CN210897886U

CN210897886U - Centrosymmetric circular connector

Info

Publication number: CN210897886U
Application number: CN201921649580.1U
Authority: CN
Inventors: 董志成; 朱明海; 姜庆海; 吴战宇; 蒋仕平; 施晓渝; 刘成刚
Original assignee: Huafu Jiangsu Lithium Electricity New Technology Co ltd
Current assignee: Huafu Jiangsu Lithium Electricity New Technology Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-06-30
Anticipated expiration: 2029-09-30

Abstract

The utility model discloses a central symmetry's circular connector belongs to connector design technical field, including can inserting each other, male head and female head pulled out, the centre of male head is provided with the anodal post and encircles its negative pole groove all around, be provided with four groups of auxiliary contact poles around the negative pole groove, the center of female head is provided with anodal groove, and centers on anodal groove negative pole ring post all around, the outside of negative pole ring post is provided with four groups of auxiliary contact holes, when male head and female head are pegged graft, the anodal post inserts anodal groove, during the negative pole ring post was pegged graft to the negative pole groove, four groups of auxiliary contact poles were pegged graft in four groups of auxiliary contact holes in proper order. The utility model can meet the communication requirements in four directions, and can still realize communication when one of the communication modules fails; the actual contact area is increased; and the anti-sparking design is added, so that the loss of contacts is reduced, and the hidden trouble of short circuit of the lithium ion battery is reduced.

Description

Centrosymmetric circular connector

Technical Field

The utility model relates to a circular connector with central symmetry belongs to connector design technical field.

Background

With the implementation of new national standards of electric bicycles, the traditional lead-acid battery is gradually replaced by the lithium battery of the electric bicycle power supply, and the lithium battery in a centralized charging and leasing mode appears along with the gradual exposure of the safety problem of the charging and discharging of the lithium battery. The traditional socket has a common product character head and a plug with an auxiliary contact, and the existing plug with the auxiliary contact has the following problems: the communication requirement can be met only in one direction, and the damage and the mistake can not be prevented; the traditional plug design is designed for infrequent plug-in connection, the actual contact surface is small, and the service life is short; the design of no sparking is adopted, the loss of contacts is easy to cause, and the short-circuit protection of the lithium ion battery is easy to be triggered by mistake.

Therefore, a circular connector having central symmetry is desired.

Disclosure of Invention

In order to solve the technical problem, the utility model discloses a circular connector with central symmetry, its concrete technical scheme as follows: the connector comprises a connector body, wherein a main power contact structure is arranged at the middle position of the connector body, an auxiliary communication structure is surrounded around the main power contact structure, and the communication structure is axisymmetric and centrosymmetric.

Further, the connector body includes public head and female head, main power contact structure anodal post, negative pole groove, anodal groove and negative pole ring post, and the auxiliary contact structure includes auxiliary contact pole and auxiliary contact hole.

Furthermore, the male head comprises a male head disc, a circle of concentric fixing rings are embedded in the male head disc, and two end faces of the fixing rings protrude out of the corresponding end faces of the male head disc. The fixing ring is provided with a plurality of fixing holes along the axial direction, the auxiliary contact rod is arranged in the fixing holes, and two ends of the auxiliary contact rod extend out of the fixing holes. The positive pole post and negative pole trench are located the public head dish and are used for the center of grafting one side. The positive pole is located at the positive center, and the negative pole groove surrounds the positive pole. The auxiliary contact rods are uniformly distributed around the negative pole groove in a surrounding mode.

Furthermore, the female head comprises a female head disc, an annular concentric circular truncated cone is embedded in the female head disc, and the auxiliary contact hole is axially formed in the circular truncated cone. The positive pole groove and the negative pole ring post are located the center of one side that female head dish is used for inserting, and every group auxiliary contact hole all has 4 equidistance distribution's auxiliary contact hole, and every group auxiliary contact hole is around negative pole ring post circumference evenly distributed.

Further, the auxiliary contact rods and the auxiliary contact holes are adapted to and correspond to each other, the respective number of them is 16, and each of 4 auxiliary contact columns and 4 auxiliary contact holes are used as one group, for a total of four groups.

Furthermore, four groups of auxiliary contact columns and 4 auxiliary contact holes are connected in parallel, each group can independently communicate,

further, the main power contact structure is internally provided with a power type NTC. The power type NTC is arranged in the cylinder.

Further, the main power contact structure and the auxiliary power contact structure are combined with the NTC to form a two-point contact design.

Furthermore, a group of relative elastic pieces are arranged on the inner wall of the auxiliary contact hole, the distance between the elastic pieces is smaller than the inner diameter of the auxiliary contact hole, after the auxiliary contact rod is inserted, the elastic pieces are spread, and the elastic pieces compress the auxiliary contact rod. The contact area is increased, the current input is stable, the heat productivity is reduced, and the contact is sensitive.

The utility model discloses a theory of operation is:

four groups of auxiliary contact columns and auxiliary contact holes which are symmetrically distributed in a ring shape and used for auxiliary communication are arranged, so that people at four angles can normally charge and discharge and communicate at one angle.

The auxiliary positive and negative poles of the female head respectively adopt an elastic copper clamping structure, and the male head adopts an insertion structure. The contact area is increased, the current input is stable, the heat productivity is reduced, and the contact is sensitive.

The built-in power type NTC prevents the power supply from generating strong sparks to the short circuit of a load capacitor at the moment of plugging, and greatly prolongs the service life of the contact.

Two segmentation contact designs for before main contact closure, the power passes through NTC and carries out the precharge to load capacitance, and NTC initial resistance is great, and restriction initial current can effectively restrain the spark and produce, and NTC resistance diminishes after the millisecond level time, and the electric capacity charges with higher speed.

The utility model has the advantages that:

the utility model can meet the communication requirements in four directions, and can still realize communication when one of the communication modules fails; the anti-sparking design is added, the loss of the contact is reduced, and the hidden trouble of short circuit of the lithium ion battery is reduced; the actual contact area of the auxiliary contact inductor and the contact hole is increased, the current input is stable, the heating value is reduced, and the contact is sensitive.

Drawings

Figure 1 is a schematic structural diagram of a male head of the invention,

figure 2 is a schematic structural diagram of the female head of the utility model,

figure 3 is a schematic top view of the structure of the male head of the present invention,

figure 4 is a schematic structural side view of the male head of the present invention,

figure 5 is a schematic plan view of the structure of the female head of the present invention,

figure 6 is a schematic structural side view of the female head of the present invention,

fig. 7 is a schematic view of the connection structure of four sets of auxiliary contact posts and auxiliary contact holes according to the present invention;

fig. 8 is a schematic diagram of a two-point contact design formed by combining the main power contact structure and the auxiliary power contact structure of the present invention with an NTC.

Reference numerals: 1-male head, 2-female head, 101-positive pole, 102-negative pole groove, 103-auxiliary contact rod, 104-male head disk, 105-fixing ring, 106-fixing hole, 201-positive pole groove, 202-negative pole circular ring column, 203-auxiliary contact hole, 204-female head disk, 205-table board.

Detailed Description

The present invention will be further clarified by the following description with reference to the attached drawings and specific examples, which should be understood as being merely illustrative of the present invention and not limiting the scope of the present invention, and modifications of various equivalent forms of the present invention by those skilled in the art after reading the present invention, all fall within the scope defined by the appended claims of the present application.

As shown in figure 1, the centrosymmetric round connector comprises a male head 1 and a female head 2, wherein the male head 1 and the female head 2 are mutually matched and are arranged in mutually matched structures. The method comprises the following specific steps: the male head 1 comprises a circular male head disc 104, a fixing ring 105 is embedded in the male head disc 104, and two end faces of the fixing ring 105 protrude out of the surface of the head disc 104. The fixing ring 105 is provided with 16 fixing holes 106, and the fixing holes 106 are divided into four groups with 4 groups, and are symmetrically and uniformly distributed. The auxiliary contact rod 6 is installed in the fixing hole 106, one end of the auxiliary contact column 6 extends into the fixing hole 106, and the other end is exposed out of the fixing hole 106. The inside of the fixing ring 105 is provided with an annular negative annular groove 102 and a positive post 101.

The female head 2 comprises a circular female head disc 104, a convex circular truncated cone 205 is arranged on the female head disc 104, 16 contact holes 206 are formed in the circular truncated cone 205, the positions of the contact holes 206 are distributed to correspond to the fixing holes 106 and the auxiliary contact rods 103 in the male head 1, and contacts are mounted in each contact hole 206. The circular truncated cone 205 is provided with an annular negative pole 102 at the center, and a positive pole groove 101 is arranged in the negative pole 102.

The auxiliary contact posts 103 and the auxiliary contact holes 103 are adapted and correspond to each other, the number of the auxiliary contact posts is 16, and each 4 auxiliary contact posts 103 and 4 auxiliary contact holes 103 are used as one group, so that the total number is four. The communication requirements in four directions are met, and when one of the communication requirements fails, communication can still be achieved. The defect that the mistake and the damage can not be prevented in the prior art is overcome.

Four sets of auxiliary contact posts 103 and 4 auxiliary contact holes 103 are connected in parallel, and each set is capable of communicating individually. As shown in fig. 7.

The male disc 104 and the female disc 104 are both disc-shaped. The height of the auxiliary contact rod 103 is consistent with that of the positive pole 101; the auxiliary contact holes 203 are formed in a circular ring-shaped table surface 205, the table surface 205 is embedded in the female head disc 204 and keeps concentric, and the height of the table surface 205 is consistent with that of the negative pole circular ring column 202. The male head and the female head can be matched when being inserted and closed, and no gap exists.

A group of relative elastic sheets 207 is arranged on the inner wall of the contact hole 206, the distance between the elastic sheets 207 is smaller than the inner diameter of the auxiliary contact hole 206, after the auxiliary contact rod is inserted, the elastic sheets are spread, and the elastic sheets 207 compress the auxiliary contact rod.

Or, the crown reed is arranged in the touch point hole 206, so that the actual contact area can be increased, the current input is stable, the heat productivity is reduced, and the touch is sensitive.

The main power contact structure is internally provided with a power type NTC. The power type NTC is disposed inside the cylinder 402. The main power contact structure and the auxiliary power contact structure are combined with the NTC to form a two-point contact design. Before the main contact is closed, the power supply precharges the load capacitor through the NTC, the initial resistance of the NTC is large, the initial current is limited, the spark generation can be effectively inhibited, the NTC resistance becomes small after millisecond time, and the capacitor charging is accelerated. As shown in fig. 8.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A centrosymmetric circular connector, characterized in that: comprises a male head (1) and a female head (2) which can be mutually inserted and pulled, wherein the middle of the male head (1) is provided with a positive pole column (101) and a negative pole groove (102) surrounding the positive pole column, four groups of auxiliary contact rods (103) are arranged around the negative pole groove (102),

the center of the female head (2) is provided with a positive electrode groove (201) and a negative electrode circular ring column (202) surrounding the positive electrode groove (201), four groups of auxiliary contact holes (203) are arranged outside the negative electrode circular ring column (202),

when the male head (1) and the female head (2) are plugged, the positive pole column (101) is inserted into the positive pole groove (201), the negative pole circular column (202) is plugged into the negative pole groove (102), and the four groups of auxiliary contact rods (103) are sequentially plugged into the four groups of auxiliary contact holes (203).

2. The center symmetric circular connector of claim 1, wherein: public head (1) is including circular shape public head dish (104), positive post (101) and negative pole groove (102) are located public head dish (104) and are used for the center of grafting one side, and every group auxiliary contact pole (103) all have 4 equidistance distribution auxiliary contact poles (103), and every group auxiliary contact pole (103) are around negative pole groove (102) circumference evenly distributed.

3. The centrosymmetric circular connector of claim 2, wherein: female first (2) are including female head dish (204), anodal groove (201) and negative pole ring post (202) are located the center that female head dish (204) are used for connecing one side of inserting, and every group auxiliary contact hole (203) all have auxiliary contact hole (203) of 4 equidistance distributions, and every group auxiliary contact hole (203) centers on negative pole ring post (202) circumference evenly distributed.

4. The center symmetric circular connector of claim 1, wherein: each group of auxiliary contact rods (103)/auxiliary contact holes (203) are connected in parallel, and each group of auxiliary contact holes (203) are inserted into one group of auxiliary contact rods (103) to realize independent communication.

5. The center symmetric circular connector of claim 3, wherein: the male head disc (104) is embedded with an annular and concentric fixing ring (105), the fixing ring (105) is provided with a plurality of fixing holes (106), the auxiliary contact rod (103) is fixed in the fixing holes (106), and the height of the auxiliary contact rod (103) is consistent with that of the positive post (101);

an annular concentric table board (205) is embedded in the female head disc (204), the auxiliary contact holes (203) are formed in the circular table board (205), and the height of the table board (205) is consistent with that of the negative pole circular ring column (202).

6. The center symmetric circular connector of claim 1, wherein: the positive pole piece (101) is characterized by further comprising a power type NTC, and the power type NTC is arranged inside the positive pole piece (101).

7. The center symmetric circular connector of claim 6, wherein: the main power contact structure and the auxiliary power contact structure are combined with a built-in power type NTC to form a two-point contact structure.