CN212751198U - Waterproof charging needle and conductive structure - Google Patents

Abstract

The utility model relates to a conductive structure, in particular to a waterproof charging needle and a conductive structure, the waterproof charging needle comprises a charging needle body, the outer circumferential wall of the charging needle body is provided with at least one circle of waterproof lug boss; and the conductive structure comprises the waterproof charging pin and the elastic base, and the waterproof charging pin is in interference fit with the elastic base. The utility model discloses simple structure is provided with waterproof boss through the perisporium at the needle body that charges, and this waterproof boss and elastic base interference fit can effectively avoid steam to permeate from the gap between needle body and the elastic base that charges, has improved conducting structure's waterproof performance greatly.

Description

Waterproof charging needle and conductive structure

Technical Field

The utility model relates to an electrically conductive structure especially indicates a waterproof needle and electrically conductive structure that charges.

Background

In recent years, with the development of the scientific and technological industry, cleaning devices such as electric toothbrushes, tooth cleaners, shavers, and face cleaners have frequently appeared in daily life. For convenience of use, these instruments are usually charged and stored, and the instruments are connected to an external electronic device through a charging pin protruding out of the casing. Thus, these devices are often required to be used in wet and watery environments such as bathrooms, and the requirements for waterproofing the location of the charging pin are becoming more stringent. When the needle that charges is not connected to outside electron device, the gap infiltration between needle and the casing is followed easily to steam to lead to the whole waterproof function of instrument to reduce, arouse trouble such as circuit adhesion sintering easily, damage the instrument.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a waterproof needle and conductive structure that charges, simple structure, it is with low costs, and improved conductive structure's waterproof performance greatly.

In order to achieve the above object, the utility model adopts the technical scheme that a waterproof charging needle and conductive structure are provided.

The waterproof charging pin comprises a charging pin body, wherein the outer circumferential wall of the charging pin body is provided with at least one circle of waterproof bosses.

Preferably, one end of the charging pin body is provided with a lead-in part.

Preferably, the outer circumferential wall of one end of the charging pin body, which is far away from the lead-in part, is provided with a stop table, and the waterproof boss is arranged between the lead-in part and the stop table.

As a preferred scheme, the number of the waterproof bosses is two, the two waterproof bosses are respectively a first boss and a second boss, and the first boss and the second boss are sequentially arranged along the stop table at intervals towards the direction of the leading-in part.

Preferably, the diameter of the stop block is larger than the diameter of the first boss, and the diameter of the first boss is larger than the diameter of the second boss.

As a preferable scheme, the diameter of the charging needle body is 1-5 mm; the diameter of the second boss is 0.1-0.5 mm larger than that of the charging pin body; the diameter of the first boss is 0-0.5 mm larger than that of the second boss; the diameter of the stop table is 0.5-5 mm larger than that of the first boss.

Preferably, the diameter of the stop table is larger than that of the waterproof boss.

Preferably, the introduction portion has a circular truncated cone structure.

Wherein, a conductive structure, including above-mentioned waterproof charging needle.

As a preferred scheme, conductive structure still includes the elastic base, the elastic base be equipped with the through-hole of waterproof charging needle looks adaptation, waterproof charging needle is inserted and is located the through-hole, and with through-hole interference fit.

The beneficial effects of the utility model reside in that:

1. the utility model discloses a waterproof needle that charges simple structure, the perisporium of this needle body that charges are provided with the waterproof boss of at least round, and the effect of waterproof boss is equal to the effect of sealing washer, but has saved the cost and the equipment step of sealing washer, has also avoided the sealing washer to shift in the equipment process and has lost waterproof effect, has improved waterproof performance with the low cost greatly.

2. The utility model discloses an electrically conductive structure assembly is simple, only needs to peg graft waterproof charging needle and elastic base, and waterproof boss and the elastic base interference fit of waterproof charging needle can effectively avoid steam to permeate from the gap between charging needle body and the elastic base, have improved electrically conductive structure's waterproof performance greatly.

Drawings

Fig. 1 is a schematic structural view of the waterproof charging pin of the present invention.

Fig. 2 is a schematic cross-sectional view of the conductive structure of the present invention.

The reference numbers illustrate:

10-waterproof charging pin; 11-a first boss; 12-a second boss; 13-a stop table; 14-an introduction part;

20-an elastic base; 21-through hole.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

Referring to fig. 1, the embodiment provides a waterproof charging pin, which includes a charging pin body, wherein at least one circle of waterproof boss is disposed on an outer circumferential wall of the charging pin body, and the waterproof boss replaces a sealing ring, so that the cost and the assembly step of the sealing ring are omitted, the sealing ring is prevented from being displaced in the assembly process to lose the waterproof function, and the waterproof performance is greatly improved at low cost.

In this embodiment, the number of waterproof bosses is preferably two, namely, a first boss 11 and a second boss 12; the charging pin body is integrally formed with a stop table 13, the first boss 11, the second boss 12 and a lead-in part 14 along the axial direction; the stop table 13, the first boss 11 and the second boss 12 are arranged along the outer circumferential wall of the charging pin body; the lead-in portion 14 is an extension of the charging pin body, and the lead-in portion 14 has a circular truncated cone structure and is retracted from the extension direction of the charging pin body. In the embodiment, the lead-in part 14 can be smoothly inserted into a charging pin mounting hole of an instrument or charging equipment, and the stop table 13 is matched and clamped with the charging pin mounting hole to play a positioning role.

Preferably, the diameter of the stop 13 is larger than the diameter of the first boss 11, and the diameter of the first boss 11 is larger than the diameter of the second boss 12. Specifically, the diameter of the charging pin body is 1-5 mm; the diameter of the second boss 12 is 0.1-0.5 mm larger than that of the charging needle body; the diameter of the first boss 11 is 0-0.5 mm larger than that of the second boss 12; the diameter of the stop table 13 is 0.5-5 mm larger than that of the first boss 11.

Regarding the number of waterproof bosses, one waterproof boss is sufficient in terms of waterproof performance; but in order to prevent improper manual operation, two waterproof bosses are added to play a secondary waterproof role.

Example two

Referring to fig. 2, the present embodiment is a conductive structure of a waterproof charging pin according to the first embodiment, and includes an elastic base 20 and the waterproof charging pin 10 according to the first embodiment, where the elastic base 20 is provided with a through hole 21 adapted to the waterproof charging pin 10, and the waterproof charging pin 10 is inserted into the through hole 21 and is in interference fit with the through hole 21. This embodiment can effectively avoid steam to permeate from the gap between waterproof charging needle 10 and elastic base 20, has improved conductive structure's waterproof performance greatly.

Specifically, the diameter of the charging pin body of the waterproof charging pin 10 of the embodiment is the same as the aperture of the through hole 21 of the elastic base 20, the waterproof charging pin 10 can be smoothly inserted into the through hole 21 through the circular truncated cone structure of the introduction part 14, and since the diameters of the first boss 11 and the second boss 12 are slightly larger than the aperture of the through hole 21, and are about 0.1-1 mm, the first boss 11 and the second boss 12 are in interference fit with the hole wall of the through hole 21 when the waterproof charging pin 10 is inserted into the through hole 21; during the insertion of the waterproof charging pin 10, the diameter of the stop platform 13 is too large than the diameter of the through hole 21, so that the stop platform 13 abuts against the elastic base 20, and the waterproof charging pin 10 stops being inserted. Due to the structure, the waterproof charging needle 10 can be in zero clearance fit with the elastic base 20, and compared with the traditional method of using a sealing ring for waterproofing, the sealing ring and the manual assembly cost are saved; and the sealing ring is assembled artificially, so that the leakage is possible, and the increase of the water leakage risk is avoided.

Preferably, the elastic base 20 is made of elastic material such as silica gel or rubber; and the number of waterproof charging pins 10 is two.

The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by the technical solution of the present invention by those skilled in the art are all within the scope of the present invention as defined by the claims.

Claims (10)

1. The utility model provides a waterproof needle that charges, includes the needle body that charges, its characterized in that: the outer circumferential wall of the charging needle body is provided with at least one circle of waterproof bosses.

2. The waterproof charging pin of claim 1, characterized in that: one end of the charging pin body is provided with a lead-in part.

3. The waterproof charging pin of claim 2, characterized in that: the outer circumferential wall of the one end of needle body of charging far away from the introducing part is equipped with the locking platform, waterproof boss sets up the introducing part with between the locking platform.

4. The waterproof charging pin of claim 3, characterized in that: the waterproof bosses are two in number and are respectively a first boss and a second boss, and the first boss and the second boss are arranged at intervals along the direction of the guide-in part from the stop table.

5. The waterproof charging pin of claim 4, characterized in that: the diameter of the stop table is larger than that of the first boss, and the diameter of the first boss is larger than that of the second boss.

6. The waterproof charging pin of claim 5, characterized in that: the diameter of the charging needle body is 1-5 mm; the diameter of the second boss is 0.1-0.5 mm larger than that of the charging pin body; the diameter of the first boss is 0-0.5 mm larger than that of the second boss; the diameter of the stop table is 0.5-5 mm larger than that of the first boss.

7. The waterproof charging pin of claim 3, characterized in that: the diameter of the stop table is larger than that of the waterproof boss.

8. The waterproof charging pin of claim 2, characterized in that: the leading-in part is of a circular truncated cone structure.

9. An electrically conductive structure, characterized by: comprising the waterproof charging pin according to any one of claims 1 to 6.

10. The conductive structure of claim 9, wherein: the conductive structure further comprises an elastic base, the elastic base is provided with a through hole matched with the waterproof charging pin, and the waterproof charging pin is inserted into the through hole and is in interference fit with the through hole.

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