CN220510794U - Double-circuit charger convenient to heat dissipation - Google Patents

Abstract

The utility model discloses a double-circuit charger convenient for heat dissipation; relates to the technical field of chargers; the problem of poor heat dissipation performance of the double-circuit charger in the prior art is solved; the double-circuit charger comprises a main board and a shell, wherein a front radiating hole and a power input end are formed in the front side wall of the shell, a fan is arranged in the shell at a position corresponding to the front radiating hole, the fan is electrically connected with the charging module, the power output end, the USB output end and a rear radiating hole are formed in the rear side wall of the shell, and the front radiating hole and the rear radiating hole are not in the same straight line; the charging module comprises a substrate and a charging module arranged on the substrate, the power supply module comprises a U-shaped plate arranged on the other side of the substrate opposite to the charging module and a power supply module arranged in the U-shaped plate, and heat conducting cotton is respectively arranged on the outer walls of the left side and the right side of the U-shaped plate; the double-circuit charger has good heat dissipation performance.

Description

Double-circuit charger convenient to heat dissipation

Technical Field

The utility model relates to the technical field of chargers, in particular to a double-circuit charger convenient for heat dissipation.

Background

In recent years, along with the great support of industrialized construction and popularization and application of lithium batteries in China, the industrialized progress of lithium batteries in China is in the leading position in the world gradually. The lithium battery is widely applied in the fields of unmanned aerial vehicles, unmanned ships, electric mobility tools and the like, and the unmanned aerial vehicles, electric automobiles and the like need to use a large amount of lithium battery packs to ensure the endurance of the lithium battery packs. Generally, after the lithium battery pack is exhausted, a charger is required to supplement the electric energy.

However, the existing charger for lithium batteries generally only can output one voltage value independently, the battery capacity of the unmanned aerial vehicle and the like is generally larger and may have more than one group of batteries, the power consumption in the flying process is huge, frequent rapid charging is required for a plurality of batteries, and the utilization rate of the charger is definitely greatly reduced by charging only one battery at a time, so that a double-path charger convenient for heat dissipation needs to be developed, and two batteries can be charged simultaneously.

Patent application CN 206471869U discloses an unmanned aerial vehicle charger, comprising an upper cover, a lower cover and a main board, wherein the upper cover is in snap connection with the lower cover, the main board is fixedly arranged in the middle of the lower cover, the main board comprises a power supply module, a USB input end, a vehicle-mounted input end and a mains supply input end, the USB input end, the vehicle-mounted input end and the mains supply input end are respectively electrically connected with the power supply module, an opening is arranged on the lower cover,

the openings correspond to the USB input end, the vehicle-mounted input end and the mains supply input end respectively; the number of the output ends can be controlled through a change-over switch, and one or more charges are selected according to different environments. This unmanned aerial vehicle charger is charged together by two sets of batteries, but inside only has a set of charging circuit, just the DC head divides two sets of simultaneously to charge two sets of batteries, the efficiency of charging is very low like this, more serious is like two sets of batteries insert simultaneously on a DC head to charge, it is just that two batteries are parallelly connected to charge, two sets of batteries can appear mutually interfering phenomenon like this when charging, if two sets of battery voltages are different still can have the phenomenon that high-voltage battery discharged to low-voltage battery, like two sets of battery voltages differ greatly, the phenomenon that instantaneous discharge current is very big can appear, like this have certain influence to the life-span of battery.

Further, patent application CN 208707368U discloses a double-circuit interference-free high-precision battery charger, which comprises a first group of battery charging circuits and a second group of battery charging circuits, wherein the first group of battery charging circuits comprises a rectification integrated circuit BD1, an inductor L1, a transformer T1A, T1B, a chip U1, triodes Q1 and Q2 and light emitting diodes LED1 and LED2, a pin 3 of the rectification integrated circuit BD1 is connected with a fuse F1 in series and then is connected with a commercial power AC-L, a pin 4 of the rectification integrated circuit BD1 is connected with the commercial power AC-N, a pin 1 and a pin 2 of the rectification integrated circuit BD1 are connected with an inductor L1, and the inductor L1 is connected with one end of a primary main winding of a transformer T1A. The two-way interference-free high-precision battery charger is completely independent through two groups, and can simultaneously realize a high-reliability charging circuit for two groups of batteries, thereby greatly improving the charging efficiency of the batteries. The patent application does not disclose a housing structure of the charger.

If the first and second sets of battery charging circuits disclosed in patent application CN 208707368U are combined with the upper and lower cover charger housing structures disclosed in patent application CN 206471869U, the following problems still remain with the obtained two-way charger: in the charging process, the two-way charger has larger heat release amount than the common one-way charger, better heat dissipation is needed to ensure long-time stable work, and the charger disclosed in patent application document CN 206471869U lacks a necessary heat dissipation structure and cannot meet the use requirement.

It can be seen that there is still room for improvement in the dual-path charger in the prior art, and a dual-path charger convenient for heat dissipation needs to be further designed.

Disclosure of Invention

The utility model aims at: in order to solve the technical problems, the double-circuit charger convenient for heat dissipation is provided.

The utility model adopts the following technical scheme for realizing the purposes:

a double-circuit charger convenient for heat dissipation. The double-circuit charger comprises a main board and a shell arranged outside the main board, wherein the main board comprises a charging module, a power input end, a power output end and an optional USB output end, the power module is electrically connected with the charging module, the shell comprises an upper shell and a lower shell which are buckled up and down, a plurality of through holes are formed in the shell, the through holes correspond to the power input end, the power output end and the USB output end respectively, and the power module is a double-circuit non-interference charging circuit. The charging module comprises a substrate and a charging module arranged on the substrate, the power module comprises a U-shaped plate arranged on the substrate and on the other side opposite to the charging module and a power module arranged in the U-shaped plate, and heat conducting cotton is respectively arranged on the outer walls of the left side and the right side of the U-shaped plate.

Further, the front heat dissipation hole and the power output end are on the same straight line, the power input end and the rear heat dissipation hole are on the same straight line, and the USB output end is positioned between the power output end and the rear heat dissipation hole.

Further, the heat conducting cotton outside is provided with the heat conduction sheetmetal that shells inner wall contacted.

Further, a heat conducting adhesive is arranged between the heat conducting metal sheet and the shell.

Further, grooves are formed in the left outer wall and/or the right outer wall of the shell.

Further, at least two of the grooves are arranged side by side.

Further, at least two of the grooves are arranged side by side in a lateral direction.

The beneficial effects of the utility model are as follows:

1. the front radiating holes and the rear radiating holes are oppositely arranged, so that air convection is convenient to take away heat in the double-circuit charger.

2. According to the utility model, the front heat dissipation hole and the rear heat dissipation hole are not in the same straight line, and are arranged in a staggered manner, so that the air duct in the shell is S-shaped, and the air duct is not biased to a single side, thereby being more beneficial to uniform heat dissipation in the heating position in the double-circuit charger.

3. The main heating part of the main board is positioned in the power module, and the U-shaped board has the function of transmitting heat to the shell through the heat conducting cotton so as to be dissipated.

Drawings

Fig. 1 is a schematic perspective view of a dual-path charger with heat dissipation convenience according to the present utility model;

FIG. 2 is a schematic diagram of another three-dimensional structure of a two-way charger with heat dissipation convenience according to the present utility model;

fig. 3 is a schematic top view of a motherboard of a dual-path charger with heat dissipation convenience according to the present utility model;

fig. 4 is a schematic perspective view of a motherboard of a dual-path charger with heat dissipation convenience according to the present utility model;

reference numerals: 1-a charging module; 101-a substrate; 102-a charging module; 2-a power module; 201-U-shaped plates; 202-a power module; 3-a power input; 4-a power supply output; a 5-USB output terminal; 6-an upper housing; 7-a lower housing; 8-through holes; 9-front heat dissipation holes; 10-a fan; 11-rear heat dissipation holes; 12-heat conducting cotton; 13-an output plug; 14-a heat conductive metal sheet; 15-grooves.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1 to 4, the present embodiment provides a two-way charger that facilitates heat dissipation. The double-circuit charger comprises a main board and a shell arranged outside the main board, wherein the main board comprises a charging module 1, a power supply module 2 electrically connected with the charging module 1, a power supply input end 3, a power supply output end 4 and an optional USB output end 5, the shell comprises an upper shell 6 and a lower shell 7 which are buckled up and down, a plurality of through holes 8 are formed in the shell, the through holes 8 respectively correspond to the power supply input end 3, the power supply output end 4 and the USB output end 5, the power supply module 2 is a double-circuit non-interference charging circuit, a front radiating hole 9 and the power supply input end 3 are formed in the front side wall of the shell, a fan 10 is arranged in the position, corresponding to the front radiating hole 9, in the shell, the fan 10 is electrically connected with the charging module 1, the power supply output end 4, the USB output end 5 and the rear radiating hole 11 are arranged in the rear side wall of the shell, and the front radiating hole 9 and the rear radiating hole 11 are not in a straight line; the charging module 1 comprises a substrate 101 and a charging module 102 arranged on the substrate 101, the power module 2 comprises a U-shaped plate 201 arranged on the other side of the substrate 101 opposite to the charging module 102 and a power module 202 arranged in the U-shaped plate 201, and heat conducting cotton 12 is respectively arranged on the outer walls of the left side and the right side of the U-shaped plate 201.

Working principle: the double-circuit charger is provided with the front radiating hole 9, the fan 10 and the rear radiating hole 11, the front radiating hole 9 and the rear radiating hole 11 are oppositely arranged, heat inside the double-circuit charger is conveniently taken away by air convection, the front radiating hole 9 and the rear radiating hole 11 are not arranged on the same straight line, and the front radiating hole 9 and the rear radiating hole 11 are arranged in a staggered mode, so that an air channel inside the shell is S-shaped, the air channel cannot deviate to a single side, and uniform heat dissipation of the heating position inside the double-circuit charger is more facilitated. In addition, since the main heating part of the main board is located in the power module 202, the U-shaped board 201 can transfer heat to the housing through the heat conducting cotton 12 and further dissipate the heat.

It should be noted that, the structures of the charging module 1 and the power module 2 are the requirements of the dual-channel non-interference charging circuit of the present utility model, and the main board structure shown in fig. 2 is required, and this part is not the focus of the present utility model, and therefore, will not be described herein.

It should be noted that the power input terminal 3 may be connected to a separate power input line (not shown), and the input plug may be different from the input plug of the dual-path charger in countries where the dual-path charger needs to be exported, so that the power input terminal 3 is not integrally and fixedly connected to the fixed type of power input line. In addition, the power output terminal 4 can also be adapted to a plurality of kinds of batteries, and the two-way charger applied to different fields including, but not limited to, unmanned aerial vehicles, unmanned ships, electric vehicles, electric bicycles, robots and the like can be obtained as long as the output plug 13 adapted according to the battery setting. For example, when the power output 4 is connected to an output plug 13 of the form shown in fig. 2, the charging requirements of the battery of the unmanned aerial vehicle can be met.

It should be noted that, the USB output terminal 5 is used for charging a mobile phone and a computer, and is not necessarily structured, and the dual-path charger provided by the present utility model may have the USB output terminal 5 or may not have the USB output terminal 5.

Example 2

On the basis of embodiment 1, this embodiment provides a preferred solution.

Further, as shown in fig. 3, the front heat dissipation hole 9 and the power output terminal 4 are aligned, the power input terminal 3 and the rear heat dissipation hole 11 are aligned, the USB output terminal 5 is located between the power output terminal 4 and the rear heat dissipation hole 11, and the heat dissipation performance of the layout structure is better.

In order to enhance the heat dissipation of the dual-path charger, as shown in fig. 3, the left and right sides of the U-shaped board 201 are respectively provided with heat conducting cotton 12, the outside of the heat conducting cotton 12 is provided with a heat conducting metal sheet 14, the heat conducting metal sheet 14 contacts the inner wall of the shell, and the heat generated by the main board can be effectively conducted to the shell through the heat conducting effect of the heat conducting cotton 12 and the heat conducting metal sheet 14, and then conducted out.

Further, the U-shaped plate 201 may be made of an aluminum profile, and the heat conductive metal sheet 14 may be made of a copper sheet, an aluminum sheet, or the like, which has good heat conductivity. Although the heat conductive metal sheet 14 has electrical conductivity, the heat conductive cotton 12 provided on the inner side has insulation property, and the upper and lower surfaces of the main board are not in contact with the housing, so that the housing is not electrically conductive, and the safety can be sufficiently ensured. In addition, in order to improve the heat conductivity, the shell can also be prepared from an aluminum profile, and meanwhile, the aluminum profile cannot leak electricity after being subjected to oxidation treatment, and the appearance is more beautiful and the industrial sense is stronger.

Further, a heat-conducting glue (not shown) is arranged between the heat-conducting metal sheet 14 and the shell, and the heat-conducting glue is beneficial to conducting heat generated by the main board to the shell, so that the heat dissipation effect is more obvious.

Further, as shown in fig. 1 and 2, the left side and/or right side outer wall of the shell is provided with a groove 15, and the groove 15 increases the heat dissipation area of the outer wall of the shell on one hand, and thins the position connected with the main board on the other hand, so that heat is easier to be dissipated outside the shell. Further, as shown in fig. 1 and 2, there are a plurality of grooves 15 arranged laterally side by side.

Claims (7)

1. The utility model provides a double-circuit charger convenient to heat dissipation, is in including mainboard and setting are in the casing outside the mainboard, its characterized in that still includes:

the main board comprises a charging module (1), a power supply module (2) electrically connected with the charging module (1), a power supply input end (3), a power supply output end (4) and an optional USB output end (5);

the shell comprises an upper shell (6) and a lower shell (7) which are buckled up and down, a plurality of through holes (8) are formed in the shell, the through holes (8) correspond to the power input end (3), the power output end (4) and the USB output end (5) respectively, and the power module (2) is a double-circuit interference-free charging circuit;

the power supply device comprises a shell, a charging module (1) and a USB (universal serial bus) output end (5) and a power supply input end (3), wherein a front radiating hole (9) and the power supply input end (3) are formed in the front side wall of the shell, a fan (10) is arranged in the shell and corresponds to the front radiating hole (9), the fan (10) is electrically connected with the charging module (1), the power supply output end (4), the USB output end (5) and a rear radiating hole (11) are formed in the rear side wall of the shell, and the front radiating hole (9) and the rear radiating hole (11) are not in the same straight line;

the charging module (1) comprises a substrate (101) and a charging module (102) arranged on the substrate (101);

the power module (2) comprises a U-shaped plate (201) arranged on the other side of the substrate (101) opposite to the charging module (102) and a power module (202) arranged in the U-shaped plate (201), wherein heat conducting cotton (12) is respectively arranged on the outer walls of the left side and the right side of the U-shaped plate (201).

2. A dual path charger for facilitating heat dissipation according to claim 1, wherein the front heat dissipation hole (9) and the power output terminal (4) are in a straight line, the power input terminal (3) and the rear heat dissipation hole (11) are in a straight line, and the USB output terminal (5) is located in the middle of the power output terminal (4) and the rear heat dissipation hole (11).

3. A dual-circuit charger for facilitating heat dissipation according to claim 1, wherein the heat conducting cotton (12) is provided with a heat conducting metal sheet (14) on the outside thereof in contact with the inner wall of the housing.

4. A two-way charger for facilitating heat dissipation according to claim 3, wherein a heat conductive adhesive is provided between the heat conductive metal sheet (14) and the housing.

5. A two-way charger for facilitating heat dissipation according to claim 1, wherein the housing is provided with grooves (15) on the left and/or right side outer walls.

6. A two-way charger for facilitating heat dissipation according to claim 5, wherein there are at least two of said grooves (15) arranged side by side.

7. A two-way charger for facilitating heat dissipation according to claim 6, wherein at least two of said grooves (15) are arranged side by side in a lateral direction.