CN211744108U

CN211744108U - Quick charger with full-package type heat dissipation structure

Info

Publication number: CN211744108U
Application number: CN202020738450.1U
Authority: CN
Inventors: 王爱花
Original assignee: Dongguan Baolaipo Communication Technology Co ltd
Current assignee: Dongguan Baolaipo Communication Technology Co ltd
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2020-10-23
Anticipated expiration: 2030-05-07

Abstract

The utility model discloses a quick charger with a full-wrapping type heat dissipation structure, which comprises a shell, a PCBA component, an elastic sheet, a bottom cover and pins, wherein the wheat pulling sheet is of an integrated structure, the bottom of the wheat pulling sheet is provided with an opening, and the PCBA component is integrally sleeved inside the wheat pulling sheet to form an electrical insulation structure; the cooling fin comprises a left cooling fin and a right cooling fin, namely a left cooling fin and a right cooling fin, wherein the left cooling fin and the right cooling fin are in butt joint to form a sleeve-shaped structure to wrap the Mylar film and the PCBA component inside. The PCBA component is basically and completely wrapped by the radiating fins with almost full-surrounding structures, so that a better radiating effect than that of the traditional radiating fins with one surface and two surfaces can be achieved, and the radiating problem of the quick charger is favorably solved; and adopt grafting and hanging to detain the mode assembly fin, adopt to hold the mode assembly wheat pulling-on piece, adopt to insert to establish the mode and assemble PCBA subassembly, make the assembly of wheat pulling-on piece, fin and PCBA subassembly more convenient and fast like this, the packaging efficiency is higher, and assembly structure is firm.

Description

Quick charger with full-package type heat dissipation structure

Technical Field

The utility model relates to a charger technical field especially relates to a high-power charger that has good heat dispersion, can carry out super fast filling.

Background

With the improvement of living standard, portable electronic products such as smart phones, tablet computers, media players and the like become one of the necessary products in daily life of people, but the charging technology is not developed enough, so the electronic products still need to be charged through a charger. With the performance of electronic products becoming stronger and the screen size becoming larger, the power consumption also increases, but the battery has no breakthrough progress in the aspect of endurance, and at present, the battery is mainly devised in the aspect of charging, that is, a quick charging technology is adopted to accelerate the charging speed as much as possible. The fast charge technique is to increase the charging efficiency by increasing the charging voltage or increasing the charging current, or both. However, the charger generates heat seriously due to large voltage and large current, and the use safety is affected if the heat dissipation performance cannot be effectively improved. Therefore, the inventor adds a heat dissipation sheet (or called a heat dissipation sleeve) in the charger to improve the heat dissipation performance of the charger, and adds a mylar sheet between the heat dissipation sheet and the circuit module to play an insulating role in order to solve the potential safety hazard caused by adding the heat dissipation sheet. However, most of the existing chargers adopt the methods of screws, glue and the like to fix the PCBA component, the radiating fins and the Mylar film, so that the assembling operation is complicated, the glue fixation is not firm, and the PCBA component, the radiating fins and the Mylar film are easy to fall off, so that the potential safety hazard still exists. Meanwhile, the area of the heat sink is generally smaller, and the heat sink is usually disposed close to the component with large heat generation amount, which results in great reduction of the heat dissipation effect. In addition, for the charger with the rotary spreading pin, the elastic sheet is generally fixed by only using a screw, and the elastic sheet is easy to deviate after long use time, so that poor contact is caused.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is the defect of prior art, a charger is filled soon to full package formula heat radiation structure that the radiating effect is better, assembly structure is simpler, the equipment is more convenient, the shell fragment assembly is more firm, the contact is better.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a charger is filled soon to full package formula heat radiation structure, which comprises a housin, the PCBA subassembly, the shell fragment, the bottom and participate in, be provided with the output interface that charges on the casing, the PCBA subassembly is including the PCB board, participate in and install on the bottom cover and form electric connection through contacting with the shell fragment, the whole outside of PCBA subassembly is equipped with the wheat pulling-on piece, the wheat pulling-on piece outside is equipped with the fin, the bottom combines fixedly with the casing to seal PCBA subassembly, fin and wheat pulling-on piece in the casing, shell fragment and PCBA subassembly electric connection, its characterized in that: the wheat pulling-on piece is of an integrated structure, the bottom of the wheat pulling-on piece is provided with an opening, and the PCBA assembly is integrally sleeved into the wheat pulling-on piece to form an electric insulation structure; the heat radiating fins comprise a left heat radiating fin and a right heat radiating fin, wherein the left heat radiating fin and the right heat radiating fin are respectively a left heat radiating fin and a right heat radiating fin, the bottom of the left heat radiating fin is provided with a bottom cover part, the side surface of the left heat radiating fin is provided with a side cover part, the top of the right heat radiating fin is provided with an upper cover part, and the left heat radiating fin and the right heat radiating fin are in butt joint to form a sleeve-;

the lower part of the PCB is provided with a socket, the bottom cover part of the left radiating fin is provided with an inserting strip extending towards the PCB, and the left radiating fin is inserted into the socket of the PCB through the inserting strip to be combined and fixed with the PCBA component; the bottom of the Mylar film is supported by the bottom cover part of the left radiating fin, the right radiating fin is buckled on the top of the Mylar film through the upper cover part of the right radiating fin to realize assembly and fixation, and the PCBA component is pressed against the bottom cover through the PCB to form a fixed structure; the pressing piece is fixedly connected with the bottom cover, and the fixing part of the elastic sheet is pressed and fixed.

Furthermore, the pin adopts a structure of rotating and extending out, and the pin is in contact with the elastic arm of the elastic sheet through the tail part of the pin after rotating to form electrical connection; two pairs of four fixing columns are arranged inside the bottom cover, and each elastic sheet is sleeved on the two fixing columns; the bottom surface of casting die is provided with the fixed orifices that matches with the fixed column, and the casting die passes through the screw and fixes with the bottom locking back, and the upper portion of fixed column inserts in the fixed orifices, forms the fixed structure that compresses tightly to the shell fragment, prevents that the shell fragment from producing because of long-term the use not hard up.

Furthermore, the outer side surfaces of the two elastic sheets are respectively provided with an L-shaped reinforcing arm which is bent downwards, the tail end of the reinforcing arm is provided with a convex buckle which protrudes inwards, and the convex buckle is clamped into two sides of the rotating part of the pin to form a limiting and reinforcing structure for the elastic sheets. When participating in the bullet arm of up pushing up the shell fragment because of the rotation, whole shell fragment all can be dragged, causes the skew very easily, and can restrict this kind of effect of dragging in very little within range through the taut effect of strengthening the arm, and the effect of deuterogamying casting die can solve the not hard up, contact failure problem of shell fragment completely.

Furthermore, the pressing piece is provided with accommodating grooves which are opposite to the elastic arms of the two elastic pieces and are separated by the spacer, the elastic arms are pressed into the accommodating grooves when being extruded towards the pressing piece by the extrusion of the tail parts of the inserting pins, so that the elastic arms can only retreat into the accommodating grooves when being rotated out to extrude the elastic arms, the transverse offset cannot be generated, the pressing piece is matched with the pressing piece to compress the elastic pieces, and the condition that the inserting pins are not in good contact due to the looseness and the offset of the elastic pieces can be thoroughly solved.

Furthermore, the inner surfaces of the side walls of the two sides of the shell are respectively provided with a slot, and the bottom cover is provided with a clamping pin; the two sides of the upper part of the PCB penetrate through the Mylar film and the radiating fins to be inserted in the slots to form an assembly fixing structure with the shell, and the bottom end of the PCB is clamped in the clamping pins to form a limiting fixing structure with the bottom cover. Therefore, the inserting assembly structure for the PCB is formed through the inserting grooves and the clamping pins, the PCB is pressed by the top of the shell and the bottom cover, the assembly of the PCBA component is more convenient and faster, and the assembly efficiency is improved.

Furthermore, the periphery of the bottom cover is respectively provided with clamping strips protruding towards the shell, the bottom of the shell is provided with clamping grooves matched with the clamping strips, the clamping strips are tightly inserted into the clamping grooves to form a combined fixing structure of the shell and the bottom cover, and the assembly is very convenient.

Preferably, the charging output interface comprises a USB interface and two TYPE-C interfaces, and the three interfaces are all arranged at the top of the casing. Therefore, three electronic devices can be charged simultaneously, and the USB interface and the TYPE-C interface can be charged, so that the use of a user can be facilitated.

Preferably, the mylar sheet is made of a PET material, and the heat radiating fins are made of aluminum sheets.

The PCBA component is basically and completely wrapped by the radiating fins with almost full-surrounding structures, so that a better radiating effect than that of the traditional radiating fins with one surface and two surfaces can be achieved, and the radiating problem of the quick charger is favorably solved; and adopt grafting and hanging to detain the mode assembly fin, adopt to hold the mode assembly wheat pulling-on piece, adopt to insert to establish the mode and assemble PCBA subassembly, make the assembly of wheat pulling-on piece, fin and PCBA subassembly more convenient and fast like this, the packaging efficiency is higher, and assembly structure is firm. And the pressing piece is matched with the reinforcing arm to press and pull the elastic sheet, so that the problem of poor electrical contact caused by looseness and deviation of the elastic sheet in the long-term use process can be prevented.

Drawings

FIG. 1 is a three-dimensional structure of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a structural diagram of the utility model with the shell removed;

FIG. 4 is a view of the present invention from another angle after the housing is removed;

FIG. 5 is a view showing the combination of the pressing member and the bottom cover

FIG. 6 is a view showing the assembly structure of the elastic piece and the bottom cover;

FIG. 7 is a structural view of a pressing member.

In the drawing, 1 is a housing, 11 is a card slot, 12 is a slot, 2 is a PCBA assembly, 21 is a PCB, 22 is a socket, 3 is a heat sink, 31 is a left heat sink, 32 is a right heat sink, 33 is a bottom cover portion, 34 is a slip, 35 is a side cover portion, 36 is an upper cover portion, 4 is a mylar sheet, 5 is a bottom cover, 51 is a clip strip, 52 is a clip pin, 53 is a fixed column, 6 is a spring sheet, 61 is an elastic arm, 62 is a reinforcing arm, 63 is a convex buckle, 7 is a pressing piece, 71 is a spacer, 72 is a receiving groove, 73 is a fixed hole, 8 is a pin, 91 is a USB interface, and 92 is a TYPE-C interface.

Detailed Description

In this embodiment, referring to fig. 1 to 7, the fully-enclosed heat dissipation structure quick charger includes a housing 1, a PCBA assembly 2, an elastic sheet 6, a bottom cover 5 and pins 8, the housing 1 is provided with a charging output interface, the PCBA assembly 2 includes a PCB board 21, the pins 8 are mounted on the bottom cover 5 and are electrically connected by contacting with the elastic sheet 6, the PCBA assembly 2 is integrally provided with a mylar sheet 4 at an outer side thereof, a heat sink 3 is provided at an outer side of the mylar sheet 4, the bottom cover 5 and the housing 1 are fixedly combined to enclose the PCBA assembly 2, the heat sink 3 and the mylar sheet 4 in the housing 1, and the elastic sheet 6 is electrically connected with the PCBA assembly 2; the Mylar film 4 is of an integral structure, the bottom of the Mylar film 4 is provided with an opening, and the PCBA component 2 is integrally sleeved into the Mylar film 4 to form an electric insulation structure; the radiating fin 3 comprises a left radiating fin 31 and a right radiating fin 32, wherein the left radiating fin 31 comprises a bottom cover part 33 at the bottom and a side cover part 35 at the side, the right radiating fin 32 comprises an upper cover part 36 at the top, and the left radiating fin 31 and the right radiating fin 32 are butted and combined to form a sleeve-shaped structure so as to wrap the Mylar film 4 and the PCBA component 2 from all directions;

the lower part of the PCB 21 is provided with a socket 22, the bottom cover part 33 of the left radiating fin 31 is provided with an inserting strip 34 extending towards the PCB 21, and the left radiating fin 31 is inserted into the socket 22 of the PCB 21 through the inserting strip 34 to be combined and fixed with the PCBA component 2; the bottom of the Mylar film 4 is supported by the bottom cover part 33 of the left radiating fin 31, the right radiating fin 32 is buckled on the top of the Mylar film 4 through the upper cover part 36 to realize assembly and fixation, and the PCBA component 2 is pressed against the bottom cover 5 through the PCB 21 to form a fixed structure; the pressing piece 7 is connected and fixed with the bottom cover 5, and the fixing part of the elastic sheet 6 is pressed and fixed.

The pin 8 adopts a rotary extending structure, and the pin 8 is in contact with the elastic arm 61 of the elastic sheet 6 through the tail part of the pin after rotating to form electrical connection; two pairs of four fixing posts 53 are arranged inside the bottom cover 5, and each elastic sheet 6 is sleeved on the two fixing posts 53; the bottom surface of casting die 7 is provided with the fixed orifices 73 that matches with the fixed column, and casting die 7 passes through the screw and fixes with bottom 5 locking back, and the upper portion of fixed column 53 inserts in fixed orifices 73, forms the fixed structure that compresses tightly to shell fragment 6, prevents that shell fragment 6 from producing because of long-term the use and becoming flexible.

The outer side surfaces of the two elastic sheets 6 are respectively provided with an L-shaped reinforcing arm 62 which is bent downwards, the tail end of the reinforcing arm 62 is provided with an inward convex buckle 63, and the convex buckles 63 are clamped into the two sides of the rotating part of the pin 8 to form a limiting and reinforcing structure for the elastic sheets 6. When the pin 8 pushes up the elastic arm 61 of the elastic sheet 6 due to rotation, the whole elastic sheet 6 can be dragged to easily cause deviation, the dragging action can be limited in a small range through the tensioning action of the reinforcing arm 62, and the problems of looseness and poor contact of the elastic sheet 6 can be completely solved by matching with the action of the pressing piece 7.

The pressing piece 7 is provided with containing grooves 72 which are opposite to the elastic arms 61 of the two elastic pieces 6 and are separated by the spacer 71, the elastic arms 61 are pressed into the containing grooves 72 when being extruded by the tail parts of the pins 8 and deformed towards the pressing piece 8, so that when the pins 8 are rotated out and the elastic arms 61 are extruded, the elastic arms 61 only retreat into the containing grooves 72 without generating lateral deviation, and the pressing piece 7 is matched with the pressing of the elastic pieces 6, thereby thoroughly solving the problem of poor contact of the pins caused by looseness and deviation of the elastic pieces 6.

The inner surfaces of the side walls of the two sides of the shell 1 are respectively provided with a slot 12, and the bottom cover 5 is provided with a clamping pin 52; the two sides of the upper part of the PCB 21 penetrate through the mylar sheet 4 and the heat sink 3 and are inserted into the slot 12 to form an assembly fixing structure with the casing 1, and the bottom end of the PCB 21 is clamped into the clamping pin 52 to form a limit fixing structure with the bottom cover 5. Therefore, the inserting assembly structure of the PCB 21 is formed by the inserting groove 12 and the clamping pins 52, and the PCB 21 is pressed by the top of the shell 1 and the bottom cover 5, so that the assembly of the PCBA component 2 is more convenient and faster, and the assembly efficiency is improved.

The peripheral edges of the bottom cover 5 are respectively provided with a clamping strip 51 protruding towards the shell 1, the bottom of the shell 1 is provided with a clamping groove 11 matched with the clamping strip 51, and the clamping strip 51 is tightly inserted into the clamping groove 11 to form a combined fixing structure of the shell 1 and the bottom cover 5, so that the assembly is very convenient.

The charging output interface comprises a USB interface 91 and two TYPE-C interfaces 92, and the three interfaces are arranged at the top of the shell 1. Therefore, three electronic devices can be charged simultaneously, and the USB interface and the TYPE-C interface can be charged, so that the use of a user can be facilitated.

The Mylar film 4 is made of PET materials, and the radiating fins 3 are made of aluminum sheets.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, i.e. the present invention is intended to cover all equivalent variations and modifications within the scope of the present invention.

Claims

1. The utility model provides a charger is filled soon to full package formula heat radiation structure, which comprises a housin, the PCBA subassembly, the shell fragment, the bottom and participate in, be provided with the output interface that charges on the casing, the PCBA subassembly is including the PCB board, participate in and install on the bottom cover and form electric connection through contacting with the shell fragment, the whole outside of PCBA subassembly is equipped with the wheat pulling-on piece, the wheat pulling-on piece outside is equipped with the fin, the bottom combines fixedly with the casing to seal PCBA subassembly, fin and wheat pulling-on piece in the casing, shell fragment and PCBA subassembly electric connection, its characterized in that: the wheat pulling-on piece is of an integrated structure, the bottom of the wheat pulling-on piece is provided with an opening, and the PCBA assembly is integrally sleeved into the wheat pulling-on piece to form an electric insulation structure; the heat radiating fins comprise a left heat radiating fin and a right heat radiating fin, wherein the left heat radiating fin and the right heat radiating fin are respectively a left heat radiating fin and a right heat radiating fin, the bottom of the left heat radiating fin is provided with a bottom cover part, the side surface of the left heat radiating fin is provided with a side cover part, the top of the right heat radiating fin is provided with an upper cover part, and the left heat radiating fin and the right heat radiating fin are in butt joint to form a sleeve-;

2. The quick-charging charger with the full-package heat dissipation structure according to claim 1, wherein: the pin is in a rotary extending structure, and the pin is in electrical connection with the elastic arm of the elastic sheet through the contact of the tail part of the pin after rotation; two pairs of four fixing columns are arranged inside the bottom cover, and each elastic sheet is sleeved on the two fixing columns; the bottom surface of casting die is provided with the fixed orifices that matches with the fixed column, and the casting die passes through the screw and fixes with bottom locking back, and the upper portion of fixed column inserts in the fixed orifices, forms the fixed structure that compresses tightly to the shell fragment.

3. The quick-charging charger with the full-package heat dissipation structure according to claim 2, wherein: the outer side surfaces of the two elastic sheets are respectively provided with an L-shaped reinforcing arm which is bent downwards, the tail end of the reinforcing arm is provided with a convex buckle which protrudes inwards, and the convex buckle is clamped into the two sides of the rotating part of the pin to form a limiting and reinforcing structure for the elastic sheets.

4. The quick-charging charger with the full-package heat dissipation structure according to claim 2, wherein: the pressing piece is provided with accommodating grooves which are opposite to the elastic arms of the two elastic sheets and are separated by the spacer, and the elastic arms are pressed into the accommodating grooves when being extruded by the tail parts of the pins and deformed towards the pressing piece.

5. The quick-charging charger with the full-package heat dissipation structure according to claim 1, wherein: the inner surfaces of the side walls of the two sides of the shell are respectively provided with a slot, and the bottom cover is provided with a clamping pin; the two sides of the upper part of the PCB penetrate through the Mylar film and the radiating fins to be inserted in the slots to form an assembly fixing structure with the shell, and the bottom end of the PCB is clamped in the clamping pins to form a limiting fixing structure with the bottom cover.

6. The quick-charging charger with the full-package heat dissipation structure according to claim 1, wherein: the periphery of the bottom cover is respectively provided with a clamping strip protruding towards the shell, the bottom of the shell is provided with a clamping groove matched with the clamping strip, and the clamping strip is tightly inserted into the clamping groove to form a combined fixing structure of the shell and the bottom cover.

7. The quick-charging charger with the full-package heat dissipation structure according to claim 1, wherein: the charging output interface comprises a USB interface and two TYPE-C interfaces, and the three interfaces are arranged at the top of the shell.

8. The quick-charging charger with the full-package heat dissipation structure according to claim 1, wherein: the Mylar film is made of PET materials, and the radiating fins are made of aluminum sheets.