CN212848947U

CN212848947U - USB interface structure, machine body tail cover and electric toothbrush

Info

Publication number: CN212848947U
Application number: CN202022100540.0U
Authority: CN
Inventors: 刘仕华; 李建如; 陈建群
Original assignee: Guangzhou Stars Pulse Co Ltd
Current assignee: Guangzhou Stars Pulse Co Ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-03-30
Anticipated expiration: 2030-09-22

Abstract

The utility model provides a USB interface structure, a machine body tail cover and an electric toothbrush, relating to the technical field of daily articles, wherein the USB interface structure provided by the utility model comprises an interface body, a first pin and a second pin; the interface body is provided with a positive contact and a negative contact which are both used for being connected with an external USB; one end of the first pin is connected with the anode contact, and the other end of the first pin is used for being connected with the main circuit board; one end of the second pin is connected with the negative contact, and the other end of the second pin is used for being connected with the main circuit board. The utility model provides a little circuit board in traditional USB interface structure has been removed to the USB interface structure, is connected external USB and main circuit board through first pin and second pin and realizes the function of charging, has reduced the cost of manufacture of USB interface structure.

Description

USB interface structure, machine body tail cover and electric toothbrush

Technical Field

The utility model belongs to the technical field of daily necessities technique and specifically relates to a USB interface structure, fuselage tail-hood and electric toothbrush are related to.

Background

As shown in fig. 1, fig. 1 is a schematic three-dimensional structure diagram of a USB interface structure of an electric toothbrush in the prior art. The existing USB interface structure is welded on a small circuit board 3 through a metal plate 2 by an interface device 1, a tail shell is positioned by the small circuit board 3, the plastic small end face of the interface device 1 and a tail shell end face compression rubber ring are used for preventing water or preventing water through glue pouring, after the installation is finished, the small circuit board 3 is connected with a main circuit board on an electric toothbrush handle in a 12-group connection mode, the cost of the USB interface structure is higher, and meanwhile, because the glue pouring process and the installation rubber ring can additionally increase the assembly process, the production efficiency is slower.

SUMMERY OF THE UTILITY MODEL

In light of the above-described shortcomings and disadvantages, it is an object of the present disclosure to at least address one or more of the above-described problems in the prior art.

In a first aspect, the present invention provides a USB interface structure, which includes an interface body, a first pin and a second pin;

the interface body is provided with a positive contact and a negative contact, and the positive contact and the negative contact are both used for being connected with an external USB;

one end of the first pin is connected with the positive electrode contact, and the other end of the first pin is used for being connected with the main circuit board;

one end of the second pin is connected with the negative electrode contact, and the other end of the second pin is used for being connected with the main circuit board.

Further, the interface body comprises a plug-in assembly and a rubber ring sleeved on the plug-in assembly;

the plug assembly has the positive contact and the negative contact.

Furthermore, the plug-in assembly comprises a hard rubber part, a sheet metal part and a connecting part which are connected with the hard rubber part;

the sheet metal part is sleeved outside the connecting piece, and a first inserting hole for inserting the external USB is formed between the sheet metal part and the connecting piece;

the connector has the positive contact and the negative contact;

the rubber ring is sleeved outside the hard rubber piece.

In a second aspect, the present invention further provides a tail cover of a fuselage, including a tail shell and the above-mentioned solution, the USB interface structure is inserted in the tail shell.

Furthermore, the inner wall of the tail shell is concavely provided with a sealing groove matched with the rubber ring.

Further, the tail shell is connected with the plug-in assembly in a clamping mode.

Further, the tail shell comprises an outer shell and an inner shell connected with the inner wall of the outer shell;

the inner shell is provided with a second inserting hole for inserting the inserting component;

the shell is equipped with spacing subassembly, spacing subassembly with form the spacing groove between the inner shell top surface, the grafting subassembly stretches out the part epitaxy that second cartridge hole and stretch out has joint portion, joint portion with the spacing groove joint.

Further, the limiting assembly is connected with the shell through a fastener;

or the limiting component and the shell are integrally formed.

Further, the limiting assembly comprises a plurality of limiting buckles connected with the shell.

In a third aspect, the utility model also provides an electric toothbrush, including the above scheme the fuselage tail-hood.

The utility model provides a USB interface structure, fuselage tail-hood and electric toothbrush can produce following beneficial effect:

traditional USB interface structure adopts 12 groups wiring mode to be connected with main circuit board, for prior art, the utility model discloses the little circuit board in traditional USB interface structure has been removed to the USB interface structure that the first aspect provided, is connected external USB and main circuit board through first pin and second pin and realizes the function of charging, has reduced USB interface structure's cost of manufacture.

Compared with the prior art, the utility model discloses the fuselage tailhood that the second aspect provided has tail shell and above-mentioned USB interface structure, and its overall structure is simple, and the cost of manufacture is lower.

Compared with the prior art, the utility model discloses the electronic toothbrush that the third aspect provided has the utility model discloses the fuselage tailhood that the second aspect provided, thereby have the utility model discloses all beneficial effects that the fuselage tailhood that the second aspect provided had.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic three-dimensional structure of a USB interface structure of an electric toothbrush in the prior art;

fig. 2 is a schematic three-dimensional structure diagram of a USB interface structure according to an embodiment of the present invention;

fig. 3 is a schematic three-dimensional structure diagram of a fuselage tail cover according to an embodiment of the present invention;

fig. 4 is a top view of a fuselage tail cap provided by an embodiment of the present invention;

FIG. 5 is a cross-sectional view A-A of FIG. 4;

fig. 6 is a schematic three-dimensional structure diagram of the tail shell according to an embodiment of the present invention.

Icon: 1-an interface device; 2-sheet metal; 3-a small circuit board; 4-an interface body; 41-a plug-in assembly; 411-hard glue; 4111-a clamping part; 412-sheet metal; 413-a connector; 414-first insertion hole; 42-rubber ring; 5-a first pin; 6-a second pin; 7-tail shell; 71-a housing; 72-an inner shell; 721-a second insertion hole; 722-a seal groove; 723-gap; 73-a spacing assembly; 731-limit buckle.

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.

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

An embodiment of the first aspect of the present invention is to provide a USB interface structure, as shown in fig. 2, including an interface body 4, a first pin 5 and a second pin 6;

the interface body 4 is provided with a positive contact and a negative contact which are both used for being connected with an external USB;

one end of the first pin 5 is connected with the anode contact, and the other end of the first pin is connected with the main circuit board;

one end of the second pin 6 is connected with the negative contact, and the other end is used for being connected with the main circuit board.

As shown in fig. 1, little circuit board 3 is installed to traditional USB interface structure, and little circuit board 3 adopts 12 group wiring modes to be connected with main circuit board, the utility model discloses the USB interface structure that the embodiment of first aspect provided reduces to 2 groups by original 12 groups, only remains first pin 5 and second pin 6 that are used for realizing the function of charging, has simplified USB interface structure, reduces its cost of manufacture.

The structure of the interface body 4 will be specifically described below:

as shown in fig. 2, the interface body 4 includes a plug assembly 41 and a rubber ring 42 sleeved on the plug assembly 41; the plug assembly 41 has a positive contact and a negative contact.

Specifically, in the production process, the rubber ring 42 is firstly punched through a mold, and then the rubber ring 42 is placed in another mold to punch the combined structure of the rubber ring 42 and the plug assembly 41. Above-mentioned structure can make rubber ring 42 directly mould plastics on plug assembly 41, and in the assembling process, need not again with rubber ring 42 suit on plug assembly 41, sparingly assembly process.

In at least one embodiment, as shown in fig. 5, the rubber ring 42 is partially embedded in the outer surface of the plug assembly 41, so as to increase the connection area between the rubber ring 42 and the plug assembly 41, and ensure that the rubber ring 42 is more stably sleeved on the plug assembly 41.

As shown in fig. 2 and 5, the plug assembly 41 includes a hard rubber piece 411, and a sheet metal piece 412 and a connecting piece 413 both connected to the hard rubber piece 411; the sheet metal part 412 is sleeved outside the connecting piece 413, and a first inserting hole 414 for inserting an external USB is formed between the sheet metal part and the connecting piece 413; the connection 413 has a positive contact and a negative contact; the rubber ring 42 is sleeved outside the hard rubber piece 411.

Specifically, when the USB connector is used, the external USB connector is inserted into the first insertion hole 414 and electrically connected to the positive contact and the negative contact of the connector 413, so as to achieve the circuit conduction. In this process, sheet metal component 412 plays spacing effect to external USB, protects connecting piece 413 simultaneously, and rubber ring 42 on ebonite 411 can be used for propping up with tail shell 7, plays water-proof effects.

Wherein, the connecting piece 413 can be integrally formed with the hard rubber piece 411. In addition, the sheet metal part 412 is coated at the bottom end of the hard rubber part 411 along the circumferential direction of the hard rubber part 411, the top end of the hard rubber part 411 penetrates through the sheet metal part 412 and is sleeved with the rubber ring 42, and the first pin 5 and the second pin 6 can be both installed on the hard rubber part 411 and are electrically connected with the positive contact and the negative contact on the connecting part 413.

In addition, the hard rubber 411 can be extended with a clamping portion 4111, and the clamping portion 4111 is used for clamping with the tail shell 7 to limit the position of the USB interface structure relative to the tail shell 7.

In at least one embodiment, as shown in fig. 2, the hard adhesive member 411 is extended with two clipping portions 4111, and the two clipping portions 4111 extend away from each other and simultaneously play a role of limiting.

The embodiment of the second aspect of the present invention provides a tail cover of a fuselage, as shown in fig. 3, the embodiment of the second aspect of the present invention provides a tail cover of a fuselage, which includes a tail shell 7 and the USB interface structure, and the USB interface structure is inserted into the tail shell 7.

In order to ensure good sealing performance between the tail shell 7 and the USB interface structure, as shown in fig. 6, a sealing groove 722 matched with the rubber ring 42 is concavely arranged on the inner wall of the tail shell 7.

After the USB interface structure is inserted into the tail shell 7, a certain amount of compression is provided between the rubber ring 42 and the inner wall of the sealing groove 722, so as to compensate the gap between the tail shell 7 and the plug-in component 41, thereby achieving the function of sealing and waterproofing.

The limiting mode between the tail shell 7 and the USB interface structure can be various, and the limiting structure between the two is specifically described as follows:

in some embodiments, to ensure that the plug assembly 41 is securely plugged to the tail housing 7, the tail housing 7 is snapped to the plug assembly 41.

Specifically, the tail shell 7 may have a clamping groove, and at least one of the hard rubber part 411 and the sheet metal part 412 is clamped in the clamping groove.

Specifically, taking fig. 5 as an example, the tail shell 7 includes an outer shell 71 and an inner shell 72 connected to an inner wall of the outer shell 71; the inner housing 72 forms a second insertion hole 721 for inserting the plug assembly 41; the outer shell 71 is provided with a limiting component 73, a limiting groove is formed between the limiting component 73 and the top surface of the inner shell 72, the plug-in component 41 extends out of the second plug-in hole 721, and the extending part extends outwards to form a clamping portion 4111, and the clamping portion 4111 is clamped with the limiting groove.

In some embodiments, the top surface of the inner housing 72 is a flat surface, the bottom surface of the limiting component 73 may be higher than the top surface of the inner housing 72, the limiting groove is formed between the two surfaces, and the limiting component 73 can press the clamping portion 4111 against the top surface of the inner housing 72.

In other embodiments, referring to fig. 5 and 6, a notch 723 is recessed in the top surface of the inner shell 72, the limiting component 73 presses the clamping portion 4111 into the notch 723, the notch 723 can prevent the plug component 41 from moving downward relative to the tail shell 7, and meanwhile, along the circumferential direction of the plug component 41, the notch 723 plays a role in limiting the plug component 41, so as to prevent the plug component 41 from rotating relative to the second insertion hole 721, and the limiting component 73 can prevent the plug component 41 from moving upward relative to the tail shell 7, so that stable installation of the plug component 41 is achieved together, and the position of the plug component 41 does not need to be limited by glue pouring or the like.

When the plug assembly 41 includes the hard rubber member 411, the sheet metal member 412 and the connecting member 413, as shown in fig. 5, the hard rubber member 411 is extended with the above-mentioned clamping portion 4111. Specifically, as shown in fig. 2, the hard adhesive piece 411 is extended with two clipping portions 4111, and the two clipping portions 4111 extend away from each other. Correspondingly, as shown in fig. 6, two notches 723 are recessed in the top surface of the inner housing 72, and each notch 723 is used for limiting one clamping portion 4111.

In addition, as shown in fig. 6, the seal groove 722 may be formed on the inner surface of the inner case 72.

In some other embodiments, the plug assembly 41 may also abut against the tail housing 7 and define the position of the plug assembly 41 by potting or the like.

The connection mode of the limiting component 73 and the shell 71 can adopt various modes, and the connection structure between the limiting component 73 and the shell 71 is described in detail as follows:

in some embodiments, the stop assembly 73 is connected to the housing 71 by fasteners.

Wherein the fastener may be a screw, a pin, etc.

During assembly, the connection between the limiting component 73 and the housing 71 may be removed, the plug-in component 41 is inserted into the second insertion hole 721, and then the limiting component 73 is connected with the housing 71 through the fastener to limit the plug-in component 41. The connection mode can prevent the limiting component 73 from deforming in the assembling process, and the service life of the limiting component 73 is prolonged.

In other embodiments, the stop assembly 73 may be integrally formed with the housing 71, as shown in FIG. 5. That is, during assembly, the plug assembly 41 is pressed down by an external force, so that the limiting assembly 73 is deformed until the plug assembly 41 is clamped into the limiting groove. The connection mode does not need additional auxiliary tools, and the connection is more convenient and simpler.

The structure of the limiting assembly 73 is explained in detail as follows:

as shown in fig. 4 and 6, the limiting assembly 73 includes a plurality of limiting buckles 731 connected to the outer shell 71, and the plurality of limiting buckles 731 jointly press the plug-in assembly 41 against the top surface of the inner shell 72.

Specifically, the position limiting assembly 73 may include two, three, four, etc. position limiting buttons 731.

Taking fig. 6 as an example for specific explanation, the limiting component 73 includes two limiting buckles 731, and the two limiting buckles 731 are distributed oppositely, so that the structure of the limiting component 73 is simplified while the limiting effect is ensured.

Specifically, as shown in fig. 6, to facilitate the installation of the plug assembly 41, the top surface of the stopper extends obliquely downward in a direction near the center of the housing 71.

An embodiment of the third aspect of the present invention provides an electric toothbrush, which includes the above-mentioned tail cover.

The tail cover of the machine body can be connected to the bottom of the electric toothbrush handle, a main circuit board is arranged in the electric toothbrush handle, and the first pin 5 and the second pin 6 can be respectively and electrically connected with the main circuit board.

In summary, the USB interface structure, the tail cover of the body, and the electric toothbrush have the following technical advantages:

1. the small circuit board in the traditional USB interface structure is removed, the external USB is connected with the main circuit board through the first pin and the second pin to realize the charging function, the wiring structure is simplified, the number of the original 12 groups is reduced to 2 groups, and the manufacturing cost of the USB interface structure is reduced;

2. the rubber ring 42 is directly injected on the plug-in component 41, and the rubber ring 42 does not need to be sleeved on the plug-in component 41 in the assembling process, so that the assembling process is saved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The USB interface structure is characterized by comprising an interface body (4), a first pin (5) and a second pin (6);

the interface body (4) is provided with a positive contact and a negative contact, and the positive contact and the negative contact are both used for being connected with an external USB;

one end of the first pin (5) is connected with the positive electrode contact, and the other end of the first pin is connected with the main circuit board;

one end of the second pin (6) is connected with the negative electrode contact, and the other end of the second pin is connected with the main circuit board.

2. The USB interface structure according to claim 1, wherein the interface body (4) comprises a plug-in component (41) and a rubber ring (42) sleeved on the plug-in component (41);

the plug assembly (41) has the positive contact and the negative contact.

3. The USB interface structure according to claim 2, characterized in that the plug-in component (41) comprises a hard rubber piece (411) and a sheet metal piece (412) and a connecting piece (413) both connected with the hard rubber piece (411);

the sheet metal part (412) is sleeved outside the connecting piece (413), and a first inserting hole (414) for inserting the external USB is formed between the sheet metal part and the connecting piece (413);

the connection (413) has the positive contact and the negative contact;

the rubber ring (42) is sleeved outside the hard rubber piece (411).

4. A fuselage tail cap, characterized in that it comprises a tail shell (7) and a USB interface structure according to any one of claims 2 to 3, which is inserted into the tail shell (7).

5. The fuselage tail cover according to claim 4, characterized in that the inner wall of the tail shell (7) is recessed with a sealing groove (722) that cooperates with the rubber ring (42).

6. The fuselage tail cap according to claim 4, characterized in that the tail shell (7) is snapped into the plug-in connection (41).

7. The fuselage tail cover according to claim 6, characterized in that the tail shell (7) comprises an outer shell (71) and an inner shell (72) connected to the inner wall of the outer shell (71);

the inner shell (72) forms a second insertion hole (721) for inserting the plug assembly (41);

outer shell (71) are equipped with spacing subassembly (73), spacing subassembly (73) with form the spacing groove between inner shell (72) top surface, plug-in components (41) stretch out second plug-in mounting hole (721) and the part that stretches out are extended outward and have joint portion (4111), joint portion (4111) with the spacing groove joint.

8. The fuselage tail cap according to claim 7, characterized in that the limiting assembly (73) is connected with the casing (71) by means of a fastener;

or the limiting component (73) and the shell (71) are integrally formed.

9. The fuselage tail cap according to claim 7, characterized in that the stop assembly (73) comprises a plurality of stop buckles (731) connected to the outer shell (71).

10. An electric toothbrush comprising a body tail cap according to any one of claims 4 to 9.