CN216354888U

CN216354888U - Power adapter

Info

Publication number: CN216354888U
Application number: CN202122357394.4U
Authority: CN
Inventors: 郑琦春; 雷长友; 施嘉伟; 徐群峰
Original assignee: iFlytek Co Ltd
Current assignee: iFlytek Co Ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-04-19
Anticipated expiration: 2031-09-27

Abstract

The utility model provides a power adapter, and relates to the technical field of power supplies. The power adapter comprises a shell, an upper cover and an insertion piece, wherein the shell is connected with the upper cover in a matching way; one end of the inserting piece is provided with inserting pins, the upper cover is provided with inserting piece holes, the inserting piece is inserted into the inserting piece holes, the inserting pins are bent, and the bent ends of the inserting pins are abutted to the upper cover. According to the power adapter provided by the utility model, the plug-in pins are arranged on the plug-in pins and are abutted to the upper cover, so that the bent ends of the plug-in pins are tightly abutted to the surface of the upper cover under the condition that the plug-in pins are subjected to external tensile force, the plug-in pins are prevented from being separated from the upper cover, the connection stability and reliability of the plug-in pins and the shell are enhanced, and the strength and safety performance of the power adapter are also improved.

Description

Power adapter

Technical Field

The utility model relates to the technical field of power supplies, in particular to a power adapter.

Background

The power adapter is a power supply voltage conversion device for electronic equipment and electronic appliances, and generally comprises a main body and an insertion piece.

In the prior art, the insertion sheet and the main body are mostly welded and fixed, but along with long-time use and frequent plugging, the connection stability of the insertion sheet and the main body is reduced, the welding part of the insertion sheet and the main body is easy to be detached, the insertion sheet is shaken or falls off, the safety and the reliability of the power adapter during use are influenced, and the service life of the power adapter is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model provides a power adapter, which is used for solving the technical problem of low stability of the connection of an inserting sheet of the power adapter in the prior art.

The utility model provides a power adapter which comprises a shell, an upper cover and an inserting piece, wherein the shell is connected with the upper cover in a matching way;

one end of the inserting piece is provided with inserting pins, the upper cover is provided with inserting piece holes, the inserting piece is inserted into the inserting piece holes, the inserting pins are bent, and the bent ends of the inserting pins are abutted to the upper cover.

The power adapter provided by the embodiment of the utility model further comprises a gasket, wherein the gasket is arranged on one side of the upper cover close to the shell, the gasket is provided with a through hole, and the inserting sheet is accommodated in the through hole;

a convex edge surrounding the inserting sheet hole is arranged on one side, close to the shell, of the upper cover, and the gasket is pressed on the convex edge by the inserting pins;

the gasket is folded to form a connecting part, the connecting part abuts against the upper cover, and the connecting part is used for connecting a wire.

According to the power adapter provided by the embodiment of the utility model, the inserting sheet is provided with the clamping groove, and the clamping groove is integrally connected with the convex edge.

According to the power adapter provided by the embodiment of the utility model, the opening of the shell is provided with the stepped groove, and the bottom of the stepped groove is abutted against the surface of the upper cover close to the inside of the shell.

According to the power adapter provided by the embodiment of the utility model, the upper cover is provided with the fool-proof rib, the bottom of the stepped groove is correspondingly provided with the fool-proof rib groove, and the fool-proof rib is embedded in the fool-proof rib groove.

The power adapter provided by the embodiment of the utility model further comprises a circuit board, a first interface and a second interface, wherein the first interface and the second interface are both fixed on the circuit board;

the shell is provided with a first interface hole and a second interface hole, a first limiting groove is formed in the shell in a mode of surrounding the first interface hole, the first interface is abutted to the groove bottom of the first limiting groove, a second limiting groove is formed in the shell in a mode of surrounding the second interface hole, and the second interface is abutted to the groove bottom of the second limiting groove.

According to the power adapter provided by the embodiment of the utility model, the circuit board comprises a first circuit board and a second circuit board, the first circuit board and the second circuit board are perpendicular to each other, the inner wall of the shell is provided with a first guide rail and a second guide rail, the first circuit board is clamped on the first guide rail, and the second circuit board is clamped on the second guide rail;

the first interface is fixed on the first circuit board, and the second interface is fixed on the second circuit board.

According to the power adapter provided by the embodiment of the utility model, the first interface is a USB interface, and the second interface is a Type-C interface.

According to the power adapter provided by the embodiment of the utility model, at least part of the outer edge of the first limiting groove is provided with the first guide structure, and at least part of the outer edge of the second limiting groove is provided with the second guide structure.

According to the power adapter provided by the embodiment of the utility model, at least one pressing rib is arranged on the surface of one side, close to the shell, of the upper cover, and the pressing rib abuts against the edge of the first circuit board.

According to the power adapter provided by the utility model, the plug-in pins are arranged on the plug-in pins and are abutted to the upper cover, so that the bent ends of the plug-in pins are tightly abutted to the surface of the upper cover under the condition that the plug-in pins are subjected to external tensile force, the plug-in pins are prevented from being separated from the upper cover, the connection stability and reliability of the plug-in pins are enhanced, and the strength and safety performance of the power adapter are also improved.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or 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 those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is an exploded view of a power adapter according to an embodiment of the present invention;

FIG. 2 is a perspective view of a power adapter provided by an embodiment of the present invention;

FIG. 3 is a front view of a power adapter provided by an embodiment of the present invention;

FIG. 4 is a cross-sectional view A-A of the power adapter shown in FIG. 3;

FIG. 5 is a side view of a power adapter provided by an embodiment of the present invention;

FIG. 6 is a cross-sectional view of the power adapter shown in FIG. 5 taken along B-B;

FIG. 7 is a schematic structural diagram of an upper cover according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a gasket provided in accordance with an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of an insert provided in accordance with an embodiment of the present invention;

FIG. 10 is a schematic view of the assembly of the upper cover according to the embodiment of the present invention;

fig. 11 is a schematic structural diagram of a housing according to an embodiment of the present invention.

Reference numerals:

1: a housing; 11: a stepped groove; 110: a fool-proof rib groove;

12: a first interface aperture; 13: a second interface aperture; 14: a first limit groove;

15: a second limit groove; 16: a first guide structure; 17: a second guide structure;

18: a first guide rail; 19: a second guide rail; 2: an upper cover;

21: a blade insertion hole; 22: a convex edge; 23: pressing the ribs;

24: preventing the fool-proof rib; 25: an ultrasonic column; 3: inserting sheets;

31: a pin; 32: a rib is protruded; 33: a card slot;

4: a gasket; 41: a through hole; 42: a connecting portion;

51: a first circuit board; 52: a second circuit board; 53: a first interface;

54: a second interface; 55: a transformer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

As shown in fig. 1, the power adapter provided in the embodiment of the present invention includes a housing 1, an upper cover 2, and an insertion piece 3, wherein the housing 1 and the upper cover 2 are connected in an involutory manner.

One end of the inserting piece 3 is provided with a pin 31, the upper cover 2 is provided with an inserting piece hole 21, the inserting piece 3 is inserted into the inserting piece hole 21, the pin 31 is bent, and the bent end of the pin 31 is abutted to the upper cover 2.

The shell 1 is in a box shape with an opening on one side, the upper cover 2 covers the shell 1, and the shell 1 is fixedly connected with the upper cover 2. The two insertion pieces 3 are used for connecting a power supply, and the number of the insertion pieces 3 may be two or three, for example, as shown in fig. 10, the two insertion pieces 3 are inserted into the upper cover 2 in parallel.

The inserting piece 3 is of an integrated structure, two pins 31 are distributed at intervals along the width direction of the inserting piece 3, and the two pins 31 are bent towards opposite directions. Wherein, the two pins 31 may also be distributed at intervals along the thickness direction of the inserting sheet 3.

According to the power adapter provided by the embodiment of the utility model, the plug-in sheet is provided with the plug pins, and the plug pins are abutted to the upper cover, so that the bent ends of the plug pins are tightly abutted to the surface of the upper cover under the condition that the plug-in sheet is subjected to external tensile force, the plug-in sheet is prevented from being separated from the upper cover, the connection stability and reliability of the plug-in sheet are enhanced, and the strength and safety performance of the power adapter are also improved.

Further, the power adapter provided by the embodiment of the utility model further includes a gasket 4, the gasket 4 is installed on one side of the upper cover 2 close to the inside of the housing 1, as shown in fig. 8, the gasket 4 is provided with a through hole 41, and the inserting piece 3 is accommodated in the through hole 41.

As shown in fig. 7, a convex edge 22 surrounding the insert hole 21 is provided on a side of the upper cover 2 close to the inside of the housing 1, and the pin 31 presses the gasket 4 against the convex edge 22, for example, as shown in fig. 10, the convex edge 22 abuts against the gasket 4.

As shown in fig. 8, the spacer 4 is folded to form a connecting portion 42, the connecting portion 42 abuts against the upper cover 2, and the connecting portion 42 is used for connecting a wire. Wherein the connecting portion 42 is used as a welding point and welded with the conducting wire.

When the inserting sheet 3 is installed, the inserting sheet 3 is firstly inserted into the upper cover 2, the pins 31 protrude outwards relative to the top end of the convex edge 22, the through holes 41 of the gasket 4 are sleeved on the two pins 31, the pins 31 are pressed by a jig, the two pins 31 are respectively bent in opposite directions until the pins 31 are hooked with the gasket 4, and the gasket 4 is abutted against the convex edge 22 under the action of the pins 31.

It can be understood that the gasket 4 is made of rigid material, after the upper cover 2 and the inserting piece 3 are installed, the gasket 4, the upper cover 2 and the inserting piece 31 are tightly connected, and the gasket 4 cannot shake along the length direction of the inserting piece 3.

It can be understood that the aperture of the through hole 41 of the gasket 4 is smaller than that of the insert hole 21, so that the gasket 4 is firmly abutted against the convex edge 22, thereby limiting the movement of the insert 3 in the direction away from the upper cover 2.

As shown in fig. 7, the convex edge 22 protrudes outward along the direction of the upper cover 2 close to the inside of the housing 1, and the convex edge 22 is a rectangular frame, so that the contact area between the gasket 4 and the convex edge 22 is increased, and the gasket 4 is stably abutted to the convex edge 22.

As shown in fig. 10, the connecting portion 42 is a side plate extending from a bent portion on a side of the gasket 4, and when the gasket 4 abuts against the convex edge 22, the connecting portion 42 extends in a direction close to the upper cover 2 and is located between the gasket 4 and the upper cover 2, so that an occupied stacking space is reduced, the structure in the power adapter housing 1 is reasonable and compact, and assembly of each component is facilitated.

It can be understood that the extension length of the connecting portion 42 in the direction approaching the upper cover 2 is less than or equal to the height of the protrusion of the convex edge 22 in the direction approaching the inside of the housing 1, and the connecting portion 42 may or may not abut against the upper cover 2.

Furthermore, the inserting piece 3 is provided with a clamping groove 33, and the clamping groove 33 is integrally connected with the convex edge 22.

As shown in fig. 9, there are two slots 33, the two slots 33 are respectively located on two opposite sides of the width direction of the inserting piece 3, the inserting piece 3 forms a rib 32 due to the arrangement of the slots 33, and the length of the rib 32 in the width direction of the inserting piece 3 is the same as the width of the inserting piece 3.

In one embodiment, the insert 3 is of unitary construction with the cover 2. When connecting upper cover 2 and inserted sheet 3, insert the inserted sheet hole 21 with the one end at participate in 31 place in, make protruding muscle 32 and draw-in groove 33 be located the space that chimb 22 formed, mould plastics upper cover 2 again, make protruding muscle 32 and draw-in groove 33 wrap up in inserted sheet hole 21 by the plastic material, realize that upper cover 2 is connected with the integral type of inserted sheet 3. Because the clamping groove 33 is arranged in the inserting piece 3, the connecting area of the inserting piece 3 and the plastic material in the inserting piece hole 21 is increased, the inserting piece 3 is more firmly fixed in the inserting piece hole 21 and is not easy to fall off, and the connecting reliability of the inserting piece 3 and the upper cover 2 is improved. Note that the pins 31 are located outside the space formed by the collar 22.

In another embodiment, the rib 32 and the slot 33 are fixed in the insert hole 21 by welding, so as to realize the integral connection between the upper cover 2 and the insert 3.

On the basis of any of the above embodiments, as shown in fig. 9, the two pins 31 are axisymmetrical with respect to the central axis of the insert 3, and the distance between the bottom ends of the two pins 31 is smaller than the width of the insert 3. Because the length of the inserting sheet hole 21 is slightly larger than the width of the inserting sheet 3, and the length of the through hole 41 is slightly larger than the distance between the bottom ends of the two pins 31, the difference between the aperture of the through hole 41 of the gasket 4 and the aperture of the inserting sheet hole 21 is increased, so that the gasket 4 is more firmly abutted to the convex edge 22.

As shown in fig. 11, the power adapter provided in the embodiment of the present invention has a stepped groove 11 disposed at an opening of the housing 1, and a groove bottom of the stepped groove 11 abuts against a surface of the upper cover 2 close to the inside of the housing 1.

As shown in fig. 7, the upper cover 2 is provided with an ultrasonic column 25 near the inner surface edge of the housing 1, and when the upper cover 2 and the housing 1 are assembled, the upper cover 2 is embedded in the stepped groove 11, so that the ultrasonic column 25 is melted under the action of ultrasonic waves, thereby realizing the fixed connection between the upper cover 2 and the housing 1. In addition, an adhesive may be coated on the edge of the surface of the upper cover 2 near the inside of the housing 1 to bond the upper cover 2 to the bottom of the stepped groove 11.

Preferably, after the upper cover 2 is assembled with the housing 1, the surface of the upper cover 2 away from the inside of the housing 1 is flush with the outer edge of the housing 1.

Further, the upper cover 2 is provided with a fool-proof rib 24, the bottom of the stepped groove 11 is correspondingly provided with a fool-proof rib groove 110, and the fool-proof rib 24 is embedded in the fool-proof rib groove 110.

As shown in fig. 7, the edge of the upper cover 2 close to the inner surface of the housing 1 is provided with a fool-proof rib 24, and correspondingly, as shown in fig. 11, the bottom of the stepped groove 11 is correspondingly provided with a fool-proof rib groove 110. When assembling upper cover 2 and casing 1, through preventing slow-witted muscle 24 and the cooperation that corresponds of preventing slow-witted muscle groove 110, be convenient for confirm the installation direction of upper cover 2, degree of accuracy and assembly efficiency when having improved the assembly. The fool-proof rib 24 and the fool-proof rib groove 110 may be provided in a plurality, and the present application is not limited specifically.

The power adapter provided by the embodiment of the utility model further comprises a circuit board, a first interface 53 and a second interface 54, wherein the first interface 53 and the second interface 54 are fixed on the circuit board.

The shell 1 is provided with a first interface hole 12 and a second interface hole 13, a first limit groove 14 is arranged around the first interface hole 12 in the shell 1, the first interface 53 is abutted against the groove bottom of the first limit groove 14, a second limit groove 15 is arranged around the second interface hole 13 in the shell 1, and the second interface 54 is abutted against the groove bottom of the second limit groove 15.

As shown in fig. 2, the first interface hole 12 and the second interface hole 13 are located on the surface of the housing 1 opposite to the upper cover 2, the first interface hole 12 corresponds to the first interface 53, the second interface hole 13 corresponds to the second interface 54, and the connector of the external connector is inserted into the first interface 53 through the first interface hole 12 or inserted into the second interface 54 through the second interface hole 13. The first port 53 and the second port 54 may be parallel to each other, perpendicular to each other, or disposed at other angles.

When the first interface 53 and the second interface 54 are assembled, the first interface 53 and the second interface 54 are fixed to the circuit board, and then the circuit board is pushed into the housing 1 until the first interface 53 abuts against the groove bottom of the first limiting groove 14, and the second interface 54 abuts against the groove bottom of the second limiting groove 15.

Further, as shown in fig. 11, the circuit board includes a first circuit board 51 and a second circuit board 52, the first circuit board 51 and the second circuit board 52 are perpendicular to each other, the inner wall of the housing 1 is provided with a first guide rail 18 and a second guide rail 19, the first circuit board 51 is clamped on the first guide rail 18, and the second circuit board 52 is clamped on the second guide rail 19. The first interface 53 is fixed to the first circuit board 51, and the second interface 54 is fixed to the second circuit board 52.

As shown in fig. 3 to 6, the first circuit board 51 and the second circuit board 52 are perpendicular to each other and both located in the housing 1, and the volume of the second circuit board 52 is smaller than that of the first circuit board 51. The first circuit board 51 and the second circuit board 52 are also used for mounting components such as a transformer 55.

Specifically, the first circuit board 51 is provided with a mounting hole, one side edge of the second circuit board 52 is provided with a convex mounting plate, and the mounting plate is inserted into the mounting hole to realize the connection between the first circuit board 51 and the second circuit board 52.

When the first circuit board 51 and the second circuit board 52 are assembled, the first circuit board 51 and the second circuit board 52 are connected, and the first circuit board 51 and the second circuit board 52 are pushed into the housing 1 along the first guide rail 18 and the second guide rail 19. The first guide rail 18 and the second guide rail 19 not only facilitate the assembly of the first circuit board 51 and the second circuit board 52, but also play a role in limiting, and ensure the stability of the first circuit board 51 and the second circuit board 52 in the housing 1.

As shown in fig. 11, the first guide rail 18 and the second guide rail 19 are both in the form of a guide groove, and two first guide rails 18 and two second guide rails 19 are provided, so that the guide grooves on two sides of two opposite side edges of the first circuit board 51 or the second circuit board 52 are slid into the housing 1. In one embodiment, the width of the one-sided guide groove of the first rail 18 and the second rail 19 is 0.2 mm.

The first port 53 and the second port 54 may be the same or different. For example, in the present embodiment, the first interface 53 is a USB interface, and the second interface 54 is a Type-C interface. In addition, a third interface, a fourth interface, etc. may also be provided, and the present invention is not particularly limited.

Further, the outer edge of the first position-limiting groove 14 is at least partially provided with a first guiding structure 16, and the outer edge of the second position-limiting groove 15 is at least partially provided with a second guiding structure 17. The first guide structure 16 and the second guide structure 17 are used for guiding the assembly of the first interface 53 and the second interface 54, so that the first interface 53 and the second interface 54 smoothly abut against the groove bottoms of the first limiting groove 14 and the second limiting groove 15.

In one embodiment, as shown in fig. 11, the first guide structure 16 is disposed on the outer edge portion of the first position-limiting groove 14, the second guide structure 17 is disposed on the outer edge portion of the second position-limiting groove 15, and the first guide structure 16 and the second guide structure 17 are convex-edge-shaped to guide the installation of the first interface 53 and the second interface 54, which is beneficial to increase the assembly speed.

At least one pressing rib 23 is arranged on one side surface of the upper cover 2 close to the inside of the housing 1, and the pressing rib 23 abuts against the edge of the first circuit board 51. After the first circuit board 51 and the second circuit board 52 are assembled, the pressing rib 23 on the upper cover 2 presses the first circuit board 51, so that the first interface 53 and the second interface 54 are tightly abutted to the bottoms of the first limiting groove 14 and the second limiting groove 15, and the first interface 53 and the second interface 54 are prevented from shaking in the housing 1, thereby ensuring the stability and reliability of the first interface 53 and the second interface 54 when the external connector is plugged and pulled out.

For example, as shown in fig. 7, two symmetrical pressing ribs 23 are disposed on a side surface of the upper cover 2 close to the inside of the housing 1, so that the first circuit board 51 is uniformly stressed.

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

Claims

1. A power adapter is characterized by comprising a shell, an upper cover and an insertion piece, wherein the shell is connected with the upper cover in a matching way;

2. The power adapter as claimed in claim 1, further comprising a gasket, the gasket is mounted on one side of the upper cover close to the housing, the gasket is provided with a through hole, and the insertion sheet is accommodated in the through hole;

3. The power adapter as claimed in claim 2, wherein the insert is provided with a slot, and the slot is integrally connected with the flange.

4. The power adapter as claimed in claim 1, wherein the opening of the housing is provided with a stepped groove, and a groove bottom of the stepped groove abuts against an inner surface of the upper cover close to the housing.

5. The power adapter as claimed in claim 4, wherein the upper cover is provided with a fool-proof rib, the bottom of the stepped groove is correspondingly provided with a fool-proof rib groove, and the fool-proof rib is embedded in the fool-proof rib groove.

6. The power adapter as claimed in claim 1, further comprising a circuit board, a first interface and a second interface, both fixed to the circuit board;

7. The power adapter as claimed in claim 6, wherein the circuit board comprises a first circuit board and a second circuit board, the first circuit board and the second circuit board are perpendicular to each other, the inner wall of the housing is provided with a first guide rail and a second guide rail, the first circuit board is clamped on the first guide rail, and the second circuit board is clamped on the second guide rail;

8. The power adapter as claimed in claim 6 or 7, wherein the first interface is a USB interface and the second interface is a Type-C interface.

9. The power adapter as claimed in claim 6, wherein the first retaining groove is provided at least partially with a first guiding structure at an outer edge thereof, and the second retaining groove is provided at least partially with a second guiding structure at an outer edge thereof.

10. The power adapter as claimed in claim 7, wherein the upper cover is provided with at least one pressing rib on a side surface thereof adjacent to the inside of the housing, and the pressing rib abuts against an edge of the first circuit board.