CN216773726U

CN216773726U - Connector and electrical equipment

Info

Publication number: CN216773726U
Application number: CN202123315539.0U
Authority: CN
Inventors: 马増世; 肖岚; 李东林
Original assignee: Shenzhen Top Link Technologies Co Ltd
Current assignee: Shenzhen Top Link Technologies Co Ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-06-17
Anticipated expiration: 2031-12-27

Abstract

The application discloses connector and electrical equipment, wherein, the connector includes: a female end formed with a docking cavity; the male end comprises a contact pin at least partially inserted into the butt joint cavity and a limiting piece arranged on the contact pin, and the limiting piece limits the contact pin in the butt joint cavity; the lantern ring assembly is arranged between the inner wall of the butt joint cavity and the contact pin and comprises a first annular part and a second annular part; the pushing piece is elastically movably arranged on the contact pin along the axial direction of the contact pin; when the pushing piece pushes the lantern ring assembly in a pushing mode and the contact pin is limited in the butt joint cavity, the first annular piece and the second annular piece are mutually abutted and extruded, the first annular piece contracts inwards to be tightly matched with the contact pin, and the second annular piece expands outwards to be tightly matched with the inner wall of the butt joint cavity. The technical scheme of the utility model can improve the current carrying capacity and the current carrying stability of the connector.

Description

Connector and electrical equipment

Technical Field

The utility model relates to the field of connectors, in particular to a connector and electrical equipment.

Background

The high-current connector is used for testing the scenes of high current, instantaneous interruption prevention and high reliability of electrical equipment, and along with the development of the times, the current-carrying capacity of the connector is required to be higher and higher by users.

The connector forms the conductor connecting piece through the mutual grafting cooperation of public end and female end, in the convenient realization inserts female end with public end, the internal diameter of the butt joint chamber of female end is great usually.

The conventional connector structure has the defects that the inner diameter of the butt joint cavity of the female end is larger, a larger gap exists between the female end and the male end, contact points between the female end and the male end are few, contact is unstable, and the current carrying capacity of the connector is weak and current carrying is unstable.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a connector and electrical equipment, and aims to solve the problem that the current carrying capacity of the existing connector is weak and the current carrying is unstable.

To achieve the above object, the present invention provides a wet film module, comprising:

a female end formed with a docking cavity;

a male end comprising a pin configured to be at least partially inserted into the docking cavity;

the limiting piece is arranged on the contact pin and is configured to limit the contact pin in the butt joint cavity;

the lantern ring assembly is arranged between the inner wall of the butt joint cavity and the contact pin and comprises a plurality of annular assemblies, each annular assembly comprises a first annular part and a second annular part, and the first annular part and the second annular part are sleeved on the periphery of the contact pin; and

the pushing piece is elastically movably arranged on the contact pin along the axial direction of the contact pin;

when the abutting part abuts against and pushes the lantern ring assembly and the limit part limits the contact pin in the butt joint cavity, the first annular part and the second annular part are abutted and extruded with each other, the first annular part contracts inwards to be tightly matched with the contact pin, and the second annular part expands outwards to be tightly matched with the inner wall of the butt joint cavity.

In an embodiment, an outer diameter of the second annular member is larger than an outer diameter of the first annular member, and an outer diameter of the pushing member is larger than an inner diameter of the second annular member.

In an embodiment, the first annular member and the second annular member are independent from each other, the first annular member has a first break, and the second annular member has a second break.

In an embodiment, when the collar assembly is pushed by the pushing member, the first fracture is reduced to cause the first annular member to contract inward to be tightly fitted with the pin, and the second fracture is enlarged to cause the second annular member to expand outward to be tightly fitted with the inner wall of the abutting cavity.

In one embodiment, a side of the first ring member facing away from the pin is formed with a first contact inclined surface, a side of the second ring member facing the pin is formed with a second contact inclined surface, and the first contact inclined surface and the second contact inclined surface can abut against each other to form surface contact.

In one embodiment, the first ring and the second ring are alternately arranged along the axial direction of the pin.

In one embodiment, the collar assembly is integrally formed, the collar assembly having a head end and a tail end, the plurality of collar assemblies being connected head to head.

In an embodiment, the butt joint cavity is provided with an opening and a cavity bottom opposite to the opening, when the contact pin is inserted into the butt joint cavity, the front end of the contact pin is closer to the cavity bottom relative to the opening, the limiting part is arranged at the front end of the contact pin, and the collar assembly is arranged between the abutting part and the limiting part.

In one embodiment, the stopper includes:

one end of each limiting column is connected with the corresponding contact pin, the other end of each limiting column extends in the direction far away from the corresponding contact pin, the number of the limiting columns is at least two, and the limiting columns are arranged at intervals along the circumferential direction of the corresponding contact pin; and

the limiting protrusion is arranged on the limiting column, and when the male end is inserted into the butt joint cavity, the limiting protrusion is elastically abutted against the inner wall of the butt joint cavity.

In an embodiment, the butt joint cavity of the female end includes a filling section close to one end of the opening and a limiting section close to one end of the cavity bottom, the filling section and the limiting section are coaxially communicated, the inner diameter of the limiting section is smaller than the inner diameter of the filling section and the maximum outer diameter of the limiting part, the lantern ring assembly is arranged in the filling section, and the limiting part is clamped in the limiting section.

In an embodiment, an annular guide surface is arranged at one end of the limiting section, which is opposite to the cavity bottom, and the annular guide surface is an inclined surface expanding towards the opening direction of the butt joint cavity.

In an embodiment, the male end further includes a positioning element and an elastic element, and the elastic element is sleeved on the pin and located between the positioning element and the pushing element.

In one embodiment, the position of the positioning member is adjustable along the axial direction of the pin.

In one embodiment, one of the inner surface of the positioning member and the outer surface of the insertion pin is provided with an internal thread, and the other one is provided with an external thread matched with the internal thread.

In an embodiment, the positioning element is provided with a stopping portion, and when the connector is installed on an electrical apparatus, the stopping portion is used for connecting and fixing the electrical apparatus.

In one embodiment, the collar assembly is made of copper, aluminum or copper-zinc alloy.

The utility model also provides electrical equipment, which comprises an electrical main body and a connector; the connector comprises a female end, and a butt joint cavity is formed at the female end; a male end comprising a pin configured to be at least partially inserted into the docking cavity; the limiting piece is arranged on the contact pin and is configured to limit the contact pin in the butt joint cavity; the lantern ring assembly is arranged between the inner wall of the butt joint cavity and the contact pin and comprises a plurality of annular assemblies, each annular assembly comprises a first annular part and a second annular part, and the first annular part and the second annular part are sleeved on the periphery of the contact pin; the pushing piece is elastically movably arranged on the contact pin along the axial direction of the contact pin; when the abutting part abuts against the lantern ring assembly and the limit part limits the contact pin in the butt joint cavity, the first annular part and the second annular part abut against and are extruded with each other, the first annular part contracts inwards to be tightly matched with the contact pin, and the second annular part expands outwards to be tightly matched with the inner wall of the butt joint cavity; the connector is mounted on the appliance body.

According to the technical scheme, a limiting part is arranged on a pin at a male end, the pin is limited in a butt joint cavity at a female end, a lantern ring assembly is arranged between the pin and the inner wall of the butt joint cavity, the lantern ring assembly comprises a plurality of annular assemblies, the annular assemblies comprise a first annular part and a second annular part, and finally a pushing part which is elastically movably arranged on the pin along the axial direction of the pin is arranged; when the abutting part abuts against and pushes the sleeve ring assembly and the limit part limits the contact pin in the butt joint cavity, the first annular part and the second annular part abut against and extrude with each other to form a contact, the first annular part contracts inwards to be tightly matched with the contact pin to form a contact, and the second annular part expands outwards to be tightly matched with the inner wall of the butt joint cavity to form a contact; the contact pin, the lantern ring assembly and the female end are combined to form the conductor connecting piece, the radial multi-contact shunt of the contact pin is increased, the current-carrying capacity of the connector is enhanced, meanwhile, the pushing piece elastically pushes the lantern ring assembly to enhance the contact stability of the contact, and the current-carrying stability of the connector is improved.

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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of a connector according to the present invention;

FIG. 2 is a front view of the connector of FIG. 1;

FIG. 3 is a cross-sectional view taken along line A-A of the connector of FIG. 2;

FIG. 4 is an exploded view of the connector of FIG. 1;

FIG. 5 is an enlarged view of the first annular component of FIG. 4;

FIG. 6 is an enlarged view of the second annular component of FIG. 4;

FIG. 7 is a schematic view of another embodiment of the connector of the present invention;

fig. 8 is a schematic structural diagram of another embodiment of the connector of the present invention.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

In addition, the descriptions related to "first", "second", etc. in the present invention are 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 at least one of the feature. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a connector which is used for connecting electrical equipment and can be used for testing requirement scenes of high current, instantaneous interruption prevention and high reliability of the electrical equipment; and the embodiment of the electrical equipment is provided with the connector in any one of the embodiments, and the electrical equipment can be automobile charging piles, aerospace high-current equipment, industrial high-current equipment, vehicle-mounted equipment, base station equipment and the like. Fig. 1 to 7 are corresponding drawings of an embodiment of the present invention.

Referring to fig. 1, 2, 3 and 4, in one embodiment, the connector 100 includes a male end 20, a female end and a collar assembly. The female end 10 is formed with a butt joint cavity 11, the female end 10 may be a conductor structure as a whole, and a cavity is formed inside the female end 10, and the cavity serves as the butt joint cavity 11. The female end 10 may also be a hollow structure, and a conductor inner layer structure is provided inside, and the conductor inner layer structure forms a hollow butt joint cavity 11. The docking chamber 11 has at least one opening for inserting the male end 20 so that the docking chamber 11 is engaged with the male end 20, and a chamber bottom opposite to the opening is provided.

The male end 20 comprises a pin 21, and the pin 21 is configured to be at least partially inserted into the mating cavity 11; the male end 20 further includes a limiting member 22, the limiting member 22 is disposed on the pin 21, and the limiting member 22 is configured to limit the pin 21 in the mating cavity 11.

The lantern ring subassembly is located the inner wall of butt joint chamber 11 with between the contact pin 21, lantern ring subassembly 30 includes a plurality of cyclic annular subassemblies 31, cyclic annular subassembly 31 includes first cyclic annular piece 311 and second cyclic annular piece 312, first cyclic annular piece 311 with second cyclic annular piece 312 cover is established the periphery of contact pin 21.

The male end 20 further comprises an abutting piece, the abutting piece 25 is elastically movably mounted on the pin 21 along the axial direction of the pin 21, and the abutting piece 25 is configured to abut against the collar assembly 30 to move towards the inside of the abutting cavity 11. Before the pushing member 25 pushes the collar assembly 30, a gap is not sufficiently left between the ring assemblies 31, and a gap is also not sufficiently left between the ring assemblies 31 and the inner wall of the docking cavity 11 and the pin 21. When the abutting member 25 abuts against the collar assembly 30 and the pin 21 is limited in the mating cavity 11 by the limiting member 22, the first annular member 311 and the second annular member 312 abut against and are pressed against each other, the first annular member 311 contracts inwards to be tightly fitted with the pin 21, and the second annular member 312 expands outwards to be tightly fitted with the inner wall of the mating cavity 11. When the whole female terminal 10 is a conductor structure, the contact pin 21, the first annular part 311, the second annular part 312 and the female terminal 10 are combined to form a conductor connecting part, and when a conductor inner layer structure is arranged in the female terminal 10, the contact pin 21, the first annular part 311, the second annular part 312 and the conductor inner layer structure of the female terminal 10 form a conductor connecting part.

Since the first annular part 311 and the second annular part 312 can play a role of supporting the pin 21 in the gap between the pin 21 and the mating cavity 11, and the contact of the first annular part 311 and the pin 21, the contact of the second annular part 312 and the inner wall of the mating cavity 11, and the contact of the first annular part 311 and the second annular part 312 are used as contacts, a conductor connecting part is formed, which is helpful for improving the current carrying capacity of the connector 100. The pin 21 is limited in the docking cavity 11 by the limiting member 22, and the contact formed by the first annular member 311 and the second annular member 312 is reinforced by the pushing member 25, so that the contact stability of the contact is enhanced, the stability of the current carrying of the connector 100 is improved, and the stability of the connector 100 in the use process of the electrical equipment is further improved.

Referring to fig. 3 and 4, in an embodiment, the outer diameter of the second annular member 312 is larger than the outer diameter of the first annular member 311, and the outer diameter of the pushing member 25 is larger than the inner diameter of the second annular member 312. So that the pushing member 25 can abut against the first annular member 311 or the second annular member 312, and when pushing, pushing force is uniformly applied to each part of the collar assembly 30, so that the collar assembly 30 moves towards the inside of the docking cavity 11 in a stable manner as a whole.

Referring to fig. 3 and 4, in one embodiment, the first ring member 311 and the second ring member 312 of the collar assembly 30 are independent from each other. Alternatively, the single first annular member 311 and the single second annular member 312 are alternately arranged along the axial direction of the insertion pin 21, or a plurality of first annular members 311 arranged in parallel and a plurality of second annular members 312 arranged in parallel are alternately arranged along the axial direction of the insertion pin 21.

Referring to fig. 3 and fig. 4, in the above embodiment, the first annular component 311 and the second annular component 312 are in surface contact, so as to increase the contact surface of the first annular component 311 and the second annular component 312, and improve the stability of the contact. Considering that when the pushing element 25 pushes the collar assembly 30, it is necessary to provide an axial pushing force to the first annular element 311 and the second annular element 312, so as to move the first annular element 311 and the second annular element 312 toward the inside of the docking cavity 11, and to provide a force in a centripetal direction, so as to make the first annular element 311 contract inward to tightly fit the insert pin 21, and make the second annular element 312 expand outward to tightly fit the inner wall of the docking cavity 11.

In view of this, referring to fig. 3, fig. 5 and fig. 6, in an embodiment, a first contact inclined surface 311a is formed on a side of the first annular member 311 facing away from the pin 21, a second contact inclined surface 312a is formed on a side of the second annular member 312 facing toward the pin 21, and the first contact inclined surface 311a and the second contact inclined surface 312a may abut against each other to form a surface contact. Optionally, the first annular member 311 may be provided with two first inclined contact surfaces 311a at the same time, the two first inclined contact surfaces 311a face the opening and the cavity bottom of the mating cavity respectively during installation, and two second annular members 312 may be provided on the outer periphery of the contact pin 21 to be matched with the first annular member 311. The second annular member 312 may be provided with two second contact inclined surfaces 312a at the same time, the two second contact inclined surfaces 312a face the opening and the cavity bottom of the docking cavity respectively when the docking cavity is mounted, and each second annular member may abut against the two first annular members 311 at the same time to form surface contact. When the pushing member 25 pushes the collar assembly 30 to move towards the inside of the docking cavity 11, the first contact inclined surface 311a of the first annular member 311 abuts against the second contact inclined surface 312a of the second annular member 312 under the action of pushing force, so as to form surface contact, and the stability of the contact point between the first annular member 311 and the second annular member 312 is improved. Meanwhile, the first contact inclined surface 311a makes the first annular member 311 further receive a pressing thrust along a centripetal direction, so that the first annular member 311 is inwardly contracted to be tightly fitted with the contact pin 21, and the stability of the contact point between the first annular member 311 and the contact pin 21 is improved. The second contact inclined surface 312a makes the second annular component 312 further receive an expanding thrust opposite to the centripetal direction, so that the second annular component 312 expands outwards to be tightly matched with the inner wall of the docking cavity 11, and the stability of the contact point of the second annular component 312 and the inner wall of the docking cavity 11 is improved.

With reference to fig. 5 and fig. 6, in the previous embodiment, the first annular member 311 is compressed inward by the extrusion thrust along the centripetal direction, and the second annular member 312 is expanded outward by the expansion thrust opposite to the centripetal direction, but the deformation capabilities of the first annular member 311 and the second annular member 312 are limited, so that the first annular member 311 cannot be tightly fitted with the contact pin 21 after being compressed and/or the second annular member 311 cannot be tightly fitted with the inner wall of the docking cavity after being expanded. In an embodiment, in order to enhance the deformation capability of the collar assembly 30, the first annular member 311 is provided with a first fracture 311b, and the second annular member 312 is provided with a second fracture 312 b. The first annular part 311 and the second annular part 312 are generally C-shaped, the first fracture 311b can form a space for the first annular part 311 to deform, and the second fracture 312b can form a space for the second annular part 312 to deform. When the collar assembly 30 is pushed by the pushing component 25, the first break 311b is reduced to make the first ring-shaped component 311 contract inward to tightly fit with the insertion pin 21, and the second break 312b is enlarged to make the second ring-shaped component 312 expand outward to tightly fit with the inner wall of the mating cavity 11. The first break 311b further improves the contact stability of the first annular part 311 with the pin 21, and the second break 312b further improves the contact stability of the second annular part 312 with the inner wall of the mating cavity 11.

Referring to fig. 7, unlike the previous embodiment, in another embodiment, the collar assembly 30 is integrally formed, the ring assembly 31 has a head end and a tail end, the plurality of ring assemblies 31 are connected at the head end, and the collar assembly 30 is generally spring-shaped as a whole. When the collar assembly is deformed by pushing, the deformation effect is not good due to resistance generated by the collar assembly, and the collar assembly may not be stably contacted with the pin and the inner wall of the butt joint cavity. Optionally, the annular assemblies 31 are integrally formed, and a plurality of the annular assemblies are respectively and independently sleeved on the contact pin, so that deformation resistance is reduced.

A plurality of contacts are formed between the collar assembly 30 and the inner wall of the mating cavity 11 to further enhance the current carrying stability of the connector 100. The contact pin 21 is used for radial multi-contact shunting, has strong current carrying capacity, and can realize current carrying of dozens of amperes to hundreds of amperes. Radial line contact and point contact coexist, the current carrying capacity of a single channel is greatly improved, and the size of a product is reduced. The number of the first ring-shaped members 311 and the second ring-shaped members 312 and/or the length of the collar assembly 30 can be matched appropriately based on the product requirements, so as to achieve the functional diversity of the product.

Referring to fig. 8, in an embodiment, the number of the female terminals 10 is multiple, wherein at least one female terminal 10 is connected to other female terminals 10, the number of the male terminals 20 is multiple, and each female terminal 10 is connected to at least one male terminal 20 to form a parallel connector 100.

Referring to fig. 3 and 4, in an embodiment, the pin 21 has a front end and a rear end that are opposite to each other, when the pin 21 is inserted into the mating cavity 11, the front end of the pin 21 is closer to the cavity bottom relative to the opening, the limiting member 22 is disposed at the front end of the pin 21, and the collar assembly 30 is disposed between the abutting member 25 and the limiting member 22. The limiting member 22 can be connected with the inner wall of the docking cavity 11 in a threaded connection manner, a mutual clamping connection manner, and the like. After the collar assembly 30 and the corresponding pin 21 are inserted into the mating cavity 11, the limiting member 22 is adapted to an inner wall of the mating cavity 11, so that the limiting member 22 blocks the pin 21 from moving to the outside of the mating cavity 11, the limiting member 22 may be a conductor, and the limiting member 22 and the pin 21 may be integrally disposed, so that the limiting member 22 serves as a medium for communicating the inner wall of the mating cavity 11 and the pin 21 to form a contact.

Referring to fig. 3 and 4, in an embodiment, the position-limiting member 22 includes a position-limiting pillar 221 and a position-limiting protrusion 222. One end of each limiting column 221 is connected with the corresponding contact pin 21, the other end of each limiting column 221 extends in the direction away from the corresponding contact pin 21, the number of the limiting columns 221 is at least two, and the limiting columns 221 are arranged at intervals along the circumferential direction of the corresponding contact pin 21; one end of the limiting column 221 is connected with the front end of the inserting pin 21, and the other end protrudes out of the inserting pin 21.

The limiting protrusion 222 is disposed on the limiting post 221, and when the male end 20 is inserted into the docking cavity 11, the limiting protrusion 222 elastically abuts against the inner wall of the docking cavity 11. When the contact pin 21 is located when the outside of butt joint chamber 11, the biggest periphery diameter of the one end of the locating part 22 keeping away from the contact pin 21 is greater than the internal diameter of butt joint chamber 11, when the contact pin 21 is inserted when the butt joint chamber 11, spacing arch 222 is used for the butt joint to be in the inner wall of butt joint chamber 11, spacing post 221 is in produce elastic deformation under the extrusion of the inner wall of butt joint chamber 11, under the effect of elastic force, the locating part 22 with the mutual butt joint of inner wall of butt joint chamber 11 to make contact pin 21 be spacing in the butt joint chamber 11, contact pin 21 can not be along axial displacement.

Referring to fig. 3, when the maximum outer diameter of the limiting member 22 is larger than the inner diameter of the mating cavity 11, an external force is applied to the entire insertion process of the pin 21 into the mating cavity 11, and the insertion depth is not easy to be controlled. In view of this, in an embodiment, the docking cavity 11 of the female end 10 is configured to include a filling section 111 near one end of the opening and a limiting section 112 near one end of the cavity bottom, the filling section 111 and the limiting section 112 are coaxially communicated, an inner diameter of the limiting section 112 is smaller than an inner diameter of the filling section 111 and a maximum outer diameter of the limiting member 22, the collar assembly 30 is disposed in the filling section 111, and the limiting member 22 is snapped in the limiting section 112. The maximum outer diameter of the limiting member 22 is smaller than the inner diameter of the filling section 111 and larger than the inner diameter of the limiting section 112, so that the inserting pin 21 can be inserted into the filling section 111 more easily, and the inserting pin 21 can be limited in the docking cavity 11 only by applying an external force when extending into the limiting section 112. Meanwhile, after the length of the filling section 111 and the clamping position of the limiting piece 22 are fixed, the situation that the inserting depth is not appropriate is avoided.

Referring to fig. 3, further, since the inner diameter of the filling segment 111 is larger than the inner diameter of the limiting segment 112, if the filling segment and the limiting segment are connected at a right angle, the limiting element 22 is easily jammed when the filling segment 111 transits to the limiting segment 112. In one embodiment, in order to make the limiting member 22 more easily transition to the limiting member 22, an end of the limiting segment 112 opposite to the cavity bottom is provided with an annular guiding surface 112a, and the annular guiding surface 112a is an inclined surface expanding towards the opening direction of the abutting cavity. When the limiting member 22 is transited to the limiting section 112, the limiting protrusion 222 of the limiting member 22 can more easily and smoothly slide into the limiting section 112 along the annular guiding surface 112 a.

Referring to fig. 3 and fig. 4, in an embodiment, the male end 20 further includes a positioning element 23 and an elastic element 24, and the elastic element 24 is sleeved on the inserting pin 21 and is located between the positioning element 23 and the pushing element 25. Optionally, the elastic member 24 is an elastically compressible spring, the positioning member 23 is detachably connected to the insertion pin 21, and the positioning member 23 is fixed on the insertion pin 21. During installation, the inserting pin 21 is inserted into the butt joint cavity 11 of the female end 10, the limiting member 22 limits the inserting pin 21 in the butt joint cavity 11, the collar assembly 30, the abutting piece 25 and the elastic piece 24 are sequentially sleeved on the inserting pin 21, and finally the positioning member 23 is fixedly installed on the inserting pin 21, at the moment, the positioning member 23 is fixedly installed at a position where the elastic piece 24 is in a compression elastic state, the elastic piece 24 is in the compression state and provides elastic force to abut against and push the abutting piece 25, so that the abutting piece 25 is driven to abut against and push the collar assembly 30, and installation is completed.

Referring to fig. 3 and 4, unlike the previous embodiment, in the embodiment, considering that the positioning element 23 is fixed on the pin 21 and cannot move, the state of the elastic element 24 is not flexible enough to be adjusted, and is limited by the length of the collar assembly 30, and the position of the positioning element 23 is set to be adjustable along the axial direction of the pin 21. Optionally, one of the inner surface of the positioning element 23 and the outer surface of the insertion pin 21 is provided with an internal thread, the other one is provided with an external thread adapted to the internal thread, and the positioning element 23 moves spirally on the insertion pin 21 through the thread. During installation, the inserting pin 21 is inserted into the butt joint cavity 11 of the female end 10, the limiting member 22 limits the inserting pin 21 in the butt joint cavity 11, the collar assembly 30, the abutting member 25 and the elastic member 24 are sequentially sleeved on the inserting pin 21, and then the positioning member 23 spirally moves on the inserting pin 21, so that the elastic member 24 is in a compressed elastic state, the elastic member 24 is in a compressed state and provides elastic force to abut against the abutting member 25, and the abutting member 25 is driven to abut against the collar assembly 30. When the first annular part 311 and the second annular part 312 of the collar assembly 30 abut against each other and are pressed, the first annular part 311 contracts inwards to be tightly fitted with the insertion pin 21, and the second annular part 312 expands outwards to be tightly fitted with the inner wall of the docking cavity 11, the positioning part 23 stops moving, and the installation is completed.

Referring to fig. 1, in an embodiment, a stopping portion 231 is disposed on the positioning element 23, and when the male end 20 is inserted into the docking cavity 11, the stopping portion 231 is used for being connected and fixed with the electrical equipment. Stopping portion 231 can be a protruding block disposed on positioning member 23, and when connector 100 is installed on an electrical apparatus, stopping portion 231 is connected to the electrical apparatus in a clamping manner, so that positioning member 23 can be kept at a preset position, and then pin 21 is limited.

Considering that the collar assembly 30 needs to have a certain deformation capability to ensure that a certain degree of shrinkage deformation or expansion deformation can occur when the collar assembly is subjected to an external force, the first annular part 311 can be better tightly fitted with the insertion pin 21 and the second annular part 312 can be better tightly fitted with the inner wall of the docking cavity 11. Preferably, in one embodiment, the collar assembly 30 is made of a metal with good deformability, such as copper, aluminum, copper-zinc alloy, and the like.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A connector, characterized in that the connector comprises:

a female end formed with a docking cavity;

when the abutting part abuts against and pushes the sleeve ring assembly and the limit part limits the contact pin in the butt joint cavity, the first annular part and the second annular part are mutually abutted and extruded, the first annular part contracts inwards to be tightly matched with the contact pin, and the second annular part expands outwards to be tightly matched with the inner wall of the butt joint cavity.

2. The connector of claim 1, wherein the second annular member has an outer diameter greater than an outer diameter of the first annular member, and the pushing member has an outer diameter greater than an inner diameter of the second annular member.

3. The connector of claim 2, wherein the first ring member and the second ring member are independent of each other, the first ring member having a first break formed therein and the second ring member having a second break formed therein.

4. The connector of claim 3, wherein when said collar assembly is urged by said urging member, said first discontinuity reduces to cause said first annular member to contract inwardly into tight engagement with said pin, and said second discontinuity expands to cause said second annular member to expand outwardly into tight engagement with an inner wall of said mating cavity.

5. The connector of claim 2, wherein a side of the first ring member facing away from the pin is formed with a first contact slope, a side of the second ring member facing the pin is formed with a second contact slope, and the first contact slope and the second contact slope can abut against each other to form a surface contact.

6. The connector of any one of claims 1 to 5, wherein the first annular member and the second annular member are alternately arranged in an axial direction of the pin.

7. The connector of claim 1, wherein said collar assembly is integrally formed, said ring assembly having a head end and a tail end, said plurality of ring assemblies being connected head to head.

8. The connector according to claim 1, wherein the mating cavity is provided with an opening and a cavity bottom opposite to the opening, when the contact pin is inserted into the mating cavity, the front end of the contact pin is closer to the cavity bottom than to the opening, the limiting member is arranged at the front end of the contact pin, and the collar assembly is arranged between the pushing member and the limiting member.

9. The connector of claim 8, wherein the retainer comprises:

10. The connector of claim 9, wherein the mating cavity of the female end includes a filling section near one end of the opening and a limiting section near one end of the cavity bottom, the filling section and the limiting section are coaxially communicated, an inner diameter of the limiting section is smaller than an inner diameter of the filling section and a maximum outer diameter of the limiting member, the ferrule assembly is disposed in the filling section, and the limiting member is snapped in the limiting section.

11. The connector of claim 10, wherein an end of the retainer segment opposite the cavity bottom is provided with an annular guide surface, and the annular guide surface is a slope expanding toward the opening of the mating cavity.

12. The connector of claim 1, wherein the male end further comprises a positioning element and an elastic element, and the elastic element is sleeved on the pin and is located between the positioning element and the pushing element.

13. The connector of claim 12, wherein the position of the retainer is adjustable in the axial direction of the pin.

14. The connector of claim 13, wherein one of the inner surface of the retainer and the outer surface of the pin is provided with an internal thread and the other is provided with an external thread adapted to the internal thread.

15. The connector of claim 12, wherein the positioning member is provided with a stopping portion, and when the connector is mounted on an electrical device, the stopping portion is used for connecting and fixing the electrical device.

16. The connector of claim 1, wherein the ferrule assembly is made of copper, aluminum or copper-zinc alloy.

17. An electrical device, characterized in that it comprises a connector according to any one of claims 1 to 16.