CN217507728U

CN217507728U - Sheet type double-layer structure terminal and connector thereof

Info

Publication number: CN217507728U
Application number: CN202221786547.5U
Authority: CN
Inventors: 翟世伟; 王国堂; 王永安; 张红娟; 夏友卿
Original assignee: Henan THB Electric Co Ltd
Current assignee: Henan THB Electric Co Ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-09-27
Anticipated expiration: 2032-07-12

Abstract

The utility model discloses a sheet-like bilayer structure terminal and connector thereof has solved among the prior art terminal with high costs and the not enough scheduling problem of current-carrying capacity. The sheet type double-layer structure terminal of the utility model comprises two outer conductive layer bodies and an inner conductive layer body, wherein the two outer conductive layer bodies and the inner conductive layer body form a double-opening installation cavity in a hanging and welding mode, and the outer conductive layer bodies are provided with elastic wings and outer contact cantilevers which are arranged in a staggered mode; an inner contact cantilever is arranged on the inner conductive layer body, the elastic fin is pressed on the inner contact cantilever, and the contact on the outer contact cantilever and the contact on the inner contact cantilever are arranged in a staggered manner. The utility model adopts the sheet type double-layer structure terminal, the whole structure is simple, the cost is low, the contact points are dense and independent, and the current-carrying capacity is strong; the terminal contact adopts the peak staggering design, so that the terminal insertion and extraction force is effectively reduced; the chip type double-layer structure terminal and the copper bar can be transversely and longitudinally inserted, and the use is convenient.

Description

Sheet type double-layer structure terminal and connector thereof

Technical Field

The utility model relates to a terminal technical field especially indicates a piece formula bilayer structure terminal and connector thereof.

Background

With the development of the new energy automobile industry, the automobile has higher requirements on the current-carrying capacity of the connector. The design of the terminal, which is the core component of the connector, and the choice of material, will directly affect the current carrying capacity and the service life of the connector. The existing terminal structure often has the problems of poor current-carrying capacity, overlarge insertion and extraction force and the like. However, in the prior art, such as a double-layer multi-contact terminal, a conductive terminal and a connector with the publication number of CN 215645100U, the conductive capability is improved to a certain extent, but the structure form is single, and the copper bar can be inserted and pulled out only from one end, which is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

To not enough among the above-mentioned background art, the utility model provides a sheet-like bilayer structure terminal and connector thereof has solved among the prior art problem that terminal and copper bar cooperation plug are inconvenient, current-carrying capacity is weak.

The technical scheme of the utility model is realized like this: a chip type double-layer structure terminal comprises two outer conductive layer bodies and an inner conductive layer body, wherein the two outer conductive layer bodies and the inner conductive layer body form a double-opening installation cavity in a hanging and welding mode, and elastic fins and outer contact cantilevers which are arranged in a staggered mode are arranged on the outer conductive layer bodies; an inner contact cantilever is arranged on the inner conductive layer body, the elastic fin is pressed on the inner contact cantilever, and the contact on the outer contact cantilever and the contact on the inner contact cantilever are arranged in a staggered manner.

Further, the outer conductive layer body comprises a U-shaped base plate, the two ends of the U-shaped base plate are respectively provided with an integrally formed elastic wing and an outer contact cantilever, the elastic wings are tilted towards the inner direction of the U-shaped base plate, the outer contact cantilevers are bent towards the inner direction of the U-shaped base plate, and the elastic wings are positioned between every two adjacent outer contact cantilevers.

Furthermore, the side wall of the U-shaped base plate is provided with an inward-bent riveting hook which is matched with a bayonet arranged on the inner conductive layer body.

Furthermore, the side walls of the U-shaped base plates are also provided with tiger mouths, and the tiger mouths on the two U-shaped base plates correspond to form inserting ports. Preferably, the width of the outer contact cantilever is gradually narrowed along the length direction to form a trapezoidal cantilever structure.

Furthermore, the outer conductive layer body and the inner conductive layer body are both copper alloy plate bodies, a convex elastic contact A is arranged on the outer contact cantilever, and a concave elastic contact B is arranged on the inner contact cantilever.

Further, the inner conductive layer body comprises two substrate plates which are oppositely arranged, two sides of the two substrate plates are connected through a support plate, and a bayonet is arranged on the support plate; the inner contact cantilevers on the two base plates are arranged oppositely.

Furthermore, the two ends of each base plate are provided with inner contact cantilevers arranged in rows, and the inner contact cantilevers and the base plates are integrally formed. Preferably, the width of the inner contact cantilever is gradually narrowed along the length direction to form a trapezoidal cantilever structure.

The connector comprises a chip type double-layer structure terminal, wherein the chip type double-layer structure terminal can be matched and connected with an insulating shell.

The utility model adopts the sheet type double-layer structure terminal, the whole structure is simple, the cost is low, the contact points are dense and independent, and the current-carrying capacity is strong; the terminal contact adopts a peak staggering design, so that the terminal insertion and extraction force is effectively reduced; the chip type double-layer structure terminal and the copper bar can be transversely and longitudinally inserted, and the use is convenient. The connector adopting the terminal is reliable in connection mode, convenient to insert and pull, capable of effectively improving the current carrying capacity and service life of the connector, and high in practicability and market value.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive work.

Fig. 1 is an explosion diagram of the chip-type double-layer terminal of the present invention.

Fig. 2 is a schematic view of the connection state between the outer conductive layer and the inner conductive layer of the present invention.

Fig. 3 is a schematic view showing the alternate arrangement of the elastic contacts of the inner and outer conductive layers.

Fig. 4 is a schematic view of the cantilever support state of the inner contact of the spring fin.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 and 2, in embodiment 1, a chip-type terminal with a double-layer structure includes two outer conductive layers 1 and one inner conductive layer 2, where the number of the outer conductive layers is 2, and the outer conductive layers are distributed and fixed on the outer side of the inner conductive layer. Two outer conductive layer body 1 fixed connection form with the two open-end installation cavity of inner conductive layer body 2 crimping complex, two outer conductive layer body 1 are fixed on the inner conductive layer through the mode of riveting and spot welding in this embodiment. Namely, two outer conductive layer bodies 1 and an inner conductive layer body 2 form a double-opening installation cavity in a hanging and welding mode, and elastic fins 3 and outer contact cantilevers 4 which are arranged in a staggered mode are arranged on the outer conductive layer bodies 1; the inner conductive layer body 2 is provided with an inner contact cantilever 5, the elastic fin 3 is in compression joint with the inner contact cantilever 5 to provide certain supporting force, a double-layer multi-contact structure is formed, namely, dense contact points are formed in a certain space, and therefore the conductive capacity is enhanced. The contact on the outer contact cantilever 4 and the contact on the inner contact cantilever 5 are arranged in a staggered manner, namely, the contacts on the inner and outer conductive layer bodies are not on a horizontal line, when the copper bar is inserted oppositely, the contact of the inner conductive layer is contacted after the copper bar rubs for a certain distance, the outer conductive layer is contacted, and the terminal plugging force can be effectively reduced by the staggered peak design. A plurality of elastic conductive contacts are uniformly arranged at two ends of the inner and outer conductive layer bodies, and form independent conductive paths after being contacted with the oppositely-inserted copper bars, and the oppositely-inserted copper bars can be arranged at two ends of the terminals, so that the use is more convenient.

As shown in fig. 3, in embodiment 2, based on embodiment 1, the outer conductive layer 1 includes a U-shaped base plate 101, and the two ends of the U-shaped base plate 101 are respectively provided with an integrally formed elastic fin 3 and an outer contact cantilever 4, so as to form a dual plug terminal structure. The two ends of the double-plug terminal structure are fully distributed with elastic contacts with inner and outer conducting layers which are staggered, and the contacts are mutually independent. Both ends of the terminal can be oppositely inserted and conducted with the copper bar. Specifically, the spring fin 3 and the outer contact cantilever 4 are punched to form a spring sheet form. The elastic fins 3 are tilted toward the inside of the U-shaped base plate 101 and are used for pressing the inner contact cantilevers 5 to provide elastic support for the inner contact cantilevers so as to ensure enough contact force. The outer contact cantilevers 4 are bent towards the inner direction of the U-shaped base plate 101, the elastic fins 3 are located between every two adjacent outer contact cantilevers 4, the contact points of the outer contact cantilevers 4 and the contact points on the inner contact cantilevers 5 are arranged in a staggered mode, the plugging force is soft, and the customer satisfaction degree is favorably improved.

In this embodiment, the sidewall of the U-shaped base plate 101 is provided with an inward-bent riveting hook 102, and the riveting hook 102 is matched with a bayonet 202 arranged on the inner conductive layer body 2 to form a clamping structure. When the outer conductive layer body 1 and the inner conductive layer body 2 are assembled, the functions of quick positioning and stable connection are achieved; and after the positioning is finished, welding and fixing are carried out.

In this embodiment, the side wall of the U-shaped base plate 101 is further provided with a tiger's mouth 103, the tiger's mouths 103 on the two U-shaped base plates 101 correspond to form a plug-in interface 6, the plug-in interface 6 is a U-shaped notch, the structure is suitable for two opposite plug-in modes of horizontal and vertical copper bars, and the terminals can be flexibly arranged in the connector.

Preferably, the width of the outer contact cantilever 4 is gradually narrowed along the length direction to form a trapezoidal cantilever structure. Namely, the width of the outer contact cantilever 4 is changed, the width of the root of the cantilever is the largest, and the width of the root of the cantilever is gradually reduced along the length direction, so that the proper insertion and extraction force is ensured.

As shown in fig. 4, in embodiment 3, based on embodiment 2, the outer conductive layer 1 and the inner conductive layer 2 are both copper alloy plates, which specifically include: the outer layer is made of copper alloy with good mechanical property and electrical property, and elastic contact points are designed at two ends of the outer layer, so that the outer layer has an independent current-carrying function. The inner layer is made of high-conductivity copper alloy, the conductivity is high, the current-carrying capacity is high, but the mechanical property is relatively weak, so that the elastic fins are designed on the outer layer to provide elastic support for the inner layer, and sufficient contact force is ensured. The outer contact cantilever 4 is provided with a convex elastic contact A, the inner contact cantilever 5 is provided with a concave elastic contact B, the elastic contact A and the elastic contact B are positioned at the socket 6, and intensive contact points are formed in a certain space, so that the conductive capacity is enhanced.

In this embodiment, the inner conductive layer 2 includes two base plates 201 disposed oppositely, and two sides of the two base plates 201 are connected through a supporting plate 203; the support plate 203 is stamped and formed with the two base plates 201 into a unitary structure. The support plate 203 is provided with a bayonet 202 which is convenient to rivet with the riveting hook 102 on the side wall of the U-shaped base plate 101; the inner contact cantilevers 5 on the two base plates 201 are arranged oppositely, that is, the inner contact cantilevers 5 on the upper and lower base plates 201 correspond to each other one by one to form an elastic contact pair.

Both ends of every base plate 201 all are equipped with the inner contact cantilever 5 that the row set up as preferred scheme, control both ends promptly and all be equipped with corresponding inner contact cantilever 5, and inner contact cantilever 5 sets up with base plate 201 integrated into one piece. The two base plates are matched to form a double-plug terminal structure. The contacts of the inner conductive layer bodies are distributed at the two ends of the double-plug terminal structure and are independent from each other, and the two ends of the terminal can be oppositely inserted and conducted with the copper bar.

Preferably, the width of the inner contact cantilever 5 is gradually narrowed along the length direction, so as to form a trapezoidal cantilever structure. That is, the width of the inner contact cantilever 5 is changed, the width of the root of the cantilever is the largest, and the width of the root of the cantilever is gradually reduced along the length direction, so that the proper insertion and extraction force is ensured.

Example 4: a connector comprising the chip type double-layer terminal according to

embodiment

2 or 3, wherein the chip type double-layer terminal is fittingly connectable with an insulating housing. Namely, the sheet type double-layer structure terminal is connected with an insulating shell. After the inner conducting layer is punched and formed, the two outer conducting layers are fixed on the outer side of the inner conducting layer in a riveting and welding mode, the whole structure is simple, the cost is low, the contact points are dense and mutually independent, the current carrying capacity is high, and the connection is reliable.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A piece formula bilayer structure terminal which characterized in that: the conductive contact structure comprises two outer conductive layer bodies (1) and an inner conductive layer body (2), wherein the two outer conductive layer bodies (1) and the inner conductive layer body (2) form a double-opening installation cavity in a hanging and welding mode, and elastic fins (3) and outer contact cantilevers (4) which are arranged in a staggered mode are arranged on the outer conductive layer bodies (1); an inner contact cantilever (5) is arranged on the inner conductive layer body (2), the elastic fin (3) is in compression joint with the inner contact cantilever (5), and contacts on the outer contact cantilever (4) and contacts on the inner contact cantilever (5) are arranged in a staggered manner.

2. The chip double-layer structure terminal according to claim 1, wherein: the outer conductive layer body (1) comprises a U-shaped base plate (101), the two ends of the U-shaped base plate (101) are respectively provided with an integrally formed elastic wing (3) and an outer contact cantilever (4), the elastic wing (3) tilts towards the inner direction of the U-shaped base plate (101), the outer contact cantilever (4) bends towards the inner direction of the U-shaped base plate (101), and the elastic wing (3) is located between two adjacent outer contact cantilevers (4).

3. The chip double-layer structure terminal according to claim 2, wherein: the side wall of the U-shaped base plate (101) is provided with an inward-bent riveting hook (102), and the riveting hook (102) is matched with a bayonet (202) arranged on the inner conductive layer body (2).

4. The chip double-layer structure terminal according to claim 2 or 3, wherein: and the side walls of the U-shaped base plates (101) are also provided with tiger mouths (103), and the tiger mouths (103) on the two U-shaped base plates (101) correspondingly form a bayonet (6).

5. The chip double-layer structure terminal according to claim 4, wherein: the width of the outer contact cantilever (4) is gradually narrowed along the length direction to form a trapezoidal cantilever structure.

6. The chip double-layer structure terminal according to any one of claims 1 to 3 and 5, wherein: the outer conductive layer body (1) and the inner conductive layer body (2) are both copper alloy plate bodies, a convex elastic contact A is arranged on the outer contact cantilever (4), and a concave elastic contact B is arranged on the inner contact cantilever (5).

7. The chip double-layer structure terminal according to claim 6, wherein: the inner conductive layer body (2) comprises two base body plates (201) which are oppositely arranged, two sides of the two base body plates (201) are connected through a supporting plate (203), and a bayonet (202) is arranged on the supporting plate (203); the inner contact cantilevers (5) on the two base plates (201) are arranged oppositely.

8. The chip double-layer structure terminal according to claim 7, wherein: the two ends of each base plate (201) are provided with inner contact cantilevers (5) arranged in rows, and the inner contact cantilevers (5) and the base plates (201) are integrally formed.

9. The chip double-layer structure terminal according to claim 8, wherein: the width of the inner contact cantilever (5) is gradually narrowed along the length direction to form a trapezoidal cantilever structure.

10. A connector, characterized by: the terminal comprises the chip type double-layer structure terminal as claimed in any one of claims 1 to 9, which is fittingly connected with an insulating housing.