CN219917708U - Universal charger with USB interface - Google Patents
Universal charger with USB interface Download PDFInfo
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- CN219917708U CN219917708U CN202223385904.XU CN202223385904U CN219917708U CN 219917708 U CN219917708 U CN 219917708U CN 202223385904 U CN202223385904 U CN 202223385904U CN 219917708 U CN219917708 U CN 219917708U
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 45
- 230000006978 adaptation Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 244000268590 Euryale ferox Species 0.000 claims 1
- 235000006487 Euryale ferox Nutrition 0.000 claims 1
- 230000007306 turnover Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of chargers and discloses a universal charger with a USB interface, which comprises a charger main body and a conversion plug, wherein a pin accommodating groove is formed in one side end part of the charger main body, a middle-gauge plug or a American-gauge plug is arranged in the pin accommodating groove in a turnover manner, the middle-gauge plug or the American-gauge plug can freely turn over to protrude and be perpendicular to the side surface of the charger main body, a connecting lug is arranged between two pins of the middle-gauge plug or the American-gauge plug in the pin accommodating groove, the conversion plug is provided with pin holes matched with the pins of the middle-gauge plug or the American-gauge plug and a connecting groove matched with the connecting lug, a sliding connection clamping groove is formed in the side part of the connecting lug, a positioning groove is correspondingly formed in the outer end surface of the connecting lug, a sliding connection clamping strip clamped in the sliding connection clamping groove is correspondingly formed in the connecting groove, and the positioning lug is provided with a positioning protrusion correspondingly arranged on an elastic wall; the connection structure of the conversion plug on the charger main body is simple, and the connection structure is stable and firm when the conversion plug is convenient to produce, process and assemble.
Description
Technical Field
The utility model relates to the technical field of chargers, in particular to a universal charger with a USB interface.
Background
The universal charger with the plug comprises a charger main body and the plug, wherein two pins of a American standard or a middle standard are arranged on the charger main body in a turnover manner, and the two pins can be directly turned over to protrude for power plug-in use; the changeover plug comprises plugs with various standard specifications, such as an English plug, an Australian plug and an European plug, and can be firmly connected with the charger main body through the connection structure which is formed by plugging the plugs with different national standards on the two plugs and between the changeover plug and the charger main body under the folding and folding state of the two plugs of the charger main body.
The general charger with the conversion plug adopts a connecting structure between the conversion plug and the charger main body, as disclosed in Chinese patent publication No. CN205791681, the conversion plug is connected with the pin adaptation of the charger main body through the pin holes, meanwhile, the groove of the conversion plug is matched with the flange in the concave connecting part of the charger main body in an adaptation way, and the conversion plug is fixedly connected with the charger main body by a clamping block arranged on the concave connecting part and a clamping groove arranged on the conversion plug in a clamping way; the clamping block of the clamping block and clamping groove structure is arranged on the front side of the inner side of the concave connecting part parallel to the flange, the clamping groove is arranged on the bottom surface of the plate body connected with the two pin holes, and the connecting structure is simpler and weaker in firmness and strength. Another connection structure is that, as disclosed in chinese patent publication No. CN215497305, a T-shaped groove is provided on a structure similar to the flange of the concave connection portion, and a structure for mounting an insert block and an elastic member is provided inside the T-shaped groove, a T-shaped block is provided between pin holes of the conversion plug and a card slot is provided on the T-shaped block, the conversion plug is fixedly connected to the charger main body by sliding the T-shaped block into the card slot of the T-shaped block and connecting the T-shaped block under the elastic force of the elastic member; compared with the first connecting structure, the connecting structure has the advantages of greatly improved structural firmness and stability, higher firmness and stability, complex structure, and increased production cost and production and assembly complexity.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide the universal charger with the USB interface, which has the advantages that the connection structure of the conversion plug on the charger main body is simple, the production, the processing and the assembly are convenient, and meanwhile, the connection structure is stable and the firmness is good.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the universal charger with the USB interface comprises a charger main body and a conversion plug, wherein a pin accommodating groove is formed in one side end part of the charger main body, a middle plug or a American plug is arranged in the pin accommodating groove in a turnover mode, the middle plug or the American plug can freely turn over to protrude and be perpendicular to the side surface of the charger main body, a connecting lug is arranged between two pins of the middle plug or the American plug in the pin accommodating groove, a pin hole matched with the pin of the middle plug or the American plug and a connecting groove matched with the connecting lug are formed in the conversion plug, a sliding connection clamping groove is formed in the side part of the connecting lug, a positioning groove is formed in the outer end surface of the connecting lug, a sliding connection clamping strip which is correspondingly provided with a sliding connection clamping strip which is clamped in the sliding connection clamping groove is correspondingly arranged in the connecting groove, and a positioning bulge is arranged on the elastic wall corresponding to the positioning groove; the conversion plug is connected with the connection lug in a matched manner by sliding the sliding connection clamping strip into the sliding connection clamping groove, and is fixedly positioned by positioning the positioning protrusion on the elastic wall to the positioning groove on the outer end surface of the connection lug, so that the connection structure is simple, the connection structure can be molded by one-time injection molding along with the shell of the charger main body and the rear tail cover of the conversion plug in terms of production and processing, the production and processing are convenient, and meanwhile, the trouble in production and assembly is not increased; and the connection structure is very good in the aspect of firmness and stability.
Preferably, the sliding connection clamping grooves are arranged on two sides of the root parts of the inner side ends of the connecting convex blocks, and the sliding connection clamping strips are arranged on two sides of the opening of the connecting grooves opposite to the elastic wall; the connection fit between the connection groove and the connection convex block is more stable and tight.
Preferably, the conversion plug comprises a front shell and a rear tail cover, the rear tail cover is covered and fixed on the front shell, the pin holes are convexly arranged on the cover surface of the rear tail cover, and parallel strip-shaped grooves are formed in the cover surface of the rear tail cover at positions corresponding to the connecting grooves to form elastic walls; the elastic wall and the positioning bulge can be synchronously molded out in one step during injection molding of the rear tail cover, and the elastic wall has elastic deformation capability, so that the positioning bulge has movement capability during positioning fit or detachment with the positioning groove, and meanwhile, the elastic wall is firm in connection with the rear tail cover and is not easy to break.
The utility model has the following beneficial effects:
the universal charger with the USB interface has the advantages that the connection structure of the conversion plug on the charger main body is simple and firm, the stability is good, the connection structure can be formed by one-time injection molding along with the shell of the charger main body and the rear tail cover of the conversion plug in production and processing, the production and processing are convenient, and meanwhile, the trouble in production and assembly is not increased.
Drawings
FIG. 1 is a block diagram of a universal charger with USB interface according to the present utility model;
FIG. 2 is a diagram showing the structure of a conversion plug of the universal charger with USB interface of the present utility model;
FIG. 3 is a rear end cap block diagram of the conversion plug of FIG. 2;
FIG. 4 is a front housing block diagram of the conversion plug of FIG. 2;
FIG. 5 is a main body structure diagram of a universal charger with USB interface according to the present utility model;
fig. 6 is a main casing structure view of the charger main body of fig. 5;
fig. 7 is an electrical connection diagram of the middle plug or the American plug of the charger main body and the circuit board in fig. 5;
FIG. 8 shows an English standard conversion plug of the universal charger with USB interface of the present utility model;
fig. 9 shows an euro-type conversion plug of the universal charger with a USB interface according to the present utility model.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific embodiments so as to more clearly understand the technical ideas claimed in the present utility model.
As shown in fig. 1-9, the universal USB interface charger includes a charger main body 1 and a conversion plug, the charger main body 1 includes a main housing 11 and a circuit board 12 is installed in the main housing 11, the circuit board 12 is connected with a USB interface and a Type-C interface and is fixed in the main housing 11 by a tail cover, the circuit board 12 is electrically connected with a first conductive contact 13, the first conductive contact 13 is installed on a contact bracket 14 in a positioning manner, a middle plug or a American plug 15 is provided with an insulation adapter 16, a conversion slot structure 17 for rotating and installing the insulation adapter 16 is formed between the contact bracket 14 and the main housing 11, the contact bracket 14 is fastened on the main housing 11, and the inner end of the middle plug or the American plug 15 extends to expose outside the insulation adapter 16 to be in electrical contact with the first conductive contact 13. A pin accommodating groove 18 is formed in one side end of the main shell 11, a middle gauge plug or a American gauge plug 15 is arranged in the pin accommodating groove 18 and can freely turn over to protrude in the pin accommodating groove 18 and be perpendicular to the side of the main shell 11, a connecting lug 19 is arranged between two pins 150 of the middle gauge plug or the American gauge plug 15 in the pin accommodating groove 18, sliding connection clamping grooves 191 are formed in two sides of the root of the inner side end of the connecting lug 19, and a positioning groove 192 is formed in the outer end face of the connecting lug 19.
The conversion plug comprises an Australian standard conversion plug 2, an English standard conversion plug 3 and an European standard conversion plug 4, and the Australian standard conversion plug 2, the English standard conversion plug 3 and the European standard conversion plug 4 are mainly different in that the conversion pins 20 are arranged differently and respectively correspond to the English standard pins, the Australian standard pins and the European standard pins. The conversion plug comprises a front shell 21 and a rear tail cover 22, wherein the conversion pins 20 are arranged on the front shell 21, the rear tail cover 22 is covered and fixed on the front shell 21, pin holes 23 matched with pins 150 of a middle plug or a American plug 15 and connecting grooves 24 matched with connecting lugs 19 are formed in the cover surface of the rear tail cover 22, parallel strip-shaped grooves 25 are formed in the cover surface of the rear tail cover 22 at positions corresponding to the connecting grooves 24 to form elastic walls 26, sliding connection clamping strips 241 which are clamped in sliding connection clamping grooves 191 are arranged on two sides of an opening of the connecting grooves 24 opposite to the elastic walls 26, and the sliding connection clamping strips 241 are clamped in the sliding connection clamping grooves 191 to enable the connecting grooves 24 to be matched and connected with the connecting lugs 19, so that the connecting grooves 24 and the connecting lugs 19 are tightly and firmly matched and connected. The elastic wall 26 is provided with the positioning protrusion 261 corresponding to the positioning groove 192, the elastic wall 26 and the positioning protrusion 261 can be synchronously molded in one step during injection molding of the rear tail cover 22, and the elastic wall 26 has elastic deformation capability, so that the positioning protrusion 261 has movement capability during positioning fit or detachment with the positioning groove 192, and meanwhile, the elastic wall 26 is relatively firm in connection of the rear tail cover 22 and the elastic wall 26 is not easy to break.
In other embodiments, the sliding engagement slot 191 may be disposed on other positions on both sides of the connection bump 19, or on a single side of the connection bump 19.
The structure of the conversion plug further comprises: conductive contact grooves 27 are formed in the inner side communication pin holes 23 of the rear tail cover 22, contact positioning columns 28 are formed in the inner side surface of the rear tail cover 22, and second conductive contacts (not shown) are mounted in the conductive contact grooves 27 and positioned and connected to the contact positioning columns 28, one ends of the second conductive contacts are electrically connected with the conversion pins 20, and the other ends of the second conductive contacts extend into the pin holes 23 and can be electrically contacted with pins 150 of the medium-sized plug or the American-standard plug 15. The outer ends of the pin holes 23 are further connected through a connecting part 231, the front shell 21 is provided with a rear convex wall 211 which is spliced corresponding to the connecting part 231 in a protruding mode, the connecting part 231 is provided with a fastening hole 232, the inner side of the rear convex wall 211 is provided with a screw hole column 212, for example, after the rear tail cover 22 is buckled and covered on the front shell 21, the rear tail cover 22 is connected to the fastening hole 232 and the screw hole column 212 through screws, and the rear tail cover 22 is fastened on the front shell 21. Reinforcing ribs 220 are further added on the inner side of the rear tail cover 22, the reinforcing ribs 220 are distributed on the side parts of the strip-shaped grooves 25 and extend to the side parts of the fastening holes 232 of the connecting parts 231, so that the overall structural strength of the positions of the pin holes 23 and the elastic walls 26 is improved on the back surface of the rear tail cover 22.
The conversion plug is clamped in the sliding clamping groove 191 through the sliding clamping strip 241, so that the connecting groove 24 is connected with the connecting convex block 19 in an adapting way, and is positioned and fixed through the positioning protrusion 261 on the elastic wall 26 and the positioning groove 192 connected with the outer end surface of the connecting convex block 19, the connection structure is simple, the connection structure can be molded by one-time injection molding along with the shell of the charger main body and the rear tail cover of the conversion plug in terms of production and processing, and the production and processing are convenient without increasing the trouble in production and assembly; and the connection structure is very good in the aspect of firmness and stability.
Various other corresponding changes and modifications will occur to those skilled in the art from the foregoing description and the accompanying drawings, and all such changes and modifications are intended to be included within the scope of the present utility model as defined in the appended claims.
Claims (8)
1. The utility model provides a universal charger of USB interface, includes charger main part and changeover plug, a side tip of charger main part is equipped with the pin holding tank, the upset is equipped with well rule plug or American rule plug in the pin holding tank, well rule plug or American rule plug can freely overturn to outstanding and perpendicular to the side of charger main part, be located in the pin holding tank be equipped with the connection lug between two pins of well rule plug or American rule plug, changeover plug be equipped with the pin hole of the pin adaptation of well rule plug or American rule plug and with the spread groove of connection lug adaptation, its characterized in that the lateral part of connection lug is equipped with the slip joint draw-in groove the outer terminal surface of connection lug is equipped with the constant head tank, the spread groove corresponds be equipped with the slip joint draw-in strip of slip joint draw-in groove, the constant head tank corresponds the constant head tank has the location arch, the elastic wall is located to the location arch.
2. The universal charger of claim 1, wherein the sliding connection clamping groove is arranged at two sides of the root part of the inner side end of the connecting convex block, and the sliding connection clamping strip is arranged at two sides of the opening of the connecting groove opposite to the elastic wall.
3. The universal charger of claim 1 or 2, wherein the conversion plug comprises a front housing and a rear tail cover, the rear tail cover is fixedly covered on the front housing, the pin holes are convexly arranged on the cover surface of the rear tail cover, and parallel strip-shaped grooves are formed on the cover surface of the rear tail cover corresponding to the connecting grooves to form the elastic wall.
4. The universal charger for USB interface as recited in claim 3, wherein said front housing is provided with a conversion pin, said pin hole is provided with a conductive contact slot on the inner side of said rear tail cover, and a contact positioning column is provided on the inner side of said rear tail cover; the second conductive contact is arranged in the conductive contact groove and is positioned and connected with the contact positioning column, one end of the second conductive contact is electrically connected with the conversion pin, and the other end of the second conductive contact extends into the pin hole.
5. The universal charger of claim 4 wherein the outer ends of the pin holes are connected by a connecting portion, the front housing extends in a rearwardly convex manner and has a rear convex wall which is correspondingly spliced with the connecting portion, the connecting portion is provided with a fastening hole, and the inner side of the rear convex wall is provided with a screw hole column.
6. The universal charger of claim 5 wherein the inside of the back tail cover is provided with reinforcing ribs which are distributed on the side of the strip-shaped groove and extend to the side of the fastening hole of the connecting part.
7. The universal charger of claim 1 or 2, wherein the charger body comprises a main housing and a circuit board is mounted in the main housing, the circuit board is electrically connected with a first conductive contact, the first conductive contact is positioned and mounted on a contact support, the medium plug or the american plug is provided with an insulating adapter seat, a transfer slot structure for rotatably mounting the insulating adapter seat is formed between the contact support and the main housing, the contact support is fastened on the main housing, and the inner end of the medium plug or the american plug extends to expose out of the insulating adapter seat to be in electrical contact with the first conductive contact.
8. The universal charger for USB interfaces as recited in claim 4, wherein said conversion pins comprise an english pin, an australian pin, and an euryale pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223385904.XU CN219917708U (en) | 2022-12-16 | 2022-12-16 | Universal charger with USB interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223385904.XU CN219917708U (en) | 2022-12-16 | 2022-12-16 | Universal charger with USB interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219917708U true CN219917708U (en) | 2023-10-27 |
Family
ID=88465542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223385904.XU Active CN219917708U (en) | 2022-12-16 | 2022-12-16 | Universal charger with USB interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219917708U (en) |
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2022
- 2022-12-16 CN CN202223385904.XU patent/CN219917708U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |