Double-USB D-D voltage converter

Abstract

The utility model relates to the technical field of voltage converters, in particular to a D-D voltage converter with double USBs. Comprising a shell, a connecting plug, a protective sleeve and an electronic component, the shell comprises a bottom plate, a side plate and a limiting assembly, the bottom plate and the side plate are connected to form a first containing cavity, the limiting assembly comprises a plurality of supporting plates and at least one inverted-U-shaped groove, the supporting plates are arranged on the inner surfaces of the side plates, the inverted-U-shaped grooves are formed in the inner surfaces of the side plates, and the distance between the inverted-U-shaped grooves and the opening end of the shell is smaller than that between the supporting plates and the opening end of the shell. The protective sleeve comprises a body, a convex ring and a first convex block, the convex ring is arranged on the outer surface of the body, the first convex block is arranged on the outer surface of the body, the supporting plate is used for supporting the convex ring, and the first convex block is clamped in the inverted U-shaped groove; the supporting plate and the inverted-U-shaped groove limit the protective sleeve up, down, left and right, so that the stability of the assembly structure of the protective sleeve and the shell is realized, the stability of the connection state of the connecting plug and the electronic component is ensured, and the service life of the voltage converter is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of voltage converters, in particular to a dual-USB DD voltage converter. Background Art

[0002] Voltage converters have become an indispensable item in daily life and are used frequently. However, existing voltage converters experience the following issues after repeated use: the plug connector shifts relative to the housing, resulting in poor contact between the charging connector and the plug connector of electronic products, causing unstable charging and affecting normal use. Improvements are needed. Summary of the Invention

[0003] In order to overcome the problem of poor contact of the plug connector after a certain number of uses in the prior art, the purpose of the utility model is to provide a dual USB DD voltage converter to improve the stability of the voltage converter structure and increase the service life.

[0004] In order to achieve the above purpose, the technical solution of the utility model is:

[0005] A dual USB DD voltage converter, comprising a housing, a plug connector, a protective cover and electronic components;

[0006] The shell includes a bottom plate, a side plate and a limiting assembly, the bottom plate and the side plate are connected to form a first accommodating cavity, the limiting assembly includes a plurality of supporting plates and at least one inverted U-shaped groove, the supporting plates are provided on the inner surface of the side plate and extend toward the central axis of the shell, the inverted U-shaped groove is provided on the inner surface of the side plate, the distance between the inverted U-shaped groove and the open end of the shell is less than the distance between the supporting plate and the open end of the shell, and one inverted U-shaped groove is located between two adjacent supporting plates;

[0007] The protective cover includes a body, a convex ring, and a first protrusion. The convex ring is provided on the outer surface of the body and extends away from the body. The first protrusion is provided on the outer surface of the body and extends away from the body. The support plate is used to support the convex ring. The first protrusion is engaged in the inverted U-shaped groove.

[0008] The electronic component is located in the first accommodating cavity, and the plug connector is arranged on the body and electrically connected to the electronic component.

[0009] Furthermore, the inverted U-shaped groove includes horizontal bars and vertical bars, the horizontal bars are connected to the vertical bars, the horizontal bars and vertical bars are both connected to the side panels and protrude from the surface of the side panels, the vertical bars are connected to the support plates, and the horizontal bars are arranged parallel to the support plates.

[0010] Furthermore, the side plate is provided with a side through hole, and the protective cover is provided with a second protrusion, and the second protrusion protrudes into the side through hole.

[0011] Furthermore, the main body includes a top cover and a surrounding portion, the surrounding portion and the top cover are connected to form a second accommodating cavity, the top cover is provided with two through holes, the through holes pass through the top cover along the thickness direction of the top cover, and the plug connector is installed in the second accommodating cavity.

[0012] Furthermore, the main body also includes a plurality of plastic parts, which are arranged on the surrounding part and located in the second accommodating cavity, and the plastic parts are in contact with the plug connector.

[0013] Furthermore, the upper surface of the plug connector protrudes out of the open end of the shell.

[0014] The beneficial effects of the present invention are as follows: a limit assembly is arranged in the shell, the limit assembly includes a support plate and an inverted U-shaped groove, the support plate and the inverted U-shaped groove limit the protective cover up, down, left and right, thereby achieving the stability of the assembly structure of the protective cover and the shell, that is, ensuring the stability of the connection state of the plug connector and the electronic components, and improving the service life of the voltage converter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0017] Figure 3 It is a three-dimensional cross-sectional view of the utility model;

[0018] Figure 4 This is a schematic diagram of the disassembled structure of the housing and protective cover of the utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the housing and protective cover of the utility model;

[0020] Figure 6 This is a schematic diagram of the plug connector and protective cover structure of the utility model.

[0021] Reference numerals include:

[0022] 1—housing 11—bottom plate 12—side plate

[0023] 121—Component 13—Limiting Component 131—Pallet

[0024] 132—inverted U-shaped groove 14—first accommodating cavity 2—plug connector

[0025] 3—protective cover 31—body 311—top cover

[0026] 3111—perforation 312—surrounding part 313—plastic part

[0027] 314 — second accommodating cavity 32 — convex ring 33 — first protrusion

[0028] 34 —Second bump 4 —Electronic component. DETAILED DESCRIPTION

[0029] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention.

[0030] See also Figures 1 to 6 The utility model discloses a dual USB DD voltage converter, comprising a housing 1, a plug connector 2, a protective cover 3 and an electronic component 4;

[0031] The housing 1 includes a bottom plate 11, a side plate 12 and a limiting assembly 13. The bottom plate 11 and the side plate 12 are connected to form a first accommodating cavity 14. The limiting assembly 13 includes a plurality of supporting plates 131 and at least one inverted U-shaped groove 132. The supporting plates 131 are provided on the inner surface of the side plate 12 and extend toward the central axis of the housing 1. The inverted U-shaped groove 132 is provided on the inner surface of the side plate 12. The distance between the inverted U-shaped groove 132 and the open end of the housing 1 is less than the distance between the supporting plates 131 and the open end of the housing 1. One inverted U-shaped groove 132 is located between two adjacent supporting plates 131.

[0032] The protective cover 3 includes a body 31, a convex ring 32, and a first protrusion 33. The convex ring 32 is provided on the outer surface of the body 31 and extends away from the body 31. The first protrusion 33 is provided on the outer surface of the body 31 and extends away from the body 31. The support plate 131 is used to support the convex ring 32. The first protrusion 33 is engaged with the inverted U-shaped groove 132.

[0033] The electronic component 4 is located in the first accommodating cavity 14 , and the plug connector 2 is disposed on the body 31 and electrically connected to the electronic component 4 .

[0034] Specifically, in this embodiment, the dual USB DD voltage converter includes a shell 1, a plug connector 2, a protective cover 3 and an electronic component 4, wherein the shell 1 includes a bottom plate 11, a side plate 12 and a limit assembly 13, the bottom plate 11 and the side plate 12 are detachably connected and assembled into a hollow cube, the limit assembly 13 includes four support plates 131 and two inverted U-shaped grooves 132, each of the four support plates 131 is L-shaped, the four support plates 131 are respectively located at the four corners of the inner side of the shell 1, and the two inverted U-shaped grooves 132 are located at the two opposite side plates 12 in the shell 1, preferably, the support plate 131 and the side plate 12 are integrally formed, and the inverted U-shaped groove 132 and the side plate 12 are integrally formed to improve the stability of the structure, the protective cover 3 includes a body 31, a convex ring 32 and a first protrusion 33, wherein the body 31 is used to accommodate and fix the plug connector 2, the convex ring 32 and the first protrusion 33 The protrusions 33 are fixedly connected to the shell 1 respectively, and play the role of connecting the protective cover 3 to the shell 1, and have the following connection structure: the protruding ring 32 is located at the open end of the main body 31 and extends in the direction away from the main body 31. There are two first protrusions 33, and the two first protrusions 33 are located on opposite sides of the main body 3. After the protective cover 3 enters from the open end of the shell 1, the supporting plate 131 first limits the protruding ring 32, that is, the pre-positioning of the assembly of the protective cover 3 and the shell 1, and then the first protrusion 33 is snapped into the inverted U-shaped groove 132, further realizing the final positioning of the protective cover 3 and the shell 1. The setting of the supporting plate 131 and the inverted U-shaped groove 132 limits the protective cover 3 relative to the shell 1 in the up and down and left and right directions, thereby avoiding the movement of the protective cover 3 relative to the shell 1, that is, improving the stability of the plug connector 2 during use and improving its service life.

[0035] By setting a limit assembly 13 in the shell 1, the limit assembly 13 includes a support plate 131 and an inverted U-shaped groove 132. The support plate 131 and the inverted U-shaped groove 132 limit the protective cover 3 in the up, down, left and right directions, thereby achieving the stability of the assembly structure of the protective cover 3 and the shell 1, that is, ensuring the stability of the connection state of the plug connector 2 and the electronic component 4, and improving the service life of the voltage converter.

[0036] The inverted U-shaped groove 132 includes horizontal bars and vertical bars, and the horizontal bars are connected to the vertical bars. The horizontal bars and vertical bars are both connected to the side panels 12 and protrude from the surface of the side panels 12. The vertical bars are connected to the support plates 131. The horizontal bars are arranged parallel to the support plates 131. There are two vertical bars and one horizontal bar. The vertical bars are connected to the support plates 131, which further improves the stability of the structure.

[0037] The side plate 12 is provided with a side through hole 121, and the protective cover 3 is provided with a second protrusion 34, which protrudes into the side through hole 121. There are two second protrusions 34 and two side through holes 121. The two side through holes 121 are respectively located on opposite sides of the side plate 12, further clamping and fixing the protective cover 3, thereby making the assembly structure more stable and further improving the service life of the voltage converter.

[0038] The body 31 includes a top cover 311 and a surrounding portion 312. The surrounding portion 312 is connected to the top cover 311 to form a second accommodating chamber 314. The top cover 311 is provided with two through-holes 3111. The through-holes 3111 penetrate the top cover 311 along the thickness direction of the top cover 311. The plug connector 2 is installed in the second accommodating chamber 314. The plug connector 2 is fixed in the second accommodating chamber 314 formed by the top cover 311 and the surrounding portion 312 to limit and protect the plug connector 2.

[0039] The main body 31 also includes a plurality of rubber parts 313, which are arranged on the surrounding portion 312 and located in the second accommodating cavity 314. The rubber parts 313 are in contact with the plug connector 2. The setting of the rubber parts 313 fills the gap between the plug connector 2 and the surrounding portion 312, further firmly fixing the plug connector 2 to the protective cover 3, ensuring that the plug connector 2 remains firmly connected after being plugged in and out of the external charging head multiple times.

[0040] The upper surface of the plug connector 2 protrudes out of the open end of the housing 1 for easy use.

[0041] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A dual USB DD voltage converter, characterized by: It comprises a housing (1), a plug connector (2), a protective cover (3) and an electronic component (4); The shell (1) comprises a bottom plate (11), a side plate (12) and a limiting assembly (13); the bottom plate (11) and the side plate (12) are connected to form a first accommodating cavity (14); the limiting assembly (13) comprises a plurality of supporting plates (131) and at least one inverted U-shaped groove (132); the supporting plates (131) are arranged on the inner surface of the side plate (12) and extend toward the central axis of the shell (1); the inverted U-shaped groove (132) is arranged on the inner surface of the side plate (12); the distance between the inverted U-shaped groove (132) and the open end of the shell (1) is smaller than the distance between the supporting plate (131) and the open end of the shell (1); and one inverted U-shaped groove (132) is located between two adjacent supporting plates (131); The protective cover (3) comprises a body (31), a convex ring (32) and a first protrusion (33); the convex ring (32) is provided on the outer surface of the body (31) and extends in a direction away from the body (31); the first protrusion (33) is provided on the outer surface of the body (31) and extends in a direction away from the body (31); the supporting plate (131) is used to support the convex ring (32); and the first protrusion (33) is clamped in the inverted U-shaped groove (132); The electronic component (4) is located in the first accommodating cavity (14), and the plug connector (2) is provided on the main body (31) and is electrically connected to the electronic component (4).

2. The dual USB DD voltage converter according to claim 1, characterized in that: The inverted U-shaped groove (132) includes a horizontal bar and a vertical bar, the horizontal bar is connected to the vertical bar, the horizontal bar and the vertical bar are both connected to the side plate (12) and protrude from the surface of the side plate (12), the vertical bar is connected to the supporting plate (131), and the horizontal bar is arranged parallel to the supporting plate (131).

3. The dual USB DD voltage converter according to claim 1, characterized in that: The side plate (12) is provided with a side through hole (121), and the protective cover (3) is provided with a second protrusion (34), and the second protrusion (34) protrudes into the side through hole (121).

4. The dual USB DD voltage converter according to claim 1, characterized in that: The body (31) includes a top cover (311) and a surrounding portion (312). The surrounding portion (312) is connected to the top cover (311) to form a second accommodating cavity (314). The top cover (311) is provided with two through-holes (3111). The through-holes (3111) penetrate the top cover (311) along the thickness direction of the top cover (311). The plug connector (2) is installed in the second accommodating cavity (314).

5. The dual USB DD voltage converter according to claim 1, characterized in that: The main body (31) further includes a plurality of plastic parts (313), the plastic parts (313) being arranged on the surrounding portion (312) and located in the second accommodating cavity (314), and the plastic parts (313) being in contact with the plug connector (2).

6. The dual USB DD voltage converter according to claim 1, characterized in that: The upper surface of the plug connector (2) protrudes out of the open end of the housing (1).

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