provided by the invention, the thickness of the opposite insertion part in the first direction is taken as the actual thickness of the opposite insertion part, the thickness of the existing opposite insertion part is taken as the thickness of the contact elastic sheet, the second thickness of the opposite insertion part is larger than the first thickness of the contact elastic sheet, so that the thickness of the opposite insertion part is larger than that of the existing opposite insertion part, the thickness of the opposite insertion part is improved because the positive force of the cantilever type contact elastic sheet is positively correlated with the thickness of the opposite insertion part, the positive force applied to the male terminal by the opposite insertion part is increased after the male terminal is inserted into the slot, the contact stability of the opposite insertion part and the contact male terminal is improved, and the signals and the current are stably transmitted after the male terminal is inserted into.

2. Female type terminal's arc arch rather than facing the centre gripping chamber that forms centre gripping male terminal between the arc arch, the male terminal is by the centre gripping between the arc arch, make male terminal become line contact by face contact with first surface and second surface, both area of contact dwindles, under same to portion of inserting thickness and forward force, the male terminal pressurized is powerful, contact spring piece can press from both sides tightly on the male terminal more, effective area of contact between them increases, the centre gripping is more firm reliable, signal or current transmission are more stable.

3. The contact shell fragment of female type terminal is the plate, and it makes the shaping through the direct blanking of copper strips, and simple structure compares that current integrated into one piece's contact shell fragment preparation process is few, and the preparation error is little, and the all-direction size machining precision of contact shell fragment is high. The second thickness can be designed according to the size of the actual required forward force, the size of the forward force can be flexibly adjusted, and larger positive pressure can be provided for the male terminal.

4. A plurality of contact shell fragments of female type terminal are piled up together, and the male terminal inserts behind the slot contact shell fragment and the male terminal contact point is many, and area of contact is big, and contact resistance is little, can bear heavy current. The number of contact shell fragment can be adjusted according to actual current strength, and the electric current is little, reduces the contact shell fragment number, and the electric current is big, increases the contact shell fragment number in order to increase area of contact, can adapt to different current strength, and product adaptability is good.

5. According to the connector provided by the invention, the male terminal is inserted into the slot of the female terminal. The connector of this structure, its female type terminal to inserting portion thickness can design thickly, to inserting the forward force increase that portion applyed to the male terminal, promotes the stability to inserting portion and contact male terminal contact, and signal and current transmission are stable after male terminal and female type terminal are pegged graft.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of a female terminal provided in embodiment 1 of the present invention;

FIG. 2 is a schematic view of a male terminal mated with a female terminal;

FIG. 3 is a front view of a contact spring;

fig. 4 is a schematic view of a plurality of contact spring pieces stacked together;

fig. 5 is a top view of a plurality of contact domes stacked together;

fig. 6 is a schematic view of a contact dome according to a modified embodiment of embodiment 1;

fig. 7 is a schematic view of an opposite insertion portion of a contact spring in another modified embodiment of embodiment 1.

Description of reference numerals:

1-body; 11-a mounting portion; 12-a first presser foot; 13-a second presser foot; 2-contact spring sheet; 21-opposite insertion part; 211-arc shaped protrusions; 22-a fixed part; 221-a projection; 222-a vertical portion; 223-a horizontal portion; 3-a fastener; 4-male terminal.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.