CN108711696B

CN108711696B - Terminal and connector

Info

Publication number: CN108711696B
Application number: CN201810758414.9A
Authority: CN
Inventors: 邢国坚; 梁朝旭; 陈守彬; 赵欢
Original assignee: Guangdong Linyi New Energy Technology Co ltd
Current assignee: Guangdong Linyi New Energy Technology Co ltd
Priority date: 2018-07-11
Filing date: 2018-07-11
Publication date: 2024-04-19
Anticipated expiration: 2038-07-11
Also published as: CN108711696A

Abstract

The invention discloses a terminal and a connector, the terminal includes: the tail sleeve is provided with a containing cavity and can conduct electricity, an elastic conductive member which gradually protrudes towards the central axis direction of the containing cavity is arranged in the containing cavity, and two ends of the elastic conductive member are close towards the inner wall of the containing cavity relative to the middle part of the elastic conductive member; the bushing is made of conductive materials, the bushing is provided with an inner hollow structure for inserting an external conductive part, the bushing can be disassembled and assembled from the opening of the container, and compared with a traditional terminal, the terminal has the advantages that only part of accessories need to be replaced when the service life is up, the whole terminal does not need to be replaced, the replacement operation mode is simple, and the waste of resources and the replacement cost are reduced. The connector using such a terminal includes: the terminal also comprises an insulating shell with an inner cavity for sleeving the terminal, and a cover cap detachably connected to the insulating shell, wherein the cover cap ensures that the bushing in the terminal cannot fall off, and the connector has strong competitiveness and higher economic value in the market.

Description

Terminal and connector

Technical Field

The present invention relates to a terminal and a connector using the same.

Background

The existing terminals are commonly subjected to the phenomenon that the male end and the female end are severely worn after being plugged for many times, excessive force required by plugging and unplugging can be caused after excessive wear, the male end and the female end are in poor mutual contact, the temperature of the connector is abnormally raised during working, the service life of the overcurrent terminal is greatly reduced under the condition, once the service life expires, the whole wire harness is required to be replaced, the cost is high, the resource utilization rate is low, and the environment-friendly idea advocated by the current society is contradicted.

Disclosure of Invention

The invention aims to solve the technical problems in the prior art and provide a terminal with a detachable and replaceable part and a connector using the terminal, the worn part can be replaced after the terminal is inserted and pulled out, the whole connecting wire harness is not required to be scrapped, the service life of the whole connector product is effectively prolonged, the scrapping cost is reduced, the material utilization rate is improved, and the energy is saved and the environment is protected.

In order to achieve the purpose of the invention, the technical scheme adopted is as follows:

A terminal is designed, which comprises: the tail sleeve is provided with a containing cavity and can conduct electricity, an elastic conductive member which gradually protrudes towards the direction of the central axis of the containing cavity is arranged in the containing cavity, and two ends of the elastic conductive member are close to the inner wall of the containing cavity relative to the middle part of the elastic conductive member; the bushing made of conductive materials is provided with an inner hollow structure for inserting an external conductive component, the bushing can be inserted into or pulled out from the opening of the containing cavity to realize disassembly and assembly, and the bushing can be kept in close contact with the elastic conductive component after being inserted into the containing cavity.

The inner wall of the bushing is provided with a plurality of elastic conductive reeds which are arranged in an axially extending manner, so that the elastic conductive reeds can be kept in close contact when an external conductive component is inserted into the bushing.

The elastic conductive reeds are uniformly distributed on the inner wall of the bushing.

The liner is not fully inserted into the pocket of the boot.

Preferably, the hollow structure of the bushing is a circular through hole or a counter bore, and an included angle exists between the projection of any one of the plurality of elastic conductive reeds on the axial section of the bushing and the axial lead of the bushing.

Preferably, the outer surface of the tail sleeve is provided with a collar and a shaft shoulder, and the collar and the shaft shoulder on the tail sleeve are designed to limit the position of the terminal in the subsequent terminal installation process.

A connector, comprising: an insulating housing for mounting the terminal, the insulating housing being provided with an opening through which a bushing of the terminal is inserted or withdrawn; and a cap detachably connected to the insulating housing to prevent the terminal from sliding out, the cap being made of an insulating material, the cap being provided with an internal hollow structure for the insertion of an external conductive member.

Preferably, the hollow structure of the cap is a circular through hole.

Compared with the prior art, the invention has the advantages that: the part of the terminal, which is contacted with the guide piece on the plug, is designed into a detachable structure, when the service life of the terminal is over, only part of damaged parts need to be replaced, and the replacement mode is simple, so that the situation that the whole terminal needs to be replaced in the prior art is successfully avoided, the resource utilization rate is improved, and the maintenance cost is reduced; connectors using such terminals are also correspondingly more competitive in market competition and of higher economic value.

Drawings

The invention is further described below with reference to the accompanying drawings.

Fig. 1 is a schematic perspective view of a terminal in embodiment 1;

Fig. 2 is a schematic perspective view of the constituent parts of a terminal in embodiment 1;

fig. 3 is a schematic cross-sectional structure of a terminal in embodiment 1;

Fig. 4 is a schematic cross-sectional structure of a connector in embodiment 1;

Fig. 5 is a schematic structural view of a cap in the connector of embodiment 1;

Fig. 6 is a schematic structural view of an insulating housing in the connector of embodiment 1;

fig. 7 is a schematic view showing the overall structure of the straight connector in embodiment 1.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

In the description of the present invention, it should 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured 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 for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The invention will be described in further detail below with reference to the drawings by means of specific embodiments.

Referring to fig. 1-3, a terminal, comprising: the tail sleeve 5 is provided with a containing cavity and can conduct electricity, an elastic conductive member 4 which gradually protrudes towards the direction of the central axis of the containing cavity is arranged in the containing cavity, and two ends of the elastic conductive member 4 are close to the inner wall of the containing cavity relative to the middle part of the elastic conductive member; the bushing 2 made of conductive material has an inner hollow structure for the insertion of the external conductive component, the bushing 2 can be inserted into or pulled out from the opening of the container to realize the disassembly and assembly, and the bushing 2 can be kept in close contact with the elastic conductive member 4 after being inserted into the container.

As an embodiment of the present invention, in the example, the elastic conductive member 4 is in a cylindrical shape as a whole, the circumference of the cylinder is composed of a circle of metal conductive elastic pieces, the elastic pieces are arranged in a structure with the middle part recessed inwards, two ends of each elastic piece are connected with conductive metal rings, each metal ring has a certain elasticity and is not closed, when the elastic conductive member 4 is installed in the containing cavity 5-1 of the tail sleeve 5, the elastic conductive member 4 is extruded towards the opening of the metal rings, so that the elastic conductive member 4 can enter the containing cavity 5-1 of the interior of the tail sleeve through the opening of the tail sleeve 5, when the elastic conductive member 4 does not enter the tail sleeve 5, the extrusion of the elastic conductive member 4 is abandoned, the rest of the elastic conductive member 4 completely enters the tail sleeve 5 through the way of pushing the exposed end of the elastic conductive member 4, the containing cavity 5-1 in the tail sleeve 5 is close to the opening of the tail sleeve 5 and is matched with the elastic conductive member 4, after the elastic conductive member 4 is completely pushed into the tail sleeve 5, the circumference of the tail sleeve 5 is expanded due to the elasticity, so that the elastic conductive member is tightly attached to the containing cavity 5-1 of the tail sleeve 5, and the two ends of the elastic conductive member can be prevented from moving towards the circumference of the protrusion.

In this embodiment, the outer surface of the bushing 2 is a metal conductive cylinder, a plurality of elastic conductive reeds 2-1 are arranged on the inner wall of the bushing 2 in an axially extending manner, the reeds 2-1 are uniformly distributed on the inner wall of the bushing 2, the hollow structure of the bushing 2 is a circular through hole, and an included angle exists between the projection of any elastic conductive reed in the elastic conductive reeds on the axial section of the bushing 2 and the axial lead of the bushing 2. When the external conductive part contacts the terminal, the reed 2-1 is extruded, and the elasticity of the reed 2-1 ensures that the external conductive part contacts the terminal well during operation. The outer diameter of the bushing 2 is adapted to the inner diameter of the opening of the tail sleeve 5, the bushing 2 can enter the tail sleeve 5 from the opening, the end of the bushing 2 entering the tail sleeve 5 completely passes over the elastic conductive member 4 and is blocked by the protruding part inside the tail sleeve 5, and the bushing 2 stops entering the tail sleeve 5, and at the moment, a part of the bushing 2 is still exposed outside the tail sleeve 5.

In this embodiment, the tail sleeve 5 is formed by connecting two cylinders, and the elastic conductive member 4 and the bushing 2 are both positioned in the cylinder with the larger tail sleeve, and the joint of the two cylinders is provided with a protruding collar and a protruding shoulder along the circumference of the cylinder for limiting the integral position of the terminal during installation.

The bushing 2, the elastic conductive member 4 and the tail sleeve 5 are assembled into a complete terminal according to the above-described embodiment, and thus, the portion of the bushing 2 entering the tail sleeve 5 in such a terminal is pressed by the elastic conductive member 4, and cannot easily come out of the tail sleeve 5, the bushing 2 contacts with an external conductive component during use of the terminal, is a damaged portion in the terminal, and when the bushing 2 fails, the bushing 2 can be taken out of the tail sleeve 5 for replacement by using a tool such as a pair of pliers. Compared with the prior art, the service life of the terminal is expired, the whole replaced condition is faced, and the terminal only needs to replace part of components, so that resources are greatly saved.

Referring to fig. 4-7, a connector, comprising: the aforementioned terminals, an insulating housing 3 accommodating the terminals, and a cap 1 connected to the insulating housing.

As an embodiment of the present invention, in the example, the cap 1 is made of an insulator material, and is formed in a ring shape as a whole, and the inner ring diameter length is smaller than the outer diameter length of the bushing 2 in the terminal, so that the bushing 2 in the terminal can be effectively prevented from being separated from the whole connector when the cap 1 is mounted. The hollow circumference surrounded by the inner ring of the cap 1 can enable the external conductive component matched with the connector to pass smoothly.

Fig. 4-7 show a connection mode of the plastic shell and the cap, fig. 5 is a schematic structural view of the cap in the connection mode, and the cap 1 in the example is designed with a fixing boss 1-1 and a wrench clamping position 1-2; fig. 6 is a schematic structural diagram of a connection portion between the insulating housing 3 and the cap 1, and in an example, it can be seen that a cap installation clearance groove 3-1 is designed at the connection portion between the insulating housing 3 and the cap 1, and the cap installation clearance groove is matched with a cap fixing boss interaction groove 3-2, a cap screwing-in clamping boss 3-3 and a cap screwing-out boss clamping boss 3-4.

In assembling such connectors, the terminals are first installed into cavities in the dielectric housing 3 that mate with the terminals, and the protruding collars and shoulders on the tail sleeve 5 in the terminals define the terminals so that they are in place in the cavities of the plastic housing 3. After the terminal is installed, installing the cap 1, aligning the fixing boss 1-1 of the cap 1 with the cap installation clearance groove 3-1 of the insulating shell 3, installing the cap 1, rotating clockwise by a certain angle until the fixing boss 1-1 is matched with the cap fixing boss matching groove 3-2 on the plastic shell 3, and stopping when the cap cannot continue to rotate under the restriction of the clamping boss 3-3, thus completing the installation.

When the bushing 2 in the terminal is replaced, a tool such as a spanner is used for clamping the spanner clamping position 1-2 on the cover cap 1, a certain force is used in the anticlockwise direction, so that the cover cap 1 rotates anticlockwise by a certain angle, and when the fixing boss 1-1 on the cover cap 1 is aligned with the cover cap installation void-avoiding groove 3-1 on the insulating shell 3 and is limited by the cover cap unscrewing clamping position boss 3-4, the cover cap is pulled out. After the cap is pulled out, the tool is used for clamping the part of the bushing 2 which is not installed in the tail sleeve 5, and the bushing 2 can be pulled out by applying force outwards, so that the disassembly is completed. Finally, a new lining 2 is installed from the opening, and the cap 1 is covered.

In the description of the present specification, the descriptions of the terms "one implementation," "some implementations," "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is a further detailed description of the invention in connection with specific embodiments, and it is not intended that the invention be limited to such description. It will be apparent to those skilled in the art that several simple deductions or substitutions can be made without departing from the spirit of the invention.

Claims

1. A connector is characterized by comprising a terminal;

An insulating housing for mounting the terminal, the insulating housing being provided with an opening through which a bushing of the terminal is inserted or withdrawn;

The cover cap is detachably connected to the insulating shell and used for preventing the terminal from sliding out, the cover cap is made of insulating materials, and the cover cap is provided with an inner hollow structure for inserting an external conductive part;

The hollow structure of the cap is a circular through hole; the terminal comprises:

the tail sleeve is provided with a containing cavity and can conduct electricity, an elastic conductive member which gradually protrudes towards the direction of the central axis of the containing cavity is arranged in the containing cavity, and two ends of the elastic conductive member are close to the inner wall of the containing cavity relative to the middle part of the elastic conductive member;

The bushing is made of a conductive material, is provided with an inner hollow structure for inserting an external conductive component, can be inserted into or pulled out from an opening of the containing cavity to realize disassembly and assembly, and can be kept in close contact with the elastic conductive component after being inserted into the containing cavity;

the inner wall of the bushing is provided with a plurality of elastic conductive reeds which are arranged in an extending way along the axial direction of the bushing, and the elastic conductive reeds can be kept in close contact when an external conductive part is inserted into the bushing;

the bushing is not fully inserted into the accommodating cavity of the tail sleeve; the inner hollow structure of the bushing is a circular through hole or a counter bore, and an included angle exists between the projection of any one elastic conductive reed of the plurality of elastic conductive reeds on the axial section of the bushing and the axial lead of the bushing;

the outer surface of the tail sleeve is provided with a shaft collar and a shaft shoulder;

The cover cap is provided with a fixing boss and a spanner clamping position; a cap installation clearance groove is designed at the joint of the insulating shell and the cap, a cap fixing boss matching groove is designed at the joint of the cap screwing-in clamping boss and the cap screwing-out boss clamping position;

When the connector is assembled, the terminal is firstly arranged in an inner cavity matched with the terminal in the insulating shell, and the convex collar and the shaft shoulder on the tail sleeve in the terminal can limit the terminal so that the terminal is positioned in a proper position in the inner cavity of the plastic shell; after the terminal is installed, installing the cap by aligning the fixing boss of the cap with the cap installation void groove of the insulating shell, rotating the cap clockwise by a certain angle until the fixing boss is matched with the cap fixing boss matching groove on the plastic shell, and stopping when the fixing boss is limited by the clamping boss and cannot rotate continuously, thus completing the installation;

When the bushing in the terminal is replaced, a spanner is used for clamping a spanner clamping position on the cover cap, a certain force is used in the anticlockwise direction, so that the cover cap rotates anticlockwise by a certain angle, and when a fixing boss on the cover cap is aligned with a cover cap installation clearance groove on the insulating shell and is limited by the cover cap unscrewing clamping position boss, the cover cap is pulled out; after the cap is pulled out, the tool is used for clamping the part of the bushing, which is not assembled into the tail sleeve, and the bushing can be pulled out by applying force outwards, so that the disassembly is completed; finally, a new bushing is installed from the opening of the insulating shell, and the cap is covered.

2. A connector as defined in claim 1, wherein: