CN213340795U

CN213340795U - Female terminal, male terminal and connector

Info

Publication number: CN213340795U
Application number: CN202022505444.4U
Authority: CN
Inventors: 盛鸿垚
Original assignee: Suzhou Recodeal Interconnect System Co ltd
Current assignee: Suzhou Recodeal Interconnect System Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-06-01
Anticipated expiration: 2030-11-03

Abstract

The utility model provides a female terminal, male terminal and connector, female terminal includes the sleeve and holds reed, elastic component and the contact in the sleeve, telescopic one end is sealed, and an opening has been seted up to the other end, the one end of elastic component with sleeve blind end butt, the other end of elastic component with the contact butt, the contact includes first end and second end, the first end orientation telescopic blind end extend and with the reed contact, the second end is greater than the opening and make the contact hold all the time in the sleeve, the contact can remove in the sleeve. The floatable contact element is adopted, so that the contact reliability of the contact element and the sleeve is improved, and the electric conductivity of the contact element and the sleeve is ensured. When the terminal is matched with the male terminal, the floatable end surface contact of the male terminal and the female terminal is realized through the annular elastic piece, the end surface contact reliability is effectively improved, the structure is simple, the occupied space is small, and the electric conduction performance is stable and reliable.

Description

Female terminal, male terminal and connector

Technical Field

The utility model relates to an electric automobile technical field, concretely relates to female terminal, male terminal and connector suitable for high-power end face contact.

Background

The electric automobile uses the vehicle-mounted power supply as power, and the wheel that uses motor drive electric automobile rotates, and then drives electric automobile and traveles, along with electric automobile's vehicle-mounted power supply constantly develops, also shows gradually with high-power demand of changing of charging. At present, the electric connection device that charges that electric automobile often adopted is mostly radial contact or end face contact, and end face contact adopts the hard contact of terminal surface rigidity more, and the terminal surface wearing and tearing, the condition such as slight rocking all can influence its contact tightness, lead to the contact unstable, influence electric conductive property, and then influence vehicle power's use. Further, the end face contact of the terminal is often made by metal pad contact, but there are problems that arcing is likely to occur by metal pad contact, surface oxidation contact failure, contact pressure force is large, and the surface of the metal pad is likely to be deteriorated after long-term use. In addition, in many cases, due to the limitation of the matching space, the radial pin jack matching terminal occupying a large plugging space cannot be used.

In view of the above, it is desirable to provide a female terminal, a male terminal and a connector suitable for high power end face contact, which are improved over the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the technical problem that above-mentioned prior art exists, provide a female terminal, male terminal and connector suitable for high-power end face contaction, the utility model discloses a terminal structure adopts end face contaction's form to but through floating contact piece increase contact reliability, solved the above-mentioned technical problem that terminal structure among the prior art exists.

In order to solve the technical problem in the background art, the utility model discloses a technical scheme be: the utility model provides a female terminal, includes sleeve, reed, elastic component and contact, reed, elastic component and the contact holds in the sleeve, telescopic one end is sealed, and an opening has been seted up to the other end, the one end of elastic component with sleeve closed end butt, the other end of elastic component with the contact butt, the contact can move in the sleeve, the contact include first end and with the second end that first end is relative, first end orientation telescopic closed end extend and with the reed contact, the second end is greater than the opening makes the contact hold all the time in the sleeve, second end terminal surface is used for contacting with public terminal.

Further, the second end face of the contact is flush with the opening.

Further, the second end face of the contact piece protrudes from the opening by 0.5-1 mm.

Further, the sleeve includes barrel and shell, first holding chamber has in the barrel, the one end of barrel is sealed, and the cover is equipped with on the other end outer wall the shell, the shell is kept away from one side of barrel blind end has been seted up the opening, the shell with form second holding chamber between the barrel, the one end in second holding chamber with first holding chamber intercommunication, the other end in second holding chamber passes through the opening with the outside intercommunication of sleeve.

Further, the shell and the outer wall of the barrel are in interference fit.

Furthermore, the reed has elasticity, the reed is arranged on the inner wall of the first accommodating cavity, the middle part of the reed protrudes from the inner wall of the first accommodating cavity to the inner part of the first accommodating cavity, and the side wall of the contact element is abutted against the reed.

Further, the first end of the contact element is accommodated in the first accommodating cavity, the second end of the contact element is accommodated in the second accommodating cavity, and the contact element can move in the first accommodating cavity and the second accommodating cavity.

Furthermore, the edge of the opening is provided with an extending part facing the center of the opening, a limiting bulge is arranged on the outer wall of the second end of the contact element, and the limiting bulge is abutted against the extending part, so that the contact element is limited in the sleeve.

Furthermore, the elastic part is accommodated in the second accommodating cavity, the elastic part is a spring, the spring surrounds the outer side of the contact part, one end of the spring is abutted against the cylinder, and the other end of the spring is abutted against the second end of the contact part.

Furthermore, an annular clamping groove is formed in the outer wall of one end, close to the second accommodating cavity, of the barrel, and one end, abutted to the barrel, of the spring is located in the annular clamping groove and abutted to the bottom of the annular clamping groove.

Further, the sleeve is cylindrical, and the sleeve comprises a plurality of sections of cylinders with different outer diameters.

Further, the sleeve comprises a cylindrical top end, and the cylindrical top end is arranged on one side, far away from the opening, of the closed end of the sleeve.

Further, be equipped with the flange portion that is used for spacingly on the outer wall of shell, preferably, the flange portion has a plurality of spacing faces, and when the installation female terminal, a plurality of spacing faces can form limit structure with other accessories butt in the installation environment, fixes the position of female terminal prevents female terminal takes place unnecessary the rotation. Preferably, the flange portion has a polygonal prism structure.

By adopting the structure, the contact member is in contact with the reed in the cylinder to realize the connection with the cylinder, and the elastic force of the elastic member ensures that the contact member can move in the cylinder, no matter the contact end surface is worn or shakes under the bumpy environment, the contact member can automatically float under the elastic force of the elastic member, and always keeps in close contact with the reed, so that the contact reliability is improved, the contact member is in good contact with the cylinder, and the conductive performance of the contact member is ensured.

The utility model also provides a male terminal, male terminal has the connecting portion that are used for being connected with above-mentioned female terminal, connecting portion with one side that the second end terminal surface of contact is relative is equipped with the annular groove, be equipped with in the annular groove be used for with the annular elastic component of second end terminal surface contact.

Further, the annular elastic member is an annular spring.

By adopting the structure, the male terminal is in floating end face contact with the female terminal by arranging the annular elastic piece on the male terminal, so that the end face contact reliability is effectively improved, and the problems of arc discharge, poor surface oxidation contact, large contact pressure force, easy aging of the surface of the metal pad in long-term use and the like caused by end face contact of the metal pad in the prior art are solved.

The utility model also provides a connector, connector includes foretell female terminal and male terminal, the male terminal passes through annular elastic component with the female terminal contact the second end terminal surface looks butt.

The connector provided by the utility model adopts the end face contact mode, the female terminal adopts the floatable contact element, and the contact element can automatically float under the elasticity of the elastic element no matter the contact end face is worn or is shaken under the bumpy environment, so that the contact reliability is increased, the contact between the contact element and the sleeve is good, and the electric conductivity of the contact element is ensured; the male terminal realizes the floating end face contact of the male terminal and the female terminal through the annular elastic piece, the end face contact reliability is effectively improved, the stability of electric connection is improved, the problems of arc discharge, poor surface oxidation contact, large contact pressure force, easy aging of the surface of the metal pad after long-term use and the like caused by the end face contact of the metal pad in the prior art are solved, and the electric conduction terminal is simple in structure, small in occupied space and stable and reliable in electric conduction performance.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed for 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 only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a female terminal according to an embodiment of the present invention;

fig. 2 is a front view of a female terminal according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 4 is a schematic structural diagram of a male terminal according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a connector according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view taken in the direction B-B in FIG. 5;

wherein the reference numerals in the figures correspond to: 1-female terminal, 11-barrel, 111-first accommodating cavity, 112-annular clamping groove, 113-cylindrical top end, 12-shell, 121-second accommodating cavity, 122-opening, 123-extending part, 124-flange part, 13-reed, 14-elastic part, 15-contact part, 151-first end, 152-second end, 153-limiting protrusion, 2-male terminal, 21-connecting part and 211-annular elastic part.

Detailed Description

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

Example (b):

the embodiment of the present invention provides a female terminal suitable for high-power end face contact, as shown in fig. 1, fig. 2 and fig. 3, the female terminal 1 includes a sleeve, a spring 13, an elastic member 14 and a contact member 15, the spring 13, the elastic member 14 and the contact member 15 are accommodated in the sleeve, one end of the sleeve is closed, the other end of the sleeve is opened with an opening 122, one end of the elastic member 14 abuts against the closed end of the sleeve, the other end of the elastic member 14 abuts against the contact member 15, the contact member 15 can move in the sleeve, the contact member 15 includes a first end 151 and a second end 152 opposite to the first end 151, the first end 151 extends toward the closed end of the sleeve and contacts with the spring 13, the second end 152 is larger than the opening 122 so that the contact member 15 is always accommodated in the sleeve, the second end 152 is adapted to be in end contact with the male terminal 2. Preferably, the end face of the second end 152 of the contact 15 protrudes from the opening 122 by a height of 0.5-1 mm. In other embodiments, the second end 152 of the contact 15 may be flush with the opening 122.

Preferably, in this embodiment, the edge of the opening 122 has an extension 123 facing the center of the opening 122, and a limiting protrusion 153 is disposed on the outer wall of the second end 152 of the contact element 15, and the limiting protrusion 153 abuts against the extension 123, so as to limit the contact element 15 in the sleeve. Of course, the opening 122 and the contact element 15 may also adopt other limiting structures, and the contact element 15 may be limited in the sleeve, which is not limited too much here.

In this embodiment, the sleeve includes barrel 11 and shell 12, first holding chamber 111 has in the barrel 11, the one end of barrel 11 is sealed, and the cover is equipped with on the other end outer wall shell 12, shell 12 is kept away from one side of barrel 11 blind end has been seted up opening 122, shell 12 with form second holding chamber 121 between the barrel 11, the one end in second holding chamber 121 with first holding chamber 111 intercommunication, the other end in second holding chamber 121 pass through opening 122 with the outside intercommunication of sleeve.

In a possible embodiment, the housing 12 and the cylinder 11 may be connected by a screw connection, a rivet connection, or the like. Preferably, in this embodiment, the outer shell 12 and the outer wall of the cylinder 11 are in interference fit, when assembling, the contact element 15 and the elastic element 14 are placed in the outer shell 12, then the end of the opening 122 of the cylinder 11 with the spring 13 is inserted into the outer shell 12, so that the elastic element 14 abuts against the cylinder 11, the contact element 15 extends into the cylinder 11 and contacts with the spring 13, and finally the joint between the outer shell 12 and the outer wall of the cylinder 11 is pressed, so as to realize the interference fit connection between the outer shell 12 and the outer wall of the cylinder 11, thereby omitting complex processes such as threads and riveting, and being convenient to assemble.

In this embodiment, the spring plate 13 has elasticity, the spring plate 13 is disposed on the inner wall of the first accommodating cavity 111, the middle portion of the spring plate 13 protrudes from the inner wall of the first accommodating cavity 111 into the first accommodating cavity 111, and the side wall of the contact member 15 abuts against the spring plate 13.

The first end 151 of the contact member 15 is received in the first receiving cavity 111, the second end 152 of the contact member 15 is received in the second receiving cavity 121, and the contact member 15 is movable in the first receiving cavity 111 and the second receiving cavity 121.

The elastic member 14 is accommodated in the second accommodating cavity 121, and preferably, the elastic member 14 is a spring, the spring surrounds the contact member 15, one end of the spring abuts against the cylinder 11, and the other end of the spring abuts against the second end 152 of the contact member 15.

In a possible embodiment, an annular clamping groove 112 is formed in an outer wall of one end of the cylinder 11 close to the second accommodating cavity 121, and one end of the spring abutting against the cylinder 11 is located in the annular clamping groove 112 and abuts against a bottom of the annular clamping groove 112.

In a possible embodiment, the sleeve is cylindrical and comprises a plurality of cylinders with different outer diameters. Preferably, the sleeve includes a cylindrical top end 113, and the cylindrical top end 113 is disposed on a side of the closed end of the sleeve away from the opening 122.

In a possible embodiment, a flange portion 124 for limiting is provided on an outer wall of the housing 12, and preferably, the flange portion 124 has a plurality of limiting surfaces, and when the female terminal 1 is mounted, the plurality of limiting surfaces can abut against other accessories in a mounting environment to form a limiting structure, so as to fix a position of the female terminal 1 and prevent the female terminal 1 from rotating unnecessarily. Preferably, the flange portion 124 is a multi-faceted prism structure.

Adopt above-mentioned structure, contact 15 through with reed 13 contact in the barrel realize with the barrel is connected, just the elasticity of elastic component 14 makes contact 15 can move in telescopic barrel, no matter contact surface wearing and tearing or rock under the jolt environment, contact 15 can both be in automatic floating under the elasticity of elastic component 14, remain throughout with reed 13's in close contact has increased the contact reliability, thereby makes contact 15 with the barrel contact is good, guarantees its electric conductive property.

The embodiment of the utility model provides a still provide a male terminal, as shown in fig. 4, fig. 5 and fig. 6, male terminal 2 has the connecting portion 21 that is used for being connected with above-mentioned female terminal 1, connecting portion 21 with one side that the second end 152 terminal surface of contact 15 is relative is equipped with the annular groove, be equipped with in the annular groove be used for with the annular elastic component 211 of second end 152 end face contact. Preferably, the annular elastic member 211 is an annular spring. The floatable end surface contact of the male terminal 2 and the female terminal 1 is realized by arranging the annular elastic piece 211 on the male terminal 2, the end surface contact reliability is effectively increased, the stability of electric connection is improved, the problems of arc discharge, poor surface oxidation contact, large contact pressing force, easy aging of the surface of a metal pad in long-term use and the like caused by the end surface contact of the metal pad in the prior art are solved, and the problem that the radial pin jack type terminal cannot be used due to the limitation of an interworking space is effectively solved by using the terminal with the effective end surface contact.

The embodiment of the utility model provides a still provide a connector, as shown in fig. 5, fig. 6, the connector is applied to on the electric automobile, the one end and the vehicle mounted power of connector are connected, and the other end is connected with the actuating mechanism of vehicle. The connector comprises the female terminal 1 and the male terminal 2, and the male terminal 2 abuts against the end face of the second end 152 of the contact part 15 of the female terminal 1 through the annular elastic piece 211.

The connector provided by the utility model adopts the end face contact mode, the female terminal 1 adopts the floatable contact element 15, no matter the contact end face is worn or shakes under the bumpy environment, the contact element 15 can automatically float under the elasticity of the elastic element 14, and always keeps the close contact with the reed 13, so that the contact reliability is increased, the contact between the contact element 15 and the sleeve is good, and the electric conductivity of the contact element is ensured; the male terminal 2 realizes the floating end face contact of the male terminal 2 and the female terminal 1 through the annular elastic piece 211, the end face contact reliability is effectively improved, the problems of arc discharge, poor surface oxidation contact, large contact pressing force, easy aging of the surface of a metal pad after long-term use and the like caused by the end face contact of the metal pad in the prior art are solved, and the electric conduction terminal is simple in structure, small in occupied space and stable and reliable in electric conduction performance.

The above-disclosed embodiments are merely exemplary embodiments of the present invention, which should not be construed as limiting the scope of the invention, but rather as equivalent variations of the invention are covered by the following claims.

Claims

1. A female terminal characterized by comprising a sleeve, a spring (13), an elastic member (14), and a contact member (15), the spring (13), the elastic member (14), and the contact member (15) being accommodated in the sleeve,

one end of the sleeve is closed, the other end is provided with an opening (122),

one end of the elastic element (14) is abutted against the closed end of the sleeve, the other end of the elastic element (14) is abutted against the contact element (15),

the contact (15) comprises a first end (151) and a second end (152) opposite the first end (151), the first end (151) extending towards the closed end of the sleeve and being in contact with the spring (13), the second end (152) being larger than the opening (122) so that the contact (15) is always housed inside the sleeve inside which the contact (15) can move.

2. The female terminal of claim 1, wherein: the sleeve includes barrel (11) and shell (12), first holding chamber (111) have in barrel (11), the one end of barrel (11) is sealed, and the cover is equipped with on the other end outer wall shell (12), shell (12) are kept away from one side of barrel (11) blind end has been seted up opening (122), shell (12) with form second holding chamber (121) between barrel (11), the one end in second holding chamber (121) with first holding chamber (111) intercommunication, the other end in second holding chamber (121) passes through opening (122) with sleeve outside intercommunication.

3. The female terminal of claim 2, wherein: the outer shell (12) is in interference fit with the outer wall of the barrel (11).

4. The female terminal of claim 2, wherein: the reed (13) has elasticity, the reed (13) is arranged on the inner wall of the first accommodating cavity (111), the middle part of the reed (13) protrudes from the inner wall of the first accommodating cavity (111) to the inside of the first accommodating cavity (111), and the side wall of the contact piece (15) is abutted to the reed (13).

5. The female terminal of claim 2, wherein: the first end (151) of the contact element (15) is accommodated in the first accommodating cavity (111), the second end (152) of the contact element (15) is accommodated in the second accommodating cavity (121), and the contact element (15) can move in the first accommodating cavity (111) and the second accommodating cavity (121).

6. The female terminal of claim 2, wherein: the elastic piece (14) is accommodated in the second accommodating cavity (121), the elastic piece (14) is a spring, the spring surrounds the contact piece (15), one end of the spring is abutted against the cylinder (11), and the other end of the spring is abutted against the second end (152) of the contact piece (15).

7. The female terminal of claim 6, wherein: an annular clamping groove (112) is formed in the outer wall of one end, close to the second accommodating cavity (121), of the barrel (11), and one end, abutted against the barrel (11), of the spring is located in the annular clamping groove (112) and abutted against the bottom of the annular clamping groove (112).

8. A male terminal, comprising: the male terminal is provided with a connecting part (21) used for being connected with the female terminal of any one of the claims 1-7, wherein the side of the connecting part (21) opposite to the end face of the second end (152) of the contact part (15) is provided with an annular groove, and an annular elastic part (211) used for being in end face contact with the second end (152) is arranged in the annular groove.

9. The male terminal of claim 8, wherein: the annular elastic piece (211) is an annular spring.

10. A connector, characterized by: the connector comprises a female terminal of any one of claims 1 to 7 and a male terminal of any one of claims 8 to 9, the male terminal being in end face abutment with the second end (152) of the female terminal contact member (15) by means of an annular resilient member (211).