CN219513380U - Combined copper needle with excessive current - Google Patents

Abstract

The utility model relates to the field of new energy connectors, in particular to an oversized-current combined copper needle which comprises a shell and a torsion spring arranged in the shell, wherein the torsion spring comprises connecting parts at two ends, a plurality of inclined elastic grid bars arranged between the two connecting parts and a plurality of bending parts integrally arranged at the end parts of the connecting parts and bent outwards, the bending parts are contacted with the inner wall of the shell, mounting grooves are formed between the bending parts and the connecting parts and the inclined elastic grid bars, a metal inner sleeve is clamped in the mounting grooves, the oversized-current combined copper needle is contacted with a contact pin through the inclined elastic grid bars, the contact area can be increased, the contact area between the bending parts and the inner wall of a first sleeve is increased, the contact area between the bending parts and the shell is increased due to the plurality of bending parts, the impact of larger current can be born, the torsion spring is supported through the arrangement of the metal inner sleeve, and the excessive deformation of the torsion spring is prevented along with the increase of the number of plugging times.

Description

Combined copper needle with excessive current

Technical Field

The utility model relates to the field of new energy connectors, in particular to a combined copper needle with excessive current.

Background

The existing new energy connector has the defects that the torsional spring (crown spring) in the jack has the contact part positioned at the waist of the torsional spring, when the contact pin is inserted, only the waist is in contact with the contact pin, and the two ends of the torsional spring are connected with the metal shell, so that the contact area is small, and the impact of large current is difficult to bear.

Therefore, it is necessary to provide a new combined copper needle with excessive current to solve the above technical problems.

Disclosure of Invention

In order to solve the technical problems, the utility model provides an excessive current combined copper needle.

The utility model provides an excessive current combined copper needle which comprises a shell and a torsion spring arranged in the shell, wherein the torsion spring comprises connecting parts at two ends, a plurality of inclined elastic grid bars arranged between the two connecting parts and a plurality of bending parts integrally arranged at the end parts of the connecting parts and bent outwards, the bending parts are in contact with the inner wall of the shell, a mounting groove is formed between the bending parts and the connecting parts and between the bending parts and the inclined elastic grid bars, and a metal inner sleeve is clamped in the mounting groove.

Preferably, the casing comprises a first sleeve and a second sleeve, the first sleeve is in contact with one end of the second sleeve, and the inner walls of the first sleeve and the second sleeve are respectively in contact with the bending parts at two ends of the torsion spring.

Preferably, one end of the first sleeve, which is far away from the second sleeve, is provided with a connecting column, and a cow nose metal piece is fixed on the connecting column.

Preferably, the ox nose metal piece is provided with a mounting hole, and the mounting hole is in interference fit with the connecting column.

Preferably, the inner wall ends of the first sleeve and the second sleeve are respectively provided with a chamfer.

Preferably, the torsion spring is a copper alloy material member.

Compared with the related art, the combined copper needle with the excessive current has the following beneficial effects:

through the contact of a plurality of oblique shape elasticity grid and contact pin, can improve area of contact, through kink and first sleeve and the extrusion contact of second sleeve inner wall, owing to have a plurality of kinks, improve kink and the area of contact of shell, can bear the impact of great electric current, through the setting of metal endotheca, play the effect of supporting to the torsional spring, prevent that the torsional spring from producing excessive deformation along with the increase of plug number of times.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of an explosive structure according to the present utility model;

FIG. 3 is a schematic view of a metal part of a cow nose in accordance with the present utility model;

FIG. 4 is a schematic cross-sectional view of the overall structure of the present utility model;

FIG. 5 is a schematic view of the torsion spring structure of the present utility model.

Reference numerals in the drawings: 1. a housing; 11. a first sleeve; 111. a connecting column; 12. a second sleeve; 2. a torsion spring; 21. a connection part; 22. oblique elastic grid bars; 23. a bending part; 24. a mounting groove; 3. a metal inner sleeve; 4. a metal piece of a cow nose; 41. a mounting hole; a. chamfering.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Specific implementations of the utility model are described in detail below in connection with specific embodiments.

Examples:

referring to fig. 1-5, the combined copper needle with excessive current provided by the embodiment of the utility model comprises a housing 1 and a torsion spring 2 installed in the housing 1, wherein the torsion spring 2 is a copper alloy material member with good conductivity, the torsion spring 2 comprises a connecting part 21 at two ends, a plurality of inclined elastic grid bars 22 arranged between the two connecting parts 21, and a plurality of bending parts 23 integrally arranged at the end parts of the connecting parts 21 and bending outwards, the bending parts 23 are in contact with the inner wall of the housing 1, a mounting groove 24 is formed between the bending parts 23 and the connecting parts 21 and the inclined elastic grid bars 22, and a metal inner sleeve 3 is clamped in the mounting groove 24.

The shell 1 comprises a first sleeve 11 and a second sleeve 12, the first sleeve 11 is in contact with one end of the second sleeve 12, the inner walls of the first sleeve 11 and the second sleeve 12 are respectively in contact with bending parts 23 at two ends of the torsion spring 2, and chamfer angles a are formed at the inner wall ends of the first sleeve 11 and the second sleeve 12, so that the torsion spring 2 can be conveniently inserted into the first sleeve 11 and the second sleeve 12.

The one end that second sleeve 12 was kept away from to first sleeve 11 is equipped with spliced pole 111, be fixed with ox nose metalwork 4 on the spliced pole 111, be convenient for join in marriage the wiring, be equipped with mounting hole 41 on the ox nose metalwork 4, mounting hole and spliced pole 111 interference fit, the cooperation is more stable.

The installation process comprises the following steps:

firstly, sleeving a metal inner sleeve 3 on the outer side of an inclined elastic grid bar 22;

then, the bending part 23 is bent, so that the metal inner sleeve 3 is clamped and fixed by the torsion spring 2;

then, the first sleeve 11 and the second sleeve 12 are respectively inserted from two ends of the torsion spring 2, so that the bending part 23 and the first sleeve 11 and the second sleeve 12 are relatively fixed;

finally, the bull nose fitting 4 is mounted on the mounting hole 41.

The contact pin is inserted into the copper pin, and the contact pin contacts with the plurality of inclined elastic grid bars 22, so that the contact area can be increased, and the contact area between the bending part 23 and the shell 1 is increased due to the fact that the bending part 23 is in extrusion contact with the inner walls of the first sleeve 11 and the second sleeve 12.

The foregoing is only illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, and all equivalent structures or equivalent flow modifications which may be made by the teachings of the present utility model and the accompanying drawings or which may be directly or indirectly employed in other related art are within the scope of the utility model.

Claims (6)

1. The utility model provides a combination formula copper needle of excessive current, includes shell (1) and installs torsional spring (2) inside shell (1), its characterized in that: the torsion spring (2) comprises connecting portions (21) at two ends, a plurality of inclined elastic grid bars (22) arranged between the two connecting portions (21) and a plurality of bending portions (23) which are integrally arranged at the end portions of the connecting portions (21) and are bent outwards, the bending portions (23) are in contact with the inner wall of the shell (1), mounting grooves (24) are formed between the bending portions (23) and the connecting portions (21) and the inclined elastic grid bars (22), and metal inner sleeves (3) are clamped in the mounting grooves (24).

2. The combined copper needle for over-current according to claim 1, wherein the housing (1) comprises a first sleeve (11) and a second sleeve (12), the first sleeve (11) is contacted with one end of the second sleeve (12), and the inner walls of the first sleeve (11) and the second sleeve (12) are respectively contacted with bending parts (23) at two ends of the torsion spring (2).

3. The combined copper needle with the excessive current according to claim 2, wherein a connecting column (111) is arranged at one end of the first sleeve (11) far away from the second sleeve (12), and a cow nose metal piece (4) is fixed on the connecting column (111).

4. A combined copper needle for over-current according to claim 3, characterized in that the cow-nose metal piece (4) is provided with a mounting hole (41) which is in interference fit with the connecting post (111).

5. The overcurrent combined copper needle according to claim 2, wherein the inner wall ends of the first sleeve (11) and the second sleeve (12) are provided with chamfers (a).

6. A combined copper needle for over-current according to claim 3, characterized in that the torsion spring (2) is a copper alloy material member.