CN219917731U

CN219917731U - Contact charging needle

Info

Publication number: CN219917731U
Application number: CN202321570981.4U
Authority: CN
Inventors: 肖龙蟠
Original assignee: Shenzhen Hongyuan Precision Hardware Co ltd
Current assignee: Shenzhen Hongyuan Precision Hardware Co ltd
Priority date: 2023-06-20
Filing date: 2023-06-20
Publication date: 2023-10-27
Anticipated expiration: 2033-06-20

Abstract

The utility model discloses a contact charging needle, which relates to the technical field of battery charging and comprises a needle tube and a second sealing ring, wherein a return assembly is arranged in the middle of the right side of the interior of the needle tube, the left side of the return assembly is connected with a needle shaft, a charging contact is arranged on the left side of the needle shaft, the left side of the exterior of the needle shaft is sleeved with a first sealing ring, the left side of the exterior of the needle tube is provided with an external thread cylinder, the exterior of the external thread cylinder is connected with an internal thread cylinder, the exterior of the internal thread cylinder is provided with a tube cover, the inner side of the tube cover is provided with a mounting seat, and the second sealing ring is connected with the inner side of the mounting seat. The seat sleeve can be sleeved outside the spring seat to be stored when the contact charging needle return spring is pressed, and meanwhile, the needle shaft in the shape of the circular truncated cone can be retracted into the needle tube, so that the effect that water vapor or liquid enters the needle tube after being attached to the sealing ring I and the sealing ring II is avoided, the return spring is protected from being rusted and damaged, and the normal conductive performance of the charging needle is guaranteed.

Description

Contact charging needle

Technical Field

The utility model relates to the technical field of battery charging, in particular to a contact charging needle.

Background

In real life, the wireless earphone is usually provided with a charging power supply, and needs to be charged in time when the power supply is insufficient so as to ensure that the wireless earphone can work normally. Because wireless earphone self space is limited, and general charging connector uses inconveniently, consequently most still select to use the needle that charges, and the needle that charges has the stable performance, and the volume can be very little, makes things convenient for the characteristics of meticulous connection.

However, in daily life, liquid easily enters the charging needle from the connecting part of the wireless earphone, so that the electric conduction performance of the charging needle is faulty.

Accordingly, in view of the above, research and improvement have been made with respect to the conventional structure and the conventional drawbacks, and a contact charging pin has been proposed.

Disclosure of Invention

The present utility model is directed to a contact charging pin, which solves the above-mentioned problems of the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a contact needle that charges, includes needle tubing and sealing ring two, the inside right side mid-mounting of needle tubing has return subassembly, and return subassembly's left side is connected with the needle shaft, the left side of needle shaft is provided with the contact that charges, and the outside left side cover of needle shaft is equipped with sealing ring one, the outside left side of needle tubing is provided with the external screw thread section of thick bamboo, and the external connection of external screw thread section of thick bamboo has an internal screw thread section of thick bamboo, the outside of internal screw thread section of thick bamboo is provided with the tube cap, and the inboard of tube cap is provided with the mount pad, sealing ring two connect in the inboard of mount pad.

Further, return subassembly includes spring holder, return spring and seat cover, and the inside right side of spring holder is provided with return spring, return spring's the other end is connected with the seat cover.

Further, return subassembly still includes gyro wheel frame and gyro wheel, and the top bottom of seat cover all is provided with the gyro wheel frame, the inside of gyro wheel frame is connected with the gyro wheel through the shaft.

Further, the spring seat is elastically connected with the seat sleeve through the return spring, and the outer diameter size of the spring seat is matched with the inner diameter size of the seat sleeve.

Further, the roller frame is concave and inverted concave, and the roller is tightly attached to the inner wall of the needle tube.

Furthermore, the needle shaft is in a truncated cone shape, and the needle shaft and the seat sleeve are in an integrated structure.

Further, the pipe cover is in threaded connection with the external thread cylinder through the internal thread cylinder, and the internal thread cylinder and the pipe cover are of an integrated structure.

Further, the mounting seat is connected with the second sealing ring in a clamping mode, and the inner diameter of the second sealing ring is smaller than that of the mounting seat.

The utility model provides a contact charging needle, which has the following beneficial effects:

1. when the return spring is pressed, the seat sleeve can be sleeved outside the spring seat to realize storage, and meanwhile, the round table-shaped needle shaft can be retracted into the needle tube, so that the first sealing ring is attached to the second sealing ring to prevent water vapor or liquid from entering the needle tube, the return spring is protected from being rusted and damaged, and the normal conductivity of the charging needle is ensured.

2. The size of the opening at the left end of the second sealing ring is smaller than that of the opening at the right end of the second sealing ring, and the second sealing ring can be kept in a close fit state with the round table-shaped needle shaft when the return spring rebounds, so that liquid is prevented from entering the needle tube from the joint of the second sealing ring and the needle tube, and the service life of the charging needle is prolonged to a certain extent.

Drawings

FIG. 1 is a schematic view of the overall cross-sectional structure of a contact charging pin of the present utility model;

FIG. 2 is a schematic view of a two-dimensional structure of a mounting seat and a sealing ring of a contact charging pin;

fig. 3 is an enlarged perspective view of a contact charging pin of fig. 1 according to the present utility model.

In the figure: 1. a needle tube; 2. a return assembly; 201. a spring seat; 202. a return spring; 203. a seat cover; 204. a roller frame; 205. a roller; 3. a needle shaft; 4. a first sealing ring; 5. an external thread cylinder; 6. an internal thread cylinder; 7. a tube cover; 8. a mounting base; 9. a second sealing ring; 10. and a charging contact.

Description of the embodiments

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

As shown in fig. 1, a contact charging needle comprises a needle tube 1 and a sealing ring II 9, wherein a return component 2 is mounted in the middle of the right side of the interior of the needle tube 1, a needle shaft 3 is connected to the left side of the return component 2, the return component 2 comprises a spring seat 201, a return spring 202 and a seat sleeve 203, the return spring 202 is arranged on the right side of the interior of the spring seat 201, the other end of the return spring 202 is connected with the seat sleeve 203, the return component 2 further comprises a roller frame 204 and a roller 205, the top and bottom of the seat sleeve 203 are both provided with the roller frame 204, the roller 205 is connected with the seat sleeve 203 through a wheel shaft, the spring seat 201 is elastically connected with the seat sleeve 203 through the return spring 202, the outer diameter of the spring seat 201 is matched with the inner diameter of the seat sleeve 203, the roller frame 204 is concave and inverted concave, the roller 205 is tightly attached to the inner wall of the needle tube 1, the needle shaft 3 is in a round table shape, the needle shaft 3 and the seat sleeve 203 are in an integrated structure, a charging contact 10 is arranged on the left side of the needle shaft 3, the left side of the needle shaft 3 is sleeved with the sealing ring II, the seat sleeve 203 is sleeved with the sealing ring I4, the seat sleeve 203 can be sleeved on the outside the seat sleeve 201 when the return spring 202 is tightly pressed, the needle seat sleeve 203 is enabled to be connected with the seat sleeve 203 to realize that the needle seat sleeve 203 and the needle seat sleeve 203 is in the state with the seat sleeve 203, the needle seat sleeve, the needle 1 is well, the needle 1 or the needle seat sleeve 203 is not well and the needle 1, and the needle 1 is well or the needle 1 is prevented from being rusted;

as shown in fig. 1 to 3, the left side of the outside of the needle tube 1 is provided with an external thread cylinder 5, and the outside of the external thread cylinder 5 is connected with an internal thread cylinder 6, the outside of the internal thread cylinder 6 is provided with a tube cover 7, and the inner side of the tube cover 7 is provided with a mounting seat 8, a sealing ring II 9 is connected to the inner side of the mounting seat 8, the tube cover 7 is in threaded connection with the external thread cylinder 5 through the internal thread cylinder 6, and the internal thread cylinder 6 and the tube cover 7 are in an integrated structure, the mounting seat 8 and the sealing ring II 9 are in clamping connection, the inner diameter size of the sealing ring II 9 is smaller than the inner diameter size of the mounting seat 8, and the left end opening size of the sealing ring II 9 is smaller than the right end opening size, so that the sealing ring II can keep a tightly attached state with the needle shaft 3 in a round table shape when the return spring 202 rebounds, thereby preventing liquid from entering the needle tube 1 from the junction of the two parts, and the service life of the charging needle is prolonged to a certain extent.

In sum, when the contact charging needle is used, firstly, the charging contact 10 is extruded through the charging notch of the wireless earphone, the compression of the return spring 202 between the spring seat 201 and the seat sleeve 203 is realized, the needle shaft 3 in the shape of a circular truncated cone is retracted into the needle tube 1 until the seat sleeve 203 is sleeved outside the spring seat 201 to realize storage, at the moment, the first sealing ring 4 is attached to the second sealing ring 9, so that water vapor or liquid is prevented from entering the needle tube 1, the return spring 202 is protected from being rusted and damaged, the normal electric conduction performance of the charging needle is ensured, after the charging is finished, the needle shaft 3 is outwards ejected from the interior of the needle tube 1 by virtue of the rebound action of the return spring 202 between the spring seat 201 and the seat sleeve 203, and because the left end opening size of the second sealing ring 9 is smaller than the right end opening size, the second sealing ring 9 can be tightly attached to the conical needle shaft 3 when the return spring 202 rebounds, so that liquid is prevented from entering the needle tube 1 from the joint of the second sealing ring and the conical needle shaft, the service life of the charging needle is prolonged to a certain extent, the tube cover 7 is in threaded connection with the external thread tube 5 through the internal thread tube 6, the internal thread tube 6 and the external thread tube 5 can be detached when the second sealing ring 9 meets the replacement condition, the second sealing ring 9 can be withdrawn relative to the inside of the mounting seat 8 when the second sealing ring 9 is pushed, the roller frame 204 plays a role in supporting the roller 205, and the needle shaft 3 provides moving support through the roller 205 symmetrically arranged at the top bottom of the seat cover 203, so that bending of the return spring 202 and deflection of the needle shaft 3 can be reduced when the extrusion degree is large in the rebound process of the return spring 202.

The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a contact needle that charges, includes needle tubing (1) and sealing ring two (9), a serial communication port, inside right side mid-mounting of needle tubing (1) has return subassembly (2), and the left side of return subassembly (2) is connected with needle shaft (3), the left side of needle shaft (3) is provided with charging contact (10), and the outside left side cover of needle shaft (3) is equipped with sealing ring one (4), the outside left side of needle tubing (1) is provided with external screw thread section of thick bamboo (5), and the external connection of external screw thread section of thick bamboo (5) has internal screw thread section of thick bamboo (6), the outside of internal screw thread section of thick bamboo (6) is provided with tube cap (7), and the inboard of tube cap (7) is provided with mount pad (8), sealing ring two (9) are connected in the inboard of mount pad (8).

2. A contact charging needle according to claim 1, characterized in that the return assembly (2) comprises a spring seat (201), a return spring (202) and a seat cover (203), and the return spring (202) is arranged on the right side of the inside of the spring seat (201), and the other end of the return spring (202) is connected with the seat cover (203).

3. A contact charging pin according to claim 2, characterized in that the return assembly (2) further comprises a roller frame (204) and rollers (205), the roller frames (204) are arranged at the top and bottom of the seat cover (203), and the rollers (205) are connected to the inside of the roller frames (204) through wheel shafts.

4. A contact charging pin according to claim 3, characterized in that the spring seat (201) is elastically connected to the sleeve (203) by means of a return spring (202), and the outer diameter dimension of the spring seat (201) matches the inner diameter dimension of the sleeve (203).

5. A contact charging pin according to claim 3, wherein the roller frame (204) is concave and inverted concave, and the roller (205) is closely attached to the inner wall of the needle tube (1).

6. A contact charging needle according to claim 1, characterized in that the needle shaft (3) is in the shape of a truncated cone, and the needle shaft (3) and the sleeve (203) are in an integrated structure.

7. A contact charging pin according to claim 1, characterized in that the tube cover (7) is screwed with the external thread tube (5) by means of the internal thread tube (6), and that the internal thread tube (6) and the tube cover (7) are of an integrated structure.

8. A contact charging pin according to claim 1, characterized in that the mounting seat (8) is in snap connection with the second sealing ring (9), and the inner diameter of the second sealing ring (9) is smaller than the inner diameter of the mounting seat (8).