CN220066958U

CN220066958U - Charger

Info

Publication number: CN220066958U
Application number: CN202321693570.4U
Authority: CN
Inventors: 葛曙光; 葛林顺
Original assignee: Foshan Shunde Zhongheng Electronic Co ltd
Current assignee: Foshan Shunde Zhongheng Electronic Co ltd
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2023-11-21
Anticipated expiration: 2033-06-29

Abstract

The utility model discloses a charger, wherein a plastic shell of the charger comprises an annular enclosure and a bottom cross-section panel, an electric cavity is arranged in the annular enclosure, the bottom is fixedly connected with the bottom cross-section panel, and a USB direct current output connector is welded and fixed at the top of an AC-DC conversion charging control circuit board and is connected at a through hole of the USB connector in a penetrating way; two alternating current pins penetrate out of the bottom section plate and are fixed in a sealing way; the cavity opening is fixedly connected with the end cover sealing plate in a sealing way and provided with a USB joint through hole, and the side wall of the annular enclosure is provided with a plurality of small heat dissipation holes; the annular metal heat dissipation coaming and the plastic shell are integrally fixed through injection molding, all heat dissipation small holes are sealed and shielded by the annular metal heat dissipation coaming, and the annular metal heat dissipation coaming which is not shielded is exposed out of the heat dissipation small holes; the annular metal heat dissipation coaming is fixedly arranged on the inner wall of the electric cavity; the AC-DC conversion charging control circuit board is fixedly arranged in the middle of the central ring through hole; the whole heat dissipation area is large, the heat dissipation is fast, the heat dissipation effect is good, and the service life is prolonged; the sealing performance is good.

Description

Charger

Technical Field

The utility model relates to a charging device for mobile phones and notebook computers, in particular to a charger.

Background

1. Patent document publication No.: CN218386907U, disclosing: the charger comprises a charger body 1 and a plug 2, wherein the plug 2 is rotatably arranged on the right side of the charger body 1; further comprises: the PCB 3 is arranged in the charger body 1, the right side of the PCB 3 is in contact with the left side of the plug 2, the upper end and the lower end of the PCB 3 are provided with heat dissipation fans 5, the outer ends of the heat dissipation fans 5 are connected through the output ends of the micro motors, the micro motors at the outer ends of the heat dissipation fans 5 are fixed on the inner wall of the charger body 1, the plug 2 is rotated out of the charger body 1, then the left end of the plug 2 is connected with the PCB 3, then the plug 2 is inserted into a wiring board, current enters the PCB 3 through the plug 2, and the current on the plug 2 is conveyed to the motor, then the charger body 1 can charge other electronic equipment, then the heat generated by the PCB 3 during charging can be led to the copper bars 4, the temperature of the copper bars 4 rises, then the heat dissipation fans 5 are driven to rotate through the output ends of the motor, the heat dissipation fans 5 rotate to blow the temperature on the copper bars 4 to the outside through the 8, then the inside the charger body 1 can be controlled, and the PCB 3 can be synchronously cooled by the filter screen 2, and the PCB 2 can be synchronously cooled when the plug 2 is disconnected with the charger body 2, and the PCB 2 is connected with the charger body 3; the upper and lower both ends of PCB board 3 all are provided with copper bar 4, and the left and right sides end of copper bar 4 is fixed on the inner wall of charger body 1, the fluting on charger body 1 right side can hold plug 2, and the fluting on charger body 1 right side can not influence the rotation of plug 2, the bottom rotation setting of heat dissipation fan 5 is at copper bar 4 upper surface, and the output key-type connection of heat dissipation fan 5 top motor has bull stick 6, the top of bull stick 6 passes through the bearing to be connected in the inside of charger body 1, and the middle part of bull stick 6 is fixed with lug 7, both ends all laminate mutually with filter screen 8 and set up about the lug 7, and filter screen 8 sliding block is in the inslot on charger body 1 surface, the outer end of two sets of filter screens 8 is connected with spring 9, and the right-hand member of spring 9 is connected on the inside grooved inner wall of charger body 1.

The charger of above-mentioned product improves radiating efficiency and radiating effect through increasing parts such as radiating fan 5, copper bar 4, filter screen 8, and its structure is complicated, and manufacturing cost is high, simultaneously, radiating fan 5 can increase the use electric quantity, is unfavorable for energy-concerving and environment-protective, simultaneously, also does not utilize dampproofing and waterproofing.

2. Patent document publication No.: CN219041423U discloses a prevent falling durable formula cell-phone charger, including charger body (1), fixed mounting has connecting port (2) on charger body (1), mounting groove (3) have been seted up with the position that connecting port (2) correspond on the outer wall of charger body (1), two movable grooves (9) have been seted up to the inside symmetry of connecting port (2), and the inside intercommunication setting of mounting groove (3) and movable groove (9), the inside slidable mounting of mounting groove (3) has protection box (4), the end of protection box (4) runs through the inside through mounting groove (3) and extends to in movable groove (9), terminal fixed mounting that mounting groove (3) are located movable groove (9) has block (8). The shape of the blocking block (8) is matched with that of the movable groove (9), and the blocking block (8) is vertically arranged with the mounting groove (3). Through holes (5) are formed in the upper surface of the charger body (1) in a penetrating mode at one ends, corresponding to the protection boxes (4), of the upper surface of the charger body (1), threaded rods (7) are movably mounted in the through holes (5), and the tail ends of the threaded rods (7) penetrate through the through holes (5) and extend into the mounting grooves (3). The upper surface of the threaded rod (7) is fixedly provided with a knob (6), and the outer wall of the knob (6) is provided with anti-skid patterns. The mounting groove (3) is a return groove, and the connecting port (2) is arranged at the center of the mounting groove (3). The mounting groove (3) is a return groove, and the connecting port (2) is arranged at the center of the mounting groove (3).

Above-mentioned charger body (1) shell is the leakproofness, and when charging, charger body (1) can generate heat, and its heat is through the whole heat dissipation of body shell, and especially when charging and using, charger body (1) generates heat the temperature higher, and its radiating efficiency is low, and the effect is not good.

3. The charger cases of the existing common mobile phones and notebook computers are all made of plastics, the circuit board is integrally wrapped, the internal heat is not radiated by a special radiating channel, and some heat is generated during charging, so that the charger cases are heated and warmed integrally, and particularly when the charger cases are used while being charged, the charger cases are higher in heating temperature, the radiating efficiency is low, and the effect is poor; the joint holes and the pin holes of a plurality of chargers are communicated with the inside through gaps, so that when the charger is used in an air-wet environment, the charger is not used for a long time, the charger is easy to get into the inside after moisture regain, and the charging performance is influenced when the charger is used again.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the charger which is reasonable in structural design, the annular metal heat dissipation coaming and the plastic shell are integrally fixed through injection molding, all heat dissipation holes are sealed and shielded by the annular metal heat dissipation coaming, the non-shielded annular metal heat dissipation coaming is exposed out of the heat dissipation holes, the tightness is good, and the heat dissipation effect is improved.

The scheme for solving the technical problems is as follows:

the charger comprises a plastic shell, two alternating current pins, an alternating current-direct current conversion charging control circuit board, a USB direct current output connector and an end cover sealing plate, wherein the plastic shell comprises an annular enclosure and a bottom section plate, an electric cavity is arranged in the annular enclosure, the top of the electric cavity is a cavity opening, the bottom of the annular enclosure is fixedly connected with the bottom section plate, and the cross section of the outer bottom part of the bottom section plate is a plane; a USB direct current output connector is welded and fixed at the top of the alternating current-direct current conversion charging control circuit board; two alternating current pins penetrate out of the bottom section plate and are fixed in a sealing way; the inner ends of the two alternating current pins are connected with an alternating current-direct current conversion charging control circuit board through conductors; the cavity opening is fixedly connected with an end cover sealing plate in a sealing way, a USB joint through hole is formed in the middle of the end cover sealing plate, and the USB direct current output joint is tightly connected in a sealing way and fixed at the USB joint through hole in a penetrating way; the heat-dissipating plate also comprises an annular metal heat-dissipating coaming, and a central annular through hole is arranged in the middle of the annular metal heat-dissipating coaming; the side wall of the annular enclosure is provided with a plurality of small heat dissipation holes; the annular metal heat dissipation coaming and the plastic shell are integrally fixed through injection molding, all heat dissipation holes are sealed and shielded by the annular metal heat dissipation coaming, and the annular metal heat dissipation coaming which is not shielded is exposed out of the heat dissipation holes; the annular metal heat dissipation coaming is fixedly arranged on the inner wall of the electric cavity; the alternating current-direct current conversion charging control circuit board is fixedly arranged in the middle of the central ring through hole.

The charger has the beneficial effects that: two alternating current pins of the product penetrate out of the bottom section plate and are fixed in a sealing way; the cavity opening is fixedly connected with an end cover sealing plate by sealing glue, the USB direct current output connector is tightly connected with the USB connector through hole in a sealing mode and fixed, the annular metal heat dissipation coaming and the plastic shell are integrally fixed in an injection molding mode, the plastic injection molding machine is used for integrally injection molding, all heat dissipation small holes are sealed and shielded by the annular metal heat dissipation coaming, and the annular metal heat dissipation coaming which is not shielded is exposed out of the heat dissipation small holes to form sealed fixed connection; the heat generated by the AC-DC conversion charging control circuit board is radiated to the outside through the annular metal radiating coaming and the radiating small holes, the area of the annular metal radiating coaming is large, the radiation is quick, the radiating effect is improved, and the service life is prolonged; the sealing performance is good, and the structure achieves the waterproof and moisture regaining effects; the structure is simple and the production is easy.

Drawings

FIGS. 1 and 2 are perspective views of the product of the present utility model;

FIG. 3 is a cross-sectional view of a product of the utility model;

FIG. 4 is a split view of the product of the present utility model;

FIG. 5 is a rear perspective view of the end cap seal plate of the product of the present utility model;

FIG. 6 is a cross-sectional view of a product end cap seal plate of the present utility model;

fig. 7 is a schematic diagram of a charging wire of a USB connector of the present utility model.

The electric power charging device comprises a plastic shell 1, an annular enclosure 1A, a bottom section plate 1B, alternating current pins 2, an alternating current-direct current conversion charging control circuit board 3, a USB direct current output connector 4, an end cover sealing plate 5, a USB connector through-connection 51, an electric cavity 6, an annular metal heat dissipation coaming 7, a central annular through hole 71, a heat dissipation small hole 8, a USB connector fixing short pipe 9, a positioning step 10, a rubber sealing gasket 11, a circuit board left slot 12, a circuit board right slot 13 and a USB connector charging wire 14.

Detailed Description

The utility model provides a charger, is mainly applicable to the charger that is cell-phone, notebook computer and uses, and whole square, and it includes plastic casing 1, two alternating current pins 2, alternating current-direct current conversion charge control circuit board 3, USB direct current output connector 4, end cover closing plate 5, and plastic casing 1 is hard plastic casing spare; the two alternating current pins 2 are used for being in butt joint with an alternating current socket; one of the two alternating current pins 2 is connected with the live wire and the other is connected with the zero wire; the plastic shell 1 comprises an annular enclosure 1A and a bottom section plate 1B, an electric cavity 6 is arranged in the annular enclosure 1A, an cavity opening is formed in the top of the electric cavity 6, and the electric cavity 6 is used for arranging an alternating current-direct current conversion charging control circuit board 3; the bottom of the annular enclosure 1A is integrally and fixedly connected with a bottom cross-section plate 1B, the cross section of the outer bottom of the bottom cross-section plate 1B is a plane, and the bottom cross-section plate is attached to an alternating current socket surface for use and is spliced; a USB direct current output connector 4 is welded and fixed at the top of the alternating current-direct current conversion charging control circuit board 3; the AC/DC conversion charging control circuit board 3 is used for converting AC into DC and outputting the DC; the alternating current input voltage of the alternating current-direct current conversion charging control circuit board 3 is 100V-240V; the output direct current voltage of the USB direct current output connector 4 is 5V-10V, and the current is 1A-4A; two alternating current pins 2 penetrate out of the bottom section plate 1B and are fixed in a sealing manner; the inner ends of the two alternating current pins 2 are fixedly connected with the alternating current-direct current conversion charging control circuit board 3 through conductors in a welding way; the sealing gum for the accent seals fixed connection end cover closing plate 5, and USB connects cross-under hole 51 has been seted up at the middle part of end cover closing plate 5, and USB connects cross-under hole 51 for rectangle, and the sealed inseparable cross-under of USB direct current output joint 4 is fixed in USB joint cross-under hole 51 department, can not become flexible, and the main technical improvement of this product lies in: the charger also comprises an annular metal heat dissipation coaming 7, and the coaming is in the shape of a coaming ring; the middle of the annular metal heat dissipation coaming 7 is provided with a central annular through hole 71; the side wall of the annular surrounding shell 1A is provided with a plurality of small heat dissipation holes 8, and 10-50 small heat dissipation holes 8 are formed; the annular metal heat dissipation coaming 7 is arranged on the inner wall of the electric cavity 6; the annular metal heat dissipation coaming 7 and the plastic shell 1 are integrally fixed by injection molding, the annular metal heat dissipation coaming 7 is integrally molded by a plastic injection molding machine, all heat dissipation small holes 8 are sealed and shielded by the annular metal heat dissipation coaming 7, and the annular metal heat dissipation coaming 7 which is not shielded is exposed out of the heat dissipation small holes 8 to form sealed fixed connection; the AC/DC conversion charging control circuit board 3 is fixedly arranged in the middle of the central ring through hole 71; when the electric cavity 6 is in a sealed state, after two alternating current pins 2 are connected with alternating current, the alternating current-direct current conversion charging control circuit board 3 converts the alternating current into direct current, and finally the direct current is output from the USB direct current output connector 4 to charge a mobile phone or a notebook computer, the alternating current-direct current conversion charging control circuit board 3 generates heat, the electric cavity 6 generates sealed heat, the heat of the electric cavity 6 is transferred to the annular metal heat dissipation coaming 7, the annular metal heat dissipation coaming 7 heats up, the heat of the annular metal heat dissipation coaming 7 dissipates heat outwards through the surface exposed at the heat dissipation small holes 8 to achieve the aim of dissipating the heat outwards, the annular metal heat dissipation coaming 7 has a large area and quick heat dissipation, the heat dissipation effect is improved, and the service life is prolonged; meanwhile, the structure achieves the functions of water resistance and moisture regain, external moisture cannot enter the electric cavity 6, and the structure can be applied to humid environments such as construction tunnels, mine underground ocean vessels and the like.

The inner hole of the USB connector through hole 51 is internally provided with a USB connector fixing short pipe 9 in an extending mode, the USB connector fixing short pipe 9 and the end cover sealing plate 5 are integrally formed in an injection molding mode through an injection molding machine, the shape of a pipe hole of the USB connector fixing short pipe 9 is consistent with that of the USB direct current output connector 4, the USB direct current output connector 4 is just suitable for being inserted into the pipe hole to be fixed, looseness is prevented, firmness is improved, and falling, collision and the like are prevented.

The inner hole edge of the USB connector through hole 51 is provided with a circle of positioning step 10, and the end section body of the USB direct current output connector 4 is arranged on the positioning step 10, so that the USB connector hole of the USB direct current output connector 4 is just in butt joint with the USB connector through hole 51, and the USB connector of the USB connector charging wire 14 is in butt joint without barriers.

The root of the USB direct current output connector 4 is fixedly connected with a rubber sealing gasket 11 in a penetrating way, the rubber sealing gasket 11 is contacted with the USB connector fixing short pipe 9 to press a sealing pipe hole gap, moisture/moist air is prevented from entering the electric cavity 6 from the gap between the rubber sealing gasket 11 and the USB connector fixing short pipe, and the waterproof and moisture regain resistance is improved.

The left and right inner walls of the central ring through hole 71 are longitudinally provided with a symmetrical left circuit board slot 12 and a symmetrical right circuit board slot 13 respectively, the left circuit board slot 12 and the right circuit board slot 13 are oppositely arranged, and the left and right edge bodies of the alternating current-direct current conversion charging control circuit board 3 are inserted into the left circuit board slot 12 and the right circuit board slot 13 and fixedly connected by glue, so that the circuit board is just suitable; the structural design is reasonable, and the firmness is good.

The annular metal heat dissipation coaming 7 is made of aluminum or copper, is a general heat dissipation material, and has high heat dissipation efficiency.

The annular enclosure 1A is rectangular, a plurality of small heat dissipation holes 8 are formed in the front side wall and the rear side wall of the annular enclosure, more small heat dissipation holes 8 can be formed, heat dissipation efficiency is improved, small heat dissipation holes 8 are easy to set, and positions are reasonably set.

The hole depth of the small heat dissipation holes 8 is 2 mm or more, and is generally 2 mm-3 mm; the diameter of the small heat dissipation holes 8 is 1-2 mm; thus, in the charging process, the body has heat, if the charger is held by hand and pulled out, the heat dissipation small holes 8 with a certain depth are blocked, hands cannot directly contact the plate surface of the annular metal heat dissipation coaming 7, the hands are prevented from being scalded, and the hands cannot be burnt.

The two alternating current pins 2 and the bottom section plate 1B are integrally injection molded, sealed and fixed, and good in sealing performance and firmness.

The charger also comprises a USB connector charging wire 14, wherein the USB connector charging wire 14 is matched with the USB direct current output connector 4, and the charger is detachably connected in a plug-in manner, so that the charger can be conveniently connected with a mobile phone/a notebook computer for charging.

Claims

1. The charger comprises a plastic shell, two alternating current pins, an alternating current-direct current conversion charging control circuit board, a USB direct current output connector and an end cover sealing plate, wherein the plastic shell comprises an annular enclosure and a bottom section plate, an electric cavity is arranged in the annular enclosure, the top of the electric cavity is a cavity opening, the bottom of the annular enclosure is fixedly connected with the bottom section plate, and the cross section of the outer bottom part of the bottom section plate is a plane; a USB direct current output connector is welded and fixed at the top of the alternating current-direct current conversion charging control circuit board; two alternating current pins penetrate out of the bottom section plate and are fixed in a sealing way; the inner ends of the two alternating current pins are connected with an alternating current-direct current conversion charging control circuit board through conductors; the cavity mouth is sealed fixed connection end cover closing plate, and USB connects cross-under hole has been seted up at the middle part of end cover closing plate, and USB direct current output connects sealed inseparable cross-under and connects cross-under hole department fixed at USB, its characterized in that: the heat-dissipating plate also comprises an annular metal heat-dissipating coaming, and a central annular through hole is arranged in the middle of the annular metal heat-dissipating coaming; the side wall of the annular enclosure is provided with a plurality of small heat dissipation holes; the annular metal heat dissipation coaming and the plastic shell are integrally fixed through injection molding, all heat dissipation holes are sealed and shielded by the annular metal heat dissipation coaming, and the annular metal heat dissipation coaming which is not shielded is exposed out of the heat dissipation holes; the annular metal heat dissipation coaming is fixedly arranged on the inner wall of the electric cavity; the alternating current-direct current conversion charging control circuit board is fixedly arranged in the middle of the central ring through hole.

2. A charger according to claim 1, wherein: the inner hole of the USB connector through hole is internally provided with a USB connector fixing short pipe in an extending mode, the shape of the pipe hole of the USB connector fixing short pipe is consistent with that of the USB direct current output connector, the USB direct current output connector is just suitable, and the USB direct current output connector is inserted into the pipe hole to be fixed.

3. A charger according to claim 2, wherein: the inner hole edge of the USB joint through hole is provided with a circle of positioning step, and the end section body of the USB direct current output joint is arranged on the positioning step.

4. A charger according to claim 2 or 3, wherein: and a rubber sealing gasket is fixedly connected to the root of the USB direct current output connector in a penetrating way, and the rubber sealing gasket is contacted with the USB connector fixing short pipe to press a sealing pipe hole gap.

5. A charger according to claim 1, wherein: the left and right inner walls of the center ring through hole are longitudinally provided with a symmetrical left circuit board slot and a symmetrical right circuit board slot respectively, and the left and right edge bodies of the alternating current-direct current conversion charging control circuit board are inserted into the left circuit board slot and the right circuit board slot and are fixedly connected.

6. A charger according to claim 1 or 2 or 5, wherein: the annular metal heat dissipation coaming is made of aluminum or copper.

7. A charger according to claim 1 or 2 or 5, wherein: the annular enclosure is rectangular, and the front side wall and the rear side wall of the annular enclosure are provided with a plurality of small heat dissipation holes.

8. A charger according to claim 1 or 2 or 5 or 7, wherein: the hole depth of the heat dissipation small holes is 2 mm or more; the diameter of the small heat dissipation holes is 1-2 mm.

9. A charger according to claim 1 or 2 or 5, wherein: the two alternating current pins and the bottom section plate are integrally injection molded, sealed and fixed.

10. A charger according to claim 1 or 2 or 5, wherein: the USB connector charging wire is matched with the USB direct current output connector and is detachably connected in a plug-in mode.